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:
Oct. 01, 2019
Filed:
Sep. 20, 2017
Facebook Technologies, Llc, Menlo Park, CA (US);
Sean Jason Keller, Kirkland, WA (US);
Tristan Thomas Trutna, Seattle, WA (US);
David R. Perek, Bellevue, WA (US);
Bruce A. Cleary, III, Seattle, WA (US);
Brian Michael Scally, Seattle, WA (US);
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
A deformation sensing apparatus comprises a propagation channel, a transmitter coupled to a first end of the propagation channel, a receiver coupled to a second end of the propagation channel, and a controller. The propagation channel is deformable and the controller instructs the transmitter to transmit a signal, instructs the receiver to capture one or more measurements of the transmitted signal, and determines a bend in the propagation channel based on the one or more measurements. In one embodiment, the transmitter is a light source, the propagation channel is an optical fiber, and the receiver is a photodiode. The propagation channel is made of a material that has a variation in a refractive index responsive to applied mechanical stress. The deformation sensing apparatus may also include a polarizer positioned between the transmitter and the propagation channel and a wave plate positioned between the propagation channel and the receiver.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile