KR970055355A - Car Audio's Multi-Level Scanning System - Google Patents

Car Audio's Multi-Level Scanning System Download PDF

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Publication number
KR970055355A
KR970055355A KR1019950060840A KR19950060840A KR970055355A KR 970055355 A KR970055355 A KR 970055355A KR 1019950060840 A KR1019950060840 A KR 1019950060840A KR 19950060840 A KR19950060840 A KR 19950060840A KR 970055355 A KR970055355 A KR 970055355A
Authority
KR
South Korea
Prior art keywords
frequency
frequency amplifier
intermediate frequency
broadcasting
voice
Prior art date
Application number
KR1019950060840A
Other languages
Korean (ko)
Inventor
양명우
Original Assignee
배순훈
대우전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950060840A priority Critical patent/KR970055355A/en
Publication of KR970055355A publication Critical patent/KR970055355A/en

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  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

본 발명은 카오디오를 구성하고 있는 AM/FM튜너를 이용하여 방송주파수를 스캐닝하여 메모리부에 일정 방송주파수를 메모리시킬때 전계강도의 기준레벨을 다단계로 구성시켜 스캐닝에 의해 선택되는 전계강도의 폭을 확장함으로써 낮은 전계강동의 방송주파수로부터 높은 전계강도의 방송주파수를 폭 넓게 메모리 시킬 수 있는 카오디오의 다단계 스캐닝시스템에 관한 것으로, 안테나를 통해 인가된 방송주파수의 전계강도가 마이컴에 접속된 모드입력버튼에 의해 설정된 저단계모드, 중단계모드 및 고단계모드중의 선택된 모드에 해당되는가를 판단하여 수신된 방송주파수의 전계강도가 선택된 모드에 해당되면 스캐닝동작부를 통해 스캐닝하여 해당되는 대체주파수를 체크하므로써 넓은 범위의 방송주파수를 스캐닝하여 대체주파수를 신속하게 체크하여 항상 원활한 방송을 수신할 수 있게 된다.The present invention uses the AM / FM tuner constituting the car audio to scan a broadcasting frequency to store a predetermined broadcasting frequency in a memory unit. It is a multi-stage scanning system of car audio that can store a wide range of high frequency strength broadcasting frequencies from low field strength broadcasting frequencies by extending the signal transmission mode.The field input of the broadcasting frequency applied through an antenna is connected to the microcomputer. If the electric field strength of the received broadcasting frequency corresponds to the selected mode, it checks the corresponding alternative frequency by scanning through the scanning operation unit. This allows you to scan a wide range of broadcast frequencies and quickly The size is always able to receive seamless broadcast.

Description

카오디오의 다단계 스캐닝시스템Car Audio's Multi-Level Scanning System

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

제1도는 본 발명에 따른 개략적인 블럭회로도이다.1 is a schematic block circuit diagram according to the present invention.

Claims (1)

방송국으로부터 송신되며 방송주파수가 실린 무선주파수가 안테나(10)를 통해 인가되는 무선주파수증폭부(20)와, 상기 무선주파수증폭부(20)로부터 인가되는 무선주파수를 중간주파수와 음성주파수로 분리하여 증폭시키는 중간주파수증폭부 (30)와, 상기 중간주파수증폭부(30)에 접속되며 중간주파수증폭부(30)로부터 인가되는 음성신호를 스테레오신호로 분리하는 멀티플렉서(40)와, 상기 멀티플렉서(40)에 접속되며 인가된 음성신호를 제어하여 음성증폭부(60) 및 스피커(70)를 통해 출력시키는 음성제어부(50)와, 상기 중간주파수증폭부(30)에 접속되며 아날로그/디지탈 컨버터(82) 및 단계판단부(84) 그리고 스캐닝동작부(86)로 구성되어 중간주파수증폭부(30)로부터 인가되는 방송주파수의 세기에 해당하는 전압을 시그널미터(35)를 통해 인가받아 비교 판단한뒤 설정된 단계의 전압에 해당되면 스캐닝 기능에 의해 대체 방송주파수를 체크하는 마이컴(80)과, 상기 마이컴(80)의 단계판단부(84)에 설정된 모드를 변환시키며 선택된 모드에서의 스캐닝동작을 실행시키는 모드 입력버튼(90)으로 이루어지는 것을 특징으로 하는 카오디오의 다단계 스캐닝시스템.A radio frequency amplifier 20 transmitted from a broadcasting station and loaded with a broadcast frequency is applied through an antenna 10, and a radio frequency applied from the radio frequency amplifier 20 is separated into an intermediate frequency and a voice frequency. An intermediate frequency amplifier 30 for amplifying, a multiplexer 40 connected to the intermediate frequency amplifier 30 and separating the audio signal applied from the intermediate frequency amplifier 30 into a stereo signal, and the multiplexer 40 ) Is connected to the voice control unit 50 for controlling the applied voice signal and outputting the voice signal through the voice amplifier 60 and the speaker 70, and the intermediate frequency amplifier 30 and an analog / digital converter 82. ) And a step determination unit 84 and a scanning operation unit 86 are compared to determine the voltage corresponding to the strength of the broadcast frequency applied from the intermediate frequency amplifier 30 through the signal meter 35 If it corresponds to the voltage of the later set step, the microcomputer 80 for checking the alternative broadcast frequency by the scanning function and the mode set in the step determination unit 84 of the microcomputer 80 is switched and the scanning operation is executed in the selected mode. Car audio multi-stage scanning system, characterized in that consisting of a mode input button (90). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950060840A 1995-12-28 1995-12-28 Car Audio's Multi-Level Scanning System KR970055355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950060840A KR970055355A (en) 1995-12-28 1995-12-28 Car Audio's Multi-Level Scanning System

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950060840A KR970055355A (en) 1995-12-28 1995-12-28 Car Audio's Multi-Level Scanning System

Publications (1)

Publication Number Publication Date
KR970055355A true KR970055355A (en) 1997-07-31

Family

ID=66621342

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950060840A KR970055355A (en) 1995-12-28 1995-12-28 Car Audio's Multi-Level Scanning System

Country Status (1)

Country Link
KR (1) KR970055355A (en)

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