JPH02260960A - Identification code adding circuit in voice conference system - Google Patents

Abstract

PURPOSE:To allow a listener to recognize a currently speaking person by making the microphone number of each speaker into an identification code by means of a discrimination code generating part provided on a transmitting side, multiplexing it together with the voice of each speaker by means of a multiplexing part 2, and transmitting it. CONSTITUTION:A sound signal inputted to an identification code generating part 14 generates the discriminating code allocated inherently in the microphone of a voice input part 11 when a microswitching part 13 is turned on, and a discriminating frame pulse indicating the input of the voice, and the sound signal inputs the both outputs to a multiplexing part 16. A multiplexing signal inputted from a subscriber line 17 is separated into the three signals of the identification frame pulse, an identification code signal and the sound signal, the sound signal is converted from a digital signal into an analog signal by a D/A converting part 19, and outputted from the speaker of a voice output part 20. On the other hand, the identification code signal is decoded by an identification code decoding part 21, and with which microphone the speaker has spoke is displayed on a microphone number display part 22.

Description

[Detailed Description of the Invention] [Summary] Regarding a transmitting/receiving device used in an audio conferencing system, the present invention is capable of transmitting and receiving signals from a remote location, with the aim of clearly conveying the intentions and intentions of a speaker to a listener. In an audio conferencing system that performs dialogue, the transmitting side includes an identification code generation unit that converts the microphone numbers of speakers A to N into identification codes, and an identification code generation unit that converts the microphone numbers of speakers A to N, and converts the identification codes together with the voices of each speaker A to N. A multiplexing section for multiplexing and transmitting is provided, and the receiving side further includes a separating section for separating the received data sent from the multiplexing section into respective identification codes and audio signals corresponding to the speaker; A microphone number display unit is provided that decodes the identification code separated by the speaker and displays it as a microphone number, and the present speaker can be identified to the listener from the sound output from the loudspeaker and the microphone number displayed by the microphone number display unit. Configure the system so that it can be recognized.

[Industrial application field]

The present invention relates to a transmitting/receiving device used in an audio conference system.

[Conventional technology]

In recent years, in a highly information-oriented society, there has been a demand for exchanging information quickly and at low cost. For this reason, audio conference systems have been provided that allow conferences to be held without direct interaction even in remote locations.

FIG. 4 is a diagram showing a circuit configuration of a conventional transmitting/receiving device in an audio conference system. In the figure, 31 to 34 are transmitting units, 31a to 31n are audio input units corresponding to speakers A to N, 32a to 32n are A-D conversion units, 33 is a multiplexing unit, and 34 is a subscriber line. It is.

Further, 34 to 37 are receiving sections, 34 is a subscriber line, and 3
5 is a separation section, 36a to 36n are DA conversion sections, and 3
7 is an audio output section.

When the microphones of speakers A to N are turned on, the voices from the speakers A to N are amplified by the audio input units 31a to 31n and sent to the A-D converters 32a to 32.
n respectively. At this time, the A-D converter 32a
~32n converts each input analog audio signal into a digital signal and inputs it to the multiplexing unit 33.
3, the respective audio signals from speakers A to N are multiplexed and sent to the subscriber line 34.

On the other hand, in the receiving section, the multiplexed signal from the subscriber line 34 is input to a separating section 35, and is separated corresponding to each of the speakers A to N, respectively, and input to DA converters 36a to 36n. Then, the D-A converters 36a to 36n convert the digital signal to an analog signal and output it to the audio output section 37.
speaker A to speaker N through the speaker.
The audio is mixed and output.

As described above, in this audio conference system, the speakers A to N are not necessarily clearly distinguished during transmission and reception. For this reason, it may not be possible to clearly convey to the listener what the speaker's intentions are when speaking.

[Problem to be solved by the invention]

Therefore, when a conventional audio conference system is used, a problem arises in that the speaker's will and intention cannot be clearly conveyed to the listener.

The purpose of the present invention is to clearly convey the will and intention of the speaker to the listener.

A multiplexing unit 2 is provided which multiplexes and transmits the audio together with the voices of A to N, and furthermore, on the receiving side, the received data sent from the multiplexing unit 2 is separated into respective identification codes and audio signals corresponding to the speakers concerned. A separating section 3 and a microphone number display section 4 are provided for decoding the identification code separated by the separating section 3 and displaying it as a microphone number. The system is configured so that the current speaker can be recognized by the listener based on the microphone number.

[Means to solve the problem]

In the present invention, as shown in FIG. 1, in an audio conferencing system that performs communication by transmitting and receiving data from a remote location, on the transmitting side, each of the microphone numbers of speakers A to N is converted into an identification code. Identification code generation unit 1-1 to be converted
1-n and the identification code to each speaker [Function] In the present invention, as shown in FIG. Speaker N
After converting each microphone number into an identification code, the multiplexing unit 2 multiplexes and transmits the voices together with the voices of each speaker A to N. Furthermore, on the receiving side, the demultiplexing unit 3 converts the received signals sent from the multiplexing unit 2 into identification codes. The signal is separated into an identification code and a voice signal corresponding to each speaker, and the microphone number obtained by decoding the identification code is displayed on the microphone number display section 4.

Therefore, the sound from the loudspeaker 5 and the microphone number displayed by the microphone number display section 4 are used together,
This allows the listener to recognize the current speaker.

〔Example〕

FIG. 2 is a diagram showing an example of the circuit configuration of the transmitting/receiving device of the present invention, in which (A) is a transmitting section and (B) is a receiving section. Further, FIG. 3 is a diagram showing a time chart of the transmitting/receiving apparatus according to the present invention, in which (A) is a transmitting section and (B) is a receiving section.

In the figure, 11 to 16 indicate the configuration of the transmitting section, 11 is a voice input section for inputting voice from an arbitrary speaker I, 1
2 is an A-D converter, 13 is a microphone switch, 14 is an identification code generator, 15 is a delay circuit, and 16 is a multiplexer. Note that 17 is a subscriber line of a voice transmission path. Every time the microphone switch section 13 is turned on, the voice signal of the speaker I inputted from the voice input section 11 is amplified and inputted to the A-D conversion section 12 and the identification code generation section 14, respectively.

At this time, the A-D converter 12 converts the input audio signal from an analog or log signal to a digital signal and sends it to the delay circuit 1.
5, the signal is input to the multiplexer 16 after phase adjustment is performed in the delay circuit 15 to provide a certain amount of delay between the signal and the audio signal. - The audio signal input to the identification code generation section 14 is an identification code obtained by converting a decimal microphone-specific number uniquely assigned to the microphone of the audio input section 11 into a binary number when the microphone switch section 13 is on. and,
An identification frame pulse indicating that audio has been input is generated, and both outputs are input to the multiplexer 16.

This multiplexer 16 multiplexes these three signals, the audio signal from the delay circuit 15, the identification code signal and the identification frame pulse received from the identification code generator 14, and also multiplexes other signals. The three signals corresponding to the subscriber's voice signals are also multiplexed and each signal is sent to the subscriber line 17.

The details of these operations will be explained with reference to the time chart of FIG. 3(A). The audio signal from the microphone is A
- In the D converter 12, the signal is converted into a digital audio signal of FIG.
In step 5, adjust the phase of the audio signal to be delayed by T,
FIG. 3 (The delayed audio signal of dl is manually input to the multiplexing section 16.

Further, in the identification code generation section 14, the microphone switch section 13
When on, an identification frame pulse representing the reference position of the identification code shown in FIG. 3(C) is first generated, and then, after a delay of T2, an identification frame pulse representing the reference position of the identification code shown in FIG. 3(a) is generated. The identification code signals shown in FIG. 3(b) are generated and each is input to the multiplexing section 16. In the multiplexing section 16, (b
) identification code, (C) identification frame pulse, (d)
(11!1 multiplexed signal is output).

FIG. 3(B) shows the circuit configuration of the receiving section of the present invention, where 18 is a separation section, 19 is a D-A conversion section, 20 is an audio output section, and 21
2 is an identification code decoding section, and 22 is a microphone number display section. The multiplexed signal shown in FIG. 3 (") inputted from the subscriber line 17 is separated into three signals: an identification frame pulse, an identification code signal, and an audio signal in the separating section 18. Only those corresponding to the voice of speaker ■, which corresponds to +11, are listed.The voice signal shown in FIG. On the other hand, the identification code signal is decoded by the identification code decoder 23 based on the identification frame pulse and converted from a binary number to a decimal number. The speech made using the microphone is displayed.The operation of these receiving sections will be explained below using the time chart shown in FIG. 3(B).

Fig. 3 (signal fl is three multiplexed signals of an identification frame pulse, an identification code signal, and an audio signal;
This signal has the same configuration as the signal in Figure (8). These three signals are input to the separation unit 18 and separated into (river identification frame pulse, (h) identification code signal, and (1) audio signal. The code decoding unit 21 decodes the phantom identification frame pulse (based on the phantom identification frame pulse) and inputs it to the microphone number display unit 22 to display a number indicating that speaker I is busy.
) is converted into an analog signal by the DA converter 19 and output as an audio signal from the speaker of the audio output unit 20.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, it is possible to determine whether Kim Ri is the speaker without having to directly interact with him, and therefore, the intention of the speaker can be understood even from a remote location. You will be able to have a dialogue.

In the figure, 1-1 to l-n are identification code generation units; 2 is a multiplex part, 3 is a separation part, 4 is the microphone number display section, 5 is a loudspeaker, shows.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the principle configuration of the present invention, FIG. 2 is a diagram showing an example of the configuration of the transmitting/receiving device of the present invention, FIG. 3 is a diagram showing a time chart of the transmitting/receiving device according to the present invention, and FIG. 4 is a conventional diagram. 1 is a diagram showing a circuit configuration of an example transmitting/receiving device; FIG. (A>1fff section (C) (B1 communication section ≧14'?jl+zsSJtfjrnsi gijr-n tie 4 chart bt-TrlJ (A) ft1p +BJ ke signal secondary furnace difference receiving device 40 way ellipse') Tree Leap Figure 4

Claims (1)

[Claims] In an audio conference system that performs dialogue by transmitting and receiving from a remote location, the transmitting side includes an identification code generation unit that converts microphone numbers of speakers A to N into identification codes. (1-1
~1-n), and a multiplexing unit (2) that multiplexes and transmits the identification code with the voices of each speaker A to N, and furthermore, on the receiving side, the receiving side receives the received information sent from the multiplexing unit (2). a separation unit (3) that separates data into respective identification codes and audio signals corresponding to the speaker;
) is provided, which decodes the identification code separated by the microphone number display section (4) and displays it as a microphone number. An identification code addition circuit in an audio conference system, characterized in that the current speaker can be recognized by a listener.