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:
Jul. 02, 1991
Filed:
Jan. 27, 1989
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A pattern data generating system has a processor for writing in a bit map memory, on the basis of input data, points of all lines to be filled or painted along a scan direction which is one direction on the bit map memory. This writing is performed such that a point on each line is written as one of the two end points of the line thereof while a point, offset by one point in the scan direction, is written as the other of the two end points of the line. The pattern data generating system also has a pattern data generating circuit for, if w (w is a positive integer) points b0, b1, . . . , b(w-2), and b(w-1) are present on one scan line, writing EXOR of data of points b0, b1, . . . , b(j-1) at positions corresponding to points b(j) (j is not less than 0 and less than w). Similar EXOR data writing is performed by the pattern data generating circuit for all the scan lines. Then, pattern data, in which the area surrounded by the closed curve is filled or painted, is obtained.