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:
Oct. 13, 1992
Filed:
Aug. 13, 1987
Peter L Doyle, Northboro, MA (US);
John P Ellenberger, Groton, MA (US);
Ellis O Jones, Andover, MA (US);
David C Carver, Medway, MA (US);
Steven D DiPirro, Holliston, MA (US);
Branko J Gerovac, Marlboro, MA (US);
William P Armstrong, Salt Lake City, UT (US);
Ellen S Gibson, Salt Lake City, UT (US);
Raymond E Shapiro, Marlboro, MA (US);
Kevin C Rutherford, West Valley City, UT (US);
William C Roach, Salt Lake City, UT (US);
Digital Equipment Corporation, Maynard, MA (US);
Abstract
A stand-alone graphics workstation including a digital computer host and a graphics processing subsystem is disclosed. Address data relating to the graphics subsystem components is mapped into the host system virtual memory. The application processes residing in the host are thereby able to communicate directly with the graphics subsystem components, as, e.g. the structure memory, without the need of a direct memory access hardware arrangement or device drivers.