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:
Apr. 10, 2018
Filed:
Dec. 13, 2013
Impinj, Inc., Seattle, WA (US);
Matthew Robshaw, Seattle, WA (US);
Harley Heinrich, Snohomish, WA (US);
Yael Maguire, Boston, MA (US);
Theron Stanford, Seattle, WA (US);
Christopher J. Diorio, Shoreline, WA (US);
Scott A. Cooper, Seattle, WA (US);
IMPINJ, INC., Seattle, WA (US);
Abstract
An authentication method includes RFID tags authenticating RFID readers. A tag sends a tag identifier and a reader challenge to a reader in response to one or more commands from the reader. The reader then either derives a response to the reader challenge itself or has a verification authority derive the response. The response may be derived from parameter(s) in the reader challenge, and may be derived using a cryptographic key. The reader then sends the response to the tag along with another command. The tag verifies the response before executing instruction(s) included in the command.