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:
Nov. 14, 2017
Filed:
Apr. 24, 2015
Faranak Nekoogar, San Ramon, CA (US);
Matthew Reynolds, Seattle, WA (US);
Scott Lefton, Melrose, MA (US);
Farid Dowla, Castro Valley, CA (US);
Richard Twogood, San Diego, CA (US);
Faranak Nekoogar, San Ramon, CA (US);
Matthew Reynolds, Seattle, WA (US);
Scott Lefton, Melrose, MA (US);
Farid Dowla, Castro Valley, CA (US);
Richard Twogood, San Diego, CA (US);
Dirac Solutions, Inc., Pleasanton, CA (US);
Abstract
A secure passive RFID tag system comprises at least one base station and at least one passive RFID tag. The tag includes a fiber optic cable with the cable ends sealed within the tag and the middle portion forming an external loop. The loop may be secured to at least portions of an object. The tag transmits and receives an optical signal through the fiber optic cable, and the cable is configured to be damaged or broken in response to removal or tampering attempts, wherein the optical signal is significantly altered if the cable is damaged or broken. The tag transmits the optical signal in response to receiving a radio signal from the base station and compares the transmitted optical signal to the received optical signal. If the transmitted optical signal and the received optical signal are identical, the tag transmits an affirmative radio signal to the base station.