JP2000099485A5 - - Google Patents

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Publication number
JP2000099485A5
JP2000099485A5 JP1999239133A JP23913399A JP2000099485A5 JP 2000099485 A5 JP2000099485 A5 JP 2000099485A5 JP 1999239133 A JP1999239133 A JP 1999239133A JP 23913399 A JP23913399 A JP 23913399A JP 2000099485 A5 JP2000099485 A5 JP 2000099485A5
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JP
Japan
Prior art keywords
circuit
node
data packet
timing data
communication link
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.)
Pending
Application number
JP1999239133A
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English (en)
Japanese (ja)
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JP2000099485A (ja
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Publication date
Priority claimed from US09/151,017 external-priority patent/US6278710B1/en
Application filed filed Critical
Publication of JP2000099485A publication Critical patent/JP2000099485A/ja
Publication of JP2000099485A5 publication Critical patent/JP2000099485A5/ja
Pending legal-status Critical Current

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JP11239133A 1998-09-10 1999-08-26 時間同期を強化した分散システム Pending JP2000099485A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US151017 1998-09-10
US09/151,017 US6278710B1 (en) 1998-09-10 1998-09-10 Enhancements to time synchronization in distributed systems

Publications (2)

Publication Number Publication Date
JP2000099485A JP2000099485A (ja) 2000-04-07
JP2000099485A5 true JP2000099485A5 (https=) 2006-08-10

Family

ID=22536990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11239133A Pending JP2000099485A (ja) 1998-09-10 1999-08-26 時間同期を強化した分散システム

Country Status (4)

Country Link
US (1) US6278710B1 (https=)
EP (2) EP0986202B1 (https=)
JP (1) JP2000099485A (https=)
DE (2) DE69933594T2 (https=)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9821518D0 (en) * 1998-10-02 1998-11-25 Sony Uk Ltd Digital signal processing and signal format
US6981063B1 (en) * 1999-01-19 2005-12-27 Siemens Aktiengesellschaft Method for time synchronization of a computer network, and computer network with time synchronization
US6661811B1 (en) * 1999-02-12 2003-12-09 Koninklijke Philips Electronics N.V. Method of and apparatus for communicating isochronous data
DE19912556A1 (de) * 1999-03-19 2000-09-21 Philips Corp Intellectual Pty Drahtloses Netzwerk mit einer Anwendertaktsynchronisation
US6512990B1 (en) * 2000-01-05 2003-01-28 Agilent Technologies, Inc. Distributed trigger node
US6944187B1 (en) * 2000-08-09 2005-09-13 Alcatel Canada Inc. Feature implementation in a real time stamp distribution system
US7151819B2 (en) * 2000-12-29 2006-12-19 Bellsouth Ip Corporation End-to-end network testing
US6853708B1 (en) 2000-12-29 2005-02-08 Bellsouth Intellectual Property Corporation End-to-end network testing
DE50200454D1 (de) * 2001-06-07 2004-06-24 Siemens Ag Verfahren zum Übermitteln von Zeitinformation über ein Datenpaketnetz
US7251199B2 (en) * 2001-12-24 2007-07-31 Agilent Technologies, Inc. Distributed system time synchronization including a timing signal path
GB2385684A (en) * 2002-02-22 2003-08-27 Sony Uk Ltd Frequency synchronisation of clocks
US7114091B2 (en) * 2002-03-18 2006-09-26 National Instruments Corporation Synchronization of distributed systems
DE10218425A1 (de) * 2002-04-24 2003-11-06 Grundig Ag I Ins Verfahren und Vorrichtung zum Synchronisieren eines Empfängers mit einem Sender bei einer Datenübertragung über ein asynchrones Netzwerk
US20040008973A1 (en) * 2002-07-12 2004-01-15 Marshall Robert Alexander Method and system for synchronizing operation of remote timer with centeral control control unit
CN101534417B (zh) * 2002-12-06 2013-07-17 汤姆森许可贸易公司 用于远程调谐和时钟同步的方法和系统
US7379480B2 (en) * 2003-01-16 2008-05-27 Rockwell Automation Technologies, Inc. Fast frequency adjustment method for synchronizing network clocks
JP4295316B2 (ja) * 2003-02-20 2009-07-15 ザ−リンク・セミコンダクタ−・インコ−ポレイテッド 複数のパケットネットワークを通じたクロックの調整
US7233316B2 (en) * 2003-05-01 2007-06-19 Thomson Licensing Multimedia user interface
US8432942B1 (en) 2003-05-16 2013-04-30 Apple Inc. Providing a timing source for multiple nodes coupled to a circuit-switched network
US7286624B2 (en) * 2003-07-03 2007-10-23 Navcom Technology Inc. Two-way RF ranging system and method for local positioning
DE10333932A1 (de) * 2003-07-25 2005-02-24 Robert Bosch Gmbh Synchronisation von datenverarbeitenden Einheiten
WO2005077063A2 (en) * 2004-02-09 2005-08-25 Semtech Corporation Method and apparatus for aligning time references when separated by an unreliable data packet network
US7315791B2 (en) * 2004-02-18 2008-01-01 National Instruments Corporation Application programming interface for synchronizing multiple instrumentation devices
JP2006004018A (ja) * 2004-06-15 2006-01-05 Ntt Docomo Inc 時刻管理サーバ、情報端末、時刻管理システム及び時刻管理方法
US20060059269A1 (en) * 2004-09-13 2006-03-16 Chien Chen Transparent recovery of switch device
US7561598B2 (en) * 2004-09-13 2009-07-14 Agilent Technologies, Inc. Add-on module for synchronizing operations of a plurality of devices
US8930579B2 (en) * 2004-09-13 2015-01-06 Keysight Technologies, Inc. System and method for synchronizing operations of a plurality of devices via messages over a communication network
US20060056424A1 (en) * 2004-09-15 2006-03-16 Yolin Lih Packet transmission using output buffer
US7768931B2 (en) 2004-10-07 2010-08-03 Westerngeco L.L.C. Hardware-based network packet timestamps: improved network clock synchronization
US7333468B1 (en) * 2005-05-16 2008-02-19 Sun Microsystems, Inc. Digital phase locked loops for packet stream rate matching and restamping
US7990887B2 (en) * 2006-02-22 2011-08-02 Cisco Technology, Inc. Sampling test of network performance
US20080031283A1 (en) * 2006-08-07 2008-02-07 Martin Curran-Gray Time synchronization for network aware devices
DE102007011684A1 (de) 2007-03-09 2008-09-11 Robert Bosch Gmbh Verfahren, CAN-Bus-Treiber und CAN-Bus-System zur Rückgewinnung einer Taktfrequenz eines CAN-Busses
KR100872771B1 (ko) * 2007-09-04 2008-12-09 한국전자통신연구원 암호화 통신에서 키 재동기 프레임을 이용하여 시간정보를동기화하는 장치 및 방법
EP2034642B1 (de) * 2007-09-07 2011-10-26 Siemens Aktiengesellschaft Verfahren zur Übertragung von Synchronisationsnachrichten in einem Kommunikationsnetz
US8559412B1 (en) 2007-12-31 2013-10-15 Rockstar Consortium Us Lp Communication time information in a network to enable synchronization
WO2009098757A1 (ja) * 2008-02-05 2009-08-13 Fujitsu Limited フレームロス測定方法、システムおよび装置
US8073976B2 (en) 2008-03-27 2011-12-06 Microsoft Corporation Synchronizing clocks in an asynchronous distributed system
US8868789B2 (en) 2008-06-02 2014-10-21 Tttech Computertechnik Aktiengesellschaft Method for synchronizing local clocks in a distributed computer network
CN101753609B (zh) * 2008-12-15 2012-09-19 中国移动通信集团公司 分布式系统版本控制方法、节点及系统
JP5336611B2 (ja) * 2009-02-24 2013-11-06 テレフオンアクチーボラゲット エル エム エリクソン(パブル) 通信ネットワークにおけるクロック回復
EP2228927A1 (en) * 2009-03-12 2010-09-15 Alcatel Lucent Method for processing distributed data having a chosen type for synchronizing communication nodes of a data packet network, and associated device
US8626980B2 (en) 2009-05-20 2014-01-07 Chronologic Pty. Ltd. High density, low jitter, synchronous USB expansion
US8307235B2 (en) 2010-05-05 2012-11-06 National Instruments Corporation Cross controller clock synchronization
US9306766B2 (en) 2011-03-28 2016-04-05 Honeywell International Inc. Versatile source port enforcement for data networks
US20120278421A1 (en) * 2011-04-27 2012-11-01 Centec Networks (Suzhou) Co., Ltd. Providing a data sample in a measurement and control system
US9756153B2 (en) 2011-06-01 2017-09-05 Finite State Research Llc Method for improving accuracy in computation of one-way transfer time for network time synchronization
US8665884B2 (en) 2011-08-25 2014-03-04 Honeywell International Inc. Embedded end-to-end delay information for data networks
US9628209B2 (en) 2013-01-17 2017-04-18 Viavi Solutions Inc. Time synchronization in distributed network testing equipment
US9759703B2 (en) 2013-09-27 2017-09-12 Li-Cor, Inc. Systems and methods for measuring gas flux
US9723610B2 (en) * 2015-04-07 2017-08-01 Qualcomm Incorporated Multi-layer timing synchronization framework
DE102016200964A1 (de) * 2016-01-25 2017-07-27 Siemens Aktiengesellschaft Verfahren zur Informationsübertragung in einem Kommunikationsnetz
US11061802B2 (en) * 2016-10-17 2021-07-13 Zomojo Pty Ltd Precision time stamping method and system
US10848160B2 (en) 2018-07-10 2020-11-24 Aerotech, Inc. Devices, systems, and methods for reducing jitter in control systems
WO2020201950A1 (en) 2019-04-01 2020-10-08 Zomojo Pty Ltd A method and apparatus for network time syncing
EP3973673A4 (en) 2019-05-22 2023-01-18 Cisco Technology, Inc. NETWORKING DEVICE AND METHOD OF NETWORKING
AU2020302325B2 (en) 2019-06-25 2025-05-22 Zomojo Pty Ltd A method and apparatus for high precision time stamping
US11438273B2 (en) 2020-07-20 2022-09-06 Altiostar Networks, Inc. Real-time processing in wireless communications systems
US12372998B2 (en) * 2022-12-19 2025-07-29 Microsoft Technology Licensing, Llc Synchronization of integrated circuit dies that contain a processor and clock generator by adjusting delay lines based on phase count

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890222A (en) * 1984-12-17 1989-12-26 Honeywell Inc. Apparatus for substantially syncronizing the timing subsystems of the physical modules of a local area network
DE3638947C2 (de) * 1986-11-14 1995-08-31 Bosch Gmbh Robert Verfahren zur Synchronisation von Rechnern eines Mehrrechnersystems und Mehrrechnersystem
SE466123B (sv) * 1989-04-25 1991-12-16 Kvaser Consultant Ab Anordning foer att synkonisera data i ett datoriserat system, som innefattar en gemensam seriell datakommunikationskanal
US5537549A (en) * 1993-04-28 1996-07-16 Allen-Bradley Company, Inc. Communication network with time coordinated station activity by time slot and periodic interval number
US5566180A (en) * 1994-12-21 1996-10-15 Hewlett-Packard Company Method for recognizing events and synchronizing clocks
US5822383A (en) * 1995-12-15 1998-10-13 Cisco Technology, Inc. System and method for maintaining network synchronization utilizing digital phase comparison techniques with synchronous residual time stamps
US5640388A (en) * 1995-12-21 1997-06-17 Scientific-Atlanta, Inc. Method and apparatus for removing jitter and correcting timestamps in a packet stream
US6665316B1 (en) * 1998-09-29 2003-12-16 Agilent Technologies, Inc. Organization of time synchronization in a distributed system

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