CN100583730C - 用于校准tod时钟的装置和方法 - Google Patents

用于校准tod时钟的装置和方法 Download PDF

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Publication number
CN100583730C
CN100583730C CN200610115783.3A CN200610115783A CN100583730C CN 100583730 C CN100583730 C CN 100583730C CN 200610115783 A CN200610115783 A CN 200610115783A CN 100583730 C CN100583730 C CN 100583730C
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China
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oscillator
value
tod
sampling
deviant
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Chinese (zh)
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CN1929362A (zh
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戴维·A·埃尔科
丹尼斯·J·达伦
老罗纳德·M·史密斯
张立
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International Business Machines Corp
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International Business Machines Corp
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/14—Time supervision arrangements, e.g. real time clock
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G7/00—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
    • H04J3/0644—External master-clock
    • 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
    • H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/28—Timers or timing mechanisms used in protocols

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Clocks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
CN200610115783.3A 2005-09-09 2006-08-17 用于校准tod时钟的装置和方法 Active CN100583730C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/223,642 US7454648B2 (en) 2005-09-09 2005-09-09 System and method for calibrating a time of day clock in a computing system node provided in a multi-node network
US11/223,642 2005-09-09

Publications (2)

Publication Number Publication Date
CN1929362A CN1929362A (zh) 2007-03-14
CN100583730C true CN100583730C (zh) 2010-01-20

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CN200610115783.3A Active CN100583730C (zh) 2005-09-09 2006-08-17 用于校准tod时钟的装置和方法

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US (2) US7454648B2 (https=)
JP (1) JP5165871B2 (https=)
CN (1) CN100583730C (https=)
TW (1) TWI369593B (https=)

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US8416811B2 (en) * 2008-04-10 2013-04-09 International Business Machines Corporation Coordinated timing network having servers of different capabilities
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US8055929B2 (en) 2008-08-06 2011-11-08 International Business Machines Corporation Method and apparatus for maintaining time in a computer system
US7873862B2 (en) * 2008-10-21 2011-01-18 International Business Machines Corporation Maintaining a primary time server as the current time server in response to failure of time code receivers of the primary time server
US8369186B2 (en) * 2009-01-09 2013-02-05 Primex Wireless, Inc. System and method of increasing battery life of a timekeeping device
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US8699484B2 (en) 2010-05-24 2014-04-15 At&T Intellectual Property I, L.P. Methods and apparatus to route packets in a network
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US8959381B2 (en) * 2012-09-05 2015-02-17 Khalifa University of Science, Technology, and Research Method and system for clock offset and skew estimation
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CN104935630B (zh) * 2015-04-23 2018-03-23 南京信息工程大学 基于http的毫秒级时钟校准方法
CN106569544B (zh) * 2015-10-10 2019-07-30 上海东软载波微电子有限公司 实时时钟芯片及其时钟校准方法、装置
US9645553B1 (en) * 2016-01-28 2017-05-09 Raytheon Bbn Technologies Corp. Secure time reference using multiple time sources
CN108616977B (zh) * 2018-06-21 2020-06-16 同济大学 一种基于最小二乘平差的uwb多点时延校正方法
US10903924B2 (en) 2019-02-07 2021-01-26 International Business Machines Corporation Setting primary reference time of server time protocol facility of a coordinated timing network to a precision-time-protocol source
US10958727B2 (en) * 2019-02-07 2021-03-23 International Business Machines Corporation Facilitating precision time protocol use in a coordinated timing network
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Also Published As

Publication number Publication date
CN1929362A (zh) 2007-03-14
US20090070618A1 (en) 2009-03-12
US8132038B2 (en) 2012-03-06
JP5165871B2 (ja) 2013-03-21
US7454648B2 (en) 2008-11-18
TW200720867A (en) 2007-06-01
US20070058491A1 (en) 2007-03-15
TWI369593B (en) 2012-08-01
JP2007078688A (ja) 2007-03-29

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