KR970013664A

KR970013664A - Car Audio Volume Control

Info

Publication number: KR970013664A
Application number: KR1019950027251A
Authority: KR
Inventors: 임규태
Original assignee: 김광호; 삼성전자 주식회사
Priority date: 1995-08-29
Filing date: 1995-08-29
Publication date: 1997-03-29

Abstract

본 발명은 차량용 오디오 장치에 관한 것으로 특히, 차량 바퀴의 회전수를 감지하여 단위시간당 회전수가 증가하면 상대적으로 큰 전압을 발생시키고 회전수가 감소하면 상대적으로 큰 전압을 발생시키고 회전수가 감소하면 상대적으로 작은 전압을 발생시키는 회전수 감지 수단과, 오디오 기기에서 발생되는 음향데이타에 따른 전압신호와 상기 회전수 감지 수단에서 출력되는 가변적인 전압신호의 합 전압 크기를 소정치 증폭하여 출력하는 신호증폭수단 및 상기 신호증폭수단의 출력신호에 따라 상기 스피커를 통하여 출력되는 오디오신호의 음량을 조절하는 스피커 음량조정 수단을 포함하는 것을 특징으로 한다. 따라서, 본 발명에서는 차량용 오디오 음량 조절장치를 제공하여 종래 오디오의 볼륨이 수도조절됨에 따라 주행소음 발생시 운전자가 자주 볼륨조절 스위치를 작동하여야 하므로 안전사고의 위험을 감수하여야 하는 문제점을 해소하는 효과가 있다.The present invention relates to an in-vehicle audio device, and in particular, to detect the rotational speed of the vehicle wheel to generate a relatively large voltage when the number of revolutions per unit time increases, and generate a relatively large voltage when the number of revolutions decreases and relatively small when the number of revolutions decreases Rotation means for generating a voltage, Signal amplification means for amplifying and outputting a predetermined voltage amplitude of the sum of the voltage signal according to the acoustic data generated from the audio device and the variable voltage signal output from the rotation speed detection means and the And speaker volume adjusting means for adjusting the volume of the audio signal output through the speaker according to the output signal of the signal amplifying means. Therefore, according to the present invention, since the volume of the conventional audio is provided by providing a vehicle audio volume control device, the driver must frequently operate the volume control switch when driving noise occurs, thereby eliminating the problem of having to take the risk of a safety accident. .

Description

Car Audio Volume Control

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

제1도는 본 발명에 따른 차량용 오디오 음량 조절장치의 회로 구성도.1 is a circuit diagram of a vehicle audio volume control device according to the present invention.

Claims

In the audio volume control device for a vehicle having a speaker, the rotation speed detecting means for detecting the rotation speed of the vehicle wheel to generate a relatively large voltage when the number of revolutions per unit time increases, and generates a relatively small voltage when the number of revolutions decreases, Signal amplifying means for amplifying and outputting a predetermined voltage magnitude of a voltage signal according to sound data generated from an audio device and a variable voltage signal output from the rotation speed sensing means; And a speaker volume adjusting means for adjusting a volume of an audio signal output through the speaker according to the output signal of the signal amplifying means.

The apparatus of claim 1, wherein the signal amplifying means comprises: a first resistor for receiving and outputting a voltage signal according to volume data generated from an audio device; A second resistor for receiving and outputting an output signal of the rotation speed sensing means; A non-inverting data input terminal is connected to a ground terminal and an amplifier receives the sum of the voltages output from the first resistor and the second resistor to the inverting data input terminal and amplifies and inputs the speaker volume adjusting means; And a third resistor receiving the output signal of the amplifier and feedbacking the inverted data input to the inverting data input terminal.

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