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JPH099386

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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
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DESCRIPTION JPH099386
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker system capable of streaming music etc. from a plurality of speakers using one main
amplifier, and in particular, using an optical fiber for audio signals between the main amplifier
and the speaker. Can be used to control the volume and the like by using the means for adjusting
the volume of the main amplifier, and further, the volume of the main amplifier and the other
speakers can be controlled via the control device provided in the speaker. An adjustable speaker
system.
[0002]
2. Description of the Related Art In a speaker system such as a stereo device used in a home etc.,
a speaker is arranged in a living room, a kitchen and other rooms to a main amplifier of a stereo
placed in one place. It is done to be able to enjoy the same music even in However, in the speaker
system as described above, there is a problem that noise is likely to be introduced because the
copper wire is used to connect between the main device and the speaker, and the longer the
copper wire, the more the attenuation of the sound signal. There is a problem that the sound
quality output from the speaker is deteriorated due to
[0003]
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Therefore, in order to solve the problems as described above, for example, using copper having a
purity of 6N (99.9999% or more) that constitutes the copper wire, or gold-plating the terminal of
the connection portion Things have been done to reduce noise. In addition to the measures
described above, there are cases where means such as transmitting an audio signal using an
optical fiber without using a copper wire or transmitting an audio signal by light in the air is
used. When an optical fiber is used or when an audio signal is transmitted by an optical signal
transmitted to the air, a feed path is disposed between the speaker and the main amplifier to
supply power for driving the speaker, Noise can be prevented from entering the sound flowing
from the speaker.
[0004]
[Problems to be solved by the invention] However, when it is going to transmit an audio signal
using a conducting wire, if the purity of copper is increased, the cost of the copper wire becomes
very high, and it is wired in many rooms of a home There is a problem that the cost is very high.
In addition, it is possible to provide an apparatus for transmitting and receiving an optical signal
between the main amplifier and the speaker, and to construct an audio signal transmission
apparatus by the optical signal between the two apparatuses, because Blocking the sound will
block the sound, which is a bigger problem than noise. In order to solve the problems as
described above, when configuring means for transmitting an audio signal using an optical fiber,
the main body side device (main amplifier) and the speaker are formed using an integrated
structure of the optical fiber and the feeder. The wiring cost is low, and the sound quality of the
music flowing from the speaker can be maintained in a good state, since only one line is
connected between them.
[0005]
As described above, even when a device for transmitting an audio signal using an optical fiber is
used, the volume flowing from the speaker depends on the volume adjusted by the device on the
main unit side. When the device is provided, the volume can be adjusted only for the speaker.
However, when transmitting music from one main unit to each room at home, for example, when
it is desired to increase the volume in one room and decrease the volume in the other room, it is
attached to each speaker in each room It is necessary to adjust the volume individually, which is
troublesome. Also, if you want to turn off the volume of a room without people and keep the
music flowing at a small volume, or if you want to increase the volume of a particular room for a
wake-up, enter that particular room for volume There is a problem that the speaker system does
not function effectively because it needs to be adjusted.
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[0006]
SUMMARY OF THE INVENTION The present invention solves the problems of the conventional
speaker system as described above, and it is between the main unit side device arranged in one
room etc. and terminal devices such as speakers arranged in a plurality of rooms. In addition, it is
an object of the present invention to provide an apparatus capable of providing an audio signal
transmission means using an optical fiber and performing volume adjustment from each terminal
device to the main body side device and adjusting the other terminal device from the terminal
device. There is.
[0007]
SUMMARY OF THE INVENTION The present invention connects a body side apparatus provided
with audio signal input means and a terminal apparatus provided with a plurality of speakers,
and outputs the audio signal output from the audio signal input means. The present invention
relates to a speaker system output from a speaker of a terminal.
In the present invention, signal control means are disposed in each of the terminal devices, and
means for adjusting the volume of each speaker are provided, and the audio signal input means
and the terminal devices are connected using an optical fiber and an electric wire. An apparatus
for transmitting an audio signal via the optical fiber is configured. Further, in the present
invention, a control signal output unit for the main body side device is disposed in the control
device of the terminal device, and an audio signal for each terminal device is provided to the
main body side device based on a signal output from the terminal device. It is also possible to
provide means for performing control of the control unit and control means for controlling the
output of each terminal device based on the control signal transmitted from one terminal device
to the main body side device.
[0008]
Furthermore, in the present invention, the control device of the terminal device is provided with
control signal output means for the main device and control signal output means for another
terminal device, and the main device is outputted from the terminal device. Means for controlling
an audio signal for each terminal based on the signal and means for transmitting a control signal
for another terminal output from one terminal, and from one terminal to the main device It is
also possible to configure means for controlling the output of each terminal based on the
transmitted control signal and controlling the output for the designated terminal based on the
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command from one terminal. .
[0009]
[Operation] As described above, in the system of the present invention, an optical fiber and a
feeder are used to connect between the main unit with the main amplifier and the terminal with
the speaker, and power is supplied using the feeder. By configuring the means for transmitting
the audio signal using an optical fiber, it is possible to prevent noise from entering the audio
signal and enjoy high-quality music.
In addition, the control unit for adjusting the volume in the entire system is provided in the main
body side device, and the control means such as the amplifier is provided in the terminal device,
so that the volumes of the plurality of speakers disposed in the entire speaker device are
collectively. The adjustment and the volume from the speaker of each terminal can be arbitrarily
adjusted. Furthermore, a control signal receiving means from the terminal device is disposed in
the control device provided in the main body side device, and an output means for controlling the
main body side device and controlling any terminal is disposed in the terminal device. Thus, the
terminal device can perform control of the sound volume for all the speakers and control of the
sound volume for a specific speaker as needed from time to time, and the volume adjustment
operation can be easily performed.
[0010]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The loudspeaker system will be
described in accordance with the invention in accordance with the illustrated example. The
example shown in FIG. 1 shows a schematic configuration of the speaker system according to the
present invention, from the main amplifier 2 in which one room is arranged to the terminal
devices 10, 10a,. Are connected via transmission lines 5, 5a... To constitute the speaker system 1
in the home. In the speaker system 1, audio signal input means 21 such as a record player, a CD
player, an AM, an FM receiver, etc. are connected to the main amplifier 2, and control signals
such as volume adjustment for the terminal and sound quality adjustment A control signal input
means 23 for output is arranged. Then, the audio signal processing circuit 22 and the control
signal processing circuit 24 process the audio signal input from the audio signal input unit 21
and the control signal input from the control signal input unit 23, and the main controller 25 is
processed. It is transmitted to the output circuit 35 via the output circuit 35, and stereo
broadcasting is performed from the output circuit 35 to the terminal devices 10, 10a. Also, in the
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terminal device connected to the main amplifier 2, the amplifier 11 and the speaker 12 are
respectively disposed, and the received signal is controlled according to the environment such as
the room, and the volume and sound quality are adjusted appropriately. Make music etc.
enjoyable.
[0011]
In the speaker system 1 as described above, as the transmission lines 5 that connect the main
amplifier 2 and the terminal device 10, as shown in FIGS. 2 and 3, the feeder 6 and the optical
fiber 7 are integrated by the insulator 8. Using a composite cable coated with The transmission
line 5 is configured such that a connector (cable-side connector) 9 is integrally provided at the
end portion, as in the case of a cable in which a conventional optical fiber and a feeder are
combined. Then, an E / O (photoelectric conversion) circuit as a terminal of the optical fiber 7
and an O / E (electro-optical conversion) circuit are integrally incorporated in the respective
cable side connectors 9 and inserted into the main body side connector of the transmitter /
receiver. To connect the circuits of the electrical and audio signals respectively. In the
transmission line 5 as shown in FIGS. 2 and 3, the copper wire commonly used for the feeder 6 is
used as means for supplying only power, and the audio signal and the control signal for the
terminal device are optical fiber 7 Send using. Then, by transmitting and receiving an audio
signal as an optical signal, it is possible to prevent noise from entering the optical signal
transmitted through the optical fiber 7 and to enjoy stereo broadcasting with high sound quality.
In addition, since only power is supplied to the feeder disposed in the transmission line, it can be
configured using a general 100 V cable. In the speaker system 1 configured as described above,
control means as shown in FIG. 4 is disposed in the main amplifier 2, and control means as
shown in FIG. Then, in addition to adjusting the volume etc. using the control means disposed in
each terminal device, the control means disposed in each terminal device for the audio signal
transmitted from the main amplifier 2 to each terminal device. , To control the main amplifier 2.
In addition, control is performed such that one terminal device can perform an adjustment
operation with respect to another terminal device arbitrarily without directly operating the main
amplifier by outputting a control signal to another terminal device from one terminal device.
Make up the means.
[0012]
In order to transmit a signal between the main amplifier 2 and the terminal device 10 via the
transmission line in accordance with the above-described purpose, the main device including the
main amplifier shown in FIG. The control means as shown is arranged. The main unit 20 shown
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in FIG. 4 receives the processing circuit 22 for processing the audio signal output from the audio
signal input means 21 and the signals such as volume adjustment and sound quality output from
the control signal input means 23. A processing circuit 24 for controlling the transmission signal
is disposed, and signals output from the two processing circuits are input to the main control unit
25. The main control device 25 is configured as a device having a function of a main amplifier of
a stereo device, and a signal output from the main control device 25 is a distributor provided
corresponding to each terminal device of the distribution circuit 30. 31, 31a, ... sent to each.
[0013]
An output circuit 35 and an E / O conversion circuit 36 are connected to respective output
portions of the distributors 31, 31a, ..., and an audio signal of the adjusted sound quality and
volume is connected to an optical fiber through a junction distribution portion 37. 7. Send to the
voice signaling path according to 7. Further, power supply to the terminal device is connected via
the outlet corresponding to the connector 9 of the transmission line 5 of FIGS. Furthermore, in
the signal transmission system by the optical fiber 7 disposed in the transmission line, the audio
signal and the control signal are transmitted from the main apparatus 20 to the terminal device
10 in a superimposed state, and as described later Are configured to be able to be transmitted
toward the input circuit of the apparatus 20 on the main body side via an optical fiber. Therefore,
in the merging and distributing unit 37 of the main body side apparatus 20, an input / output
device having a merging and distributing function of optical signals is disposed.
[0014]
In the main unit 20, a receiving unit 40 is disposed to receive a control signal from a terminal
unit, and the receiving unit 40 performs O / E conversion of the signal branched and received
from the merging and distributing unit 37. The control signal is transmitted from the circuit 41
to the control circuit 42, and the control signal to the main controller 25 processed by the output
circuit 43 is transmitted. Then, based on the control signal for the main body side device output
from the control signal output means disposed in the terminal device and the control signal for
another terminal device via the main body side device, Control for all and control for a specific
designated terminal device can be performed.
[0015]
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The terminal side device 50 shown in FIG. 5 receives an audio signal output from the main body
side device 20, and outputs a music or the like from the speaker 12, and a control signal for the
main body side device and other terminal devices. And a signal output circuit 60 for outputting
the signal. The input circuit 51 is provided with an O / E conversion circuit 52 for receiving an
optical signal and converting it into an electrical signal, a control circuit 53, and an output circuit
54, which are transmitted from the main control device of the main unit According to the
information, an audio signal is output to the speaker 12. Further, an amplifier function is
incorporated in the control circuit 53 so that the volume and sound quality etc. transmitted to
the speaker 12 can be arbitrarily adjusted.
[0016]
In addition to the control means for the speaker, in FIG. 5, the signal output circuit 60 is disposed
in the terminal side device 50, and as the input means for disposing the signal output circuit 60,
the main control device signal output means 61 and others Two input means of the terminal
signal output means 62 are arranged. Then, control from the terminal device to the main body
side device and control of volume adjustment to other terminal devices via the main body side
device can be performed. The signals output from the two output means of the main controller
signal output means 61 and the other terminal signal output means 62 are output as an optical
signal from the output circuit 63 through the E / O conversion circuit 64, and are merged and
distributed The light is transmitted to the optical fiber 7 through the unit 65, separated through
the junction distribution unit 37 of FIG. 4, and transmitted to the receiving unit 40.
[0017]
In the speaker system 1 formed by connecting the devices shown in FIGS. 4 and 5 via the optical
fiber 7, for example, a music record, a CD (compact disc) 2 player, an FM broadcast receiver, etc.,
an audio signal input means 21. , And outputs the volume and sound quality to be output
through the control signal input means 23 as volume and other adjustment means. Then, the
data is transmitted to the main control device 25 through the processing circuits 22 and 24
connected to each input means, and is transmitted to the terminal device 10 through the
distributor 31 of the distribution circuit 30 and the E / O conversion circuit 36. Directly send. As
described above, in the case where the speakers 12 are operated with the sound quality and
volume adjusted by the main unit 20, as in the case of a general stereo device, in all the rooms in
which the terminal devices are arranged. You can enjoy the same music etc. In addition to the
above configuration, in the speaker system of the present invention, adjustment can be
performed on the main body side device using the signal output circuit disposed in the terminal
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device. Therefore, in the signal output circuit 60 shown in FIG. Terminal for outputting a control
signal to the main unit by operating the signal output unit 61 for the main unit, and transmitting
a control signal to the main control unit 25 from the receiving unit 40 provided in the main unit
20, a terminal provided in the speaker system It is possible to control the volume of all the
speakers of the device.
[0018]
Furthermore, for example, in the case of adjusting the sound volume or the like from one
terminal device 10 to another terminal device 10a, the other terminal signal output unit 62
disposed in the signal output circuit 60 of the terminal device is operated. The control circuit 42
transmits a control signal based on a signal such as a sound volume output from the terminal
device to the main body side device 20 to the main control device 25, and is directed to the
terminal device 10a via the designated distributor. Thus, it is possible to output a signal of the
adjusted volume. As described above, when it is intended to adjust the volume of another
terminal device 10a using a signal output from one terminal device 10, the designated terminal
device 10a is adjusted by the other terminal device Activate the speaker at the specified volume.
Therefore, in order to further adjust the sound volume designated by another terminal device 10
in the terminal device 10a, the main body side is redesigned again by using, for example, a reset
button (not shown). The speaker can be operated at a volume designated collectively by the
device.
[0019]
In the speaker system of the present invention having the configuration as described above, the
signal output circuit 60 provided for the terminal device does not have to be provided for all the
signal output circuits. For example, in a speaker system provided at home The main body side
device 20 is disposed, the signal output circuit is provided only for the terminal device disposed
in the room mainly existing in the daytime, and for the other terminal devices, the speaker
provided with only the input circuit 51 is disposed You can also Also, in a room that does not
need to adjust the volume in particular, a terminal device in which only the speaker and the input
circuit are arranged is provided, and the input circuit and the signal output circuit are only for
the terminal devices of other plural rooms. It is also possible to arrange a terminal device in
which the speaker is incorporated in the speaker. In addition to the above configuration, in the
speaker system of the present invention, it is not necessary to dispose the merging and
distributing unit at the connection portion of the optical fiber for a specific terminal device in
which the signal output circuit is not disposed. It is not necessary to arrange the confluence
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distribution unit also on the main unit side, since the receiving unit corresponding to the unit
does not need to be arranged on the main unit side, and it is not necessary to arrange the light
distribution unit between the terminal unit and the main unit. Devices corresponding to the
signal output circuit of the terminal device can be arranged only for the transmission lines that
need to be used to communicate with each other. Furthermore, in the speaker system according
to the present invention, in addition to the arrangement of one optical fiber between the main
unit and the terminal, two optical fibers for transmitting an optical signal and for receiving are
arranged. In the case where two optical signal transmission means are arranged, they can be
integrally provided in parallel with the feed line, so the construction of the transmission line is
not particularly complicated.
[0020]
Since the speaker system of the present invention is configured as described above, the main
device on which the main amplifier is provided and the terminal device on which the speaker is
provided are connected using an optical fiber and a feeder. By providing means for supplying
power using a feeder and transmitting an audio signal using an optical fiber, it is possible to
prevent noise from entering the audio signal and enjoy good music. Also, by providing control
means for volume adjustment in the entire system in the main unit side and providing control
means such as an amplifier in the terminal unit, the volume of a plurality of speakers arranged in
the entire speaker system can be collectively The adjustment and the volume from the speaker of
each terminal can be arbitrarily adjusted. Furthermore, a control signal receiving means from the
terminal device is disposed in the control device provided in the main body side device, and an
output means for controlling the main body side device and controlling any terminal is disposed
in the terminal device. Thus, the terminal device can perform control of the sound volume for all
the speakers and control of the sound volume for a specific speaker as needed from time to time,
and the volume adjustment operation can be easily performed.
[0021]
Brief description of the drawings
[0022]
FIG. 1 is an explanatory view showing a configuration of a speaker system of the present
invention.
[0023]
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FIG. 2 is a cross-sectional view of a transmission line used in the present invention.
[0024]
FIG. 3 is an explanatory view of a terminal connection portion of a transmission line.
[0025]
FIG. 4 is an explanatory view showing a configuration of a circuit disposed in the main body side
device of the present invention.
[0026]
FIG. 5 is an explanatory view showing a configuration of a circuit disposed in the terminal device
of the present invention.
[0027]
Explanation of sign
[0028]
DESCRIPTION OF SYMBOLS 1 speaker system, 2 main amplifier, 5 transmission line, 6 feeder, 7
optical fiber, 10 terminal device, 11 amplifier, 12 speaker, 20 main body side device, 22 * 24
processing circuit, 25 main control device, 30 distribution circuit, 35 Output circuit, 36 E / O
conversion circuit, 40 reception unit, 41 O / E conversion circuit, 43 output circuit, 50 terminal
side device, 51 input circuit, 54 output circuit, 60 signal output circuit, 61 main controller signal
output Means, 62 Signal output means for other terminals, 63 output circuit, 64 E / O conversion
circuit.
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