发明公开
EP1492265A1 CONTENT PROCESSING DEVICE, CONTENT ACCUMULATION MEDIUM, CONTENT PROCESSING METHOD, AND CONTENT PROCESSING PROGRAM
审中-公开
INHALTSVERARBEITUNGSEINRICHTUNG，INHALTSAKKUMULATIONSMEDIUM，INHALTSVERARBEITUNGSVERFAHREN UND INHALTSVERARBEITUNGSPROGRAMM
- 专利标题： CONTENT PROCESSING DEVICE, CONTENT ACCUMULATION MEDIUM, CONTENT PROCESSING METHOD, AND CONTENT PROCESSING PROGRAM
- 专利标题（中）： INHALTSVERARBEITUNGSEINRICHTUNG，INHALTSAKKUMULATIONSMEDIUM，INHALTSVERARBEITUNGSVERFAHREN UND INHALTSVERARBEITUNGSPROGRAMM
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申请号： EP03707167.7申请日： 2003-02-28
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公开(公告)号： EP1492265A1公开(公告)日： 2004-12-29
- 发明人: NAKAI, Shinichi , NOGUCHI, Naohiko , MATSUI, Shinichi , NANBA, Takaaki , INOUE, Ryuji
- 申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 申请人地址： 1006, Oaza-Kadoma Kadoma-shi, Osaka 571-8501 JP
- 专利权人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人地址： 1006, Oaza-Kadoma Kadoma-shi, Osaka 571-8501 JP
- 代理机构： Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权： JP2002097429 20020329
- 国际公布： WO2003084125 20031009
- 主分类号： H04L9/08
- IPC分类号： H04L9/08 ; G11B20/10 ; G06F12/14 ; H04M11/00
摘要：
With respect to encrypted content 104 stored in content storage medium 102, by storing information with a small data amount related to the encrypted content 104 in content storage medium 102 in association with the encrypted content 104, it is possible to distinguish between encrypted content 104 based on the related information without decoding the encrypted content 104 with a large data amount. It is thereby possible to more readily distinguish between a plurality of pieces of content stored in the content storage medium.
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