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:
Feb. 16, 2010
Filed:
Sep. 29, 2008
Kosuke Haruki, Ome, JP;
Kosuke Haruki, Ome, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, there is provided a playback apparatus which plays back content including an encrypted video object and an encrypted resource file, including a memory including a file cache area, a module configured to decrypt the video object, a playback process module configured to play back the decrypted video object and to output a resource file acquisition request, a module configured to determine whether the resource file is decrypted, to decrypt the resource file, to write the decrypted resource file over the encrypted resource file, to update the management information, and to send the decrypted resource file to the playback process module, and a module configured to determine whether the resource file is decrypted, to encrypt the decrypted resource file, to write the encrypted resource file over the decrypted resource file, to update the management information, and to send the encrypted resource file to the storage.