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JP2006262418

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DESCRIPTION JP2006262418
PROBLEM TO BE SOLVED: To be able to listen to music etc. by improving usability by switching
an output of each speaker to a bone conduction or air conduction speaker according to the use
condition by providing an air conduction speaker in addition to a bone conduction speaker
device To provide a bone conduction speaker device. SOLUTION: In a bone conduction speaker
device 1 in which a bone conduction speaker 3 for outputting as a voice vibration based on a
signal inputted from a voice input means 11 to a control circuit 9 is arranged on the surface of
an elastic cushion 4 An air conduction speaker 8 is additionally provided on the surface of the
speaker device. [Selected figure] Figure 3
Bone conduction speaker device
[0001]
The present invention relates to a bone conduction speaker device capable of listening to music
and the like by bone conduction, and more particularly to a bone conduction speaker device
provided with an air conduction speaker.
[0002]
Conventionally, as a means of listening to music with a TV, radio sound or CD while sleeping, for
example, there is one that incorporates a speaker in a pillow body, and the user uses a speaker
attached to the back of the surface covering material. An application has been disclosed that is
configured to allow voice to be heard at the ear via a mesh sheet of a pillow.
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(See Patent Document 1) On the other hand, various patent applications relating to headphones
using bone conduction are also disclosed (see, for example, Patent Document 2).
[0003]
And recently, as shown in FIG. 8, a product which can incorporate the bone conduction speaker
(53) into the buffer material (54) receiving the head (56) and listen to music while sleeping as a
pillow (52) It has been The structure is such that a skin layer is integrally provided on the surface
of an open-cell foam such as urethane foam to form a pillow-shaped cushioning material (54),
and the upper surface of this cushioning material (54) Two bone conduction speakers (53) are
embedded at narrow intervals so as to be in contact with each other, and the user can listen to
music and the like by bone conduction by putting the head (56) on. JP 2002-125825 JP JP
2003-32768 JP
[0004]
However, with regard to the various configurations described above, due to the nature as a bone
conduction speaker, when the head is lifted from the pillow or the headphone receiver section is
removed, voice recognition can not be performed temporarily. For example, in the case of getting
up from the pillow and operating the connected sound source, there is the inconvenience that it
is not possible to confirm the operation result unless the head is put on the pillow again, and if it
gets up temporarily during use. However, there is a drawback in that it misses listening to music
and so on because the speech recognition is lost. And, because it is bone conduction, of course
the voice can only be heard by the person himself and can not be heard by the surrounding
people.
[0005]
The present invention has been made focusing on the above circumstances, and by connecting an
air conduction speaker to a bone conduction speaker device, the user can switch the output of
each speaker to a bone conduction or air conduction speaker according to the usage condition.
The present invention provides a bone conduction speaker device that makes it possible to listen
to music etc.
[0006]
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2
In order to solve the above problems, a bone conduction speaker device according to the present
invention is a bone conduction speaker device in which a bone conduction speaker for outputting
as voice vibration based on a signal input from a voice input unit to a control circuit is disposed
on the surface of an elastic cushion. An air conduction speaker is provided on the surface of the
speaker device separated from the bone conduction speaker.
[0007]
According to the present invention, it is possible to output from the bone conduction speaker and
/ or the air conduction speaker according to the usage condition such as the listener's use
condition and consideration to the surroundings, and the bone conduction is improved in
usability. A speaker device can be obtained.
[0008]
Hereinafter, an embodiment of the present invention will be described based on the drawings.
A pillow (2) incorporating a bone conduction speaker device (1) whose perspective view is shown
in FIG. 1 and a longitudinal sectional view is shown in FIG. 2 is an elastic cushion (4) having a
bone conduction speaker (3) disposed on the upper surface; It comprises a cover (5) etc. covering
these and constitutes an audio receiving apparatus.
The bone conduction speaker (3) directly transmits the sound from the sound source to the
listener's head (6) as sound vibration so that even a person who is deaf can hear it by bone
conduction, and the user The number of speakers (3) is at least 2 or more at predetermined
intervals along the longitudinal direction of the approximately central recess on the upper
surface of the elastic cushion body (4) so that at least one of them abuts the head when lying
down It is arranged.
[0009]
In addition, cases (7) and (7 ') are disposed on the left and right of the upper surface of the
elastic cushion body (4), and an air-conduction speaker (8) for emitting sound in the air in the
cases (7) and (7'). (8) and the drive circuit of the speaker control unit (9) (9) are disposed, and
the side surface of one case (7) has an operation unit (10) for turning on and off the power and
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an audio input unit (11 ) Has been installed.
The side of the other case (7 ') is provided with a changeover switch (12) for switching the
output to the bone conduction speaker (3) and the air conduction speaker (8).
[0010]
FIG. 3 is a block diagram showing a transmitting / receiving device of the bone conduction
speaker device (1), wherein an audio signal from a sound source (13) (13 ') such as a television
or a CD radio cassette is inputted to an input unit (11) The bone conduction speakers (3) and (3)
and the air conduction speakers (8) and (8) are driven by the drive circuit of the speaker control
unit (9).
[0011]
The outputs of the bone conduction speaker (3) and the air conduction speaker (8) are switched
by the connection operation by sliding the changeover switch (12) in the direction of the arrow
in the figure, and only to the bone conduction speaker (3) (3) In mode (A) that performs output
operation, and in output mode (B) for air conduction speakers (8) and (8) only, and further in
mode (C) for outputting to bone conduction and both speakers (3) and (8) It is configured to be
able to switch and use it.
[0012]
With the above configuration, the listener places the head (6) on the pillow (2) containing the
bone conduction speaker device (1), for example, as shown in FIG. The sound input from) is
transmitted to the speaker control unit (9) and transmitted to the head (6) as the sound vibration
from the bone conduction speaker (3), and the hearing impaired person is not to mention the
sound of the normal person And can listen to music.
[0013]
Therefore, at the time of use in cases where sound leakage to the surroundings such as use
before bedtime should be taken into consideration, the bone conduction speaker (3) is used only
in the mode (A) to operate, and it is not alone If you want to listen with other listeners, operate
the mode (B) with air conduction speaker (8) only, and if you want other people to listen and the
user listens to bone conduction, If both the bone conduction speaker (3) and the air conduction
speaker (8) are operated (C), a plurality of persons including the deaf person can share the same
voice atmosphere at the same time. Thus, various modes can be easily switched and selected.
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[0014]
In addition, when operating the sound source (13) such as tuning of the radio in the case of (A)
mode in which only the bone conduction speaker (3) is operated to listen to music when using
the bedtime, etc., temporarily By switching to the (B) or (C) mode, the operation can be
performed while monitoring the sound from the air conduction speaker (8).
In addition, when operating by the wireless system by an electromagnetic wave, infrared LED,
etc., it can usually use as said (B) mode as a wireless speaker.
[0015]
Next, another embodiment of the present invention will be described.
A pillow (22) incorporating the bone conduction speaker device (21) shown in FIG. 4 in which
the same reference numerals as in FIG. 1 are attached with the same reference numerals as in the
previous embodiment, together with the bone conduction speaker (3) Drive circuits for the air
conduction speakers (8) and (8) and the speaker control units (9) and (9) are disposed on the left
and right of the upper surface of the body (4), and bone conduction speakers (3) and (3) In the
vicinity of, a detection switch (15) is installed which is energized by detecting the load when the
head (6) is placed on the elastic cushion body (4).
[0016]
Then, as shown in the block diagram of FIG. 5, when the head is placed on the pillow (21), the
detection switch (15) detects this and causes the changeover switch (12) to switch as shown by
the solid line. When the bone conduction speaker (3) is driven by the drive circuit of the control
unit (9), the user can listen to the sound without worrying about the sound leakage to the
surroundings.
[0017]
When the detection switch (15) does not detect a load, for example, when the head is not placed
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on the elastic cushion (4) or when the head is separated from the pillow (22), the changeover
switch (12) is switched to a dotted line , Driving the air conduction speaker (8).
Therefore, when getting up for tuning operation of the radio, etc., the speaker output is
automatically switched and the sound is generated from the air conduction speaker (8), so the
sound being heard by the bone conduction speaker (3) is interrupted It is possible to eliminate
the problem of causing the problem and to listen to the voice continuously.
[0018]
FIG. 6 shows an arrangement in which the bone conduction speaker device (31) in the above
embodiment is disposed in a headphone (32), which is located on the inner surface side of the
elastic cushion portion (34) forming the receiver portion. The bone conduction speakers (3) and
(3) are disposed, and the air conduction speakers (8) and (8) are disposed on the facing outer
surface side.
Then, below the inner surface close to the bone conduction speaker (3), a detection switch (15) is
disposed which is biased to detect contact with the head surface when the headphone (32) is
worn. When the user wears the headphones (32), the detection switch (15) can detect music etc.
from the bone conduction speaker (31).
[0019]
Also, remove the headphones (32) from the head, and store the headphones (32) in the storage
case (35) as shown in FIG. 7 with the air conduction speaker (8) portion of the receiver facing
upward. Thus, the detection switch (15) is de-energized to generate sound from the speakers (8)
and (8) by air conduction, and the headphone (32) can be used as a normal air conduction
speaker.
[0020]
INDUSTRIAL APPLICABILITY The present invention can be used as a bone conduction speaker
device that can hear not only bone conduction speakers but also sound from air conduction
speakers.
[0021]
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It is a perspective view of a bone conduction speaker built-in pillow which shows one
embodiment of the present invention.
It is a longitudinal cross-sectional view of the pillow of FIG.
It is a block diagram which shows the transmitter-receiver of the bone conduction speaker
apparatus of FIG.
It is a perspective view of the bone conduction speaker built-in pillow which shows the other
Example of this invention. It is a block diagram which shows the receiver of the bone conduction
speaker apparatus of FIG. It is sectional drawing of the bone conduction speaker apparatus which
shows the example which employ ¦ adopted this invention to the headphone. It is a perspective
view which shows the air conduction speaker use condition of a headphone in FIG. It is sectional
drawing which shows the structure of the conventional bone conduction speaker built-in pillow.
Explanation of sign
[0022]
DESCRIPTION OF SYMBOLS 1, 21, 31 bone conduction speaker apparatus 2, 22 pillow 3 bone
conduction speaker 4, 34 elastic cushion 5 cover 6 head 7 case 8 air conduction speaker 9
speaker control part 10 operation part 11 voice input part 12 changeover switch 13 sound
source 15 Detection switch 32 Headphones 35 Storage case
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