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:
May. 02, 2006
Filed:
Feb. 25, 2003
Yasuyuki Kudo, Kamakura, JP;
Akihito Akai, Yokohama, JP;
Kazuo Okado, Kokubunji, JP;
Toshimitsu Matsudo, Tokyo, JP;
Atsuhiro Higa, Yokohama, JP;
Yasuyuki Kudo, Kamakura, JP;
Akihito Akai, Yokohama, JP;
Kazuo Okado, Kokubunji, JP;
Toshimitsu Matsudo, Tokyo, JP;
Atsuhiro Higa, Yokohama, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
A frame memorystores the original image data received from a higher-level devicevia an interface. Color reduction processing means receives color reduction rate data through a transfer from an upper-level deviceor manual setting means such as a switch or jumper settings. Based on this color reduction rate data, the number of colors in the gradation data of the original image is reduced, and the color count of the original image is simulated using the reduced color count. Also included are a timing generating circuitand a gradation voltage generating circuit. A gradation voltage selectorperforms a partial halting of driver operations based on the color reduction rate.