Title:
TIME SYNCHRONIZATION DEVICE, TIME SYNCHRONIZATION METHOD, AND TIME SYNCHRONIZATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/233588
Kind Code:
A1
Abstract:
A transfer device (10) sets, as a target port, each of a plurality of ports that receive via different transfer devices (10) time information which has been transmitted from a master device (40). The transfer device (10) calculates, with respect to the target ports, a cumulative frequency deviation that is a cumulative value of frequency deviations from the master device (40). On the basis of the cumulative frequency deviation, the transfer device (10) determines a time synchronization port from among the plurality of ports. The transfer device (10) updates local time on the basis of time information received by the determined time synchronization port.
Inventors:
SAKAGAMI YUSUKE (JP)
TANIGUCHI SACHIKO (JP)
TOMISAWA TOSHIAKI (JP)
SAKAGUCHI NAOTAKA (JP)
TANIGUCHI SACHIKO (JP)
TOMISAWA TOSHIAKI (JP)
SAKAGUCHI NAOTAKA (JP)
Application Number:
PCT/JP2022/022331
Publication Date:
December 07, 2023
Filing Date:
June 01, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04L7/00
Foreign References:
| JP2020202498A | 2020-12-17 | |||
| JP2017022526A | 2017-01-26 | |||
| JP2012023654A | 2012-02-02 |
Attorney, Agent or Firm:
CROSS-BORDER PATENT FIRM (JP)
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