SU1495844A2 - Character line generator for character generator with tv scanning - Google Patents

Abstract

The invention relates to automation and computing, and is intended to convert parallel binary code to serial code in television-scanned devices. The purpose of the invention is to increase the reliability of the driver by reducing the probability of failures by dividing the moments of receiving information and switching its modes. An element HE 12 and a trigger 13 with corresponding functional connections are introduced into the driver. 1 il.

Description

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The invention relates to automation and computing, a predisposition to convert parallel binary code to a serial code in television-scanned devices, and is an improvement to the device by author. N 1264233.

; The purpose of the invention is to increase the efficiency of the shaper by reducing the probability of failures by increasing the reception of information and

On the trailing edge of the nearest clock pulse, the unit is recorded in the trigger 13, and the signal from this trigger switches register 3 via input 7 of the control — recording the parallel code to the information recording mode

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switch its modes.

The drawing shows a flowchart 15 of register 3. A character string formator for To input 6 receives information in a signal generator with a television scan.

The former contains a block of 1 constant memory, a generator of 2 clock pulses, and a shift register 3.

The positions denote the informational | inputs of the first group of register 3, and the position 5 denotes the formational inputs of the second group, the positions 6 and 7 the informational input and the input of the control of the register 3.

The shaper contains an element B. Positions 9-11 denote the output30 Formula

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the successive code is given a logical 1 signal,

In this case, the information is recorded in the register 3 or the information is shifted along the leading edge of clock pulses, and the switching of the modes of the register 3 operation - along the falling edge.

Thus, these two points are separated in time, and therefore the probability of malfunctioning of the driver is reduced, and its reliability is increased.

| tsy register 3.

I The shaper also contains an element NOT 12 and a trigger 13. I The device works as follows.

The pulses from the generator 2 output of 35 clock pulses shift the parallel code towards the bits with large numbers, provided that the input 7 of the recording control register 3 contains a signal 40 of logic O, and provide the writing of the parallel code with the input of the first and second 5 groups into the register 3, provided that the DZ signal of logical 1 is set at the register control input 7.

The information recorded in the register 3 at the first cycle is shifted along the front 3.

Character string generator for character generator with television scan over aut. St. No. 1264233, which is based on the fact that, in order to increase the reliability of the former by reducing the likelihood of failures by separating the moments of receiving information and switching its modes, the element NOT and the trigger are entered into it, the element input is NOT connected to the output of the generator clock pulses, the output of the element is NOT connected to the trigger input of the trigger, the information input of which is connected to the output of the element AND, the output of the trigger is connected to the recording control input of the registry.

to it, the pulse front from the generator output 2 clock pulses in the direction of the higher bits until the level of logic 1 is set at the output of the element And 8.

On the trailing edge of the nearest clock pulse, the unit is recorded in the trigger 13, and the signal from this trigger switches register 3 via input 7 of the control — recording the parallel code to the information recording mode

   register 3. To the input 6 of receiving information in

the successive code is given a logical 1 signal,

In this case, the recording of information in the register 3 or the shift of information occurs on the leading edge of clock pulses, and the switching of the modes of operation of the register 3 - on the falling edge.

Thus, these two points are separated in time, and therefore the probability of malfunctioning of the driver is reduced, and its reliability is increased.

and 3 O r e t i n

Character string generator for character generator with television scan over aut. St. No. 1264233, which is due to the fact that, in order to increase the reliability of the driver by reducing the likelihood of failures by separating the moments of receiving information and switching its modes, the element NOT and the trigger are entered into it, the element input is NOT connected to the output of the clock generator , the output of the element is NOT connected to the trigger input of the trigger, the information input of which is connected to the output of the element AND, the output of the trigger is connected to the input of the register write control.

Claims (1)

Claim Shaper line character for character generator with a television scan by ed. St. No. 1264233, characterized in that, in order to increase the reliability of the shaper by reducing the likelihood of failures by spacing the moments of receiving information and switching its modes, an element HE and a trigger are inserted into it, the input of the element HE is connected to the output of the clock generator, output of the element is NOT connected to the clock input of the trigger, the information input of which is connected to the output of the AND element, the output of the trigger is connected to the input of the register write control.