KR930015412A - Broadcast channel auto search method - Google Patents

Broadcast channel auto search method Download PDF

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Publication number
KR930015412A
KR930015412A KR1019910024893A KR910024893A KR930015412A KR 930015412 A KR930015412 A KR 930015412A KR 1019910024893 A KR1019910024893 A KR 1019910024893A KR 910024893 A KR910024893 A KR 910024893A KR 930015412 A KR930015412 A KR 930015412A
Authority
KR
South Korea
Prior art keywords
search
channel
aft
signal
checking
Prior art date
Application number
KR1019910024893A
Other languages
Korean (ko)
Other versions
KR940010234B1 (en
Inventor
이상용
Original Assignee
이헌조
주식회사 금성사
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.)
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Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019910024893A priority Critical patent/KR940010234B1/en
Publication of KR930015412A publication Critical patent/KR930015412A/en
Application granted granted Critical
Publication of KR940010234B1 publication Critical patent/KR940010234B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Television Receiver Circuits (AREA)

Abstract

내용 없음No content

Description

방송채널 자동 탐색방법Broadcast channel auto search method

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

제 1 도는 종래 방송채널 자동 탐색 신호흐름도.1 is a conventional broadcast channel automatic search signal flow diagram.

제 2 도는 제 1 도의 동작 타이밍도.2 is an operation timing diagram of FIG.

제 3 도는 본 발명 방송채널 자동 탐색 시스템 구성도.3 is a schematic diagram of a broadcast channel automatic search system according to the present invention;

제 4 도는 제 1 도의 각부 동작 타이밍도.4 is an operation timing diagram of each part of FIG.

제 5 도는 제 1 도의 동작설명에 대한 신호흐름도.5 is a signal flow diagram illustrating the operation of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 마이콤 2 : 튜닝전압제어부1: Micom 2: Tuning voltage control unit

3 : 튜너 4 : 중간주파증폭 및 검파부3: tuner 4: intermediate frequency amplifier and detector

5 : 자동선국신호발생부 6 : 동기검출부5: Automatic tuning signal generator 6: Synchronization detector

Claims (1)

채널탐색신호에 따라 튜너를 제어하여 방송채널을 탐색하는 제 1단계와, 상기 채널탐색중에 자동선국신호발생부로부터 정,부선국신호(AFT+)(AFT-)중에 한신호를 우선으로 체크하여 제 2단계와, 상기 자동선국신호가 체크되면 저속으로 채널을 탐색하는 제 3단계와, 상기 저속 채널탐색중에 제 2단계의 나머지 자동선국신호를 체크하는 제 4단계와, 상기 제 2단계 및 제 4단계에서 검출된 정, 부선국신호(AFT+)(AFT-)의 사이에 동기신호의 유, 무를 체크하는 제 5단계와 상기 동기신호가 없을때 계속 채널탐색을 하고, 유신호일때 탐색을 정지하는 제 6단계로 이루어짐을 특징으로 한 방송채널 자동 탐색방법.By controlling the tuner and a first step of search for broadcast channels, from the automatic channel selection signal generating unit in the channel scan information, barges guksinho (AFT +) according to the channel search signal (AFT -) by checking the hansinho during the first 2 A third step of searching for a channel at a low speed when the automatic tuning signal is checked; a fourth step of checking the remaining automatic tuning signal of a second step during the low speed channel search; and the second and fourth steps the tablets, barges guksinho (AFT +) (AFT -) detected in the continuing channel search in the absence of the fifth step and the sync signal for checking existence, absence of the synchronizing signal between the, and the stopping the search when Restoration foil Automatic search for broadcast channels, characterized in that consisting of six steps. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910024893A 1991-12-28 1991-12-28 Automatic searching method for tv receiver KR940010234B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910024893A KR940010234B1 (en) 1991-12-28 1991-12-28 Automatic searching method for tv receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910024893A KR940010234B1 (en) 1991-12-28 1991-12-28 Automatic searching method for tv receiver

Publications (2)

Publication Number Publication Date
KR930015412A true KR930015412A (en) 1993-07-24
KR940010234B1 KR940010234B1 (en) 1994-10-22

Family

ID=19326446

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910024893A KR940010234B1 (en) 1991-12-28 1991-12-28 Automatic searching method for tv receiver

Country Status (1)

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KR (1) KR940010234B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020078184A (en) * 2001-04-06 2002-10-18 엘지이노텍 주식회사 A Cable Modem Channel Searching Algorithm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020078184A (en) * 2001-04-06 2002-10-18 엘지이노텍 주식회사 A Cable Modem Channel Searching Algorithm

Also Published As

Publication number Publication date
KR940010234B1 (en) 1994-10-22

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