SU1479933A1 - Code checker - Google Patents

Abstract

The invention relates to computing and data transmission and can be used to control a minimum code. The purpose of the invention is to expand the scope by controlling the minimum code. This goal is achieved by the fact that a device for controlling a code containing a group of elements AND 2, an element OR 3, a group of elements OR 4, has a new organization of communications. 1 il.

Description

Ј

WITH

with so with so

The invention relates to computer technology and data transmission technology and can be used to control the minimum code.

The aim of the invention is to expand the scope by controlling the minimum code.

The drawing shows a diagram of a device for controlling a code (for). 1P polynomial

In min naturally

ten

The device contains a group of inputs 1.1-1.10 of the device, a group of elements AND 2.1-2.7, an element OR 3, a group of elements OR А.1-4.6, an output 5 of the device.

In the minimum number system, natural A is represented as

A Z CЈy (S),

Sn

h

1 for v (S) Ј A - Ј С v (K) v (S + 1);

it - C TK

s 10 with vCS) A - Ј); A g Sk1DK);

 (2)

0 at S (. O;

1 at 1;

if (S-2) + y (S-3) with S 1,

The method of controlling the minimum code is described by the function

moreover, the value of y (n + 1) determines the power of the n-bit minimum code.

XMUK C, vC3 (C2AC4) V С (CtVC4) V С (СгуС4УС5) Л CjV V (C4VCS Ct) CzVC2t1VCztlVCz.j) ACzt4, (3)

The device works as follows.

30 Suppose that the inputs 1.1-, 1.10 of the device are given the number 15,

where Z 4, p-4.

The essence of the invention is the implementation of the test relation (3) while controlling the minimum code.

f ° bit 10 9 8 Bit weight 12 9 7 Minimum code 1 О О

represented in the minimum code 7654321 5432211 0010000

As a result, a single potential is established at the first inputs of elements AND 2.2 and 2.7, one of the inputs of elements OR 4.2, 4.3 and 4.4. Suppose that under the action of noise at input 1.9, a unit appears that enters one of the inputs of the element OR 4.6, At both inputs of the element AND 2.7 there will be a unit potential which passed through the element AND 2.7 and the element OR 3, arrive at the output 5 of the device, signaling the distortion of the minimum code.

In case of distortion of values on other inputs of the device, it works in the same way as described above.

The error skip factor in controlling the minimum code by the device is calculated from the ratio

V (n + p.

(four)

The method for controlling the minimum code is described by the function

Presented in the minimum code: 7654321 5432211 0010000

Taking into account the representation of the range of numbers 2 f2, the error rate of the minimum code (4) is 4.11 -10-

Claims (1)

Claims An apparatus for monitoring a code comprising a group of elements AND, a group the OR elements and the OR element, the first input of the device group is connected to the first input of the OR element, the output of which is the device output, the first inputs of the AND elements the groups are connected respectively with the inputs from the fourth to the n-th group of the device, the output of the K-th element OR of the group (K 1-p-4, n is the number of code bits) is connected to the second input (K + 1) -th element of AND group, outputs of elements of AND group are connected respectively with inputs from the second to (K-2) -th element OR, the first input of the K-th element OR. groups connected to (K + 3) -th input of the device group, the second input (of the 1st element OR of the group () is connected to the (1 + 2) -th input of the device group, characterized in that, in order to expand the scope of application by controlling the minimum code , the third input of the device group is connected to the (K-1) th input of the OR element, the second input the device group is connected to the second inputs of the first elements AND and the element OR groups, the third input of the second element OR group, the third input of the j-th () element OR of the group is connected to the (jM) -M input of the device group, the fourth input of the p-th (p 4-p) of the element OR group is connected, with the p input of the device group.