KR960019974A - Automatic tuning method of broadcasting receiver and its device - Google Patents

Automatic tuning method of broadcasting receiver and its device Download PDF

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Publication number
KR960019974A
KR960019974A KR1019940030215A KR19940030215A KR960019974A KR 960019974 A KR960019974 A KR 960019974A KR 1019940030215 A KR1019940030215 A KR 1019940030215A KR 19940030215 A KR19940030215 A KR 19940030215A KR 960019974 A KR960019974 A KR 960019974A
Authority
KR
South Korea
Prior art keywords
frequency
receiver
signal
broadcasting station
automatic tuning
Prior art date
Application number
KR1019940030215A
Other languages
Korean (ko)
Other versions
KR0129600B1 (en
Inventor
조상원
정규현
Original Assignee
이헌조
엘지전자 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 이헌조, 엘지전자 주식회사 filed Critical 이헌조
Priority to KR1019940030215A priority Critical patent/KR0129600B1/en
Publication of KR960019974A publication Critical patent/KR960019974A/en
Application granted granted Critical
Publication of KR0129600B1 publication Critical patent/KR0129600B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0058—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means
    • H03J1/0066—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means with means for analysing the received signal strength
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0091—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with means for scanning over a band of frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

본 발명은 방송수신기의 자동 동조방법 및 그 장치에 관한 것으로 특히, PLL수신기내의 메모리에 전 AF리스트를 저장해 농고 현재 청취중인 방송국의 전계강도를 저하되어 수신상태가 불량하면 최고로 수신상태가 양호한 동일 방송국이 자동으로 동조되도록 하므로써, 자동차를 이용하여 장거리 주행시 소비자가 그 지역마다 변화되는 같은 방송국을 일일히 찾지 않아도 되어 제품의 신뢰도를 대폭 향상시킬 수 있는 것이다.The present invention relates to an automatic tuning method of a broadcast receiver, and a device thereof. In particular, the entire broadcasting station is stored in a memory of a PLL receiver to reduce the electric field strength of a broadcasting station currently listening to the farm. This automatic tuning can greatly improve the reliability of the product by eliminating the need for consumers to find the same broadcasting stations that vary from region to region when driving long distances using a car.

Description

방송수신기의 자동 동조방법 및 그 장치Automatic tuning method of broadcasting receiver and its device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명 자동 동조장치의 블럭 구성도,1 is a block diagram of the automatic tuning device of the present invention;

제2도는 본 발명 방법을 설명하기 위한 플로우차트.2 is a flowchart for explaining the method of the present invention.

Claims (2)

IF증폭부로 부터 출력되는 현재 방송국의 수신신호 크기를 검출하는 과정과; 메모리 수단에 저장된 각 방송국의 송신주파수 중 현재 선국된 방송국의 주파수 데이타를 주파수 크기별로 정렬하는 과정과; 상기 메모리수단에 정렬된 주파수 데이타 중 주파수 신호의 크기가 가장 큰 주파수와 현재 동조된 주파수의 크기를 상호 비교하여 상기 RAM에 저장된 주파수가 크면 그 주파수를 가장 큰 주파수로 동조시켜 주는 과정으로 이루어진 것을 특징으로 하는 방송수신기의 자동 동조방법.Detecting a magnitude of a received signal of a current broadcasting station output from the IF amplifier; Aligning frequency data of the currently tuned broadcasting station by frequency magnitude among transmission frequencies of each broadcasting station stored in the memory means; Comparing the frequency of the largest frequency signal among the frequency data arranged in the memory means with the size of the currently tuned frequency, and if the frequency stored in the RAM is large, tuning the frequency to the largest frequency. Automatic tuning of a broadcast receiver. 안테나(ANT)를 통해 수신되는 고주파의 라디오 주파수를 수신하여 소정 방송국을 선국하는 RF수신부와; 상기 RF수신부로 부터 출력되는 신호중 음성중간 주파신호를 증폭시켜 음성신호로 출력해 주는 IF증폭부와; 상기 RF수신부로 부터 소정의 발진주파수를 입력받아 기준발진 주파수와의 위상차(Eo)를 구하는 페이즈록 루프(PLL)부와; 상기 PLL부로 부터 출력되는 위상차신호를 저역부분만 통과시켜 소정의 직류전압(Vt)을 RF수신부로 궤환시켜 주는 저역통과필터와; 상기 IF증폭부에서 아날로그로 출력되는 신호크기 레벨신호를 디지탈신호로 입력받아 수신기의 전반적인 제어기능을 수행하는 마이컴과; 각 방송국의 송신주파수가 기억되어지는 메모리수단으로 구성된 것을 특징으로 하는 방송수신기의 자동 동조장치.An RF receiver for receiving a radio frequency of a high frequency received through an antenna ANT and tuning a predetermined broadcast station; An IF amplifying unit for amplifying a voice intermediate frequency signal among the signals output from the RF receiver and outputting the voice signal; A phase lock loop (PLL) unit which receives a predetermined oscillation frequency from the RF receiver and obtains a phase difference Eo from a reference oscillation frequency; A low pass filter for passing a phase difference signal outputted from the PLL section only through a low pass portion to return a predetermined DC voltage Vt to the RF receiver; A microcomputer that receives the signal level signal output from the IF amplifier as an analog signal as a digital signal and performs overall control of the receiver; An automatic tuning device for a broadcast receiver, comprising memory means for storing the transmission frequency of each broadcasting station. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940030215A 1994-11-17 1994-11-17 An automatic tunning method of broadcasting receiver KR0129600B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940030215A KR0129600B1 (en) 1994-11-17 1994-11-17 An automatic tunning method of broadcasting receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940030215A KR0129600B1 (en) 1994-11-17 1994-11-17 An automatic tunning method of broadcasting receiver

Publications (2)

Publication Number Publication Date
KR960019974A true KR960019974A (en) 1996-06-17
KR0129600B1 KR0129600B1 (en) 1998-10-01

Family

ID=19398200

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940030215A KR0129600B1 (en) 1994-11-17 1994-11-17 An automatic tunning method of broadcasting receiver

Country Status (1)

Country Link
KR (1) KR0129600B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100435402B1 (en) * 1996-12-27 2004-08-04 현대자동차주식회사 Auto dial-selector for radio system using comparison identical radio

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100435402B1 (en) * 1996-12-27 2004-08-04 현대자동차주식회사 Auto dial-selector for radio system using comparison identical radio

Also Published As

Publication number Publication date
KR0129600B1 (en) 1998-10-01

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