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. 02, 2003
Filed:
Mar. 06, 2000
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka-Fu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/00 ;
U.S. Cl.
CPC ...
G09G 5/00 ;
Abstract
A coordinate light source calculating unit calculates 3D coordinates for points forming one or more objects and performs clipping. A rendering unit performs rendering and outputs the formed CG image to a frame buffer . The coordinate light source calculating unit calculates 3D coordinates forming a video display surface. A perspective projection unit calculates 2D coordinates for each point forming the video display surface. An image decoder decodes a video frame, and an image transform unit transforms this image and outputs it to the frame buffer , enabling the video frame to be pasted onto the CG image.