KR930020387A

KR930020387A - V Automatic Twin Switching Input System

Info

Publication number: KR930020387A
Application number: KR1019920004637A
Authority: KR
Inventors: 김남돈
Original assignee: 이헌조; 주식회사 금성사
Priority date: 1992-03-20
Filing date: 1992-03-20
Publication date: 1993-10-19

Abstract

본 발명은 브이씨알 트윈 시스템의 입력 자동 절환장치에 관한것으로, 종래에는 튜너입력과 라인입력을 마이컴의 제어신호에 따라 선택하여 녹화하고, 외부스위치를 조작하여 시청할 입력을 선택하므로써 시청할 입력을 변화시킬때마다 외부스위치를 조작해야 하는 불편함이 있었다.The present invention relates to an input automatic switching device of a V-CAL twin system. In the related art, a tuner input and a line input are selected and recorded according to a control signal of a microcomputer, and an input to be viewed is changed by operating an external switch to change the input to be viewed. There was an inconvenience to operate the external switch every time.

이러한 점을 감안하여 본 발명에서는 튜너입력과 라인입력을 마이컴의 제어신호에 따라 선택하여 녹화할때 상기 라인입력의 영상신호를 증폭하여 화질을 개선시키고, 티브이에 출력할 신호를 상기 라인입력중의 고전위인재생신호에 따라 자동으로 선택하므로써 시청할 입력을 변화시킬때마다 외부 스위치를 조작할 필요가 없어 편리하다.In view of the above, the present invention amplifies the image signal of the line input when the tuner input and the line input are selected according to the control signal of the microcomputer to improve the image quality, and outputs a signal to be output to the TV. It automatically selects according to the high-potential playback signal, eliminating the need to operate an external switch each time you change the input to watch.

Description

V Automatic Twin Switching Input System

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

제1도는 종래 브이씨알 트윈 시스템의 입력 절환장치의 블럭도.1 is a block diagram of an input switching device of a conventional V2 Twin system.

제2도는 본 발명 브이씨알 트윈 시스템의 입력 자동 절환장치의 블럭도.Figure 2 is a block diagram of the input automatic switching device of the VR Twin system of the present invention.

Claims

A signal modulator 16 for modulating the broadcast signal received by the antenna ANTV, an intermediate frequency tuner 12 that detects the output of the signal modulator 16 and separates it into a video and audio intermediate frequency signal; Line connection unit 15 to which the CVC reproduced video and audio signals and the reproduced signal PB are input, a video signal amplifier 17 that amplifies the video signal of the line connection unit 15 by 6 dB, and a tuner mode. And the microcomputer 11 for outputting the control signal Th in accordance with the selection of the line mode and the voice of the intermediate frequency tuner 12 and the line connection unit 15 according to the control signal Th of the microcomputer 11; Switch to switch each video signal ), ( ) And the switch ( Audio signal from the And a voice processing unit 13 to output to the switch ( Image signal is separated into luminance and chroma signal and processed When the luminance / chromatic processing unit 14 and the high potential reproduction signal PB are applied, the audio and video signals of the line connection unit 5 are transmitted to the line connection unit 5 and the signal modulator 16. Output switch Input automatic switching device of V2 Twin system, characterized in that consisting of.

※ Note: This is to be disclosed by the original application.