KR970014248A

KR970014248A - TV audio signal output switching device

Info

Publication number: KR970014248A
Application number: KR1019950026980A
Authority: KR
Inventors: 권용순
Original assignee: 배순훈; 대우전자주식회사
Priority date: 1995-08-28
Filing date: 1995-08-28
Publication date: 1997-03-29

Abstract

본 발명은 텔레비전 음성신호의 출력전환장치에 관한 것으로, 텔레비전 음성신호를 키입력부의 출력전환키의 지정에 의해 마이콤(11)의 제어하에 텔레비전 스피커 또는 오디오 시스템측으로 인가되도록 하는 스위칭부(23)가 구비되고, 상기 스위칭부(23)은 R/L채널의 음성신호가 각 콜렉터측에 접속되어 상기 키입력수단의 출력전환키의 비조작시에는 항상 R/L채널의 음성신호가 텔레비전 스피커측으로 인가되어 재생되도록 하고, 각 베이스측에 저항을 통해 사기 스위칭신호가 인가되면 ON구동되어 R/L채널 음성신호를 각 에미터와 저항과의 사이에서 오디오시스템측으로 스위칭되도록 하는 제1 및 제2트랜지스터와, 그 오디오시스템측으로 스위칭되는 음성신호를 저항에 의한 증폭율로 증폭하는 제1 및 제2증폭기를 포함하여 구성되어, 텔레비전 음성신호를 전원제어하에 상기 오디오시스템측으로 절환하여 고음질로 재생되도록 하는 것이다.The present invention relates to an output switching device for a television audio signal, comprising: a switching unit (23) for applying a television audio signal to a television speaker or an audio system under control of the microcomputer 11 by designating an output switching key of a key input unit; The switching unit 23 is provided with audio signals of the R / L channel connected to each collector side, and the audio signals of the R / L channel are always applied to the television speaker side when the output switching key of the key input unit is not operated. First and second transistors which are driven when the fraudulent switching signal is applied to each base side through a resistor to switch the R / L channel audio signal to the audio system side between each emitter and a resistor. And first and second amplifiers for amplifying the voice signal switched to the audio system side at an amplification rate by the resistance. Is switched to the audio system side under power control so as to be reproduced with high sound quality.

Description

TV audio signal output switching device

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

제1도는 본 발명의 일실시예에 따른 텔레비전 음성신호의 출력절환장치를 설명하는 블럭구성도.1 is a block diagram illustrating an output switching device of a television audio signal according to an embodiment of the present invention.

Claims

A television for reproducing a video signal and an audio signal and reproducing the same by a speaker and a CRT apparatus, comprising: key input means having an output switching key for switching and outputting the audio signal to an external audio system, and output by the key input means; A microcomputer for outputting a switching signal for controlling an external output of the audio signal when switching is instructed, and a switching means for switching the output of the audio signal under control of the microcom Switching device.

2. The switching means according to claim 1, wherein the audio signal of the R / L channel is connected to each collector side so that the audio signal of the R / L channel is always directed to the television speaker side when the output switching key of the key input means is not operated. First and second transistors to be applied and reproduced, and to be driven when the switching signal is applied to each base side through a resistor so that the R / L channel audio signal is switched between the emitter and the resistor to the audio system side. And first and second amplifiers for amplifying the audio signal switched to the audio system side at an amplification rate by the resistance.

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