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:
Sep. 26, 2006
Filed:
Mar. 01, 2000
Kenichi Seino, Miyagi-ken, JP;
Mitsuo Kamiko, Miyagi-ken, JP;
Tomoyasu Katsuyama, Kanagawa-ken, JP;
Yoshihiro Date, Kanagawa-ken, JP;
Naoki Hagiwara, Kanagawa-ken, JP;
Kenichi Seino, Miyagi-ken, JP;
Mitsuo Kamiko, Miyagi-ken, JP;
Tomoyasu Katsuyama, Kanagawa-ken, JP;
Yoshihiro Date, Kanagawa-ken, JP;
Naoki Hagiwara, Kanagawa-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A video signal processing circuit, which performs contour adjustment by means of digital signal processing, is applicable to a viewfinder apparatus for a television camera and an image monitor apparatus, which can be operated both in an NTSC/PAL system and an HDTV system. The video signal processing circuit includes a contour-adjusting circuit for performing contour adjustment by peaking R, G, and B signals or by peaking a Y signal in an HDTV system and for outputting at least one adjusted signal; an inverse matrix transforming circuit for separating, by performing inverse matrix transformation, the R, G, and B signals from the adjusted Y signal, a Pr signal, and a Pb signal and for outputting the separated R, G, and B signals; and a selecting circuit for selecting, in accordance with the type of input video signals, either the R, G, and B signals in which the contour adjustment is performed or the Y signal, in which the contour adjustment is performed, and the Pr signal and the Pb signal, in which the contour adjustment is not performed.