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
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)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Alarm Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Selective Calling 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.
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)
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)
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 |
CA1170354A (en) * | 1981-02-18 | 1984-07-03 | Takao Mogi | Aft circuit |
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 |
-
1986
- 1986-01-31 US US06/824,602 patent/US4689685A/en not_active Expired - Lifetime
-
1987
- 1987-01-23 CA CA000528042A patent/CA1237519A/en not_active Expired
- 1987-01-23 FI FI870294A patent/FI83012C/fi not_active IP Right Cessation
- 1987-01-30 DE DE87300856T patent/DE3787481T2/de not_active Expired - Lifetime
- 1987-01-30 NZ NZ219126A patent/NZ219126A/xx unknown
- 1987-01-30 EP EP87300856A patent/EP0237167B1/en not_active Expired - Lifetime
- 1987-01-30 JP JP62021655A patent/JPH07110056B2/ja not_active Expired - Fee Related
- 1987-01-30 ES ES87300856T patent/ES2043650T3/es not_active Expired - Lifetime
- 1987-01-30 KR KR87000720A patent/KR960001545B1/ko not_active IP Right Cessation
- 1987-01-30 AT AT87300856T patent/ATE95021T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS62183684A (ja) | 1987-08-12 |
FI870294A0 (fi) | 1987-01-23 |
JPH07110056B2 (ja) | 1995-11-22 |
DE3787481T2 (de) | 1994-04-21 |
KR960001545B1 (en) | 1996-02-01 |
US4689685A (en) | 1987-08-25 |
EP0237167B1 (en) | 1993-09-22 |
NZ219126A (en) | 1990-03-27 |
EP0237167A2 (en) | 1987-09-16 |
EP0237167A3 (en) | 1989-10-25 |
ATE95021T1 (de) | 1993-10-15 |
CA1237519A (en) | 1988-05-31 |
FI83012B (fi) | 1991-01-31 |
DE3787481D1 (de) | 1993-10-28 |
FI83012C (fi) | 1991-05-10 |
FI870294A (fi) | 1987-08-01 |
KR870007631A (ko) | 1987-08-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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