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JP2001016680

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DESCRIPTION JP2001016680
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
automatic audio volume that automatically stabilizes the volume of audio levels output from
various audio devices such as televisions, cassette radios, CDs, MDs, LDs, and karaoke sets. The
present invention relates to an adjustment circuit, and further relates to an automatic voice
volume control circuit including a circuit for an automatic voice switching device that
automatically switches voice input of each audio device.
[0002]
[Background Art] Conventionally, a wide variety of devices are commercially available on the
market, and there are several types of devices in each home. In order to make the volume
constant, each volume was adjusted and manually adjusted while listening to the remote control
with the ear.
[0003]
[0003] However, it can not be adjusted to make the sound volume of the sound level outputted
simultaneously by applying a plurality of audio devices at the same time and to make them
constant, and therefore, one device The volume is listened to and remembered by the ear, and it
is performed by means of adjusting the volume of other devices later, but it has been very
difficult to make it constant because of problems with the passage of time and the accuracy of
the remembered volume.
09-05-2019
1
[0004]
SUMMARY OF THE INVENTION In view of the above-mentioned reasons, the present invention
was conceived as a result of intensive research, and an automatic voice volume control circuit
according to claim 1 comprises a pair of voice input channels; A first amplification means
provided with a pair of first amplification elements for passing an audio input inputted from a
pair of audio input channels, a first resistance and a second resistance, and an audio input passed
through the first amplification means A second amplification means comprising a pair of left and
right second amplification elements, a third resistance and a fourth resistance, a fifth resistance
for passing an audio input passing through the second amplification means, and a fifth resistance
A third amplification means comprising a sixth resistance, a seventh resistance and a third
amplification element, and an eighth resistance for amplifying an audio input that has passed
through the third amplification means are provided with a pair of audio output channels. The
10th resistance connected to the voice input channel of A fourth amplification means comprising
an eleventh resistance and a fourth amplification element, and a diode for converting an AC
voltage of the speech input having passed the fourth amplification means into a DC voltage; ACDC conversion means comprising a 12th resistor, a capacitor and a 13th resistor, and 5th
amplification means comprising a 14th resistor, a fifth amplification element and a 15th resistor,
and an audio input passed through the AC-DC conversion means And a first terminal and a
second terminal provided on both sides of the fourth resistor of the second amplification means,
and an IC-side first terminal and an IC-side second terminal for connecting the first terminal and
the second terminal. IC, IC-side third terminal and IC-side fourth terminal provided in IC, and
third terminal and fourth terminal provided in fifth amplification means for connecting IC-side
third terminal and IC-side fourth terminal And the like.
[0005]
Further, according to a second aspect of the present invention, there is provided an automatic
voice volume control circuit as set forth in the first aspect, wherein the first input channel
connected to the voice output circuit of the first audio device. A second input channel connected
to the audio output circuit of the second audio device, an analog switch connected respectively to
the first input channel and the second input channel, and a pair for detecting the second input
channel and the audio signal And an output channel connected to an analog switch.
[0006]
Therefore, an object of the present invention is to provide an automatic sound volume control
circuit for making the sound of a plurality of audio devices constant, and automatically make the
volume of the audio level outputted by all audio devices constant. It provides a circuit, and
further provides a circuit of an apparatus for automatically switching the sound of a plurality of
audio devices.
09-05-2019
2
[0007]
In the present invention, the first and second terminals provided on both sides of the fourth
resistor of the pair of left and right second amplifying means, and the respective first and second
terminals are connected. An IC including a first IC-side terminal and an IC-side second terminal,
an IC-side third terminal and an IC-side fourth terminal provided in the IC, and the IC-side third
terminal and the IC-side fourth terminal By providing the third terminal and the fourth terminal
provided in the fifth amplification means to be connected, the resistance value of the CDS cell of
the IC is changed to output the second amplification element of each of the second amplification
means Constant output, passing the fifth resistor through the fifth resistor, outputting it to the
third amplification means, amplifying it, and outputting it to the respective audio output
channels. Furthermore, while connecting the IC and the analog switch, The audio signal of the
second acoustic device detected by the pair of transistors for signal detection is I In is inputted to
the analog switch as a priority signal, and outputs the audio signal of the second audio device by
the analog switch output channel as a priority signal.
[0008]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The audio automatic volume
control circuit according to the present invention will be described with reference to the
drawings of the embodiment.
[0009]
FIG. 1 is a schematic diagram of an automatic voice volume control system using an automatic
voice volume control circuit according to the present invention, and FIG. 2 is a block diagram for
explaining an embodiment of the automatic voice volume control circuit according to the present
invention. FIG. 3 is a block diagram for explaining the circuit for the automatic sound switching
device attached to the automatic sound volume adjusting circuit of the present invention.
[0010]
The present invention is an automatic voice volume control circuit 100 for automatically making
constant the volume of the audio level output from various audio devices (not shown) such as a
television, cassette radio, CD, MD, LD, karaoke set and the like. The present invention relates to
an automatic voice volume control circuit 100 which interposes an automatic voice switching
device circuit 200 for automatically switching voice input of each audio device. The volume
adjustment circuit 100 has a pair of left and right audio input channels INL-CH. INR-CH and the
pair of audio input channels INL-CH. A pair of first amplifying elements IC1L. IC1R and the first
resistor R1L. R1R and the second resistor R2L. R2R and the respective first amplification means
1L. 1R and the first amplification means 1L. A pair of left and right second amplification
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3
elements IC2L. IC2R and third resistor R3L. R3R and fourth resistor R4L. R4R and the respective
second amplification means 2L. 2R and the respective second amplification means 2L. Each of
the fifth resistors R5L. R5R and the respective fifth resistors R5L. A sixth resistor R6L. R6R and
the seventh resistor R7L. R7R and the third amplification element IC3L. Each third amplification
means 3L. 3R and the respective third amplification means 3L. An eighth resistor R8L.4 is used
to amplify the audio input passed through 3R. A pair of left and right audio output channels
OUTL-CH. An OUTR-CH is provided, and the pair of left and right audio input channels INL-CH.
Each tenth resistor R10L. R10R and the respective tenth resistors R10L. A fourth amplification
means 4 provided with an eleventh resistor R11 and a fourth amplification element IC4 and a
diode D1 for converting an AC voltage of the speech input passed through the fourth
amplification means 4 into a DC voltage , An AC-DC conversion means 5 comprising a 12th
resistance R12, a capacitor C1 and a 13th resistance R13, and a DC voltage passed through the
AC-DA conversion means 5 is a 14th resistance R14, a fifth amplification element IC5 and a fifth
And 15th resistance R15, and the 5th amplification means 6 provided, and each said 2nd
amplification means 2L. 2R fourth resistor R4L. The respective first terminals 1AL. 1 AR and
second terminal 2 AL. 2AR and the respective first terminals 1AL. 1 AR and second terminal 2
AL. 2AR connected to the IC side first terminal 1BL. 1BR and IC side second terminal 2BL. The
fifth amplification means for connecting the IC 7 provided with 2BR, the IC side third terminal 3B
and the IC side fourth terminal 4B provided in the IC 7, and the IC side third terminal 3B and the
IC side fourth terminal 4B .5 and the third terminal 3A and the fourth terminal 4A, and the CDS
cell CDSL. By changing the resistance value of the CDSR, the respective second amplification
means 2L. 2R second amplification element IC2L. The output to IC2R is fixed, and the constant
output is output to the fifth resistor R5L. The third amplification means 3L. Output to 3R and
amplified, each audio output channel OUTL-CH. It outputs to OUTR-CH.
[0011]
That is, the automatic sound volume control circuit 100 of the present invention is incorporated
in the system as shown in the schematic diagram of FIG. 1, and the sound of a plurality of audio
devices is input to the system. It is possible to output a fixed volume sound.
[0012]
Then, as shown in FIG. 2, a pair of left and right voice input channels INL-CH. The INR-CH is a
channel for inputting the audio of the audio device, and a pair of left and right is provided so as
to input the audio of the left side L and the right side R of the audio device, respectively.
[0013]
Next, a pair of first amplification means 1L. 1R represents the pair of left and right voice input
channels INL-CH. The voice input input from the INR-CH is passed, and each first amplification
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element IC1L. IC1R and each first resistor R1L. R1 R and respective second resistors R2 L. R2R
and an audio input channel INL-CH. INR-CH and the first amplification element IC1L. A circuit
connected to each negative side with IC1R is connected to the first resistor R1L. R1R and
capacitor C2L. C2R, and further, each first amplifying element IC1L. Before and after the IC1R,
the second resistor R2L. R2R is bypassed.
[0014]
Next, a pair of left and right second amplification means 2L. 2R represents the first amplification
means 1L. 1R to pass the voice input, and the second amplification element IC2L. IC2R and third
resistor R3L. R3R and fourth resistor R4L. R4R and each of the first amplification elements IC1L.
IC1R and the second amplification element IC2L. A third resistor R3L. R3R is interposed, and the
second amplification element IC2L. Before and after IC2R, a fourth resistor R4L. R4R is bypassed
and each fourth resistor R4L. Before and after R4R, first terminals 1AL. 1AR and second
terminals 2AL. It is provided with 2AR.
[0015]
Furthermore, each second amplification means 2L. 2R and respective third amplification means
3L. 3R and the second amplification means 2L. The fifth resistor R5L. R5R is connected to a
capacitor C3L. It intervenes with C3R.
[0016]
Next, each third amplification means 3L. 3R is a sixth resistor R6L. R6R and seventh resistor R7L.
R7R and third amplifying element IC3L. IC3R and the second amplification means 2L. After
passing through 2R, the capacitor C3L. C3R and fifth resistor R5L. The input speech having
passed through R5R is the third amplification element IC3L. The third amplifier element IC3L.
Before and after the IC3R, the seventh resistor R7L. R7R is bypassed, and the sixth resistor R6L.
R6R is an audio input channel INL-CH. It is connected to a positive side circuit described later
from INR-CH, and further, a fifth resistor R5L. R5R and the third amplification element IC3L.
Between the IC3R and the positive side circuit, a sixteenth resistor R16L. R16R is connected.
[0017]
And, each third amplification means 3L. 3R and a pair of left and right audio output channels
OUTL-CH. OUTR-CH refers to capacitors C4L. C4R and eighth resistor R8L. R8R is connected, and
the eighth resistor R8L. R8R and audio output channel OUTL-CH. Between the OUTR-CH and the
positive side circuit are connected ninth resistor R9L. It is connected via R9R.
09-05-2019
5
[0018]
Further, the fourth amplification means 4 is provided with a pair of left and right voice input
channels INL-CH. INR-CH is connected to a pair of tenth resistors R10L. R10R is connected to
connect each tenth resistor R10L. A capacitor C5 is connected between R10R, and a fourth
amplification element IC4 bypassing the eleventh resistor R11 is provided before and after the
fourth amplification means 4.
[0019]
Next, the AC-DA converting means 5 comprises a diode D1, a twelfth resistor R12, a capacitor C1
and a thirteenth resistor R13 to convert the AC voltage of the voice input passed through the
fourth amplifying means 4 into a DC voltage. It is a thing.
[0020]
The fifth amplification means 6 comprises a fifth amplification element IC5, a fourteenth
resistance R14 and a fifteenth resistance R15, and amplifies the DC voltage which has passed
through the AC-DC conversion means 5.
[0021]
Furthermore, each first terminal 1AL. 1 AR and second terminal 2 AL. 2AR means each second
amplification means 2L. 2R fourth resistor R4L. It is provided on both sides of R4R, and an ICside first terminal 1BL. 1BR and IC side second terminal 2BL. It is for connecting with 2BR.
[0022]
The third terminal 3A and the fourth terminal 4A have a fifteenth resistor R15 interposed on one
side before and behind the fifth amplification element IC5 of the fifth amplification means 6, and
an IC provided in an IC 7 described later. This is for connecting the side third terminal 3B and the
IC side fourth terminal 4B.
[0023]
Next, each IC 7 is a CDS cell CDSL. Each of the first terminals 1AL. 1 AR and second terminal 2
AL. IC-side first terminal 1BL. 1BR and IC side second terminal 2BL. While having 2BR, the IC
side third terminal 3B and the IC side fourth terminal 4B for connecting to the third terminal 3A
and the fourth terminal 4A are provided with a light emitting element LED interposed
therebetween. .
09-05-2019
6
[0024]
The automatic voice volume control circuit 100 according to the present invention is a CDS cell
CDSL. By changing the resistance value of the CDSR, the respective second amplification means
2L. 2R fourth resistor R4L. The output to R4R is made constant, and the constant output is
supplied to the fifth resistor R5L. The third amplification means 3L. 3R, and the output signal is
output to the third amplification means 3L. 3R sixth resistor R6L. R6R and the seventh resistor
R7L. R7R and the third amplification element IC3L. Each of the audio output channels OUTL-CH.
It outputs to OUTR-CH.
[0025]
Next, a pair of left and right audio input channels INL-CH. The positive side of INR-CH and the
audio output channel OUTL-CH. The positive side of OUTR-CH is connected by a positive circuit,
and the positive side circuit is further connected to the first amplification element IC1L. IC1R,
second amplifying element IC2L. IC2R, third amplifying element IC3L. Further, the positive side
circuit is connected to the third resistor R5L. R5R and the third amplification element IC3L. The
16th resistor R16L. Connected through R16R, the eighth resistor R8L. R8R and audio output
channel OUTL-CH. The ninth resistor R9L. It is connected via R9R and is further grounded.
[0026]
Furthermore, the automatic sound volume adjusting circuit 100 according to claim 2 of the
present invention is different from the automatic sound volume adjusting circuit 100 according
to claim 1 between the automatic sound switching circuit 200 and each audio equipment.
Between the first input channel IN1GRL connected to the audio output circuit (not shown) of the
first audio device and the audio output circuit (not shown) of the second audio device A second
input channel IN2GRL, an analog switch IC 201 connected respectively to the first input channel
IN1GRL and the second input channel IN2GRL, and a pair of transistors TR201.
An IC 202 connected via a TR 202 and an output channel RL 200 connected to the analog switch
IC 201, which connects the IC 201 and the analog switch IC 201, and a pair of transistors TR
201 for detecting an audio signal .
The audio signal of the second audio device detected by the TR 202 is input to the analog switch
IC 201 as a priority signal by the IC 202, and the audio signal of the second audio device is
output to the output channel RL 200 as the priority signal by the analog switch IC 201 is there.
09-05-2019
7
[0027]
That is, the block diagram shown in FIG. 3 is a pair of left and right voice input channels INL-CH.
It is a circuit 200 for automatic switching of voices for automatically switching voices to be
attached to the INR-CH via a connector or the like, and a voice output circuit (not shown) of the
first audio device is connected to the first input channel IN1GRL. The audio output circuit of the
second audio device is connected to the second input channel IN2GRL.
[0028]
That is, the audio signal of the first audio device is input from the first input channel IN1GRL to
the fourth pin and the eleventh pin of the analog switch IC 201, while the audio signal of the
second audio device is input to the second input channel IN2GRL. From the second to the
fifteenth pins of the analog switch IC 201.
[0029]
Next, when the audio signal of the first audio device is input to the first input channel IN1GRL
and the audio signal of the second audio device is input to the second input channel IN2GRL, a
pair of audio signals is detected. A signal is input to pin 1 or 2 of IC 202 via transistor TR 201 or
transistor TR 202, and a voltage is applied to pin 10 of IC 201 by an output signal of pin 6 of IC
202, and a priority signal is generated as a priority signal. The audio signal of the second audio
device is prioritized and output from the pin # 13 and the pin # 13 to the output channel RL200.
[0030]
When there is no input of the audio signal of the second audio device in the second input
channel IN2GRL, the third pin and the thirteenth pin of the analog switch IC 201 are connected
to the first input channel IN1GRL of the first audio device. The input audio signal is output from
the output channel RL200.
[0031]
According to the above-described configuration, the automatic sound volume adjusting circuit of
the present invention can make the output sound volume of various kinds of audio equipment
constant, and does not adjust the audio equipment individually. In any case, an output of
constant volume can be obtained, and furthermore, the above-mentioned audio equipment for
the output can be automatically switched, which is a revolutionary and highly practical invention.
09-05-2019
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[0032]
Brief description of the drawings
[0033]
FIG. 1 FIG. 1 is a schematic view of an audio automatic volume control system using the audio
automatic volume control circuit of the present invention.
[0034]
FIG. 2 is a block diagram for explaining an embodiment of the automatic sound volume adjusting
circuit of the present invention.
[0035]
FIG. 3 is a block diagram for explaining the circuit for the automatic sound switching device
attached to the automatic sound volume adjusting circuit of the present invention.
[0036]
Explanation of sign
[0037]
100 audio automatic volume control circuit IN L-CH audio input channel IN R-CH audio input
channel OUTL-CH audio output channel OUTR-CH audio output channel 1L first amplification
means 1R first amplification means 2L second amplification means 2R second amplification
means Amplification means 3L Third amplification means 3R Third amplification means 4 Fourth
amplification means 5 AC-DA conversion means 6 Fifth amplification means 7 ICIC 1L First
amplification element IC1R First amplification element IC2L Second amplification element IC2R
Second amplification element IC3L Third amplification element IC3R Third amplification element
IC4 Fourth amplification element IC5 Fifth amplification element R1L First resistance R1R First
resistance R2L Second resistance R2R Second resistance R3L Third resistance R3R Third
resistance R3R Third resistance R4L Fourth resistance R4R Fourth Resistor R5L Fifth resistor
R5R Fifth resistor R6L Sixth resistor R6R Sixth resistor R7L Seventh resistor R R Seventh
resistance R8L Eighth resistance R8R Eighth resistance R9L Tenth resistance R10L Tenth
resistance R10R Tenth resistance R11 Eleventh resistance R12 Twelfth resistance R13
Thirteenth resistance R14 Fourteenth resistance R14 Fourteenth resistance R15 Fifteenth
resistance R16L 16th resistor R16R 16th resistor D1 diode C1 capacitor C2L capacitor C2R
capacitor C3L capacitor C3R capacitor C4L capacitor C4R capacitor C5 capacitor 1AL first
terminal 1AR first terminal 1AR IC side first terminal 1BR IC side first terminal 2AL second
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terminal 2AR second terminal 2AR second Two terminal 2BL IC side second terminal 2BR IC side
second terminal 3A third terminal 3B IC side third terminal 4A fourth terminal 4B IC side fourth
terminal LED light emitting element 200 circuit for automatic voice switching device IN1GLR
first input channel IN2GLR Second Input channel IC201 Analog switch IC202 ICTR201 transistor
TR202 transistor RL200 output channel
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