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JP2006324943

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2006324943
PROBLEM TO BE SOLVED: To output voice in a desired direction from a plurality of speakers
arranged in a small space. SOLUTION: Each of the speakers 61-L1 to 61-R3 converts an audio
signal supplied from another device into an audio and outputs it. Each of the reflection plates 63L 1 to 63-R 3 reflects the sound output from each of the speakers 61-L 1 to 61-R 3 toward the
first position or at the first position based on the speaker It is arranged corresponding to each
speaker 61 so as to reflect toward the opposite second position, and moves to a position or
direction where the sound is reflected to the first position or the second position. By driving so as
to be driven, it becomes possible to output sound in a desired direction from a plurality of
speakers arranged in a small space. The present invention is applicable to audio output devices
and display systems. [Selected figure] Figure 6
Audio output device and method, and display system and method
[0001]
The present invention relates to an audio output device and method, and a display system and
method, and more particularly, to an audio output device and method capable of outputting
audio in a desired direction from a plurality of speakers arranged in a small space. And a display
system and method.
[0002]
In recent years, various types of speakers have become widespread, and speakers (hereinafter
referred to as unit speakers) that output sound by attaching a plurality of speakers to a
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1
rectangular box which is a single housing are also used. .
The unit speaker used with a thin display is variously devised so that the dimension of depth may
become short according to a display.
[0003]
FIG. 1 is a view showing the appearance of a conventional unit speaker 1 in which the dimension
of depth is shortened. Further, in FIG. 1, for convenience of description, although it is expressed
so as to be able to pass through the housing of the unit speaker 1, in reality, a saran net is
attached to the front and the inside of the housing can not be seen.
[0004]
In the unit speaker 1, the speaker 11-L1 which is an L (left) channel is disposed sideways so that
the sound is outputted on the left side in the drawing, and the speaker 11-R1 which is an R
(right) channel is an illustration of the sound. By being disposed sideways so as to be output to
the middle right side, the two-channel speakers (stereo) output sounds with a wide left and right.
[0005]
The unit speaker 1 is configured to include a speaker 11-L 1, a speaker 11-R 1, a boundary plate
12-L 1, a boundary plate 12-R 1, and a lid 13.
[0006]
The speaker 11-L1 is an L-channel speaker, and is connected to another device via a cable (not
shown) stored at the back side of the lid 13, and an audio signal input from those devices is
received. Convert to voice and output.
The speaker 11-R1 is an R channel speaker, and is connected to another device via a cable stored
on the back side of the lid 13 similarly to the speaker 11-L1 and is input from these devices
Convert the incoming voice signal into voice and output it.
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In addition, the detail of speaker 11-L1 and speaker 11-R1 is mentioned later.
[0007]
The boundary plate 12-L1 has a quadrangular shape, and each of the four sides of the
quadrilateral is disposed in contact with the top surface, the front surface, the back surface of the
unit speaker 1 and the top surface of the speaker 11-L1, By functioning as a baffle, it divides so
that the sound outputted from speaker 11-L1 may not go around to the right side (the back side
of speaker 11-L1) in unit speaker 1. The boundary plate 12-R1 is disposed with respect to the
speaker 11-R1 in the same manner as the boundary plate 12-L1, and the sound output from the
speaker 11-R1 is transmitted to the left side in the unit speaker 1 (speaker 11-R1 Partition so
that it does not go around on the back side of
[0008]
In the following description, the speaker 11-L 1 and the speaker 11-R 1 are simply referred to as
the speaker 11 when it is not necessary to distinguish them individually.
[0009]
FIG. 2 is a view showing the appearance of the speaker 11.
[0010]
The speaker 11 is a small speaker (speaker box) or the like that is used by being connected to a
desktop PC (Personal Computer) and the like, and usually provided to the viewer one by one on
the left and right sides, audio is provided by stereo. Be regenerated.
Also, in general, the dimension of the depth b tends to be longer than the width a (i.e., b> a) in
order to suppress the length of the width a.
Therefore, when arranging the speaker 11 in the unit speaker 1 (FIG. 1) in which the length of
the depth is limited, the speaker 11 is arranged sideways.
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[0011]
That is, as shown in FIG. 2, since the speaker 11 is longer in the dimension of the depth b than
the width a, when combined with another device (unit speaker 1) which can not have the depth,
the speaker 11 and the other devices Although it is difficult to physically incorporate them
because the width and depth do not match between them, the speaker 11 is made to face
sideways so as to face either left or right as in the unit speaker 1 of FIG. By arranging them, it
becomes possible to incorporate the speaker 11 into another device.
[0012]
The diaphragm 21 is made of pulp, plastic, light metal or the like formed into a cone or dome
shape, and is supplied from another device via a cable (not shown) connected to the other device.
By vibrating upon receiving an audio signal, an audio (sound wave) is output (radiated) into the
air.
[0013]
As described above, the conventional unit speaker 1 outputs sound.
[0014]
In addition, the baffle plates are fixed at the positions where the sound waves from the back of
the two speaker units resonate with each other in parallel with the center axes of the two speaker
units attached to the baffle plate and back-to-back. There is also an audio output device in which
the cabinet is eliminated (for example, Patent Document 1).
[0015]
Registered utility model No. 3073881
[0016]
However, when viewing from both the front and back of the unit speaker, there is a problem that
only the viewer on the front can view the audio and the viewer on the back can not view the
audio. The
[0017]
For example, although the speaker system disclosed in the registered utility model No. 3073881
has directivity by attaching a reflection plate to the front of the speaker unit, the reflection plate
reflects sound only to the front side It was not possible to let the viewer on the back side to listen
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to the audio.
[0018]
Also, for example, when the unit speaker is disposed at the center of a space such as a room, the
viewer can view the audio only from either the front or the back, and further, the other side. In
such a case, it is necessary to perform troublesome work such as turning the unit speaker itself
in the opposite direction.
[0019]
The present invention has been made in view of such a situation, and it is possible to output
voice in a desired direction from a plurality of speakers arranged in a small space.
[0020]
The audio output device according to the present invention converts a voice signal into voice and
outputs a plurality of speakers in the same direction, and reflects the voice output from each
speaker toward the first position, or Reflectors disposed corresponding to the respective
speakers so as to reflect toward the second position opposite to the first position as a reference,
and the sound is at the first position or the second position And driving means for driving the
reflecting plate so as to move it to the reflected position or direction, the reflecting plate being
responsive to the first position or the second position toward which the sound is reflected and
the position of the speaker, respectively. It is characterized in that it is arranged so as to be a
predetermined angle.
[0021]
The shape of the reflector can be a curved surface with a predetermined curvature.
[0022]
The drive means can be driven to move or pivot the reflector.
[0023]
The audio signal processing apparatus is characterized by further comprising processing means
for processing the audio signal according to the first position or the second position toward
which the audio is reflected and the position of the speaker.
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[0024]
The processing means may process the audio signal to adjust the sound pressure of the audio.
[0025]
The processing means may process the audio signal such that the phase of the audio at the first
position or the second position is the same as the phase of the audio output by the other
speakers.
[0026]
The processing means can process the audio signal so as to change the sound pressure of the
audio for each predetermined frequency band.
[0027]
According to the audio output method of the present invention, a plurality of speakers for
converting an audio signal into audio and outputting the audio in the same direction, and
reflecting the audio output from each speaker toward the first position, or A reflector is disposed
corresponding to each speaker so as to reflect toward the second position opposite to the first
position as a reference, and the sound is transmitted to the first position or the second position.
The reflector is driven to move to a position or direction to be reflected to the position of the
light source, and the reflector is predetermined according to the first position or the second
position to which the sound is reflected and directed and the position of the speaker,
respectively. It is characterized in that it is arranged to be at an angle.
[0028]
In the audio output apparatus and method according to the present invention, a plurality of
speakers for converting an audio signal into audio and outputting the audio in the same
direction, and reflecting the audio output from each of the speakers toward the first position A
reflector is disposed corresponding to each speaker so as to reflect toward the second position
opposite to the first position with respect to the speaker, and the sound is at the first position
Alternatively, the reflector is driven to move to a position or direction where it is reflected to the
second position, and the reflector depends on the first position or the second position toward
which the sound is reflected and the position of the speaker, It arrange ¦ positions so that it may
become each predetermined angle.
[0029]
A display system according to the present invention reflects a plurality of speakers for converting
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an audio signal into an audio corresponding to an image and outputting the audio in the same
direction, and reflects the audio output from each of the speakers toward the first position.
Reflectors disposed corresponding to the respective speakers so as to reflect toward the second
position opposite to the first position with reference to the speakers, and the sound is
transmitted to the first position or the second position And 2) driving means for driving the
reflecting plate to move the reflecting plate to the position or direction to be reflected, and the
reflecting plate is at the first position or the second position where the sound is reflected and
directed to the position of the speaker Accordingly, they are arranged so as to have
predetermined angles respectively.
[0030]
The shape of the reflector can be a curved surface with a predetermined curvature.
[0031]
The drive means can be driven to move or pivot the reflector.
[0032]
The audio signal processing apparatus is characterized by further comprising processing means
for processing the audio signal according to the first position or the second position toward
which the audio is reflected and the position of the speaker.
[0033]
The processing means may process the audio signal to adjust the sound pressure of the audio.
[0034]
The processing means may process the audio signal such that the phase of the audio at the first
position or the second position is the same as the phase of the audio output by the other
speakers.
[0035]
The processing means can process the audio signal so as to change the sound pressure of the
audio for each predetermined frequency band.
[0036]
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In a display method of a display system for displaying an image by a plurality of display devices
attached to a plurality of attachment positions and configured detachably, the display method of
the present invention converts an audio signal into an audio corresponding to an image And a
plurality of speakers outputting in the same direction, and the voices output from the respective
speakers are reflected toward the first position, or the second on the opposite side to the first
position with respect to the speakers And a reflector disposed corresponding to each of the
speakers so as to reflect toward the position of, and to move the sound to a position or direction
where it is reflected to the first position or the second position. The reflecting plate is driven, and
the reflecting plate is arranged to be at a predetermined angle according to the first position or
the second position toward which the sound is reflected and directed and the position of the
speaker.
[0037]
In the display system and the display method of the present invention, a plurality of speakers for
converting an audio signal into an audio corresponding to an image and outputting the audio in
the same direction, and an audio output from each of the speakers are set at a first position. A
reflector is disposed corresponding to each speaker so as to reflect toward or reflect toward the
second position opposite to the first position with respect to the speaker, and Is driven to move
to a position or direction in which the sound is reflected to the first position or the second
position, and the reflection plate is configured to reflect the sound toward the first position or the
second position and the speaker Depending on the position, they are arranged at predetermined
angles.
[0038]
According to the present invention, audio can be output in a desired direction from a plurality of
speakers arranged in a small space.
[0039]
The best mode of the present invention will be described below. The correspondence between
the disclosed invention and the embodiment is as follows.
Even though there are embodiments described in the present specification but corresponding to
the invention that are not described herein, the embodiments correspond to the invention. It does
not mean that it is not a thing.
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Conversely, even if the embodiments are described herein as corresponding to an invention, that
means that the embodiments do not correspond to inventions other than the invention. It is not a
thing.
[0040]
Further, this description does not mean all of the inventions described in the specification.
In other words, this description is the existence of the invention described in the specification
and not claimed in the present application, that is, the inventions to be filed in the future, to be
filed by division, to appear by correction, and to be added. It does not deny the existence.
[0041]
According to the present invention, an audio output device is provided.
The audio output device (for example, the unit speaker 51 in FIG. 5) converts a audio signal into
audio and outputs a plurality of speakers in the same direction (for example, the speakers 61-L1
to 61-R3 in FIG. 5); The sound output from each speaker is reflected toward the first position (for
example, the position of the viewer 71 at the front of the unit speaker 51) or opposite to the first
position with respect to the speaker Reflectors (eg, reflector 63 shown in FIG. 5) disposed
corresponding to the respective speakers so as to reflect toward the second position (eg, the
position of the viewer 71 at the back of the unit speaker 51). -L1 to 63-R3), and driving means
for driving the reflection plate to move the sound to a first position or a second position or a
position or direction where the sound is reflected (for example, the driving unit 91-of FIG.
Comprising 1 to 91-R3) and, reflector, speech according to the position of the first position or the
second position and the speaker toward being reflected, it is arranged so that each becomes a
predetermined angle.
[0042]
The shape of the reflector can be a curved surface with a predetermined curvature.
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[0043]
The drive means can be driven to move or pivot the reflector.
[0044]
The audio signal processing unit includes processing means (for example, signal processing units
154-1 to 154-3 in FIG. 11) that processes the audio signal according to the first position or the
second position toward which the audio is reflected and the position of the speaker.
[0045]
The processing means may process the audio signal to adjust the sound pressure of the audio.
[0046]
The processing means may process the audio signal such that the phase of the audio at the first
position or the second position is the same as the phase of the audio output by the other
speakers.
[0047]
The processing means can process the audio signal so as to change the sound pressure of the
audio for each predetermined frequency band.
[0048]
According to the present invention, an audio output method is provided.
In this audio output method, a plurality of speakers for converting an audio signal into audio and
outputting them in the same direction, and the audio output from each of the speakers are
reflected toward the first position or based on the speaker A reflective plate disposed
corresponding to each speaker is disposed to reflect toward the second position opposite to the
first position, and the sound is at the first position or the second position. The reflector is driven
to move to a position or direction where the sound is reflected, and the reflector has a
predetermined angle and a predetermined position depending on the first position or the second
position where the sound is reflected and directed and the position of the speaker, respectively.
Are arranged to be
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[0049]
According to the present invention, a display system is provided.
This display system (for example, the scalable television system 101 in FIG. 9) converts a voice
signal into voice corresponding to an image and outputs the same in the same direction (for
example, the speakers 61-L1 to 61 in FIG. 9). Reflect the audio output from each of the speakers
towards a first position (eg, the position of the viewer 71 at the front of the scalable television
system 101), or Reflectors (e.g., arranged corresponding to respective speakers) to reflect
towards a second position opposite to the position (e.g. the position of the viewer 71 at the back
of the scalable television system 101) , Reflectors 63-L1 to 63-R3) of FIG. 9 and a position or
direction in which the sound is reflected to the first position or the second position. Drive means
(for example, drive parts 91-L1 to 91-R3 in FIG. 11) for driving the plate, and the reflection plate
is disposed at the first position or the second position toward which the sound is reflected and
the position of the speaker Accordingly, they are arranged so as to have predetermined angles.
[0050]
The shape of the reflector can be a curved surface with a predetermined curvature.
[0051]
The drive means can be driven to move or pivot the reflector.
[0052]
The audio signal processing unit includes processing means (for example, signal processing units
154-1 to 154-3 in FIG. 11) that processes the audio signal according to the first position or the
second position toward which the audio is reflected and the position of the speaker.
[0053]
The processing means may process the audio signal to adjust the sound pressure of the audio.
[0054]
The processing means may process the audio signal such that the phase of the audio at the first
position or the second position is the same as the phase of the audio output by the other
09-05-2019
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speakers.
[0055]
The processing means can process the audio signal so as to change the sound pressure of the
audio for each predetermined frequency band.
[0056]
According to the present invention, a display method is provided.
According to this display method, a plurality of speakers for converting an audio signal into an
audio corresponding to an image and outputting the audio in the same direction, and reflecting
the audio output from each speaker toward the first position, A reflector is disposed
corresponding to each speaker so as to reflect toward the second position opposite to the first
position with respect to the speaker, and the sound is at the first position or The reflector is
driven to move to a position or direction where it is reflected to the second position, which is
responsive to the first or second position where the sound is reflected and directed, and the
position of the speaker, respectively It is arrange ¦ positioned so that it may become a
predetermined angle.
[0057]
Hereinafter, embodiments of the present invention will be described with reference to the
drawings.
[0058]
In order to make the description easy to understand, a pair of left and right speakers consisting
of an L (left) channel and an R (right) channel will be described with reference to FIG. 3 and FIG.
A plurality of sets of speakers will be described with reference to FIG.
[0059]
FIG. 3 is a view showing an example of the appearance of a unit speaker 51 to which the present
invention is applied.
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Further, in FIG. 3, for convenience of explanation, it is expressed so as to be able to penetrate the
housing of the unit speaker 51, but in practice, for example, the side surface, the top surface, and
the bottom surface are formed as a so-called cabinet. And on the back, a saran net is stuck and
the inside of the case can not be seen.
[0060]
The unit speaker 51 is an example of the audio output device of the present invention formed in,
for example, a rectangular shape incorporating a plurality of speakers.
[0061]
The unit speaker 51 is configured to include, for example, a speaker 61-L 1, a speaker 61-R 1, a
boundary plate 62-L 1, a boundary plate 62-R 1, a reflection plate 63-L 1, and a reflection plate
63-R 1.
[0062]
Each of the speaker 61-L 1 and the speaker 61-R 1 is a small speaker (speaker box) or the like
used by being connected to a desktop PC, and is usually provided to the viewer one on each side.
Audio is played by stereo.
In addition, each of the speakers 61-L1 and 61-R1 generally tends to have a longer dimension in
the depth than the width (ie, depth> width) in order to reduce its own width. .
Therefore, when each of the speaker 61-L 1 and the speaker 61-R 1 is arranged in the unit
speaker 51 whose depth is limited, either the speaker 61-L 1 and the speaker 61-R 1 can be
either left or right The audio can be reproduced by stereo by arranging it so as to face sideways.
[0063]
The speaker 61-L1 is a speaker of L channel and is connected to another device such as a
television receiver, a music player, or a desktop PC via a cable (not shown). It converts the input
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L channel audio signal into audio and outputs it.
Furthermore, the speaker 61-R1 is a speaker of R channel, and, like the speaker 61-L1, for
example, it is connected to a television receiver or the like via a cable, and the audio of R channel
input from those devices Converts a signal to voice and outputs it.
[0064]
The boundary plate 62-L1 is, for example, in the shape of a quadrilateral, and each of the four
sides of the quadrilateral is disposed in contact with the top surface, front and back of the unit
speaker 51 and the top surface of the speaker 61-L1. Ru.
In addition, the boundary plate 62-L1 functions as a baffle, for example, so that the sound output
from the speaker 61-L1 does not go around the right side (the back side of the speaker 61-L1) in
the unit speaker 51. I am divided.
[0065]
Similar to the boundary plate 62-L1, the boundary plate 62-R1 has, for example, a rectangular
shape, and each of the four sides of the square corresponds to the top, front, and rear of the unit
speaker 51, and the speaker 61-R1. It is arranged to be in contact with each of the upper
surfaces, and functions as a baffle so that the sound output from the speaker 61-R1 is divided so
that it does not go around the left side of the unit speaker 51 (the back side of the speaker 61R1). There is.
[0066]
That is, by the reflecting plate 63-L 1 and the boundary plate 62-R 1, for example, the sound
waves (sounds) output from the speaker 61-L 1 and the speaker 61-R 1 do not interfere with
each other.
[0067]
Each of the reflection plate 63-L 1 and the reflection plate 63-R 1 is processed by, for example, a
resin such as acrylic, plastic, polypropylene or polyethylene, a metal such as aluminum, iron,
magnesium or titanium, NC (Numerical Control) processing It is a board made of a material such
as stone or wood.
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[0068]
The reflecting plate 63-L1 has a shape (for example, an arc-like shape) having a curved surface
with a predetermined curvature so as to reflect the sound output from the speaker 61-L1 in the
direction of the front (or back) of the unit speaker 51 Or it is a plate having a shape similar to
that (for example, a shape combining a plurality of flat surfaces, etc.).
That is, the reflection plate 63-L 1 reflects the sound (sound wave) output from the speaker 61-L
1 in the direction of the front (or back) of the unit speaker 51.
[0069]
The reflection plate 63-R1 has a shape or a curved surface with a predetermined curvature that
reflects the sound output from the speaker 61-R1 in the direction of the front (or back) of the
unit speaker 51, similarly to the reflection plate 63-L1. It is a board that has a similar shape to
that.
That is, the reflecting plate 63-R 1 reflects the sound (sound wave) output from the speaker 61-R
1 in the direction of the front (or back) of the unit speaker 51.
[0070]
In addition, each of the reflection plate 63-L 1 and the reflection plate 63-R 1 may have a shape
that reflects sound (sound wave) in the direction of the front (or back) of the unit speaker 51, for
example, a primary or secondary curved surface Or the like, or a flat plate or the like in which
one or more sheets are combined.
Furthermore, by using, for example, a reflecting material, a sound absorbing material, or the like
on each surface of the reflecting plate 63-L 1 and the reflecting plate 63-R 1, sound (voices
output from each of the speaker 61-L 1 and the speaker The reflectance of the sound wave) may
be changed, or the sound absorption coefficient may be changed, or, for example, a skin or cloth
09-05-2019
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may be attached to each of the surfaces.
[0071]
In the space on the upper surface of each of the speaker 61-L 1 and the speaker 61-R 1, a cable
(not shown) for connecting the speaker 61-L 1 and the speaker 61-R 1 to a television receiver
etc. It may be stored or function as a resonance box for enhancing bass.
Moreover, it is also possible to provide space in each of the upper surface and lower surface of
each of speaker 61-L1 and speaker 61-R1.
[0072]
Furthermore, in the following description, when it is not necessary to distinguish the speaker 61L1 and the speaker 61-R1 individually, they are simply referred to as the speaker 61 and the
boundary plate 62-L1 and the boundary plate 62-R1 are individually distinguished. If not
necessary, it is simply referred to as the boundary plate 62, and the reflectors 63-L1 and 63-R1
are simply referred to as the reflector 63 if it is not necessary to distinguish them individually.
[0073]
FIG. 4 is a view for explaining the reflection of the sound wave (sound) by the reflection plate 63.
The left side of FIG. 4 shows the flow of sound waves when each of the reflecting plate 63-L1 and
the reflecting plate 63-R1 faces the front (surface), and the right side of FIG. 4 shows the
reflecting plate 63-L1 and The flow of a sound wave in case each of reflective plate 63-R1 is
turned to a back (back) is shown.
Furthermore, the example shown in FIG. 4 is a view of the unit speaker 51 (FIG. 3) viewed from
the upper side, and the dotted line in the drawing indicates the traveling direction of the sound
wave.
In the direction of the unit speaker 51, downward in the figure is the front (front), and upward in
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the figure is the back (back).
[0074]
In the example shown in FIG. 4, the reflecting plate 63-L1 reflects the incident sound wave
according to the angle of the incident sound wave.
That is, the incident angle of the sound wave which is the sound wave output from the speaker
61-L1 and is incident on the reflection plate 63-L1 is equal to the reflection angle of the sound
wave reflected by the reflection plate 63-L1.
Therefore, as shown in FIG. 4, among the sound waves output from the speaker 61-L 1, the
sound waves incident on the reflecting plate 63-L 1 at a steeper angle are reflected at a steeper
angle, and a more gentle angle The sound wave incident on the reflection plate 63-L1 is reflected
at a more gentle angle.
As a result, the audio (sound wave) output from more speakers 61-L 1 reaches the viewer 71.
[0075]
Further, similarly to the reflection plate 63-L1, the reflection plate 63-R1 makes, for example, a
sound wave incident on the reflection plate 63-R1 at a steep angle among the sound waves
output from the speaker 61-R1 steep. According to the angle of the incident sound wave, the
incident sound wave is reflected according to the angle of the incident sound wave, such as
reflecting the sound wave which is reflected at an angle and is incident on the reflection plate 63R1 at a gentle angle. As a result, the voice (sound wave) output from more speakers 61-R 1
reaches the viewer 71.
[0076]
As shown on the left side of FIG. 4, when each of the reflecting plate 63-L 1 and the reflecting
plate 63-R 1 faces the front, the sound wave output from the speaker 61-L 1 as a sound source is
indicated by a dotted line in the figure. Thus, the light is reflected by the reflecting plate 63-L 1
facing the front, and reaches the viewer 71 present on the front side of the unit speaker 51.
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In addition, the sound wave output from the speaker 61-R1 as a sound source is also reflected by
the reflecting plate 63-R1 facing the front as shown by the dotted line in the figure, and the
viewer who is on the front side of the unit speaker 51 Reach 71.
[0077]
On the other hand, as shown on the right side of FIG. 4, when each of the reflection plate 63-L 1
and the reflection plate 63-R 1 faces the back, the sound wave output from the speaker 61-L 1 as
the sound source is a dotted line in the drawing. As shown in, the light is reflected by the
reflecting plate 63-L 1 facing the back, and reaches the viewer 71 at the back of the unit speaker
51.
In addition, the sound wave output from the speaker 61-R1 which is a sound source is also
reflected by the reflection plate 63-R1 facing the back as shown by the dotted line in the figure,
and the viewer who is on the back side of the unit speaker 51 Reach 71.
[0078]
As described above, depending on the orientations of the reflecting plate 63-L 1 and the
reflecting plate 63-R 1, the direction of the sound output from the unit speaker 51 can be
directed to either the front side or the back side.
[0079]
Even if the sound wave is output from the speaker 61-L1 or the speaker 61-R1, depending on the
output angle, the sound wave goes straight as it is without entering the reflection plate 63-L1 or
the reflection plate 63-R1. Although there are sound waves, those sound waves do not reach the
viewer 71 and are not viewed by the viewer 71.
Further, the sound (sound wave) is reflected on the surrounding wall or the like by the reflection
plate 63-L 1 and the reflection plate 63-R 1 and reaches the viewer 71, causing the viewer 71 to
perceive a so-called sound field.
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[0080]
FIG. 5 is a view showing an example of the appearance of a unit speaker 51 to which the present
invention is applied, which is constituted by a plurality of sets of speakers 61. As shown in FIG.
[0081]
In FIG. 5, for convenience of explanation, the casing of the unit speaker 51 is shown to be
transparent, but in fact, as in FIG. 3, for example, the side surface, the top surface, and the bottom
surface are formed as a so-called cabinet. In addition, on the front and back, a saran net is
attached, and the inside of the case can not be seen.
Further, the same parts as those shown in FIG. 3 are denoted by the same reference numerals,
and the description thereof will be omitted (as appropriate).
[0082]
The unit speaker 51 is an example of the audio output device according to the present invention,
which is formed in, for example, a rectangular shape incorporating a plurality of speakers, as
described above.
[0083]
In the example illustrated in FIG. 5, the unit speaker 51 includes, for example, a speaker 61-L 1, a
speaker 61-R 1, a speaker 61-L 2, a speaker 61-R 2, a speaker 61-L 3, a speaker 61-R 3, and a
boundary plate 62-L 1. , Boundary plate 62-R1, boundary plate 62-L2, boundary plate 62-R2,
boundary plate 62-L3, boundary plate 62-R3, reflection plate 63-L1, reflection plate 63-R1,
reflection plate 63-L2, reflection It is comprised so that board 63-R2, reflecting plate 63-L3, and
reflecting plate 63-R3 may be included.
[0084]
That is, the unit speaker 51 of FIG. 5 is a speaker 61-L1, a speaker 61-R1, a speaker 61-L2, a
speaker 61-R2, a speaker 61-L3, and three pairs (six) of speakers 61-R3. Among the six speakers,
the speakers 61-L 1, the speakers 61-L 2, and the speakers 61-L 3, which are L-channel
speakers, are disposed sideways so as to face the left side. Each of the speakers 61-R 1, the
speakers 61-R 2, and the speakers 61-R 3, which are the R channel speakers, is arranged
sideways so as to turn to the right.
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[0085]
This is realized by the speakers of L channel and R channel in the case of expressing the sound
having the left and right spread to the viewer 71 by the speakers (stereo) of two channels, but in
the case of the example shown in FIG. The speaker 61-L1 (L channel) and the speaker 61-R1 (R
channel) form a pair, and the speaker 61-L2 (L channel) and the speaker 61-R2 (R channel) form
a pair. The pair of L3 (L channel) and the speaker 61-R3 (R channel) realizes a sound with a wide
left and right.
[0086]
Also, each of the reflecting plates 63 -L 1 to 63 -R 3 reflects the sound waves (sound) outputted
from the speakers 61 -L 1 to 61 -R 3 in the direction of the front or back of the unit speaker 51.
The sound wave (sound) output from each of the speakers 61-L 1 to 61-R 3 is reflected to the
front or back of the unit speaker 51.
[0087]
Specifically, among the reflecting plates 63-L 1 to 63-R 3, each of the reflecting plate 63-L 1 and
the reflecting plate 63-R 1 faces the back, so each of the speaker 61-L 1 and the speaker 61-R 1
Sound reflected from the speaker 71 in the direction of the viewer 71 on the back side, and the
other reflectors 63-L 2 to 63-R 3 face the front, so the speakers 61-L 2 to 61- The sound output
from each of R3 is reflected in the direction of the viewer 71 who is on the front side.
[0088]
The materials and shapes of the reflecting plates 63-L 2 to 63-R 3 are the same as those of the
reflecting plate 63-L 1 and the reflecting plate 63-R 1 described above.
[0089]
Further, in the following description, similarly to FIG. 3 described above, when it is not necessary
to distinguish the speakers 61-L1 to 61-R3 individually, they are simply referred to as the
speaker 61, and the boundary plates 62-L1 to 62-R3. Are simply referred to as the boundary
plate 62, and the reflectors 63-L1 to 63-R3 are simply referred to as the reflector 63 when it is
not necessary to distinguish them individually.
[0090]
FIG. 6 is a diagram for explaining the reflection of sound waves (sounds) by the reflectors 63 of
09-05-2019
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the plurality of sets in the unit speaker 51 configured of the speakers 61 of the plurality of sets.
[0091]
The same parts as in the case shown in FIG. 4 are denoted by the same reference numerals, and
the description thereof will be omitted (as appropriate).
The example shown in FIG. 6 is a view of the unit speaker 51 (FIG. 5) viewed from the upper side,
as in FIG. 4, and the dotted line in the figure indicates the traveling direction of the sound wave.
Furthermore, in FIG. 6, for the sake of simplicity, the traveling directions of the sound waves
(sounds) output from each of the speaker 61-L2 and the speaker 61-R3 are omitted and
expressed. It becomes the same as the traveling direction of the sound wave output from the
other speaker 61 which showed the advancing direction.
In the direction of the unit speaker 51, downward in the figure is the front (front), and upward in
the figure is the back (back).
[0092]
The sound wave output from the speaker 61-L1, which is a sound source, is reflected by the
reflection plate 63-L1 facing the back as shown by three dotted lines in the figure, so that the
viewer 71 who is on the back side is The sound wave output from the speaker 61-R1 which is the
sound source is reflected by the reflection plate 63-R1 facing the back as shown by the three
dotted lines in the figure. The viewer 71 is reached.
[0093]
Further, the sound wave output from the speaker 61-L2 which is a sound source is reflected by
the reflecting plate 63-L2 facing the front and reaches the viewer 71 who is on the front side,
and from the speaker 61-R2 which is a sound source The sound wave to be output is reflected by
the reflecting plate 63-R2 facing the front, and reaches the viewer 71 at the front.
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Furthermore, similarly, the sound wave output from the speaker 61-L3 which is a sound source is
reflected by the reflecting plate 63-L3 facing the front, and reaches the viewer 71 who is on the
front side, and the speaker 61 which is a sound source The sound wave output from R3 is
reflected by the reflecting plate 63-R3 facing the front, and reaches the viewer 71 at the front.
[0094]
That is, among the reflecting plates 63-L 1 to 63-R 3, each of the reflecting plate 63-L 1 and the
reflecting plate 63-R 1 faces the back, so that the output from each of the speaker 61-L 1 and the
speaker 61-R 1 is Sound is reflected in the direction of the viewer 71 who is on the back side,
and the other reflectors 63-L 2 to 63-R 3 face the front, so each of the speakers 61-L 2 to 61-R 3
Are reflected in the direction of the viewer 71 who is on the front side.
[0095]
In addition, each of the reflection plates 63-L 1 to 63-R 3 reflects the incident sound wave
according to the incident angle of the sound wave.
That is, the sound waves output from the speakers 61-L1 to 61-R3, respectively, and the incident
angles of the sound waves incident on the reflectors 63-L1 to 63-R3, and the reflectors 63-L1 to
63, respectively. The reflection angle of the sound wave reflected by each of -R3 is equal.
Therefore, as shown in FIG. 6, among the sound waves output from each of the speakers 61-L1 to
61-R3, the sound waves incident on each of the reflection plates 63-L1 to 63-R3 at a steeper
angle are: The sound waves reflected at steeper angles and incident on the reflectors 63-L 1 to
63-R 3 at more gentle angles are reflected at more gentle angles.
As a result, the audio (sound wave) outputted from each of the more speakers 61-L 1 to 61-R 3
reaches the viewer 71.
[0096]
Furthermore, since the viewer 71 is usually considered to often view at the center of the unit
speaker 51, for example, the position between the speaker 61-L1 and the speaker 61-R1 which is
the center of the unit speaker 51 is When considered as an axis at the center of the unit speaker
51, when sound waves are reflected in the direction of the viewer 71 on the center axis, the angle
09-05-2019
22
of the reflection plate 63 is made steeper as it goes away from the center axis. It becomes
possible to reflect the incoming sound wave toward the viewer 71 (toward the central axis).
[0097]
Specifically, the reflector 63-L2 facing the front has a front and a back opposite to the center
axis, but is steeper than the reflector 63-L1 facing the back. The reflection plate 63-L3 facing the
front is at a steeper angle than the reflection plate 63-L2 facing the front with respect to the
central axis.
Similarly, the reflector 63-R2 facing the front has a front and a back opposite to the central axis
but is steeper than the reflector 63-R1 facing the back. The reflection plate 63-R3, which faces
the front, is at a steeper angle than the reflection plate 63-R2, which faces the front, with respect
to the central axis (note that the reflection plate 63- in FIG. Although the angles with respect to
the central axis of each of L1 to 63-R3 are expressed to emphasize the difference in angle, in fact,
the angles do not have to be the same as the angles in the figure).
[0098]
Thus, by changing the direction of the reflection plate 63, the unit speaker 51 outputs the sound
in the direction of the front of the user or in the direction of the back according to the position of
the viewer 71, for example. be able to.
Also, by making the angle of the reflecting plate 63 steeper as it gets farther from the central axis
of the unit speaker 51, the reflecting plate 63 can reflect the sound wave incident from the
speaker 61 toward the viewer 71. The viewer 71 can view audio (sound waves) outputted from
the plurality of sets of speakers 61 with high sound quality.
In other words, it can be said that the unit speaker 51 can output high-quality sound to the
viewer 71.
[0099]
Furthermore, by changing the angle with respect to the central axis of the reflection plate 63, it is
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possible to obtain the same sound quality even when the distance between the speakers 61 of
the L channel and the R channel is extended.
[0100]
By the way, although it is the direction of the reflecting plate 63 mentioned above, the viewer 71
changes the direction by manually changing the arrangement of the reflecting plate 63, or
changes the direction by driving the reflecting plate 63 by an actuator or the like. be able to.
Therefore, the method of changing the direction of the reflection plate 63 will be described
below with reference to FIGS. 7 and 8.
[0101]
First, with reference to FIG. 7, an example of the operation in the case where the reflection plate
63 changes the direction will be described.
[0102]
In FIG. 7, each of FIGS. 7A to 7D is a top view of the reflecting plate 63 disposed corresponding
to the speaker 61 (for example, the reflecting plate 63-L1 disposed corresponding to the speaker
61-L1) from the upper side 7A, 7B, 7C, and 7D in the order of FIG. 7A, FIG. 7B, FIG. 7C, and FIG.
7D, the operation for the reflection plate 63 facing the front to face the back will be described in
the following order .
Although not shown, in actuality, a speaker 61 (for example, a speaker) that outputs sound
reflected by the reflection plate 63 (for example, the reflection plate 63-L1) on the right side of
each of FIGS. 7A to 7D. 61-L1) are arranged.
[0103]
First, as shown in FIG. 7A, the reflection plate 63 is a predetermined position that reflects the
sound output from the speaker 61 to the front surface (downward in the drawing) of the unit
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speaker 51, and is indicated by a dotted line in the drawing. It arrange ¦ positions on the guide
81-1 shown by these.
That is, at this time, the sound output from the speaker 61 is reflected by the reflection plate 63
and output to the front of the unit speaker 51.
[0104]
Next, as shown in FIG. 7B, the reflecting plate 63 moves on the guide 81-1 to the lower right
(that is, the reflecting plate 63 indicated by the solid line in FIG. 7B is the one of the reflecting
plate 63 indicated by the dotted line). Move in the direction).
Then, the reflecting plate 63 moves to the position of the intersection of the guides 81-1 and the
guides 81-2 by moving on the guides 81-1.
[0105]
Next, as shown in FIG. 7C, the reflecting plate 63 moved to the position of the intersection of the
guide 81-1 and the guide 81-2 rotates 90 ° counterclockwise.
That is, the reflecting plate 63 can move on the guide 81-2 as the direction in which it is facing
changes.
[0106]
Next, as shown in FIG. 7D, in the state shown in FIG. 7C, the reflecting plate 63 rotated 90
degrees counterclockwise is a guide from the position of the intersection of the guide 81-1 and
the guide 81-2. The upper surface 81-2 is moved to the lower left (that is, the reflecting plate 63
indicated by a dotted line in FIG. 7D is moved in the direction of the reflecting plate 63 indicated
by a solid line).
09-05-2019
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The reflection plate 63 is a predetermined position that reflects the sound output from the
speaker 61 to the back surface (upper side in the drawing) of the unit speaker 51 by moving the
top of the guide 81-2 to the lower left. It will be disposed on the guide 81-2.
[0107]
As described above, the reflection plate 63 moves a predetermined distance along the guides 811 and the guide 81-2 or rotates by a predetermined angle, whereby the sound output from the
speaker 61 can be converted into a unit speaker. It will be placed at a predetermined position to
be reflected either on the front or back of 51.
[0108]
In contrast to the above-described example, in the case where the reflecting plate 63 disposed at
the position to reflect the sound to the back is disposed to the position to reflect to the front, the
reverse order to the above description, that is, FIG. The reflecting plate 63 may be moved or
rotated in the order of FIG. 7C, FIG. 7B, and FIG. 7A.
[0109]
7 is a method of moving or rotating the reflection plate 63 described in FIG. 7, but of course the
method of manually operating the operation by the viewer 71, for example, drives the reflection
plate 63 by an actuator using a ball screw or the like. It may be a method of
Next, with reference to FIG. 8, a ball screw actuator for driving the reflection plate 63 will be
described.
[0110]
FIG. 8 is a plan view showing a configuration of a drive unit 91 for moving or rotating the
reflecting plate 63, which is an example of an actuator using a ball screw.
Further, in the example shown in FIG. 8, for convenience of explanation, an axis parallel to a ball
screw 94-1 described later is taken as a Y axis, and an axis parallel to a ball screw 94-2 described
later is taken as an X axis. .
09-05-2019
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[0111]
In the drive unit 91, the reflecting plate 63 is moved in the Y-axis direction together with the
rotating unit 96 by the ball screw 94-1, the slide member 92-1, the servomotor 93-1, and the
support plate 95-1.
Further, in the drive unit 91, the ball screw 94-1, the slide member 92-1, the servomotor 93-, and
the ball screw 94-2, the slide member 92-2, the servomotor 93-2, and the support plate 95-2. 1
and the entire support plate 95-1 are moved in the X-axis direction.
[0112]
The rotation unit 96 includes a motor, a reduction gear, and the like, is fixed to the slide member
92-1, and rotates the reflection plate 63.
That is, in the drive unit 91, the reflection plate 63 is rotated by the rotation unit 96 provided on
the slide member 92-1.
For example, the rotation unit 96 rotates the reflection plate 63 counterclockwise 90 degrees to
change the direction of the reflection plate 63.
[0113]
In the drive unit 91, a support plate 95-1 and a support plate 95-2 are erected at right angles to
a substrate (not shown), and the support plate 95-1 and the support plate 95-2 are provided. The
two ends of a ball screw 94-1 and a ball screw 94-2 which are two screw rods vertically disposed
to each other are rotatably supported.
The servomotor 93-1 and the servomotor 93-2 are arranged such that the positions of the
support plate 95-1 and the support plate 95-2 are constant, and the output shaft of the
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servomotor 93-1 is The output shaft of the servomotor 93-2 is coaxially connected to the ball
screw 94-2 and the ball screw 94-2.
[0114]
Further, a screw hole (not shown) is formed in the slide member 92-1 which is a movable
member formed in a rectangular parallelepiped shape, and the screw hole formed in the slide
member 92-1 is a ball screw 94. The slide plate 92 is attached to the slide member 92-1 at a
predetermined position.
That is, when the servomotor 93-1 rotates by a predetermined number of rotations, the slide
member 92-1 is moved and positioned at a predetermined position in the Y-axis direction via the
ball screw 94-1, and thereby the slide is performed. The reflecting plate 63 is also positioned at a
predetermined position in the Y-axis direction together with the member 92-1.
[0115]
Furthermore, in the slide member 92-2 which is a moving member formed in a rectangular
parallelepiped shape, a screw hole (not shown) is formed similarly to the slide member 92-1, and
is formed in the slide member 92-2 The screw hole is screwed into the ball screw 94-2, and the
slide member 92-1 is attached to the slide member 92-2 at a predetermined position.
That is, when the servomotor 93-2 rotates by a predetermined number of rotations, the slide
member 92-2 is moved and positioned to a predetermined position in the X-axis direction via the
ball screw 94-2, and the slide is thereby performed. The reflecting plate 63 is also moved to a
predetermined position in the X-axis direction and positioned together with the member 92-1.
[0116]
For example, in the example shown in FIG. 8, when the servomotor 93-1 rotates a predetermined
number of rotations, the reflecting plate 63 attached to the slide member 92-1 moves in the Yaxis direction, and the servomotor 93-2 moves. Is rotated by a predetermined number of
rotations, the reflecting plate 63 attached to the slide member 92-1 is moved and positioned in
the X axis direction.
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[0117]
More specifically, for example, in FIG. 7 described above, the reflecting plate 63 facing the front
of the unit speaker 51 is driven to face the back, but this operation is driven by the ball screw in
FIG. When realized by an actuator, it operates as follows.
[0118]
First, as shown in FIG. 7A, when the reflector 63 reflects sound on the front surface of the unit
speaker 51, the drive unit 91 is in the state shown in FIG. 8 and then as shown in FIG. 7B, When
moving the reflecting plate 63 to the lower right on the guide 81-1, the drive unit 91 causes the
servomotor 93-1 to rotate by a predetermined number of rotations, thereby moving the slide
member 92-through the ball screw 94-1. 1 moves to the lower right, the reflecting plate 63
attached to the slide member 92-1 also moves to the lower right along the guide 81-1, and the
intersection of the guide 81-1 and the guide 81-2 Move to the position of.
[0119]
Next, as shown in FIG. 7C, when the reflecting plate 63 moved to the position of the intersection
of the guide 81-1 and the guide 81-2 is rotated by 90 ° counterclockwise, the drive unit 91 is a
rotating portion 96 rotates the reflecting plate 63 also by 90 degrees counterclockwise.
Next, as shown in FIG. 7D, when moving the reflection plate 63 to the lower left on the guide 812, the drive unit 91 causes the ball screw 94-to rotate by rotating the servomotor 93-2 by a
predetermined number of revolutions. By moving the slide member 92-2 to the lower left via the
2nd, the reflection plate 63 attached to the slide member 92-1 also moves to the lower left along
the guide 81-2, and is outputted from the speaker 61. The voice is moved to a predetermined
position where it is reflected to the back of the unit speaker 51.
[0120]
That is, in the drive unit 91, when the servomotor 93-1 and the servomotor 93-2 rotate a
predetermined number of revolutions, the reflecting plate 63 moves on the guides 81-1 and 81-2
according to the number of revolutions. When the pivoting portion 96 pivots, the reflecting plate
63 pivots in accordance with the pivoted angle.
[0121]
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29
In the example described above, although a method of driving the reflecting plate 63 by an
actuator with a ball screw has been described as a method of driving the reflecting plate 63, the
present invention is not limited thereto, for example, an air cylinder, a hydraulic cylinder, The
reflecting plate 63 may be driven by a predetermined link (for example, pantograph), a rack and
pinion, a belt, or a chain.
[0122]
Next, a scalable television system 101 incorporating a unit speaker 51 will be described as an
example of the unit speaker 51 including the plurality of sets of speakers 61 described with
reference to FIGS. 5 to 8.
[0123]
FIG. 9 is a diagram showing a configuration example according to an embodiment of a scalable
television system 101 to which the present invention is applied.
[0124]
In FIG. 9, for convenience of explanation, the casing of the unit speaker 51 is shown to be
transparent, but in fact, as in FIG. 5, for example, the side surface, the top surface, and the bottom
surface are formed as so-called cabinets. In addition, on the front and back, a saran net is
attached, and the inside of the case can not be seen.
In addition, the same parts as in the case shown in FIG. 5 are denoted by the same reference
numerals, and the description thereof will be omitted (as appropriate).
[0125]
The scalable television system 101 is configured, for example, by connecting a plurality of units
capable of attaching a plurality of display devices to a plurality of different attachment positions,
respectively, to increase or decrease the number of connected units. By doing so, the number of
display devices can be freely increased or decreased.
Also, the scalable television system 101 is an example of the display system of the present
09-05-2019
30
invention.
[0126]
In the example shown in FIG. 9, the scalable television system 101 is composed of three units
102-1 to 102-3.
In each of the units 102-1 to 102-3, display devices such as a plurality of television receivers
(three display devices in this example) are attached in a row in the longitudinal direction in the
figure, and units 102- 1 are attached to the display devices 111A to 111C, the unit 102-2 to the
display devices 112A to 112C, and the unit 102-3 to the display devices 113A to 113C in one
vertical line in the figure.
A scalable television system 101 having nine display devices is configured by connecting the
units 102-1 to 102-3 in a row in the horizontal direction in the drawing.
[0127]
Each of the nine display devices of the display devices 111A to 113C has the same shape and
function, for example, receives a television broadcast signal and the like, and displays an image
on a display unit configured by an LCD (Liquid Crystal Display) or the like. , And outputs sound
from the unit speaker 51 configured to include the speaker 61, the boundary plate 62, the
reflection plate 63, and the like.
[0128]
In the scalable television system 101, not only individual display devices can function
independently, but also a group of nine display devices can be made to function as one display
device.
In the scalable television system 101, it is also possible to divide nine display devices into, for
example, three sets of three display devices and display separate images for each set. is there.
09-05-2019
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[0129]
Specifically, in the case where the scalable television system 101 causes an aggregate of nine
display devices of the display devices 111A to 113C to function as one display device, for
example, the entire display of the display devices 111A to 113C is a television. An image in
which the entire image in the broadcast signal is enlarged is displayed, and audio accompanying
the image is output from each of the speakers 61-L 1 to 61-R 3.
[0130]
In addition, for example, in the case where the nine display devices are divided into units 102-1
to 102-3, which are three sets of three display devices, and functioned for each unit, the unit
speaker 51 The speakers 61-L1 and the speakers 61-R1 among the speakers 61 constituting the
speaker output the sound corresponding to the television broadcast signal displayed by the unit
102-1 including the display devices 111A to 111C, respectively. Each of the L2 and the speaker
61-R2 outputs an audio corresponding to a television broadcast signal displayed by the unit 1022 including the display devices 112A to 112C, and each of the speaker 61-L3 and the speaker
61-R3 is , And a unit 102-3 formed by the display devices 113A to 113C displays the And it
outputs the sound corresponding to the vision broadcast signal.
Furthermore, in the scalable television system 101, it is possible to divide nine display devices
into, for example, three sets of three display devices and display separate images for each set. .
[0131]
In addition, scalable television system 101 is configured such that display devices 111A to 113C
can be rotated by 180 °, respectively, in the direction indicated by arrow 141, from the
direction of the front surface (front surface) of scalable television system 101. Also, in the
direction indicated by the arrow 142, the user can view images and sounds from the direction of
the back surface (back surface) of the scalable television system 101, respectively.
[0132]
FIG. 10 is a diagram showing an example where the display device is rotated in the scalable
television system 101. As shown in FIG.
[0133]
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In the example shown in FIG. 10, among the units 102-1 to 102-3, the unit 102-1 (display
devices 111A to 111C) faces the back, and the other units 102-2 (display devices 112A to 112C)
112C) and unit 102-3 (display devices 113A to 113C) are shown facing forward.
In this case, an image displayed by the unit 102-1 and an image displayed by each of the unit
102-2 and the unit 102-3 can be different images.
In addition, the speakers 61-L 1 that output the sound of the unit 102-1 and the sounds output
by the speakers 61-R 1, and the speakers 61-L 2 to 61 that output the sounds of the unit 102-2
and the unit 102-3, respectively. It can be a voice different from the voice output from each of R3.
[0134]
For example, when the unit 102-1 facing the back is displaying an image of a sports program on
the display devices 111A to 111C, each of the speakers 61-L1 and 61-R1 is an audio
corresponding to the image of the sports program And the units 102-2 and 102-3 facing the
front display the images of the news program on the display devices 112A to 113C, the speakers
61-L2 to 61-R3 respectively receive the news program Output the audio corresponding to the
image of.
[0135]
At this time, each of the reflecting plate 63-L1 and the reflecting plate 63-R1 corresponding to
each of the speaker 61-L1 and the speaker 61-R1 outputting the sound of the sports program on
the back surface reflects the sound on the back surface. Since the sound of the sports program is
output to the back by being arranged at the position of the above, the viewer 71 on the back can
use the speaker 61-L 1 and the speaker 61-R 1 to display the sports program displayed on the
unit 102-1. Can be viewed while listening to the audio output from each of the
In addition, each of reflectors 63-L2 to 61-R3 corresponding to each of the speakers 61-L2 to
61-R3 outputting the sound of the news program on the front is disposed at a predetermined
position for reflecting the sound on the front Because the voice of the news program is output to
the front, the viewer 71 who is on the front can use the speakers 61 -L 2 to 61-to display the
news program displayed on the unit 102-2 and the unit 102-3. It can be viewed while listening to
09-05-2019
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the sound output from each of R3.
[0136]
As described above, since the direction of the sound output from the speaker 61 can be changed
depending on the position where the reflection plate 63 is disposed, the sound can be output also
to the back side of the scalable television system 101.
As a result, the viewer 71 can view the program from both the front and back of the scalable
television system 101.
[0137]
The number of display devices constituting the scalable television system 101 is not limited to
nine.
That is, the scalable television system 101 can be configured by any plurality of display devices.
Further, as shown in FIGS. 9 and 10, the arrangement of the display devices constituting the
scalable television system 101 is not limited to 3 × 3 in height × width.
That is, the arrangement of the display devices constituting the scalable television system 101
can also be, for example, 1 × 2, 2 × 1, 2 × 3, etc. in the vertical × horizontal direction.
Further, as shown in FIGS. 9 and 10, the arrangement shape of the display devices constituting
the scalable television system 101 is not limited to the lattice shape (matrix shape), and is, for
example, a pyramid shape, etc. It is also good.
[0138]
That is, the scalable television system 101 can be configured by arranging an arbitrary plurality
of display devices in an arbitrary number in each of the vertical and horizontal directions.
09-05-2019
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[0139]
FIG. 11 is a block diagram showing an embodiment of a scalable television system 101 to which
the present invention is applied.
[0140]
The antenna 151 receives a television broadcast signal (broadcast signal) corresponding to
broadcast radio waves such as ground waves and radio waves from broadcast satellites, and
supplies the received broadcast signal to the distributor 152.
[0141]
The distributor 152 distributes the broadcast signal supplied from the antenna 151 to each of
the tuners 153-1 to 153-9.
[0142]
Each of the tuners 153-1 to 153-3 is incorporated in, for example, each of the display devices
111 A to 111 C, and for example, demodulation processing, error correction processing, or
decoding processing on the broadcast signal supplied from the distributor 152 And the like, and
supplies a video signal among the signals obtained as a result of the processing to a display unit
(not shown) formed of an LCD or the like of the display devices 111A to 111C, and an audio
signal as a signal. The data is supplied to the processing unit 154-1.
[0143]
Further, each of the tuners 153-4 to 153-6 is, for example, built in each of the display devices
112 A to 112 C, and similar to the tuners 153-1 to 153-3, for the broadcast signal supplied from
the distributor 152. And perform predetermined processing such as demodulation processing,
and among the signals obtained as a result of the processing, video signals are respectively
supplied to the display portions of the display devices 112A to 112C, and audio signals are
supplied to the signal processing unit 154-2. Do.
[0144]
Furthermore, each of the tuners 153-7 to 153-9 is, for example, built in each of the display
devices 113A to 113C, and like the tuners 153-1 to 153-3, for the broadcast signal supplied
from the distributor 152. , And performs predetermined processing such as demodulation
processing, and supplies video signals to the display portions of the display devices 113A to
09-05-2019
35
113C among the signals obtained as a result of the processing, and supplies audio signals to the
signal processing unit 154-3. Do.
[0145]
Note that the display units (not shown) of the display devices 111A to 113C, for example, display
the video signals supplied from the respective tuners 153-1 to 153-9 contained therein on the
screen such as an LCD or the like. Display each one.
[0146]
The signal processing unit 154-1 performs predetermined processing such as volume adjustment
processing, delay processing, or filter processing on the audio signals supplied from each of the
tuners 153-1 to 153-3. The audio signal obtained as a result of the processing is supplied to each
of the speaker 61-L1 and the speaker 61-R1.
[0147]
Here, although the details will be described later, a predetermined process performed by the
signal processing unit 154-1 will be described.
With the volume adjustment process, for example, the volume (sound pressure) of the audio to be
viewed by the viewer 71 may not be constant due to the internal configuration (layout) of the
unit speaker 51, etc. Is a process of adjusting the volume so that the volume of the sound is
constant.
[0148]
In the delay processing, for example, the distance between each of the speakers 61-L 1 to 61-R 3
and the viewer 71 is different, and the phase of the sound reaching the viewer 71 may be shifted.
The audio output from each of -L1 to 61-R3 is corrected to be viewed by the viewer 71 in the
same phase, or the phase of the audio output from each of the speakers 61-L1 to 61-R3 is It is a
process of intentionally shifting at a predetermined interval to make the sound more realistic.
[0149]
Furthermore, with the processing of the filter, for example, the frequency characteristics of the
sound (sound wave) may change depending on the layout of the unit speaker 51, so the sound
09-05-2019
36
(sound wave) output from each of the speakers 61-L1 to 61-R3 Of the speakers 61-L1 to 61-R3
by correcting so that the frequency of the signal is averaged or functioning as an equalizer
including a high-pass filter (high-pass filter) or a low-pass filter (low-pass filter). The sound
quality of the sound (sound wave) output from each of the speakers 61-L 1 to 61-R 3 is changed
by changing the frequency characteristic of the sound (sound wave) output by the speaker.
[0150]
Similar to the signal processing unit 154-1, the signal processing unit 154-2 performs
predetermined processing such as volume adjustment processing on the audio signals supplied
from each of the tuners 153-4 to 153-6. The audio signal obtained as a result of the processing is
supplied to each of the speaker 61-L2 and the speaker 61-R2.
[0151]
Further, the signal processing unit 154-3 performs predetermined processing such as volume
adjustment processing on the audio signal supplied from each of the tuners 153-7 to 153-9,
similarly to the signal processing unit 154-1. And the audio signal obtained as a result of the
processing is supplied to each of the speaker 61-L3 and the speaker 61-R3.
[0152]
Each of the speaker 61-L 1 and the speaker 61-R 1 outputs the audio signal supplied from the
signal processing unit 154-1 as an audio.
[0153]
Further, similarly to the speaker 61-L 1 and the speaker 61-R 1, each of the speaker 61-L 2 and
the speaker 61-R 2 outputs an audio signal supplied from the signal processing unit 154-2 as a
voice, and the speaker 61- Each of L3 and the speaker 61-R3 outputs the audio signal supplied
from the signal processing unit 154-3 as an audio.
[0154]
The input unit 155 includes, for example, a switch or a sensor, and when any of the units 102-1
to 102-3 (display devices 111A to 113C) is rotated, a signal indicating that the display device is
rotated (hereinafter referred to as rotation) Signal) is supplied to the drive control unit 156.
[0155]
Here, although a rotation signal is included, for example, information indicating the position of
09-05-2019
37
the rotated display device (hereinafter referred to as arrangement information) is included, and
the drive control unit 156 described later determines the arrangement information based on the
arrangement information. Each of the driving units 91-L1 to 91-R3 to be driven can be specified.
[0156]
The drive control unit 156 identifies each of the drive units 91-L 1 to 91-R 3 to be driven based
on the arrangement information included in the rotation signal supplied from the input unit 155.
The drive control unit 156 supplies a signal (hereinafter, referred to as a drive signal) for
instructing the drive of the reflecting plate 63 to each of the specified drive units 91-L 1 to 91-R
3 to drive the drive units 91-L 1 to It controls each drive of 91-R3.
[0157]
Each of the drive units 91-L 1 to 91-R 3 corresponds to the drive unit 91 of FIG. 8, and
corresponds to each of the speakers 61-L 1 to 61-R 3 based on the drive signal supplied from the
drive control unit 156. The reflection plates 63-L 1 to 61-R 3 are driven to arrange the reflection
plates 63-L 1 to 61-R 3 at predetermined positions.
[0158]
Further, in the following description, when it is not necessary to individually distinguish each of
the tuners 153-1 to 153-9, it is simply referred to as the tuner 153, and each of the signal
processing units 154-1 to 154-3 is individually referred to. When it is not necessary to
distinguish them, they are simply referred to as a signal processing unit 154, and when it is not
necessary to individually distinguish each of the driving units 91-L1 to 91-R3, they are simply
referred to as a driving unit 91.
[0159]
Next, with reference to the flowchart in FIG. 12, the process of driving the reflecting plate 63 by
the scalable television system 101 will be described.
[0160]
In step S11, the drive control unit 156 determines whether the display device has rotated based
on the rotation signal supplied from the input unit 155.
09-05-2019
38
[0161]
If it is determined in step S11 that the display device is not rotating, the process returns to step
S11, and the above-described process is repeated.
That is, the scalable television system 101 is on standby until the display device is rotated.
[0162]
On the other hand, when it is determined in step S11 that the display device has been rotated,
the process proceeds to step S12, and the drive control unit 156 determines a drive signal based
on the arrangement information included in the rotation signal supplied from the input unit 155.
To the driving unit 91 of FIG.
The drive unit 91 drives the reflection plate 63 based on the drive signal supplied from the drive
control unit 156 to arrange the reflection plate 63 at a predetermined position.
[0163]
For example, in step S12, when the unit 102-1 (display devices 111A to 111C) is rotated
backward, the input unit 155 sends a rotation signal indicating that the unit 102-1 is rotated
backward to the drive control unit 156. Supply.
The drive control unit 156 also generates a drive signal for instructing the drive of the reflecting
plate 63 based on the arrangement information included in the rotation signal indicating that the
unit 102-1 supplied from the input unit 155 has rotated to the back side, Supply to the drive unit
91-L 1 and drive unit 91-R 1 corresponding to the speaker 61-L 1 of L channel (L 1) and the
speaker 61-R 1 of R channel (R 1) that output the sound of unit 102-1 .
[0164]
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39
Then, based on the drive signal supplied from the drive control unit 156, the drive unit 91-L1
drives the reflection plate 63-L1 attached to the drive unit 91-L1 to set the reflection plate 63-L1
of the speaker 61-L1. The output sound is arranged at a predetermined position to be reflected
on the back of the unit speaker 51.
Further, the drive unit 91-R1 drives the reflection plate 63-R1 attached thereto based on the
drive signal supplied from the drive control unit 156, similarly to the drive unit 91-L1, to thereby
reflect the reflection plate 63. -R1 is disposed at a predetermined position where the sound
output from the speaker 61-R1 is reflected to the back of the unit speaker 51.
[0165]
As described above, by changing the direction of the reflecting plate 63 according to the
direction of the display device, sound can be output to both the front surface (front surface) and
the back surface (back surface) of the scalable television system 101. For example, each of the
plurality of viewers 71 can listen to a program on both the front surface (front surface) and the
back surface (back surface), which can increase the degree of freedom of the viewing
environment.
[0166]
Next, processing of audio output by the scalable television system 101 will be described with
reference to the flowchart in FIG.
[0167]
In step S31, the antenna 151 receives a television broadcast signal (broadcast signal)
corresponding to broadcast radio waves such as ground waves and radio waves from broadcast
satellites, and supplies the received broadcast signal to the distributor 152.
[0168]
In step S 32, the distributor 152 distributes the broadcast signal supplied from the antenna 151
to the tuner 153.
[0169]
For example, in step S32, the distributor 152 transmits the broadcast signal supplied from the
09-05-2019
40
antenna 151 to the tuner 153-1 incorporated in the display device 111A, the tuner 153-2
incorporated in the display device 111B, and the display device 111C. Built-in tuner 153-3, tuner
153-4 built-in to display device 112A, tuner 153-5 built-in to display device 112B, tuner 153-6
built-in to display device 112C, built-in to display device 113A The signal is supplied to each of
the tuner 153-7, the tuner 153-8 incorporated in the display device 113B, and the tuner 153-9
incorporated in the display device 113C.
[0170]
In step S33, the tuner 153 performs predetermined processing such as demodulation processing,
error correction processing, or decoding processing on the broadcast signal supplied from the
distributor 152, for example, to obtain a signal obtained as a result of the processing. Among
them, the video signal is supplied to the display unit (not shown) of the display device, and the
audio signal is supplied to the signal processing unit 154.
[0171]
For example, in step S33, when a sports program is selected as a program to be displayed on the
unit 102-1 facing the back by the viewer 71, each of the tuners 153-1 to 153-3 displays A
predetermined process such as demodulation is performed on the supplied broadcast signal, and
the video signal of the sports program among the signals obtained as a result of the process is
displayed on the display unit of each of the display devices 111A to 111C. , And an audio signal
of the sports program is supplied to the signal processing unit 154-1.
[0172]
Also, for example, in step S33, each of the tuners 153-4 to 153-9 is selected by the viewer 71 as
a news program to be displayed on the unit 102-2 and the unit 102-2 facing the front. When the
broadcast signal supplied from the distributor 152 is subjected to predetermined processing
such as demodulation processing, among the signals obtained as a result of the processing, the
video signal of the news program is displayed on the display device 112A. The audio signal of the
news program is supplied to each of the display units (not shown) of 113C, and is supplied to
each of the signal processing unit 154-2 and the signal processing unit 154-3.
[0173]
At this time, the display portions (not shown) of the display devices 111A to 111C face the back
by displaying the video signals of the sports program supplied from the respective tuners 153-1
to 153-3. On the entire display of the display devices 111A to 111C of the unit 102-1, an
09-05-2019
41
enlarged image of the entire image of the sports program is displayed.
In addition, the display units (not shown) of the display devices 112A to 113C face the front by
displaying video signals of news programs supplied from the respective tuners 153-4 to 153-9.
The whole image of the news program is displayed on the entire display of the display devices
112A to 113C of the unit 102-2 and the unit 102-3.
[0174]
In step S34, the signal processing unit 154 applies predetermined processing such as volume
adjustment processing, delay processing, or filter processing to the audio signal supplied from
the tuner 153, and results of the processing The obtained audio signal is supplied to the speaker
61.
[0175]
Here, with reference to FIG. 14, the details of the predetermined process performed by the signal
processing unit 154 will be described.
FIG. 14 is a diagram for explaining the positional relationship between each of the reflection
plates 63-L 1 to 63-R 2 and the viewer 71.
[0176]
The same parts as in the case shown in FIG. 6 are assigned the same reference numerals, and the
description thereof will be omitted (as appropriate).
[0177]
In the example shown in FIG. 14, it is shown that the distance between the viewer 71 and the
center of the unit speaker 51 in the horizontal direction (that is, the shortest distance between
the viewer 71 and the unit speaker 51) is the distance d. Is a circle whose radius is the distance d
(in the drawing, the distance d is expressed shorter than the actual length to make the
explanation easy to understand).
09-05-2019
42
That is, the distance between the position on the circle A and the position of the viewer 71 is
constant at the distance d.
[0178]
The distance between the position of the reflecting plate 63-L2 and the position of the viewer 71
is the distance dL2, and the distance between the position of the reflecting plate 63-L3 and the
position of the viewer 71 is the distance dL3.
That is, the distance between the reflecting plate 63 and the viewer 71 changes as, for example,
the distance dL2, the distance dL3 (distance dL2 <distance dL3), and the like.
Therefore, even in the sound reflected by the reflection plate 63, since the distance to the viewer
71 is different, the sound outputted from each of the speaker 61-L2 and the speaker 61-L3 is
different for each reflection plate 63 reflected, There will be a time lag in reaching the viewer 71.
[0179]
Specifically, the sound reflected by each of the reflecting plate 63-L 2 and the reflecting plate 63L 3 is viewed because the distance dL 2 is longer than the distance d by ΔdL 2 and the distance
dL 3 is longer than the distance d by ΔdL 3. In proportion to the distance to the person 71, for
example, the phase of the sound reflected by the reflecting plate 63-3 is a distance of (ΔdL3ΔdL2) than the phase of the sound reflected by the reflecting plate 63-2 Will be delayed
(delayed).
[0180]
When the signal processing unit 154 performs delay processing as predetermined processing,
for example, the phase of the sound reflected by the reflection plate 63-3 described above is the
phase of the sound reflected by the reflection plate 63-2. On the other hand, correction
processing is performed so as not to shift.
[0181]
Specifically, for example, assuming that the delay time is Δt, the difference in distance between
09-05-2019
43
the viewer 71 and the reflecting plate 63 is Δd, and the speed of sound wave (sound) is v (Δt =
Δd / v). Further, since the value of the sound velocity v is constant (for example, about 331.5 (m
/ s) at 0 ° C.), the delay time Δt can be calculated from the distance difference Δd.
[0182]
That is, the signal processing unit 154 calculates the delay time Δt from the distance difference
Δd, and the tuner 153 is arranged such that the phase of the sound output from the speaker 61
is shifted (delayed) according to the calculated delay time Δt. The audio signal supplied from the
above is subjected to predetermined processing, and the audio signal obtained as a result of the
processing is supplied to the speaker 61.
[0183]
In the example described above, among the speakers 61 disposed in the unit speaker 51, the
speaker 61-L2 and the speaker 61-L3 corresponding to the reflector 63 facing the front of the
left channel have been described. The same applies to each of the speakers 61 corresponding to
the reflection plate 63 facing the back, or the speakers 61 -R 1 to 61 -R 3 of the right channel,
and the description thereof is omitted.
[0184]
Returning to the flowchart of FIG. 13, for example, in step S34, the signal processing unit 154-1
applies a reflection plate 63-to the audio signal of the sports program supplied from each of the
tuners 153-1 to 153-3. The audio signal is supplied to each of the speakers 61-L 1 and 61-R 1
without performing delay processing since only one set of L 1 and the reflecting plate 63-R 1
faces the back.
[0185]
Further, for example, in step S34, the signal processing unit 154-2 applies the speaker 61-L2 and
the speaker 61-R2 to the audio signal of the news program supplied from each of the tuners
153-4 to 153-6. The processing of delay is executed so that the phase of the sound output from
each of them is shifted (delayed) by ((.DELTA.dL3-.DELTA.dL2) / v), and the sound signal
obtained as a result of the processing is Supply to each of -R2.
[0186]
Furthermore, for example, in step S34, the signal processing unit 154-3 does not execute delay
processing on the audio signal of the news program supplied from each of the tuners 153-7 to
153-9. The audio signal is supplied to each of the speakers 61-L3 and 61-R3.
09-05-2019
44
[0187]
In the case of this example, the signal processing unit 154-3 does not execute the delay
processing because the delay time Δt is corrected based on ΔdL3. Therefore, the sound output
from each of the speaker 61-L3 and the speaker 61-R3 Therefore, the signal processing unit
154-3 supplies an audio signal to each of the speaker 61-L3 and the speaker 61-R3 without
performing delay processing.
[0188]
Further, in the above-described example, the delay time Δt is corrected on the basis of ΔdL3.
However, the present invention is not limited thereto, as long as the method can correct the delay
time Δt.
[0189]
In step S35, the speaker 61 outputs the sound signal supplied from the signal processing unit
154 as sound, and the process ends.
[0190]
For example, in step S35, each of the speaker 61-L1 and the speaker 61-R1 outputs an audio
signal of a sports program supplied from the signal processing unit 154-1 as an audio.
[0191]
Also, for example, in step S35, each of the speaker 61-L2 and the speaker 61-R2 is supplied from
the signal processing unit 154-2, and is an audio of a news program delayed by ((ΔdL3-ΔdL2) /
v) Output the signal as voice.
[0192]
Furthermore, for example, in step S35, each of the speaker 61-L3 and the speaker 61-R3 outputs
the audio signal of the news program supplied from the signal processing unit 154-3 as an audio.
[0193]
That is, in the scalable television system 101, each of the reflectors 63-L1 and the reflectors 63R1 corresponding to each of the speaker 61-L1 and the speaker 61-R1 outputting the sound of
09-05-2019
45
the sports program on the back is arranged on the back. Since the sound of the sports program is
output in the direction of the back by being disposed at a predetermined position where the
sound is reflected, the viewer 71 who is on the back side is a speaker of the sports program
displayed on the unit 102-1. It can be viewed while listening to the sound of the sports program
output from each of the 61-L1 and the speaker 61-R1.
[0194]
In the scalable television system 101, each of the reflectors 63-L2 to 61-R3 corresponding to
each of the speakers 61-L2 to 61-R3 outputting the sound of the news program on the front
reflects the sound on the front Since the sound of the news program is output in the direction of
the front by being arranged at the predetermined position, the viewer 71 who is on the front side
is the news program displayed on the unit 102-2 and the unit 102-3. Can be viewed while
listening to the sound of the news program output from each of the speakers 61-L2 to 61-R3.
[0195]
Furthermore, since the phase of the sound of the news program output from the speaker 61-L2
and the speaker 61-R2 is shifted by (ΔdL3-ΔdL2) / v) and reaches the viewer 71, it is on the
front side of the scalable television system 101. The viewer 71 can view the phase of the sound
of the news program output from each of the speakers 61-L2 to 61-R3 with the same phase.
[0196]
Moreover, although it is a process of step S35 by the speaker 61, an audio ¦ voice can be output
by various methods besides having mentioned above.
Therefore, hereinafter, with reference to FIG. 15 to FIG. 17, the sound output from the unit
speaker 51 configured by the plurality of sets of speakers 61 will be described.
[0197]
First, the relationship between the L channel and the R channel of the unit speaker 51 will be
described with reference to FIG.
[0198]
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46
In the example shown in FIG. 15, it is shown that L1 of the L channels is composed of the
speaker 61-L1 and the reflecting plate 63-L1 etc. and outputs the sound of the L1 channel, and
L2 is the speaker 61-L2 and the reflection. It is composed of a plate 63-L 2 and the like, and
indicates that the sound of the L 2 channel is to be output, and L 3 is composed of the speaker
61-L 3 and the reflecting plate 63-L 3 and the like to indicate that the voice of the L 3 channel is
to be output.
In addition, among R channels, it shows that R1 consists of the speaker 61-R1 and the reflector
63-R1 etc, and outputs the sound of the R1 channel, R2 from the speaker 61-R2 and the reflector
63-R2 etc This indicates that the sound output of the R2 channel is performed, and R3 includes
the speaker 61-R3 and the reflecting plate 63-R3 and the like, and indicates that the sound of the
R3 channel is output.
The same applies to FIGS. 16 and 17 described later.
[0199]
In the unit speaker 51 shown in FIG. 15, the L axis L1 and the R channel R1 are paired with the
central axis a symmetrical, and the L channel L2 and the R channel R2 are paired. The L channel
L3 and the R channel R3 are paired.
[0200]
For example, each of the signal processing units 154-1 to 154-3 supplies an audio signal to each
of the speakers 61-L1 to 61-R3, so that each of L1 to R3 outputs an audio, and the viewer 71 In
addition, let's watch the sound with wide left and right.
[0201]
Next, with reference to FIG. 16, the output of the sound by the single speaker 61 of the unit
speaker 51 will be described.
[0202]
In FIG. 16A, only L3 and R3 are hatched, but this is because audio is output from each of the
speakers 61-L3 of L3 and the speakers 61-R3 of R3 among the speakers 61 of the unit speaker
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47
51, Each of the speakers 61 -L 1 to 61 -R 2 indicates that no sound is output.
For example, when displaying an image only on the display devices 113A to 113C of the unit
102-3, the signal processing unit 154-3 supplies an audio signal to each of the speaker 61-L3
and the speaker 61-R3 so that the speaker 61 can be used. -Each of L3 and speaker 61-R3
outputs an audio ¦ voice, and makes the viewer 71 view the audio ¦ voice with the breadth of
right and left.
[0203]
In FIG. 16B, only L2 and R2 are hatched, but this is because the audio is output from each of the
speakers 61-L2 of L2 and the speakers 61-R2 of R2 among the speakers 61 of the unit speaker
51, Each of the speaker 61-L 1, the speaker 61-R 1, the speaker 61-L 3, and the speaker 61-R 3
other than the above indicates that sound is not output.
For example, in the case where an image is displayed only on the display devices 112A to 112C
of the unit 102-2, the signal processing unit 154-2 supplies an audio signal to each of the
speaker 61-L2 and the speaker 61-R2 so that the speaker 61 can be used. -Each of L2 and
speaker 61-R2 outputs an audio ¦ voice, and makes the viewer 71 view the audio ¦ voice with the
breadth of right and left.
In FIG. 16C, only L1 and R1 are hatched, but this is because the sound is output from each of the
speaker 61-L1 of the L1 and the speaker 61-R1 of the R1 among the speakers 61 of the unit
speaker 51. Each of the speakers 61 -L 2 to 61 -R 3 indicates that no sound is output.
For example, in the case where an image is displayed only on the display devices 111A to 111C
of the unit 102-1, the signal processing unit 154-1 supplies an audio signal to each of the
speaker 61-L1 and the speaker 61-R1 so that the speaker 61 can be used. -Each of L1 and
speaker 61-R1 outputs an audio ¦ voice, and makes the viewer 71 view the audio ¦ voice with the
breadth of right and left.
[0204]
As described above, since each of the speakers 61-L 1 to 61-R 3 of the unit speaker 51 can
output audio alone, for example, an image to be displayed on each of the display devices 111 A
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48
to 113 C in the scalable television system 101 It becomes possible to use according to various
applications, such as changing the speaker 61 which outputs an audio ¦ voice by this.
[0205]
Next, with reference to FIG. 17, output of various sounds by the speaker 61 of the unit speaker
51 will be described.
[0206]
In the example shown in FIG. 17, it is shown that L1 and R1, L2 and R2, and L3 and R3, which
are paired, output similar voices, respectively.
[0207]
For example, as described above, when the delay processing is performed, the signal processing
unit 154-1 outputs the phase of the sound output from each of the speaker 61-L1 of L1 and the
speaker 61-R1 of R1, and the speaker 61-L3. It processes so that the phase of the sound which
each of L3 and R3 speaker 61-R3 outputs corresponds, and each of the speaker 61-L2 of L2 and
the speaker 61-R2 of R2 outputs It processes so that the phase of the voice to be output and the
phase of the voice output from each of the speakers 61-L 3 of L 3 and the speakers 61-R 3 of R 3
coincide with each other.
As a result, the viewer 71 can view the sound output from each of the speakers 61-L1 to 61-R3
(L1 to R3) in the same phase, and the speakers 61-L1 to 61-R3 (L1 to R3) The audio output by
each of the) will be changing for each channel in the pair.
[0208]
Also, other than that, the signal processing unit 154 performs predetermined processing such as
volume adjustment processing or filter processing described above on the audio signal, for
example, and the audio signal subjected to the predetermined processing is used as a speaker By
supplying to 61, it is possible to change the sound to be output for each pair of channels.
Furthermore, even if L1 and R1 are paired channels, for example, the voices outputted by L1 and
09-05-2019
49
R1 are changed by changing the frequency of the voice outputted from each of them, thereby
changing the voices outputted from each. It can also be done.
[0209]
As described above, for example, a sound whose phase, sound pressure, frequency, or the like is
changed can be output for each channel, so that a more realistic sound or higher sound quality
can be provided to the viewer 71. It can provide sound.
[0210]
By the way, although the scalable television system 101 incorporating the unit speaker 51 has
been described in the above-described example, the present invention is not limited thereto, and
can be applied to various devices that output sound.
Therefore, an audio system 201 incorporating a unit speaker 51 will be described below as
another configuration of the embodiment of the present invention.
[0211]
FIG. 18 is a block diagram showing an embodiment of an audio system 201 to which the present
invention is applied.
[0212]
The same parts as in the case shown in FIG. 11 are denoted by the same reference numerals, and
the description thereof will be (appropriately) omitted.
[0213]
The audio system 201 includes speakers 61-L 1 to 61-R 3, drive units 91-L 1 to 91-R 3, an input
unit 155, a drive control unit 156, a music player 211, a distributor 212, and signal processing
units 213-1 to 213. Configured to include -3.
[0214]
For example, the music player 211 mounts a medium such as a CD (Compact Disc), an MD
(MiniDisc (trademark)), or a memory card, and reproduces an audio signal recorded in the
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50
medium, or an HDD (Hard Disk) Drive) and the like, and supplies the reproduced audio signal to
the distributor 212.
[0215]
The distributor 212 distributes the audio signal supplied from the music player 211 to each of
the signal processing units 213-1 to 213-3.
[0216]
The signal processing unit 213-1 performs predetermined processing such as volume adjustment
processing, delay processing, or filter processing on the audio signal supplied from the
distributor 212, and obtains the processing result. The voice signal thus supplied is supplied to
each of the speaker 61-L1 and the speaker 61-R1.
[0217]
Further, the signal processing unit 213-2 performs, for example, predetermined processing such
as volume adjustment processing on the audio signal supplied from the distributor 212, similarly
to the signal processing unit 213-1. The audio signal obtained as a result of the above is supplied
to each of the speaker 61-L2 and the speaker 61-R2.
[0218]
Further, the signal processing unit 213-3 performs, for example, predetermined processing such
as volume adjustment processing on the audio signal supplied from the distributor 212 in the
same manner as the signal processing unit 213-1. The audio signal obtained as a result of the
above is supplied to each of the speaker 61-L3 and the speaker 61-R3.
[0219]
Thus, the present invention can also be applied to an audio system 201 that outputs sound.
[0220]
Also, the scalable television system 101 and the audio system 201 described above may be
combined, and audio may be output from the audio system 201 to an image displayed on the
scalable television system 101.
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51
Specifically, in response to an image displayed by the scalable television system 101, the audio
reproduced by the music player 211 can be output from the unit speaker 51 without outputting
the audio of the image. .
[0221]
As described above, according to the present invention, sound can be output from both of the
front surface (front surface) or the back surface (back surface) from the plurality of speakers 61
disposed in the unit speaker 51.
In addition, the unit speaker 51 can provide the viewer 71 with a realistic sound by the signal
processing unit 154 performing predetermined processing on the audio signal.
[0222]
In the unit speaker 51, the left and right three sets (six) of the speakers 61 have been described
as an example, but the present invention is not limited thereto. For example, according to the
nine display devices of the scalable television system 101, the left and right Nine sets (18 pieces)
of speakers 61 may be arranged.
In that case, the reflecting plate 63 is also disposed at a predetermined position corresponding to
the speakers 61.
That is, the unit speaker 51 can be configured by arranging an arbitrary plurality of speakers 61
and a reflection plate 63 corresponding to the speakers 61.
[0223]
Further, in the present specification, the step of describing the program stored in the recording
medium may be parallel or not only processing performed chronologically in the order described,
but not necessarily chronologically processing. It also includes processing to be executed
individually.
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[0224]
Furthermore, in the present specification, the system represents the entire apparatus configured
by a plurality of apparatuses.
[0225]
It is a figure which shows the external appearance of the conventional unit speaker.
It is a figure which shows the external appearance of a speaker.
It is a figure which shows the example of the external appearance of the unit speaker to which
this invention is applied.
It is a figure explaining reflection of the sound wave (voice) by a reflective board.
It is a figure which shows the example of the external appearance of the unit speaker to which
this invention is comprised which consists of several sets of speakers.
It is a figure explaining reflection of the sound wave (voice) by a plurality of sets of reflective
plates.
An example of the operation in the case of changing the direction of the reflector will be
described.
It is a top view which shows the structure of the drive part to which a reflecting plate is moved or
rotated.
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram showing a configuration example
according to an embodiment of a scalable television system to which the present invention is
applied.
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FIG. 17 is a diagram showing an example of rotating a display device in a scalable television
system.
FIG. 1 is a block diagram showing an embodiment of a scalable television system to which the
present invention is applied.
It is a flowchart explaining the process of a drive of a reflecting plate by a scalable television
system.
It is a flowchart explaining the process of an audio ¦ voice output by a scalable television system.
It is a figure explaining the positional relationship of each of a reflecting plate and a viewer.
It is a figure explaining the relationship between L channel and R channel of a unit speaker.
It is a figure explaining the output of the sound by the speaker single-piece ¦ unit of a unit
speaker.
It is a figure explaining the output of the various audio ¦ voices by the speaker of a unit speaker.
It is a figure showing an example of composition concerning an embodiment of an audio system
to which the present invention is applied.
Explanation of sign
[0226]
51 unit speaker, 61-L1 to 61-R3 and 61 speaker, 62-L1 to 62-R3 and 62 boundary plate, 63-L1
to 63-R3 and 63 reflecting plate, 91-L1 to 91-R3 and 91 drive unit , 101 scalable television
systems, 102-1 to 102-3 units, 111A to 113C displays, 151 antennas, 152 distributors, 153-1 to
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153-9 and 153 tuners, 154-1 to 154-3 and 154 signal processing Unit, 155 input unit, 156 drive
control unit, 201 audio system, 211 music player, 212 distributor, 213-1 to 213-3 and 213
signal processing unit
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