Patent ID: 11953938
Assignee: GOOGLE LLC
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 6:
7. A system, comprising:
a memory;
a local clock on a host machine;
a receiver module to receive response timestamps from a first group of time masters and a second group of time masters, the second group of time masters configured differently than the first group of time masters with respect to connection to a reliable source of time, each response timestamp associated with a current local timestamp; and
a processor programmed to:
receive an initial local timestamp based on the local clock;
register in memory response timestamps received by the receiver module;
calculate time offset intervals for the first group of time masters based on the initial local timestamp and the response timestamps of the first group of time masters;
calculate time offset intervals for the second group of time masters based on the initial local timestamp and the response timestamps of the second group of time masters;
determine an agreement based smallest time offset interval consistent among both groups of time masters; and
adjust the local clock based on the agreement based smallest time offset interval consistent among both groups of time masters.