公开(公告)号：EP1406175A4

公开(公告)日：2008-07-30

申请号：EP02736211

申请日：2002-07-02

申请人： MATSUSHITA ELECTRIC IND CO LTD

发明人： SHIMOJIMA TAKASHI ,  SATO MITSUHIRO ,  NOGUCHI NAOHIKO ,  MATSUI SHINICHI ,  INOUE RYUJI ,  MURASE KAORU ,  HARADA SHUNJI

IPC分类号： G06F12/14 ,  G06F21/10 ,  G06Q30/02 ,  G06Q30/06 ,  G06Q50/00 ,  G06Q50/10 ,  G11B20/00 ,  G06F17/60 ,  G11B20/10

CPC分类号： G06Q30/02 ,  G06F21/10 ,  G06F2221/2135 ,  G11B20/00086 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00253 ,  G11B20/00557 ,  G11B20/00746 ,  G11B20/00768

摘要： When a content management apparatus (110) is a copy origin and a recording medium (120) is a copy destination, and when the copy origin holds content copy enabled count control information and a content is copied from the copy origin to the copy destination, the copy enabled count control information held by the copy origin prior to the copy processing is updated according to a predetermined rule, so as to create copy enabled count control information held by the copy origin and copy enabled count control information held by the copy destination. Copy processing at the copy origin after is performed according to the copy enabled count control information held by the copy origin and copy processing of the content recorded in the recording medium (120) after is performed according to the copy enabled count control information recorded in the recording medium (120). Thus, it is possible to realize content management which is easily be understood by a user.

公开(公告)号：EP1492265A4

公开(公告)日：2005-04-13

申请号：EP03707167

申请日：2003-02-28

申请人： MATSUSHITA ELECTRIC IND CO LTD

发明人： NAKAI SHINICHI ,  NOGUCHI NAOHIKO ,  MATSUI SHINICHI ,  NANBA TAKAAKI ,  INOUE RYUJI

IPC分类号： G06F1/00 ,  G06F12/14 ,  G06F21/10 ,  G06F21/78 ,  G11B20/00 ,  G11C16/22 ,  H04M1/725 ,  H04L9/08 ,  G11B20/10 ,  H04M11/00

CPC分类号： H04N21/6131 ,  G06F21/10 ,  G06F21/78 ,  G11B20/00086 ,  G11B20/00188 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00253 ,  G11B20/00528 ,  G11B20/00557 ,  G11B20/00695 ,  G11B20/0084 ,  G11B20/00978 ,  G11B2020/10546 ,  G11B2220/60 ,  G11B2220/61

摘要： For an encrypted content (104) stored in a content accumulation medium (102), small-data-amount information on the encrypted content (104) is stored in the content accumulation medium (102) in correlation to the encrypted content (104). Thus, without decrypting the large-data-amount encrypted content (104), it is possible to judge the encrypted content (104) according to the small-data-amount information. This enables a user to easily judge a plurality of contents stored in the content accumulation medium.