TWI369593B - System and method for calibrating a tod clock - Google Patents

System and method for calibrating a tod clock

Info

Publication number
TWI369593B
TWI369593B TW095132591A TW95132591A TWI369593B TW I369593 B TWI369593 B TW I369593B TW 095132591 A TW095132591 A TW 095132591A TW 95132591 A TW95132591 A TW 95132591A TW I369593 B TWI369593 B TW I369593B
Authority
TW
Taiwan
Prior art keywords
calibrating
tod clock
tod
clock
Prior art date
Application number
TW095132591A
Other languages
English (en)
Other versions
TW200720867A (en
Inventor
Dennis J Dahlen
David A Elko
Ronald M Smith Sr
Li Zhang
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of TW200720867A publication Critical patent/TW200720867A/zh
Application granted granted Critical
Publication of TWI369593B publication Critical patent/TWI369593B/zh

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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

Landscapes

  • 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)
TW095132591A 2005-09-09 2006-09-04 System and method for calibrating a tod clock TWI369593B (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
TW200720867A TW200720867A (en) 2007-06-01
TWI369593B true TWI369593B (en) 2012-08-01

Family

ID=37854944

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095132591A TWI369593B (en) 2005-09-09 2006-09-04 System and method for calibrating a tod clock

Country Status (4)

Country Link
US (2) US7454648B2 (zh)
JP (1) JP5165871B2 (zh)
CN (1) CN100583730C (zh)
TW (1) TWI369593B (zh)

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US9112626B2 (en) * 2007-01-31 2015-08-18 International Business Machines Corporation Employing configuration information to determine the role of a server in a coordinated timing network
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US7961554B2 (en) * 2008-01-11 2011-06-14 Cellnet Innovations, Inc. Methods and systems for accurate time-keeping on metering and other network communication devices
US8416811B2 (en) * 2008-04-10 2013-04-09 International Business Machines Corporation Coordinated timing network having servers of different capabilities
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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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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
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Also Published As

Publication number Publication date
CN1929362A (zh) 2007-03-14
US20090070618A1 (en) 2009-03-12
US20070058491A1 (en) 2007-03-15
US8132038B2 (en) 2012-03-06
TW200720867A (en) 2007-06-01
US7454648B2 (en) 2008-11-18
JP2007078688A (ja) 2007-03-29
CN100583730C (zh) 2010-01-20
JP5165871B2 (ja) 2013-03-21

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