Patent ID: 11876609
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A time synchronization device, comprising:
a plurality of precision time protocol (PTP) slave units, implemented using a computer, that are allocated to a plurality of corresponding domains and that are configured to synchronize with respective times of the plurality of corresponding domains, the plurality of corresponding domains being different from each other, and each domain having independent time management and being a PTP domain; and
a time integration unit, implemented using a computer, that is configured to use time information that is a time after a slave unit of the plurality of PTP slave units synchronizes with a time of a master device allocated to the corresponding domain and synchronization accuracy information that is an accuracy of synchronization of the slave unit with the time of the master device to generate a single integrated time.