WO2006044139A3 - System and method for time synchronizing nodes in an automotive network using input capture - Google Patents

System and method for time synchronizing nodes in an automotive network using input capture Download PDF

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Publication number
WO2006044139A3
WO2006044139A3 PCT/US2005/034863 US2005034863W WO2006044139A3 WO 2006044139 A3 WO2006044139 A3 WO 2006044139A3 US 2005034863 W US2005034863 W US 2005034863W WO 2006044139 A3 WO2006044139 A3 WO 2006044139A3
Authority
WO
WIPO (PCT)
Prior art keywords
input capture
nodes
communication links
time synchronizing
network
Prior art date
Application number
PCT/US2005/034863
Other languages
French (fr)
Other versions
WO2006044139A2 (en
Inventor
Patrick D Jordan
Hai Dong
Hugh W Johnson
Prakash U Kartha
Original Assignee
Motorola Inc
Patrick D Jordan
Hai Dong
Hugh W Johnson
Prakash U Kartha
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
Priority claimed from US11/014,936 external-priority patent/US7593429B2/en
Application filed by Motorola Inc, Patrick D Jordan, Hai Dong, Hugh W Johnson, Prakash U Kartha filed Critical Motorola Inc
Publication of WO2006044139A2 publication Critical patent/WO2006044139A2/en
Publication of WO2006044139A3 publication Critical patent/WO2006044139A3/en

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Classifications

    • 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
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays

Abstract

The network has a plurality of nodes that are joined by communication links for the transmission of data there between. Each node of the switch fabric may include a processor, a memory, a clock, a transceiver, and an input capture. The memory is adapted to store and retain timer offsets associated with communication links with neighboring nodes. The transceiver is adapted to transmit and receive synchronization messages between the node and neighboring nodes. The input capture is adapted to capture a timestamp associated with the transmission of synchronization messages. The processor is configured to compute the timer offsets associated with the communication links with neighboring nodes based on the captured timestamps by the input capture function. The computed offsets may then be broadcast and stored by the nodes for subsequent use in time synchronizing data packets through the switch fabric network.
PCT/US2005/034863 2004-10-14 2005-09-29 System and method for time synchronizing nodes in an automotive network using input capture WO2006044139A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US61876804P 2004-10-14 2004-10-14
US60/618,768 2004-10-14
US11/014,936 US7593429B2 (en) 2004-10-14 2004-12-17 System and method for time synchronizing nodes in an automotive network using input capture
US11/014,936 2004-12-17

Publications (2)

Publication Number Publication Date
WO2006044139A2 WO2006044139A2 (en) 2006-04-27
WO2006044139A3 true WO2006044139A3 (en) 2006-08-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/034863 WO2006044139A2 (en) 2004-10-14 2005-09-29 System and method for time synchronizing nodes in an automotive network using input capture

Country Status (1)

Country Link
WO (1) WO2006044139A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011087472B4 (en) 2011-11-30 2016-10-20 Continental Automotive Gmbh Method for synchronizing clocks in nodes of a vehicle network and for implementing the method of established nodes
EP3166242A1 (en) * 2015-11-05 2017-05-10 Robert Bosch Gmbh Clock synchronization monitoring in an ethernet-based network
CN109450582A (en) * 2018-11-01 2019-03-08 百度在线网络技术（北京）有限公司 Sensor time stabs synchronous detecting method, device, equipment, medium and vehicle
CN114124276B (en) * 2020-08-31 2023-07-18 华为技术有限公司 Clock synchronization method, device and system in distributed system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195091A (en) * 1991-07-09 1993-03-16 At&T Bell Laboratories Adaptive synchronization arrangement
US5612953A (en) * 1991-02-22 1997-03-18 International Business Machines Corporation Multi-media serial line switching adapter for parallel networks and heterogeneous and homologous computer systems
US20020080829A1 (en) * 1998-07-22 2002-06-27 Yoram Ofek Link transmission control with common time reference
US6420797B1 (en) * 1998-02-19 2002-07-16 Robert Edward Steele Electrical/electronic system architecture
US20030091035A1 (en) * 2000-11-21 2003-05-15 Roy Subhash C. Phase and frequency drift and jitter compensation in a distributed telecommunications switch
US6611519B1 (en) * 1998-08-19 2003-08-26 Swxtch The Rules, Llc Layer one switching in a packet, cell, or frame-based network
US6747365B2 (en) * 2001-08-31 2004-06-08 Motorola, Inc. Vehicle active network adapted to legacy architecture

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5612953A (en) * 1991-02-22 1997-03-18 International Business Machines Corporation Multi-media serial line switching adapter for parallel networks and heterogeneous and homologous computer systems
US5195091A (en) * 1991-07-09 1993-03-16 At&T Bell Laboratories Adaptive synchronization arrangement
US6420797B1 (en) * 1998-02-19 2002-07-16 Robert Edward Steele Electrical/electronic system architecture
US20020080829A1 (en) * 1998-07-22 2002-06-27 Yoram Ofek Link transmission control with common time reference
US6611519B1 (en) * 1998-08-19 2003-08-26 Swxtch The Rules, Llc Layer one switching in a packet, cell, or frame-based network
US20030091035A1 (en) * 2000-11-21 2003-05-15 Roy Subhash C. Phase and frequency drift and jitter compensation in a distributed telecommunications switch
US6747365B2 (en) * 2001-08-31 2004-06-08 Motorola, Inc. Vehicle active network adapted to legacy architecture

Also Published As

Publication number Publication date
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