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:
Jul. 13, 1993
Filed:
Aug. 27, 1991
Applicant:
Inventor:
Trevor Davies, Henley-on-Thames, GB;
Assignee:
Questech Limited, Wokingham, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358182 ; 358183 ; 358181 ; 358 22 ;
Abstract
A video image processing system includes a decay processor provided in a signal path via which a video key signal is recirculated through a frame store. The decay processor includes a selector switch for determining which of a plurality of signal paths having different signal modifying characteristics is included in the recirculation path. The selector switch is controlled by a pseudo random sequence generator, thus providing novel visual effects.