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:
Nov. 03, 1998
Filed:
Aug. 22, 1996
Yasutoshi Hirano, Ikeda, JP;
Takashi Michiyoshi, Toyonaka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
In a color video signal processing method, color difference component signals are converted into RGB component signals by a digital to digital conversion so as to reduce a size of a processing unit used for the conversion. An analog composite signal is converted into analog color difference component signals. The analog color difference component signals are then converted into digital color difference component signals. The digital color difference component signals are converted into digital RGB component signals by a digital to digital conversion based on an approximation method. Finally, the digital RGB component signals are converted into analog RGB component signals. The digital-to-digital conversion may be performed in accordance with equations in which each factor is a fractional number having a denominator of a power of 2.