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:
Jun. 25, 2013
Filed:
Jul. 19, 2010
Christopher J. Diorio, Shoreline, WA (US);
Theron Stanford, Seattle, WA (US);
Scott A. Cooper, Seattle, WA (US);
Harley K. Heinrich, Snohomish, WA (US);
Chad A. Lindhorst, Seattle, WA (US);
Kambiz Rahimi, Bellevue, WA (US);
Christopher J. Diorio, Shoreline, WA (US);
Theron Stanford, Seattle, WA (US);
Scott A. Cooper, Seattle, WA (US);
Harley K. Heinrich, Snohomish, WA (US);
Chad A. Lindhorst, Seattle, WA (US);
Kambiz Rahimi, Bellevue, WA (US);
Impinj, Inc., Seattle, WA (US);
Abstract
RFID readers transmit a Quiet Technology (QT) command to RFID tags causing at least one of the tags to transition between a private profile and a public profile. When a tag is inventoried in the private profile, it replies to the reader with contents from its private memory. When a tag is inventoried in the public profile, it replies to the reader with contents from its public memory, where the contents of the public memory may be a subset and/or modified version of the private memory contents, or entirely different altogether. The tag's profile can be switched again by another QT command from the reader, or following a loss of power at the tag. An access password and/or a short-range mechanism may be employed to allow only authorized readers to transition tag profiles or interrogate the private memory contents of tags in the public profile.