KR970056802A

KR970056802A - Automatic horizontal scan interval adjusting device for television receiver

Info

Publication number: KR970056802A
Application number: KR1019950049745A
Authority: KR
Inventors: 서기준
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-12-14
Filing date: 1995-12-14
Publication date: 1997-07-31

Abstract

본 발명은 시청자의 시청위치를 감지하여 이를 근거로 전자빔의 수평주사간격을 자동으로 조정하도록 된 텔레비전 수상기의 ㅅㄹ 수 ㄴ주사간격 자동 조정장치에 관한 것으로, CRT의 전자총으로부터 주사되는 전자빔을 좌ㆍ우 방향으로 수평편향시키기 위한 수평편향코일과, 이 수평편향코일에 수평편향전류를 공급하는 수평편항구동 수단 및 핀쿠션보정을 위해 상기 수평편향전류파형을 변화시키는 핀쿠션모정회로를 구비한 텔레비전을 수상기에 있어서; 시청자의 우치를 감지하여 시청자 감지여부에 따라 소정 감지신호를 출력하는 시청자위치 감지수단과, 화면 우변부의 수평주사간격이 소정치 만큼 넓어지도록 설정된 수평편향데이터를 저장하는 제1모드 편향데이터저장수단, 화면 좌변부의 수평주사간격이 소정치 만큼 넓어지도록 설정된 수평편향데이터를 저장하는 제2모드 편향데이터저장수단, 소정 편향데이터를 근거로 수직편향 및 수평편향을 위한 소정 PWM신호를 출력하는 편향IC, 이 편향IC로부터 출력되는 PWM신호를 적분하여 상기 핀쿠션보정회로측으로 핀쿠션보정을 위한 소정 포물선파형을 출력하는 포물선파형발생수단, 및 상기 시청자위치 감지수단으로부터 출력되는 감지신호에 따라 상기 편향IC의 내부메모리에 해당 모드의 편향데이터를 세트시킴으로써 화면 좌측 4ㅗ는 우측 모서리부분의 수평주사간격을 조정하도록 제어하는 제어수단을 포함하여 구성된 것을 특징으로 한다.The present invention relates to a device for automatically adjusting the scanning interval of a television receiver which detects a viewer's viewing position and automatically adjusts the horizontal scanning interval of the electron beam based on the same. The present invention relates to an electron beam scanned from an electron gun of a CRT. A television comprising a horizontal deflection coil for horizontal deflection in a direction, a horizontal deflection drive means for supplying a horizontal deflection current to the horizontal deflection coil, and a pincushion correction circuit for changing the horizontal deflection current waveform for pincushion correction. ; A first position deflection data storage means for detecting a viewer's declination and outputting a predetermined detection signal according to the viewer's detection and a horizontal deflection data set to widen the horizontal scanning interval of the right side of the screen by a predetermined value; A second mode deflection data storage means for storing horizontal deflection data set so that the horizontal scanning interval of the left side of the screen is widened by a predetermined value; a deflection IC for outputting a predetermined PWM signal for vertical deflection and horizontal deflection based on the predetermined deflection data; Parabolic waveform generating means for integrating the PWM signal output from the deflection IC and outputting a predetermined parabolic waveform for pincushion correction to the pincushion correction circuit side, and in the internal memory of the deflection IC according to a detection signal output from the viewer position detecting means. By setting the deflection data of the mode, the left 4 ㅗ of the screen is the right edge And control means for controlling so as to adjust the horizontal scanning interval of the molecular features that are configured.

Description

Horizontal Scan Interval Automatic Adjustment Device of Television Receiver

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

제2도는 일반적인 TV의 출력화면과 본 발명에 따른 화면출력의 차이를 설명하기 위한 도면,2 is a view for explaining the difference between the output screen of a typical TV and the screen output according to the present invention,

제4도는 본 발명의 1실시예에 따른 텔레비전 수상기의 수평 주사간격 자동 조정장치를 나타낸 블럭구성도,4 is a block diagram showing an apparatus for automatically adjusting a horizontal scanning interval of a television receiver according to an embodiment of the present invention;

제5도는 제4도에 도시된 시청자위치 감지부(23)의 원적외선센서(S1~S3) 설치예를 나타낸 도면.FIG. 5 is a diagram showing an example of installing far infrared sensors S1 to S3 of the viewer position detecting unit 23 shown in FIG.

Claims

A horizontal deflection coil for horizontally deflecting the electron beam scanned from the electron gun of the CRT in a left and right direction, a horizontal deflection driving means for supplying a horizontal deflection current to the horizontal deflection coil, and a change in the horizontal deflection current waveform for pincushion correction. A television receiver having a pincushion correction circuit; A first mode deflection data storage means for sensing a viewer position and outputting a predetermined detection signal according to whether the viewer is detected, and horizontal deflection data set so that the horizontal scanning interval of the right side of the screen is narrowed by a predetermined value; A second mode deflection data storage means for storing horizontal deflection data; a deflection IC for outputting a predetermined PWM signal for vertical deflection and horizontal deflection on the basis of the predetermined deflection data; A parabolic waveform generating means for integrating the PWM signal output from the deflection IC and outputting a predetermined parabolic waveform for pincushion correction to the pincushion correction circuit, and the detection signal output from the viewer position detecting means. By setting the deflection data of the mode in memory, Television horizontal scanning interval automatic adjustment device of the receiver, characterized in that configured to include a control unit that controls to adjust the horizontal scanning intervals of the Li part.

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