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:
Oct. 26, 2010
Filed:
Jun. 04, 2004
Tetsujiro Kondo, Tokyo, JP;
Takashi Nakanishi, Tokyo, JP;
Daisuke Kikuchi, Tokyo, JP;
Shizuo Chikaoka, Tokyo, JP;
Takeshi Miyai, Tokyo, JP;
Yoshiaki Nakamura, Tokyo, JP;
Tsugihiko Haga, Kanagawa, JP;
Tetsujiro Kondo, Tokyo, JP;
Takashi Nakanishi, Tokyo, JP;
Daisuke Kikuchi, Tokyo, JP;
Shizuo Chikaoka, Tokyo, JP;
Takeshi Miyai, Tokyo, JP;
Yoshiaki Nakamura, Tokyo, JP;
Tsugihiko Haga, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
This invention relates to an apparatus for processing an information signal etc. that, when converting, for example, SD signal into HD signal, enables well to be obtained pixel data of HD signal no matter whether the dynamic range DR is large or small. DR in a class tap is detected. If DR≧Th, items of pixel data y−ycalculated by using item of coefficient data Wcorresponding to a class code Ca are estimated as items of pixel data of HD signal. If DR<Th, an addition mean value of items of pixel data y−y, y−ycalculated by using items of coefficient data W, Wcorresponding to class codes Ca, Cb is estimated as item of the pixel data of HD signal. The items of coefficient data Wi-a, Wi-b are obtained by learning between a student signal corresponding to the SD signal and a teacher signal corresponding to the HD signal by using a portion of the DR having a value thereof that is not less than the threshold value Th. The code Ca is converted into the code Cb so that the addition mean value can most approach a true value of the pixel data of the HD signal.