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1. 发明授权

US07933409B2 Content playback device 有权
标题翻译：内容播放设备
公开(公告)号：US07933409B2
公开(公告)日：2011-04-26
申请号：US10590909
申请日：2005-03-01
申请人： Masaya Yamamoto , Toshihisa Nakano , Motoji Ohmori , Masayuki Kozuka
发明人： Masaya Yamamoto , Toshihisa Nakano , Motoji Ohmori , Masayuki Kozuka
IPC分类号： H04N7/167 , H04L9/00 , G06F11/30
CPC分类号： G11B20/0021 , G11B20/00086 , G11B20/00181 , G11B20/00195 , G11B20/00224 , G11B20/00253 , G11B20/00347 , G11B20/00492
摘要： To provide a content playback device capable of protecting content according to DRM, when decrypting encrypted content recorded on a recording medium and playing the decrypted content. If key generation information is “00”, a key control unit 104 concatenates a decrypted media key and content information in this order, and applies a one-way function to the concatenation result to generate a content key. If the key generation information is “10”, the key control unit 104 sets a rights key as the content key. If the key generation information is “01”, the key control unit 104 concatenates the decrypted media key and the rights key in this order, and applies a one-way function to the concatenation result to generate the content key.
摘要翻译：为了提供能够根据DRM保护内容的内容回放设备，当解密记录在记录介质上的加密内容并播放解密的内容时。如果密钥生成信息是“00”，则密钥控制单元104依次连接解密的媒体密钥和内容信息，并且向连接结果应用单向函数以生成内容密钥。如果密钥生成信息是“10”，则密钥控制单元104设置权限密钥作为内容密钥。如果密钥生成信息为“01”，则密钥控制单元104依次连接解密的媒体密钥和权限密钥，并将单向功能应用于连接结果以生成内容密钥。

2. 发明授权

US08116452B2 Content playback device 有权
标题翻译：内容播放设备
公开(公告)号：US08116452B2
公开(公告)日：2012-02-14
申请号：US13009459
申请日：2011-01-19
申请人： Masaya Yamamoto , Toshihisa Nakano , Motoji Ohmori , Masayuki Kozuka
发明人： Masaya Yamamoto , Toshihisa Nakano , Motoji Ohmori , Masayuki Kozuka
IPC分类号： H04N7/167 , H04L9/00 , G06F11/30
CPC分类号： G11B20/0021 , G11B20/00086 , G11B20/00181 , G11B20/00195 , G11B20/00224 , G11B20/00253 , G11B20/00347 , G11B20/00492
摘要： To provide a content playback device capable of protecting content according to DRM, when decrypting encrypted content recorded on a recording medium and playing the decrypted content. If key generation information is “00”, a key control unit 104 concatenates a decrypted media key and content information in this order, and applies a one-way function to the concatenation result to generate a content key. If the key generation information is “10”, the key control unit 104 sets a rights key as the content key. If the key generation information is “01”, the key control unit 104 concatenates the decrypted media key and the rights key in this order, and applies a one-way function to the concatenation result to generate the content key.
摘要翻译：为了提供能够根据DRM保护内容的内容回放设备，当解密记录在记录介质上的加密内容并播放解密的内容时。如果密钥生成信息是“00”，则密钥控制单元104依次连接解密的媒体密钥和内容信息，并且向连接结果应用单向函数以生成内容密钥。如果密钥生成信息是“10”，则密钥控制单元104设置权限密钥作为内容密钥。如果密钥生成信息为“01”，则密钥控制单元104依次连接解密的媒体密钥和权限密钥，并将单向功能应用于连接结果以生成内容密钥。

3. 发明申请

US20070198424A1 Content playback device 有权
标题翻译：内容播放设备
公开(公告)号：US20070198424A1
公开(公告)日：2007-08-23
申请号：US10590909
申请日：2005-03-01
申请人： Masaya Yamamoto , Toshihisa Nakano , Motoji Ohmori , Masayuki Kozuka
发明人： Masaya Yamamoto , Toshihisa Nakano , Motoji Ohmori , Masayuki Kozuka
IPC分类号： H04L9/00
CPC分类号： G11B20/0021 , G11B20/00086 , G11B20/00181 , G11B20/00195 , G11B20/00224 , G11B20/00253 , G11B20/00347 , G11B20/00492
摘要： To provide a content playback device capable of protecting content according to DRM, when decrypting encrypted content recorded on a recording medium and playing the decrypted content. If key generation information is “00”, a key control unit 104 concatenates a decrypted media key and content information in this order, and applies a one-way function to the concatenation result to generate a content key. If the key generation information is “10”, the key control unit 104 sets a rights key as the content key. If the key generation information is “01”, the key control unit 104 concatenates the decrypted media key and the rights key in this order, and applies a one-way function to the concatenation result to generate the content key.
摘要翻译：为了提供能够根据DRM保护内容的内容回放设备，当解密记录在记录介质上的加密内容并播放解密的内容时。如果密钥生成信息是“00”，则密钥控制单元104依次连接解密的媒体密钥和内容信息，并且向连接结果应用单向函数以生成内容密钥。如果密钥生成信息是“10”，则密钥控制单元104设置权限密钥作为内容密钥。如果密钥生成信息为“01”，则密钥控制单元104依次连接解密的媒体密钥和权限密钥，并将单向功能应用于连接结果以生成内容密钥。

4. 发明授权

US08997216B2 Recording medium apparatus and control method for authenticating a device based on a revocation list 有权
标题翻译：用于基于撤销列表认证设备的记录介质设备和控制方法
公开(公告)号：US08997216B2
公开(公告)日：2015-03-31
申请号：US13817045
申请日：2012-04-18
申请人： Masayuki Kozuka , Takahiro Yamaguchi , Toshihisa Nakano , Masataka Minami , Makoto Morise , Kaoru Murase , Motoji Ohmori
发明人： Masayuki Kozuka , Takahiro Yamaguchi , Toshihisa Nakano , Masataka Minami , Makoto Morise , Kaoru Murase , Motoji Ohmori
IPC分类号： H04L29/12 , G06F21/60 , H04L9/08 , H04L9/32 , G11B20/00 , H04L29/02
CPC分类号： G06F21/60 , G11B20/00086 , G11B20/00195 , G11B20/0021 , G11B20/00528 , H04L9/08 , H04L9/3263 , H04L9/3268 , H04L2209/16 , H04L2209/60
摘要： A storage unit 601g of a recording medium device 600g stores a content and a revocation list. The revocation list includes a revocation identifier that is associated with the content and identifies a revoked public key certificate allocated to an apparatus related to use of the content. A controller 602g of the recording medium device 600g is provided with an acquisition unit 621g that acquires, from an apparatus 300g, an acquisition request for the content and an apparatus identifier identifying a public key certificate of the apparatus 300g; a judgment unit 622g that judges whether the apparatus identifier matches a revocation identifier; and a control unit 623g that controls to prohibit output of the content to the apparatus when the apparatus identifier and the revocation identifier match.
摘要翻译：记录介质装置600g的存储单元601g存储内容和撤销列表。撤销列表包括与内容相关联的撤销标识符，并且识别分配给与使用该内容相关的设备的已撤销公钥证书。记录介质装置600g的控制器602g设置有从装置300g获取对内容的获取请求和识别装置300g的公钥证书的装置标识符的获取单元621g; 判断单元622g，其判断设备标识符是否与撤销标识符匹配; 以及控制单元623g，其控制在设备标识符和撤销标识符匹配时禁止向设备输出内容。

5. 发明申请

US20130283357A1 CONTENT MANAGEMENT SYSTEM, MANAGEMENT SERVER, MEMORY MEDIA DEVICE AND CONTENT MANAGEMENT METHOD 有权
标题翻译：内容管理系统，管理服务器，内存媒体设备和内容管理方法
公开(公告)号：US20130283357A1
公开(公告)日：2013-10-24
申请号：US13994960
申请日：2012-04-26
申请人： Masayuki Kozuka , Toshihisa Nakano , Takahiro Yamaguchi , Motoji Ohmori , Kaoru Murase , Masataka Minami , Makoto Morise
发明人： Masayuki Kozuka , Toshihisa Nakano , Takahiro Yamaguchi , Motoji Ohmori , Kaoru Murase , Masataka Minami , Makoto Morise
IPC分类号： H04L29/06
CPC分类号： H04L63/10 , G06F21/10 , G11B20/0021 , G11B20/00862 , G11B2220/2562
摘要： A terminal device 102 includes a transmission/reception unit 306 that transmits, to a server device 101, information necessary for judgment as to whether to permit use of content. The server device 101 includes: a judgment unit 204 that judges whether to permit the terminal device 102 to use the content, based on terminal device management information set by a content provider, and the information necessary for the judgment and received from the terminal device 102; a notification data storage unit 203 that stores notifications to be presented to a user of the terminal device 102; and a transmission/reception unit 205 that transmits either information necessary for use of the content or one of the notifications according to a result of the judgment by the judgment unit 204.
摘要翻译：终端设备102包括发送/接收单元306，其向服务器设备101发送关于是否允许使用内容的判断所需的信息。服务器装置101包括：判断部204，根据由内容提供者设定的终端装置管理信息，判断终端装置102是否允许使用内容;判断部204判定是否从终端装置102接收到的判断 ; 存储要呈现给终端装置102的用户的通知的通知数据存储单元203; 以及发送/接收单元205，其根据判断单元204的判断结果发送使用内容所需的信息或通知中的一个。

6. 发明申请

US20130145481A1 RECORDING MEDIUM APPARATUS AND CONTROLLER 有权
标题翻译：记录介质和控制器
公开(公告)号：US20130145481A1
公开(公告)日：2013-06-06
申请号：US13817045
申请日：2012-04-18
申请人： Masayuki Kozuka , Takahiro Yamaguchi , Toshihisa Nakano , Masataka Minami , Makoto Morise , Kaoru Murase , Motoji Ohmori
发明人： Masayuki Kozuka , Takahiro Yamaguchi , Toshihisa Nakano , Masataka Minami , Makoto Morise , Kaoru Murase , Motoji Ohmori
IPC分类号： G06F21/60
CPC分类号： G06F21/60 , G11B20/00086 , G11B20/00195 , G11B20/0021 , G11B20/00528 , H04L9/08 , H04L9/3263 , H04L9/3268 , H04L2209/16 , H04L2209/60
摘要： A storage unit 601g of a recording medium device 600g stores a content and a revocation list. The revocation list includes a revocation identifier that is associated with the content and identifies a revoked public key certificate allocated to an apparatus related to use of the content. A controller 602g of the recording medium device 600g is provided with an acquisition unit 621g that acquires, from an apparatus 300g, an acquisition request for the content and an apparatus identifier identifying a public key certificate of the apparatus 300g; a judgment unit 622g that judges whether the apparatus identifier matches a revocation identifier; and a control unit 623g that controls to prohibit output of the content to the apparatus when the apparatus identifier and the revocation identifier match.
摘要翻译：记录介质装置600g的存储单元601g存储内容和撤销列表。撤销列表包括与内容相关联的撤销标识符，并且识别分配给与使用该内容相关的设备的已撤销公钥证书。记录介质装置600g的控制器602g设置有从装置300g获取内容的获取请求和识别装置300g的公钥证书的装置标识符的获取单元621g; 判断单元622g，其判断设备标识符是否与撤销标识符匹配; 以及控制单元623g，其控制在设备标识符和撤销标识符匹配时禁止向设备输出内容。

7. 发明授权

US09178702B2 Revocation list generation device, revocation list generation method, and content management system 有权
标题翻译：撤销列表生成装置，撤销列表生成方法和内容管理系统
公开(公告)号：US09178702B2
公开(公告)日：2015-11-03
申请号：US13702137
申请日：2012-04-17
申请人： Masayuki Kozuka , Takahiro Yamaguchi , Toshihisa Nakano , Kaoru Murase , Motoji Ohmori , Makoto Morise , Masataka Minami
发明人： Masayuki Kozuka , Takahiro Yamaguchi , Toshihisa Nakano , Kaoru Murase , Motoji Ohmori , Makoto Morise , Masataka Minami
IPC分类号： H04L9/32 , H04L9/08 , H04L29/06
CPC分类号： H04L9/0891 , H04L9/3268 , H04L63/062 , H04L2463/101
摘要： Provided is a revocation list generation device that can suppress an increase in the amount of data of a revocation list. A revocation list generation device that generates a revocation list includes an acquisition unit that acquires, for a content, a revocation identifier identifying a revoked public key certificate allocated to an apparatus related to use of the content, a revocation list generation unit that generates a revocation list including the acquired revocation identifier associated with the content, and an output unit that outputs the revocation list.
摘要翻译：提供了可以抑制撤销列表的数据量的增加的撤销列表生成装置。生成撤销列表的撤销列表生成装置包括：获取单元，其针对内容获取识别分配给与使用该内容有关的装置的撤销的公开密钥证书的撤销标识符，生成撤销的撤销列表生成部列表，其包括与内容相关联的获取的撤销标识符，以及输出单元，其输出撤销列表。

8. 发明授权

US09166980B2 Content management system, management server, memory media device and content management method 有权
标题翻译：内容管理系统，管理服务器，存储媒体设备和内容管理方法
公开(公告)号：US09166980B2
公开(公告)日：2015-10-20
申请号：US13994960
申请日：2012-04-26
申请人： Masayuki Kozuka , Toshihisa Nakano , Takahiro Yamaguchi , Motoji Ohmori , Kaoru Murase , Masataka Minami , Makoto Morise
发明人： Masayuki Kozuka , Toshihisa Nakano , Takahiro Yamaguchi , Motoji Ohmori , Kaoru Murase , Masataka Minami , Makoto Morise
IPC分类号： H04L29/06 , G06F21/10 , G11B20/00
CPC分类号： H04L63/10 , G06F21/10 , G11B20/0021 , G11B20/00862 , G11B2220/2562
摘要： A terminal device includes a transmission/reception unit that transmits, to a server device, information necessary for judgment as to whether to permit use of content. The server device includes a judgment unit that judges whether to permit the terminal device to use the content, based on terminal device management information set by a content provider, and the information necessary for the judgment and received from the terminal device. A notification data storage unit stores notifications to be presented to a user of the terminal device; and a transmission/reception unit transmits either information necessary for use of the content or one of the notifications according to a result of the judgment by the judgment unit.
摘要翻译：终端装置包括发送/接收单元，其向服务器装置发送关于是否允许使用内容的判断所必需的信息。服务器装置包括：判断单元，基于由内容提供者设定的终端设备管理信息，判断终端装置是否允许使用内容，以及判断终端装置接收到的信息。通知数据存储单元存储要呈现给终端设备的用户的通知; 并且发送/接收单元根据判断单元的判断结果发送使用内容所需的信息或通知中的一个。

9. 发明申请

US20130077791A1 REVOCATION LIST GENERATION DEVICE, REVOCATION LIST GENERATION METHOD, AND CONTENT MANAGEMENT SYSTEM 有权
标题翻译：撤销清单生成装置，撤销清单生成方法和内容管理系统
公开(公告)号：US20130077791A1
公开(公告)日：2013-03-28
申请号：US13702137
申请日：2012-04-17
申请人： Masayuki Kozuka , Takahiro Yamaguchi , Toshihisa Nakano , Kaoru Murase , Motoji Ohmori , Makoto Morise , Masataka Minami
发明人： Masayuki Kozuka , Takahiro Yamaguchi , Toshihisa Nakano , Kaoru Murase , Motoji Ohmori , Makoto Morise , Masataka Minami
IPC分类号： H04L9/08
CPC分类号： H04L9/0891 , H04L9/3268 , H04L63/062 , H04L2463/101
摘要： Provided is a revocation list generation device that can suppress an increase in the amount of data of a revocation list. A revocation list generation device 500g that generates a revocation list includes an acquisition unit 501g that acquires, for a content, a revocation identifier identifying a revoked public key certificate allocated to an apparatus related to use of the content, a revocation list generation unit 502g that generates a revocation list including the acquired revocation identifier associated with the content, and an output unit 503g that outputs the revocation list.
摘要翻译：提供了可以抑制撤销列表的数据量的增加的撤销列表生成装置。生成撤销列表的撤销列表生成装置500g包括获取单元501g，对于内容，获取识别分配给与使用该内容有关的装置的撤销公钥证书的撤销标识符，撤销列表生成部502g，生成包括与内容相关联的获取的吊销标识符的撤销列表，以及输出撤销列表的输出单元503g。

10. 发明授权

US08428435B2 Content use device and recording medium 有权
标题翻译：内容使用装置和记录介质
公开(公告)号：US08428435B2
公开(公告)日：2013-04-23
申请号：US12796077
申请日：2010-06-08
申请人： Masaya Yamamoto , Toshihisa Nakano , Ryuichi Okamoto , Motoji Ohmori
发明人： Masaya Yamamoto , Toshihisa Nakano , Ryuichi Okamoto , Motoji Ohmori
IPC分类号： H04N9/80
CPC分类号： G11B20/00086 , G11B27/105
摘要： To provide a content playback device that can use content appropriately by avoiding output of content not permitted to be used according to contract information. A playback control unit 102 extracts a content name from playback control information in a playback path information table 210, and inquires of a rights management unit 108 whether content identified by the extracted content name is playable or not. If the content is judged as being unplayable, the playback control unit 102 extracts an alternative playback number from the playback control information, and extracts a content name from playback control information whose playback number matches the alternative playback number. The playback control unit 102 then instructs a decryption unit 103 and a playback unit 107 to decrypt and play back encrypted content identified by the extracted content name.
摘要翻译：提供可以通过避免根据合同信息输出不允许使用的内容来适当地使用内容的内容回放设备。回放控制部102从回放路径信息表210中的回放控制信息中提取内容名，并向权利管理部108询问由所提取的内容名称识别的内容是否可以播放。如果内容被判断为不可播放，则播放控制单元102从播放控制信息中提取备选重放号码，并且从播放数量与替代重放号码匹配的播放控制信息中提取内容名称。再现控制单元102然后指示解密单元103和重放单元107解密和重放由所提取的内容名称标识的加密内容。

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