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:
Apr. 08, 2003
Filed:
Feb. 11, 2002
Shozo Into, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
It is an object of the present invention to provide a color conversion apparatus in which an output result of a color converting circuit at the succeeding stage for color-converting a specific color can be prevented from being affected by an output result of a color converting circuit at the preceding stage for color-converting a whole image. Since a first color converting circuit ( ) color-converts a whole image of image data in a first color-conversion fashion. A second color converting circuit ( ) color-converts only the area of such color in a second color-conversion fashion by adding a correction signal which results from multiplying a key signal ( ) indicative of an area of specific color to image data in which the whole image is color-converted in a first color-conversion fashion and a key signal generating circuit ( ) generates the key signal ( ) from the image data supplied to the first color converting circuit the output result of the second color converting circuit ( ) at the succeeding stage for color-converting the specific color can be prevented from being affected by the output result from the first color converting circuit ( ) at the succeeding stage for color-converting the whole image.