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:
Dec. 08, 2009
Martin Strzelczyk, New Market, MD (US);
Sean Connolly, Stony Brook, NY (US);
Mark Duron, East Patchogue, NY (US);
Martin Strzelczyk, New Market, MD (US);
Sean Connolly, Stony Brook, NY (US);
Mark Duron, East Patchogue, NY (US);
Symbol Technologies, Inc., Holtsville, NY (US);
Abstract
A method and device enables reading radio frequency identification (RFID) tags in a localized area. The method according to one embodiment includes commencing transmission of an interference signal from a reader device (step). A command signal is then transmitted from the device while the interference signal is still being transmitted (step). The command signal instructs non-target RFID tags to not respond to an interrogation signal, and the target RFID tags do not process the command signal because the command signal is blocked by the interference signal. Transmission of the interference signal from the device is then stopped (step). The interrogation signal is then transmitted from the device after the interference signal is no longer being transmitted (step). Finally, a response signal is received at the device from the target RFID tags that enables the device to read only the target RFID tags (step).