SU1570025A1 - Device for loud-speaking conference communication - Google Patents

Abstract

This invention relates to a production communication speaker system. The goal is to increase the number of participants in the conference. The device connects the subscriber units 1 via the switching unit 2 to telephone and telegraph lines. The connection control of the subscriber units 1 in the device is performed by the dispatcher unit 24 and the manager unit 23 through the control unit 5 via the switch 15, adders 16 and the matching unit 13. The receiving unit 4 and the transmitting unit 3 control the operation modes of the subscriber units 1. 6 hp f-ly, 7 ill.

Description

The invention relates to the field of radio engineering and communications and can be used in systems of public address communication.

The aim of the invention is to increase the number of conference participants.

Figure 1 shows the structural electrical circuit of the device for the loudspeaker of the terminal; Fig. 2 is a structural electrical block diagram of a subscriber; FIG. 3 shows a structural electrical circuit of a switching unit; 4 is a structural electrical circuit of a transmission unit; on Lig.5 - structural electrical circuit of the receiving unit; in FIG. 6 is a structural electrical block diagram of a manager; 7 is a structural electrical block diagram of the controller

The loudspeaker conference device contains N blocks 1 subscribers, block 2 switching lines, block 3 transmission, block 4 receiving, block 5 of the control containing block 6 conjugation, decoder 7, keyboard 8, block 9 of memory and register 10 , block 11 compensation containing echo canceller 12, block 13 matching, block 14. auditions, first switch 15, M adders 16, generator 17 and second switch 18, first to fourth adders 19-22, head unit 23 and block 24 of dispatcher; blo

1 subscriber ki contain shaper 25 command Speech, shaper 26 command Forgive words, element 27, listening unit 28, information transfer unit 29, command receiver 30 Speech, switch unit 31, line switching signal receiver 32, switch 33 lines, the telegraph unit 34, the telephone set 35 and the indicator 36, the line switching unit 2 comprises a telephone line switching unit 37, a telegraph line switching unit 38, a register 39, a memory unit 40, an interchange unit 41 and a decoder 42; transmission unit 3 comprises a transformer unit 43, an interaction signal receiving unit 44, a transmission amplifier unit 4-5, first 46 and second 47 switches, register 48, multiplexer 49, memory block 50, interface block 51, and decoder 52; Soda ™ - reception unit 4, burned down a block of 53 transformers, an interaction signal transmission block 54,

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amplifier unit 55, reception, first 56 and second 57 switches, multiplexer 58, register 59, memory block 60, interface block 61, and decoder 62; the manager unit 23 contains the interface unit 63, the transmission unit 64, information, the listening unit 65, the information displaying unit 66 and the service communication unit 67} the dispatcher unit 24 contains the listening unit 68, the register 69, the interface unit 70, the information displaying unit 71 , hub 72, first 73 and second 74 switches, service communication unit 75 and negotiation unit 76. (

The device works as follows.

In the initial state, in the absence of a meeting, the first and second inputs / outputs of blocks 1 are connected in block 2, respectively, to N telephone and N telegraph inputs and outputs connected to the device inputs and further to the telephone and telegraph station, respectively. At the same time, inside blocks 1, the indicated first and second inputs and outputs are connected to telephone 35 and telegraph 34 devices. In this case, the subscribers are provided with a usual telephone and telegraph connection.

In preparation for the meeting, the dispatcher dials on the keyboard 8 phone numbers of the participants in the meeting, which are written into block 9 using the decoder 7. In addition, the dispatcher dials the command code for connecting the subscribers to the meeting. After receiving the specified command, the decoder 7, in accordance with the instruction retrieved from block 9, establishes the required signals at the third and fourth outputs of the 1 O register using the information and control buses, which arrive at the fourth and fifth inputs of the block 24.

In block 24, these signals are converted into a serial code and from the second, third and fourth outputs go to the control inputs of blocks 3, 2 and 4, respectively. As a result, in block 2, the subscriber inputs-outputs of the transmission and reception of the participants in the meeting are turned off from the corresponding telephone and telegraph inputs-outputs of unit 2, and connecting them to the corresponding

I / O transmission and reception. In this case, the lines of the participants in the meeting fall on the corresponding inputs / outputs of blocks 3 and 4, and the lines of the subscribers who do not participate in the meeting remain in their original state. In addition, in block 4, the team about the transfer of blocks 1 participating in the meeting to the Meeting mode is normalized.

The said command as a direct current signal comes from the inputs-outputs of block 4 to the second inputs-outputs of blocks 1 participating in the meeting at the midpoints of the receiving line, namely two-wire lines j connecting the inputs-outputs of block 4 with the second inputs the outputs of the blocks I through the inputs-outputs of the reception and subscriber inputs-outputs of the reception of block 2. At the same time, the potential of the middle points of the transmission lines, i.e. The two-wire lines connecting the inputs-outputs of block 3 with the first inputs-outputs of block 1 through the transmission inputs-outputs and subscriber inputs-outputs of the transmission unit 2 are kept constant. The criterion for transferring blocks 1 to the Meeting mode is the presence of a potential difference between the middle points of the transmission and reception lines and the absence of a potential difference between the own wires of each line. The indicated state of the lines is impossible during their operation as telephone and telegraph lines, which excludes the false perception of this team by blocks 1 that do not participate in the meeting. After transferring blocks 1 to the Meeting mode, the signal to the midpoint of the receiving line is stopped, while a constant potential difference is applied to the wires of the specified line, while the presence of a constant potential difference is a criterion for block retention in the Meeting mode throughout the meeting .

In the specified mode in. In blocks 1, the first and second inputs / outputs are disconnected from the telephone 35 and telegraph 34. devices and are connected to equipment that listens to voice information received at the first input / output, Formation of speech information and transmitting it to the second input / output , reception and indication of commands from the second input-output, -a also the formation of commands and,

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their transfer to the midpoint of the line connected to the first input-output.

In block 3, the signal of the active subscriber arriving at the first input of block 3 from block 4 on the transmission lines of the subscribers participating in the meeting are prepared using the first switch 4. This allows passive callers to listen to other (active) subscribers during the meeting. Besides

, moreover, all the participants in the meeting listen to the speech signal of the head, coming from the output of block 23 through the first adder 19 to the third input of block 3 and further in the line

0 subscriber transmissions, mine the first switch 46. At the same time, subscribers listen to the manager's speech signal regardless of whether or not their transmission lines are connected to

5 to the first input of block 3. Any subscriber may be given the opportunity to speak, for which the dispatcher dials on the keyboard 8 the number of that subscriber, which is written into block 9 using decoder 7, as well as the command code with the specified subscriber transferred to active mode.

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After receiving the command, the decoder 7, in accordance with the instruction extracted from block 9, establishes the required signals at the first to fourth outputs of the register 10 using information and control pnc. These signals are received at the second and third inputs of the block 28, as well as the fourth and Fifth inputs of block 24, where, after conversion, are used to display information in block 71 about the details of the subscriber who is allowed to speak. In addition, in block 24, these signals are used to generate a control command received in serial code from the fourth output to the control input of block 4, in which the switching of the receiving line to the first output of block 4 is prepared and, in addition, a transfer command is generated of the required block 1 to the active mode, which, in the form of a replenishment, is fed to the receiving line of this subscriber, arriving at the corresponding input-output of block 4. In block 1,

This triggers a warning of vocalization.

In order to speak, the subscriber, luchivrty razvorenie, lifts the micro-phone on handset or presses the microphone button, which causes the Introduction command in block 25, which in the form of a direct current on the midpoint of the transmission line comes from the first input-output of block 1, through the subscriber input-output of the transmission and input-output of the transmission of block 2 to the input-output of block 3 and then through the output of the latter to the corresponding input of block 4, respectively. The first output of block 4, and in block 3, disconnecting the subscriber from the first input of the transmission line to prevent the signal from the reception line from penetrating into the transmission line of the same subscriber, which can lead to self-excitation.

In addition, in blocks 3 and 4, the signals on the performance of these operations are received in normal mode, which in a sequential code come from the command output of block 3 and from the third output of block 4 to the first and second inputs of the interface block 6, block 5, where they are converted to the parallel code and using the decoder 7 according to the instructions extracted from the cells of block 9 are written into the free cells of the specified block, after which the decoder 7 according to the instructions extracted from the block, Eg performs a validation of the received information ( ovpadeni local phone number that performance was allowed and switched in blocks 3 and 4) in the case of a positive result

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transmission is similar to the command

 You out

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but another polarity.

The specified command is processed in block 3, as a result of which a new command is formed with the indication of the number of the requesting word of block 1, which is transmitted as a sequential code from the command output of block 3 to the first input of block 6, block 5, which causes Signals on the first to fourth outputs of the register 10. These signals are sent to the second and third inputs of the imaging unit 26, as well as to the fourth and fifth inputs of the unit 24, and are used in these blocks to display information about the requesting word unit 1.

For the manager and dispatcher to listen to the subscriber's speech, the speech signal of the speaker subscriber comes from the first output of block 4 through the second adder 20 to the first input of block 23 and the second input of block 24, while in the head block 23 the speaker 65 is listened to by the block 65, and the dispatcher can listen to the callers using the micro-phone headset of their negotiation unit 76.

To listen to the speech signal manager, the manager, who may have information relating directly to the controller, for example, instructing to give a word to one or another subscriber, is provided in the controller unit 24 by listening to the manager unit 68.

The dispatcher has the possibility of office telephone communication with any subscriber participating in the meeting, for which he dials on number 8

the check sets the required signal., the desired subscriber, which is written into block 9 with the help of the decoder 7, as well as the conditional command code. After receiving the command, the decoder 7, in accordance with the instruction extracted from block 9, establishes using the information and control buses the required signals at the third and fourth outputs of register 0, which go to the fourth and fifth inputs of the controller 24 and after conversion from the second and the fourth outputs of the latter in the serial code are fed to the control inputs of block 3 and block 4. while in blocks

The first to fourth outputs of the register 10 are fed to the second and third inputs of unit 23, as well as the fourth and fifth inputs of unit 24, where, after conversion, they are used to display information about the details of the speaker. Each subscriber has the opportunity to send a command to the manager and dispatcher. I ask for the word that is triggered by pressing the corresponding button in block 26 and arrives at the input-output of block 3 in the form of sending a direct current along the midpoint of the line

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With the decoder 7, it is written into block 9, as well as the conditional instruction code. After receiving the command, the decoder 7, in accordance with the instruction extracted from block 9, establishes using the information and control buses the required signals at the third and fourth outputs of register 0, which go to the fourth and fifth inputs of the controller 24 and after conversion from the second and the fourth outputs of the latter in the serial code are fed to the control inputs of block 3 and block 4. while in blocks

3 and 4, the transmitting and, respectively, receiving lines of the subscriber, with which the connection is supposed to be established, are disconnected from the first input and the first output, respectively. Thereafter, these lines using the second switch 47, included in unit 3, respectively, and the second switch 57, included in unit 4, are switched to the first output and the third input of the block 24 and further to the specified unit through the second switch 74 and the first switch 73 to the negotiation unit 7 6.

The dispatcher has the ability to include in the meeting participants PBX subscribers who are connected via M two-wire switched lines to M line inputs-outputs of the device. For this, the dispatcher communicates alternately with each of the specified PBX subscribers through one of the free lines with the help of a telephone hub 72, which is part of block 24, and for each subscriber after the verbal message that he is connected to

to the meeting, the dispatcher using the tasta-30 to the nentu of the PBX, the head of the voice of the communion 8, in the same way as it was described in the voucher, enters into block 9 the information about the specified subscriber's details, the order number of the lines through which it is connected, and the conditional 35 code teams. After receiving the specified command, the descriptor 7 is according to the instructions extracted from the block

9, setting the output relays the signal on the seventh gistra 10, which causes the second switch 2 to switch 18 of this two-wire line to the corresponding input-output of the unit 13, in which the direct-current play circuit is closed, which causes the line to be held in case of a hub 72 to another line for communication with the following PBX subscriber

In addition to the Hold function, block 13 provides a transition from a two-wire to a four-wire line, with the signals coming from the line coming from the output of block 3, whose number matches the line number, to the corresponding input of block 14, and signal .5

ly, transmitted in line, come from the output of the corresponding adder 16 to the input of block 13, the number of which coincides with the number of the line.

In the initial state, after connecting, the PBX subscribers are passive and listen to the meeting, namely, the speaker’s signals to the manager, which are summed up in the fourth adder 22 and, having passed through the corresponding adders 16, arrive at the corresponding inputs of the unit 13 and further to subscribers of automatic telephone exchange. In this case, the signal of the speaker subscriber. This PBX enters the second input of the fourth adder 22 via the second adder 20. The PBX subscriber, who wants to get the word, informs the dispatcher by voice using block 14, indicating his details. After receiving the data signal, the dispatcher, using the trait 9, enters the specified subscriber's details into block 9, then dials the conditional command code, according to which the decoder 7, according to the instructions extracted from block 9, sets the first and fourth outputs of the register J About the required signals that cause in blocks 23 and 24 the display of information about the requesting word to the subscriber in blocks 66 and 71.

In the case of the word abo5

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tells the dispatcher about it. The latter using the keyboard 8 enters the details of the subscriber and the conditional code of the command, by which the decoder 7 according to the instructions extracted from block 9, sets the required signals on the first to seventh outputs of register 10. The signals on the first and second outputs are used to display information on the speaker of the PBX in block 23, and on the third and fourth, to display similar information in block 24.

The signal present at the fifth output of the L0 register sets the first switch 15 to a position in which the output of the generator 17 is connected to the first input of one of the adders 16, the number of which matches the number of the line whose subscriber is provided with the word. The signal present at the sixth output of the register 10 includes a generator 17, at the output of which a conditional sound signal is generated, which through the first switch 15 and one of the above adders 16 enters the PBX subscriber line and is perceived by the latter as permission to speak. After

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This signal, which is present at the seventh output of register 10, changes the state of the second switch 18, in which the line of the speaker of the PBX speaker switches from the input-output number of which coincides with the line number to the additional input-output connected to the corresponding input-output of the block 13, In the indicated JQ scheme, signals coming from the speaker subscriber arrive at the output and then to the second input, s kkompensat-. 12. In turn, the signals from the second output of the echo canceller 15, 12, are transmitted to the speaker of the PBX via the auxiliary input of the unit 13.

For non-PBX subscribers, the connections in the second switch 18-20 are unchanged.

Speaker ATS has the opportunity to listen to the speech of the head and one of the subscribers,

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To transfer the speaker of the PBX subscriber into the passive mode after the end of his speech or in the case of giving the word to another PBX subscriber, the dispatcher using the keyboard 8 enters the details of the new subscriber, then enters the command code. If all subscribers are transferred to the passive mode, only the command code is entered, and the decoder 7, according to the instructions extracted from block 9, sets the corresponding signals on the first to seventh outputs of the register 10 in the same way as described above. The signals on the - first - fourth outputs of register 10 are used to display with the manager and the dispatcher information about the end of the performance of one PBX subscriber and the start of the performance of another PBX subscriber.

The signal from the seventh output of the register 10 sets the second switch 18 to the state in which all the subscribers of the meeting, the voice signals of the PBX are passive.

the banks of which are added in the third Signal from the nth output of the register 10

adder 21, and from the output of the latter sets the first switch 15 to

arrive at the first input of echo cancellation - the position corresponding to the protrusion 12 and then from its second output

through block 13 to the PBX subscriber. thirty

Due to the non-ideal of the uncoupling at the transition from the four-wire to the two-wire line in block 13, a part of the signal, called an echo signal, penetrates from input to output, 35

When a subscriber speaks, the sum of his speech signal and echo comes from the output of block 13 to the second input of the echo canceller 12, in which the subtraction of the specified sum-jg takes place. The outputs of switch 33 are connected to the fourth and third outputs respectively and then to the telephone 35 and telegraph 34 respectively .

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Previously to the subscriber, after which the signal coming from the sixth output of register 10, generator 17 Generates a conditional sound signal about the end of the performance, which goes similar to that described above to the PBX subscriber whose performance is over.

Blocks 1 work as follows.

In the initial state, in the absence of a meeting of the fifth and sixth entrances of the incoming PBX subscriber, cleared of echo, through the first adder

19 enter the reception line of the subscribers participating in the meeting similarly to the signal of the manager, mine the switching elements of unit 3. In addition, the voice signal of the speaker of the PBX is added to the second adder

20 with the signal of the local speaker and the bag of the indicated signals is fed to the first input of block 23 and the second input of block 24. Thus, providing 50

In order to switch the blocks to the Meeting mode, the midpoint of the receiving line arriving at the sixth input / output switch 33 and the second input / output of the line switching receiver 30 receives the sending of direct current. At the same time, the potential of the midpoint of the transmission line arriving at the fifth input / output of the switch 33 and at the first input of the receiver 32 is maintained at the same time speakingly speaking. The receiver 32 of the receiver of the PBX receiver, the local speaker stands for the specified package and forms

the subscriber and the manager, who signaled at his exit, who is being listened to by all other subscribers, doesn’t have the state of the switch 33 such

including PBX subscribers, abrasive that the fifth and sixth inputs are 5

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To transfer the speaker of the PBX subscriber into the passive mode after the end of his speech or in the case of giving the word to another PBX subscriber, the dispatcher using the keyboard 8 enters the details of the new subscriber, then enters the command code. If all subscribers are transferred to the passive mode, only the command code is entered, and the decoder 7, according to the instructions extracted from block 9, sets the corresponding signals on the first to seventh outputs of the register 10 in the same way as described above. The signals on the - first - fourth outputs of register 10 are used to display with the manager and the dispatcher information about the end of the performance of one PBX subscriber and the start of the performance of another PBX subscriber.

The signal from the seventh output of register 10 sets the second switch 18 to a state in which all subscriber outputs of switch 33 are switched to the previously switched subscriber, and then the signals from the sixth output of register 10 generate oscillator 17. to the subscriber of the PBX, whose performance is over.

Blocks 1 work as follows.

In the initial state, in the absence of the meeting, the fifth and sixth inputs

In order to switch the blocks to the Meeting mode, the midpoint of the receiving line arriving at the sixth input / output switch 33 and the second input / output of the line switching receiver 30 receives the sending of direct current. At the same time, the potential of the midpoint of the transmission line arriving at the fifth input / output switch 33 and at the first input of receiver 32, supports the inputs of the latter being disconnected respectively from the telephone 35 and telegraph 34 devices and connected respectively to the first and second input / outputs of the block 31. JTocne of the termination of the parcel at the midpoint of the receiving line on the wires of the specified line appears potential difference, holding the signal at the output of the receiver JQ nick 32. Block 31 performs galvanic isolation of the output element And 27 of the input block 2 8, the output of the unit 29 and the input of the receiver 30 from the transmission and reception lines, as well as the separation of voice 15 signals and commands transmitted with the aid of dc packets.

To send a command to the dispatcher, I ask the subscriber to press the corresponding key located in the 20 shaper 25, and a signal arrives at its output, coming through the block 31 to the midpoint of the transmission line and then to the dispatcher. In order to allow the subscriber to speak from the dispatcher 25, a command is received in the form of a potential polarity reversal on the reception line arriving at the sixth input-output switch 33, which causes the signal at the second output 30 of block 31, which in the receiver 30 is evaluated by sign and level, a positive result (the signal level exceeds a certain threshold value at the first and second 35 outputs of the receiver 30, signals are generated, the first of which prepares the response of element 27, and the second causes the indicator 36 to glow.

To form the Speech 40 command, the subscriber presses the corresponding key located in the shaper 25, and at its output there appears a signal arriving at the first input: element 27, from whose output the signal 45 passes through the first input of block 31 to the midpoint of the transmission line and on to the dispatcher.

The speech signal of the subscriber during a speech comes from the output of the information transfer unit 29 through the third input and the second input / output of the block 31, the second and sixth inputs / outputs of the switch 33 to the receiving line and further to the block 4 of the receive .. 55

Listening to the meeting is carried out by the subscriber using block 28, the input of which the signal comes from. transmission lines through the fifth and first

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the inputs-outputs of the switch 33, the first input-output and the first output of the block 31.

Block 2 works as follows.

In the initial state, in the absence of a meeting, the subscriber inputs-outputs of the transmission unit 31, the subscriber inputs-outputs of the reception unit 38 are connected, respectively, to the telephone and telegraph inputs-outputs of the specified units.

In order to switch subscribers into the Meeting mode, a command is received at the control input of block 41 in the serial code, including the numbers of the subscribers who are to be connected to the meeting. This command is converted in the block 41 of the conjugation into a parallel code, after which the decoder 42, using the information and control buses according to the instruction extracted from block 40, writes the numbers of the subscribers to be included in the meeting into the free cells of block 40 and sets the corresponding signals on the first and second the outputs of the register 38. These signals are received respectively at the control inputs of blocks 37 and 38 and provide, in the specified schemes for the subscribers connected to the meeting, the connection of the inputs-outputs with the subscriber inputs Exit. In this case, the telephone and, respectively, telegraph inputs / outputs of the said blocks are turned off. To disconnect subscribers from the meeting, a corresponding command is received at the control input of block 41, which causes the signals on the first and second outputs of the register 29 to change, while the switching of the circuits in blocks 37 and 38 returns to the initial one.

Block 3 works as follows.

In preparation for the meeting, the command for transferring the required subscribers to the Meeting mode and the numbers of these subscribers is received in successive code at the entrance of the block 51.

The decoder 52 perceives the specified command and using the control and information bus according to the instruction retrieved from block 50, writes the numbers of the specified subscribers coming in parallel code to the information bus from the output of block 51 in the free cells of block 50. After performing this operation the decoder 52 also with the help of the control and information bus according to the instruction extracted from block 50, establishes

the required signals at the first output of register 48, which arrive at the control input of the first switch 46 and in the latter call the connection of the transmission lines of the participants participating in the meeting to the first input of block 3.

During the meeting, the decoder 52 according to the instructions retrieved from block 50, periodically changes the state of multiplexer 49 to the input of which the signals from the outputs of block 44 are input. The multiplexer 49 provides for a periodic sequential supply of these signals coming from each subscriber, on the information bus, with which they are read by the decoder 52 and analyzed for the presence of the command in them, Please word or Speech.

If one of the indicated commands is present, the decoder 52 generates an information signal with indication of the subscriber number and type of command, which with the help of the information bus enters the parallel code to the input-output of block 51 and from the output of the last in the sequential code to the command output of block 3 .

The subscriber's listening, for example, the first, the course of the meeting is carried out along the following circuit: the first input of block 3, the input and first output of the first switch 46, the first input and first output of block 45, the first input and first input-output of block 43, the first input-output of block 3 and further to the first subscriber,

To provide the dispatcher's conversation with any subscriber to the input of block 51, the corresponding command and number of the subscriber arrive in a sequential code. In this case, operations similar to those written above occur, as a result of which the signal at the first output of register 48 disappears and a signal appears at its second output, which causes the transfer of the specified subscriber in the first switch 46 from the first input of unit 3 to disconnect and connect this line in the second switch 47 to the second input of block 3.

The dispatcher’s conversation with the subscriber, for example, the first occurs along the circuit: the second input of the unit 3, the input and the first output of the second switch 47, the first input and the first output of the block 45, the first

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input and the first input-output unit 43 and further to the first subscriber.

During the meeting, the subscriber, for example, the first, listens to the manager's statement on the circuit: the third input of unit 3, the manager's input and the first exit of unit 45, the first input and the first output of unit 43 and further to the first subscriber.

Block 4 works as follows.

In preparation for the meeting, the control input of block 4 in the sequential code receives information containing the numbers of the subscribers who are to be connected to the meeting and the conditional command code. The decoder 62, according to the instruction retrieved from block 60 using the control and information buses, writes the specified subscriber numbers converted by the block 61 to the parallel code into the free cells of the block 60. After receiving the conditional command code, for example, about connecting the first subscriber to the meeting, the decoder 62 according to the instruction retrieved from block 60, reads the information about the connected subscribers, converts it into the Form necessary to control the block 54 and, using the control and information bus, writes it to register 59. On the third The output of the register 59 is set to a signal that ensures the formation by the block 52 of sending a direct current coming from the first output of the specified block through the block 53 to the middle point of the transmission line of the first subscriber.

At a certain time interval determined by the instruction recorded in block 60 and necessary for triggering the circuits in blocks 1, the decoder 62 performs operations similar to those described above and changes the state of the third output of register 59, while in block 54 a signal is generated direct current, coming from its first output through block 53 to the wires of the first subscriber's receiving line, between which a constant potential difference is established.

In order to provide a word to some subscriber, for example, the first, the corresponding command containing the conditional code and number of the required subscriber is sent to the input of block 61, and the decoder 62 performs operations similar to those described above in

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the result of which is the number of the subscriber being transferred to the active mode to the free cells of the block 60, and the state of the third output of the register 59 changes, which leads to a reversal of the potentials on the receiving line of the subscriber. At the same time, the decoder 62 according to the instructions extracted from block 60 by means of a controlled bus periodically changes the state of multiplexer 58, to the inputs of which signals are received coming from the corresponding outputs of block 3. Multiplexer 58 provides a periodic series of specified signals, each from which is associated with a particular subscriber, to the information bus from which they are read by the decoder 62 and are analyzed for the presence of the Speech command. When a specified command is detected, decoder 62 compares the number of the subscriber from whom it came in with the number of the subscriber who was given the word. When the compared numbers match, the descrambler 62 changes the state of the first output of the register 59 using the control and information bus, as a result of which the subscriber’s receiving line, which was given the floor, is connected to the first output of the block 4 in the first switch 56. In addition The decoder 62 generates an information signal indicating the number of the subscriber who, using the information bus, enters the parallel code to the input-output of block 61 and -c to the output of the latter in the serial code to the third output d block 4.

The speech signal from the speaker, for example, the first subscriber, to other subscribers, the dispatcher and the meeting manager goes through the following chain: the first subscriber's reception line, first input-output of block 4, first input-output and first output of block 53, first input and first output of block 65 , - the first input and output of the first switch 56, the first output of block 4 and beyond. on the transmission line of other subscribers to the dispatcher and the meeting manager.

To provide the dispatcher's conversation with any subscriber to the input of block 61, the corresponding command and number of the subscriber arrive in a sequential code. In this case, the decoder 62 performs operations similar to

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described above, as a result of which the signal disappears at the pearl output of register 59 and a signal appears at its second output, which causes the reception line of the specified subscriber in the first switch 56 to disconnect from the first output of block 4 and connect this line in the second switch 57 to the second the output of block 4. Talk subscriber0

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that, for example the first, with the dispatcher. carried out on a chain: the reception line of the first subscriber, the first input-output of block 4, the first input-output and first output of block 53, the first input and first output of block 55, the first input and output of the second switch 57, the second output of block 4 and further to to the dispatcher.

Block 26 operates as follows.

During the meeting, the manager, using block 65, listens loudly to the speakers, while using block 69, by transmitting voice signals, manages the meeting.

In the course of the meeting, the signals to the second and third inputs of the block 23 in the parallel cluster are for the block 63, respectively, control and informational. The control signals determine at which output of the block 63 the signal and its moments of occurrence should appear. Information signals determine the content of the signals generated by block 63. The latter converts the information signals intended for its first and second outputs into signals supplied to block 66, which respectively display the numbers and other details of the speakers and the subscriber who have the word proxy. If it is necessary to establish a service connection with the dispatcher, the supervisor removes the handset included in block 67. After the corresponding operations are performed by the dispatcher, a talking circuit is formed that passes through the input-output of block 23 and the input-output of block 67. When the dispatcher calls the manager block 67 receives inductor call, which causes in this scheme the formation of an acoustic signal. After the head of the handset is removed, the DC circuit in the line entering the input / output of the block is closed.

67, the inductor call is terminated and a conversational circuit is formed, similar to that described above.

Block 24, the dispatcher works as follows.

When conducting a meeting, the dispatcher using the listening unit 68 performs a loud gaze listening to the manager's speech, in which there may be an insight relating to the dispatcher, for example, about giving the word to a subscriber. At the same time, the dispatcher has the opportunity to listen to the headphones included in the negotiation unit 76, the performance of subscribers, for which at the first output

If it is necessary to establish service communication with the manager after the dispatcher has entered, using keyboard 8 of block 5, the required command code to the fourth and fifth block inputs

the third outputs of the register 69, while changing the state of the first and

In the initial register 69, the control signal is present in the initial state, 24 dispatchers are supplied to the first control signal corresponding to the control input, as a result of which the gauge 73, the output of which switches the state of the first, second, and turns to the first input. Listening to the subscriber is carried out along the following chain: the second input of the block 24s, the first input and the output of the 15 second switch 73 and 74, the turn of the first switch 73, the input by the first of which the output is switched by the negotiating block 76, to the third input connected with exit

In the course of the meeting, at block 75, and in the second, the input to the first and fifth inputs of block 24, the corresponding output of the third output register 30 is connected to the input of the block parallel code. information signals. The control signals determine at which output of register 69 or, block 70 should appear or displace the signal at control input of block 75, upon receipt of which in the latter an inductor call signal is generated, the signal coming from its input, and -ir output through the input-output unit of 24 V

"3" /

block 25, where the acoustic signal is generated.

holding the indicated signals.

Block 70 converts informational

 the signals intended for its first and second outputs, to the signals supplied to block 71, in which the numbers and other details of the speakers and, accordingly, the subscribers who have the right word, are displayed,

Signals intended for the third s of the fourth and fifth outputs

(block 70, converted to cho

(code,

In the case of a dispatcher’s negotiation with any subscriber, after entering through block 8 of block 5 the necessary command code, the fourth and fifth inputs of block 24 of the dispatcher, and consequently, the corresponding signals change to the control and accordingly information inputs of register 69. The state of the first and second outputs of this register. This changes the state of the first 75 and second 74 switches, in iiepdOM

20

of which the output is switched to the second input, and in the second - the input to the second output. The next conversation between the dispatcher and the subscriber is formed; the output of the negotiation unit 76, the input and the second output of the second switch 73, the first output of the unit 24 and further to the subscriber transmission line. The subscriber speaks to the dispatcher through the chain: the subscriber’s reception line and then the third input b until 24, the second input and output of the first switch 73, the input of the negotiation unit 76.

If it is necessary to establish service communication with the manager after the dispatcher has entered, using keyboard 8 of block 5, the required command code to the fourth and fifth block inputs

24 dispatchers receive the corresponding signals, as a result of which the state of the first, second and second switches 73 and 74 changes, all of which switch the output to a third input connected to the output

the third outputs of the register 69, while changing the state of the first and

The corresponding signals are received in the controller's first 24, as a result of which the state of the first, second and second switches 73 and 74 changes, from which the output is switched to the third input connected to the output

block 75, and in the second - the input to the first output connected to the input of block 75. From the third output of register 69

a step is passed to the control input of the block 75, upon receipt of which in the latter, an inductor call signal is generated, coming from its input

block 25, where the acoustic signal is generated.

The connection establishment and the conversation of the dispatcher with the GTS (urban telephone network) subscribers is carried out with the help of a hub 72, which allows to connect to any line received through the line inputs / outputs of the dispatcher block 24, to the hub 72, to dial and talk on the specified line, as well as its retention when connected to another line.

Claims (6)

Invention Formula i. A loudspeaker conference device, containing N subscriber units, the first inputs / outputs of which are connected to N subscriber input outputs of the transfer of the line switching unit, N N subscriber inputs outputs of which are connected to the second inputs outputs of the corresponding N blocks subscribers, a transmission unit, N input-output of which is connected to the N input-output of the transfer of the line switching unit, N input-output receiving of which is connected to the N input-output of the receiving unit, N inputs of which are connected to the N corresponding N output of the transmission unit, the first input which is connected to the first output of the receiving unit, the dispatcher unit, the first and second outputs of which are connected to the second and control inputs of the transmission unit, the third and fourth outputs of the dispatcher unit are connected to the control inputs of the receiving unit and the switching unit no line, as well as the head unit, the first output of which is connected to the first input of the dispatcher unit, the second input of which is combined with the first input of the head unit, the input-output of which is combined with the input-output of the dispatcher block, the third inlet is connected to the second output of the reception unit, differing from the fact that, in order to increase the number of conference participants by providing accessibility to the telephone network, four addendum units, a control unit and a compensation unit containing an echo canceller, The listening unit, the M adders, the generator and the first and second switches, and the control unit contain a pairing unit, a decoder, a keyboard, a memory unit and a register, the seven outputs of which are the seven outputs of the control unit, the first and second inputs of which are The first and second inputs of the interface unit, connected respectively to the output of the transmission unit and the third output of the reception unit, in the control unit, the control inputs of the interface unit, keyboard, memory unit, register and output of the decoder are combined into the control bus, and The information outputs of the interface unit, the keyboard, the input-output of the memory unit, the input-output of the decoder, and the information input 50 h of the register are combined into the information bus; in the compensation unit, the input and output of the echo canceller are respectively the first input and output of the compensation unit, Its second and third control inputs are respectively the control inputs of the first switch, the generator and, the second switch, the M linear inputs. the third entrance and the second exit of which The add-ins of which are M line inputs-outputs of the compensation unit, the other M-1 inputs and outputs of the second switch are connected to the corresponding M + 1 inputs-outputs of the matching unit, the M other outputs of which are connected to the M inputs of the listening unit, the generator output under The key is connected to the input of the first switch, the M outputs of which are connected via M to the corresponding adders to the M inputs of the matching unit, the additional output of which is connected to the second input of the echo canceller, the second output of which is connected to the additional output during the matching unit, the inputs of all M adders combined are the second input of the compensation unit connected to the output of the fourth adder, the first input of which is combined with the first inputs of the first third adders and connected to the output of the head unit, the second and third inputs of which are connected to the first and second outputs of the control unit, the third and fourth outputs of which are connected to the fourth and fifth inputs of the dispatcher unit, the second input of which is connected to the second input of the fourth adder and the output of the second sou Mmator, the first input of which is connected to the second input of the first adder and the first output of the compensation unit, the first input of which is connected to the output of the third adder, the second input of which is combined with the second input of the second adder and the first input of the transmission unit, the third input of which is connected to the output of the first the adders, the fifth, sixth and seventh outputs of the control unit are connected to the corresponding first, second and third control inputs of the compensation unit, the M linear inputs-outputs of which are connected to the corresponding M linear inputs-outputs of the controller unit. 2. The device according to claim 1, wherein the subscriber’s unit contains successively connected command shapers, a protrusion and an I element, the output of which is connected to the first input of the isolation unit, the second input of which is connected to the output of the driver team Prosh words, a listening unit, connected to the first exit of the isolation block, h and the third entrance and the second output of which The add-outs of which are M line inputs-outputs of the compensation unit, the other M-1 inputs and outputs of the second switch are connected to the corresponding M + 1 inputs-outputs of the matching unit, the M other outputs of which are connected to the M inputs of the listening unit, the generator output is connected to the input of the first switch, M outputs of which through M of the corresponding adders are connected to the M inputs of the matching unit, the additional output of which is connected to the second input of the echo canceller, the second output of which is connected to the additional The second input of the matching unit, the second inputs of all M adders are combined and are the second input of the compensation unit connected to the output of the fourth adder, the first input of which is combined with the first inputs of the first and third adders and the second and third inputs of which are connected to the first and second outputs of the control unit, the third and fourth outputs of which are connected to the fourth and fifth inputs of the controller unit, the second input of which is connected to the second input of the fourth adder and output The second adder, the first input of which is connected to the second input of the first adder and the first output of the compensation unit, the first input of which is connected to the output of the third adder, the second input of which is combined with the second input of the second adder and the first input of the transmission unit, the third input of which is connected to the output of the first adder , the fifth, sixth and seventh outputs of the control unit are connected to the corresponding first, second and third control inputs of the compensation unit, the M linear inputs-outputs of which are connected to the corresponding yuschim M linear controller inputs-outputs unit. 2. The device according to claim 1, wherein the subscriber unit contains a sequentially connected command driver, the Speech and an I element, the output of which is connected to the first input of the isolation unit, the second input of which is connected to the output of the driver commands I ask h and the third entrance and the second output of which words, a listening unit connected to the first output of the isolation block, connected, respectively, to the output of the information transfer unit and the receiver input of the command of the Performance, the first and second outputs of which are connected respectively to the second input of the And element and the indicator input, as well as the telephone apparatus, telegraph apparatus and receiver of the line switching signal, the first and second the inputs of which are connected to the fifth and sixth inputs of the line switch and are the first and second outputs of the subscriber unit, the first and second inputs / outputs of the line switch are connected to p The first and second inputs-outputs of the subscriber unit. 3. The device according to claim 1, characterized in that the line switching unit comprises a telephone line switching unit, a telegraph line switching unit, a register, a memory unit, an interface unit and a decoder, the first and second register outputs being connected to the control inputs, respectively the telephone line switching unit and the telegraph line switching unit, the control inputs of the register, the memory block, the interface unit and the decoder output are combined into the control bus, the information input of the register, the information inputs-outputs of the unit The m and the decoder and the output of the interface unit are combined into the information bus, while the N subscriber inputs-outputs of the transmission and N telegraph inputs-outputs of the switching unit of telegraph lines are the corresponding inputs-outputs of the switching unit of lines, N inputs-output in the transmission and the N input-output outputs of which are, respectively, the N input-output of the transfer unit of telephone lines and the N input-outputs of the reception unit of the transfer of telegraph lines, and the input of the interface unit is the control input of the block switch lines. 4. The device according to claim 1, characterized in that the transmission unit comprises a transformer unit, an interaction signal receiving unit, a transmission amplifier unit, first and second switches, a register, a multiplexer, a memory unit, an interface unit and a decoder, N inputs- the outputs of the transmission unit are N inputs-you 0 0 25 thirty five 40 45 35 50 55 the transformer block moves whose N inputs and N outputs of which are connected respectively to the outputs of the transmission amplifier unit and to the N inputs of an interaction signal receiving block whose N outputs are combined respectively with the N inputs of the multiplexer and are respectively N outputs of the transmission block :, first and second inputs which are respectively the inputs of the first and second switches, 1 control inputs of which are connected respectively to the first and second outputs of the register, and N outputs of the first and second switches are combined and Connected to the N inputs of the transmission amplifier unit, whose manager's input is the third input of the transmission unit, the control and command inputs of which are respectively the input and output of the interface unit, the control input of which is combined with the control inputs of the register, multiplexer, memory block and the control output of the decoder, and the inputs / outputs of the interface block, the decoder and the memory block, the register input and the multiplexer output are combined into an information bus, 5. The device according to claim 1, characterized in that the receiving unit comprises a transformer unit, a receiving amplifier unit, an interaction signaling unit, first and second switches, a multiplexer, a register, a memory unit, a interface unit and a decoder, wherein the N outputs transformer block are connected respectively to the N inputs of the receiving amplifier block, whose N outputs are connected respectively to the pairwise combined inputs of the first and second switches, the control inputs of which are connected to the first and second inputs of the register, the third output which is connected to the input of the signal transmission unit of the interaction, the N outputs of which are connected to the corresponding N inputs of the transformer block, the N inputs-outputs of which are the N inputs-outputs of the reception unit, the N inputs of which are respectively N inputs of the multiplexer, the control input of which together with the control inputs of the register, the memory block, the interface block and the output of the decoder are combined into the control bus, and the output together with the register input, inputs 25 the outputs of the memory unit, the interface unit and the decoder are integrated into the information bus, the control input, the first, the second to the third outputs of the receiving unit being respectively the input of the interface unit, the output of the first switch, the output of the second switch . 6. The device according to claim 1, characterized in that the manager unit comprises an interface unit, an information transmission unit, an listening unit, an information display unit and a service communication unit, wherein the control and information inputs of the interface unit are respectively the first and second inputs of the manager unit, the input of the listening unit, the output of the information transfer unit and the input-output of the service communication unit are the third input, output and input-output of the unit, respectively the manager, and the outputs of the interface unit are connected to the inputs of the information display unit. 7, The device according to claim 1, characterized in that the dispatcher unit comprises a listening unit, a register, an interface unit, an information display unit, a hub, a service communication unit, the first and second switches and the negotiation unit, ten $ 57002526 the input of the listening unit, the first and second inputs of the first switch are respectively the first, second and third inputs of the dispatcher unit, the fourth and fifth inputs of which are respectively the control and information inputs of the interface and register unit, the first, second and third outputs which are connected respectively to the control inputs of the first switch, the second switch and the service communication unit, the input and output of which are connected respectively to the third input of the first switch and the first output of the second switch, the second output of which is the first output of the dispatcher unit, and the third output of the second switch is connected to the input of the hub, the output of which is connected to the fourth input of the first switch, the output of which is connected to the input of the negotiation unit, the output of which is connected to 20 the input of the second switch, the inputs of the information display unit are connected respectively to the first and second outputs of the interface unit, the third, fourth. And the fifth outputs of which are the second, third and fourth outputs of the dispatcher unit, respectively, the V line inputs-outputs of which are respectively, the M inputs-outputs of the hub and the input-output unit of the service communication unit. Fig.i 5 Compiled by V.R. Evtsov Editor N.Lazarenko Tekhred L.Serdyukova Order 1460 Circulation 528 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, 4/5, Raushsk nab. 66 Proofreader N.Korol Subscription