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:
Sep. 17, 2002
Filed:
Sep. 16, 1999
Method and apparatus for using a 3d graphics pipeline and 3d imaging for cost effective watermarking
Applicant:
Inventors:
Yakov Kamen, Cupertino, CA (US);
Leon Shirman, Redwood City, CA (US);
Assignee:
isurfTV, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T 1/560 ;
U.S. Cl.
CPC ...
G06T 1/560 ;
Abstract
A pixel array of an image and a computer model of a geometric surface are embedded within a piece of software. An image is rendered using the pixel array and the computer model of the geometry using a 3D graphics pipeline. A special virtual lighting source is used by the pipeline to provide virtual illumination of the image. This is done as part of a process of verifying the authenticity of the software.