公开(公告)号：EP1538543A4

公开(公告)日：2009-11-11

申请号：EP03795393

申请日：2003-09-11

申请人： SONY CORP

发明人： NAGAI NORIHIRO ,  KURIHARA AKIRA ,  KITAYA YOSHIMICHI ,  OSAWA YOSHITOMO ,  URANO NAOMI ,  MORITA M ,  FUKUI T

IPC分类号： G06F21/00 ,  G06F15/00 ,  G06F21/10 ,  G06F21/33 ,  G06F21/62 ,  G06Q30/06 ,  G06Q50/00 ,  G06Q50/10 ,  G11B20/00 ,  G11B20/10 ,  H04K1/00 ,  H04L9/00 ,  H04N7/167 ,  H04N21/21 ,  H04N21/2543 ,  H04N21/258 ,  H04N21/462 ,  G06F17/60

CPC分类号： G06F21/10 ,  G06F2221/2135 ,  G11B20/00086 ,  G11B20/00253 ,  G11B20/00847

摘要： To provide an information recording medium and an information processing apparatus and method in which the content usage by ensuring copyright protection can be implemented both in CD players and information processing apparatuses, for example, PCs. A license providing condition for a client can be dynamically set based on the content usage status of the client. For example, for clients having a large number of content usages, the license price is decreased, or the license can be provided free. A media ID stored in, for example, a CD, and a product ID as an identifier in, for example, a title unit or an album unit are received from the client. Based on such identification data, the content usage status data can be checked. Accordingly, the licenses can be provided under the reliable management of the content usage.

公开(公告)号：EP1538529A4

公开(公告)日：2009-05-20

申请号：EP03795392

申请日：2003-09-11

申请人： SONY CORP

发明人： NAGAI NORIHIRO ,  KURIHARA AKIRA ,  KITAYA YOSHIMICHI ,  OSAWA YOSHITOMO ,  URANO NAOMI ,  MORITA MASAO ,  FUKUI TOSHIHARU

IPC分类号： G06F12/14 ,  G11B20/00 ,  G06F21/24 ,  H04L9/08 ,  H04N5/85

CPC分类号： G11B20/1262 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00202 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00253 ,  G11B20/00492 ,  G11B20/00659 ,  G11B20/00847

摘要： There are provided an information recording medium, an information processing device, and an information processing method capable of using a content while protecting the copyright in both of a CD player and an information processing device such as a PC. The information recording medium has a first data storage region which has been subjected to the copy prevention processing and a second data storage region containing an encrypted content file including an encrypted content and encrypted key data which has been obtained by encrypting key data applied for decoding and can be decrypted only by a device having a license. Reproduction of the content recorded in the first data recording field can be performed in a reproduction device such as a CD player and decryption/reproduction of the encrypted content in the second data recording field can be performed in an information processing device such as a PC if a license can be acquired.