SU1571572A1 - Device for presentation of information on screen of television indicator - Google Patents

Abstract

The invention relates to automation and computing and can be used in devices for displaying textual and graphical information on a CRT, in particular in computer displays. The aim of the invention is to increase the reliability of the device. The goal is achieved by the fact that the device containing the block 1 mapping, character generator 2, registers 3, 5, generator 4 pulses, triggers 6-11, television indicator 12, one-shot 13, element 14 OR-NOT 15, element AND-OR-NOT and the inverter 17 with their connections, the trigger 18, the element OR-NOT 19 and the element OR 20 with the necessary connections are introduced. The introduction of the elements improves the reliability of the device, since provides recording and recovery of the set synchronization on each cycle of the device operation. 2 Il.

Description

Pian

2zian

Editor T. Lazorenko

Compiled by L.Abrosimov Tehred L. Serdyukova

Fiyo.2

Proofreader M. Pojo

Claims (1)

Claim A device for displaying information on a television indicator screen containing a pairing unit, the information input of which is the device’s information input, the outputs of the first and second groups of the pairing unit are connected to the information and address inputs of the character generator, the first output of the pairing unit is connected to the control input of the character generator, the outputs of which are connected to the information input of the first register, the clock input of which is connected to the output of the pulse generator connected to the clock inputs in of the second register and the first trigger, the output of which is connected to the control inputs of the first and second registers, of the second and sixth triggers, the clock inputs from the second to the sixth triggers are connected respectively to the second and sixth outputs of the interface unit, the seventh output of which is connected to the frame synchronization input of the television indicator, the line scan input of which is connected to the output of a single-shot, the input of which is connected to the direct output of the sixth trigger, the backlight control input of the television indicator is connected to the direct output of the fifth trigger, the video signal of the television indicator is connected to the output of the first HJM-HE element, the first input of which is connected to the inverse output of the fourth trigger, the second input of the first IPI element is NOT connected to the output of the NAND element, first 1571572. the input of which is connected to the direct output of the third trigger, the second input of the AND-NOT element is connected to the output of the AND-OR-NOT element, the first and second inputs of which are connected respectively to the inverse and direct outputs of the second trigger, the third input to the AND-OR-NOT element is connected to the output of the first register connected to the input of the inverter, the output of which is connected to the fourth input of the AND-OR-NOT element, for the purpose. The reason is that, to increase the reliability of the device, the seventh trigger, the second OR-NOT element and the OR element, the output of which is connected to the control, are introduced. to the input of the first trigger, the first 5 input of the OR element is connected to the first output of the second register, the group outputs of which are connected to the inputs of the second OR-NOT element, the output of which is connected to the second input of the ed OR element, the second and third outputs of the second register are connected respectively to the installation input and the reset input of the seventh trigger, the output of which is connected to the clock input of the interface unit. , FIG. 2