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:
Jun. 09, 2015
Filed:
Jun. 01, 2012
Applicants:
Samuel Henry Chang, San Jose, CA (US);
Weijian Wang, Cupertino, CA (US);
Inventors:
Samuel Henry Chang, San Jose, CA (US);
Weijian Wang, Cupertino, CA (US);
Assignee:
Rawles LLC, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/31 (2006.01); G03B 3/10 (2006.01); G03B 21/14 (2006.01); G03B 15/14 (2006.01);
U.S. Cl.
CPC ...
H04N 9/31 (2013.01); G03B 15/14 (2013.01);
Abstract
Techniques are described for projecting content onto surfaces and for focusing the content. When content is projected by a projector onto a surface, the surface is observed by a camera or other sensor, and the contrast of the projected content is evaluated. The projector then varies its focal point to improve or maximize the observed contrast of the projected content.