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1. 发明申请

US20150012753A1 TERMINAL DEVICE, VERIFICATION DEVICE, KEY DISTRIBUTION DEVICE, CONTENT PLAYBACK METHOD, KEY DISTRIBUTION METHOD, AND COMPUTER PROGRAM 有权
标题翻译：终端设备，验证设备，密钥分发设备，内容回放方法，密钥分发方法和计算机程序
公开(公告)号：US20150012753A1
公开(公告)日：2015-01-08
申请号：US14494651
申请日：2014-09-24
申请人： Panasonic Corporation
发明人： Takahiro YAMAGUCHI , Yuichi FUTA , Toshihisa NAKANO
IPC分类号： H04L29/06 , H04L9/32
CPC分类号： H04L63/0876 , G06F21/6209 , H04L9/083 , H04L9/0891 , H04L9/3247 , H04L9/3263 , H04L9/3273 , H04L2209/60
摘要： The terminal device 600 comprises: a read unit configured to read encrypted content and a content signature from a regular region of a recording medium device 700, and to read a converted title key from an authorized region of the recording medium device 700, the converted title key having been converted from a title key with use of a content signature generated by an authorized signature device 500; a title key reconstruction unit configured to generate a reconstructed title key by reversely converting the converted title key with use of the content signature read by the read unit; and a playback unit configured to decrypt the encrypted content with use of the reconstructed title key to obtain decrypted content, and to play back the decrypted content.
摘要翻译：终端装置600包括：读取单元，被配置为从记录介质装置700的规则区域读取加密内容和内容签名，并且从记录介质装置700的授权区域读取转换的标题密钥，转换的标题密钥已经使用由授权签名装置500生成的内容签名从标题密钥转换; 标题密钥重构单元，被配置为通过使用由所述读取单元读取的内容签名来逆转换转换的标题密钥来生成重构的标题密钥; 以及重放单元，被配置为使用重构的标题密钥对加密的内容进行解密以获得解密的内容，并且回放解密的内容。

2. 发明申请

US20130236018A1 DATA PROTECTION SYSTEM THAT PROTECTS DATA BY ENCRYPTING THE DATA 审中-公开
标题翻译：数据保护系统，通过加密数据来保护数据
公开(公告)号：US20130236018A1
公开(公告)日：2013-09-12
申请号：US13858306
申请日：2013-04-08
申请人： PANASONIC CORPORATION
发明人： Toshihisa NAKANO , Motoji OHMORI , Natsume MATSUZAKI , Makoto TATEBAYASHI
IPC分类号： H04L9/08
CPC分类号： H04L9/08 , G06F21/10 , G06F2221/2107 , G11B20/00086 , G11B20/0021 , H04L9/0822 , H04L9/0836 , H04L9/0891 , H04L63/064 , H04L63/065 , H04L2209/60 , H04L2209/80 , H04L2463/101 , H04N5/913 , H04N7/1675 , H04N21/2347 , H04N21/26606 , H04N21/4325 , H04N21/4405 , H04N2005/91364
摘要： A data protection system includes terminals, and an encryption device that encrypts distribution data distributed to each terminal. Each terminal corresponds with one node on a lowest level of a tree structure having hierarchies. A data protection system excludes nodes on the lowest level, determines a plurality of combination patterns that include combinations of two or more of all four nodes that are reached one level below the node, decides an individual decryption key for each determined combination pattern, and decides an individual decryption key for each node on the lowest level. The data protection system prescribes nodes that are reached from the node on the lowest level and a terminal to the node on the highest level that is an invalid node. For invalid nodes, the data protection system designates an encryption key that corresponds to the decryption key determined in correspondence with the combination pattern that combines all nodes, excluding invalid nodes, and encrypts distribution data that uses each of the designated encryption keys.
摘要翻译：数据保护系统包括终端和加密分发给每个终端的分发数据的加密装置。每个终端对应于具有层次结构的树结构的最低级别上的一个节点。数据保护系统排除最低级别的节点，确定包括达到节点下方一级的所有四个节点中的两个或更多个的组合的多个组合模式，为每个确定的组合模式确定个体解密密钥，并且决定最低级别上每个节点的个人解密密钥。数据保护系统规定从最低级别的节点到达的节点，以及作为无效节点的最高级别的节点的终端。对于无效节点，数据保护系统指定对应于与组合除了无效节点之外的所有节点的组合模式确定的解密密钥相对应的加密密钥，并加密使用每个指定的加密密钥的分发数据。

3. 发明申请

US20140095684A1 TERMINAL CONTROL METHOD, TERMINAL CONTROL SYSTEM, AND SERVER DEVICE 有权
标题翻译：终端控制方法，终端控制系统和服务器设备
公开(公告)号：US20140095684A1
公开(公告)日：2014-04-03
申请号：US14039971
申请日：2013-09-27
申请人： Panasonic Corporation
发明人： Masao NONAKA , Toshihisa NAKANO , Ryota MIYAZAKI , Motoji OHMORI , Masayuki KOZUKA
IPC分类号： H04L29/08
CPC分类号： H04L67/16 , H04L12/2818 , H04L12/2825 , H04L2012/2849 , H04L2012/285
摘要： In a system that centrally manages a terminal device group composed of a plurality of terminal devices in a home, a method allows for: determining an instruction to be transmitted to one of the terminal devices according to an operation status acquired from a different one of the terminal devices; specifying, from among the terminal devices, a terminal device as a transmission destination of the instruction, with use of pieces of connection source information specifying the respective terminal devices in a network, and acquisition times of the pieces of connection source information; and transmitting the instruction to the specified terminal device. Upon receiving the instruction, the specified terminal device performs an operation based on the received instruction. The operation is in coordination with the operation status acquired from the different terminal device.
摘要翻译：在家庭中集中管理由多个终端设备组成的终端设备组的系统中，一种方法允许：根据从不同的一个终端设备获取的操作状态，确定要发送到终端设备之一的指令终端设备; 从所述终端装置中，使用指定网络中的各个终端装置的连接源信息以及所述连接源信息的获取时间，指定作为所述指示的发送目的地的终端装置; 并将指令发送到指定的终端设备。指定的终端装置在接收到指示后，根据接收到的指令进行动作。该操作与从不同终端设备获取的操作状态协调。

4. 发明申请

US20150178480A1 RECORDING MEDIUM DEVICE, TERMINAL DEVICE, DISTRIBUTION DEVICE, CONTROL METHOD, AND PROGRAM RECORDING MEDIUM 审中-公开
标题翻译：记录介质设备，终端设备，分发设备，控制方法和程序记录介质
公开(公告)号：US20150178480A1
公开(公告)日：2015-06-25
申请号：US14640434
申请日：2015-03-06
申请人： Panasonic Corporation
发明人： Takahiro YAMAGUCHI , Yuichi FUTA , Toshihisa NAKANO
IPC分类号： G06F21/10 , H04L9/32
CPC分类号： G06F21/10 , G06F2221/0724 , G11B20/00181 , G11B20/00195 , G11B20/00224 , G11B20/00427 , G11B20/00847 , G11B2220/2541 , H04L9/32 , H04L9/3268 , H04L2209/60 , H04N21/2585 , H04N21/4334 , H04N21/8355
摘要： When the terminal device attempts to use a special content, which has an attribute including information distinguishing the special content from regular contents and which is stored in the recording medium device, the recording medium device refers to the revocation information indicating terminal devices restricted from using the special content. When the recording medium device determines the terminal device as a terminal device to be restricted from using the special content based on the terminal identifying information of the terminal device, the usage information output unit of the recording medium device does not transmit the necessary information for using the special content to the terminal device.
摘要翻译：当终端设备尝试使用具有包括区分特定内容的信息与常规内容并且存储在记录介质设备中的特性的特定内容时，记录介质设备参考指示终止设备的撤销信息，特别内容。当记录介质设备基于终端设备的终端识别信息将终端设备确定为要被限制的终端设备使用特殊内容时，记录介质设备的使用信息输出单元不发送必要的使用信息特殊内容给终端设备。

5. 发明申请

US20140129842A1 UNAUTHORIZED CONTENTS DETECTION SYSTEM 有权
标题翻译：未知的内容检测系统
公开(公告)号：US20140129842A1
公开(公告)日：2014-05-08
申请号：US14155712
申请日：2014-01-15
申请人： Panasonic Corporation
发明人： Masao NONAKA , Yuichi FUTA , Toshihisa NAKANO , Kaoru YOKOTA , Motoji OHMORI , Masaya MIYAZAKI , Masaya YAMAMOTO , Kaoru MURASE , Senichi ONODA
IPC分类号： H04L9/32
CPC分类号： H04L9/3247 , G06F21/10 , G06F21/6209 , G06F21/64 , G06F2221/0773 , H04L9/3236 , H04L2209/60 , Y10S707/99942
摘要： A data processing device for playing back a digital work reduces the processing load involved in verification by using only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on a DVD. In addition, the data processing device improves the accuracy of detecting unauthorized contents by randomly selecting a predetermined number of encrypted units every time the verification is performed.
摘要翻译：用于再现数字作品的数据处理装置通过仅使用构成加密内容的多个加密单元随机选择的预定数量的加密单元来减少验证中所涉及的处理负担。此外，数据处理装置通过在每次执行验证时随机选择预定数量的加密单元来提高检测未授权内容的准确性。

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