DE69516771T2 - Vorrichtung und verfahren zur verbesserung der synchronisationserzeugung eines taktsystems - Google Patents

Vorrichtung und verfahren zur verbesserung der synchronisationserzeugung eines taktsystems

Info

Publication number
DE69516771T2
DE69516771T2 DE69516771T DE69516771T DE69516771T2 DE 69516771 T2 DE69516771 T2 DE 69516771T2 DE 69516771 T DE69516771 T DE 69516771T DE 69516771 T DE69516771 T DE 69516771T DE 69516771 T2 DE69516771 T2 DE 69516771T2
Authority
DE
Germany
Prior art keywords
improving
clock system
synchronization generation
synchronization
generation
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 - Fee Related
Application number
DE69516771T
Other languages
English (en)
Other versions
DE69516771D1 (de
Inventor
Cornelis Huizer
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke 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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE69516771D1 publication Critical patent/DE69516771D1/de
Application granted granted Critical
Publication of DE69516771T2 publication Critical patent/DE69516771T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • 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
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • 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
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • 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
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
DE69516771T 1994-02-15 1995-02-01 Vorrichtung und verfahren zur verbesserung der synchronisationserzeugung eines taktsystems Expired - Fee Related DE69516771T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/196,918 US5612981A (en) 1994-02-15 1994-02-15 Apparatus and methods for improving timing recovery of a system clock
PCT/IB1995/000068 WO1995022855A2 (en) 1994-02-15 1995-02-01 Apparatus and methods for improving timing recovery of a system clock

Publications (2)

Publication Number Publication Date
DE69516771D1 DE69516771D1 (de) 2000-06-15
DE69516771T2 true DE69516771T2 (de) 2000-11-23

Family

ID=22727283

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69516771T Expired - Fee Related DE69516771T2 (de) 1994-02-15 1995-02-01 Vorrichtung und verfahren zur verbesserung der synchronisationserzeugung eines taktsystems

Country Status (5)

Country Link
US (1) US5612981A (de)
EP (1) EP0699369B1 (de)
JP (1) JPH08509346A (de)
DE (1) DE69516771T2 (de)
WO (1) WO1995022855A2 (de)

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EP0710033A3 (de) * 1994-10-28 1999-06-09 Matsushita Electric Industrial Co., Ltd. MPEG Videodekoder mit breitbandigem Speicher
JP2891149B2 (ja) * 1995-11-20 1999-05-17 日本電気株式会社 位相制御ループ方式
SE9504316D0 (sv) * 1995-12-01 1995-12-01 Nokia Satellite Systems Ab Sätt och system vid dataöverföring
DE19630397C1 (de) * 1996-07-26 1997-12-04 Siemens Ag Verfahren zum Erzielen einer gewünschten Solldifferenz zwischen dem Zählstand eines durch ein erstes Taktsignal zum Zählen veranlaßten ersten Zählers und dem Zählstand eines durch ein zweites Taktsignal zum Zählen veranlaßten zweiten Zählers
DE19647093A1 (de) * 1996-11-14 1998-05-28 Bosch Gmbh Robert Verfahren zur Aktualisierung von Zeitmarken in einem digitalen Datenstrom und Remultiplexer
JPH10322259A (ja) * 1997-05-19 1998-12-04 Matsushita Electric Ind Co Ltd デジタルコードレス通信システム
US6181706B1 (en) 1997-09-26 2001-01-30 International Business Machines Corporation Common buffer for multiple streams and control registers in an MPEG-2 compliant transport register
US6115422A (en) * 1997-09-26 2000-09-05 International Business Machines Corporation Protocol and procedure for time base change in an MPEG-2 compliant datastream
US6088357A (en) * 1997-09-26 2000-07-11 International Business Machines Corporation Auxiliary transport assist processor especially for an MPEG-2 compliant decoder
US6229801B1 (en) 1997-09-26 2001-05-08 International Business Machines Corporation Delivery of MPEG2 compliant table data
US6072771A (en) * 1997-09-26 2000-06-06 International Business Machines Corporation Detection of errors in table data
US6195403B1 (en) 1997-09-26 2001-02-27 International Business Machines Corporation Pulse generator for a voltage controlled oscillator
US6275507B1 (en) 1997-09-26 2001-08-14 International Business Machines Corporation Transport demultiplexor for an MPEG-2 compliant data stream
US6078594A (en) * 1997-09-26 2000-06-20 International Business Machines Corporation Protocol and procedure for automated channel change in an MPEG-2 compliant datastream
US6356567B2 (en) 1997-09-26 2002-03-12 International Business Machines Corporation Embedded clock recovery and difference filtering for an MPEG-2 compliant transport stream
US6377588B1 (en) * 1997-11-25 2002-04-23 Nec Corporation Method and apparatus for reducing jitter of a program clock reference in a transport stream of MPEG over ATM, and MPEG decoder
EP1001533B1 (de) * 1998-11-14 2001-09-26 Agilent Technologies Inc. a Delaware Corporation Taktgenerator
US6556250B1 (en) * 1999-08-10 2003-04-29 General Instrument Corporation 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
US6760798B1 (en) * 2000-07-13 2004-07-06 Arm Limited Interface mechanism and method for interfacing a real-time clock with a data processing circuit
KR100442286B1 (ko) * 2002-02-25 2004-07-30 엘지전자 주식회사 디지털 방송 수신기의 색재현 오차 보상 장치 및 방법
US6917247B2 (en) * 2002-04-26 2005-07-12 Broadcom Corporation NCO based timebase recovery system and method for A/V decoder
US7230651B2 (en) * 2002-10-22 2007-06-12 Broadcom Corporation A/V decoder having a clocking scheme that is independent of input data streams
US20040230673A1 (en) * 2003-04-17 2004-11-18 International Business Machines Corporation Virtual counter device tolerant to hardware counter resets
US7738039B2 (en) * 2004-02-26 2010-06-15 Thomson Licensing Method and apparatus for setting a voltage controlled crystal oscillator in a video processing device
US8022773B2 (en) 2004-12-17 2011-09-20 Mitsubishi Electric Corporation Clock signal generation device, and wireless base station
FR2898454A1 (fr) * 2006-03-13 2007-09-14 Thomson Licensing Sas Mecanisme securise pour la transmission de valeur de compteur pour la transmission d'un signal genlock sur un reseau ip
US9544638B2 (en) 2006-04-17 2017-01-10 Broadcom Corporation Method for reconstructing system time clock (STC) without carrying PCR
US20090300687A1 (en) * 2008-05-28 2009-12-03 Broadcom Corporation Edge device establishing and adjusting wireless link parameters in accordance with qos-desired video data rate
US8255962B2 (en) * 2008-05-28 2012-08-28 Broadcom Corporation Edge device reception verification/non-reception verification links to differing devices
US8209733B2 (en) * 2008-05-28 2012-06-26 Broadcom Corporation Edge device that enables efficient delivery of video to handheld device
JP5007832B2 (ja) * 2008-06-30 2012-08-22 トヨタ紡織株式会社 車載用無線装置
JP5581317B2 (ja) * 2009-05-22 2014-08-27 株式会社メガチップス 動画像再生システムおよび動画像再生方法
JP6164680B2 (ja) * 2012-12-27 2017-07-19 リーダー電子株式会社 ジッタ関連データを生成する方法および装置

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US4151485A (en) * 1977-11-21 1979-04-24 Rockwell International Corporation Digital clock recovery circuit
IT1184024B (it) * 1985-12-17 1987-10-22 Cselt Centro Studi Lab Telecom Perfezionamenti ai circuiti ad aggancio di fase numerici
EP0544358B1 (de) * 1991-11-25 1995-08-16 Koninklijke Philips Electronics N.V. Phasenregelschleife mit Frequenzabweichungsdetektor und Decodierschaltung mit einer solchen Phasenregelschleife
EP0567033B1 (de) * 1992-04-23 1997-12-10 Hitachi, Ltd. Frequenzsynthesierer
US5287182A (en) * 1992-07-02 1994-02-15 At&T Bell Laboratories Timing recovery for variable bit-rate video on asynchronous transfer mode (ATM) networks
FR2693865B1 (fr) * 1992-07-17 1994-08-26 Thomson Csf Procédé et dispositif de synchronisation d'un décodeur connecté à un réseau de transmission asynchrone, notamment de type ATM.
JP2762852B2 (ja) * 1992-07-30 1998-06-04 日本電気株式会社 周波数安定化回路
US5260978A (en) * 1992-10-30 1993-11-09 Bell Communications Research, Inc. Synchronous residual time stamp for timing recovery in a broadband network
US5486864A (en) * 1993-05-13 1996-01-23 Rca Thomson Licensing Corporation Differential time code method and apparatus as for a compressed video signal
US5381181A (en) * 1993-05-13 1995-01-10 Thomson Consumer Electronics, Inc. Clock recovery apparatus as for a compressed video signal
US5448598A (en) * 1993-07-06 1995-09-05 Standard Microsystems Corporation Analog PLL clock recovery circuit and a LAN transceiver employing the same
US5430485A (en) * 1993-09-30 1995-07-04 Thomson Consumer Electronics, Inc. Audio/video synchronization in a digital transmission system

Also Published As

Publication number Publication date
EP0699369A1 (de) 1996-03-06
EP0699369B1 (de) 2000-05-10
US5612981A (en) 1997-03-18
DE69516771D1 (de) 2000-06-15
WO1995022855A3 (en) 1995-09-28
JPH08509346A (ja) 1996-10-01
WO1995022855A2 (en) 1995-08-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee