SU1479929A1 - Unit for generation of polynomial of type y=ax3+bx2cx+d - Google Patents

Abstract

The invention relates to computing and can be used in measuring devices with instrumental linearization of the conversion function. The purpose of the invention is to simplify the device by combining with the reversible counters the functions of the code-interval converter and the storage device. The device contains multiplying cells 1-6, reversible counters 7-10, triggers 11-13. 2 Il.

Description

(21) 4261767/24-4

(22) 06/15/87

(46) 05/15/89. Bnsh. N 18

(71) Kharkiv Polytechnic Institute. V.I. Lenin

(72) M.V. Krigovin, L.A. Medvedeva, K.S. Polul x and I.I. Topolov

(53) 681.325 (088.8)

(56) USSR Copyright Certificate V 851405, Clo G 06 F 7/552, 1979.

Smolov V.D. Functional information converters. 1981, p. 144, 145.

(54) DEVICE FOR REPRODUCTION OF THE POLYNOMI OF THE TYPE Y Ax + Bx4-Cx + D (57) The invention relates to computer technology and can be used in measuring devices with instrumental linearization-conversion functions. The purpose of the invention is to simplify the device by combining with the reverse counters the functions of the converter code - the time interval and the storage device. The device contains multiplying cells 1-6, reversible counters 7-10, triggers 11-13. 2 yl

r4 -si

CD CO

Yu

with

The invention relates to computing and can be used in measuring devices with instrumental linearization of the conversion function.

The purpose of the invention is to simplify the device,

FIG. 1 shows a functional diagram of the proposed device; Fig. 2 are timing diagrams explaining the operation of the device.

The device contains multiplying cells, reversible counters 7-10, triggers 11-13 and inputs 14 and 15.

The device works as follows.

Before starting the conversion to the first, second, third and fourth counters, the coefficients codes A, B, C, and D, respectively, are entered. In the initial position, all triggers will accumulate in the zero state. A single potential from the inverse output of the first trigger 11 opens the first multiplying cell 1 and the second multiplying cell 2 through the first inputs, as a result of which the input pulses with a follow-up period T are fed to the subtracting input of the first reversible counter 7, and the reference impulses with a follow-up period

equal

 one

arrive at summing

the input, the second reversible counter 8. The pulse counting in the second reversing counter 8 will continue until the next minute. -a zeroing of the first reversing counter 7,

 During the first cycle of operation of the device, pulses with a period T of following are generated from a time interval AT ,, 5, which is simultaneously quantized with reference pulses with a period of T4 - following, resulting in the formation of a number-pulse code, which is fixed in the second reversible counter 8:

TA t + + Nx.

one

The transfer pulse from the first reversible counter 7 converts the first trigger 11 into a single state, as a result of which the first 1 and second 2 multiplying cells are closed by the first inputs, and the third 3 and fourth 4 multiplying cells are opened by the first inputs and input pulses with a follow-on period T on 0

0

 They start to arrive at the subtracting input of the second reversible counter 8, and the reference pulses with a following period T2 begin to flow to the summing input of the third reversible counter 9. The counting of pulses in the third reversing counter 9 will continue until the second reversing counter 8 is zeroed.

During the second cycle of operation of the device, the time interval VT1 is formed from the NXi pulses with a period of T1 following, which is simultaneously quantized by reference pulses with a period of T 2 following, resulting in a number-pulse code, which is fixed in the third reversible counter 9:

A + B (1) + С%.

The transfer pulse from the output of the second reversible counter 8, arriving at the 5 C input of the second trigger 12, translates it into a single state, as a result of which the third 3 and fourth 4 multiplying cells are closed, and the fifth and fifth 6 open multipliers. inputs and input pulses with a period of T 1 following are fed to the subtracting input of the third reversible counter 9, and the reference pulses with a period of following T arrive at the summing input of the fourth reversing counter 10, the counting of pulses continues in the fourth reverse vnom counter until until obnulits third reversible counter 9

During the third cycle of operation, NX1 pulses with a follow-up period equal to T19 form the time interval NX1T, which is simultaneously quantized by reference pulses with a follow-up period Tg, resulting in a number-impulse code that is recorded in the fourth reversible counter 10:

T In

0

five

0

five

0

T

(

G + s.

t

(-)

 one

+ D.

Claims (1)

Invention Formula A device for reproducing a polynomial of the form Y Ax3 + Bx1 + Cx + D, containing the first multiplier cell, the first and the second inputs of which are connected to the first input of the second multiplying cell and the information input of the device, respectively, and the output to the subtraction input of the first reversing counter, the second input of the second multiplying cell is connected to the input frequency reference of the device, and the output to the addition input of the second reversible counter, characterized in that, for the sake of simplicity, it contains the third and fourth reversible counters, three triggers from the third to the sixth multiplying cells, and the output of the first reversing counter is connected to the “C-in ode of the first trigger, the D input of which is connected to the inverse output of the first trigger with the first input of the second multiplier cell and with the first inverse inputs of the third, fourth and fifth multiplying cells, the second inputs of the third and fifth multiplying cells are combined and connected to the information input of the device, the third input of the third multiplying cell, the second input of the fourth multiplying cell, the third inverse of the fifth multiplying the cells and the first inverse input of the sixth reproduction cell are combined and connected to the D-input and the inverse output of the second trigger, the C input of which is connected to the output of the second reversible counter, the subtraction input of which is connected to the inverse output of the third copying cell, the third input of the fifth copying cell and the second input of the sixth multiplying cell is combined and connected to the D input and the inverse output of the third trigger, the C input of which is connected to the output of the third reversible counter, the inputs of which are added and subtracted with the inverse outputs of the fourth and fifth multiplying cells, the input of the fourth reversible counter is connected to the inverse output of the sixth multiplying cell, the third input of which is combined with the third input of the fourth multiplying cell and the information inputs of all reversible counters are connected to the inputs set device coefficients.