KR920015706A - Broadcast frequency search method and device - Google Patents

Broadcast frequency search method and device Download PDF

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Publication number
KR920015706A
KR920015706A KR1019910000476A KR910000476A KR920015706A KR 920015706 A KR920015706 A KR 920015706A KR 1019910000476 A KR1019910000476 A KR 1019910000476A KR 910000476 A KR910000476 A KR 910000476A KR 920015706 A KR920015706 A KR 920015706A
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KR
South Korea
Prior art keywords
pll
found
signal
channel
broadcast
Prior art date
Application number
KR1019910000476A
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Korean (ko)
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KR100202632B1 (en
Inventor
김동기
Original Assignee
문정환
금성일렉트론 주식회사
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Priority to KR1019910000476A priority Critical patent/KR100202632B1/en
Publication of KR920015706A publication Critical patent/KR920015706A/en
Application granted granted Critical
Publication of KR100202632B1 publication Critical patent/KR100202632B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Television Receiver Circuits (AREA)

Abstract

내용 없음No content

Description

방송주파수 써어치 방법 및 장치Broadcast frequency search method and device

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

제4도는 본 발명의 방송주파수 써어치에 대한 튜닝시스템 구성도, 제5도는 제4도에 있어서 중심주파수를 중심으로 신호검출한 플로우챠트.4 is a configuration diagram of a tuning system for the broadcast frequency search of the present invention, and FIG. 5 is a flowchart of signal detection around a center frequency in FIG.

Claims (2)

채널에 방송이 있을 경우 원하는 채널 키를 누르면 중심주파수를 기억하고 있어 안테나 신호를 해석하는 마이컴과, 키를 통하여 채널에 해당하는 PLL데이타를 보내어 PLL에 의해 PLL를 작동시켜 안테나 신호를 받아들여 SYNC재생회로를 통해서 마이컴으로 보내는 튜너부를 포함하여 구성된 것을 특징으로하는 방송주파수 써어치 장치.If there is a broadcast on the channel, pressing the desired channel key memorizes the center frequency and sends the PLL data corresponding to the channel through the microcomputer to interpret the antenna signal, and operates the PLL by the PLL to receive the antenna signal and play the SYNC. Broadcast frequency search device comprising a tuner unit for sending to the microcomputer through a circuit. 채널의 중심주파수를 발사하여 SYNC신호가 발견되면 일정한 중심주파수 PLL을 발사하여 SYMC신호가 발견됨에따라 정튜닝포인트로 확정하는 단계와, SYNC신호가 발견되지 않으면 중심주파수에서 일정한 주파수 PLL을 발사하여 SYNC신호가 발견됨에 따라 중심주파수 PLL을 발사하여 정튜닝 포인트로 확정하는 단계와, SYNC신호가 발견되지 않아서 일정한 주파수의 모든 PLL이 발사되면 이채널은 방송이 없음을 나타내는 단계를 포함하여 구성된것을 특징으로 하는 방송주파수 써어치 방법.When the SYNC signal is found by firing the center frequency of the channel, the center frequency PLL is fired to determine the correct tuning point as the SYMC signal is found.If the SYNC signal is not found, the SYNC is fired by the constant frequency PLL at the center frequency. When the signal is found, the center frequency PLL is fired to determine the correct tuning point, and when all PLLs of a constant frequency are fired because no SYNC signal is found, this channel indicates that there is no broadcast. Broadcast frequency search method. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910000476A 1991-01-15 1991-01-15 Broadcast frequency search method and device KR100202632B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910000476A KR100202632B1 (en) 1991-01-15 1991-01-15 Broadcast frequency search method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910000476A KR100202632B1 (en) 1991-01-15 1991-01-15 Broadcast frequency search method and device

Publications (2)

Publication Number Publication Date
KR920015706A true KR920015706A (en) 1992-08-27
KR100202632B1 KR100202632B1 (en) 1999-06-15

Family

ID=19309761

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910000476A KR100202632B1 (en) 1991-01-15 1991-01-15 Broadcast frequency search method and device

Country Status (1)

Country Link
KR (1) KR100202632B1 (en)

Also Published As

Publication number Publication date
KR100202632B1 (en) 1999-06-15

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