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    • 5. 发明专利
    • Transmitter, content reproducing apparatus, and content and license distribution system
    • 发射机,内容再现装置,内容和许可证分发系统
    • JP2005244946A
    • 2005-09-08
    • JP2005007805
    • 2005-01-14
    • Matsushita Electric Ind Co Ltd松下電器産業株式会社
    • ONODA SENICHIOKAMOTO RYUICHIMIURA YASUSHI
    • G06F12/14G06F21/62G06Q30/06G06Q50/00H04N7/16H04N7/167H04N7/173H04N21/266H04N21/4623H04N21/472G06F17/60
    • PROBLEM TO BE SOLVED: To provide a license distribution method by which access concentration to a server can be averted. SOLUTION: A let-off device 101 is equipped with a license data input section 202 for receiving the input of license data for licensing reproduction of accumulated type contents linked to broadcasting contents, a mutiplexer 204 for mutiplexing the input license data to the broadcasting contents to produce multiplexed data, and an output section 206 for transmitting the multiplexed data produced to a content reproducing apparatus 102 by means of broadcasting. The content-reproducing apparatus 102 is equipped with a receiver 301 for receiving the multiplexed data, a multiplexer 302 for extracting the license data and the broadcasting content from the multiplexed data received, and a content-reproducing section 307 for reproducing the broadcasting content extracted to reproduce the obtained accumulated type contents, when the accumulated type contents are acquired whose reproduction permission is given by the license data. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供可以避免对服务器的访问集中的许可证分发方法。 发送装置101配备有许可证数据输入部分202,用于接收许可证数据的输入,用于授权与广播内容相关联的累积类型内容的再现;多路复用器204,用于将输入的许可证数据多路复用到 广播内容以产生多路复用数据;以及输出部分206,用于通过广播发送产生到内容再现装置102的复用数据。 内容再现装置102配备有用于接收多路复用数据的接收机301,用于从接收的复用数据中提取许可数据和广播内容的多路复用器302和用于再现提取到的广播内容的内容再现部分307 当获取由许可证数据给出再现许可的累积类型内容时,再现所获得的累积类型内容。 版权所有(C)2005,JPO&NCIPI
    • 8. 发明专利
    • Recording medium, reproducing apparatus, and contents reproducing method
    • 记录介质,再现设备和内容再现方法
    • JP2006203275A
    • 2006-08-03
    • JP2005009735
    • 2005-01-18
    • Matsushita Electric Ind Co Ltd松下電器産業株式会社
    • ONODA SENICHIYAMAMOTO MASAYA
    • H04L9/08
    • PROBLEM TO BE SOLVED: To solve a problem that an illegitimate reproducing apparatus cannot be specified on the basis of a leaked intermediate key when the intermediate key is revealed and illegitimately distributed because the intermediate key acquired from any reproducing apparatus is the same and the use of contents distributed after the intermediate key is revealed by an illegitimate reproducing apparatus cannot be prevented.
      SOLUTION: The intermediate key capable of being acquired by each reproducing apparatus is revised, and even when the intermediate key is illegitimately distributed, the illegitimate reproducing apparatus can be specified on the basis of the leaked intermediate key.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:为了解决当由于从任何再现设备获取的中间密钥相同时中断密钥被显示和非法分发时,基于泄漏的中间密钥不能指定非法重放设备的问题, 无法防止非法重放装置显示中间密钥分发的内容的使用。 解决方案:能够修复每个再现装置获取的中间密钥,并且即使中间密钥被非法分发,也可以基于泄漏的中间密钥来指定非法再现设备。 版权所有(C)2006,JPO&NCIPI
    • 9. 发明专利
    • Application management device and management method
    • 应用管理设备和管理方法
    • JP2005353043A
    • 2005-12-22
    • JP2005130469
    • 2005-04-27
    • Matsushita Electric Ind Co Ltd松下電器産業株式会社
    • ONODA SENICHIYAMAMOTO MASAYAAZUMA AKIOOKAMOTO RYUICHI
    • G06F9/445G06F12/00
    • PROBLEM TO BE SOLVED: To provide an application management device capable of deciding necessity of deleting an application with a small load. SOLUTION: The application management device 54 comprises a DRM application DB520 for storing a plurality of applications while associating them with specifying information (DRM application ID) for specifying corresponding relations between a license and an application for processing the license, and a DRM application deletion determination part 527 for determining necessity of deleting an application stored in the DRM application DB520 based on the specifying information. Specifically, the application management device 54 further comprises a license DB521 for storing the license while associating it with the specifying information, and the DRM application deletion determination part 527 determines that the application in which the license associated by the specifying information is not stored in the license DB521 is to be deleted. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供能够以小负载决定删除应用的必要性的应用管理装置。 应用程序管理装置54包括用于存储多个应用程序的DRM应用程序DB520,同时将它们与用于指定许可证和用于处理许可证的应用程序之间的对应关系的指定信息(DRM应用程序ID)相关联,以及DRM 应用删除确定部分527,用于基于指定信息确定删除存储在DRM应用DB520中的应用的必要性。 具体地说,应用程序管理装置54还包括许可证DB521,用于在将许可证DB521与指定信息相关联的同时存储许可证,并且DRM应用删除确定部件527确定与指定信息相关联的许可证未被存储在 许可证DB521将被删除。 版权所有(C)2006,JPO&NCIPI