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:
Apr. 10, 1990
Filed:
Sep. 06, 1988
Arthur M Sherman, Morgan Hill, CA (US);
Peter C Yanker, Portola Valley, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A graphic display PC/interface system is described which includes three memory units: a source memory which is addressed in planar byte increments and stores display data units on a bit per plane basis; a target memory for storing display data units in a manner suitable for operation of a display unit; and a window buffer for transferring display data unit from the source memory to the target memory. The system transfers a quantity of display data unit bytes from the source memory to the target memory by accessing pairs of planar bytes, which pair of planar bytes may have a display data unit byte bridging therebetween. The method comprises selecting a first pair of planar bytes from the source memory; aligning the display data unit byte which lies totally within the selected first pair of planar bytes; selecting a second pair of planar bytes from the source memory; aligning a display data unit byte which lies totally within the second selected pair of planar bytes; consolidating the display data unit byte which bridges between the first and second pairs of selected planar bytes; aligning the consolidated display data unit byte; and transferring aligned display data unit bytes to the window buffer.