SU792242A1 - Multichannel apparatus for setting data - Google Patents

Description

The invention relates to computing and can be used in input devices for computers. A device for inputting information is known, which contains in each channel two triggers, two AND elements, an inverter and a gate, as well as an inverter and a delay line in the common control circuits. The disadvantages of the known device are a large amount of equipment and low speed due to the use of the backing line 1. The closest technical solution to the invention is a multi-channel information input device containing in each channel a reception trigger, the output of which is connected to the first input of the first element AND, the issuing trigger, the input and output of which are connected respectively to the output of the first element And And connected to the second input and output respectively to the read input and information output of the device, the output of the second element I connected to the first input of the receive trigger, the second input of which is connected a data input device, second inputs of first AND gate and the flip-flop issuing respectively connected to a control input and an input device 2 quench. The disadvantage of this multichannel device. The information input PND is low speed. The purpose of the invention is to increase speed by introducing a single act gating system and simplifying the design of the device. This goal is achieved by introducing two inverters into the multichannel information input device, the input of the first of which is the synchronization input of the device, and the output is connected to the C input of the second flip-flop of each channel and the input of the second inverter, whose output is connected to the second input element And each channel, and the D-input of the second trigger is connected to the output of the first trigger. In the drawing, a functional diagram of a multi-channel information input device is shown. The multichannel information input device contains in each channel the trigger 1 reception, the trigger 2 vtsdachy, the element And 3, information

input 4 and information output 5 of the device, and inverters 6.7 and sync input devices in common control circuits.

The output of the trigger 1 reception is connected to the D-input of the trigger 2 output, the output of which is connected to the first input of the element And 3 4 devices. Input ipraepTopa 6 is connected to input 8 of the reading device, and the output is connected to the C input of trigger 2 for each channel output and the input of inverter 7, the output of which is connected to the second input of the And 3 element of each channel.

The multi-channel information input device operates as follows.

In the absence of a zo pulse, the input 8 of the device reads a signal of logical zero (O) at the input of the inverter 6, from the output of which the signal of the logical unit (1) is fed to the C input of the trigger 2 of the output. In this case, the signal at the output of the trigger 2 of the output repeats the signal at the D input of this trigger.

Let us take as the initial zero state of the trigger 1 reception of each channel. The leading edge of the pulse signal received on the information input 4 of any channel sets the trigger 1 of the reception of this channel into one state. The signal 1 from the output of the trigger 1 reception passes through the trigger 2 issuing the input element And 3, the second input of which is prohibited by the signal O from the output of the inverter 7. Therefore, the information output 5 of the device stores the signal O.

When a pulse arrives at the input 8 of the reading device, the signals O and 1, respectively, appear at the outputs of the inverters 6 and 7, respectively, arriving at the C input of the output trigger 2 and the second input of the And 3 element of each channel. A flip-flop 2 triggers a signal from the output of flip-flop 1 at the time of a negative signal front (from 1 to O) at the C input of this flip-flop and maintains this state for the duration of the read pulse. As a result, the information output 5 of the channel, the issuing trigger of which is set to the single state, passes through the element 3 the signal 1. This signal arrives at the R input of the receive trigger 1, which is set to the zero state. When a pulse appears at the information input 4 during the pulse action at the input 8 of the reading device, the reception trigger 1 is set to one, but the signal 1 from the output of this trigger n passes to the output of the output trigger 2.

After the end of the pulse at the input 8 of the reading, the signal O passes through the output of the inverter 7, which closes the element FROM each channel. Thus, the pulse duration at the information output 5 is equal to the duration. pulse at the input 8 of the reading device.

Introduction to the multichannel device for entering information of two inverters of new connections between the elements made it possible to increase the speed of the device and simplify its design.

Claims (2)

1. Authors certificate of the USSR, № 410383, cl. G 06 f 3/00, 1972. 2. USSR author's certificate number 587464, cl. G 06 F 3/00, 1976 (prototype).