The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2014
Filed:
Apr. 20, 2011
Applicant:
George P. Zampetti, Livermore, CA (US);
Inventor:
George P. Zampetti, Livermore, CA (US);
Assignee:
Symmetricom, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 3/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
High accuracy timing over packet networks is achieved by generating correction factors from multiple separation intervals and timing information contained in packets in both directions between a master and a slave. The methods are based on evaluating the weighted average of short-term, medium-term, and long-term measurements of local clock offset. Weighted averages are used to develop robust correction terms that are modified with an α-shaping factor to provide additional immunity to packet network instabilities.