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:
May. 30, 2000
Filed:
Feb. 25, 1997
Jeffrey H Hoel, Los Altos, CA (US);
Adobe Systems Incorporated, San Jose, CA (US);
Abstract
A rendering device for converting input information into a bit map including a Bezier subdivision processor responsive to Bezier curve information describing a Bezier curve of an image. The Bezier subdivision processor performs at least one subdivision on the Bezier curve if the Bezier curve is greater than a desired resolution of a bit map to produce subdivided Bezier curves until all subdivided Bezier curves are at about the resolution of the bit map. The Bezier subdivision processor produces cross information from each Bezier curve which makes one crossing of a grid having the resolution of the bit map. The rendering device also includes a digital processor responsive to the cross information and operative to produce a bit map of the image from the cross information. A method for producing cross positions of Bezier curves with a grid of the present invention includes receiving a Bezier curve, sequentially subdividing the Bezier curve into a plurality of subdivided Bezier curves until each Bezier curve crosses less than a plurality of times with cell boundaries of a grid of a desired resolution, and developing the Cartesian coordinates and direction of each of the crosses of a Bezier curve with a boundary.