SU1619248A1 - Device for for comparing numbers in residual class system - Google Patents

Abstract

This invention relates to automation and computing. The purpose of the invention is to simplify the device. The device contains subtractors 1,2, code converters 3,4, adder 5, comparison blocks 6-8, block forming constants (BFC) 9, encoder 10, elements OR NOT 11.12, inputs 13 - 16 numbers A and B, clock input 17, outputs 18-20. The bases P, and P2 SOC are selected from the row, where, 2 ..., BFK 9 forms the constant C (P | + P) / 2. Numbers A and B are represented in SOC by the residues 0 (t, ,, | 3d for the bases PJ and P 1 ill. LO o-i ---

Description

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The invention relates to automation and computing and can be used in systems for tolerance control of objects and computers operating in the system of residual classes (JUICE).

The purpose of the invention is to simplify the device.

The drawing shows a diagram of the device.

The device contains subtractors 1 and 2, converters 3 and 4 codes, adder 5, blocks 6-8 comparisons, block 9 forming constants, 10S encoder elements OR-NOT 11 and 12, inputs 13-16 residues of numbers A and B on bases P , and P, clock input 17, outputs 18-20.

The bases P and P SOK are selected from the series P, 6N-1, where, 2 ... Block 9 of the formation of a constant forms the value C (P1 + P2) / 2. Comparison of the numbers A and B is represented by the residuals ((X ,, с ) and (/} () on the basis of m C C I P.

The device works as follows.

The inputs 13-16 receive, respectively, the values 0,, d / g,) 5 Ar. The subtractors I and 2 form (with a sign), respectively, the values of q 0 / g-C, and $ s p) g-P). Analyzing the signs of the numbers d and JJ, the converters 3 and 4 codes form the values iijjfgi at their outputs, respectively. Amount + / Woo | calculated by adder 5, is compared by comparison block 6 with constant C. Comparison block 7 compares the values of /) fft | and a block 8 comparisons - values (Y and 2. Elements OR-HE 11 and 12 determine whether the bullet magnitudes and Signals formed by blocks 6–8 of Equation, elements OR-NOT 11,12, as well as signs of magnitude | d and tv and their least significant bits are fed to the inputs of the encoder 10. The latter forms signals of the logical unit at output 18 in one of the following cases:

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The signs yfl and jf B are the same, $ $,

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The encoder 10 generates a signal of a logical unit at the output 19 in case if the signs TO d and VB coincide,

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In other cases, the encoder 10 generates a single signal at the output 20.

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Claims (1)

Invention Formula A device for comparing numbers in the system of residual classes, containing two subtractors, a unit for generating constants, an adder and a first comparison unit, the outputs of the adder being connected to the inputs of the first group of the first comparison unit, characterized in that, in order to simplify the device, it contains the second and third comparison blocks, two code converters, two OR-NOT elements and an encoder, with the inputs of the residuals of the first and second numbers on the first base of the device connected to the inputs of the first and second subtracted, respectively, decremented telephones whose mantiss outputs are connected to information inputs of the first and second code converters, respectively, the output groups of which are connected to the corresponding inputs of the first and second OR OR elements, respectively, with the inputs of the first and second groups of the second comparison unit and the inputs of the first and second, respectively groups of the adder, the inputs of the second group of the first block of comparison are connected to the outputs of the block forming a constant, the inputs of the residues of the first and second numbers on the second base of the coi Inns with inputs of the first and second groups of the third comparison unit, respectively, and with the inputs of the first and second subtractors, respectively, the output outputs of which are connected to the control inputs of the first and second code converters, respectively, the More and Less outputs of the first and second comparison blocks, the outputs are Equal to the second and Third Comparison Unit, Output Less than Third  16192486 Comparison block, sign outputs, clock input, device of soybean outputs of low-order bit of the first one is identical with the gate input of the second subtractor and outputs of the first, first, second and third outputs and the second element OR is NOT connected, which are respectively the output information inputs of the encoders More, Less Equal, respectively, from the first to the third.