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:
Jan. 26, 2021
Filed:
Jan. 15, 2018
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Zhanping Xu, Sunnyvale, CA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
A method of determining distances to features in a scene comprising transmitting structured light modulated at a modulation frequency to illuminate the scene with a structured illumination pattern and for each combination of a sampling phase offset ψand a perturbation phase shift λ, modulating sensitivity of a photo sensor at the frequency of modulation of the transmitted light, but phase shifted relative to phase of the transmitted light by a phase θ=(ψ+λ), and for each value of θmodulo 360°, registering light reflected by features in the scene during a different exposure and using the registered light to provide a range image of the scene.