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:
Sep. 15, 1992
Filed:
Feb. 03, 1989
Takatoshi Ishii, Tokyo, JP;
ASCII Corporation, Tokyo, JP;
Abstract
A method for generating display patterns using a display memory which stores one bit of data for each pixel of a display apparatus. The stored data represents an outline of a display pattern. The stored data is consecutively read to generate dot data corresponding to the pattern being displayed. Character data corresponding to a current display pixel is also read from a display memory. Then buffer data which relates to a current scan line and the scan line directly above are read from a line buffer. Dot data is generated by performing logical computations on the current pixel data and line buffer data relating to the scan line. The dot data is then written into the line buffer for display.