ATE405987T1 - Fernsehsystem mit gesteuerter abstimmung - Google Patents

Fernsehsystem mit gesteuerter abstimmung

Info

Publication number
ATE405987T1
ATE405987T1 AT03799013T AT03799013T ATE405987T1 AT E405987 T1 ATE405987 T1 AT E405987T1 AT 03799013 T AT03799013 T AT 03799013T AT 03799013 T AT03799013 T AT 03799013T AT E405987 T1 ATE405987 T1 AT E405987T1
Authority
AT
Austria
Prior art keywords
signals
stages
tuners
channel
synchronization
Prior art date
Application number
AT03799013T
Other languages
German (de)
English (en)
Inventor
Janardhana Bhat
Akbar Syed
Teck Leong
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE405987T1 publication Critical patent/ATE405987T1/de

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
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • 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
    • 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
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/22—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element in which an automatic frequency control circuit is brought into action after the scanning action has been stopped
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/4263—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Television Receiver Circuits (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Selective Calling Equipment (AREA)
  • Details Of Television Systems (AREA)
AT03799013T 2002-10-07 2003-09-18 Fernsehsystem mit gesteuerter abstimmung ATE405987T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SG0200241 2002-10-07

Publications (1)

Publication Number Publication Date
ATE405987T1 true ATE405987T1 (de) 2008-09-15

Family

ID=32067557

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03799013T ATE405987T1 (de) 2002-10-07 2003-09-18 Fernsehsystem mit gesteuerter abstimmung

Country Status (8)

Country Link
US (1) US7643099B2 (enExample)
EP (1) EP1556950B1 (enExample)
JP (1) JP4372009B2 (enExample)
CN (1) CN100544202C (enExample)
AT (1) ATE405987T1 (enExample)
AU (1) AU2003263477A1 (enExample)
DE (1) DE60323119D1 (enExample)
WO (1) WO2004032322A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1926306A1 (en) * 2006-11-24 2008-05-28 Thomson Licensing Method and apparatus for automatic fine tuning based on sync detection
CN111163243B (zh) * 2020-01-21 2025-07-15 苏州易泰勒电子科技有限公司 一种用于子弹时间拍摄的快门控制电路

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5357954A (en) * 1976-11-05 1978-05-25 Matsushita Electric Ind Co Ltd Phase synchronism unit
US4280140A (en) * 1980-02-19 1981-07-21 Zenith Radio Corporation Microcomputer-controlled one-step-back automatic frequency control tuning system
US4302778A (en) * 1980-06-30 1981-11-24 Zenith Radio Corporation AFT-wide automatic frequency control system and method
US4367558A (en) * 1980-12-22 1983-01-04 Motorola, Inc. Method for automatically searching for an RF station
US4385315A (en) * 1981-05-08 1983-05-24 Rca Corporation Phase locked loop tuning control system including a timed sync activated AFT signal seeking arrangement
US4405947A (en) * 1981-05-08 1983-09-20 Rca Corporation Dual search mode type tuning system
US4498191A (en) * 1983-06-06 1985-02-05 General Electric Company Digital automatic frequency control with tracking
US4763195A (en) * 1987-05-08 1988-08-09 Rca Licensing Corporation Television tuning system with provisions for quickly locating active cable channels
JP2795906B2 (ja) * 1989-06-20 1998-09-10 株式会社東芝 選局装置
US5157492A (en) * 1990-04-30 1992-10-20 Thomson Consumer Electronics, Inc. Sync validity detecting utilizing a microcomputer
MY105316A (en) 1990-04-30 1994-09-30 Thomson Comsumer Electronics Inc Sync validity detection utilizing a microcomputer.
JPH05336458A (ja) 1991-03-15 1993-12-17 Hitachi Ltd テレビジョン受信機およびテレビジョン受信チューナ
KR960014233B1 (ko) * 1993-11-05 1996-10-14 엘지전자 주식회사 텔레비젼의 자동미세 튜닝장치 및 그 방법
US5552838A (en) * 1993-12-24 1996-09-03 Kabushiki Kaisha Toshiba Apparatus for tuning offset signals by controlling a tuner based on a difference in frequency of signals tuned by that tuner
US5739874A (en) * 1995-06-06 1998-04-14 Thomson Consumer Electronics, Inc. Tuning system for a digital satellite receiver with fine tuning provisions
GB2336731A (en) * 1998-04-22 1999-10-27 Thomson Multimedia Sa A video tuner in which data representing a PLL division is used to control other circuit parameters
KR100325771B1 (ko) * 1998-11-28 2002-04-17 윤종용 텔레비젼 신호 수신 시스템의 자동 주파수 트랙킹장치 및 그방법
JP2000349848A (ja) 1999-06-02 2000-12-15 Matsushita Electric Ind Co Ltd ディジタル放送受信装置
KR100308299B1 (ko) * 1999-06-03 2001-10-29 구자홍 튜닝 미세 조정 방법
JP2001036349A (ja) * 1999-07-22 2001-02-09 Sony Corp Ｐｌｌ検波回路
US7113230B1 (en) * 2000-03-17 2006-09-26 Matsushita Electric Industrial Co., Ltd. Method and apparatus for deriving a channel map for a digital television receiver

Also Published As

Publication number Publication date
US7643099B2 (en) 2010-01-05
EP1556950B1 (en) 2008-08-20
DE60323119D1 (de) 2008-10-02
US20070070255A1 (en) 2007-03-29
AU2003263477A1 (en) 2004-04-23
EP1556950A1 (en) 2005-07-27
WO2004032322A1 (en) 2004-04-15
CN100544202C (zh) 2009-09-23
CN1689228A (zh) 2005-10-26
JP2006502614A (ja) 2006-01-19
JP4372009B2 (ja) 2009-11-25

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties