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.:

US 6891540 B1

PDF
Full Text
Expired
Date of Patent:
May. 10, 2005

Filed:

Oct. 17, 2002
Applicants:

Ming-hao Liao, Taipei, TW;

Yung-feng Chiu, Miaoli, TW;

Chung-yen LU, Taipei, TW;

Inventors:

Ming-Hao Liao, Taipei, TW;

Yung-Feng Chiu, Miaoli, TW;

Chung-Yen Lu, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G005/02 ; G06T011/20 ;
U.S. Cl.
CPC ...
Abstract

An apparatus for line drawing using a plurality of pixels to display a line, including a first parameter generating module, a second parameter generating module, a storage module, a retrieving module, and a calculating module. In this case, the first parameter generating module generates a first parameter according to a slope of the line. The second parameter generating module generates a second parameter according to the distance between one of the pixels and the line in axial directions. The storage module stores an index table, which records at least a blending factor and the correlations between the first parameter, second parameter, and blending factor. Therefore, the retrieving module searches for the blending factor from the index table according to the first and second parameter. Finally, the calculating module determines the color of this pixel according to the blending factor.


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