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. 04, 1989
Filed:
Mar. 11, 1987
Robert S Ballard, West Linn, OR (US);
Steven D Clark, Pittsburgh, PA (US);
Megascan Technology, Inc., Gibsonia, PA (US);
Abstract
A high-speed graphics memory providing line mode and area mode data transfer at high speeds comprises a frame buffer structure, with unique address alignment and corresponding data manipulation to provide line mode and area mode pixel data transfer of comparable time intervals. The frame buffer comprises independently addressable 16 byte-wide video memories. The 16 memories provide a 128-bit contiguous horizontal pixel sequence in the line mode, and provide a two-dimensionally contiguous array of pixels comprising 8 bits by 2 bytes when in the area mode, from which an 8.times.8 bit area is selected at any address location in the entire image bit map. The pixels included in a particular line mode or area mode data transfer are directly addressable by external equipment, such as graphics processors, to provide a high-speed graphic display system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile