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.

Date of Patent:
Aug. 20, 1996

Filed:

Jan. 09, 1992
Applicant:
Inventor:

Wesley O Rupel, Bellevue, WA (US);

Assignee:

Microsoft Corporation, Redmond, WA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345150 ; 345152 ; 345149 ;
Abstract

A method and apparatus for filling an area of a computer display with a preselected color is provided. Typical computer systems software provides the capability to represent 256 different intensities of a color. However, many color displays cannot support the displaying of 256 intensity levels. The present invention provides a method and apparatus for mapping the higher number of intensity levels supported by the systems software to the lower number of intensity levels actually supported by the display. In a preferred embodiment, four picture elements (pels) of a display are logically grouped together to create a super-pel. By varying the intensity level in each pel of a super-pel, the effective number of intensity levels for a given color can be increased.


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