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Title:
VEHICLE-MOUNTED DEVICE AND TIME SYNCHRONIZATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/243384
Kind Code:
A1
Abstract:
A vehicle-mounted device for use in a vehicle-mounted network, the vehicle-mounted device comprising: a time synchronization unit that transmits and receives time synchronization information, which is information for time synchronization, between a subject device that is the vehicle-mounted device and another vehicle-mounted device, to thereby calculate a time difference from the other vehicle-mounted device, the time synchronization unit performing time synchronization with the other vehicle-mounted device on the basis of the calculated time difference; a detection unit that monitors first transmitted information, which is information transmitted from the other vehicle-mounted device to the subject device, to detect anomaly related to the contents of the first transmitted information; and an anomaly processing unit that, when an anomaly is detected by the detection unit, performs a termination process to terminate the time synchronization in the vehicle-mounted network using the time synchronization information transmitted from the other vehicle-mounted device.

Inventors:
KITAGAWA KAZUKI (JP)
INOUE KAZUYUKI (JP)
MATSUMOTO TADASHI (JP)
Application Number:
PCT/JP2023/019945
Publication Date:
December 21, 2023
Filing Date:
May 29, 2023
Export Citation:
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Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H04L7/00; H04J3/06; H04L12/28
Domestic Patent References:
WO2011077558A12011-06-30
Foreign References:
JP2012147186A2012-08-02
US20160124459A12016-05-05
JP2022085704A2022-06-08
Attorney, Agent or Firm:
ONEDEE IP PARTNERS (JP)
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