RU1800631C - Multichannel digital communication system - Google Patents

Abstract

Usage: electric communication. SUMMARY OF THE INVENTION: A multi-channel digital communication system for increasing throughput comprises oscillators 1,2, a transmitting group unit 5, a receiving group unit 6, transmitting individual units 4, receiving individual units 7, switching units 3,10, a control signal transmission unit 8; command receiver 9, control memory unit 15. The speed in the group path and individual blocks varies due to the control of the frequency of both generators 1,2 depending on the time of day according to the commands recorded in the control memory block. 1 ill.

Description

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The invention relates to telecommunications, in particular to multi-channel communication systems.

The purpose of the invention is to increase throughput.

The drawing shows a block diagram of a multi-channel digital communication system.

The multi-channel digital communication system contains the first 1 and second 2 generators, the first 3 switching blocks transmitting 4 ... 4P individual blocks, the transmitting group block 5, the receiving group block 6, the receiving individual blocks 7 ... 7P, block 8 control signal transmissions, a command receiver 9, a second switching unit 10, a first 11 and a second 12 OR elements, AND elements 131,.,., 13t, a divider 14, a control memory unit 15, And 16 ... 16t elements. The outputs of the first 1 v of the second 2 generators are connected respectively to the second inputs of one 13, ... 13t and the other 16 ... 16t elements I. The outputs of the first 3 switching blocks are connected to the signal inputs of transmitting INDIA-dual blocks 4 ... 4P, outputs which are connected to the corresponding inputs of the transmitting group block 5, the first and second outputs of which are connected respectively to the first input of the receiving group block bis by the signal inputs of the first switching block 3. The outputs of the first 3 and second 10 switching blocks are connected respectively etstvenno to second inputs of the transmission 4 ... 4P and 7P ... 7 receiving individual blocks corresponding output of the first switching unit 3 is connected to the clock input of the transfer control signals 8, the output of which is connected to the data input of the last individual transmitting unit 4n; a information inputs of the remaining transmitting individual blocks 4 ... are information inputs of the system, the information outputs of which are the outputs of the receiving individual blocks 71 .... 7P. An additional input of the transmitting group unit 5 is connected to the output of the first element OR 11, the inputs of which are connected to the outputs of the elements AND 13 ... 13t, the first inputs of which, as well as the control inputs of the first switching unit 3 and the information inputs of the control signal transmission unit 8, are connected are dined with the outputs of the control memory block 15, the input of which is connected to the output of the divider 14, the input of which is connected to the corresponding output of the first generator 1. Some outputs of the receiving group unit 6 are connected to the first inputs of the receiving individual ln blocks 71 ... 7P, other outputs are connected to the inputs of the second 10 switching unit, the output of the receiving individual unit 7P is connected to the first input of the receiver 9 teams, the first outputs of which are connected to the second inputs of the second switching unit 10, the corresponding output of which is connected to the second input a receiver of 9 commands, the third input of which is connected to the output of the second OR element 12, and the second outputs are connected to the first inputs of the AND elements 161 ,, .. 16t, the outputs of which are connected to the inputs of the second 12 OR element, the output of which is connected a second input receiving unit 6 group.

A multi-channel digital communication system operates as follows.

In the initial state, command codes are recorded in the control memory unit 9. The change of codes is provided over time upon receipt of pulses from the output of the divider 14 to the input of the control memory unit 15.

The system is put into operation by applying the command code (signal combination) to the first switching unit 3. At the same time, the signal combination is also transmitted to the receiver 9 of the commands. In accordance with this combination, the necessary operating mode is set in the system. Depending on the codes of the commands recorded in the control memory block 9, the following are set:

transmission (reception) speed in the group path of the system;

speed of transmission (reception) of information digital signals. through each transmitting 3 and receiving 4 individual blocks.

Depending on the current time, the last operation is performed as follows.

At the output of the control memory unit 15, under the influence of pulses from the divider 14, a constant combination (command code) of control signals appears. This combination arrives at the control inputs of the first switching unit 3, the first inputs of the elements And 13 ... 13t and the information inputs of the control signal transmission unit 8. Next, this combination through blocks 4P, 5,6 and 7P enters the receiver 9 commands of the receiving part of the system . The signal inputs of the first 3 switching blocks receive pulses from the transmitting 5 group block, which, depending on the state of the switches in the first 3 switching block determined by the specified combination of control signals, are transmitted to 4 ... 4P individual blocks. The combination of control signals received by the receiver 9 commands from block 15 of the control memory is transmitted to the second inputs of the second 10 switching blocks, ensuring coordinated operation of the transmitting and receiving parts of the system according to the speed of input of information into individual transmitting blocks 4 ... 4P and the speed of information output from the corresponding individual receiving units 7 ... 7P. The coordinated operation of the control signal transmission unit 8 and the command receiver 9 is ensured by supplying identical clock pulse sequences to the clock input of the control signal transmission unit 8 and the second input of the receiver 9. .

The transmission and reception rate of signals in the group path of a multi-channel digital communication system is set as follows.

From the outputs of the control memory block 15 to the first inputs of the elements And 13 ... 13t and from the second outputs of the receiver 9 commands to the first inputs of the elements And 161, .. 16t identical combinations of control signals are received, If the first inputs of some of the elements And 13,., 13t, 161 ... 16t are unit potentials, the corresponding elements open and certain clock sequences from specific outputs of the generators 1 and 2 pass through the elements OR 11 and 12 (the sequences are phase shifted relative to each other ) Thus, identical clock sequences are generated at the output of generators 1 and 2, supplying the remaining blocks of the system with clock signals. Using combinations of control signals from the outputs of control memory block 15 are optimal for a particular time of day (for specific conditions of information transfer), it is possible to obtain such a frequency of clock pulses at which the speed of transmission and reception of signals in the group path of the system and proportionally changed transmission and reception speeds of individual streams Info will be optimal in terms of its maximum capacity under the conditions which are present at this time Su- current.

Sequences of digital information signals are fed through connecting lines to the information inputs of transmitting individual blocks

41. ,, 4P and to the transmitting group unit 5, which provides for their temporary integration, distribution in cycles and transmission along the group path (communication channel) to the receiving 6 group unit. The received signals in the receiving group unit 6 are phased, rearranged, converted for transmission through the connecting lines are provided to the information outputs.

Claims (1)

SUMMARY OF THE INVENTION A multi-channel digital communication system comprising two generators, a first switching unit, the outputs of which are connected to the signal inputs of the transmitting information units, the outputs of which are connected by the corresponding inputs of the transmitting group unit, the first and second outputs of which are connected respectively to the first input of the receiving group unit, one the outputs of which are connected to the first inputs of the receiving individual units, and with the signal inputs of the first switching unit, the corresponding output which is connected to the clock input of the control signal transmission unit, the output of which is connected to the information input of the last transmitting individual unit, and the information inputs of the remaining transmitting information blocks are information inputs of the system, the information outputs of which are the outputs of all the receiving individual blocks, except the last, the output of which is connected to the first input of the command receiver, the first outputs of which are connected to one input of the second switching unit, the other inputs and the outputs of which are connected respectively to the other outputs of the receiving group unit and to the second inputs of the receiving individual units, wherein the corresponding output of the second switching unit is connected to the second input of the command receiver, characterized in that, in order to increase throughput, two OR elements are introduced , AND elements and serially connected divider and control memory block, the outputs of which are connected to the control inputs of the first switching block and to the first inputs of some AND elements, the second the passages and outputs of which are connected to the outputs of the first generator and to the inputs of the first OR element, the output of which is connected to an additional input of the transmitting group unit, the corresponding output of the first generator connected to the input of the divider, and the outputs of the second generator connected to the second inputs of other elements AND, the first inputs and the outputs of which are connected respectively to the second outputs of the receiver commands and with the inputs of the second OR element, the output of which is connected to the second input of the receiving group unit and to the third input of the command receiver.