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:
Mar. 04, 2014
Filed:
May. 25, 2010
Donghan Lee, Daejeon, KR;
Sang Gee Kang, Daejeon, KR;
Kwang-soo Cho, Daejeon, KR;
Man Sik Park, Daejeon, KR;
Chan-won Park, Daejeon, KR;
Cheng-hao Quan, Daejeon, KR;
Ji-hoon Bae, Daejeon, KR;
Gil Young Choi, Daejeon, KR;
Jong-suk Chae, Daejeon, KR;
Donghan Lee, Daejeon, KR;
Sang Gee Kang, Daejeon, KR;
Kwang-Soo Cho, Daejeon, KR;
Man Sik Park, Daejeon, KR;
Chan-Won Park, Daejeon, KR;
Cheng-Hao Quan, Daejeon, KR;
Ji-Hoon Bae, Daejeon, KR;
Gil Young Choi, Daejeon, KR;
Jong-Suk Chae, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided are an RFID reader and a method for suppressing transmission leakage signals thereof. The RFID reader includes a first loop, a second loop, and a digital signal processor. The first loop suppresses a first transmission leakage signal of an RX signal in response to a first leakage control signal. The second loop suppresses a second transmission leakage signal of the RX signal, received through the first loop, in response to a second leakage control signal. The digital signal processor generates the first leakage control signal and the second leakage control signal. The digital signal processor generates the first leakage control signal until the level of the first transmission leakage signal becomes equal to or lower than the level of a first reference transmission leakage signal.