KR980004271A - Circuits and methods for improving the degaussing capability of monitors - Google Patents

Abstract

The present invention relates to a circuit and a method for improving the DEGAUSS function of a monitor, and more particularly, it relates to a circuit and a method for enhancing the DEGAUSS function of a monitor by effectively eliminating blurring and unevenness of color generated by a CRT screen To a degaussing circuit and method of a monitor for improving the degauss function.

Description

Circuits and methods for improving the degaussing capability of monitors

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FIG. 2 is a block diagram of a degaussing circuit according to the present invention. FIG.

3 is a detailed circuit diagram according to the implementation of FIG. 2; FIG.

FIG. 4 is a waveform view of each part of FIG. 3;

FIG. 5 is a flow chart illustrating a method for improving degaussing in accordance with the present invention. FIG.

FIG. 6 is a state diagram according to the implementation of FIG.

Claims (2)

1. A degaussing circuit used for eliminating spots and blurring of a monitor, comprising: a defogging switch used to remove faults and fuzziness of the monitor; a vertical deflection circuit for synchronizing the video signal displayed on the monitor; A microcomputer for receiving a switching signal output from the de-vizing switch and a vertical saw-tooth signal output from the vertical deflection circuit and outputting a de-embedding coil control signal; a microcomputer for inputting a de- Wherein the switching operation is performed by a relay switch drive circuit and a degaussing coil which is turned on and off by the relay switching drive circuit to limit the current. A step of inputting a vertical pulse, a step of counting a front-rising edge period of the vertical pulse, a step of accepting a key input for position adjustment, Counting a rising edge period of the vertical pulse at a center by operating a counter, and proceeding to a de-gasing operation of the de-gaining coil through a current according to a result of the counting. ※ Note: It is disclosed by the contents of the first application.