Synchronizing apparatus and method in packet network

Details Synchronizing apparatus and method in packet network Synchronizing apparatus and method in packet network

2011-01-25

2011-01-25

Pham, Chi H. (Department: 2471)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S345000

Reexamination Certificate

active

07876791

ABSTRACT:
Provided are a synchronizing apparatus and method for performing synchronization in a packet network. The synchronizing apparatus includes a sampling unit to measure a time difference using a plurality of time stamps included in a plurality of two-way message packets, an estimating unit to estimate a frequency offset by applying a baseline algorithm to the time difference, a verifying unit to verify the frequency offset to remove an error caused by network delay variation, and a synchronizing unit to remove the frequency offset from a local slave clock signal and generate a slave clock signal synchronized to a clock signal of a master device.

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