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:
Jan. 03, 1989
Filed:
Mar. 10, 1986
Zigmantas L Budrikis, Nedlands, AU;
Arun N Netravali, Westfield, NJ (US);
American Telephone and Telegraph Company, AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
A method and apparatus that employ precomputed line profiles to draw lines on a raster scan terminal with mostly horizontal or vertical 'brush strokes' that develop the desired line profiles. The precomputed line profiles relate mostly to the slope of the drawn lines and to the position of the drawn lines between adjacent pixels on the raster scan terminal in the direction of the 'brush strokes'. A relatively small number of precomputed values is required, permitting the apparatus to operate at the low resolution of the raster scan and be driven advantageously by a look-up table. This results in a very fast operation of the system while leading to pleasing results. The method also takes into account corners and end-of-line conditions to avoid very abrupt and unnatural looking end points.