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:
Apr. 06, 1993
Filed:
Aug. 01, 1989
William H Paxton, Los Altos Hills, CA (US);
Stephen N Schiller, Menlo Park, CA (US);
Adobe Systems Incorporated, Mountain View, CA (US);
Abstract
Method for displaying characters with improved legibility at relatively low resolution by modifying the center point fill method and displaying additional pixels as needed to maintain connectivity and avoid dropout problems. Additional pixels are turned on as needed where a black section of the character crosses the midline between two adjacent horizontal or vertical pixel centers. If the intersections of a black section of a character with a midline is entirely within one pixel which is not otherwise turned on, then that pixel is turned on; if a black section of a character crosses between two such adjacent pixel reference points in parts of both pixels, and if neither pixel is already on, the pixel having more of the black section, measured along the line between pixel centers, (or other reference points), is turned on.