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:
Jan. 25, 2011
Filed:
Jul. 24, 2008
Hong-kyu Jung, Daejeon-si, KR;
Fei Fei Feng, Yongin-si, KR;
Geoffrey M. Garner, Red Bank, NJ (US);
Byung-suk Kim, Uiwang-si, KR;
Chul-ki Lee, Seoul, KR;
Hong-kyu Jung, Daejeon-si, KR;
Fei Fei Feng, Yongin-si, KR;
Geoffrey M. Garner, Red Bank, NJ (US);
Byung-suk Kim, Uiwang-si, KR;
Chul-ki Lee, Seoul, KR;
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.