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1. 发明授权

US08386606B2 Group formation/management system, group management device, and member device 有权
标题翻译：集团组建/管理系统，集团管理设备和会员设备
公开(公告)号：US08386606B2
公开(公告)日：2013-02-26
申请号：US12173531
申请日：2008-07-15
申请人： Natsume Matsuzaki , Toshihisa Abe , Toshihisa Nakano , Yuichi Futa , Masaya Miyazaki
发明人： Natsume Matsuzaki , Toshihisa Abe , Toshihisa Nakano , Yuichi Futa , Masaya Miyazaki
IPC分类号： G06F15/173
CPC分类号： G06F21/10 , G06F2221/0706 , G06F2221/2103 , G06F2221/2117
摘要： A group management device provides with a content a device included in a group managed by the group management device. The group management device includes a storage unit that stores a total number of remote device that the group management device currently registers, a maximum number of remote devices that the group management device is permitted to register, a total number of local device that the group management device currently registers, and a maximum number of local devices that the group management device is permitted to register. The group management device also includes a judging unit that judges whether the total number of the remote device exceeds the maximum number of the remote devices when it is judged that the one device is the remote device. The judging unit judges whether the total number of the local device exceeds the maximum number of the local devices when it is judged that the one device is the local device.
摘要翻译：组管理装置向组管理装置管理的组中包含的装置提供内容。组管理装置包括存储单元，存储组管理装置当前登记的远程设备的总数，组管理装置允许登记的最大数量的远程设备，组管理的本地设备的总数设备当前注册，允许组管理设备注册的本地设备的最大数量。组管理装置还包括判断单元，当判断为一个设备是远程设备时，该判断单元判断远程设备的总数是否超过远程设备的最大数量。当判断为一个设备是本地设备时，判断单元判断本地设备的总数是否超过本地设备的最大数量。

2. 发明申请

US20080275991A1 GROUP FORMATION/MANAGEMENT SYSTEM, GROUP MANAGEMENT DEVICE, AND MEMBER DEVICE 有权
标题翻译：组织形成/管理系统，集团管理设备和会员设备
公开(公告)号：US20080275991A1
公开(公告)日：2008-11-06
申请号：US12173531
申请日：2008-07-15
申请人： Natsume Matsuzaki , Toshihisa Abe , Toshihisa Nakano , Yuichi Futa , Masaya Miyazaki
发明人： Natsume Matsuzaki , Toshihisa Abe , Toshihisa Nakano , Yuichi Futa , Masaya Miyazaki
IPC分类号： G06F15/173
CPC分类号： G06F21/10 , G06F2221/0706 , G06F2221/2103 , G06F2221/2117
摘要： A group management device provides with a content a device included in a group managed by the group management device. The group management device includes a storage unit that stores a total number of remote device that the group management device currently registers, a maximum number of remote devices that the group management device is permitted to register, a total number of local device that the group management device currently registers, and a maximum number of local devices that the group management device is permitted to register. The group management device also includes a judging unit that judges whether the total number of the remote device exceeds the maximum number of the remote devices when it is judged that the one device is the remote device. The judging unit judges whether the total number of the local device exceeds the maximum number of the local devices when it is judged that the one device is the local device.
摘要翻译：组管理装置向组管理装置管理的组中包含的装置提供内容。组管理装置包括存储单元，存储组管理装置当前登记的远程设备的总数，组管理装置允许登记的最大数量的远程设备，组管理的本地设备的总数设备当前注册，允许组管理设备注册的本地设备的最大数量。组管理装置还包括判断单元，当判断为一个设备是远程设备时，该判断单元判断远程设备的总数是否超过远程设备的最大数量。当判断为一个设备是本地设备时，判断单元判断本地设备的总数是否超过本地设备的最大数量。

3. 发明授权

US07441117B2 Group formation/management system, group management device, and member device 有权
标题翻译：集团组建/管理系统，集团管理设备和会员设备
公开(公告)号：US07441117B2
公开(公告)日：2008-10-21
申请号：US10649678
申请日：2003-08-28
申请人： Natsume Matsuzaki , Toshihisa Abe , Toshihisa Nakano , Yuichi Futa , Masaya Miyazaki
发明人： Natsume Matsuzaki , Toshihisa Abe , Toshihisa Nakano , Yuichi Futa , Masaya Miyazaki
IPC分类号： H04L9/32
CPC分类号： G06F21/10 , G06F2221/0706 , G06F2221/2103 , G06F2221/2117
摘要： A group formation/management system rigidly sets a group range, allows contents to be used freely among member devices in the group, and includes one or more registered member devices for holding common secret information unique to the group, a new member device for transmitting a request for registration in the group and receiving and holding common secret information, and a group management device for receiving the registration request from the new member device and, when the number of registered member devices is less than the maximum number of registerable member devices, outputting the common secret information to the new member device. Furthermore, because member devices are authenticated using the common secret information when contents are to be used, and contents are only delivered if the authentication is successful, member devices that do not hold the common secret information (i.e. unregistered member devices) can be prevented from using contents.
摘要翻译：群组形成/管理系统刚性地设置组范围，允许组内的成员设备之间自由使用内容，并且包括用于保存该组唯一的公用秘密信息的一个或多个注册成员设备，用于发送组请求在组中注册并接收和保存公用秘密信息;以及组管理装置，用于从新成员设备接收注册请求，并且当注册成员设备的数量小于可注册成员设备的最大数量时，输出向新成员设备的通用秘密信息。此外，由于当使用内容时会使用公用秘密信息来认证成员设备，如果认证成功，则仅传送内容，因此可以防止不保存公用秘密信息的成员设备（即，未注册的成员设备）使用内容。

4. 发明申请

US20080196109A1 Device Registration System and Device Registration Apparatus 有权
标题翻译：设备注册系统和设备注册设备
公开(公告)号：US20080196109A1
公开(公告)日：2008-08-14
申请号：US11631798
申请日：2005-07-14
申请人： Natsume Matsuzaki , Masaya Miyazaki , Yuichi Futa , Toshihisa Nakano , Hiroki Yamauchi , Soichiro Fujioka , Yuko Tsusaka
发明人： Natsume Matsuzaki , Masaya Miyazaki , Yuichi Futa , Toshihisa Nakano , Hiroki Yamauchi , Soichiro Fujioka , Yuko Tsusaka
IPC分类号： G06F21/00
CPC分类号： G06F21/10
摘要： When a PC 20 transmits a content request to a device registration apparatus 10 in which a permitted number of devices have already been registered, an expiration time management unit 105 judges whether any registration information registered in a registration list management unit 102 has an exceeded registration expiration time. If registration information with an exceeded registration expiration time is registered in the registration list management unit 102, the registration list management unit 102 deletes this registration information, and newly registers registration information of the PC 20.
摘要翻译：当PC20向已注册了许可数量的设备的设备登记设备10发送内容请求时，期满时间管理单元105判断登记在注册表管理单元102中的任何注册信息是否具有超过的注册期满时间。如果在注册表管理单元102中登记了具有超过注册的期满时间的注册信息，则注册列表管理单元102删除该注册信息，并且新登记PC 20的注册信息。

5. 发明授权

US07984489B2 Device registration system and device registration apparatus 有权
标题翻译：设备注册系统和设备注册设备
公开(公告)号：US07984489B2
公开(公告)日：2011-07-19
申请号：US11631798
申请日：2005-07-14
申请人： Natsume Matsuzaki , Masaya Miyazaki , Yuichi Futa , Toshihisa Nakano , Hiroki Yamauchi , Soichiro Fujioka , Yuko Tsusaka
发明人： Natsume Matsuzaki , Masaya Miyazaki , Yuichi Futa , Toshihisa Nakano , Hiroki Yamauchi , Soichiro Fujioka , Yuko Tsusaka
IPC分类号： H04L9/00
CPC分类号： G06F21/10
摘要： When a PC transmits a content request to a device registration apparatus in which a permitted number of devices have already been registered, an expiration time management unit judges whether any registration information registered in a registration list management unit has an exceeded registration expiration time. If registration information with an exceeded registration expiration time is registered in the registration list management unit, the registration list management unit deletes this registration information, and newly registers registration information of the PC.
摘要翻译：当PC向其中已经登记了许可数量的设备的设备注册设备发送内容请求时，期满时间管理单元判断登记在注册列表管理单元中的任何注册信息是否具有超过的注册期满时间。如果在注册表管理单元中登记具有超过注册到期时间的注册信息，则注册列表管理单元删除该注册信息，并且新登记PC的注册信息。

6. 发明授权

US07693795B2 Digital work protection system 有权
标题翻译：数字化工作保护系统
公开(公告)号：US07693795B2
公开(公告)日：2010-04-06
申请号：US10655129
申请日：2003-09-05
申请人： Masato Yamamichi , Natsume Matsuzaki , Toshihisa Abe , Toshihisa Nakano , Masaya Miyazaki
发明人： Masato Yamamichi , Natsume Matsuzaki , Toshihisa Abe , Toshihisa Nakano , Masaya Miyazaki
IPC分类号： G06F21/00
CPC分类号： G06F21/10 , G11B20/00086 , G11B20/00115 , G11B20/00144 , G11B20/00195 , G11B20/0021 , G11B20/00347 , G11B20/00492 , G11B20/0071 , G11B20/0084
摘要： Disclosed is a digital work protection system enabling a content distributor to flexibly define usage patterns of content permitted for users. The system is composed of a recording device and a playback device. The recording device acquires a digital work, range information showing a permission range within which the digital work is permitted to be used, and a subrange key for each subrange, generates an encryption key using all the acquired subrange keys, encrypts the digital work based on the encryption key to generate encryption information, and writes the encryption information and the range information to a recording medium. The playback device reads the range information and the encrypted information from the recording medium, acquires a subrange key for each subrange, generates a decryption key using all the acquired subrange keys, decrypts the encrypted information based on the decryption key to generate a digital work, and plays the digital work.
摘要翻译：公开了一种数字作业保护系统，使得内容分发者能够灵活地定义允许用户使用的内容的使用模式。该系统由记录装置和播放装置组成。记录装置获取数字作品，示出允许使用数字作品的许可范围的范围信息和每个子范围的子类别密钥，使用所有获取的子分类密钥生成加密密钥，基于用于生成加密信息的加密密钥，并将加密信息和范围信息写入记录介质。播放装置从记录介质读取范围信息和加密信息，获取每个子范围的子范围密钥，使用所有获取的子范围密钥生成解密密钥，基于解密密钥解密加密信息以产生数字作业，并播放数字作品。

7. 发明授权

US07949703B2 Group admission system and server and client therefor 有权
标题翻译：集体录取系统及服务器及客户端
公开(公告)号：US07949703B2
公开(公告)日：2011-05-24
申请号：US10751964
申请日：2004-01-07
申请人： Natsume Matsuzaki , Toshihisa Nakano , Yuichi Futa
发明人： Natsume Matsuzaki , Toshihisa Nakano , Yuichi Futa
IPC分类号： G06F15/16
CPC分类号： H04L29/06 , G06F21/10 , G06F2209/505 , G06F2221/0706 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1021 , H04L67/125 , H04L67/2814
摘要： Disclosed is a group admission system having a client and a server that belongs to a closed group within which contents are available. The client determines whether it is permissible to request to join the group to be a member device thereof based on the number of groups that the client is in and the maximum number of groups that the client is permitted to be in. If permissible, the client transmits a registration request to the server with information unique to the client. The server determines whether to permit the client to join the group by registering with the server based on the number of member devices registered with the server and the maximum number of member devices registerable with the server. If it is permitted, the server registers the unique information, and transmits group identification information to the client. The client receives and stores the group identification information.
摘要翻译：公开了具有客户端和属于内容可用的封闭组的服务器的组准许系统。客户端根据客户端所在的组数和允许客户端的最大组数确定是否允许请求加入组成为其成员设备。如果允许，客户端使用客户端唯一的信息向服务器发送注册请求。服务器根据登录服务器的成员设备号和服务器可登录的成员设备的最大数量，确定是否允许客户端通过向服务器注册来加入组。如果允许，则服务器注册唯一信息，并将组标识信息发送给客户端。客户端接收并存储组标识信息。

8. 发明申请

US20080022416A1 Content Management System and Content Management Unit 有权
标题翻译：内容管理系统和内容管理单元
公开(公告)号：US20080022416A1
公开(公告)日：2008-01-24
申请号：US11632863
申请日：2005-07-13
申请人： Hiroki Yamauchi , Natsume Matsuzaki , Yuichi Futa , Toshihisa Nakano
发明人： Hiroki Yamauchi , Natsume Matsuzaki , Yuichi Futa , Toshihisa Nakano
IPC分类号： G06F21/22
CPC分类号： G06F21/10 , G06F2221/2137
摘要： A content management system which can prevent a content from being copied exceeding the limited number of copies for the content. The content management system includes a first content management device and a second content management device. The first content management device stores period information that indicates an available period during which a first external device is permitted to use a copied content which has been copied from the content, and outputs the period information to the second content management device when the content is moved. Upon receiving the period information from the first content management device, the second content management device judges whether the available period of the copied content has expired, using the received period information, and if it is judges that the available period has not expired, it inhibits the content from being copied to the second external device.
摘要翻译：一种内容管理系统，其可以防止内容被复制超过该内容的有限数量的副本。内容管理系统包括第一内容管理装置和第二内容管理装置。第一内容管理装置存储指示允许第一外部装置使用从内容复制的复制内容的可用期间的周期信息，并且当内容移动时将该周期信息输出到第二内容管理装置。在从第一内容管理装置接收到期间信息的情况下，第二内容管理装置使用接收到的周期信息来判断复制内容的可用期间是否到期，如果判断为可用期间未到期，则抑制将内容从复制到第二个外部设备。

9. 发明授权

US08220064B2 Content management system and content management unit 有权
标题翻译：内容管理系统和内容管理单元
公开(公告)号：US08220064B2
公开(公告)日：2012-07-10
申请号：US11632863
申请日：2005-07-13
申请人： Hiroki Yamauchi , Natsume Matsuzaki , Yuichi Futa , Toshihisa Nakano
发明人： Hiroki Yamauchi , Natsume Matsuzaki , Yuichi Futa , Toshihisa Nakano
IPC分类号： H04L9/00
CPC分类号： G06F21/10 , G06F2221/2137
摘要： A content management system which can prevent a content from being copied exceeding the limited number of copies for the content. The content management system includes a first content management device and a second content management device. The first content management device stores period information that indicates an available period during which a first external device is permitted to use a copied content which has been copied from the content, and outputs the period information to the second content management device when the content is moved. Upon receiving the period information from the first content management device, the second content management device judges whether the available period of the copied content has expired, using the received period information, and if it is judges that the available period has not expired, it inhibits the content from being copied to the second external device.
摘要翻译：一种内容管理系统，其可以防止内容被复制超过该内容的有限数量的副本。内容管理系统包括第一内容管理装置和第二内容管理装置。第一内容管理装置存储指示允许第一外部装置使用从内容复制的复制内容的可用期间的周期信息，并且当内容移动时将该周期信息输出到第二内容管理装置。在从第一内容管理装置接收到期间信息的情况下，第二内容管理装置使用接收到的周期信息来判断复制内容的可用期间是否到期，如果判断为可用期间未到期，则抑制将内容从复制到第二个外部设备。

10. 发明授权

US07979731B2 Time authentication device, time authentication method, computer program, recording medium, integrated circuit, and time authentication system 有权
标题翻译：时间认证设备，时间认证方法，计算机程序，记录介质，集成电路和时间认证系统
公开(公告)号：US07979731B2
公开(公告)日：2011-07-12
申请号：US11632349
申请日：2005-07-13
申请人： Yuichi Futa , Natsume Matsuzaki , Hiroki Yamauchi , Toshihisa Nakano
发明人： Yuichi Futa , Natsume Matsuzaki , Hiroki Yamauchi , Toshihisa Nakano
IPC分类号： G06F1/00 , G06F7/04 , G06F17/30 , H04L9/32 , H04N7/18 , H04N7/16
CPC分类号： H04L63/08 , H04L9/12 , H04L9/3297 , H04L2209/60 , H04L2463/121
摘要： A time authentication device identifies clocks that show a time falling within the predetermined permissible range as compared with a time shown by the time authentication device. In a time authentication device embodied as a distribution device, a time-relation information storage unit stores a playback-device-time measured by a clock unit of a playback device, and also stores a distribution-device-time measured by a clock unit when the playback-device-time is acquired. The time authentication unit acquires from the playback device a target time measured by the clock unit, and also acquires an authentication time measured by the clock unit when the target time is received. The time authentication unit then calculates a first difference, a second difference, an authentication difference. If the authentication difference is smaller than or equal to a predetermined threshold, the time authentication unit judges that the clock unit of the playback device is valid.
摘要翻译：与时间认证装置所示的时间相比，时间认证装置识别出显示与预定允许范围内的时间的时钟。在体现为分发装置的时间认证装置中，时间关系信息存储单元存储由重放装置的时钟单元测量的重放装置时间，并且还存储由时钟单元测量的分配装置时间获取播放设备时间。时间认证单元从重放设备获取由时钟单元测量的目标时间，并且还获取当接收到目标时间时由时钟单元测量的认证时间。时间认证单元然后计算第一差异，第二差异，认证差异。如果认证差异小于或等于预定阈值，则时间认证单元判断播放设备的时钟单元有效。

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