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:
Oct. 20, 2020
Filed:
Mar. 06, 2020
Applicant:
Avid Identification Systems, Inc., Norco, CA (US);
Inventors:
Gui-Yang Lu, Upland, CA (US);
Peter Troesch, Laguna Niguel, CA (US);
Assignee:
Avid Indentification Systems, Inc., Norco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 5/00 (2006.01); H01Q 7/00 (2006.01); H01Q 1/22 (2006.01);
U.S. Cl.
CPC ...
H04B 5/0062 (2013.01); H01Q 1/2208 (2013.01); H01Q 7/00 (2013.01); H04B 5/0081 (2013.01);
Abstract
A passive radio frequency identification (RFID) reader is configured to dynamically vary the Q factor of its resonant antenna coil circuit in order to optimize its performance under different conditions. This RFID reader suitably provides optimal performance for both transponder reading and transponder writing operations, rather than being designed for optimal performance for only one operation or the other, or some fixed compromise between them.