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. 17, 2007
Filed:
Feb. 07, 2006
Tetsujiro Kondo, Tokyo, JP;
Toshihiko Hamamatsu, Saitama, JP;
Hideo Nakaya, Kanagawa, JP;
Takeharu Nishikata, Chiba, JP;
Hideki Ohtsuka, Kanagawa, JP;
Takeshi Kunihiro, Chiba, JP;
Takafumi Morifuji, Tokyo, JP;
Masashi Uchida, Tokyo, JP;
Tetsujiro Kondo, Tokyo, JP;
Toshihiko Hamamatsu, Saitama, JP;
Hideo Nakaya, Kanagawa, JP;
Takeharu Nishikata, Chiba, JP;
Hideki Ohtsuka, Kanagawa, JP;
Takeshi Kunihiro, Chiba, JP;
Takafumi Morifuji, Tokyo, JP;
Masashi Uchida, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit () and to a class tap extraction circuit (). The prediction tap extraction circuit () and the class tap extraction circuit () extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit () effects classification based on the class taps. A coefficient table storage unit () sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (), which sum of products circuit () then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.