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:
Mar. 10, 1998
Filed:
Jul. 11, 1995
Applicant:
Inventors:
Hiroyasu Negishi, Kanagawa, JP;
Masatoshi Kameyama, Kanagawa, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
345430 ; 345441 ;
Abstract
This invention provides a circuit, which performs a high quality mapping operation by giving a perspective transformation effect to a mapping data of a rendering polygon. The circuit has a mechanism to divide edges and mapping data of a figure in a display and calculate a virtual mapping address, a pixel generator to generate a pixel data for pixels inside of the displayed figure and a virtual mapping address of the pixel data, a virtual address converter to convert the virtual mapping address to a mapping address, and a mapping memory to store the mapping data.