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JPS55114909

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DESCRIPTION JPS55114909
Description 1, title of the invention
Position storage display
3. Detailed Description of the Invention The present invention relates to a position storage and
display device for storing and displaying the position of an operator (fader) for adjusting a sound
field of a microphone / mixer, for example. In general, the above-mentioned microphones and
mixers combine the input signals from a plurality of microphones classified into various musical
instruments, and combine them to assign the name of the audio to the output of two or more
systems. In a mixer having such a function, the output signal level from each microphone can be
synthesized in a single-solidified shape and river, for example, as shown in FIG. In the illustrated
example of the microphone-mixer 1-to which a number of slide-type volume controls, adjustment
faders 2 to 6 or 6 provided, each fader 2 to 5 has each input level The master fader 6 placed at
the position of the cloth portion is arranged to strike the entire input level. By the way, in the
case of picking up music, for example, in the case of Stanoo, it is often the case that each fader,
an optimal device (a type of musical piece or a musical instrument, and a director's choice). In all
cases 1.t, then f i 0 determined, but the ffl f of each fader should generally be fixed at its
determined position. When rehearsing different performances of the first-year-old tune (when
you try to collect them in the rehearsal, you will play the next performance, if it is one
performance or the end, the next performance starts EndPage In many cases, it is necessary to
reset each fader to the position of each fader determined at the time of 1. In such a case, in order
to reset each fader to the position of each fader which has been determined to a predetermined
position in advance, it is always necessary to record the position by a facing method.
Conventionally, the following method has been adopted as a method of recording the position of
each fader in view of such necessity. For example, as shown in FIG. 1, the scales 2a to 6a are
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attached to the upper surface portions of the microphones and mixers of the respective faders 2
to 6, and the values of the scales 2a to 6a corresponding to the positions of the faders 2 to 6 are
obtained. For example, a method of recording on a note, etc. ■ place a semi-fixed (can move
freely) mark piece (hereinafter referred to as a cursor) 2b to 6b at the top position of the
microphone mixer sideward of each fader 2 to 6 In addition, a method of setting at a position
corresponding to the position of each fader 2 to 6 set at a predetermined position, and-further, a
method of marking an adhesive tape or pen, etc. on the surface of each fader 2 Was taken.
However, according to the method of writing down the value of the scale of the above and the
method of storing the position of each fader by the method of marking with the ben of etc., the
value of the scale each time the position of each fader is changed In the past, it was very
bothersome, and the microphone / mixer top surface was dirty, and it was inconvenient. In this
respect, according to the method of storing the position of each fader using the cursor of ■,
although it is relieved from the inconvenience and inconvenience as described above, the cursor
is still set for each fader. It is inconvenient. Further, according to this method, since the cursor is
arranged for each fader, the position of each fader can be stored only once (-). 1) Because the
cursor is arranged in a state of projecting on the top of the microphone / mixer, after setting the
cursor to the position corresponding to the position of each fader, it may be possible to move the
cursor by misfire was there. In addition, when performing full-scale mixing with record making,
functions and devices that use a computer to store the positions of all faders according to time
and move all faders to their original positions automatically There are also cases where a mixer
equipped with is used, but such full scale mixers are very expensive and not suitable for general
use. Therefore, there has been a demand from the general user for the appearance of a
microphone / mixer that is inexpensive and does not have the above-mentioned drawbacks. On
the other hand, in the conventional microphone 1 mixer, the positions of knobs other than faders,
such as the knobs 7 to 10 for input level switching as shown in FIG. 1 and the pan pot knob 12
are stored and displayed. It was necessary to adjust various knobs so as to indicate the optimal
position each time a sound was collected, such as music, because such a device was not built in 0.
Therefore, such a knob It is hoped that the appearance of microphones and mixers that can
record a kind of (5) position. The present invention seeks to provide a position memory display
capable of eliminating the disadvantages of the prior art and solving the problems demanded by
the user. Hereinafter, embodiments of the present invention will be described with reference to
the drawings. The following description is an example of the case where the present invention is
applied to a microphone mixer. Fig. 2 (d plane view showing a microphone and mixer to which
the present invention is applied, Fig. 3 is a partially broken view of a signal detection unit having
an operation a) Fig. 4 shows the present invention Is a block diagram showing a circuit etc. used
for the block.
As shown in FIG. 2, on the microphone / mixer 13, a plurality of slide-type operators (hereinafter
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referred to as "faders") 14 to 18 or a large number of juxtaposed ones 1j are disposed for
adjusting the sound volume. At positions near 18, the display elements 19 and 6 (6) EndPage: 2
gates 34 of the number of sides (16 in the case of j 1 j shown in the figure) are used at the
positions of the above-mentioned faders 14 to 18. It is arranged corresponding. The plurality of
display elements 19 to 34 divide the current position or the previously stored position of each of
the faders 14 to 18 into 16 stages and turn on and display them. 36 are provided, and each of
these sliders 35.36... Is shown in FIG. 4 in the form of two strip-like resistors 37.38. -It can slide
on the top. Of the two resistors 3γ, 38,..., The shorter resistor 3γ is used as a volume
adjustment resistor, but the longer resistor 38 is each of the 7 aders 14 described above. The DC
voltage sources 40 are connected to both ends of the DC voltage source 40 as shown in FIG. 4,
and the sliders 36 function as variable output terminals. Between each of the faders 14 to 18 and
each of the display elements 19 to 34, as shown in block in FIG. 4, a first multiplexer 41, an
analog-to-digital conversion logic as a digital signal generating means 46, and The first drive
means 63a to 63e consisting of the switching elements 47 to 62 are disposed respectively. The
first multiplexer 41 selects one of the DC voltages detected by the sliders 36... Of the faders 14 to
18 and supplies the same to the AD converter 42. The respective DC voltages selectively selected
by the respective sliders 36... Are inputted to the AD converter 42 (by the input selector switch
switched at a high speed of every several 7 m cans). The AD converter 42 is a digital signal
generating means for converting each DC voltage as an analog voltage input from the first
multiplexer 41 into a digital signal that can be encoded into a binary code. From the output
terminal of the AD converter 42, digital signals corresponding to the positions of the faders 14 to
18 are output. The code converter 43 can change both the position of each fader 14 to 18 and
each DC voltage value detected by the sliders 36 ... of each fader 14 to 18 in linear proportional
relation. The device is a device for converting the output code of the digital signal from the AD
converter 42 into an ideal code.
Therefore, from the output terminal of this code converter 43, a digital signal of an ideal
predetermined code having a linear correspondence with the position of each fader 14 to 18 is
outputted. The memory circuit 44 is a circuit for storing the digital signal input from the code
converter 43, and is a memory element for storing the digital signal (amount of digital
information) from the code converter 43, an address selection circuit, and a writing read Each
has a circuit. Incidentally, in order to write (store) or read out the digital signal input from the
code converter 43 to the storage circuit 44, the writing button (9) tongue (laying button) 64
shown in FIG. Performed by the oppression of the Hotan 65. Next, the decoder 45 is a circuit for
decoding the binary code from the memory circuit 44 or the code converter 43 and converting it
into a decimal code. Incidentally, between the court converter 43 and the memory circuit 44 and
between the memory circuit 44 and the decoder 45, a mode switching switch 67.68 is selected
which is switched by the smoke switching button 66 shown in FIG. --Are placed. This moat
changeover switch 67. 68 is normally connected to the coat converter 43 and the decoder 45 at
all times, or connected to the valley terminals 70 and 71 on the side of the new line 69, or the
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write / 64 or read button When 65 is pressed, it is automatically connected to each terminal 44a,
44b of the memory circuit 4.4 till. On the contrary to the first multiplexer 41, the second
multiplexer 46 selects one of the digital signals output from the decoder 45 in a time-division
manner, and supplies the selected one to the output means 63a to 63e sequentially. (10)
EndPage: This is an input switching circuit for supplying three. The driving means 63a to 63e are
driven by digital signals from the AD converter 43 through the decoder 45 and the like, and a
plurality of (16 pieces corresponding to the display elements 19 to 34) switching elements 47 to
62 are provided. It consists of Each of the switching powers 47 to 62 is a display means for
selectively displaying the position of each of the faders 14 to 18 by dividing the position of each
of the faders 14 to 18 by selectively performing ON-OFF control of the switch 34 on each display
element 19 The operation and operation of the present invention having the above configuration
will now be described. First, the case where the current position of each fader 14 to 18 is
displayed will be described. First, each fader 14-18 is set to the optimum volume position as
shown in FIG.
Then, a predetermined amount of DC voltage corresponding to the position of each fader 14 to
18 is sequentially input from the first multiplexer 41 to the AD converter 42 in a time-division
manner, and converted to a digital signal corresponding to this person (11) Ru. In this
embodiment, the entire sliding range of each fader 14 to 18 is divided into 15 equal parts so that
the position of each fader 14 to 18 can be expressed as the position of "16" from the position of
"1" for convenience. However, the voltage obtained by the sliders 36... Of the faders 14 and 18
sliding on the resistors 38... Mentioned above and the respective faders 14 to 18 have a linear
correspondence relationship. For example, it may be output from the AD converter 42 as a small
4-bit binary code in Table 1 (5) below. Therefore, in this embodiment, the digital signal of the
binary code input from the AD converter 42 has a linear correspondence with the positions
(positions 1 to 16 ) of the faders 14 to 18 below. Since the code converter 43 corrects
the binary code digital signal as shown in Table 1 CB), this code converter 43 outputs an ideal
binary code digital signal. . (12) Table 1 (A) Table 1 (B) (13) The digital signal of the binary code
outputted from the code converter 43 has the mode selector switch 67. 68 at each terminal 70.
71 is input to the decoder 45 through the lead 69 and decoded by the decoder 45 to obtain a
decimal code ( 1 to l′-16 Jt indicating a predetermined position of each of the faders 14 to
18). The digital signal of the numerical value codeon is output from the decoder 45. The digital
signal output from the decoder 45 is time-divisionally supplied to the respective driving means
63a to 63e by the second multiplexer 46. Each of the driving means 63a to 63e has 16 display
elements 19 to 34 arranged corresponding to the positions of the faders 14 to 18 (separately
divided into 15 for convenience) according to the input digital signal. Is selectively driven, and
one display element 19 to 34 corresponding to the position of each fader 14 to 18 is lit and
displayed at one time. Therefore, if the current positions of all the faders 14 to 18 are displayed
with the lighting states of the display elements 19 to 34, (14) EndPage: 4 is obtained. Next, the
case of storing the position of each fader 14 to 18 will be described. In this case, in a state where
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the faders 14 to 18 are set at an arbitrary position (the display elements 19 to 34 at positions
corresponding to the positions of the faders 14 to 18 are lit and displayed), By switching the
memory channel selector 72 shown in FIG. 2 to, for example, the channel "1", a semiconductor
memory element in the memory circuit 44 to which a predetermined digital signal is to be stored
is selected via the control circuit 72a.
Thereafter, the write button 64 shown in FIG. 2 is pressed to drive the control circuit 64a. When
the write button 64 is pressed, the mode changeover switch 67. 68 is automatically connected to
the terminals 44a and 44b on the memory circuit 44 side, so a predetermined digital signal input
from the code converter 43 into the memory circuit 44 Is written to the predetermined
semiconductor memory element selected by the memory channel selector 72, so that all the
positions of each fader 1-4 to 18 can be stored in the memory element at one time. In a similar
operation, first, each fader 14 to 18 is set to an arbitrary position, then the memory channel
selector 72 is switched to another channel (for example, the channel of "2"), and the write button
64 is further depressed. For example, the positions of the faders 14 to 18 are written and stored
in the memory element selected by the memory channel selector 72. In this embodiment, as
shown in FIG. 2, the memory channel selector 72 is configured to be able to store a total of four
fader positions from "1" to "4". The number of channels to be stored may be increased. The case
of reading out the position of each stored fader 14 to 18 and displaying the position will be
described. In this case, since the positions of the faders 14 to 18 are stored for each channel in
the write operation described above, the memory channel selector 72 is switched to specify a
desired channel (for example, 1 channel), Next, when the readout button 65 is pressed, one
display element 19 to 34 arranged at a position corresponding to the position of each of the
faders 14 to 18 is lit and displayed at one time. Therefore, the state where the current position of
each fader 14 to 18 is displayed is immediately shifted to the state where the original position
stored in advance at the desired position is displayed. If you remember the position of each fader
14 to 18 at this time, the position of each original fader 14 to 18 that you memorized
immediately after moving each fader 14 to 18 to any other position (The volume adjustment
position) can be reset to each fader 14-18. By the way, in the above description, an embodiment
in which the present invention is used for detecting the position of a slider-type operator (fader)
has been described, but the present invention is not limited to such an embodiment, but the
position of a rotary operator. It can also be applied for detection.
Among the rotary-type controls, there are controls that use the rotary switch method and
controls that use the continuous unit (17) rotation method, and the position of each control is
displayed. It is necessary to arrange the display element in a state compatible with the method of
using the operation element. Therefore, referring to FIG. 2, the display elements are exemplified
by using input level switching commutators 73a to 73e as operators adopting a rotary switch
system and a panpot operator 74 as an operator adopting a continuous rotation system. The
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arrangement position and the like of will be described. In the case of the input call control
switches 73a to 73e as described above, since the operation switches 73a to 73e can be stopped
for each predetermined positive / condensed switch, the control elements 73a to 73e are
operated. Display elements 75 to 79 are arranged at positions corresponding to the respective
boxes / cons around 73e, and the display elements 75 to 79 corresponding to the positions of
the operators 73a to γ3e stored in advance by the same operation as the above embodiment are
lighted. A desired position of the operators .gamma.3a to 73e is displayed. In the case of the pan
pit operator γ 4, the operator 74 rotates continuously, so the display element 80 is positioned at
a position determined by an appropriate number of divisions around the operator 7 (18)
EndPage: 54. ... arranged in parallel. Similarly to the above, one of the display elements 80...
Corresponding to the position of the operation element 74 stored in advance is lit to display the
desired position of the operation element T4. The positions of the operators 73a to 73e and 14
are stored or displayed by depressing the write button 64 or the read button 65. Next, in the
above embodiment, an AD converter is used to convert the DC voltage from each operating
element into a digital signal corresponding to the position of the operating element. For example,
as shown in FIG. It may be configured to obtain a predetermined digital signal corresponding to
the position of the operating element by sliding on the 4... Using digital signal generating means
81 called a slide encoder. Further, in the above embodiment, as shown in FIG. 3, detection is
made based on the amount of change in DC voltage obtained in step d. For example, using a
potentiometer 85 of a set of rotarys as shown in FIG. The position of the fader 86 may be
detected by detecting a voltage proportional to the position of the fader 86 from the meter 85.
As is apparent from the above description, according to the present invention, conventionally, the
position memory of each operating element, for example, the fader, can be moved in the moving
direction of each of 7 units to the horizontal position of each fader. The position of each fader
can not be stored unless it is set to one of each 7 ada, but the position of a large number of
faders is stored at one time by a simple operation (suppression of the write button) Can.
Further, according to the present invention, in the conventional recording method using the
carful, only the position storage can be performed because the cursor is set one by one for each
fader. You can remember the position of the street in any way. Furthermore, according to the
present invention, since the position of one or more species other than 7 ada can be stored and
displayed, the knob can be quickly moved to the desired position.
4. Brief Description of the Drawings FIG. 1 is a front view showing a conventional microphonemixer using a cursor for position storage. -Fig. 2 is a plan view showing a microphone-mixer to
which the position storage device of the present invention is applied, Fig. 3 is a partially broken
perspective view showing an example of a position detection unit of an operating element, and
Fig. FIG. 5 is a partially broken perspective view showing another example of the digital signal
generation means, and FIG. 6 is a part showing another example of the position detection unit of
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the operation element. 18 is a schematic perspective view. γ3a to 73e, 74 ° 82.86 ··· Operators
(faders) 19 to 34. γ5 to 79.80 · · · Display element 36 · · · Slider 37. 38 · · · Resistor 42 · Digital
signal generating means (AD converter) (21) 44 · · · Memory circuit 45 · · · · Decoders 47 to 62 · · ·
Switching elements 63a to 63e · Drive means 67. 68 · · · Mode switching switch Patent applicant
Sony Corporation Attorney Attorney Minoru Koike (22) EndPage: 6
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