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. 21, 2005
Filed:
May. 21, 2002
Ryuhei Amano, Hirataka, JP;
Akihiro Maenaka, Kadoma, JP;
Takeshi Hachiya, Kasai, JP;
Haruhiko Murata, Ibaraki, JP;
Ryuhei Amano, Hirataka, JP;
Akihiro Maenaka, Kadoma, JP;
Takeshi Hachiya, Kasai, JP;
Haruhiko Murata, Ibaraki, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
In a contour correcting circuit that generates, on the basis of respective signals for a plurality of pixels including the pixel to be corrected at the center and arranged in a particular direction, a contour correction signal for the pixel to be corrected, there are provided contour component production means for producing a contour component for the pixel to be corrected depending on the gradient of the change among the respective signals for the plurality of pixels arranged in the particular direction; gain calculation means for calculating, on the basis of the level difference between the signal for the pixel to be corrected and the signal for the pixel adjacent in the particular direction to the pixel to be corrected, such a gain for correction that the larger the level difference is, the smaller the gain becomes; multiplication means for multiplying the contour component produced by the contour component production means by the gain for correction calculated by the gain calculation means; and addition means for adding the results of the multiplication by the multiplication means to the signal for the pixel to be corrected, to generate the contour correction signal for the pixel to be corrected.