公开(公告)号：US20090119781A1

公开(公告)日：2009-05-07

申请号：US12264294

申请日：2008-11-04

申请人： Masaru SUGANO ,  Koichi TAKAGI ,  Yousuke TOYOTA

发明人： Masaru SUGANO ,  Koichi TAKAGI ,  Yousuke TOYOTA

IPC分类号： G06F21/00 ,  H04N7/171

CPC分类号： G06F21/10 ,  G06Q2220/12 ,  H04N7/163 ,  H04N21/440254 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/8355

摘要： The present invention provides a digital data reproducing device having a simple configuration and being capable of protecting copyright of digital data such as video or audio. Content provider side embeds copyright management information (cumulative number of reproduction times, permissible number of reproduction times, etc.) into digital data that has been degraded by scrambling, and provides it to a content user. A reproducing device of the content user side causes copyright management information detection unit to detect the copyright management information, decreases the data degradation depending on result of the detection, and reproduces by data reproducing unit.

摘要翻译： 本发明提供一种具有简单配置并且能够保护诸如视频或音频的数字数据的版权的数字数据再现装置。 内容提供商侧将版权管理信息（累积再现次数，允许再现次数等）嵌入已经被加扰降级的数字数据中，并将其提供给内容用户。 内容用户侧的再现装置使得版权管理信息检测单元检测版权管理信息，根据检测结果减少数据劣化，并由数据再现单元再现。

公开(公告)号：US08838500B2

公开(公告)日：2014-09-16

申请号：US12264294

申请日：2008-11-04

申请人： Masaru Sugano ,  Koichi Takagi ,  Yousuke Toyota

发明人： Masaru Sugano ,  Koichi Takagi ,  Yousuke Toyota

IPC分类号： G06Q99/00 ,  G06F21/10 ,  H04N7/16 ,  H04N21/4402 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/8355

CPC分类号： G06F21/10 ,  G06Q2220/12 ,  H04N7/163 ,  H04N21/440254 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/8355

摘要： The present invention provides a digital data reproducing device having a simple configuration and being capable of protecting copyright of digital data such as video or audio. Content provider side embeds copyright management information (cumulative number of reproduction times, permissible number of reproduction times, etc.) into digital data that has been degraded by scrambling, and provides it to a content user. A reproducing device of the content user side causes copyright management information detection unit to detect the copyright management information, decreases the data degradation depending on result of the detection, and reproduces by data reproducing unit.

摘要翻译： 本发明提供一种具有简单配置并且能够保护诸如视频或音频的数字数据的版权的数字数据再现装置。 内容提供商侧将版权管理信息（累积再现次数，允许再现次数等）嵌入已经被加扰降级的数字数据中，并将其提供给内容用户。 内容用户侧的再现装置使得版权管理信息检测单元检测版权管理信息，根据检测结果减少数据劣化，并由数据再现单元再现。