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:
Jan. 21, 1986
Filed:
Feb. 14, 1983
Applicant:
Inventors:
Craig E Goldman, Natick, MA (US);
Douglas A Voorhies, Framingham, MA (US);
Assignee:
Prime Computer, Inc., Natick, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340709 ; 340750 ; 340734 ;
Abstract
Image display equipment has a memory element for storing a selected combinatorial function of a cursor pattern and image field existing at an addressed cursor position, and has a controllable selector for displaying, at the cursor field, either the image field or the combined cursor field and image pattern. A single display memory can store the image field, the cursor pattern, and the selected combination of cursor pattern and image field. Selection logic addresses the stored combination pattern in lieu of the image field to provide the desired cursor display at the addressed cursor position.