Patent ID: 11927923
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 2:
3. The time synchronization system according to claim 1, wherein the management apparatus is further configured to:
determine that the first subset of time synchronization apparatuses is normal time variation;
determine that a second subset of time synchronization apparatuses of the plurality of time synchronization apparatuses is abnormal time variation, wherein the second subset of time synchronization is different from the first subset of time synchronization apparatuses, and
transmit, in accordance with a determination that the first subset of time synchronization apparatuses is the normal time variation, following OK to the first subset of time synchronization apparatuses; and
transmit, in accordance with a determination that the second subset of time synchronization apparatuses is the abnormal time variation, following NG to the second subset of time synchronization apparatuses.