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:
Sep. 25, 2012
Filed:
Nov. 05, 2008
Hyunseok Kim, Daejeon, KR;
Su NA Choi, Gwangju, KR;
Heyung Sub Lee, Daejeon, KR;
Nak Seon Seong, Daejeon, KR;
Cheol Sig Pyo, Daejeon, KR;
Jong-suk Chae, Daejeon, KR;
Hyunseok Kim, Daejeon, KR;
Su Na Choi, Gwangju, KR;
Heyung Sub Lee, Daejeon, KR;
Nak Seon Seong, Daejeon, KR;
Cheol Sig Pyo, Daejeon, KR;
Jong-Suk Chae, Daejeon, KR;
Electronics And Telecommunications Research Institute, Daejeon, KR;
Abstract
Disclosed is a synchronization method between a reader and tag according to an example embodiment, the method including: transmitting, by the reader, a first write command message to the tag at a first time; detecting, by the tag, the first write command message from the reader at a second time and transmitting a first response message to the reader in response to the first write message; transmitting, by the reader, a second write command message including first time information of the first time to the tag; and correcting, by the tag, a clock offset using a difference between the first time and the second time.