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:
Feb. 10, 1987
Filed:
Sep. 17, 1984
Applicant:
Inventor:
Kenneth E Bruce, Nashua, NH (US);
Assignee:
Honeywell Information Systems Inc., Waltham, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09G / ;
U.S. Cl.
CPC ...
340750 ; 340723 ; 340747 ; 340748 ; 340799 ;
Abstract
The invention pertains to a computer display system for displaying text and graphics on a scan line basis wherein a scan line windowing apparatus for selectively blanking the graphics display is provided. A bit map memory, in addition to storing information to be displayed on a CRT, further stores a bit for each scan line which is utilized to control the enabling or disabling of a portion of the information in the bit map memory which is to be displayed on the CRT.