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:
Mar. 28, 2017
Filed:
Jun. 11, 2015
Impinj, Inc., Seattle, WA (US);
Charles Peach, Kirkland, WA (US);
Alberto Pesavento, Seattle, WA (US);
Theron Stanford, Seattle, WA (US);
Jay Kuhn, Seattle, WA (US);
Christopher Diorio, Shoreline, WA (US);
Impinj, Inc., Seattle, WA (US);
Abstract
Data stored in nonvolatile memory on a Radio Frequency Identification (RFID) tag integrated circuit may have a 'margin' associated with how strongly the data is written to the memory. Upon receiving a wireless margin read command, the RFID IC determines whether the margin for one of more data values stored in memory exceeds a margin threshold. The IC may determine the margin by applying bias voltages or currents to the memory cells storing the data values. If the determined margin does not exceed the margin threshold, the IC may respond with an error code.