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:
Apr. 09, 2013
Filed:
Oct. 24, 2007
Jae-young Jung, Daejeon, KR;
Hae Won Son, Daejeon, KR;
Jun Ho Yeo, Daejeon, KR;
Jong Hyun Seo, Daejeon, KR;
Su NA Choi, Daejeon, KR;
Gil Young Choi, Daejeon, KR;
Cheol Sig Pyo, Daejeon, KR;
Jae-Young Jung, Daejeon, KR;
Hae Won Son, Daejeon, KR;
Jun Ho Yeo, Daejeon, KR;
Jong Hyun Seo, Daejeon, KR;
Su Na Choi, Daejeon, KR;
Gil Young Choi, Daejeon, KR;
Cheol Sig Pyo, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided are a method and apparatus for stopping power supply to a radio frequency identification (RFID) system. The apparatus includes: a power supplier supplying power to a high RFID tag; an input unit rectifying and boosting an input predetermined frequency band signal and outputting a direct-current (DC) voltage signal; a wake-up determiner comparing a voltage of the DC voltage signal output from the input unit with a predetermined reference voltage and outputting a HIGH signal or a LOW signal; and a switch stopping power supply to the high RFID tag if the wake-up determiner outputs the LOW signal.