KR910004033A - Aft 회로 - Google Patents

Aft 회로 Download PDF

Info

Publication number
KR910004033A
KR910004033A KR1019900008771A KR900008771A KR910004033A KR 910004033 A KR910004033 A KR 910004033A KR 1019900008771 A KR1019900008771 A KR 1019900008771A KR 900008771 A KR900008771 A KR 900008771A KR 910004033 A KR910004033 A KR 910004033A
Authority
KR
South Korea
Prior art keywords
aft
aft circuit
period
circuit
vertical
Prior art date
Application number
KR1019900008771A
Other languages
English (en)
Other versions
KR960014232B1 (ko
Inventor
사도시 이시구로
오사무 오다
Original Assignee
오가 노리오
소니 가부시기가이샤
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 오가 노리오, 소니 가부시기가이샤 filed Critical 오가 노리오
Publication of KR910004033A publication Critical patent/KR910004033A/ko
Application granted granted Critical
Publication of KR960014232B1 publication Critical patent/KR960014232B1/ko

Links

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • H03J7/065—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers the counter or frequency divider being used in a phase locked loop

Landscapes

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

Abstract

내용 없음.

Description

AFT 회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본원 발명의 일예의 구성도,
제2도는 동작의 플로챠트도.

Claims (1)

  1. 최호한 채널전환시는 AFT 검출기간을 1수직기간 이상으로 하고, AFT의 인입이 행해진 후에는 상기 AFT 검출기간을 수직귀선 기간만으로 되도록 한 AFT 회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900008771A 1989-07-11 1990-06-15 Aft회로 KR960014232B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP89-178588 1989-07-11
JP1178588A JP2844690B2 (ja) 1989-07-11 1989-07-11 Ａｆｔ回路

Publications (2)

Publication Number Publication Date
KR910004033A true KR910004033A (ko) 1991-02-28
KR960014232B1 KR960014232B1 (ko) 1996-10-14

Family

ID=16051096

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900008771A KR960014232B1 (ko) 1989-07-11 1990-06-15 Aft회로

Country Status (4)

Country Link
US (1) US5065244A (ko)
JP (1) JP2844690B2 (ko)
KR (1) KR960014232B1 (ko)
CA (1) CA2020839C (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303398A (en) * 1990-03-09 1994-04-12 Thomson Consumer Electronics, Inc. Stability detection method and apparatus for a tuning system
JP3920575B2 (ja) * 2001-01-22 2007-05-30 三洋電機株式会社 デジタル放送受信機におけるチャンネル情報登録処理方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422096A (en) * 1975-11-14 1983-12-20 Rca Corporation Television frequency synthesizer for nonstandard frequency carriers
US4031549A (en) * 1976-05-21 1977-06-21 Rca Corporation Television tuning system with provisions for receiving RF carrier at nonstandard frequency
US4236182A (en) * 1977-04-30 1980-11-25 Sharp Kabushiki Kaisha Automatic pre-programming system for TV receivers
JPS55147884A (en) * 1979-05-07 1980-11-18 Sanyo Electric Co Ltd Aft circuit of television receiver
US4241450A (en) * 1979-08-27 1980-12-23 Rca Corporation Automatic turn-off apparatus for a radio or television receiver
US4405947A (en) * 1981-05-08 1983-09-20 Rca Corporation Dual search mode type tuning system
US4484221A (en) * 1982-09-01 1984-11-20 Rca Corporation Shared counter arrangement for a digital frequency locked loop tuning system for selectively measuring the frequencies of the LO and IF signals
JPS59152717A (ja) * 1983-02-18 1984-08-31 Sony Corp テレビジョン信号の選局回路
JPS59178013A (ja) * 1983-03-29 1984-10-09 Pioneer Electronic Corp 受信機の選局方法
US4575761A (en) * 1983-04-28 1986-03-11 Rca Corporation AFT arrangement for a double conversion tuner
JPS60194679A (ja) * 1984-03-15 1985-10-03 Sony Corp テレビジヨン受像機
US4689685A (en) * 1986-01-31 1987-08-25 Rca Corporation Television tuning system with AFT provisions
JPS635669A (ja) * 1986-06-25 1988-01-11 Mitsubishi Electric Corp 選局装置
JP2685744B2 (ja) * 1986-08-20 1997-12-03 三菱電機株式会社 テレビジヨン信号選局装置
US4763195A (en) * 1987-05-08 1988-08-09 Rca Licensing Corporation Television tuning system with provisions for quickly locating active cable channels

Also Published As

Publication number Publication date
US5065244A (en) 1991-11-12
JP2844690B2 (ja) 1999-01-06
CA2020839A1 (en) 1991-01-12
KR960014232B1 (ko) 1996-10-14
CA2020839C (en) 2000-02-22
JPH0344106A (ja) 1991-02-26

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Payment date: 20101005

Year of fee payment: 15

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