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. 25, 1986
Filed:
Jun. 03, 1983
Applicant:
Inventor:
David W DiOrio, Easton, PA (US);
Assignee:
Commodore Business Machines, West Chester, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63F / ;
U.S. Cl.
CPC ...
273 / ; 273D / ; 3401462 ; 340723 ; 358 22 ; 364521 ;
Abstract
A comparator circuit incorporated into a video game device and operated responsive to first and second non-overlapping clock pulses can be used to compare background information location to SPRITE information location for both raster line (vertical) and column (horizontal) coordinates to provide a high speed interrupt signal to a central processor unit (CPU) triggering a processing of SPRITE or other features' display instead of a processing of background display, the comparator being implemented in less silicon area and having a lower power usage than other types of circuit implementations.