公开(公告)号：US07721088B2

公开(公告)日：2010-05-18

申请号：US12374869

申请日：2007-07-27

申请人： Ryuichi Okamoto ,  Akio Higashi ,  Hiroki Murakami ,  Katsumi Tokuda

发明人： Ryuichi Okamoto ,  Akio Higashi ,  Hiroki Murakami ,  Katsumi Tokuda

IPC分类号： G06F7/04 ,  G06F15/16 ,  G06F17/30 ,  H04L29/06 ,  H04L9/32 ,  H04L9/00 ,  H04N7/16 ,  H04N7/167 ,  B41K3/38 ,  H04K1/00

CPC分类号： G06F21/10 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00768 ,  G11B20/00847 ,  G11B20/00869 ,  H04L9/002 ,  H04L9/0637 ,  H04L9/0891 ,  H04L9/14 ,  H04L2209/60 ,  H04N21/2541 ,  H04N21/26606 ,  H04N21/4334 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/63345

摘要： To provide a content distribution system which can prevent use of content which has been temporarily stored after the valid period.A content distribution system (1) including a license server (101) which issues a license, a content server (102) which transmits the content, a terminal device (103) which controls use of the content based on the issued license. The terminal device (103) does not allow the use of the received encrypted content when it is judged that the encrypted content received from the content server (102) is not the content received in real time.

摘要翻译： 提供可以防止在有效期限之后临时存储的内容的使用的内容分配系统。 一种内容分发系统（1），包括发行许可证的许可证服务器（101），发送内容的内容服务器（102），基于所发行的许可证控制内容的使用的终端设备（103）。 当判定从内容服务器（102）接收到的加密内容不是实时接收的内容时，终端装置（103）不允许使用所接收的加密内容。

公开(公告)号：US20070124252A1

公开(公告)日：2007-05-31

申请号：US10588268

申请日：2005-03-10

申请人： Akio Higashi ,  Ryuichi Okamoto ,  Hiroki Murakami ,  Katsumi Tokuda

发明人： Akio Higashi ,  Ryuichi Okamoto ,  Hiroki Murakami ,  Katsumi Tokuda

IPC分类号： G06Q99/00

CPC分类号： H04N21/4627 ,  H04N7/1675 ,  H04N21/8355

摘要： A broadcast station that is a transmission device assigns an ID and a license transformation period to a license to be generated, and transmits to a terminal apparatus 102, in order to provide a digital right management system which can provide a protection for the rights of a provider while preventing an unauthorized obtainment of a license to be transmitted through a digital broadcast. The terminal apparatus 102 records a license import log including the license ID and license transformation period assigned to the license. Further, the terminal apparatus 102 controls a license obtainment in the case where the same license has been obtained by the time of obtaining the license. Furthermore, the license received by the terminal apparatus 102 is kept at least until the license transformation period expires.

摘要翻译： 作为发送装置的广播台将ID和许可证变换周期分配给要生成的许可证，并且向终端装置102发送，以提供数字版权管理系统，其可以提供对 提供商，同时防止未经授权获得通过数字广播传输的许可证。 终端装置102记录包括分配给许可证的许可证ID和许可证变换期间的许可证导入日志。 此外，终端装置102在获得许可证时获得了相同的许可证的情况下，控制许可证获取。 此外，由终端装置102接收到的许可证至少保持到许可证变换期间到期。

公开(公告)号：US20080152150A1

公开(公告)日：2008-06-26

申请号：US10567678

申请日：2005-03-25

申请人： Akio Higashi ,  Hiroki Murakami ,  Katsumi Tokuda

发明人： Akio Higashi ,  Hiroki Murakami ,  Katsumi Tokuda

IPC分类号： H04L9/08 ,  H04L9/30

CPC分类号： H04L9/3268 ,  H04L9/006 ,  H04L2209/601 ,  H04N7/162 ,  H04N21/26606 ,  H04N21/4405 ,  H04N21/4623

摘要： The present invention relates to an information distribution system including a distribution device (100) for broadcasting a content and a terminal device (200) for receiving the content broadcast from the distribution device (100). The distribution device (100) includes a PKI-related information acquisition instruction addition determination section (104) for determining whether or not PKI-related information stored therein has been updated, and a broadcast signal multiplex and transmission section (103) for, when the PKI-related information acquisition instruction addition determination section (104) determines that the PKI-related information has been updated, broadcasting a PKI-related information acquisition instruction for requesting the terminal device to acquire latest PKI-related information as being multiplexed to the content, together with information required for using the content. The terminal device (200) includes a PKI-related information acquisition determination request section (205) for, when receiving the PKI-related information acquisition instruction which is broadcast, requesting acquisition of the latest PKI-related information.

摘要翻译： 本发明涉及包括用于广播内容的分发设备（100）和用于从分发设备（100）接收广播的内容的终端设备（200）的信息分发系统。 分发装置（100）包括用于确定其中存储的PKI相关信息是否已被更新的PKI相关信息获取指令加法确定部分（104），以及广播信号多路传输部分（103），当 PKI相关信息获取指令附加判定部（104）判定PKI相关信息已被更新，广播PKI相关信息获取指示，用于请求终端装置获取与该内容多路复用的最新PKI相关信息， 以及使用内容所需的信息。 终端装置（200）包括：PKI相关信息获取判定请求部（205），用于当接收到广播的PKI相关信息获取指示时，请求获取最新的PKI相关信息。

公开(公告)号：US20070165854A1

公开(公告)日：2007-07-19

申请号：US10585988

申请日：2005-03-29

申请人： Akio Higashi ,  Hiroki Murakami ,  Katsumi Tokuda

发明人： Akio Higashi ,  Hiroki Murakami ,  Katsumi Tokuda

IPC分类号： H04N7/167

CPC分类号： G06F21/10 ,  G06F2221/0797 ,  G06F2221/2153

摘要： IC card (300) supplies an encryption key which enables content use, to a terminal apparatus (200) belonging to a domain made up of terminal apparatuses (200) which share the IC card (300). The IC card (300) includes: an extra-domain usage rule holding unit (305) which stores a rule for use of the IC card (300) in a terminal apparatus (200) which is outside of the domain; and an extra-domain use permission judgment unit (309) which judges, according to the usage rule, whether or not use of the IC card (300) is permitted, when the IC card (300) is provided to the terminal apparatus (200). The IC card (300), in addition, supplies the encryption key to the terminal apparatus (200) which is outside of the domain, when the extra-domain use permission judgment unit (309) judges that use is permitted.

摘要翻译： IC卡（300）向属于由共享IC卡（300）的终端装置（200）构成的域的终端装置（200）提供能够进行内容使用的加密密钥。 IC卡（300）包括：在域外的终端装置（200）中存储用于使用IC卡（300）的规则的域外使用规则保持单元（305） 以及当将IC卡（300）提供给终端装置（200）时，根据使用规则判断是否允许使用IC卡（300）的域外使用许可判断单元（309） ）。 此外，当外域使用许可判断单元（309）判定允许使用时，IC卡（300）另外向该域外的终端装置（200）提供加密密钥。

公开(公告)号：US20050223415A1

公开(公告)日：2005-10-06

申请号：US11093116

申请日：2005-03-30

申请人： Masahiro Oho ,  Ryuichi Okamoto ,  Mitsuhiro Inoue ,  Hiroki Murakami ,  Katsumi Tokuda

发明人： Masahiro Oho ,  Ryuichi Okamoto ,  Mitsuhiro Inoue ,  Hiroki Murakami ,  Katsumi Tokuda

IPC分类号： G06F21/00 ,  H04K1/00 ,  H04L9/32

CPC分类号： G06F21/6254 ,  G06F21/606 ,  G06F2221/2129 ,  G06F2221/2135 ,  H04L9/3263 ,  H04L2209/42 ,  H04L2209/56 ,  H04L2209/603

摘要： The present invention provides a rights management terminal that can securely send and receive usage information while preventing spoofing and protecting user's privacy. The rights management terminal manages a copyright of a content using a license that includes a usage rule of the content, and includes: a first public key certificate management unit which manages, as a set, a first public key certificate that includes identification information for uniquely identifying at least one of the rights management terminal and a user using the terminal, and a first private key paired with a first public key included in the first public key certificate; a second public key certificate management unit which manages, as a set, a second public key certificate that does not include the identification information, and a second private key paired with a second public key included in the second public key certificate; a selection processing unit that selects, as a set, one of the following: the first public key certificate and the first private key; and the second public key certificate and the second private key; and an authentication processing unit that executes authentication for communicating with a server apparatus, using the public key and the private key that are selected as a set by the selection processing unit.

摘要翻译： 本发明提供一种权限管理终端，其能够安全地发送和接收使用信息，同时防止欺骗和保护用户的隐私。 权利管理终端使用包含内容的使用规则的许可来管理内容的版权，并且包括：第一公钥证书管理单元，作为一组管理包含唯一地标识信息的第一公开密钥证书 识别所述权限管理终端和使用所述终端的用户中的至少一个，以及与包含在所述第一公钥证书中的第一公开密钥配对的第一私钥; 第二公钥证书管理单元，作为一组管理不包括识别信息的第二公开密钥证书和与第二公开密钥证书中包含的第二公钥配对的第二私钥; 选择处理单元，其选择以下各项中的一个：第一公钥证书和第一私钥; 和第二公钥证书和第二私钥; 以及认证处理单元，其使用由所述选择处理单元选择为集合的所述公开密钥和所述私钥来执行与服务器装置通信的认证。

公开(公告)号：US20070112681A1

公开(公告)日：2007-05-17

申请号：US10581881

申请日：2004-12-16

申请人： Satoshi Niwano ,  Ryuichi Okamoto ,  Katsumi Tokuda ,  Hiroki Murakami

发明人： Satoshi Niwano ,  Ryuichi Okamoto ,  Katsumi Tokuda ,  Hiroki Murakami

IPC分类号： G06Q99/00

CPC分类号： G06F21/10 ,  G06F2221/0759 ,  H04L9/3247 ,  H04L2209/60

摘要： The transmission format A license conversion unit (430) of the terminal device (120) converts the transmission format license (710), which is obtained from the license relay server (110), described in a transmission format into a processing format license (510) to be specified by the conversion format specification information (711) and detects modifications on the license whose format has already been converted by performing a signature verification on the after-conversion processing format license (510) using a processing format signature (712).

摘要翻译： 终端装置（120）的发送格式许可证转换部（430）将以传送格式描述的许可证中继服务器（110）获得的发送格式许可证（710）转换为处理格式许可证（510 ）由转换格式指定信息（711）指定，并通过使用处理格式签名（712）对转换后处理格式许可证（510）执行签名验证来检测对其格式已经被转换的许可证的修改。

公开(公告)号：US07571488B2

公开(公告)日：2009-08-04

申请号：US11093116

申请日：2005-03-30

申请人： Masahiro Oho ,  Ryuichi Okamoto ,  Mitsuhiro Inoue ,  Hiroki Murakami ,  Katsumi Tokuda

发明人： Masahiro Oho ,  Ryuichi Okamoto ,  Mitsuhiro Inoue ,  Hiroki Murakami ,  Katsumi Tokuda

IPC分类号： H04L9/14

CPC分类号： G06F21/6254 ,  G06F21/606 ,  G06F2221/2129 ,  G06F2221/2135 ,  H04L9/3263 ,  H04L2209/42 ,  H04L2209/56 ,  H04L2209/603

摘要： The present invention provides a rights management terminal that can securely send and receive usage information while preventing spoofing and protecting user's privacy. The rights management terminal manages a copyright of a content using a license that includes a usage rule of the content, and includes: a first public key certificate management unit which manages, as a set, a first public key certificate that includes identification information for uniquely identifying at least one of the rights management terminal and a user using the terminal, and a first private key paired with a first public key included in the first public key certificate; a second public key certificate management unit which manages, as a set, a second public key certificate that does not include the identification information, and a second private key paired with a second public key included in the second public key certificate; a selection processing unit that selects, as a set, one of the following: the first public key certificate and the first private key; and the second public key certificate and the second private key; and an authentication processing unit that executes authentication for communicating with a server apparatus, using the public key and the private key that are selected as a set by the selection processing unit.

摘要翻译： 本发明提供一种权限管理终端，其能够安全地发送和接收使用信息，同时防止欺骗和保护用户的隐私。 权利管理终端使用包含内容的使用规则的许可来管理内容的版权，并且包括：第一公钥证书管理单元，作为一组管理包含唯一地标识信息的第一公钥证书 识别所述权限管理终端和使用所述终端的用户中的至少一个，以及与包含在所述第一公钥证书中的第一公开密钥配对的第一私钥; 第二公钥证书管理单元，作为一组管理不包括识别信息的第二公开密钥证书和与第二公开密钥证书中包含的第二公钥配对的第二私钥; 选择处理单元，其选择以下各项中的一个：第一公钥证书和第一私钥; 和第二公钥证书和第二私钥; 以及认证处理单元，其使用由所述选择处理单元选择为集合的所述公开密钥和所述私钥来执行与服务器装置通信的认证。

公开(公告)号：US20090187762A1

公开(公告)日：2009-07-23

申请号：US12374869

申请日：2007-07-27

申请人： Ryuichi Okamoto ,  Akio Higashi ,  Hiroki Murakami ,  Ketsumi Tokuda

发明人： Ryuichi Okamoto ,  Akio Higashi ,  Hiroki Murakami ,  Ketsumi Tokuda

IPC分类号： H04L9/14 ,  H04L9/08

CPC分类号： G06F21/10 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00768 ,  G11B20/00847 ,  G11B20/00869 ,  H04L9/002 ,  H04L9/0637 ,  H04L9/0891 ,  H04L9/14 ,  H04L2209/60 ,  H04N21/2541 ,  H04N21/26606 ,  H04N21/4334 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/63345

摘要： To provide a content distribution system which can prevent use of content which has been temporarily stored after the valid period.A content distribution system (1) including a license server (101) which issues a license, a content server (102) which transmits the content, a terminal device (103) which controls use of the content based on the issued license. The terminal device (103) does not allow the use of the received encrypted content when it is judged that the encrypted content received from the content server (102) is not the content received in real time.

摘要翻译： 提供可以防止在有效期限之后临时存储的内容的使用的内容分配系统。 一种内容分发系统（1），包括发行许可证的许可证服务器（101），发送内容的内容服务器（102），基于所发行的许可证控制内容的使用的终端设备（103）。 当判断从内容服务器（102）接收的加密内容不是实时接收的内容时，终端设备（103）不允许使用所接收的加密内容。

公开(公告)号：US20090010439A1

公开(公告)日：2009-01-08

申请号：US12162054

申请日：2007-01-24

申请人： Ryuichi Okamoto ,  Akio Higashi ,  Satoshi Niwano ,  Hiroki Murakami

发明人： Ryuichi Okamoto ,  Akio Higashi ,  Satoshi Niwano ,  Hiroki Murakami

IPC分类号： H04L9/08 ,  G06F9/46 ,  G06F17/30

CPC分类号： H04L63/123 ,  G06F21/10 ,  G06F2221/0782 ,  H04L63/0428 ,  H04L63/06 ,  H04L63/08 ,  H04L69/40

摘要： To reduce a frequency of recording communication management information for communication disconnection countermeasure. A digital content distribution system includes a license server (101) that issues a license, and a user terminal (103) that controls use of content based on the issued license. The license server (101) judges, according to the license to be issued, whether or not the communication management information for the communication disconnection countermeasure needs to be recorded, and notifies the user terminal of a result of the judgment. This enables the user terminal (103) to reduce the frequency of recording the communication management information.

摘要翻译： 减少通信断线对策记录通信管理信息的频率。 数字内容分发系统包括发行许可证的许可证服务器（101）和基于所发行的许可证来控制内容的使用的用户终端（103）。 许可证服务器（101）根据要颁发的许可证判断是否需要记录用于通信断开对策的通信管理信息，并向用户终端通知判断结果。 这使得用户终端（103）能够降低记录通信管理信息的频率。

公开(公告)号：US07676042B2

公开(公告)日：2010-03-09

申请号：US12162054

申请日：2007-01-24

申请人： Ryuichi Okamoto ,  Akio Higashi ,  Satoshi Niwano ,  Hiroki Murakami

发明人： Ryuichi Okamoto ,  Akio Higashi ,  Satoshi Niwano ,  Hiroki Murakami

IPC分类号： H04L9/08

CPC分类号： H04L63/123 ,  G06F21/10 ,  G06F2221/0782 ,  H04L63/0428 ,  H04L63/06 ,  H04L63/08 ,  H04L69/40

摘要： To reduce a frequency of recording communication management information for communication disconnection countermeasure. A digital content distribution system includes a license server (101) that issues a license, and a user terminal (103) that controls use of content based on the issued license. The license server (101) judges, according to the license to be issued, whether or not the communication management information for the communication disconnection countermeasure needs to be recorded, and notifies the user terminal of a result of the judgment. This enables the user terminal (103) to reduce the frequency of recording the communication management information.

摘要翻译： 减少通信断线对策记录通信管理信息的频率。 数字内容分发系统包括发行许可证的许可证服务器（101）和基于所发行的许可证来控制内容的使用的用户终端（103）。 许可证服务器（101）根据要颁发的许可证判断是否需要记录用于通信断开对策的通信管理信息，并向用户终端通知判断结果。 这使得用户终端（103）能够降低记录通信管理信息的频率。