发明授权
- 专利标题: Content use device and recording medium
- 专利标题(中): 内容使用装置和记录介质
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申请号: US10590712申请日: 2005-03-01
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公开(公告)号: US07760988B2公开(公告)日: 2010-07-20
- 发明人: Masaya Yamamoto , Toshihisa Nakano , Ryuichi Okamoto , Motoji Ohmori
- 申请人: Masaya Yamamoto , Toshihisa Nakano , Ryuichi Okamoto , Motoji Ohmori
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Wenderoth, Lind & Ponack, L.L.P.
- 优先权: JP2004-066183 20040309
- 国际申请: PCT/JP2005/003829 WO 20050301
- 国际公布: WO2005/086159 WO 20050915
- 主分类号: H04N5/91
- IPC分类号: H04N5/91
摘要:
To provide a content playback device that can use content appropriately by avoiding output of content not permitted to be used according to contract information. A playback control unit 102 extracts a content name from playback control information in a playback path information table 210, and inquires of a rights management unit 108 whether content identified by the extracted content name is playable or not. If the content is judged as being unplayable, the playback control unit 102 extracts an alternative playback number from the playback control information, and extracts a content name from playback control information whose playback number matches the alternative playback number. The playback control unit 102 then instructs a decryption unit 103 and a playback unit 107 to decrypt and play back encrypted content identified by the extracted content name.
公开/授权文献
- US20070122111A1 Content use device and recording medium 公开/授权日:2007-05-31