KR960043801A

KR960043801A - Automatic adjustment of screen size according to viewing distance

Info

Publication number: KR960043801A
Application number: KR1019950013784A
Authority: KR
Inventors: 김정수
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-05-30
Filing date: 1995-05-30
Publication date: 1996-12-23

Abstract

본 발명은 시청거리에 따른 화면크기의 자동 조절장치에 관한 것으로, 그 구성은 안테나(A)에서 수신한 방송전파 중에서 소망하는 채널의 방송전파를 선택하여 중간주파(IF)신호로 변환한 다음 출력시키는 튜너(50)와, 상기 튜너(50)에서 출력되는 중간주파신호를 증폭출력시키는 중간주파수증폭부(52)와, 상기 중간주파수증폭부(52)에서 출력되는 방송신호 중에서 영상신호를 검파하는 영상검파부(56), 상기 중간주파수증폭부(52)에서 출력되는 방송신호 중에서 음성신호를 검파하는 음성검파부(54), 상기 영상검파부(56)에 검파출력된 영상신호을 영상신호처리하는 영상신호처리부(60), 상기 음성검파부(54)에서 검파출력된 음성신호를 음성신호처리하는 음성신호처리부(58), 상기 영상신호처리부(60)에서 처리된 영상신호를 증폭하여 음극선관(CRT)으로 인가시키는 영상증폭부(64), 상기 음성신호처리부(58)에서 처리된 음성신호를 증폭하여 스피커(SP)로 인가시키는 음성증폭부(62), 사용자가 희망하는 가능의 선택과 화면크기가 자동으로 조절되도록 하는 화면크기 자동 조절모드를 설정하기 위한 키를 구비하고 있는 키입력장치(66), 텔레비전의 화면과 시정차와의 거리를 감지하는 거리감지부(70) 및, 상기 키입력장치(66)에서 화면크기 자동 조절모드가 설정되면 상기 거리감지부(70)에서 감지된 시청자와의 거리에 따라 선택된 화면크기 제어신호를 상기 영상신호처리부(60)에 인가하여 화면크기가 조절되도록 하는 마이컴(68)을 포함하여 구성된 것을 특징으로 하여, 텔레비전의 시청거리가 가까울수록 화면의 크기를 작게해 주므로서 시력을 보호하고 시청에 안정감을 주는 효과가 있다.The present invention relates to a device for automatically adjusting the screen size according to the viewing distance, the configuration of which is selected from the broadcast waves received from the antenna (A) broadcast signal of the desired channel is converted into an intermediate frequency (IF) signal and then output A video signal is detected from a tuner 50, an intermediate frequency amplifier 52 for amplifying and outputting an intermediate frequency signal output from the tuner 50, and a broadcast signal output from the intermediate frequency amplifier 52. Image signal processing unit 56, the audio signal detection unit 54 for detecting an audio signal from the broadcast signal output from the intermediate frequency amplifier 52, and the video signal processing the video signal detected by the image detection unit 56 An image signal processor 60, an audio signal processor 58 for processing audio signals detected by the audio detector 54, and an image signal processed by the image signal processor 60 are amplified to provide a cathode ray tube ( CRT) The video amplifier 64, the audio signal processing unit 62 to amplify the audio signal processed by the audio signal processing unit 58 to the speaker (SP), the user's desired selection and screen size automatically A key input device 66 having a key for setting the screen size automatic adjustment mode to be adjusted, a distance detecting unit 70 for detecting the distance between the screen of the television and the time difference, and the key input device 66 When the automatic screen size adjustment mode is set, the microcomputer 68 applies the screen size control signal selected according to the distance from the viewer detected by the distance sensing unit 70 to the image signal processor 60 to adjust the screen size. Characterized in that it comprises a, the closer the viewing distance of the television, the smaller the size of the screen, thereby protecting the vision and give a sense of stability to viewing.

Description

Automatic adjustment of screen size according to viewing distance

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제 2 도는 본 발명에 따른 텔레비전의 시청거리에 따른 화면크기의 자동 조절장치의 블럭구성도이다.2 is a block diagram of a device for automatically adjusting the screen size according to the viewing distance of a television according to the present invention.

Claims

A tuner 50 which selects a broadcast wave of a desired channel from among the broadcast waves received by the antenna A, converts it into an intermediate frequency (IF) signal, and outputs the tuner 50 and amplifies the intermediate frequency signal output from the tuner 50. An intermediate frequency amplifier 52 for outputting, an image detector 56 for detecting an image signal among the broadcast signals output from the intermediate frequency amplifier 52, and a broadcast signal output from the intermediate frequency amplifier 52 A voice detector 54 for detecting an audio signal, a video signal processor 60 for processing a video signal detected by the video detector 56, and a voice detected by the voice detector 54 Audio signal processing unit 58 for processing the audio signal signal, an image amplifier 64 for amplifying the video signal processed by the video signal processing unit 60 to the cathode ray tube (CRT), the audio signal processing unit 58 Amplifies the processed voice signal Voice input unit 62 to be applied to the picker (SP), a key input device 66 having a key for setting the screen size automatic adjustment mode so that the user selects the desired function and the screen size is automatically adjusted The distance detection unit 70 detects a distance between the screen of the television and the viewer, and when the automatic screen size adjustment mode is set in the key input device 66, the distance detection unit 70 according to the distance from the viewer detected by the distance detection unit 70. And a microcomputer (68) for adjusting the screen size by applying the selected screen size control signal to the image signal processing unit (60).

The analog / digital converter 60-1 of claim 1, wherein the video signal processor 60 converts the analog video signal detected by the video detector 58 into a digitalized video signal. Receiving the digital image signal converted by the digital converter (60-1) to create a screen size control unit (60-2) for adjusting the size of the screen according to the screen size control signal of the microcomputer 68, and to create a color signal of the screen The main automatic adjustment device for the screen size according to the viewing distance, characterized in that the configuration including a color signal processor (60-3).

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