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. 06, 2014
Filed:
Sep. 21, 2010
Ji Hoon Bae, Daejeon, KR;
Cheng Hao Quan, Daejeon, KR;
Dong Han Lee, Daejeon, KR;
Chan Won Park, Daejeon, KR;
Won Kyu Choi, Daejeon, KR;
Kwang Soo Cho, Daejeon, KR;
Man Sik Park, Daejeon, KR;
Gil Young Choi, Daejeon, KR;
Jong Suk Chae, Daejeon, KR;
Ji Hoon Bae, Daejeon, KR;
Cheng Hao Quan, Daejeon, KR;
Dong Han Lee, Daejeon, KR;
Chan Won Park, Daejeon, KR;
Won Kyu Choi, Daejeon, KR;
Kwang Soo Cho, Daejeon, KR;
Man Sik Park, Daejeon, KR;
Gil Young Choi, Daejeon, KR;
Jong Suk Chae, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Disclosed are a passive RFID (Radio Frequency Identification) system and method capable of recognizing a great deal of tags at a high speed. A reader of a passive RFID system, including: a processor dividing slots and subchannels to configure a round, recognizing subchannels that are not involved in a collision and interference by the slots, and changing the subchannels that are not involved in a collision and interference, into a sleep state; a transmission unit encoding a command generated through the processor, performing an amplitude jitter modulation on the encoded command, and transmitting the modulated command; and a reception unit acquiring and demodulating tag signals received through a plurality of subchannels by the slots, and providing the demodulated tag signals to the processor.