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:
Feb. 17, 1998
Filed:
Jan. 11, 1995
Applicant:
Inventor:
Toshiyuki Misawa, Suwa, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345113 ; 345115 ; 345118 ;
Abstract
A microcode-controlled video display controller achieves special functions such as enlargement, reduction, and rotation by performing various transformations on the display screen coordinates in order to generate addresses for accessing a display memory containing image formation data. The transformed addresses are used to fetch display data and information in an order other than the order in which the data and information were originally stored in the display memory.