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:
Aug. 15, 1978
Filed:
Jun. 23, 1977
Applicant:
Inventors:
Steven T Mayer, Auburn, CA (US);
Ronald E Milner, Grass Valley, CA (US);
Assignee:
Atari, Inc., Sunnyvale, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
3403 / ; 273 / ; 273D / ;
Abstract
Apparatus for continuous variation of object size on a raster type video screen in a television game. The input of a voltage controlled oscillator is varied by a game controller. The output of the oscillator drives horizontal and vertical counters at rates corresponding to the object size. These counters provide respectively horizontal and vertical addresses to a picture generator read only memory. The faster the counters are incremented the smaller the object; and with regard to the vertical address, horizontal lines of the picture are actually skipped in order to reduce the size of the object.