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1. 发明申请

US20060085814A1 Digital content reproduction device and digital content use control method 审中-公开
标题翻译：数字内容再现装置和数字内容使用控制方法
公开(公告)号：US20060085814A1
公开(公告)日：2006-04-20
申请号：US10541810
申请日：2004-04-01
申请人： Ryuichi Okamoto , Susumu Kobayashi , Stefan Walter , Katsumi Tokuda
发明人： Ryuichi Okamoto , Susumu Kobayashi , Stefan Walter , Katsumi Tokuda
IPC分类号： H04N5/445 , G06F13/00 , H04N7/16 , G06F3/00
CPC分类号： H04N21/44204 , G11B20/00086 , G11B20/00528 , G11B20/00746 , G11B20/0084 , H04N5/783 , H04N5/913 , H04N7/165 , H04N7/167 , H04N21/4325 , H04N21/440281 , H04N21/4882 , H04N2005/91364
摘要： In a content reproduction apparatus according to the present invention, for example, a content usage time indicating a usage permitted time of content is set for the content, and a content reproduction management unit 811 manages a usage state and a rewind limit position of the content. Here, the rewind limit position is a position which indicates that the content cannot be reproduced till the end in the case where a user executes a rewind operation. For example, in the case where the user attempts to execute the rewind operation on the part that is in front of the rewind limit position, the content management unit 811 notifies the user of a warning message in advance.
摘要翻译：在根据本发明的内容再现装置中，例如，为内容设定表示内容的使用许可时间的内容使用时间，内容再现管理部811管理内容的使用状态和倒退极限位置。这里，倒带极限位置是表示在用户执行倒带操作的情况下直到结束为止不能再现内容的位置。例如，在用户尝试对倒带限制位置前的部分执行倒带操作的情况下，内容管理单元811预先通知用户警告消息。

2. 发明申请

US20060253400A1 Digital content delivery system 审中-公开
标题翻译：数字内容传送系统
公开(公告)号：US20060253400A1
公开(公告)日：2006-11-09
申请号：US10538022
申请日：2004-03-04
申请人： Ryuichi Okamoto , Susumu Kobayashi , Stefan Walter , Katsumi Tokuda
发明人： Ryuichi Okamoto , Susumu Kobayashi , Stefan Walter , Katsumi Tokuda
IPC分类号： G06Q99/00
CPC分类号： G06Q30/06 , G06F21/105
摘要： A digital content distribution system (1) is composed of a right management server (100) and a user terminal (110) which are connected via a transmission line (120). The right management server (100) is made up of: a license data generating unit (304) which issues license data (usage right information) (1700) indicating a usage rule of content that is a digital copyrighted work to the user terminal (110); and an access condition setting unit (305) which notifies the user terminal (110) of update information (access condition) regarding necessity of updating the license data (1700) issued to the user terminal (110). The user terminal (110) is made up of: a content DB (701) which stores content; a license data DB (702) which stores the license data (1700) issued by the license data generating unit (304); a content reproducing unit (710) which uses the content stored in the content DB (701) in accordance with the usage rule indicated by the license data (1700) stored in the license data DB (702); and a license data upgrading unit (706) which requests the right management server (100) to update the license data (1700) stored in the license data DB (702) in accordance with the access condition notified by the access condition setting unit (305).
摘要翻译：数字内容分发系统（1）由通过传输线（120）连接的右管理服务器（100）和用户终端（110）组成。正确的管理服务器（100）由许可证数据生成单元（304）向用户终端（110）发出指示作为数字版权作品的内容的使用规则的许可数据（使用权信息）（1700））; 以及访问条件设置单元，其向用户终端（110）通知关于发布给用户终端（110）的更新许可证数据（1700）的必要性的更新信息（访问条件）。用户终端（110）由以下部分组成：存储内容的内容DB（701）许可证数据DB（702），其存储由许可数据生成单元（304）发行的许可证数据（1700）; 根据存储在许可证数据DB（702）中的由许可数据（1700）指示的使用规则，使用存储在内容DB（701）中的内容的内容再现单元（710）以及许可证数据升级单元，其根据由访问条件设置单元（305）通知的访问条件请求权限管理服务器（100）更新存储在许可证数据DB（702）中的许可证数据（1700））。

3. 发明授权

US08521651B2 Digital content reproducing apparatus and method thereof 有权
标题翻译：数字内容再现装置及其方法
公开(公告)号：US08521651B2
公开(公告)日：2013-08-27
申请号：US10542362
申请日：2004-04-07
申请人： Ryuichi Okamoto , Susumu Kobayashi , Katsumi Tokuda
发明人： Ryuichi Okamoto , Susumu Kobayashi , Katsumi Tokuda
IPC分类号： G06Q20/00
CPC分类号： G06F21/10
摘要： A user terminal (110) having a license purchase unit (603) obtaining a license (500) indicating a content usable time (502) of a content data (200) composed of a plurality of elements (203), each of which can be replayed individually. The user terminal (110) also having an availability judgment unit (604) judging whether or not encrypted elements (203) included in the content data (200) are available, based on the content usable time (502) indicated in the obtained license (500), and having a replay/display unit (607) replaying the encrypted elements judged as available. In addition, the user terminal (110) having a use status management unit (608) specifying license-consuming elements, each of which consumes an authorized amount of replay under right, out of the elements that are being replayed, and measuring a content used time (504) consumed by replaying the specified license-consuming elements.
摘要翻译：一种具有许可证购买单元（603）的用户终端（110），其获得指示由多个元素（203）组成的内容数据（200）的内容可用时间（502）的许可证（500），所述多个元素（203）单独重播。用户终端（110）还具有可用性判断单元（604），基于所获得的许可证中指示的内容可用时间（502），判断包含在内容数据（200）中的加密元素（203）是否可用 500），并且具有重放被判断为可用的加密元素的重放/显示单元（607）。此外，具有使用状态管理单元（608）的用户终端（110）具有使用状态管理单元（608），其指定许可费用元素（每个消耗元素在正在重放的元素中消耗权利下的授权量），并且测量所使用的内容通过重播指定的许可费用元素消耗的时间（504）。

4. 发明申请

US20060129495A1 Digital content reproducing apparatus and method thereof 有权
标题翻译：数字内容再现装置及其方法
公开(公告)号：US20060129495A1
公开(公告)日：2006-06-15
申请号：US10542362
申请日：2004-04-07
申请人： Ryuichi Okamoto , Susumu Kobayashi , Katsumi Tokuda
发明人： Ryuichi Okamoto , Susumu Kobayashi , Katsumi Tokuda
IPC分类号： G06Q99/00
CPC分类号： G06F21/10
摘要： The user terminal (110) is composed of the following: a license purchase unit (603) for obtaining a license (500) indicating a content usable time (502) of a content data (200) composed of a plurality of elements (203), each of which can be replayed individually; an availability judgment unit (604) for judging whether or not encrypted elements (203) included in the content data (200) are available, based on the content usable time (502) indicated in the obtained license (500); a replay/display unit (607) for replaying the encrypted elements judged as available; and a use status management unit (608) for specifying license-consuming elements, each of which consumes an authorized amount of replay under right, out of the elements that are being replayed, and measuring a content used time (504) consumed by replaying the specified license-consuming elements.
摘要翻译：用户终端（110）由以下组成：许可证购买单元（603），用于获取指示由多个元素（203）组成的内容数据（200）的内容可用时间（502）的许可证（500）每个都可以单独重播; 根据所获得的许可证（500）中指示的内容可用时间（502），判断所述内容数据（200）中包含的加密元素（203）是否可用的可用性判断单元（604）重播/显示单元（607），用于重放被判断为可用的加密元素; 以及使用状态管理单元（608），用于指定许可证消费元素，每个消费元素在正在被重放的元素中消耗正确的授权量，并且测量通过重播所消耗的内容使用时间（504）指定的许可费用元素。

5. 发明授权

US07571488B2 Rights management terminal, server apparatus and usage information collection system 有权
标题翻译：权利管理终端，服务器装置和使用信息收集系统
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。

6. 发明申请

US20070112681A1 Content distribution system, license distribution method and terminal device 审中-公开
标题翻译：内容分发系统，许可证分发方式和终端设备
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。

7. 发明授权

US09106797B2 Content reproducing device and content reproducing method 有权
标题翻译：内容再现装置和内容再现方法
公开(公告)号：US09106797B2
公开(公告)日：2015-08-11
申请号：US13425605
申请日：2012-03-21
申请人： Ryuichi Okamoto , Tohru Nakahara , Kouji Miura , Masaya Yamamoto , Masaki Igarashi , Katsumi Tokuda
发明人： Ryuichi Okamoto , Tohru Nakahara , Kouji Miura , Masaya Yamamoto , Masaki Igarashi , Katsumi Tokuda
IPC分类号： H04N9/80 , H04N7/167 , H04N21/254 , H04N21/2543 , H04N21/426 , H04N21/4405 , H04N21/6334 , H04N21/8352 , H04N21/8355 , H04L9/08
CPC分类号： H04N7/1675 , G06F21/10 , H04L9/0894 , H04L2209/56 , H04L2209/603 , H04N21/2541 , H04N21/2543 , H04N21/42684 , H04N21/4405 , H04N21/6334 , H04N21/63345 , H04N21/8352 , H04N21/8355
摘要： When a secure counter malfunction detection unit 212 deters a malfunction in a secure counter 211, a content playability judgment unit 206 performs a content playability judgment based on information managed by a malfunctioning-state playback processing management unit 214. The malfunctioning-state playback processing management unit 214 stores a malfunctioning-state playback condition composed of information such as a playback count and a playback time. The content playability judgment unit 206 judges that content is playable when the malfunctioning-state playback condition is met, and a content playback unit 210 splays the content.
摘要翻译：当安全计数器故障检测单元212阻止安全计数器211中的故障时，内容可播放性判断单元206基于由故障状态重放处理管理单元214管理的信息执行内容可播放性判断。故障状态重放处理管理单元214存储由诸如重放次数和播放时间的信息组成的故障状态重放条件。当满足故障状态重放条件时，内容可播放性判断单元206判断内容可播放，并且内容重放单元210显示内容。

8. 发明授权

US08166555B2 Content reproducing device and content preproducing method 有权
标题翻译：内容再现装置和内容制作方法
公开(公告)号：US08166555B2
公开(公告)日：2012-04-24
申请号：US11660327
申请日：2005-08-19
申请人： Ryuichi Okamoto , Tohru Nakahara , Kouji Miura , Masaya Yamamoto , Masaki Igarashi , Katsumi Tokuda
发明人： Ryuichi Okamoto , Tohru Nakahara , Kouji Miura , Masaya Yamamoto , Masaki Igarashi , Katsumi Tokuda
IPC分类号： G06F7/04
CPC分类号： H04N7/1675 , G06F21/10 , H04L9/0894 , H04L2209/56 , H04L2209/603 , H04N21/2541 , H04N21/2543 , H04N21/42684 , H04N21/4405 , H04N21/6334 , H04N21/63345 , H04N21/8352 , H04N21/8355
摘要： When a secure counter malfunction detection unit 212 deters a malfunction in a secure counter 211, a content playability judgment unit 206 performs a content playability judgment based on information managed by a malfunctioning-state playback processing management unit 214. The malfunctioning-state playback processing management unit 214 stores a malfunctioning-state playback condition composed of information such as a playback count and a playback time. The content playability judgment unit 206 judges that content is playable when the malfunctioning-state playback condition is met, and a content playback unit 210 splays the content.
摘要翻译：当安全计数器故障检测单元212阻止安全计数器211中的故障时，内容可播放性判断单元206基于由故障状态重放处理管理单元214管理的信息执行内容可播放性判断。故障状态重放处理管理单元214存储由诸如重放次数和播放时间的信息组成的故障状态重放条件。当满足故障状态重放条件时，内容可播放性判断单元206判断内容可播放，并且内容重放单元210显示内容。

9. 发明授权

US07984508B2 Contents using device, and contents using method 有权
标题翻译：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。

10. 发明授权

US07721088B2 Terminal device, server device, and content distribution system 有权
标题翻译：终端设备，服务器设备和内容分发系统
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。

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