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:
Dec. 20, 1994
Filed:
Aug. 04, 1993
Theodore S Rzeszewski, Lombard, IL (US);
Matsushita Electric Corporation of America, Secaucus, NJ (US);
Abstract
A circuit and method for shortening the transition time of sharp color transitions in color television signals. The invention includes a pattern recognition circuit and method which directly and efficiently recognizes color transitions within a predetermined range. The disclosed embodiment of the invention utilizes a filter to output its step response to the pattern recognition circuit which outputs a control signal whenever the color signal rise or fall time does not fit a predetermined pattern. When the pattern recognition circuit recognizes the step response, it directs a hold circuit to output a previous color signal for a predetermined time period before allowing the transition to proceed, thus shortening the transition time.