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. 23, 2010
Filed:
Jul. 17, 2006
Hyun-surk Ryu, Suwon-si, KR;
Geoffrey M. Garner, Red Bank, NJ (US);
Fei Fei Feng, Yongin-si, KR;
Cornelis Johannis Den Hollander, Suwon-si, KR;
Hyun-surk Ryu, Suwon-si, KR;
Geoffrey M. Garner, Red Bank, NJ (US);
Fei fei Feng, Yongin-si, KR;
Cornelis Johannis Den Hollander, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
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.