KR950013157A

KR950013157A - TV screen stabilization method and device

Info

Publication number: KR950013157A
Application number: KR1019930022302A
Authority: KR
Inventors: 백운길
Original assignee: 이헌조; 주식회사 엘지
Priority date: 1993-10-26
Filing date: 1993-10-26
Publication date: 1995-05-17

Abstract

본 발명은 티브이의 화면 안정화에 관한 것으로, 특히 영상디스플레이 빔이 주사되고 있을때 전원오프를 하거나 편향 관련 데이타를 아웃시키면 빔의 산란으로 인해 발생하는 스포트 현상을, 빔이 주사되고 있을때 전원오프 및 편향관련데이타의 아웃이 욕구되면 수직동기 신호를 검색하여 수직귀선기간에 전원오프 및 편향데 이터를 리플래시하여 빔의 산란을 방지함으로써 스포트 현상을 방지하고자 한 티브이의 화면 안정화에 관한 것으로서, 이러한 본발명의 목적은 크로마처리 및 편향부에서 검출되어 출력된 수직동기신호를 파형정형하여 출력하는 버퍼와, 키이매트픽스부로 부터 해당기능을 입력 받고 상기 버퍼로 부터 얻어진 수직 동기신호에 따라 전원 및 편향데이타 제어신호를 출력하는 마이콤을 구비하고, 수직귀선기간에 전원오프 및 편향데이타를 리플래시 함으로써 달성된다.The present invention relates to screen stabilization of TVs. In particular, when the video display beam is being scanned, power off or deflection-related data is turned off, the spot phenomenon caused by the scattering of the beam is detected. The present invention relates to screen stabilization of TVs which attempt to prevent spots by retrieving the vertical synchronization signal and refreshing the power-off and deflection data in the vertical retrace period to prevent beam scattering. The purpose of the present invention is to provide a buffer for waveform shaping and output of the vertical synchronization signal detected and output by the chroma processing and deflection unit, and a power and deflection data control signal according to the vertical synchronization signal obtained from the buffer by receiving the corresponding function from the key mat fix unit. It is equipped with a microcomputer to output the power, and in the vertical return period Is achieved by the direction data is refreshed.

Description

TV screen stabilization method and device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 적용되는 티브이의 화면 안정화 장치 구성도,2 is a block diagram of a TV screen stabilizer applied to the present invention,

제4도는 제2도의 각부 입, 출력 파형도,4 is a waveform diagram of each input and output of FIG.

제6도는 본 발명 티브이의 화면 안정화 방법을 설명하기 위한 신호 흐름도.6 is a signal flow diagram illustrating a screen stabilization method of the present invention TV.

Claims

Searching for the presence or absence of the vertical synchronization signal when the power is on, and searching for the power key input, presence or absence when the vertical synchronization signal is not input. And refreshing the power key and turning off the power by setting the power control terminal low when the power key search result is a power key input.

The method of claim 1, further comprising: retrieving the main loop counter value when the main loop counter value is non-zero when the main loop counter value is not 0, and when the main loop counter value is 0; Recording a predetermined value in and searching for the presence or absence of the power key input, and performing other functions if the power key input search result is not input; Screen stabilization method of the TV, characterized in that it further comprises the step of.

A buffer for waveform shaping and output of the vertical synchronization signal detected and output by the chroma processing and deflection unit, and a power supply and deflection data control signal according to the vertical synchronization signal obtained from the buffer and a corresponding function from the key matrix unit. TV's screen stabilization device characterized in that made of micom.

The method of claim 3, wherein the microcomputer refreshes the power control and deflection data during the retrace period of the vertical synchronization signal obtained from the buffer.

※ Note: The disclosure is based on the initial application.