SU1022149A2 - Device for comparing numbers - Google Patents

Abstract

DEVICE FOR COMPARISON NUMBERS on author. St. No. 484517, characterized in that, with expanding its functionality by forming a sig: alao equality of numbers, a third trigger has been introduced in n @ go, and the inputs of its ampli fi er and zero are connected to the control unit of the device and the single output of the first trigger, respectively, the zero input of the third trigger is connected to the input of the first element AND, and the single is the third output of the device.

Description

The invention relates to automation. and computer technology and can be used in the implementation of discrete automation and computer hardware to compare numbers represented by phase-pulse codes.

According to the main author. St. No. 484517, there is known a device for comparing numbers, which contains a clock generator, first and second triggers, first and second AND elements and an OR element, the first and second information inputs of the device being connected _ to the inputs of the first AND element and the OR element, respectively, whose outputs are connected respectively, with the inputs of the mouth, are the novices of the first trigger in the single and zero state, the unit output of which is connected to the input of the second ^ element AND, the output of which is connected to the input of the installation of the second trigger in the single state the single and zero 'outputs of which are the first and second outputs of the device, respectively, the first and second outputs of the clock generator © are connected to the inputs of the first and second elements AND, the control input of the device is connected to the input of the OR element and the input of setting the second trigger to the zero state f 1J.

A disadvantage of the known device is the possibility of fixing only two types of relations of the compared frequency: A ^ B, A7 / B 'without the possibility of a separate ¹ fixing of the relations A = B, A> B. The purpose of the invention is to expand the functionality of the device by forming a separate signal for equality of numbers.

This object is achieved in that the device for comparing the numbers entered the third flip-flop, the inputs of setting it to zero and the individual states are connected to the control input of the device and the unit output of the first flip-flop, respectively, zero ^r th output of the third flip-flop is connected to the * input of the first AND gate , and a single output is the third output of the device.

The drawing shows a diagram of the proposed device.

The device contains the first, second and third triggers 1,2 and 3, the first and second elements And 4 and 5, the OR element 6, the clock generator 7, having the first 8 and second 9 outputs, VNIIPI Order the first 10 and second 11 information inputs of the device , the control input of the device, the first, second and third

13.14 - 15 device outputs.

The device operates as follows. Before starting work, a signal is applied to the control input 12 of the device, which sets triggers 1-3 _ί0 to the zero state. The signals at the output 8 of the generator 7 appear in each cycle, and at the output 9 - after the end of the transmission of the next digit of the number. Numbers are transmitted by high digits

And go ahead.

If, during the transfer of a discharge, the signal at input 11 appears earlier than the signal at input 10, then the signal at input 10 will set triggers 1 and 3 to a single state, and when a pulse appears at output 9 of generator 7 and trigger 2, the outputs 13 and 15 of the device will be single signals, fe further the state of the triggers 2 and 3 can not change.

If the signal at input 11 appears later than the signal at input 10, then the signal at input 10 will set triggers 1 and 3 to one state, and then the signal at input 11 will set trigger 1 to zero, element 5 will be closed and trigger 2 will remain in zero condition. Single signals will be at outputs 14 and 15 of the device. The state of the triggers can no longer be changed, since the AND 4 element is closed due to the absence of a signal at the zero output of trigger 3.

If the signals at inputs 1.0 and 11 appear simultaneously, then trigger 1 will not go into a single state, since the pulse at the output 8 of the generator 7 is shorter than the pulses at the inputs 10 and 11. As a result, the state of the device will remain the same and the next bit will be analyzed.

Depending on how much weight is assigned to a particular transmission, discharge, number, pulse, which moment has arrived in the senior discharge earlier, it may be smaller or larger. The signals at the outputs of the device should be interpreted accordingly.

The proposed device has enhanced functionality, as it generates three types of signals (A> B, A <B, A "-B), which allows to expand its scope.

4045/41 Circulation 706 Subscription

Branch. PPP Patent, Uzhhorod, st. Project, 4

Claims (1)

DEVICE FOR COMPARING NUMBERS by ed. St. No. 484517, characterized in that, in order to expand its functionality by forming a signal: equality of numbers, a “third trigger” is introduced into it, and the inputs of setting it to zero and one state are connected to the control input of the device and the single output of the first trigger accordingly, the zero input of the third trigger is connected to the input of the first AND element, and a single output is the third output of the device. to u Jib CO> f