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:
Sep. 22, 2009
Filed:
Sep. 04, 2007
Christopher J. Diorio, Shoreline, WA (US);
Thomas G. Anderl, Seattle, WA (US);
Scott A. Cooper, Seattle, WA (US);
Aanand Esterberg, Seattle, WA (US);
Christopher J. Diorio, Shoreline, WA (US);
Thomas G. Anderl, Seattle, WA (US);
Scott A. Cooper, Seattle, WA (US);
Aanand Esterberg, Seattle, WA (US);
Impinj, Inc., Seattle, WA (US);
Abstract
RFID readers, systems, and methods are provided for overcoming the effects of RF interference. While a system is communicating in a channel, RF interference is monitored. If it is low, then hopping to another channel is performed according to an ordinary decision. But if interference is high, then hopping out to another channel can be earlier than would be dictated by the ordinary decision under the same circumstances. The earlier hopping out can result in diminishing communication in channels with a lot of RF interference.