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:
May. 11, 2010
Filed:
Aug. 17, 2006
Artem Moutchkaev, Yongin-si, KR;
Woo-shik Kang, Suwon-si, KR;
Si-gyoung Koo, Seoul, KR;
Ji-hun Koo, Yongin-si, KR;
Artem Moutchkaev, Yongin-si, KR;
Woo-Shik Kang, Suwon-si, KR;
Si-gyoung Koo, Seoul, KR;
Ji-hun Koo, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
Disclosed is a correlation method to adaptively operate in a time varying phase and a correlator thereof. A correlation method according to the present invention includes performing the first correlation according to a certain reference value and a certain reference interval for correlation of a received signal; calculating an average variation of the received signal through the result of performing the first correlation; deciding a new reference value for the second correlation through the average variation; performing the second correlation according to the new reference value and the reference interval; and selecting the maximum value among the result of performing the second correlation. Accordingly, plural references are decided considering variation of a response signal between tags and also separate plural references are decided considering bit variation of a response signal in the same tag, so that a digital signal can be ideally demodulated in the environment where signal phase variation occurs.