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:
Jun. 05, 1990
Filed:
Jun. 19, 1987
Applicant:
Inventor:
James E Easterbrook, Sutton, GB;
Assignee:
Rank Cintel Limited, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340728 ; 340744 ; 340747 ;
Abstract
A line segment display is generated as two peripheral sections joined by a middle section. The middle section is generated as a series of bars of pixels, so that no pixel falls in more than one bar, and so that a calculation to determine whether or not a pixel is within or outside the line segment is carried out only once for each pixel.