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:
Jun. 19, 1979
Filed:
May. 17, 1977
Applicant:
Inventor:
James T Zahorsky, Saugerties, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
340804 ; 3401 / ; 340706 ; 340747 ; 340750 ; 340798 ;
Abstract
A display system is shown which has a source of coded information in display mapped format and includes plural devices for decoding and utilizing the information in accordance with its position in that mapped format. In the illustrated embodiment, the source includes a refresh buffer and the utilization devices include an attribute decoder and a character generator. A character row counter controls gating which causes the apparatus to treat bytes of data, having attribute format, truly as attributes or as addresses of members of an extra, graphical character set of the character generator.