GB2365634B - Clock analysis - Google Patents

Clock analysis

Info

Publication number
GB2365634B
GB2365634B GB0019239A GB0019239A GB2365634B GB 2365634 B GB2365634 B GB 2365634B GB 0019239 A GB0019239 A GB 0019239A GB 0019239 A GB0019239 A GB 0019239A GB 2365634 B GB2365634 B GB 2365634B
Authority
GB
United Kingdom
Prior art keywords
clock analysis
clock
analysis
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
GB0019239A
Other versions
GB0019239D0 (en
GB2365634A (en
Inventor
Jonathan Diggins
Christopher David Ridley
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.)
Snell Advanced Media Ltd
Original Assignee
Snell and Wilcox Ltd
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 Snell and Wilcox Ltd filed Critical Snell and Wilcox Ltd
Priority to GB0019239A priority Critical patent/GB2365634B/en
Publication of GB0019239D0 publication Critical patent/GB0019239D0/en
Priority to PCT/GB2001/003532 priority patent/WO2002013430A2/en
Priority to AU2001276520A priority patent/AU2001276520A1/en
Publication of GB2365634A publication Critical patent/GB2365634A/en
Application granted granted Critical
Publication of GB2365634B publication Critical patent/GB2365634B/en
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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
GB0019239A 2000-08-04 2000-08-04 Clock analysis Expired - Fee Related GB2365634B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0019239A GB2365634B (en) 2000-08-04 2000-08-04 Clock analysis
PCT/GB2001/003532 WO2002013430A2 (en) 2000-08-04 2001-08-06 Clock analysis
AU2001276520A AU2001276520A1 (en) 2000-08-04 2001-08-06 Clock analysis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0019239A GB2365634B (en) 2000-08-04 2000-08-04 Clock analysis

Publications (3)

Publication Number Publication Date
GB0019239D0 GB0019239D0 (en) 2000-09-27
GB2365634A GB2365634A (en) 2002-02-20
GB2365634B true GB2365634B (en) 2004-09-22

Family

ID=9897040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0019239A Expired - Fee Related GB2365634B (en) 2000-08-04 2000-08-04 Clock analysis

Country Status (3)

Country Link
AU (1) AU2001276520A1 (en)
GB (1) GB2365634B (en)
WO (1) WO2002013430A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0229648D0 (en) * 2002-12-19 2003-01-22 Zarlink Semiconductor Ltd Method of and apparatus for recovering a reference clock
WO2007120089A1 (en) * 2006-04-13 2007-10-25 Telefonaktiebolaget Lm Ericsson (Publ) Network synchronisation supervision
EP2034642B1 (en) * 2007-09-07 2011-10-26 Siemens Aktiengesellschaft Method for transmitting synchronisation messages in a communications network
GB2454936B (en) 2007-11-23 2012-09-19 Ubiquisys Ltd Oscillator calibration
CN114845377B (en) * 2022-05-05 2024-02-23 中南大学 UWB-based high-precision wireless clock synchronization method and system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128824A (en) * 1982-10-06 1984-05-02 Standard Telephones Cables Ltd Clock pulse generation circuit
GB2255480A (en) * 1991-04-23 1992-11-04 Motorola Israel Ltd A data demodulator
EP0624892A1 (en) * 1993-05-10 1994-11-17 Schneider Electric Sa Remote control interrupter equipped with a delayed switching system
US5521927A (en) * 1994-12-13 1996-05-28 Electronics And Telecommunications Research Institute Elementary stream packetizing unit for MPEG-2 system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0697774A1 (en) * 1994-08-15 1996-02-21 Hewlett-Packard Company Clock offset estimation
US5883924A (en) * 1996-04-12 1999-03-16 Hewlett Packard Company Method and apparatus for PCR jitter measurement in an MPEG-2 transport stream using sliding window
US6175604B1 (en) * 1998-07-27 2001-01-16 Raffaele Noro Clock synchronization over data transmission networks
JP4698107B2 (en) * 1999-11-26 2011-06-08 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Improved Bayes-Kalman time estimation apparatus and method
FI108489B (en) * 1999-12-30 2002-01-31 Nokia Corp Synchronization in a packet-switched communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128824A (en) * 1982-10-06 1984-05-02 Standard Telephones Cables Ltd Clock pulse generation circuit
GB2255480A (en) * 1991-04-23 1992-11-04 Motorola Israel Ltd A data demodulator
EP0624892A1 (en) * 1993-05-10 1994-11-17 Schneider Electric Sa Remote control interrupter equipped with a delayed switching system
US5521927A (en) * 1994-12-13 1996-05-28 Electronics And Telecommunications Research Institute Elementary stream packetizing unit for MPEG-2 system

Also Published As

Publication number Publication date
GB0019239D0 (en) 2000-09-27
AU2001276520A1 (en) 2002-02-18
WO2002013430A2 (en) 2002-02-14
WO2002013430A3 (en) 2002-08-29
GB2365634A (en) 2002-02-20

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20090903 AND 20090909

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110804