JPH10304076A - Simultaneous command service system for private branch exchange - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately transmit the voices of a commander to a commanded person. SOLUTION: A comparison circuit 1 compares the input voice data 101 to 108 with each other and outputs the FAS(first active speaker) data 11, i.e., the identification data on the input voice data of the largest sound volume to a FAS integration circuit 2. The circuit 2 counts the number of times of the largest sound volume for the specific one of input voice data at every fixed time based on the data 11. A commander preference control part 30 of a TFAS (total first active speaker) decision circuit 3 counts up only the count value of the input voice data of a commander designated by a commander TS number 31 by a prescribed amount. Under such conditions, the count value received from the circuit 2 are compared with each other. The circuit 30 outputs the TFAS data 32 showing the input voice data of the largest count value to an output circuit 4. The circuit 4 outputs the input voice data of the data 32 to the output data other than those corresponding to the input voice data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a private branch exchange (PB)
The present invention relates to a simultaneous command service system for a private branch exchange that realizes a simultaneous command service which is one of the services of X).

[0002]

2. Description of the Related Art As one of services of a private branch exchange, there is a simultaneous command service. This simultaneous command service is 1
This service is based on the assumption that n pairs (n is an arbitrary number)
There are two types of realizing methods, a broadcast type and a mutual call type.
The broadcast type only distributes the commander's voice to n persons,
It can be easily realized by switching in the PBX. However, since the voice issued by the instructed person cannot be heard by the instructor, this is not a desirable state as the simultaneous instruction service.

On the other hand, in the mutual communication type, the voices of the instructor and the instructed person can communicate with each other, and a configuration of a telephone conference apparatus can be considered as a method of realizing this. There are various methods for the configuration of the telephone conference device. A typical example is N-
There are 1 addition method, maximum value control method, and maximum value + 1 addition method. Hereinafter, these methods will be described.

[0004] In the N-1 addition method, when there are N participants in a voice conference, the voices of all the participants are added, and when returning data to the speaker, the voice of the speaker is subtracted and then returned. In this method, a speaker of a certain speaker can hear the added voice of a participant other than himself / herself. Therefore, it is possible to use this method as a simultaneous command service, but the problem with this method itself is that since the added sound of all participants other than yourself can be heard, the sound sent to each telephone is However, it was difficult to increase the clarity in the voice control of the private branch exchange, such as the reflection from the telephone and the return.

[0005] The maximum value control method means that the voices of all the participants are sampled for a certain period of time, the magnitudes of the voices are compared, and the loudest speaker is determined to be the first speaker (TFAS: TOTA).
L FIRST ACTIVE SPEAKER), and distributes the voice to participants other than the first speaker. In this manner, while the first speaker is selected, the other participants become listeners. However, when this method is used for the simultaneous command service, the loudest speaker emitting at a certain time is selected as the TFAS. Emit a loud volume,
Or, if the volume of the commander was originally low, there was a problem that the command could not be heard.

[0006] Further, the maximum value + 1 addition method is to compare voice samples of a plurality of participants, determine the loudest participant and the next loudest participant, and convert these two voice sample signals. In this method, the sum is sent to the remaining participants. At this time, the voice sample is sent to the participant with the largest volume and the next loudest participant. However, in such a maximum value + 1 addition method, when the participant having the second highest volume is determined, the speakers are frequently replaced frequently, and as a result, the sound after addition sounds like noise. There is a problem that it is. Therefore,
Even if this is used as a simultaneous command service,
Since the loudest speaker is the commander, there was a similar problem.

[0007]

As described above, in order to realize the simultaneous command service method, simply applying a telephone conference device does not necessarily ensure that the voice of the commander is accurately transmitted to the commandee. However, there is a problem that the clarity is lacking.

In view of the above, there has been a demand for a method of realizing a service capable of accurately transmitting the voice of the instructor to the instructed person.

[0009]

The present invention employs the following structure to solve the above-mentioned problems. <Structure of Claim 1> In a private branch exchange simultaneous command service system for transmitting a voice of a commander to a plurality of commandees via a private branch exchange, a plurality of input voice data corresponding to the commander and the commandee are provided. , The loudest voice data is selected, and the instructor's voice data is preferentially selected as the loudest voice data, and the selected voice data is set as output voice data to the instructed person. A private branch exchange simultaneous command service system comprising a commander priority control unit.

<Explanation of Claim 1> In the invention of claim 1,
As a simultaneous command service system for a private branch exchange, a maximum value control method in a configuration of a telephone conference device is used. Here, the commander priority control unit gives priority to the input voice data of the commander and selects the voice data as the loudest voice data. In this case, as long as the input voice data of the instructor is given priority, the configuration of how to give priority to selection is not particularly limited.

According to the first aspect of the present invention, with this configuration, it is possible for the instructor to take advantage of the maximum value control method in which even the instructed person can make a voice to the instructor. It is possible to reliably transmit the voice to the instructed person. In addition, if the present invention is used as a telephone conference device, and, for example, the instructor is the chairperson, the present invention can be used as a telephone conference device giving priority to the chairperson.

[0012] According to a second aspect of the present invention, in the first aspect, a comparison circuit which compares all input audio data and outputs identification information of the audio data having the largest volume, and a maximum volume obtained by the comparison circuit. An integration circuit that counts the identification information of the audio data having a large value every fixed time, and a counter value of the instructor's audio data is counted up by a predetermined value in advance. A commander priority control section for selecting the largest voice data as output voice data to the instructed person.

<Explanation of Claim 2> The invention of claim 2 is configured such that the voice data of the instructor is preferentially selected as the loudest voice data, and a counter value corresponding to the voice data of the instructor is set in advance. It is designed to count up. That is, the commander priority control unit counts up the counter value corresponding to the voice data of the commander in advance, and in this state, compares the count value corresponding to each voice data, which indicates that the volume is the loudest. I do.
As a result, since the voice data of the instructor has been counted up by a certain value in advance, the voice data of the instructor is normally selected as the voice data having the highest volume.

<Structure of Claim 3> According to Claim 1, commander priority control for increasing the volume of a commander's voice data by a preset value and outputting the same among all input voice data. And a comparison circuit that compares all audio data output from the commander priority control unit and outputs identification information of the loudest audio data, and identification of the loudest audio data obtained by the comparison circuit An integrating circuit that counts information at regular intervals and a TFAS determining circuit that compares the counter value of the integrating circuit at regular intervals and selects the audio data having the largest counter value as output audio data to the instructed person. It is a simultaneous command service system for private branch exchanges, characterized in that it is provided.

<Explanation of Claim 3> The invention according to claim 3 is configured such that the voice data of the instructor is preferentially selected as the voice data having the highest volume, and the voice data to be compared by the comparison circuit is selected. The volume level of the voice data of the commander is increased in advance. As a result, usually, the voice data of the instructor is selected as the loudest voice data in the comparison circuit, and as a result, the TFAS determination circuit is also selected as the output voice data to the instructed person.

According to a fourth aspect of the present invention, there is provided a private branch exchange simultaneous command service system for transmitting voice of a commander to a plurality of commandees via a private branch exchange, wherein a plurality of input voices corresponding to the commander and the commandee are provided. Among the data, the loudest input voice data is selected, and when the commander is specified, the input voice data of this commander is selected as the second loudest input voice data. A simultaneous command service system for a private branch exchange, comprising a commander priority control unit that uses two input voice data as output voice data to a commandee.

<Explanation of Claim 4> In the invention of claim 4,
As a simultaneous instruction service system for a private branch exchange, a maximum value + 1 addition method in a configuration of a telephone conference device is used. Here, the commander priority control unit selects the input voice data of the commander as the speaker with the second highest volume. Therefore, there is an effect that the voice of the instructor is always output while taking advantage of the advantage of the maximum value + 1 addition method that the voice of the instructed person is also transmitted to the instructor. Also,
Since “+1” is fixed by the commander, there is no fear of noise or the like due to frequent switching of speakers. Furthermore, if the instructor is not specified, the function as a normal telephone conference device can be realized. Further, if the instructor is set as the chairperson, it can be used as a chairperson-priority telephone conference device, similarly to the inventions of claims 1 to 3.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings. << Example 1 >><Configuration> FIG. 1 is a configuration diagram showing Example 1 of a simultaneous command service system of a private branch exchange according to the present invention. The device shown in the figure comprises a comparison circuit 1, a FAS integration circuit 2, a TFAS determination circuit 3, and an output circuit 4. The comparison circuit 1 receives the input audio data 101 to 108,
Compare the volume between 1 and 108 and compare the FAS (FIRST ACTI
VE SPEAKER) is a functional unit that outputs data 11.
Here, the FAS data 11 is the input voice data 101
It is serial data having a flag indicating FAS in a time slot corresponding to input audio data having the loudest volume among time slots (TS) corresponding to.

The FAS integration circuit 2 has a counter for eight inputs, receives the FAS data 11 from the comparison circuit 1, counts the number of FASs for each input time slot, and integrates the count result corresponding to the time slot. This is a functional unit that outputs results 21 to 28.

The TFAS determining circuit 3 determines the TFAS data 3 based on the integration results 21 to 28 corresponding to the time slots.
2 and a commander priority control unit 30. The commander priority control unit 30 receives as input the integration results 21 to 28 from the FAS integration circuit 2 and the commander TS number 31 sent from the control unit of the private branch exchange (not shown). Priority processing is performed on the integration result to be performed, and the result is compared with other integration results to select a TS number to be a TFAS, and the number is set to T
This is a circuit having a function of outputting as FAS data 32. Specifically, a certain amount is counted up with respect to the counter value of the time slot corresponding to the instructor TS number.

The output circuit 4 receives the TFAS data 32 and the input voice data 101 to 108, and outputs the input voice data corresponding to the TFAS data 32 as voice data to the instructed person. That is, a path connection is made to the output data of the time slot not selected as the TFAS, while the audio of the old TFAS (TFASＴＦold TFAS) is inserted into the output data corresponding to the time slot selected as the TFAS, This is a circuit having a function of outputting them as output data 401 to 408. It should be noted that the old TFAS is a TFAS determination process performed by the TFAS determination circuit 3 at regular time intervals.
Speaker.

<Operation> First, when the instructor wants to give a simultaneous command to seven persons, when a predetermined special number of the telephone is pressed, the higher-level software of the private branch exchange recognizes the special number, and the predetermined number is determined. Call the called person's telephone. When all seven persons go off-hook, the input / output paths of the telephones of the instructor and the instructee are connected to this circuit, and at the same time, the number of the input / output path (any one of 0 to 7) provided to the instructor is instructed. This circuit is notified to the circuit as a sender TS number.
After performing the above initial settings, the simultaneous command is started.

As an example, a case where the input voice data 101 is a commander will be described. Input voices from the telephones of the instructor and the seven instructed persons are input as input voice data 101 to 108 to this circuit via the private branch exchange. At the same time, the control unit (not shown) of the private branch exchange notifies the TFAS determination circuit 3 that the commander is the input voice data 101 as the commander TS number 31. The input voice data is updated every 125 μS, but the data of the instructor TS number is continued until the simultaneous instruction ends.

First, the input voice data 101 to 108 are
The level of the sound volume is compared by the comparison circuit 1. This operation is performed, for example, every 125 μs. Then, the TS of the input audio data of the input audio data having the loudest volume
(Time slot) number and select its TS number as FA
The signal is sent to the S integration circuit 2. In the FAS integrator 2, the counter corresponding to the TS number output from the comparator 1 is incremented by +
Increase one count. This operation is performed every 125 μs.

Commander priority control unit 3 of TFAS determination circuit 3
0 indicates that the counter results of the FAS integrators 2 to 7 are read at certain time intervals (for example, 16 ms) and the magnitudes are compared. Extracted speakers. This speaker is TFA
It becomes S. Here, when comparing the counter values, the commander priority control unit 30 counts up the counter value corresponding to the commander TS number 31 by a certain fixed amount. By this operation, the instructor is normally preferentially determined to be TFAS when comparing the counter values. That is, in this case,
The data of the TS number corresponding to the input audio data 101 is T
Output as FAS data 32.

The TS number selected for the TFAS is sent to the output circuit 4, and the output circuit 4 uses the input audio data 101 to 108 corresponding to the input TS number as output data and outputs the TS numbers other than the TS selected for the TFAS. Connection to the output path. The output path corresponding to the TS selected as the TFAS connects the input audio data of the old TFAS to the output path. Therefore, the output (output data 401) to the TS selected as the TFAS is such that the input audio data of the old TFAS is transmitted and the remaining 7 data not selected as the TFAS are output.
For the user's output (output data 402 to 408), the input audio data 101 of the TS selected for TFAS is transmitted.

<Effects> According to the specific example 1 as described above,
In the maximum value control method, since the count value was previously counted up so that the instructor became the maximum value,
The voice of the commander is prioritized, and the voice of the commander is reliably transmitted from the commander to the commandee while taking advantage of the maximum value control method that the voice of the commander can be issued to the commander. be able to. Further, the simultaneous command service system of the private branch exchange of this specific example can be used as a telephone conference device. For example, if the instructor is the chairperson, it can be used as a telephone conference device with the chairman priority.

In the first embodiment, as a means for realizing the instructor priority control unit 30, the counter value is counted up by a fixed amount. Of the input voice data of the instructor among 101 to 108, the level of the sound volume may be increased by a certain amount. Also, TF
For the TS selected as the AS, other input audio data may be output instead of the old TFAS.

<< Specific Example 2 >> In the specific example 2, the maximum value of the telephone conference apparatus plus one is used, and the second speaker is specified as the instructor.

<Structure> FIG. 2 is a diagram showing a specific example 2 of the simultaneous command service system of the private branch exchange according to the present invention.

The apparatus shown in the figure comprises a comparison circuit 1, a FAS integration circuit 2, a TFAS determination circuit 3, a selector circuit 5, a PCM-linear conversion circuit 6, an addition circuit 7, a linear-PCM conversion circuit 8, and an output circuit 9.

The comparison circuit 1 is a circuit having a function unit for inputting the input audio data 101 to 108, comparing the volume of the data, and outputting the FAS data 11 as in the first embodiment. is there. The FAS integration circuit 2
S data 11 is input, and FAS is input for each input TS number.
Is counted, and the count result is integrated with the integration results 21 to 2
This is a circuit that outputs as 8.

The TFAS determination circuit 3 calculates the integration results 21 to 2
This is a circuit for comparing TFAS and TFAS + 1 by comparing the magnitudes of 8 with each other, and includes a commander priority control unit 30a. The commander priority control unit 30a inputs the integration results 21 to 28 and the commander TS number 31, outputs a TS number corresponding to the TFAS as TFAS / TS data 321, and outputs the TS number valid for the commander TS number 31. If it is a number (TS number included in the input audio data 101 to 108), the TS number is set to TFAS + 1 · TS data 322.
As a function. Also, if the commander TS number 31 is not valid data, a function of selecting the second largest TS number of the integration result following the TFAS and outputting the selected TS number as TFAS + 1 · TS data 322 is provided. .

The selector circuit 5 receives TFAS / TS data 321, TFAS + 1 · TS data 322, and input audio data 101 to 108, selects input audio data corresponding to the TFAS / TS data 321,
It is output as AS data 51, and similarly, TFAS + 1 · T
This is a circuit having a function of selecting input audio data corresponding to S data 322 and outputting it as TFAS + 1 data 52.

The PCM-to-linear conversion circuit 6 receives TFAS data 51 and TFAS + 1 data 52 as input, converts these two data from PCM coded data to linear data, and converts TFAS linear data 61 and TFAS data to linear data.
This is a functional unit that outputs +1 linear data 62.

The addition circuit 7 has a TFAS linear data 61
And TFAS + 1 linear data 62 as inputs, add these data, and output the result as an addition result 71.

The linear-PCM conversion circuit 8 calculates the addition result 7
1, TFAS linear data 61, and TFAS + 1 linear data 62 as input, perform PCM encoding conversion on these inputs, and obtain TFAS / PCM data 81 and TFAS
This is a functional unit that outputs + 1 · PCM data 82 and added PCM data 83.

The output circuit 9 outputs the TFAS / PCM data 8
1, TFAS + 1 · PCM data 82, and added PCM
The data 83 is input, and output data 901 to 908 are output. That is, the output data to the speaker corresponding to TFAS + 1 includes TFAS + 1 · PCM data 8
2 is a circuit having a function of outputting TFAS / PCM data 81 to output data corresponding to TFAS data 51 and outputting addition PCM data 83 to other output data.

<Operation> First, when the instructor wants to give a simultaneous command to seven persons, the starting method is the same as in the first embodiment. Further, the comparison circuit 1 and the FAS integration circuit 2 perform the same operation as in the first embodiment. That is, the input voice data 101 to 108 input from the private branch exchange are compared in volume by the comparison circuit 1 and the TS number that has become maximum is the FAS data 11.
Is input to the FAS integration circuit 2. The FAS integrator 2 counts the number of times that the FAS occurs every fixed time TS, and outputs the integration results 21 to 28 as TFAS.
Notify the decision circuit 3. Up to this point, the operation is the same as in the first embodiment.

In the TFAS determination circuit 3, the integration results 21 to
In addition to 28, the instructor TS number 31 is input. TFA
If the content of the instructor TS number 31 is a valid value (1 to 8), the S determination circuit 3 determines that TS value as TFAS + 1 · TS
The data is output to the selector circuit 5 and the output circuit 9 as data 322. If the data is not a valid value, two of the integration results 21 to 28 are output.
The next largest TS number is output. Also, TFAS
In the decision circuit 3, if the content of the instructor TS number 31 is a valid value (1 to 8), the TS number having the largest counter value among the integration results 21 to 28 excluding the integration result corresponding to the TS number As TFAS / TS data 321
Output to the selector circuit 5 and the output circuit 9. That is, TFA
S · TS data 321 ≠ TFAS + 1 · TS data 32
It becomes 2.

The selector circuit 5 selects the input audio data corresponding to the TFAS / TS data 321 and outputs the selected data as TFAS data 51.
Output as S + 1 data 52.

The PCM-to-linear conversion circuit 6, which receives the TFAS data 51 and the TFAS + 1 data 52, decompresses the two data to convert the PCM code into linear data, and converts the TFAS linear data 61 and TFAS + 1.
The linear data 62 is output.

TFAS linear data 61 and TFAS + 1
The adder circuit 7 which receives the linear data 62 as an input performs voice addition on each of the two data. The addition result data is output as the addition result 71.

The linear-PCM conversion circuit 8 receives the addition result 71, the TFAS linear data 61,
The FAS + 1 linear data 62 and the FAS + 1 linear data 62 are compressed again according to the PCM coding rule, and the respective outputs are added to the added PCM data 83, TFAS / PCM data 81, and TFAS + 1.
Output to the output circuit 9 as PCM data 82.

The output circuit 9 outputs TFAS + 1 · PCM data 82 to output data corresponding to the TFAS data 51.
Is output, and TFAS / PCM data 81 is output as output data corresponding to the TFAS + 1 data 52,
Further, additional PCM data 83 is included in other output data.
Is output.

Therefore, when the instructor TS number 31 is valid, the instructor can hear the voice of the instructor selected as TFAS, and the instructor selected as TFAS can hear the voice of the instructor. Can be heard. In addition, the remaining six instructed persons not selected for TFAS include the voice of the instructor and T
The voice to which the voice of the instructed person selected by the FAS is added will be heard.

On the other hand, if the instructor TS number 31 is not a valid value, the same operation as a normal telephone conference by the maximum value + 1 addition method is performed. That is, the speaker selected as the TFAS will hear the voice of the speaker with the second highest volume, the second speaker will hear the voice emitted by the TFAS, and the other participants will hear The result of adding the TFAS and the voice of the second speaker will be heard.

<Effects> As described above, according to the specific example 2, the voice of the commander is always output while taking advantage of the maximum value + 1 addition method that the voice of the commandee is transmitted to the commander. It has the effect of being done. Further, since “+1” is fixed by the commander, there is no possibility of noise or the like due to frequent switching of speakers. Also in this specific example 2, if a valid value is not input as the instructor TS number 31, a function as a normal telephone conference apparatus can be realized. On the other hand, if the instructor is set as the chair, as in the first embodiment, there is an effect that the instructor can be used as a telephone conference apparatus with the priority of the chair.

<< Explanation of Usage Mode >> In the above specific examples 1 and 2, eight persons including the instructor are explained, but the number is not limited to this number. In the specific examples 1 and 2, the inputs of the comparison circuit 1 and the outputs of the output circuits 4 and 9 are connected in parallel by eight persons.
It may be a serial connection. Although not specifically mentioned in the above specific examples 1 and 2, encoding / decoding of audio data is performed by μ-LAW, A-LAW.
And so on. The input audio data and the output audio data may be digital or analog.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a specific example 1 of a simultaneous command service system of a private branch exchange according to the present invention.

FIG. 2 is a configuration diagram of Example 2 of the simultaneous command service system of the private branch exchange according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Comparison circuit 2 FAS integration circuit 3 TFAS determination circuit 4 Output circuit 30, 30a Commander priority control part 31 Commander TS number 32 TFAS data 101-108 Input audio data 321 TFAS / TS data 322 TFAS + 1 · TS data 401-408, 901-908 output data

Claims (4)

[Claims] 1. A simultaneous command service system for a private branch exchange that transmits a voice of a commander to a plurality of commandees via a private branch exchange, wherein, among a plurality of input voice data corresponding to the commander and the commandee, In addition to selecting the loudest voice data, as the loudest voice data, the voice data of the instructor is preferentially selected, and the selected voice data is used as output voice data to the instructed person. A simultaneous command service system for a private branch exchange, comprising a commander priority control unit. 2. A comparison circuit according to claim 1, wherein the comparison circuit compares all input audio data and outputs identification information of the audio data having the highest volume, and the audio data having the highest volume obtained by the comparison circuit. An integration circuit that counts the identification information of the instructor at regular intervals, and a counter value is counted up by a predetermined value in advance for the voice data of the instructor, and in this state, the counter value of the integration circuit is the largest. And a commander priority control unit for selecting the selected voice data as output voice data to the commandee. 3. The commander priority control unit according to claim 1, wherein, among all input voice data, a commander priority control unit that raises the volume of the voice data of the commander by a preset value and outputs the same. A comparison circuit that compares all the audio data output from the user priority control unit and outputs identification information of the loudest audio data; and a constant identification information of the loudest audio data obtained by the comparison circuit. An integration circuit that counts for each time; and a TFAS determination circuit that compares the counter value of the integration circuit for each fixed time and selects the audio data having the largest counter value as output audio data to the instructed person. A private branch exchange simultaneous command service system. 4. A simultaneous command service system for a private branch exchange that transmits a voice of a commander to a plurality of commandees via a private branch exchange, wherein, among a plurality of input voice data corresponding to the commander and the commandee, When the loudest input voice data is selected and the commander is specified, the input voice data of the commander is selected as the second loudest input voice data, and these two input voice data are selected. A private branch exchange simultaneous command service system, comprising: a commander priority control section for setting the output voice data to the commandee.