SU1547079A1 - Device for amplitude correction of codes - Google Patents

Abstract

The invention relates to computing and can be used to correct a code pattern received from a communication channel. The purpose of the invention is to enhance the functionality by correcting the codes. The device contains a register 1, a group of counters 2.1-2.N, an element 4 and a control unit 9 with corresponding connections. The device can be used in any data transmission systems using codes with structural redundancy. 1 il.

Description

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The invention relates to computing and can be used to correct a code pattern received from a communication channel.

The aim of the invention is to extend the functionality by correcting codes

The drawing shows a diagram of the device for the amplitude correction codes.

The device contains a register 1, a group of counters 2.1, ... 2.n {n - the number of bits in the code), a group of information inputs 3 "element 4, input 5 start, clock input 6S control output 7, information output 8 and block 9 control.

The control unit 9 is a control unit of the redundancy code and can be implemented depending on the type of the redundancy code. The register function of the control block is performed by the register t. The control unit is designed to determine the presence of an error and output a signal to the output: if there is an error, there is one at the direct output and zero at the inverse. The counters 2.1, ..., 2.p are designed to record the level of the digital signal converter O or 1 received with the help of analog 0.

The device works as follows.

When receiving a code combination code with structural redundancy, the receiving analog-to-digital converter through a group of information inputs 3 records the level of each element

Node parcel code O or 1 in accordance

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counter counter At the output of each of the 2.1, ..., 2.p counters, there is a single potential if its content is greater than any constant. For this method, a constant of 45 is sufficiently large, corresponding to the maximum reception threshold.

After recording the levels of elementary dressing, a single potential is applied to the input 5. In case block 9 of the KOHT-Q, the roll issues an error, i.e. at its direct output a unit, then the element And 4

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sends a pulse from input 6 to the reset input of register 1, which zeroes it, at the same time an increase in the state of the counters 2.1, ..., 2.n per unit. If a single potential at the output of control unit 9 is maintained, then the described operation is repeated. If a unit potential appears at the inverse output of control unit 9, i.e. If control unit 9 indicates a corrected code combination, the code combination is output via output 8.

If the further correction, brought to a certain level, does not give a result, therefore, the code combination cannot be corrected by this method.

The proposed device can be used in any data transmission systems that use codes with structural redundancy.

Claims (1)

Invention Formula A device for amplitude correction codes containing a register, a group of counters and an element AND, the outputs of the group counters are connected to the installation inputs of the corresponding register bits, the start input and the device clock input are connected respectively to the first and second inputs of the AND element, characterized in that the purpose of extending the functionality by correcting the codes, a control unit is inserted into it, with the group of information inputs of the device connected to the installation inputs of the corresponding group counters The counting inputs of which are connected and connected to the reset input of the register and the output of the element I, the third input of which is connected to the direct output of the control unit, the internal output of which is the control output of the device, the outputs of the register bits are connected to the corresponding inputs of the control unit and are informational output devices.