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    Contents using device, and contents using method
    4.
    发明授权
    Contents using device, and contents using method 有权
    内容使用设备，内容使用方法

    公开(公告)号：US07984508B2

    公开(公告)日：2011-07-19

    申请号：US11666617

    申请日：2005-10-21

    申请人： Tohru Nakahara ,  Masaki Igarashi ,  Ryuichi Okamoto ,  Kouji Miura ,  Katsumi Tokuda

    发明人： Tohru Nakahara ,  Masaki Igarashi ,  Ryuichi Okamoto ,  Kouji Miura ,  Katsumi Tokuda

    IPC分类号： G06F12/14

    CPC分类号： G06F21/554 ,  G06F21/10 ,  G06F2221/2105 ,  G06F2221/2137 ,  G06F2221/2151

    摘要： A contents using device (or a terminal device) 300 is composed of: a license processing unit 305 which judges, on the basis of a usage rule of a license, whether or not the content is available; a content reproduction unit 304 which uses the content judged by the terminal device 300 to be available; a restriction unit (or a content reproduction unit 304) which restricts the license corresponding to the contents from being used by another source by reason that the license is currently in use, for a time period between a start and a normal end of the content usage by the content reproduction unit 304; an event detection unit 307 which detects a predetermined event that occurs between the start and the normal end of the content usage and that forcefully aborts the content usage; a restriction-relaxation necessity judgment unit (or a recovery/penalty judgment unit) 309 which judges whether or not the predetermined event is against an intention of a user; and a restriction relaxation unit (or a license recovery unit) 306 which relaxes the restriction on the content usage when the recovery/penalty judgment unit 309 judges that the predetermined event is against the intention of the user.

    摘要翻译： 内容使用装置（或终端装置）300由以下部分组成：许可证处理单元305，根据许可的使用规则判断内容是否可用; 使用由终端装置300判断的内容可用的内容再现单元304; 限制单元（或内容再现单元304），其在内容使用的开始和正常结束之间的时间段内限制与该内容相对应的许可证被另一个源使用，因为该许可证当前正在使用 由内容再现单元304; 事件检测单元307，其检测在内容使用的开始和正常结束之间发生的预定事件，并强制地中止内容使用; 限制放松必要性判断单元（或恢复/罚款判断单元）309，其判断预定事件是否违反用户的意图; 以及限制放松单元（或许可证恢复单元）306，当恢复/罚款判断单元309判断预定事件违反用户的意图时，放宽对内容使用的限制。

    Contents Using Device, and Contents Using Method
    5.
    发明申请
    Contents Using Device, and Contents Using Method 有权
    内容使用设备和内容使用方法

    公开(公告)号：US20080263624A1

    公开(公告)日：2008-10-23

    申请号：US11666617

    申请日：2005-10-21

    申请人： Tohru Nakahara ,  Masaki Igarashi ,  Ryuichi Okamoto ,  Kouji Miura ,  Katsumi Tokuda

    发明人： Tohru Nakahara ,  Masaki Igarashi ,  Ryuichi Okamoto ,  Kouji Miura ,  Katsumi Tokuda

    IPC分类号： G06F21/00

    CPC分类号： G06F21/554 ,  G06F21/10 ,  G06F2221/2105 ,  G06F2221/2137 ,  G06F2221/2151

    摘要： A contents using device (or a terminal device) 300 is composed of: a license processing unit 305 which judges, on the basis of a usage rule of a license, whether or not the content is available; a content reproduction unit 304 which uses the content judged by the terminal device 300 to be available; a restriction unit (or a content reproduction unit 304) which restricts the license corresponding to the contents from being used by another source by reason that the license is currently in use, for a time period between a start and a normal end of the content usage by the content reproduction unit 304; an event detection unit 307 which detects a predetermined event that occurs between the start and the normal end of the content usage and that forcefully aborts the content usage; a restriction-relaxation necessity judgment unit (or a recovery/penalty judgment unit) 309 which judges whether or not the predetermined event is against an intention of a user; and a restriction relaxation unit (or a license recovery unit) 306 which relaxes the restriction on the content usage when the recovery/penalty judgment unit 309 judges that the predetermined event is against the intention of the user.

    摘要翻译： 内容使用装置（或终端装置）300由以下部分组成：许可证处理单元305，根据许可的使用规则判断内容是否可用; 使用由终端装置300判断的内容可用的内容再现单元304; 限制单元（或内容再现单元304），其在内容使用的开始和正常结束之间的时间段内限制与该内容相对应的许可证被另一个源使用，因为该许可证当前正在使用 由内容再现单元304; 事件检测单元307，其检测在内容使用的开始和正常结束之间发生的预定事件，并强制地中止内容使用; 限制放松必要性判断单元（或恢复/罚款判断单元）309，其判断预定事件是否违反用户的意图; 以及限制放松单元（或许可证恢复单元）306，当恢复/罚款判断单元309判断预定事件违反用户的意图时，放宽对内容使用的限制。

    Content playback apparatus, content playback method, computer program, key relay apparatus, and recording medium
    6.
    发明授权
    Content playback apparatus, content playback method, computer program, key relay apparatus, and recording medium 有权
    内容再现装置，内容再现方法，计算机程序，密钥中继装置和记录介质

    公开(公告)号：US07940935B2

    公开(公告)日：2011-05-10

    申请号：US11629352

    申请日：2005-06-30

    申请人： Tohru Nakahara ,  Ryuichi Okamoto ,  Masaya Yamamoto ,  Katsumi Tokuda ,  Masaya Miyazaki ,  Masayuki Kozuka

    发明人： Tohru Nakahara ,  Ryuichi Okamoto ,  Masaya Yamamoto ,  Katsumi Tokuda ,  Masaya Miyazaki ,  Masayuki Kozuka

    IPC分类号： H04L9/08

    CPC分类号： G06F21/10 ,  G06Q20/3829 ,  G11B20/00086 ,  G11B20/00181 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00253 ,  G11B20/00492 ,  G11B20/00731 ,  G11B20/00797 ,  G11B20/0084 ,  G11B20/00847 ,  G11B20/00862 ,  G11B27/105 ,  G11B27/329 ,  G11B2220/2541

    摘要： A content playback apparatus reduces load concentration on a specific server apparatus that manages content keys of encrypted content, while protecting copyrights of the content. The content apparatus makes playback of content recorded in a recording medium sold possible after the specific server breaks down. A key acquisition control unit (204) reads a playback control information table (211) from a recording medium (102) via a reading unit (201). The key acquisition unit (204) acquires a rights key via a key acquisition intermediation unit (223) from an apparatus specified by an acquisition-destination type and a request-destination type that are stored in the playback control information table (211) and that corresponding to the content to be played. The key acquisition unit (204) generates a content key using the acquired rights key and, when required, a medium key recorded in a medium. A decryption unit (203) decrypts encrypted content using the content key.

    摘要翻译： 内容再现装置降低对管理加密内容的内容密钥的特定服务器装置的负载集中，同时保护内容的版权。 在特定服务器故障之后，内容设备使得记录在记录介质中的内容的播放成为可能。 密钥获取控制单元（204）经由读取单元（201）从记录介质（102）读取重放控制信息表（211）。 密钥获取单元（204）经由密钥获取中介单元（223）从由存储在播放控制信息表（211）中的获取目的地类型和请求 - 目的地类型指定的设备获取权限密钥，并且 对应于要播放的内容。 密钥获取单元（204）使用所获取的权限密钥和需要时记录在介质中的密钥生成内容密钥。 解密单元（203）使用内容密钥来解密加密的内容。

    Content usage management system and server used in the system
    8.
    发明授权
    Content usage management system and server used in the system 有权
    系统中使用的内容使用管理系统和服务器

    公开(公告)号：US07395245B2

    公开(公告)日：2008-07-01

    申请号：US10161673

    申请日：2002-06-05

    申请人： Ryuichi Okamoto ,  Katsumi Tokuda ,  Kouji Miura

    发明人： Ryuichi Okamoto ,  Katsumi Tokuda ,  Kouji Miura

    IPC分类号： H04L9/32

    CPC分类号： G06F21/10

    摘要： A content usage management system includes a terminal device using content as digital production and a server device managing usage of the content on the terminal device. The server device includes a license information memory unit that memorizes license information indicating a usage rule of the content based on a user of the terminal device, and a license ticket issuance unit that generates a license ticket as right information indicating a part or all of a usage rule on the license information corresponding to the user based on a request from the user. The terminal device includes a requesting unit that requests usage of the content to the server device according to the user's designation, a receiving unit that receives the license ticket sent from the server device, and a content usage control unit that controls usage of the content according to the usage rule indicated on the received license ticket. The requesting unit makes a request by sending expected information indicating content to be requested and a usage volume of the content, and the license ticket issuance unit generates a license ticket according to the expected information sent from the requesting unit and sends the license ticket to the terminal device.

    摘要翻译： 内容使用管理系统包括使用内容作为数字制作的终端装置和管理终端装置上的内容的使用的服务器装置。 服务器装置包括许可证信息存储单元，其基于终端设备的用户存储指示内容的使用规则的许可信息;以及许可证发行单元，其生成许可证作为表示部分或全部的一部分或全部的权限信息 基于来自用户的请求对应于用户的许可信息的使用规则。 终端装置包括：请求单元，其根据用户的指定向服务器设备请求使用内容;接收单元，其接收从服务器设备发送的许可证;以及内容使用控制单元，其控制内容的使用， 到接收到的许可证单上指示的使用规则。 请求单元通过发送指示要请求的内容的预期信息和内容的使用量来发出请求，并且许可证发行单元根据从请求单元发送的预期信息生成许可证，并将许可证发送到 终端设备。

    Digital content distribution system
    10.
    发明申请
    Digital content distribution system 审中-公开
    数字内容分发系统

    公开(公告)号：US20060195405A1

    公开(公告)日：2006-08-31

    申请号：US10542683

    申请日：2004-01-27

    申请人： Kouji Miura ,  Masaya Yamamoto ,  Katsumi Tokuda

    发明人： Kouji Miura ,  Masaya Yamamoto ,  Katsumi Tokuda

    IPC分类号： H04K1/00 ,  H04L9/00 ,  G06Q99/00

    CPC分类号： H04L63/10 ,  G06F21/10 ,  G06F2221/0795 ,  G06Q20/367 ,  G06Q30/02 ,  H04L2463/101

    摘要： The content distribution system according to the present invention is comprised of: a server device and a terminal device, the server device providing the terminal device with a license for using a content based on transaction processes, each including receiving of a request message, sending of a response message, and receiving of a commit message for finalizing completion of a transaction, and the terminal device controlling use of the content based on the license obtained from the server device, wherein the terminal device includes: a holding unit that holds a 1-bit transaction identification flag indicating whether a current transaction process is in progress or completed; and a sending unit that sends the transaction identification bit instead of an omitted commit message when sending a second or later request message, without sending a commit message in each transaction process except for a last transaction process in successive transaction processes, and the server device includes: a receiving unit that receives the transaction identification flag that is sent together with the second or later request message in the successive transaction processes; and a judgment unit that judges whether or not completion of one transaction should be finalized based on the received transaction identification flag.

    摘要翻译： 根据本发明的内容分发系统包括：服务器设备和终端设备，所述服务器设备向终端设备提供基于交易过程使用内容的许可，每个包括接收到请求消息，发送 响应消息，以及接收用于完成事务的完成的提交消息，以及基于从服务器设备获得的许可来控制内容的使用的终端设备，其中，终端设备包括：保持单元， 指示当前交易处理是正在进行还是完成; 以及发送单元，其在发送第二或更后的请求消息时发送所述事务标识位而不是省略的提交消息，而不在每个事务处理中发送提交消息，除了连续的事务处理中的最后事务处理，并且所述服务器设备包括 ：接收单元，其接收与所述连续事务处理中的所述第二或更后的请求消息一起发送的所述事务标识标志; 以及判断单元，其基于接收到的交易识别标志来判断是否应当完成一个交易的完成。