Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Cornelis Johannis Den Hollander0
Hyun-surk Ryu0
Geoffrey M. Garner0
Fei fei Feng0
Date of Patent
February 23, 2010
0Patent Application Number
114874080
Date Filed
July 17, 2006
0Patent Primary Examiner
Patent abstract
Provided are a time synchronizing method and apparatus based on a time stamp. The time synchronizing method includes: transmitting a local time stamp based on a free-running local clock to a master node; receiving a response time stamp from the master node; calculating a delta time value based on the response time stamp; filtering the delta-time using a digital low pass filter running at the free-running local clock rate; and adjusting a local clock time based on the filtered delta time value.
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