Method and system for time synchronization

Details Method and system for time synchronization Method and system for time synchronization

2006-04-04

2006-04-04

Chin, Wellington (Department: 2664)

Multiplex communications

Communication over free space

Repeater

C370S508000, C370S519000, C375S356000

Reexamination Certificate

active

07023816

ABSTRACT:
A method for synchronizing a timing device of a client station via a communications network is disclosed. A plurality of packets is sent from a time server to the client station via the communications network. Upon receipt of the plurality of packets at the client station a time indicative of a local time of receipt of the plurality of packets is determined and the plurality of packets are returned to the time server via the communications network. Upon receipt of the plurality of packets at the time server data in dependence upon round trip delay of the packets and variance in packet spacing are determined and compared to threshold values. If the determined data are within the threshold values data indicative of a time correction are determined and sent from the time server to the client station.

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