KR980004553A

KR980004553A - How to switch the car audio mode

Info

Publication number: KR980004553A
Application number: KR1019960023719A
Authority: KR
Inventors: 김병도
Original assignee: 김주용; 현대전자산업 주식회사
Priority date: 1996-06-25
Filing date: 1996-06-25
Publication date: 1998-03-30

Abstract

본 발명은 카 오디오를 통한 라디오 방송 청취시, 잡음신호나 방송신호의 전계강도 세기에 따라 라디오 방송의 수신상태가 좋지 않은 경우 라디오 방송 모드에서 테이프 또는 DC 재생 모드로 자동전환할 수 있도록 한 오디오의 모드 전환방법에 관한 것이다. 본 발명은 카 오디오 시스템 내의 라디오 수신기를 통해 FM 라디오 방송을 수신하는 경우 멀티플렉서를 통해 출력되는 스테레오 신호의 깜박임 횟수를 카운트 하는 제1단계와, 상기 제1단계에서 카운트된 깜박임 횟수가 일정 횟수 이상인 경우라면 마이크로 컴퓨터를 통해 테이프 및 CD 재생부에 제어신호를 출력하는 제2단계와, 상기 제2단계의 마이크로 컴퓨터의 제어신호에 따라 테이프 및 CD 재생부가 테이프 또는 CD의 재생이 가능한지를 판단하는 제3단계와, 상기 제3단계에서 테이프 또는 CD의 재생이 가능하다면 라디오 방송모드에서 테이프 또는 CD 재생모드로 전환하여 테이프 또는 CD를 재생하는 제4단계와, 상기 제1단게에서 카운트된 깜빡임 횟수가 일정 횟수 이하인 경우와 상기 제3단계에서 테이프 또는 CD의 재생이 불가능한 경우, 라디오 방송을 계속 수신하거나 라디오 수신부의 전원을 자동으로 오프하는 제5단계로 수행된다.According to the present invention, when listening to a radio broadcast through car audio, if the radio broadcast reception is not good according to the noise signal or the electric field strength of the broadcast signal, it is possible to automatically switch from the radio broadcast mode to the tape or DC playback mode. It relates to a mode switching method. The present invention provides a first step of counting the number of blinks of a stereo signal output through a multiplexer when receiving an FM radio broadcast through a radio receiver in a car audio system, and when the number of blinks counted in the first step is a predetermined number or more. A second step of outputting a control signal to the tape and CD reproducing unit through the microcomputer, and a third step of determining whether the tape and CD reproducing unit can reproduce the tape or the CD according to the control signal of the microcomputer of the second step. And a fourth step of reproducing the tape or CD by switching from the radio broadcasting mode to the tape or CD reproducing mode if the tape or CD can be reproduced in the third step, and the number of flickers counted in the first stage is constant. If the number is less than the number of times and if the tape or the CD cannot be reproduced in the third step, radio broadcasting is performed. The fifth step is to continuously receive or automatically turn off the radio receiver.

Description

How to switch the car audio mode

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

제2도는 본 발명에 의한 카 오디오의 모드 전환 제어 흐름도.2 is a flowchart of mode switching control of car audio according to the present invention.

Claims

In the case of receiving an FM radio broadcast through a radio receiver in a car audio system, a first step of counting the electric field strength of the broadcast signal output through the multiplexer 20 and the number of flickers of the stereo signal according to the radio wave interference; If the number of blinks counted in the step is greater than or equal to a predetermined number of times, a second step of outputting a control signal to the tape and CD reproducing unit 40 through the microcomputer 40 and the control of the microcomputer 40 of the second step. A third step of determining whether the tape or CD can be played back according to the signal; and if the tape or CD can be played back in the third step, the tape and CD playback unit 50 switches from the radio broadcast mode to the tape or CD play mode. A fourth step of switching to play the tape or CD, a case where the number of blinks counted in the first step is equal to or less than a certain number of times, and in the third step, If the reproduction of the program or the CD is not possible, or to continue to receive the radio receiver (1) a method mode of the car audio conversion, characterized by performed by a fifth step of automatically off the power of the radio station.

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