Invention Grant
- Patent Title: Information processing apparatus, information processing method and program
- Patent Title (中): 信息处理装置,信息处理方法和程序
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Application No.: US13593824Application Date: 2012-08-24
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Publication No.: US09053739B2Publication Date: 2015-06-09
- Inventor: Hiroshi Kuno , Yoshiyuki Kobayashi , Takamichi Hayashi , Katsumi Muramatsu
- Applicant: Hiroshi Kuno , Yoshiyuki Kobayashi , Takamichi Hayashi , Katsumi Muramatsu
- Applicant Address: JP Tokyo
- Assignee: SONY CORPORATION
- Current Assignee: SONY CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2011-202186 20110915
- Main IPC: G06F21/00
- IPC: G06F21/00 ; G11B20/00 ; G06F12/14 ; G11B20/10 ; H04N21/4627 ; H04N21/835 ; H04L9/08 ; H04L29/06 ; H04N5/913 ; G06F21/10

Abstract:
Disclosed herein is an information processing apparatus, including: a data processing section reproducing contents stored in a medium having a general purpose area storing encrypted contents and utilization controlling information corresponding to the contents, and a protected area including blocks to which access limitation is set and which include a title key storage block in which an encryption key for decrypting the contents and validity period information applied to the application contents of the encryption key are stored and a status storage block in which date information upon content first-time reproduction is stored; the data processing section acquires validity period information indicative of the content utilization permission period determined in response to date information upon the content first-time reproduction from the title key storage block and decides whether or not content reproduction is to be permitted based on comparison between the acquired validity period information and current date information.
Public/Granted literature
- US20130073872A1 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD AND PROGRAM Public/Granted day:2013-03-21
Information query