DE602008001112D1 - Vorrichtung zur Erzeugung von Zähler-Signalen zur Darstellung von Taktsignalen und Vorrichtung zur Wiederherstellung von Taktsignalen für ein paketgeschaltetes Netzwerk - Google Patents

Vorrichtung zur Erzeugung von Zähler-Signalen zur Darstellung von Taktsignalen und Vorrichtung zur Wiederherstellung von Taktsignalen für ein paketgeschaltetes Netzwerk

Info

Publication number
DE602008001112D1
DE602008001112D1 DE602008001112T DE602008001112T DE602008001112D1 DE 602008001112 D1 DE602008001112 D1 DE 602008001112D1 DE 602008001112 T DE602008001112 T DE 602008001112T DE 602008001112 T DE602008001112 T DE 602008001112T DE 602008001112 D1 DE602008001112 D1 DE 602008001112D1
Authority
DE
Germany
Prior art keywords
clock signals
signals
packet
switched network
displaying
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.)
Active
Application number
DE602008001112T
Other languages
English (en)
Inventor
Thierry Tapie
Serge Defrance
Luis Montalvo
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.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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 Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of DE602008001112D1 publication Critical patent/DE602008001112D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • 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
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • 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
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
    • H03L7/0994—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising an accumulator
    • 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
    • H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
    • 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
    • H03L7/181—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 a numerical count result being used for locking the loop, the counter counting during fixed time intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/10—Arrangements for initial synchronisation
    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
DE602008001112T 2007-02-06 2008-02-04 Vorrichtung zur Erzeugung von Zähler-Signalen zur Darstellung von Taktsignalen und Vorrichtung zur Wiederherstellung von Taktsignalen für ein paketgeschaltetes Netzwerk Active DE602008001112D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0753082 2007-02-06

Publications (1)

Publication Number Publication Date
DE602008001112D1 true DE602008001112D1 (de) 2010-06-17

Family

ID=38461138

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602008001112T Active DE602008001112D1 (de) 2007-02-06 2008-02-04 Vorrichtung zur Erzeugung von Zähler-Signalen zur Darstellung von Taktsignalen und Vorrichtung zur Wiederherstellung von Taktsignalen für ein paketgeschaltetes Netzwerk

Country Status (6)

Country Link
US (1) US8611371B2 (de)
EP (1) EP1956737B1 (de)
JP (1) JP5189376B2 (de)
KR (1) KR101406957B1 (de)
CN (1) CN101242258B (de)
DE (1) DE602008001112D1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2935569A1 (fr) * 2009-01-30 2010-03-05 Thomson Licensing Dispositif de reception recevant des signaux de marquage temporel vehicules dans des paquets.
WO2010086077A1 (en) * 2009-01-30 2010-08-05 Thomson Licensing Method for assigning a target to a configurable oscillator of a phase-locked loop
CN102281063A (zh) * 2010-06-10 2011-12-14 中兴通讯股份有限公司 调整频率的方法以及装置
TW201145836A (en) * 2010-06-11 2011-12-16 Askey Computer Corp Device and method for locking and calibrating a frequency
US9077328B1 (en) * 2014-01-17 2015-07-07 Broadcom Corporation Method and apparatus for reference-less repeater with digital control
US10205586B2 (en) * 2016-02-02 2019-02-12 Marvell World Trade Ltd. Method and apparatus for network synchronization
US9853807B2 (en) * 2016-04-21 2017-12-26 Taiwan Semiconductor Manufacturing Co., Ltd. Automatic detection of change in PLL locking trend

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5162723A (en) * 1991-02-11 1992-11-10 Hewlett-Packard Company Sampling signal analyzer
US5381181A (en) * 1993-05-13 1995-01-10 Thomson Consumer Electronics, Inc. Clock recovery apparatus as for a compressed video signal
FR2738978B1 (fr) * 1995-09-15 1997-10-17 Thomson Multimedia Sa Procede pour la numerisation de signaux a frequence intermediaire fi en particulier de signaux video et circuit pour la mise en oeuvre de ce procede
US5699392A (en) * 1995-11-06 1997-12-16 Stellar One Corporation Method and system for the recovery of an encoder clock from an MPEG-2 transport stream
JPH1022824A (ja) * 1996-07-02 1998-01-23 Toshiba Corp 位相同期回路
EP1129580B1 (de) 1999-09-21 2008-04-09 Nxp B.V. Taktrückgewinnung
JP2001257664A (ja) 2000-03-14 2001-09-21 Nec Corp ディジタル放送受信機におけるクロック周波数同期制御回路
KR100815128B1 (ko) 2000-07-26 2008-03-20 톰슨 라이센싱 비동기 디지털 홈네트워크에서 멀티-미디어 지터 제거
JP3668157B2 (ja) * 2001-06-29 2005-07-06 松下電器産業株式会社 周波数シンセサイザ
EP1394974A3 (de) * 2002-08-30 2005-08-03 Zarlink Semiconductor Limited Adaptive Taktrückgewinnung für Paketnetzwerke
US7020791B1 (en) * 2002-09-19 2006-03-28 Nortel Networks Limited Clock recovery using a double-exponential smoothing process
US7372875B2 (en) * 2002-09-30 2008-05-13 Lucent Technologies Inc. Systems and methods for synchronization in asynchronous transport networks
GB2400255A (en) * 2003-03-31 2004-10-06 Sony Uk Ltd Video synchronisation
US7405628B2 (en) * 2006-09-29 2008-07-29 Silicon Laboratories Inc. Technique for switching between input clocks in a phase-locked loop

Also Published As

Publication number Publication date
JP2008193702A (ja) 2008-08-21
US8611371B2 (en) 2013-12-17
CN101242258B (zh) 2014-01-08
JP5189376B2 (ja) 2013-04-24
EP1956737B1 (de) 2010-05-05
CN101242258A (zh) 2008-08-13
EP1956737A1 (de) 2008-08-13
US20080187083A1 (en) 2008-08-07
KR101406957B1 (ko) 2014-06-13
KR20080073653A (ko) 2008-08-11

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