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

Claim 12:
13. A non-transitory recording medium storing a program, wherein execution of the program causes one or more computers to perform operations comprising:
synchronizing, by a plurality of precision time protocol (PTP) slave units allocated to a plurality of corresponding domains 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
using 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 main to generate a single integrated time.