ES2043650T3 - Sistema de sintonia para television con prevision de sintonia fina automatica (aft). - Google Patents

Sistema de sintonia para television con prevision de sintonia fina automatica (aft).

Info

Publication number
ES2043650T3
ES2043650T3 ES87300856T ES87300856T ES2043650T3 ES 2043650 T3 ES2043650 T3 ES 2043650T3 ES 87300856 T ES87300856 T ES 87300856T ES 87300856 T ES87300856 T ES 87300856T ES 2043650 T3 ES2043650 T3 ES 2043650T3
Authority
ES
Spain
Prior art keywords
aft
tuning
television
forecast
fine automatic
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES87300856T
Other languages
English (en)
Inventor
William John Testin
Juri Tults
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Licensing Corp
Original Assignee
RCA Licensing Corp
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 RCA Licensing Corp filed Critical RCA Licensing Corp
Application granted granted Critical
Publication of ES2043650T3 publication Critical patent/ES2043650T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Alarm Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Selective Calling Equipment (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Noise Elimination (AREA)

Abstract

EN UN SISTEMA DE CONTROL DE SINTONIZACION PARA UN RECEPTOR DE TELEVISION UNA SEÑAL AFT ANALOGA ES SIMPLIFICADA DURANTE LOS INTERVALOS EN BLANCO CUANDO LA AMPLITUD DEL PORTADOR DE VIDEO ES RELATIVAMENTE CONSTANTE Y NO PUEDE AFECTAR A LA AMPLITUD DE LA SEÑAL AFT SIGNIFICATIVAMENTE. ESTO REDUCE LA NECESIDAD DE FILTRADO AFT.
ES87300856T 1986-01-31 1987-01-30 Sistema de sintonia para television con prevision de sintonia fina automatica (aft). Expired - Lifetime ES2043650T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/824,602 US4689685A (en) 1986-01-31 1986-01-31 Television tuning system with AFT provisions

Publications (1)

Publication Number Publication Date
ES2043650T3 true ES2043650T3 (es) 1994-01-01

Family

ID=25241833

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87300856T Expired - Lifetime ES2043650T3 (es) 1986-01-31 1987-01-30 Sistema de sintonia para television con prevision de sintonia fina automatica (aft).

Country Status (10)

Country Link
US (1) US4689685A (es)
EP (1) EP0237167B1 (es)
JP (1) JPH07110056B2 (es)
KR (1) KR960001545B1 (es)
AT (1) ATE95021T1 (es)
CA (1) CA1237519A (es)
DE (1) DE3787481T2 (es)
ES (1) ES2043650T3 (es)
FI (1) FI83012C (es)
NZ (1) NZ219126A (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4868892A (en) * 1987-05-08 1989-09-19 Rca Licensing Corporation Tuning system with provisions for calculating the local oscillator frequency from an aft characteristic
US4955074A (en) * 1988-05-30 1990-09-04 Matsushita Electric Industrial Co., Ltd. AFC apparatus with selection between average value mode and keyed mode
NL8801874A (nl) * 1988-07-26 1990-02-16 Philips Nv Televisie-ontvanger met een afstemschakeling die een frequentiesyntheseschakeling bevat.
JP2768712B2 (ja) * 1989-01-10 1998-06-25 株式会社東芝 選局装置
JP2844690B2 (ja) * 1989-07-11 1999-01-06 ソニー株式会社 Ａｆｔ回路
US5212554A (en) * 1990-12-31 1993-05-18 Thomson Consumer Electronics, Inc. Digital method and apparatus for evaluating a frequency parameter of an if signal
US5204746A (en) * 1991-03-05 1993-04-20 Farrell Scott O Method and apparatus for frequency modulating a phase locked loop with video information
US5233425A (en) * 1991-10-24 1993-08-03 Zenith Electronics Corporation Adaptive AFT system with variable step resolution
KR100242415B1 (ko) * 1996-11-28 2000-02-01 윤종용 2차 국부발진회로
EP1926306A1 (en) * 2006-11-24 2008-05-28 Thomson Licensing Method and apparatus for automatic fine tuning based on sync detection
US9509353B2 (en) * 2014-08-20 2016-11-29 Nxp B.V. Data processing device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2162367C3 (de) * 1971-12-16 1983-01-05 Blaupunkt-Werke Gmbh, 3200 Hildesheim Schaltungsanordnung zur automatischen, elektronischen Scharfabstimmung in einem Fernsehempfänger
JPS55147884A (en) * 1979-05-07 1980-11-18 Sanyo Electric Co Ltd Aft circuit of television receiver
US4302778A (en) * 1980-06-30 1981-11-24 Zenith Radio Corporation AFT-wide automatic frequency control system and method
GB2094080B (en) * 1981-02-18 1984-11-07 Sony Corp Automatic fine tuning circuits for television receivers
US4405947A (en) * 1981-05-08 1983-09-20 Rca Corporation Dual search mode type tuning system
US4387400A (en) * 1981-05-11 1983-06-07 Zenith Radio Corporation Tuning system for a television receiver
US4429415A (en) * 1981-11-30 1984-01-31 Rca Corporation Signal-seeking tuning system with signal loss protection for a television receiver

Also Published As

Publication number Publication date
FI83012C (fi) 1991-05-10
DE3787481D1 (de) 1993-10-28
KR870007631A (ko) 1987-08-20
US4689685A (en) 1987-08-25
EP0237167B1 (en) 1993-09-22
CA1237519A (en) 1988-05-31
NZ219126A (en) 1990-03-27
EP0237167A2 (en) 1987-09-16
DE3787481T2 (de) 1994-04-21
EP0237167A3 (en) 1989-10-25
KR960001545B1 (en) 1996-02-01
FI83012B (fi) 1991-01-31
FI870294A (fi) 1987-08-01
FI870294A0 (fi) 1987-01-23
JPS62183684A (ja) 1987-08-12
JPH07110056B2 (ja) 1995-11-22
ATE95021T1 (de) 1993-10-15

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