KR980004534A

KR980004534A - Audio signal delete device of car stereo

Info

Publication number: KR980004534A
Application number: KR1019960020388A
Authority: KR
Inventors: 홍종면
Original assignee: 김영귀; 기아자동차 주식회사
Priority date: 1996-06-07
Filing date: 1996-06-07
Publication date: 1998-03-30

Abstract

본 발명은 카스테레오의 음성신호 삭제장치에 관한 것으로 특히, 기존의 카스테레오에 설치된 키입력부(3)에는 음성신호의 출력을 원하지 않을 때 사용자에 의해 선택적으로 조작되는 음성신호 삭제 스위치(31)를 설치하고, 상기 모드 선택부(8)와 볼륨부(9) 사이에는 마이컴(5)에서 소정의 제어신호가 출력되면 모드 선택부(8)에서 출력되는 좌/우 음향신호에 대한 위상을 비교하는 좌/우 위상 비교부(11)를 설치하며, 상기 좌/우 위상 비교부(11)의 일측 출력단자와 볼륨부(9)의 일측 입력단자 사이에는 타측 출력단자에서 출력되는 음성신호와 그 위상이 반대가 되도록 음성신호의 위상을 반전시켜 주는 위상 반전기(12)를 부가시켜 카스테레오를 통해 소정의 음악을 청취하던 중 가수들의 노래소리 청취는 원하지 않고 백음악만 청취를 원하여 음성신호 삭제 스위치를 간단히 작동시키면, 좌우측에서 출력되는 음성신호가 상호 상쇄되어 전혀 출력되지 않고 백음악만 출력되므로 이 백음악을 따라 노래 연습등을 원활히 실시할 수 있어 제품의 신뢰도를 향상시킬 수 있는 것이다.The present invention relates to an apparatus for deleting a voice signal of a car stereo, and in particular, the key input unit (3) installed in an existing car stereo is provided with a voice signal deletion switch 31 which is selectively operated by a user when the voice signal is not output. When a predetermined control signal is output from the microcomputer 5 between the mode selector 8 and the volume unit 9, the left / right comparing the phases of the left / right sound signals output from the mode selector 8 may be compared. The right phase comparison unit 11 is provided, and the phase of the audio signal output from the other side output terminal is opposite between the one output terminal of the left / right phase comparison unit 11 and the one input terminal of the volume unit 9. Add a phase inverter 12 which inverts the phase of the voice signal so that the voice signal of the singer is not desired to listen to the song of the singer while listening to the predetermined music through the car stereo. When the switch is simply operated, the audio signals output from the left and right sides are mutually canceled and only the white music is output without being outputted at all. Thus, the practice of singing along the white music can be performed smoothly, thereby improving the reliability of the product.

Description

Audio signal delete device of car stereo

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

제1도는 본 발명 장치의 블록 구성도이다.1 is a block diagram of an apparatus of the present invention.

Claims

A tuner 2 which tunes to a broadcasting station desired by the user; A key input unit (3) provided with various keys necessary for operation of the castero; A display unit 4 for displaying time, a broadcast channel, a reception frequency, and a mode currently in operation; A microcomputer 5 which performs overall control of the system through a predetermined program; A compact disc reproducing unit 6; A tape reproducing unit 7; A mode selector 8 for selecting a predetermined mode among a radio mode, a tape mode and a compact disc mode to output their sound signals to the left and right channels; A volume unit 9 for determining an output level of the sound signal; In a stereo having a power amplifier 10 for amplifying a sound signal output through the volume unit to a predetermined level and output through the left and right speakers (R-SP, L-SP), the key input unit (3) Has a voice signal deleting switch 31 which is selectively operated by the user when the user does not want the output of the voice signal. Between the volume units 9, when a predetermined control signal is output from the microcomputer 5, a left / right phase comparison unit 11 for comparing the phases of the left / right sound signals output from the mode selector 8 is provided. The phase of the audio signal is inverted between the one output terminal of the left / right phase comparison unit 11 and the one input terminal of the volume unit 9 so that the audio signal output from the other output terminal is reversed. Giving phase inverter (12) Deletion of the car stereo audio signal and wherein the visible turning.

※ Note: It is to be disclosed based on the initial application.