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:
Feb. 18, 2025
Filed:
Jun. 18, 2020
Ttp Plc., Royston, GB;
Timothy John Palmer, Royston, GB;
Michael Beck, Royston, GB;
TTP Plc, Royston, GB;
Abstract
A physically unclonable function (PUF) device comprises a plurality of optical fibres, at least some of which are arranged such that they are optically coupled. A media surround at least a portion of the optical fibres and at least one light source is configured to transmit light through one or more of the optical fibres. There is provided at least one light sensor configured to receive the transmitted light from one or more of the optical fibres and provide an output. Circuitry applies a challenge signal to at least one of the fibres using at least one light source and receives the output from the at least one light sensor, using the output to generate an identifying response to the challenge signal. The fibres are arranged such that the identifying response is unique to the device.