公开(公告)号：EP2169910A1

公开(公告)日：2010-03-31

申请号：EP09164853.5

申请日：2009-07-08

申请人： Fujitsu Limited

发明人： Sakakihara, Hironori ,  Hasegawa, Eiji ,  Honda, Fumio

IPC分类号： H04L29/08 ,  H04L29/06

CPC分类号： H04L67/104 ,  H04L67/1076

摘要： A technique for maintaining availability of content for distribution in a P2P system. An information processor (2) is connectable to a communication system (1) containing a plurality of terminal devices (3a, 3b, 3c). The information processor (2) receives content holding terminal information for identifying a terminal device holding a specific item of content, calculates a content holding terminal number corresponding to the number of terminal devices holding the content on the basis of the received content holding terminal information, holds a determination reference serving as a reference for determining whether the content holding terminal number is below a predetermined threshold value, determines on the basis of the content holding terminal number calculated by the terminal number calculator and the determination reference whether the content holding terminal number concerned is below the predetermined threshold value, and transmits an extinction preventing instruction for making the terminal device holding the content concerned execute processing for preventing extinction of the content when determining that the content holding terminal number is below the predetermined threshold value.

摘要翻译： 一种用于维护P2P系统中分发内容可用性的技术。 信息处理器（2）可连接到包含多个终端设备（3a，3b，3c）的通信系统（1）。 信息处理器（2）接收用于识别保持特定内容的终端装置的内容保持终端信息，基于接收到的内容保持终端信息，计算与保持内容的终端装置的数量相对应的内容保持终端号码， 保存作为用于确定内容保持终端号码是否低于预定阈值的参考的确定参考，基于由终端号码计算器计算的内容保持终端号码和确定参考来确定所涉及的内容保持终端号码 并且当确定内容保持终端数量低于预定阈值时，发送用于使保持有关内容的终端设备执行用于防止内容消失的处理的防止消除指令。

公开(公告)号：EP3709264A1

公开(公告)日：2020-09-16

申请号：EP20159773.9

申请日：2020-02-27

申请人： FUJITSU LIMITED

发明人： Hasegawa, Eiji

IPC分类号： G06T7/00

摘要： An information processing apparatus includes: a storage unit that stores data of a plurality of images captured of a structure at positions changed relative to the structure and data of a three-dimensional model indicating a three-dimensional shape of the structure; and a processing unit that selects an image containing the largest image of a damaged portion in the structure as a first accumulated image to be accumulated from images in each of which the damaged portion is imaged among the plurality of images, and performs a selection process of selecting two or more second accumulated images to be accumulated from among the plurality of images except the first accumulated image such that regarding an imaging range that is not covered by the first accumulated image in the three-dimensional model, an imaging range which overlaps between a plurality of the second accumulated images is reduced, and a coverage ratio of the imaging range in the three-dimensional model with the selected two or more second accumulated images and the first accumulated image is equal to or more than a predetermined value.

公开(公告)号：EP1940054A2

公开(公告)日：2008-07-02

申请号：EP07121451.4

申请日：2007-11-23

申请人： FUJITSU LIMITED

发明人： Hasegawa, Eiji ,  Nisiguchi, Naoki

IPC分类号： H04H20/40 ,  H04H60/27

CPC分类号： H04H60/11 ,  H04H20/08 ,  H04H20/22 ,  H04H20/24 ,  H04H20/40

摘要： In a system for receiving and storing broadcast content data, a reception and storage device (50) receives and stores a portion of broadcast content data in a storage unit (520), and then generates and stores a first piece of error check data for the data portion. The reception and storage device receives, from a further device (51, 31), a second piece of error check data for a portion of the broadcast content data corresponding to the data portion stored in the storage unit, compares the first piece of error check data with the second piece of error check data to determine whether the first piece of error check data is valid, receives, if the first piece of error check data is determined to be invalid, the corresponding data portion associated with the second piece of error check data, from another reception and storage device (31), and corrects the stored data portion in the storage unit based on the received corresponding data portion.

摘要翻译： 在用于接收并存储广播的内容数据，接收和存储装置（50）的系统接收并存储在存储单元（520）的广播的内容数据的部分，然后生成率，并存储第一块的错误校验数据的 数据部分。 的接收和存储装置接收来自另一装置（51，31），用于广播内容的数据对应于存储在存储单元中的数据部分的一部分的第二片错误校验数据，比较第一片错误检查的 与第二片确定性矿错误校验数据是否错误校验数据的第一个片是有效的，可以接收，如果错误校验数据的第一块是确定性的开采是无效的，与所述第二片错误检查的相关联的相应数据部分中的数据 数据，从另一个接收和存储装置（31），并校正基于所接收的数据对应的部分的存储单元所存储的数据部分。

公开(公告)号：EP1940054A3

公开(公告)日：2009-10-14

申请号：EP07121451.4

申请日：2007-11-23

申请人： FUJITSU LIMITED

发明人： Hasegawa, Eiji ,  Nisiguchi, Naoki

IPC分类号： H04H20/40 ,  H04H60/27 ,  H04H20/24 ,  H04H20/22

CPC分类号： H04H60/11 ,  H04H20/08 ,  H04H20/22 ,  H04H20/24 ,  H04H20/40

摘要： In a system for receiving and storing broadcast content data, a reception and storage device (50) receives and stores a portion of broadcast content data in a storage unit (520), and then generates and stores a first piece of error check data for the data portion. The reception and storage device receives, from a further device (51, 31), a second piece of error check data for a portion of the broadcast content data corresponding to the data portion stored in the storage unit, compares the first piece of error check data with the second piece of error check data to determine whether the first piece of error check data is valid, receives, if the first piece of error check data is determined to be invalid, the corresponding data portion associated with the second piece of error check data, from another reception and storage device (31), and corrects the stored data portion in the storage unit based on the received corresponding data portion.

公开(公告)号：EP1906332A3

公开(公告)日：2009-07-08

申请号：EP07113835.8

申请日：2007-08-06

申请人： FUJITSU LIMITED

发明人： Nishiguchi, Naoki ,  Hasegawa, Eiji

IPC分类号： G06F21/00

CPC分类号： G06F21/80 ,  G06F21/10 ,  G06F21/602 ,  G06F21/72 ,  G06F2221/0755 ,  G06F2221/0784 ,  H04L9/0822 ,  H04L9/0877 ,  H04L9/0897 ,  H04L2209/60

摘要： A secure device has an input unit for dividing content into a plurality of blocks and inputting the plurality of blocks, a key generating unit for sequentially generating keys for encrypting one or plural blocks,
a content encrypting unit for encrypting the one or plural blocks by using the generated key, a key information generating unit for generating key information for restoring the generated key used for the encrypting by the generated key, and a storage control unit for outputting contents of each of the blocks encrypted by the content encrypting unit and the key information generated by the key information generating unit to an external storage.
The key sequentially generated by the key generating unit is newly generated when a predetermined condition is satisfied, and varies by every one or plural blocks.

公开(公告)号：EP1906332A2

公开(公告)日：2008-04-02

申请号：EP07113835.8

申请日：2007-08-06

申请人： FUJITSU LIMITED

发明人： Nishiguchi, Naoki ,  Hasegawa, Eiji

IPC分类号： G06F21/00

CPC分类号： G06F21/80 ,  G06F21/10 ,  G06F21/602 ,  G06F21/72 ,  G06F2221/0755 ,  G06F2221/0784 ,  H04L9/0822 ,  H04L9/0877 ,  H04L9/0897 ,  H04L2209/60

摘要： A secure device has an input unit for dividing content into a plurality of blocks and inputting the plurality of blocks, a key generating unit for sequentially generating keys for encrypting one or plural blocks,
a content encrypting unit for encrypting the one or plural blocks by using the generated key, a key information generating unit for generating key information for restoring the generated key used for the encrypting by the generated key, and a storage control unit for outputting contents of each of the blocks encrypted by the content encrypting unit and the key information generated by the key information generating unit to an external storage.
The key sequentially generated by the key generating unit is newly generated when a predetermined condition is satisfied, and varies by every one or plural blocks.

摘要翻译： 安全装置具有用于将内容分割成多个块并输入多个块的输入单元，用于顺序地生成用于加密一个或多个块的密钥的密钥生成单元，通过使用用于加密一个或多个块的内容加密单元 所生成的密钥，用于生成用于恢复由所生成的密钥进行加密的生成密钥的密钥信息的密钥信息生成单元，以及用于输出由内容加密单元加密的每个块的内容的密码信息和密钥信息 由密钥信息生成单元生成到外部存储器。 当满足预定条件时，由密钥生成单元顺序生成的密钥新生成，并且每一个或多个块变化。