KR970013662A

KR970013662A - Car audio volume control device and control method

Info

Publication number: KR970013662A
Application number: KR1019950025555A
Authority: KR
Inventors: 이택근
Original assignee: 한승준; 기아자동차 주식회사
Priority date: 1995-08-19
Filing date: 1995-08-19
Publication date: 1997-03-29

Abstract

본 발명은 자동차의 오디오(AUDIO) 음량조절장치에 관한 것으로, 특히 마이트(MICROPHON)(미도시)DHK 증폭회로(미도시)FH 구성되어 차내의 소음을 감지하는 소음감지부(10)와; 오디오의 음향출력단(미도시)에 접속되어 오디오의 음량을 검출하는 오디오음량검출부(40)와; 상기 소음감지부(10)와 오디오음량검출부(40)의 출력단에 접속되어, 상기 소음감지부(10)를 통해 인가되는 신호와 오디오검출부(40)를 통해 인가되는 오디오출력신호를 비교하여 차내 소음신호성분을 검출하고, 차내의 소음정도에 알맞은 최적의 음량상태를 판단하여, 상기 최적의 음량 상태에 해당하는 소정의 제어신호를 출력하는 마이컴(20)과; 상기 마이컴(20)의 출력단(OUT)에 접속되어, 상기마이컴(20)에서 출력되는 소정의 제어신호를 인가받아 오디오의 음량을 제어하는 음량제어부(30)를 포함하여 구성됨을 특징으로 하는 자동차 오디오, 음량 조절장치와; 오디오가 온(ON)되었을 시, 마이크와 증폭회로를 통해 출력되는 차내의 음을 검출하는 실내음검출단계(100)와; 상기 실내음검출단계(100)에서 검출한 차내의 음과 오디오 출력단자에서 검출한 오디오의 음량을 비교하여 차내의 소음신호성분을 검출하고, 상기에서 검출한 소음신호성분과 오디오에서 출력되는 음의 음량을 검출하여, 차내의 소음과 오디오 출력 음량의 대소관계를 판단하는 음량비교 판단단계(200)와; 상기 음량비교판단단계(200)를 수행한 결과, 차내의 소음이 오디오의 음량보다 높은 것으로 판단됨에 따라, 운전자의 취향에 적합한 음량이 될 때까지 오디오의 음량을 1단계씩 높이는(UP) 음량업단계(310)와; 상기 음량비교판단단계(200)를 수행한 결과, 차내의 오디오의 음량이 소음보다 높은 것으로 판단됨에 따라, 운전자의 취향에 적합한 음량인가를 판단하여, 운전자의 취향에 적합한 음량이 될 때까지 오디오의 음량을 1단계Tlr 내리는(DOWN) 음량다운단계(320)를 포함하여 구성됨을 특징으로 하는 자동차 오디오 음량조절장치의 제어방법이다.The present invention relates to an audio volume control apparatus for an automobile, and in particular, a noise detection unit 10 configured to detect a noise in a vehicle, which is composed of MICROPHON (not shown) DHK amplification circuit (not shown) FH; An audio volume detector 40 connected to an audio output terminal (not shown) of the audio to detect a volume of the audio; Is connected to the output of the noise detection unit 10 and the audio volume detection unit 40, the noise in the car by comparing the signal output through the noise detection unit 10 and the audio output signal applied through the audio detection unit 40 A microcomputer 20 which detects a signal component, determines an optimum volume state suitable for the noise level in the vehicle, and outputs a predetermined control signal corresponding to the optimum volume state; It is connected to the output terminal (OUT) of the microcomputer 20, the car audio, characterized in that it comprises a volume control unit 30 for controlling the volume of the audio by receiving a predetermined control signal output from the microcomputer (20) With volume control; An indoor sound detection step (100) for detecting sound in the vehicle output through the microphone and the amplification circuit when the audio is turned on; The noise signal component of the vehicle is detected by comparing the sound volume of the vehicle detected in the indoor sound detection step 100 with the volume of audio detected by the audio output terminal, and the noise signal component and the sound output from the audio are detected. A volume comparison determining step (200) of detecting a volume and determining a magnitude relationship between the noise in the vehicle and the audio output volume; As a result of performing the volume comparison determination step 200, as the noise in the vehicle is determined to be higher than the volume of the audio, the volume of the audio is increased by one step until the volume suitable for the driver's taste is increased. Step 310; As a result of performing the volume comparison determination step 200, it is determined that the volume of the audio in the vehicle is higher than the noise, so as to determine whether the volume is suitable for the driver's taste, and until the volume is suitable for the driver's taste. The control method of the car audio volume control device, characterized in that it comprises a volume down step 320, the volume down step (1) Tlr down.

Description

Car audio volume control device and control method

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

제1도는 본 발명 ″자동차 오디오 음량조절장치″의 제1실시예의 구성을 나타낸 블록도,1 is a block diagram showing the configuration of the first embodiment of the present invention " car audio volume control device "

제2도는 본 발명 ″자동차 오디오 음량조절장치″의 제2실시예의 구성을 나타낸 블록도,2 is a block diagram showing the construction of a second embodiment of the present invention " car audio volume control device "

제3도는 본 발명 ″자동차 오디오 음량조절장치″의 제3실시예의 구성을 나타낸 블록도,3 is a block diagram showing the configuration of the third embodiment of the present invention " car audio volume control device "

제4도는 본 발명 ″자동차 오디오 음량조절장치의 제어방법″을 나타낸 신호흐름도.4 is a signal flow diagram showing the present invention " control method of car audio volume control device "

Claims

A noise detector configured to include a microphone and an amplification circuit to detect noise in the vehicle; An audio volume detection unit connected to a volume output end of the audio for detecting a volume of the audio; It is connected to the output terminal of the noise detector and the audio volume detector, and compares the signal applied through the noise detector and the audio output signal applied through the audio detector to detect the noise signal component in the vehicle, and is optimized for the noise level in the vehicle. A microcomputer for determining a volume state of the signal and outputting a predetermined control signal corresponding to the optimum volume state; And a volume control unit connected to an output terminal of the microcomputer to control a volume of audio by receiving a predetermined control signal output from the microcomputer.

The apparatus of claim 1, wherein the microcomputer has a comparator for detecting a noise signal component in a vehicle by comparing the signals applied from the noise detector and the audio volume detector.

The vehicle audio volume according to claim 1, wherein the microcomputer includes a digital signal processing (DSP) function for detecting noise signal components in the vehicle by comparing signals applied from the noise detector and the audio volume detector. Regulator.

The apparatus of claim 1, wherein the noise detector comprises a plurality of noise detectors to detect noise in several places in the vehicle.

The apparatus of claim 1, wherein the audio volume detector comprises an amplifying circuit configured to adjust a magnitude of a signal level output from audio to an input allowable level of the microcomputer.

A noise detector configured to include a microphone and an amplification circuit to detect noise in the vehicle; An audio volume detector connected to a volume output terminal of the audio to detect a volume of the audio; A comparison unit connected to the noise detection unit, the audio volume detection unit, and the output terminal, and comparing a signal applied through the noise detection unit with an audio output signal applied through the audio detection unit to detect an interior noise signal component; A microcomputer connected to the comparing unit to determine an optimum volume state suitable for the noise level in the vehicle from the signal applied from the comparing unit, and output a predetermined control signal corresponding to the optimum volume state; And a volume control unit connected to an output terminal of the microcomputer to control a volume of audio by receiving a predetermined control signal output from the microcomputer.

The apparatus of claim 6, wherein the noise detector comprises a plurality of noise detectors to detect noise in several places in the vehicle.

The apparatus of claim 6, wherein the audio volume detection unit comprises an amplifying circuit for adjusting the level of a signal level output from audio to an input allowable level of the microcomputer.

A noise detector configured to include a microphone and an amplification circuit to detect noise in the vehicle; An audio volume detector connected to a volume output terminal of the audio to detect a volume of the audio; A DSP unit connected to an output terminal of the noise detector and an audio volume detector, for detecting a noise signal component in a vehicle by comparing a signal applied through the noise detector and an audio output signal applied through the audio detector; A microcomputer connected to the DSP unit for determining an optimum volume state suitable for the noise level in the vehicle from the signal applied from the DSP unit, and outputting a predetermined control signal corresponding to the optimum volume state; And a volume control unit connected to an output terminal of the microcomputer to control a volume of audio by receiving a predetermined control signal output from the microcomputer.

10. The apparatus of claim 9, wherein the noise detection unit is configured in plural so as to detect noise of several places in the vehicle.

10. The apparatus of claim 9, wherein the audio volume detection unit comprises an amplifying circuit for adjusting the magnitude of the signal level output from the audio to an input allowable level of the microcomputer.

An indoor sound detection step of detecting sound in the vehicle output through the microphone and the amplifying circuit when the audio is turned on; The noise signal component in the vehicle is detected by comparing the sound volume in the vehicle detected in the indoor sound detection step with the audio volume detected in the audio output terminal, and the volume of the noise signal component detected in the vehicle and the sound output from the audio is detected. A volume comparison judging step of determining the magnitude relation between the noise in the vehicle and the audio output volume; A volume up step of increasing the volume of the audio by one step until it is determined that the noise in the vehicle is higher than the volume of the audio as a result of performing the volume comparison determination step; As a result of performing the volume comparison determination step, it is determined that the volume of the audio in the vehicle is higher than the noise, and it is determined whether the volume is suitable for the driver's taste. Control method of a car audio volume control device, characterized in that comprises a step down volume down.

The method of claim 12, wherein the volume up step comprises: an eleventh step of increasing the volume of the audio by one step until the volume of the audio is greater than the noise; A twelfth step of increasing the volume of the audio by one step until the difference between the volume of the audio and the noise becomes an optimal state value for listening to the sound of the audio after performing the eleventh step; And a thirteenth step of repeating the predetermined process for automatically adjusting the volume of the audio according to the degree of noise until the audio is turned off after performing the twelfth step. Control method.

The method of claim 12, wherein the volume down step determines whether the difference between the volume of the audio and the noise is an optimal state value for listening to the audio, and thus the difference between the volume of the audio and the noise is optimal for listening to the audio. In the case of the state shade, the twenty-first step of repeating the predetermined process for automatically adjusting the volume of the audio according to the degree of noise; As a result of performing step 21, when it is determined that the difference between the volume of the audio and the noise is not an optimal state value for listening to the sound of the audio, the difference between the volume of the audio and the noise is optimal for the sound of the audio. A twenty-second step of decreasing the volume of the audio by one step until a state value is reached; And after performing the twenty-second step, the twenty-third step of repeating the predetermined process for automatically adjusting the volume of the audio according to the degree of noise until the audio is turned off. Control method of the device.

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