SU1401634A1 - Data signal two-channel transmission device - Google Patents

Abstract

The invention relates to telecommunications. The purpose of the invention is to increase the amount of information transmitted. The device contains encoders 1 and 2, delay unit 3, adder 4, output matching unit 5, code converter 6, r-7 and decoder 8. Signals from the main and additional information sources are encoded in encoders I and 2 and after the corresponding conversion are added in adder 4. After that, the resulting signal is fed to matching unit 5, in which the modulation, formation of the required spectrum of the transmitted signal, and matching of the transmitted signal with the communication channel are performed. Pel is achieved by introducing a decoder 8, which in any of the subchannels determines the signal of a given value, as well as by inserting a converter 6, which forms a code combination corresponding to the number to be summed in adder 4 with the given number of the corresponding subchannel. 1 il. & S

Description

05 WITH

The invention relates to a technique of telecommunications and can be used to organize two (additional and main) synchronous data transmission channels in the spectrum of the communication channel.

The purpose of the invention is to increase the amount of information transmitted.

The drawing shows a structural electrical circuit of the proposed device.

In code converter 6, a code combination is formed corresponding to the number that must be summed in adder 4 with the number ± 3 of the corresponding subchannel. The delay unit 3 is necessary to equalize the time of arrival of the items to the inputs of the sum.mtor 4.

Thus, at the output of the adder 4, there are signals, the values of which are equal to the two-channel signal transmission device 10 | 5 | at 1 1. cash, the data contains the first 1 and second C output of the adder 4 signal arrives

2 encoders, delay unit 3, adder 4, to the output matching unit 5, in which the output matching unit 5, the modulation is carried out by the converter, the shaper 6 of the code, the generator 7 and the decrypter 8. the required spectrum of the transmitted signal The device works as follows . , signal, as well as matching transmitting- Signals from the sources of the main and home signal with the communication channel. The signal from additional information (not shown) of the output of the generator 7 clocks the operation of the first input from the device to the first 1 and second 2 encoders (and the corresponding input from the information source is traditionally received via an ad-20 bler). In the first encoder 1, a signal is generated, the space of which corresponds to, for example, Recommendation V 22 bis CCITT. In this case, the values of the signals in each of the subchannels are 111 or I 3 I. The coded signal from the output of the first encoder 1 is fed through the block 3 of the delay to the adder 4 and directly to the decoder 8. In the decoder 8 it is determined

1 and second 2 coders.

Claims (1)

Invention Formula a signal (in any of the subchannels) whose value is | 3 (. In the second encoder 2, with the values of the transmitted element of the additional signal 1g. 1. arriving at the input of the second encoder 2 with a period T, a signal is generated, but the value of which increases A two-channel data signaling device containing the first coder, the delay unit, the adder, and the output matching unit connected in series, and 25 also a generator and a second encoder, the signal input of which and the signal input of the first encoder are inputs of a device whose output is an output of an output matching unit, characterized in that, in order to increase the volume of the transmitted information, a code converter and a decryptor are entered input and output of which are connected respectively with the output of the first encoder and with the control input of the second encoder, the second and third control inputs of which are connected respectively to the first on the interval T of the nearest signal 35 with the first output th generator that at the output matching block, the modulation, the required spectrum of the signal transfer, and the matching of the signal to the communication channel are carried out. generator output 7 clocks the ra 1 and second 2 coders. Invention Formula on the output matching unit 5, in which the modulation is carried out, the formation of the required spectrum of the transmitted signal, and the matching of the transmitted signal with the communication channel. The signal from the generator output 7 clocks the operation of the A two-channel data signaling device containing the first coder, the delay unit, the adder, and the output matching unit connected in series, and the generator and the second encoder, the signal input of which and the signal input of the first encoder are the inputs of the device whose output is the output of the output matching unit, characterized in that, in order to increase the volume of the transmitted information, a code converter and a descriptor are entered. and the output of which is connected respectively to the output of the first encoder and to the control input of the second encoder, the second and third control inputs of which are connected respectively to the first output of the generator, which the main channel, the value of which is | 3 | in any of the subchannels. With 1 g 0, a control signal is generated in the second encoder 2, according to which the signal value in the main channel does not increase. connected to the control input of the first encoder, and with the second output of the generator, while the output of the second encoder is connected via a code converter to the second input of the adder.