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:
Dec. 08, 2020
Filed:
Dec. 22, 2017
Facebook Technologies, Llc, Menlo Park, CA (US);
David Maurice Moore, Redmond, WA (US);
Evan Paul Gander, Seattle, WA (US);
Jason Victor Tsai, Bellevue, WA (US);
Zhaoming Zhu, Redmond, WA (US);
Richard Andrew Newcombe, Seattle, WA (US);
Renzo De Nardi, Seattle, WA (US);
Nicholas Daniel Trail, Bothell, WA (US);
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
Systems described herein use outside-in positional tracking. A base station emits one or more rotational light beams to illuminate a local area. The rotational light beams rotate around a rotation axis and are used for positional tracking one or more objects in the local area. The one or more rotational light beams retroreflect from the one or more objects in the local area. The one or more objects include retroreflectors that retroreflect light beams incident on them. The base station detects the retroreflected light beams. The base station generates illumination data in response to the detected light beams. A system analyzes the illumination to determine an orientation and/or a location of an object.