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. 09, 2009
Filed:
Apr. 26, 2006
Tooru Kamibayashi, Kanagawa, JP;
Taku Kato, Kanagawa, JP;
Hiroshi Isozaki, Kanagawa, JP;
Tatsuyuki Matsushita, Kanagawa, JP;
Atsushi Ishihara, Kanagawa, JP;
Yutaka Kashihara, Kanagawa, JP;
Yuji Nagai, Kanagawa, JP;
Kosuke Haruki, Tokyo, JP;
Yoshikata Tobita, Tokyo, JP;
Seiichi Nakamura, Tokyo, JP;
Masahiko Mawatari, Kanagawa, JP;
Tooru Kamibayashi, Kanagawa, JP;
Taku Kato, Kanagawa, JP;
Hiroshi Isozaki, Kanagawa, JP;
Tatsuyuki Matsushita, Kanagawa, JP;
Atsushi Ishihara, Kanagawa, JP;
Yutaka Kashihara, Kanagawa, JP;
Yuji Nagai, Kanagawa, JP;
Kosuke Haruki, Tokyo, JP;
Yoshikata Tobita, Tokyo, JP;
Seiichi Nakamura, Tokyo, JP;
Masahiko Mawatari, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A content playback apparatus includes an SKF selecting unit that selects one segment key file from plural segment key files recorded in a DVD media at a time of playback of a content of the sequence key section, a data selecting unit that selects each content corresponding to a segment number of each key entry registered in the selected segment key file, a moving picture data decrypting unit that decrypts the selected moving picture data by a segment key corresponding to the segment number, and a decoder that plays back the decrypted moving picture data.