ATE307459T1 - Vorrichtung und verfahren zur erzeugung eines taktsignals mit hoher frequenzgenauigkeit - Google Patents

Vorrichtung und verfahren zur erzeugung eines taktsignals mit hoher frequenzgenauigkeit

Info

Publication number
ATE307459T1
ATE307459T1 AT00952618T AT00952618T ATE307459T1 AT E307459 T1 ATE307459 T1 AT E307459T1 AT 00952618 T AT00952618 T AT 00952618T AT 00952618 T AT00952618 T AT 00952618T AT E307459 T1 ATE307459 T1 AT E307459T1
Authority
AT
Austria
Prior art keywords
video signal
clock signal
absence
incoming video
generating
Prior art date
Application number
AT00952618T
Other languages
English (en)
Inventor
David E Zeidler
Robert M Simons
Steven M Corso
Original Assignee
Gen Instrument 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 Gen Instrument Corp filed Critical Gen Instrument Corp
Application granted granted Critical
Publication of ATE307459T1 publication Critical patent/ATE307459T1/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
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/18—Timing circuits for raster scan displays
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail
    • H03L7/146—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail by using digital means for generating the oscillator control signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/126—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal indirectly commands a frequency generator

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Graphics (AREA)
  • Television Signal Processing For Recording (AREA)
  • Synchronizing For Television (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
AT00952618T 1999-08-10 2000-08-08 Vorrichtung und verfahren zur erzeugung eines taktsignals mit hoher frequenzgenauigkeit ATE307459T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/370,928 US6556250B1 (en) 1999-08-10 1999-08-10 Method and apparatus for providing a timing signal with high frequency accuracy in video equipment for supporting an on-screen display in the absence of a video signal
PCT/US2000/021578 WO2001011875A1 (en) 1999-08-10 2000-08-08 Method and apparatus for providing a clock signal with high frequency accuracy

Publications (1)

Publication Number Publication Date
ATE307459T1 true ATE307459T1 (de) 2005-11-15

Family

ID=23461772

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00952618T ATE307459T1 (de) 1999-08-10 2000-08-08 Vorrichtung und verfahren zur erzeugung eines taktsignals mit hoher frequenzgenauigkeit

Country Status (8)

Country Link
US (1) US6556250B1 (de)
EP (1) EP1205065B1 (de)
CN (1) CN1199442C (de)
AT (1) ATE307459T1 (de)
AU (1) AU6528300A (de)
CA (1) CA2391735A1 (de)
DE (1) DE60023311D1 (de)
WO (1) WO2001011875A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001127728A (ja) * 1999-10-29 2001-05-11 Oki Electric Ind Co Ltd 受信回路
US8331456B2 (en) 2002-09-27 2012-12-11 Broadcom Corporation System and method for audio and visual synchronization
US7953194B2 (en) 2002-09-27 2011-05-31 Broadcom Corporation Handling video transition errors in video on demand streams
CN101202616B (zh) * 2007-12-14 2011-12-28 华为技术有限公司 控制数据的处理方法及装置
CN101557230B (zh) * 2008-04-10 2011-07-20 中芯国际集成电路制造(上海)有限公司 一种锁相环自校准系统以及方法
TWI429199B (zh) 2010-06-22 2014-03-01 Phison Electronics Corp 產生參考時脈訊號的方法及資料收發系統
CN102315849B (zh) * 2010-07-01 2014-05-14 群联电子股份有限公司 产生参考时钟信号的方法及数据收发系统

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122488A (en) 1976-05-10 1978-10-24 Nippon Television Industry Corporation Sync signal generator with memorization of phase detection output
US4631588A (en) 1985-02-11 1986-12-23 Ncr Corporation Apparatus and its method for the simultaneous presentation of computer generated graphics and television video signals
JPH0528850Y2 (de) * 1987-02-18 1993-07-23
JPH02309778A (ja) * 1989-05-24 1990-12-25 Victor Co Of Japan Ltd クロック生成回路
US5459524A (en) * 1991-11-18 1995-10-17 Cooper; J. Carl Phase modulation demodulator apparatus and method
DE4138543A1 (de) * 1991-11-23 1993-05-27 Philips Patentverwaltung Digitaler phasenregelkreis
US5473640A (en) 1994-01-21 1995-12-05 At&T Corp. Phase-lock loop initialized by a calibrated oscillator-control value
US5612981A (en) 1994-02-15 1997-03-18 Philips Electronics North America Corporation Apparatus and methods for improving timing recovery of a system clock
US5473385A (en) * 1994-06-07 1995-12-05 Tv/Com Technologies, Inc. Clock correction in a video data decoder using video synchronization signals
US5502502A (en) * 1995-03-06 1996-03-26 Honeywell Inc. PLL-based method and apparatus for generating video drive signals from various sync formats
KR0143115B1 (ko) * 1995-06-09 1998-07-15 김광호 심볼 타이밍 복구회로 및 방법
WO1997007594A1 (fr) * 1995-08-14 1997-02-27 Hitachi, Ltd. Circuit de verrouillage de phase et dispositif de reproduction d'image
EP0836282B1 (de) * 1996-10-08 2002-06-12 Sony Corporation Empfangsvorrichtung und -verfahren und Phasenregelkreis
JP3331894B2 (ja) * 1997-01-30 2002-10-07 ヤマハ株式会社 Ｐｌｌ回路
US5796392A (en) * 1997-02-24 1998-08-18 Paradise Electronics, Inc. Method and apparatus for clock recovery in a digital display unit
US6310660B1 (en) * 1998-03-18 2001-10-30 Sony Corporation Video signal dropout detector
US6009006A (en) * 1998-08-07 1999-12-28 Thomson Consumer Electronics, Inc. Synchronized high voltage generator

Also Published As

Publication number Publication date
EP1205065B1 (de) 2005-10-19
US6556250B1 (en) 2003-04-29
EP1205065A1 (de) 2002-05-15
WO2001011875A1 (en) 2001-02-15
CA2391735A1 (en) 2001-02-15
CN1199442C (zh) 2005-04-27
CN1378739A (zh) 2002-11-06
DE60023311D1 (de) 2006-03-02
AU6528300A (en) 2001-03-05

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Legal Events

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