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:
Feb. 21, 2012
Filed:
May. 16, 2007
Applicants:
Ali Aiouaz, Mission Viejo, CA (US);
Paul Dietrich, Seattle, WA (US);
David Ord, Aliso Viejo, CA (US);
Omar Khwaja, Irvine, CA (US);
Inventors:
Ali Aiouaz, Mission Viejo, CA (US);
Paul Dietrich, Seattle, WA (US);
David Ord, Aliso Viejo, CA (US);
Omar Khwaja, Irvine, CA (US);
Assignee:
Impinj, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 13/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
RFID readers, reader systems, and methods are provided that utilize smart antenna switching. A first signal is transmitted from a first antenna estimating presence of tags within the antennas field of view. If fewer than a predefined number of tags are estimated, the system switches to a second antenna. Otherwise, the tags found in the field of view of the first antenna are inventoried before switching to the second antenna.