SU1553968A1 - Information input device - Google Patents

Abstract

The invention relates to computing and can be used to enter discrete information into computers in automated information processing systems. The aim of the invention is to increase the reliability of the input information by blocking the correspondence in the triggers of the second group of the next piece of information, if the current information is not transmitted to the computer. The device contains the first 1 and second 2 triggers, groups of triggers 3, 4, information inputs 5, information outputs 6, pulse generator 7, first element 8, first pulse generator 9, pulse distributor 10, switch 11, element AND 12, the second element And 13, the third trigger 14, the second pulse shaper 15, the display element 16, the synchronization input 17, the synchronization output 18, the control input 19. The proposed device improves the reliability of the input information and allows you to estimate the maximum possible flow of information at the input troystva. 1 il.

Description

The invention relates to computing and can be used to input discrete information into computers in automated information processing systems.

The aim of the invention is to increase the reliability of the input information,

The drawing shows a block diagram of the device.

The device contains the first 1 and second 2 triggers, the first 3 and second | 4 groups of triggers, information inputs 5, information outputs 6, pulse generator 7, first element 8, the first driver 9 pulses, distributor 10 pulses, switching The torus 11, the IS-NOT 12 element, the second element. And 13, the third trigger 14, the second driver 15 pulses, the display element 16, the synchronization input 17, the synchronization output 18, the control input 19.

The information input device operates as follows.

The initial state of the device is taken to set all the triggers to the zero state.

Input Signals Received by

SYNCHRONIZING 17 AND INFORMATION

These five inputs of the device, with the leading edge, set trigger 1 and the corresponding triggers of group 3 to one state.

High potential from the direct output of the trigger 1 is fed to the D input of the trigger 2 and to the input of the And 8 element, allowing the pulses from the generator 7 to pass through the And 8 element to the counting input of the distributor 10. A high potential at the corresponding output of the distributor 10 pulses is proportional to the number of pulses received at the synchronous input, and is the delay time relative to the leading edge of the clock signal. Depending on the type of information entered, switch 11 is used to select the signal delay and output it to the input elements AND 13 and IS-NOT 12. If trigger 2 is in the zero state (the information on the second trigger is not recorded at this moment) then, from the switch, the high level signal through the element I 13 enters the second pulse shaper 15, which generates a pulse of positive polarity. According to this impulse

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five

information from the synchronization input trigger 1 and from the triggers of the first group 3 is rewritten to the synchronization output trigger 2 and to the second group 4 triggers, respectively. At the direct output of the trigger 2, a high potential is established, which is fed to the input of the first shaper 9 pulses and to the output 18 of the device synchronization and is a sign of the readiness of the information for transmission to the computer. The pulse shaper 9 generates a negative pulse and sets to the zero state the triggers of the first group 3, the input trigger 1 of the synchronization and the distributor 10, i.e. establishes readiness to receive the next word.

The reception of the information word of the computer from the information outputs 6 of the device is confirmed by issuing a signal to the device via control input 19, which sets the triggers 2, 4 and 14 to the initial zero state and allows copying information from the first group triggers to the second group triggers.

In the case of the arrival of a signal from the switch when the device has not yet managed to transmit information from the second group of triggers to the computer, the low potential from the inverse output of synchronization trigger 2 prohibits copying information from the first group of triggers 3 to the second group of triggers 4 and, thus, protects non-transferred information from overwriting with new information. In this case, the signal from the switch through the IS-NO 12 element sets the trigger 14 to one state and the information overflow indicator 16 turns on, indicating that the information is overflowed when entered into the computer.

The indicator is a digital counter, a decoder and an indicator. For the indicator on IN8-2 lamps, decoder type 155ID1 and digital counters 155ИЁ2 are used. For semi-conductor seven-segment display elements of the type ALS320A, K514ID1 decoders and K15IE6 digital meters are used.

When the next information word arrives at the device, the process is repeated.

Compared with the known, the proposed device increases the validity of the input information and allows to estimate the maximum possible information flow at the device input by introducing the pulse former, the NAND element, the trigger and the display element, and also increases the reliability of the device operation by introducing the AND element and the pulse former.

Formula

the invention

An information input device comprising a pulse generator, a pulse distributor whose outputs are connected to the switch inputs, the first trigger whose clock input is the device sync input, the reset reset input of the first trigger is connected to the reset trigger inputs of the first group, and the output of the second information input a trigger whose direct input is connected to the first input of the NAND element and is the device sync output, the clock inputs of the first group of flip-flops are information inputs and the device triggers the first group of outputs coupled to respective data inputs of the second group of flip-flops, the clock inputs of which are connected to the clock input of the second flip-flop whose reset input is connected to a reset input

triggers of the second group and is the control input of the device; the outputs of the second group of flip-flops are information outputs of the device, characterized in that, in order to increase the reliability of the input information, the first and second elements I, the first and second pulse factors, the third trigger and the display element, the input of which is connected to the output of the third trigger, the reset input of which is connected to the reset input of the second trigger, and

5 the installation input is connected to the output of the NAND element, the second input of which is connected to the switch output and the first input of the second element AND, the second input of which is connected to the reverse output of the second trigger, the third input of the second element AND is connected to the output of the pulse generator and the first input of the first element I, the second input of which is connected to the output of the house of the first trigger, the output of which. connected to the clock input of the pulse distributor, the reset input of which is connected to the reset input of the first trigger and the output of the first pulse former, the input of which is connected to the output of the second trigger, the clock input of which is connected to the output of the second pulse generator I.

Compiled by A.I. Alekseev. Editor L.Veselovska. Tehred M.Didyk. Corrector V.Kabatsiy

Order 457

Circulation 568

VNIIPI State Committee for Inventions and Discoveries under the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, 4/5 Raushsk nab.

Claims (1)

Claim A device for inputting information, comprising a pulse generator, a pulse distributor, the outputs of which are connected to the inputs of the switch, a first trigger, the clock input of which is a synchronization input of the device, the reset input of the first trigger 20 ger is connected to the reset inputs of the triggers of the first group, and the output connected to the data input of the second ¹ trig- ger, direct input is connected to a first input of aND-NO element 25 and yav- wish to set up the output of the synchronization, the clock inputs of flip-flops of the first group are information the inputs of the device, the outputs of the triggers of the first group are connected to the information inputs of the corresponding triggers of the second group, the clock inputs of which are connected to the clock input of the second trigger, the reset input of which is connected to the reset inputs of the triggers of the second group and is the control input of the Device, the output, of the triggers of the second groups are information outputs of the device, characterized in that, in order to improve the reliability of the input information, the first and second elements of And, the first and second are formed pulses, the third trigger and an indication element, the input of which is connected to the output of the third trigger, the reset input of which is connected to the reset input of the second trigger, and the installation input is connected to the output of the NAND element, the second input of which is connected to the output of the switch and the first input of the second element And, the second input of which is connected to the inverse output of the second trigger, the third input of the second element And is connected to the output of the pulse generator and the first input of the first element And, the second input of which is connected to the output of the first trigger, output which is connected to the clock input of the pulse distributor, the reset input of which is connected to the reset input of the first trigger and the output of the first pulse shaper, the input of which is connected to the output of the second trigger, the clock input of which is connected to the output of the second pulse shaper, the input of which is connected to the output of the second element AND. Compiled by A.I. Alekseev