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:
Jun. 04, 1996
Filed:
Feb. 08, 1995
Osamu Saionji, Ibaraki, JP;
Masami Aiura, Ibaraki, JP;
Motorola, Inc., Schaumburg, IL (US);
Abstract
A circuit that separates a luminance signal and a color signal so that dot interference in a color transition area of a reproduced image is minimized. A color video signal is transmitted to an adaptive bandpass filter via a vertical carrier color signal extraction filter. An output signal from the adaptive bandpass filter represents the color signal portion of the color video signal. The color signal is subtracted from the color video signal via a subtractor circuit to produce the luminance signal portion of the color video signal. Since the output signal of the bandpass filter is subtracted from the color video signal, the luminance signal portion of the color video signal is separated without being affected by different colors before and after a color transition point.