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JPH11252697

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DESCRIPTION JPH11252697
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
joint calling apparatus for broadcasting by sharing a broadcasting speaker with a plurality of
broadcasting microphones.
[0002]
2. Description of the Related Art Conventionally, when guiding a patient waiting in a waiting
room of a hospital to an examination room, voices of calls are input from respective microphones
installed in a plurality of examination rooms, and one provided in the waiting room A joint calling
apparatus is used which broadcasts a call from the speaker of. As this kind of joint calling device,
as shown in FIG. 2, it is connected to a plurality of transmitting devices 20 respectively installed
in each examination room, a main device 21 to which the transmitting device 20 is connected,
and a main device 21. And one speaker 22 to be provided.
[0003]
The transmission apparatus 20 includes a microphone 20a, a preamplifier 20b connected to the
microphone 20a, and a transmission switch 20c to which the preamplifier 20b is connected. The
main apparatus 21 is provided with a preamplifier 21a. In the transmission device 20, when the
transmission switch 20c is pressed to close and voice is input to the microphone 20a, an audio
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signal is sent to the main device 21 through the preamplifier 20b and the transmission switch
20c, and the preamplifier is After being amplified by 21a, the signal is broadcasted from the
speaker 22.
[0004]
SUMMARY OF THE INVENTION However, in such a joint calling apparatus, while one
transmitting apparatus is being used to share a speaker, the other transmitting apparatus ends
the transmission. If there are a large number of examination rooms, the probability of congestion
may increase as the number of voice transmitting devices increases, which may lead to
inconvenience in use.
[0005]
SUMMARY OF THE INVENTION The present invention has been made in view of the abovementioned problems, and it is an object of the present invention to provide a co-calling device
that enables the use of a speech transmission device at any time even when a large number of
speech transmission devices are provided.
[0006]
SUMMARY OF THE INVENTION In order to achieve the object, the joint calling apparatus
according to the present invention has a plurality of broadcasting microphones, a broadcasting
amplifier connected to the broadcasting microphones, and a switch connected to the
broadcasting amplifier. A voice input device, a main device to which voice signals from each
voice input device are input, and a broadcast speaker for broadcasting voice from the main
device, the main device voice input according to the on / off of the switch An audio memory
control unit that applies start and end signals before and after an audio signal of broadcast sound
sent from the device, and an audio signal to which the start signal and end signal are added by
the audio memory control unit A voice memory allocated and stored respectively, a signal
detection switch connected to the voice memory and selected correspondingly to each voice
memory, and a start / end signal via the signal detection switch A start / end signal detection
circuit to be detected, a counter for cyclically selecting the signal detection switch and
performing read control of the selected voice memory via the voice memory control unit, and a
start signal at the start / end signal detection circuit The control unit stops the operation of the
counter when it is detected, closes the voice switch connected to the broadcast speaker, and
starts the operation of the counter when the end signal is detected, and opens the voice switch. is
there.
[0007]
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According to the joint calling apparatus according to the present invention, the voice memory is
provided corresponding to the plurality of voice input devices connected to the main device, the
periodically stored memory is taken out from each voice memory, and the sound is emitted from
the speaker Therefore, even if another voice input device is used in each voice input device and
broadcasted from a speaker, voice can be input as needed without waiting for the end of the
broadcast, and voice can be input to the voice input device. After the broadcast of the sound from
the other voice input device is finished, the sound is broadcasted from the speaker.
For this reason, even if a large number of voice input devices are installed, the usage point can be
improved.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the joint calling
apparatus according to the present invention will be described below with reference to the
drawings.
In FIG. 1, the joint calling apparatus broadcasts voices from the main apparatus M and a plurality
of voice input apparatuses 1a, 1b, 1c outputting the voice signals 8a, 8b, 8c to the main
apparatus M and the main apparatus M, respectively. A broadcast speaker 13 is provided.
Although three voice input devices are displayed, the present invention is not limited to this.
[0009]
The voice input device 1a is provided with a broadcast microphone 2a, a broadcast amplifier 3a
connected to the broadcast microphone 2a, and a switch 4a connected to the broadcast amplifier
3a. The other voice input devices 1b and 1c have the same configuration, and are provided with
broadcast microphones 2b and 2c, broadcast amplifiers 3b and 3c, and switches 4b and 4c,
respectively. In the main device M, activation detection circuits 5a, 5b, 5c for detecting the
closing of the switches 4a, 4b, 4c of the voice input devices 1a, 1b, 1c, respectively, and the voice
memory control unit 17 are sequentially provided. In the voice memory control unit 17, when
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the voice signals 8a, 8b and 8c are inputted through the activation detection circuits 5a, 5b and
5c, the start signals 7a, 7b and 7c are generated before and after the respective voice signals 8a,
8b and 8c. And end signals 9a, 9b, 9c are added. The main device M is provided with voice
memories 6a, 6b and 6c corresponding to the respective voice input devices 1a, 1b and 1c, and
the voice memory control unit 17 causes the start signals 7a, 7b and 7c and the end signals 9a,
9b and 9c. The voice signals 8a, 8b, and 8c to which the voices are added are stored in the
assigned voice memories 6a, 6b, and 6c, respectively. Signal detection switches 10a, 10b and 10c
are connected to the voice memories 6a, 6b and 6c, respectively, and a counter 15 is provided to
sequentially select the signal detection switches 10a, 10b and 10c and control the opening and
closing. Furthermore, the signal detection switches 10a, 10b and 10c are connected to the start /
end signal detection circuit 14 for detecting the start signals 7a, 7b and 7c and the end signals
9a, 9b and 9c added to the audio signals 8a, 8b and 8c. Be done. A control unit 16 is connected
to the start / end signal detection circuit 14, and an output side of the control unit 16 is an audio
switch for controlling connection and disconnection of the counter 15 and the audio memories 6
a, 6 b and 6 c and the audio amplifier 12. 11a, 11b and 11c are connected. One broadcast
speaker 13 is connected to the audio amplifier 12.
[0010]
The operation of such a joint calling apparatus will be described. In the voice input device 1a,
when the switch 4a is pressed and the voice signal 8a is input from the broadcast microphone
2a, the start detection circuit 5a of the main device M detects the closing of the switch 4a, and
the voice memory control unit 17 is Driving is performed, and the start signal 7a and the end
signal 9a are added before and after the audio signal 8a, and are stored in the audio memory 6a.
Similarly, the activation detection circuits 5b and 5c and the audio memory control unit 17
operate and the audio signals 8b and 8c from the other audio input devices 1b and 1c are stored
in the corresponding audio memories 6b and 6c, respectively.
[0011]
On the other hand, the counter 15 sequentially selects and closes the signal detection switches
10a, 10b and 10c corresponding to the respective voice memories 6a, 6b and 6c every 2
seconds, for example, and controls the voice memory control unit 17 to The voice memories 6a,
6b, 6c corresponding to the detection switches 10a, 10b, 10c are output, start signals 7a, 7b, 7c,
end signals 9a, 9b, 9c are added and stored in the voice memories 6a, 6b, 6c. The audio signals
8a, 8b and 8c are output to the start / end detection circuit 14. For example, when the signal
detection switch 10 a is closed, when the start signal 7 a is detected in the start / end signal
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detection circuit 14, the start / end signal detection circuit 14 outputs a counter stop signal to
the control unit 16. The operation of the counter 15 is stopped by 16 and the voice switch 11a is
closed. As a result, only the signal detection switch 10a corresponding to the voice memory 6a in
which the detected start signal 7a is stored is closed. Then, the audio signal 8a from the audio
memory is input to the audio amplifier 12 via the audio switch 11a, amplified, and emitted from
the broadcast speaker 13. When the end signal 9a is input to the start / end signal detection
circuit 14 through the closed signal detection switch 10a, the start / end signal detection circuit
14 outputs a counter drive signal to the control unit 16, and the control unit 16 At the same time
as the operation of the counter 15 is started, the voice switch 11a is opened.
[0012]
In addition, when the start signal 7b is detected when the signal detection switch 10b is closed,
and when the start signal 7c is detected when the signal detection switch 10c is closed, the
control unit 16, the counter 15, the voice switch 11b, 11c, the audio memories 6b and 6c, the
amplifier 12, and the broadcast speaker 13 operate in the same manner. Thus, the audio signals
8a, 8b, 8c are temporarily stored in the audio memories 6a, 6b, 6c, and the start signals 7a, 7b,
7c added to the audio signals 8a, 8b, 8c stored in the audio memory. Are sequentially detected by
the start / end signal detection circuit 14, and the signal detection switches 10a, 10b, 10c and
the audio switches 11a, 11b, 11c are controlled and broadcast from the speaker 13. For this
reason, in another voice input device, voice can be input even when being broadcast from a
speaker.
[0013]
As is apparent from the above description, according to the joint calling apparatus of the present
invention, voice memories are provided corresponding to a plurality of voice input devices
connected to the main unit, and periodical from each voice memory In order to take out the
memory stored in the computer and emit sound from the speakers, another voice input device is
used in each voice input device, and even when being broadcast from the speakers, it is not
necessary to wait for the end of the broadcast as needed. Audio can be input, and if audio is input
to the audio input device, it will be broadcasted from the speaker after the broadcast of audio
from other audio input devices is finished. For this reason, even if a large number of voice input
devices are installed, the usage point can be improved.
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