公开(公告)号：US07539306B2

公开(公告)日：2009-05-26

申请号：US10649623

申请日：2003-08-28

申请人： Yuusaku Ohta ,  Hiroki Yamauchi ,  Masaya Miyazaki ,  Natsume Matsuzaki ,  Toshihisa Abe

发明人： Yuusaku Ohta ,  Hiroki Yamauchi ,  Masaya Miyazaki ,  Natsume Matsuzaki ,  Toshihisa Abe

IPC分类号： H04N7/167

CPC分类号： H04N21/43615 ,  G06F21/10 ,  G06F21/445 ,  G06F2221/2117 ,  G06F2221/2137 ,  G11B20/00086 ,  G11B20/00123 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/0084 ,  G11B20/00855

摘要： A key delivery apparatus that prevents improper use of contents, and manages a decryption key for decrypting encrypted content and a suppliable number showing how many times the decryption key is suppliable, with respect to one or more terminal apparatuses connected to a network. The key delivery apparatus receives a supply request for the decryption key from a terminal apparatus, and if the terminal apparatus is a legitimate supply target, judges whether the terminal apparatus is a first-type that manages a content-usage period or a second-type that does not manage the content-usage period, and if the suppliable number has a remaining number, supplies to the terminal apparatus, the decryption key and a key-usage period of the decryption key when judged that the terminal apparatus is the first-type and the decryption key when judged that the terminal apparatus is the second-type.

摘要翻译： 关于连接到网络的一个或多个终端装置，防止不正当使用内容的密钥传送装置，并且管理用于解密加密内容的解密密钥和显示解密密钥可供应多少次的可供应数量。 密钥传送装置从终端装置接收对解密密钥的供给请求，如果终端装置是合法供给对象，则判断终端装置是管理内容使用期间的第一种还是第二类型 不管理内容使用期间，如果可提供的号码具有剩余号码，则在判断为终端装置为第一类型时向终端装置提供解密密钥和解密密钥的密钥使用期间 以及当判断为终端装置是第二类型时的解密密钥。

公开(公告)号：US07188224B2

公开(公告)日：2007-03-06

申请号：US10649890

申请日：2003-08-28

申请人： Yuusaku Ohta ,  Hiroki Yamauchi ,  Masaya Miyazaki ,  Natsume Matsuzaki ,  Toshihisa Abe

发明人： Yuusaku Ohta ,  Hiroki Yamauchi ,  Masaya Miyazaki ,  Natsume Matsuzaki ,  Toshihisa Abe

IPC分类号： G06F12/14

CPC分类号： G06F21/10 ,  G11B20/00086 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00746 ,  G11B20/00804 ,  G11B20/0084 ,  G11B20/00855 ,  H04L29/06 ,  H04L67/306 ,  H04L69/329

摘要： A highly-convenient content duplication management system for allowing users to duplicate a content as long as the duplication is in compliance with a given usage right. In the system, a request destination device stores a content and a permitted number of duplications of the content. In response to a duplication request, the request destination device judges whether or not the request source device is an in-group device that belongs to the same group as the request destination device. When judging that the request source device is an in-group device, the request destination device transmits the content together with a permitted number that is equal to or smaller than the currently stored permitted number. The request destination device then updates the currently stored permitted number by subtracting the permitted number transmitted.

摘要翻译： 一种高度方便的内容复制管理系统，只要复制符合给定的使用权限，允许用户复制内容。 在系统中，请求目的地装置存储内容和允许的内容的重复次数。 响应于复制请求，请求目的地设备判断请求源设备是否属于与请求目的地设备相同组的组内设备。 当判断请求源设备是组内设备时，请求目的地设备与当前存储的允许号码等于或小于的允许号码一起发送内容。 然后，请求目的地装置通过减去发送的允许号码来更新当前存储的允许号码。

公开(公告)号：US07752433B2

公开(公告)日：2010-07-06

申请号：US10649624

申请日：2003-08-28

申请人： Hiroki Yamauchi ,  Yuusaku Ohta ,  Masaya Miyazaki ,  Natsume Matsuzaki ,  Toshihisa Abe

发明人： Hiroki Yamauchi ,  Yuusaku Ohta ,  Masaya Miyazaki ,  Natsume Matsuzaki ,  Toshihisa Abe

IPC分类号： H04L29/06

CPC分类号： G11B20/0021 ,  G06F21/10 ,  G06F2221/0706 ,  G06F2221/2111 ,  G11B20/00086 ,  G11B20/00195 ,  G11B20/00224 ,  G11B20/00804 ,  G11B20/0084 ,  H04N21/43615

摘要： A content management system formed from a playback apparatus that requests and plays content, and a content management apparatus that manages duplication and deletion of content. The playback apparatus notifies group information of the playback apparatus to the content management apparatus, acquires information from the content management apparatus showing whether requests are permitted, and duplicates/deletes content. By judging whether the playback apparatus belongs to a group, and notifying whether a duplication request is permitted or rejected, based on in-group and out-group remaining numbers that show the remaining number of duplications permitted of apparatuses in-group and out-group, respectively, the content management apparatus relaxes restrictions on in-group content duplication as compared with out-group content duplication, and thus improves convenience for users in a home network, while protecting the rights of copyright holders, with respect to content duplication and usage.

摘要翻译： 由请求和播放内容的播放装置形成的内容管理系统以及管理内容的复制和删除的内容管理装置。 回放装置向内容管理装置通知播放装置的组信息，从内容管理装置获取表示是否允许请求的信息，并且复制/删除内容。 通过判断播放装置是否属于一个组，并且基于组内和组外剩余的数字来通知复制请求是否被允许或拒绝，所述剩余数字表示组内和组外的设备允许的剩余重复次数 内容管理装置与组外内容复制相比，放松了组内内容复制的限制，从而提高了家庭网络用户的便利性，同时在保护版权持有人的权利方面相对于内容复制和使用 。

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。

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。

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。

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。

公开(公告)号：US20070294534A1

公开(公告)日：2007-12-20

申请号：US11790399

申请日：2007-04-25

申请人： Rieko Asai ,  Yukie Shoda ,  Teruto Hirota ,  Yoshikatsu Ito ,  Taichi Sato ,  Hideki Matsushima ,  Toshihisa Abe

发明人： Rieko Asai ,  Yukie Shoda ,  Teruto Hirota ,  Yoshikatsu Ito ,  Taichi Sato ,  Hideki Matsushima ,  Toshihisa Abe

IPC分类号： G06F9/24

CPC分类号： G06F21/14 ,  G06F21/6218 ,  G06F21/6281

摘要： An encrypted-data decrypting apparatus that provides enhanced security protection for programs and data while they are in the processes of decryption to execution after having been encrypted. When a decrypted partial program needs to be loaded into the shared memory M, the controlling unit 11 loads it into an area indicated by the memory location information. According to the memory location information, a plurality of partial programs are sequentially loaded into an area so that one partial program gets overwritten by another; therefore, none of the partial programs exists in the memory for a long time, and thus there is less possibility of having the partial programs referred to illegitimately. In addition, since every time some data is decrypted, the decryption support program authenticating unit 13 confirms authenticity of the decryption support program P, it is possible to prevent having illegitimate references in which the decryption support program is abused.

公开(公告)号：US06778756B1

公开(公告)日：2004-08-17

申请号：US09598751

申请日：2000-06-22

申请人： Kazuya Fujimura ,  Tetsuyuki Nakayasu ,  Toshihisa Abe ,  Souichirou Fujioka

发明人： Kazuya Fujimura ,  Tetsuyuki Nakayasu ,  Toshihisa Abe ,  Souichirou Fujioka

IPC分类号： H04N576

CPC分类号： H04N5/9201 ,  H04N5/765

摘要： A countdown audio generation apparatus comprises a reproduction unit for reproducing a video signal and time information between which predetermined synchronization is maintained; a video output unit for outputting the video signal reproduced by the reproduction unit; a countdown audio generation unit for generating a countdown audio signal which informs that the time information reproduced by the reproduction unit reaches a predetermined countdown end time; and an audio output unit for outputting the countdown audio signal generated by the countdown audio generation unit. Therefore, the user of this apparatus can know the predetermined countdown end time by the countdown audio.

摘要翻译： 倒计时音频产生装置包括用于再现视频信号的再现单元和保持预定同步的时间信息; 视频输出单元，用于输出由再现单元再现的视频信号; 倒计时音频产生单元，用于产生倒数音频信号，通知由再现单元再现的时间信息达到预定的倒计时结束时间; 以及音频输出单元，用于输出由倒计时音频产生单元产生的倒计时音频信号。 因此，该装置的用户可以通过倒计时音频知道预定的倒计时结束时间。

公开(公告)号：US08793204B2

公开(公告)日：2014-07-29

申请号：US13498396

申请日：2011-09-26

申请人： Iku Ohama ,  Toshihisa Abe ,  Hiroki Arimura ,  Takuya Kida

发明人： Iku Ohama ,  Toshihisa Abe ,  Hiroki Arimura ,  Takuya Kida

IPC分类号： G06F15/18 ,  G06N5/02 ,  G06K9/62 ,  G06K9/00

CPC分类号： G06N5/025 ,  G06F15/18 ,  G06K9/00335 ,  G06K9/6297

摘要： Provided is a classification device capable of classifying time series data of location information into groups in which continuity of time is secured. The classification device (100) includes a data storage unit (110) that stores time-of-day information and location information corresponding to the time-of-day information, a sorting unit (120) that sorts the location information in order of time using the time-of-day information, a hidden Markov model storage unit (130) storing therein a left-to-right hidden Markov model containing a plurality of states and in which a parameter is undetermined, a Markov model output unit (140) that determines the parameter by inputting the location information sorted in order of time into the hidden Markov model, and a classification unit (150) that classifies each location information in one of the plurality of states by inputting the location information sorted in order of time into the hidden Markov model containing the determined parameter.

摘要翻译： 提供了能够将位置信息的时间序列数据分类成保持连续性的组的分类装置。 分类装置（100）包括：数据存储单元（110），其存储与日时信息对应的时刻信息和位置信息;分类单元（120），其按照时间顺序排列位置信息 使用时间信息，隐藏的马尔可夫模型存储单元（130），其存储包含多个状态并且其中未确定参数的从左到右隐马尔可夫模型，马尔科夫模型输出单元（140） 通过将按照时间顺序排列的位置信息输入到隐马尔可夫模型中来确定参数;以及分类单元（150），其通过将按照时间顺序排列的位置信息输入到多个状态中的一个状态中的每个位置信息 包含确定参数的隐马尔科夫模型。