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:
Apr. 18, 2017
Filed:
Jun. 30, 2015
Applicant:
Castar, Inc., Palo Alto, CA (US);
Inventors:
Jeri J. Ellsworth, San Jose, CA (US);
Ken Clements, Los Gatos, CA (US);
Assignee:
CastAR, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 7/00 (2017.01); G06T 11/60 (2006.01); G02B 27/01 (2006.01); G06T 7/73 (2017.01);
U.S. Cl.
CPC ...
G06T 7/0042 (2013.01); G02B 27/017 (2013.01); G06T 7/73 (2017.01); G06T 11/60 (2013.01); G02B 2027/0138 (2013.01); G02B 2027/0178 (2013.01); G02B 2027/0187 (2013.01); G06T 2207/30208 (2013.01); G06T 2207/30244 (2013.01);
Abstract
A system of active fiducial markers for pose calculation of head mounted displays is described in which information is exchanged among said markers for the purpose of synchronization. Fiducial patterns are made more easily identifiable by selective duty cycles of sub groups of synchronized emitters and means is described to propagate pose information among markers.