RU1790804C - Equipment for interface of manually operated exchange with pulse channel of long-distance communication system - Google Patents

Abstract

The invention relates to communication technology. The purpose of the invention is to expand the functionality and increase the utilization rate of the communication channel. A device for interfacing a hand-held telephone exchange with a pulsed long-distance communication channel comprises a receiver 1, a channel set 2, a decoding device 3; timer 4, memory register 5, input 6 and output 7 switches. The essence of the invention lies in the fact that the introduction of input and output switches, a decoding device with a memory register and a timer, as well as the specific execution of the channel kit, make it possible to transmit code information during a telephone conversation (in the pauses between speech signals), which allows more optimally use the communication channel and extends the functionality of the device, for example, by providing the possibility of control (using transmitted code information) of various of the apparatus, finding schimis at large distances. 1 ill. (L

Description

The proposed solution is unique to the communication technique and can be used as a device for the exchange of control interaction signals 1 through discrete information transmission channels.

The drawing shows an electrical structural diagram of the proposed device.

A device for interfacing a hand-held telephone station with a pulsed long-distance communication channel comprises a receiver 1 for interaction / control signals, a channel set 2, a decoding device 3, a timer 4, a memory register 5, the first 6 and second 7 switches, the channel input 8 of the device , channel output 9 of the device, subscriber input 10 of the device, subscriber output 11 of the device 1, control input 12 of the device, control output 13 of the device, input 14 of the signal signal of the device.

Channel kit 2 comprises a receiver for inputting interaction / control signals made on the buffer register 15, marker 16, and preliminary decoder 17, code generator 18 and mixer 19.

The device operates as follows.

In order to provide the possibility of exchanging code information between subscribers of different telephone exchanges connected with each other by long-distance communication channels, devices similar to what is claimed should be installed on both the transmitting and receiving sides. Moreover, their work is similar.

Consider the operation of the claimed device in the outgoing communication mode (the subscriber wants to transmit information).

In this case, the decoding device 3 (at the input 12 of the device) of the descending RTS - receives a control signal, through which the decoding device 3 generates a signal at its control output 1 that goes to the control input of the switch 6 and blocks its operation (prohibiting information passing from the long-distance communication channel, from the input 8 of the device, to the RTS, to the output 11 of the device, during the exchange of interaction / control signals over the channel). In this case, a necessary time delay is provided by a timer 4, which is switched on by a control signal from the output 4 of decoding device 3.

At the same time, on the control output 2 of the decoding device 3 is formed

the signal supplied to the input of the shaper 18 code channel set 2.

Based on this signal, an eight-element code sequence (in code 3 of 8) is generated at the output of driver 18.

At the same time, for the entire delay time (communication / control signal exchange time) on the RTS, through the switch 6 (by the signal 11 of the device), a notification signal is received.

The eight-element code sequence from the output of the code generator 18 is fed to the input of the mixer 19 of the channel set 2, where another five-element marker code is added to this code combination (sequence),

. From the output of the mixer 19, the received tm-eleven-element code combination is sent through the switch 7 (at the output 9 of the device) to the long-distance communication channel.

Let us consider the operation of the claimed interface device in the incoming communication below on the receiving side: the thirteen-element code sequence received from the channel is input to the interface 8 of the interface device similar to that described on the transmitting side and recorded in the reception register 1.

From the output of register 1, this sequence is fed to the information input of channel set 2, i.e. to the inputs of its receiving register 15 and the highlighter 16 marker.

If the information is received correctly, the marker isolator 16 gives a command (by its control output connected to the control input of the buffer register 15) to write an eight-element code 3 of 8 (from the received thirteen-element code sequence) to the buffer register 15, s the output of which this code is fed to the preliminary decoder 17 of the channel set 2. Here, the received code 3 of 8 (control code) is converted into a code convenient for the decoding device 3. Upon receipt of the output, the preliminary decoder and 17 to the control input 1 of the decoding device 3 of the transformed code sequence, the decoding device 3 generates a signal on its control output 4 and writes it to the memory register 5, from where this signal is then sent to the PTC executive device (for example, to turn on the necessary signaling - in accordance with the command received from the communication channel),

At the same time, the decoding device 3 includes (in its control

output 3) a timer 4 to provide the necessary delay for the exchange of control / interaction signals and gives a command (according to its control output 5) to the code generator 18 to generate a 3 out of 8 code sequence, to form a thirteen-element code sequence in the mixer 19 and to transmit it by its control signal from the output 5 to the further communication channel (through the switch 7 to the output 9 of the device) as an acknowledgment signal to the control code.

On the transmitting side (outgoing RTS), this code sequence arrives at input 8 of the device to receive register 1. Further, the operation of the claimed device is similar to that described above on the receiving side.

In principle, from the output of the preliminary decoder 17 to the confirmation code and the signal about the end of the delay time from the timer 4, the decoding device 3 removes the notification signal sent through the switch 6 to the RTS and switches off (by its output 5) the commutator 7 to the transmission information from the RTS to the long-distance communication channel.

On the receiving side, the decoding device 3 of the interface device, by the signal of the timer 4 about the end of the delay, blocks its switch 7 and switches off the path through the switch 6 in the direction from the channel to the RTS, i.e. to receive information.

Claims (1)

The claims - Device for interfacing a hand-held telephone station with a pulse channel, yes; A communication link containing a channel VDMC connected by a group of inputs to a group of outputs of a control signal receiver, characterized in that, in order to expand the functionality and increase the utilization rate of the communication channel, the first and second switches are decoded into it, the decoding unit and a memory register, the output of which is the control output of the device, and the input is connected to one of the two control outputs of the decoding unit, one of the control inputs of which is the control input of the device, information the ion input of the control signal receiver connected to the information input of the first switch is a channel input, the signal signal input of the device is connected to one of the control inputs of the first switch, the information output of the first switch, the information output of the first switch and the information input of the second switch are, respectively the subscriber output and the subscriber input of the device, the output of the second switch is the channel output of the device, the group of control inputs of the first a mutator is connected to one of four groups of control outputs of a decoding unit, a group of control inputs of a second switch is connected to another group of control outputs of a decoding unit, a third group of control outputs of which is connected to a group of control inputs of a timer connected by an output to a second control input the decoding unit, the last group of control outputs and the second control output of the decoding unit are connected respectively to the group of input inputs and the control input and control the input channel set, the group of outputs and the output of the control signals of which are connected respectively with the same group of inputs of the decoding unit and with the same input of the second switch, the channel set contains a receiver made on a buffer register, highlighter f. bay window and preliminary decoder, and a group of inputs the buffer register connected to the group of inputs of the marker highlighter, is the group of control inputs of the channel kit, the control output of the highlighter marker is connected to the input the permissions house of the buffer register register, the group of outputs of which is connected to the group of information inputs of the preliminary decoder, the group of outputs of which is the group of outputs of the control signals of the channel set, the transmitter, which is part of the channel set, is made on a code generator and mixer, and the control group of the input inputs of the code generator is the group of control inputs of the channel kit, and the group of outputs is connected to the group of inputs of the mixer, the output of which is the output of the signals Regents of the channel set, and a control input of the mixer - the control input of a channel set.