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. 29, 2012
Filed:
Aug. 31, 2007
Farid U. Dowla, Castro Valley, CA (US);
Faranak Nekoogar, San Ramon, CA (US);
David M. Benzel, Livermore, CA (US);
Gregory E. Dallum, Livermore, CA (US);
Alex Spiridon, Palo Alto, CA (US);
Farid U. Dowla, Castro Valley, CA (US);
Faranak Nekoogar, San Ramon, CA (US);
David M. Benzel, Livermore, CA (US);
Gregory E. Dallum, Livermore, CA (US);
Alex Spiridon, Palo Alto, CA (US);
Lawrence Livermore National Security, LLC, Livermore, CA (US);
Abstract
A new Radio Frequency Identification (RFID), tracking, powering apparatus/system and method using coded Ultra-wideband (UWB) signaling is introduced. The proposed hardware and techniques disclosed herein utilize a plurality of passive UWB transponders in a field of an RFID-radar system. The radar system itself enables multiple passive tags to be remotely powered (activated) at about the same time frame via predetermined frequency UWB pulsed formats. Once such tags are in an activated state, an UWB radar transmits specific 'interrogating codes' to put predetermined tags in an awakened status. Such predetermined tags can then communicate by a unique 'response code' so as to be detected by an UWB system using radar methods.