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:
Jul. 06, 1993
Filed:
Sep. 21, 1990
Applicant:
Inventors:
Leonid Shapiro, Lakeside, CA (US);
Randall S Farwell, San Diego, CA (US);
Robert Shaw, Escondido, CA (US);
Assignee:
Proxima Corporation, San Diego, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340703 ; 358 / ;
Abstract
A high speed color display system including a modulation circuit electrically coupled between a high speed display device, such as an active matrix liquid crystal display panel, and a video output signal source, such as a video output card of a personal computer. The modulation circuit including both a scaling circuit for eliminating or substantially reducing contouring caused by quantizing errors associated with approximations of digital pictures and a duty cycle scaling circuit for eliminating or substantially reducing repetitive beats in a displayed image.