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    • 1. 发明专利
    • Data distribution device, data reception device, data distribution program and data reception program
    • 数据分配设备,数据接收设备,数据分发程序和数据接收程序
    • JP2011091494A
    • 2011-05-06
    • JP2009241441
    • 2009-10-20
    • Nippon Hoso Kyokai 日本放送協会
    • YAMAMURA CHIGUSAOGAWA KAZUTOOTAKE TAKESHIFUJISAWA TOSHIYUKI
    • H04L9/08G06F21/24G09C1/00
    • PROBLEM TO BE SOLVED: To provide a technique capable of detecting alteration of associated non-encrypted data from encrypted data and makes normal decryption of encrypted data disabled when tampering is recognized. SOLUTION: A data distribution device 2 receives input data A and non-encrypted data B and uses a hash value calculated from the non-encrypted data B to perform block encryption processing of the input data A, and distributes encrypted data E(A) and the non-encrypted data B. The data distribution device includes: a data compression means 21, which uses a hash function to calculate a hash value from the non-encrypted data B; a block encryption processing means 22, which takes the hash value as an initial vector and subjects the input data A to block encryption processing, in a preliminarily determined use mode to generate encrypted data E(A); and a data distribution means 23, which multiplexes the encrypted data E(A) generated by the block encryption processing means and the non-encrypted data B to distribute a header, the non-encrypted data B, and the encrypted data E(A). COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种能够从加密数据检测相关联的未加密数据的改变的技术,并且在识别到篡改时使得加密数据的正常解密被禁用。 解决方案:数据分配装置2接收输入数据A和非加密数据B,并使用从非加密数据B计算出的散列值进行输入数据A的块加密处理,并分配加密数据E( A)和非加密数据B.数据分配装置包括:数据压缩装置21,其使用散列函数从未加密数据B计算哈希值; 以预先确定的使用模式将哈希值作为初始向量并使输入数据A阻止加密处理的块加密处理装置22生成加密数据E(A); 以及数据分配装置23,其将由块加密处理装置产生的加密数据E(A)和非加密数据B进行多路复用以分发报头,未加密数据B和加密数据E(A) 。 版权所有(C)2011,JPO&INPIT
    • 2. 发明专利
    • Authentication method and system in handover between terminals
    • 终端之间切换的认证方法和系统
    • JP2010161447A
    • 2010-07-22
    • JP2009000648
    • 2009-01-06
    • Kddi CorpKddi株式会社Nippon Hoso Kyokai 日本放送協会
    • FUJISAWA TOSHIYUKIINAMURA KATSUKITANAKA TOSHIAKI
    • H04L9/08H04W12/04H04W12/08H04W36/14
    • PROBLEM TO BE SOLVED: To provide an authentication method, etc. which execute terminal authentication, network authentication, and service authentication using a little sequence, and improve anonymity of the terminals for handover between terminals through different networks. SOLUTION: In the authentication method, a hash value h (A2¾¾Ks2) created by the first terminal based on an address A2 of the first terminal and an encryption key Ks2, is commonly used by a first access gateway, a second access gateway, and a contents distribution server. The contents distribution server creates a first partial encryption key Kc2-a and a second partial encryption key Kc2-b from an update encryption key Kc2, transmits the first partial encryption key Kc2-a to the first terminal through the first access gateway, and transmits the second partial encryption key Kc2-b to the second terminal through the second access gateway. The first terminal transfers the first partial encryption key Kc2-a to the second terminal, and the second terminal restores the update encryption key Kc2 from the first partial encryption key Kc2-a and the second partial encryption key Kc2-b. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供使用少量序列执行终端认证,网络认证和服务认证的认证方法等,并且通过不同的网络提高终端之间的切换的匿名性。 解决方案:在认证方法中,基于第一终端的地址A2和加密密钥Ks2由第一终端创建的散列值h(A2¾¾Ks2)被第一接入网关,第二接入网关 ,以及内容分发服务器。 内容分发服务器从更新加密密钥Kc2创建第一部分加密密钥Kc2-a和第二部分加密密钥Kc2-b,通过第一访问网关将第一部分加密密钥Kc2-a发送到第一终端,并且发送 第二部分加密密钥Kc2-b通过第二接入网关发送到第二终端。 第一终端将第一部分加密密钥Kc2-a传送到第二终端,第二终端从第一部分加密密钥Kc2-a和第二部分加密密钥Kc2-b恢复更新加密密钥Kc2。 版权所有(C)2010,JPO&INPIT
    • 3. 发明专利
    • Mobile terminal and wireless network system
    • 移动终端和无线网络系统
    • JP2009246433A
    • 2009-10-22
    • JP2008087342
    • 2008-03-28
    • Kddi CorpKddi株式会社Nippon Hoso Kyokai 日本放送協会
    • FUJISAWA TOSHIYUKIINAMURA KATSUKITANAKA TOSHIAKI
    • H04W52/02H04M1/73H04M11/00H04W48/18H04W88/06H04W88/10
    • Y02D70/00Y02D70/14
    • PROBLEM TO BE SOLVED: To suppress the power consumption of a mobile terminal which includes a communication interface (an interface is called an IF, hereafter) for a cellular network and a communication IF for at least one local network and is connectable to the cellular network having a prescribed communication area and at least one local network having a communication area narrower than the communication area of the cellular network within the communication area of the cellular network. SOLUTION: In the mobile terminal 2, a control part 403 for controlling a power supply part 402 for supplying power respectively to the communication IF 401a for the cellular network and the communication IFs for the local network (the communication IF 401b for a WMAN and the communication IF 401c for a WLAN) includes a data analysis part 403c for commanding a communication IF control part 403b to supply the power to the communication IF 401a for the cellular network when the notice of call generation is received by the communication IF for the local network while the mobile terminal 2 is connected to the local network. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了抑制包括用于蜂窝网络的通信接口(以下称为IF的接口)以及用于至少一个本地网络的通信IF的移动终端的功率消耗,并且可连接到 蜂窝网络具有规定的通信区域和至少一个本地网络,其具有比蜂窝网络的通信区域内的蜂窝网络的通信区域窄的通信区域。 解决方案:在移动终端2中,控制部分403用于控制分别向蜂窝网络的通信IF 401a供电的电源部分402和用于本地网络的通信IF(通信IF 401b用于 WMAN和用于WLAN的通信IF 401c)包括数据分析部分403c,用于当通信IF接收到呼叫生成通知时,命令通信IF控制部分403b向蜂窝网络的通信IF 401a供电, 本地网络,而移动终端2连接到本地网络。 版权所有(C)2010,JPO&INPIT
    • 4. 发明专利
    • Cas management apparatus, receiver, mobile terminal, pre-paid ticket issue apparatus, and cas license transfer method, and program
    • CAS管理装置,接收器,移动终端,预付费问题装置和CAS许可证转移方法和程序
    • JP2007214667A
    • 2007-08-23
    • JP2006029857
    • 2006-02-07
    • Kddi CorpKddi株式会社Nippon Hoso Kyokai 日本放送協会
    • INAMURA KATSUKITANAKA TOSHIAKIFUJISAWA TOSHIYUKIOGAWA KAZUTOKIMURA TAKESHI
    • G06Q30/06G06Q50/00G09C1/00H04N7/16H04N21/258H04N21/266H04N21/414H04N21/4185H04N21/462H04N21/81
    • PROBLEM TO BE SOLVED: To provide a CAS management apparatus, a receiver, a mobile terminal, a pre-paid ticket issue apparatus, and a CAS license transfer method and program whereby even a receiver at a visit place can view broadcast contents substantially viewable only by the receiver located at home by transferring the view license of the broadcast contents possessed by the receiver located at home to the receiver at the visit place. SOLUTION: When a broadcast contents view request reception section 321 receives a broadcast contents view request from an electronic mobile terminal 301, a broadcast contents provision request section 322 requests a broadcast contents providing agency 304 to provide the broadcast contents. When a CAS license reception section 323 receives the CAS license (view license of the broadcast contents) from the electronic mobile terminal 301, a CAS license acquisition notice transmission section 324 transmits information about a result of the acquisition of the CAS license to a CAS administration agency 303. A broadcast contents reception section 325 receives the broadcast contents provided from the broadcast contents providing agency 304. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种CAS管理装置,接收机,移动终端,预付票发行装置和CAS许可证转移方法和程序,借此即使访问地的接收机也可以观看广播内容 仅通过位于家中的接收机将位于家中的接收机所拥有的广播内容的查看许可证传送到访问地点的接收机基本可见。 解决方案:当广播内容查看请求接收部分321从电子移动终端301接收广播内容查看请求时,广播内容提供请求部分322请求广播内容提供代理304提供广播内容。 当CAS许可证接收部分323从电子移动终端301接收CAS许可证(广播内容的查看许可证)时,CAS许可证获取通知发送部分324将关于CAS许可证的获取结果的信息发送到CAS管理 广播内容接收部分325接收从广播内容提供机构304提供的广播内容。版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Server and program for providing content
    • 服务器和程序提供内容
    • JP2003030193A
    • 2003-01-31
    • JP2001210567
    • 2001-07-11
    • Nippon Hoso Kyokai 日本放送協会
    • NAKAGAWA TOSHIOAOKI KATSUNORIFUJISAWA TOSHIYUKIIZUMI YOSHINORI
    • G06F17/30G06F13/00H04N7/173H04N21/258H04N21/475
    • PROBLEM TO BE SOLVED: To change linked information included in contents to be provided to a user depending on personal information on the user, terminal information and a season, the day of the week, a time, etc., when the user browses information.
      SOLUTION: The user starts a Web browser, etc., and transmits a content request (command) from an input picture on the Web page of a content providing server 1. A content request part 111 records user information, etc., included in the content request in a user information DB 15, transmits the URL(uniform resource locator) of original contents included in the content request to an original content server 2 included in a content agent request, receives the original contents and performs the conversion processing of it. Furthermore, a linked information DB 14 is retrieved with the original contents, user information, etc., as retrieval keys and corresponding added linked information is taken out to be included in converted contents and a new URL is assigned to be transmitted to the user terminal 3.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:当用户浏览信息时,根据用户的个人信息,终端信息和季节,星期几,时间等来改变要提供给用户的内容中包括的链接信息。 解决方案:用户启动Web浏览器等,并从内容提供服务器1的网页上的输入图像发送内容请求(命令)。内容请求部分111记录包含在内容请求部分111中的用户信息等。 在用户信息DB15中的内容请求将包含在内容请求中的原始内容的URL(统一资源定位符)发送到包含在内容代理请求中的原始内容服务器2,接收原始内容并执行其转换处理。 此外,用原始内容,用户信息等检索链接信息DB 14作为检索关键字,并且取出相应的附加链接信息以包含在转换的内容中,并且分配新的URL以发送给用户终端 3。
    • 6. 发明专利
    • Receiver
    • 接收器
    • JP2010109413A
    • 2010-05-13
    • JP2008276423
    • 2008-10-28
    • Nippon Hoso Kyokai 日本放送協会
    • OMATA TOSHIYUKIFUJISAWA TOSHIYUKIFUJIZU SATOSHIIMAIZUMI HIROYUKI
    • H04H60/32H04H20/12H04H60/80H04H60/82H04L1/06H04N7/173H04N21/23H04N21/24H04N21/258
    • PROBLEM TO BE SOLVED: To provide a receiver that automatically determines causes of troubles in reception in the occurrence of the troubles in reception, and notifies trouble information without applying great loads to a trouble information gathering device. SOLUTION: The receiver 1 includes a reception abnormality determination means 31 for detecting abnormal reception states in broadcast to create reception abnormality detection information. The receiver 1 gathers the reception abnormality detection information from other receivers 1 registered in a list of receivers stored in a receiver list storage means 57 as a representative of a plurality of receivers 1 only when first detecting reception abnormality in the plurality of receivers 1, analyzes the trouble in reception by the reception abnormality determination means 31 to create the reception trouble information, and transmits reception trouble information to the trouble information gathering device by a communication information processing means 40. Also, the receiver 1 only transmits own reception abnormality detection information to request sources, namely other receivers 1, without exchanging the reception abnormality detection information with remaining receivers 1 when other receivers 1 request the reception abnormality detection information. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种在发生接收故障时自动确定接收故障的原因的接收机,并且在不向故障信息收集装置施加大量负载的情况下通知故障信息。 解决方案:接收机1包括用于检测广播中的异常接收状态以产生接收异常检测信息的接收异常确定装置31。 接收机1仅在第一次检测到多个接收机1中的接收异常时作为多个接收机1的代表而从存储在接收机列表存储装置57中的接收机列表中登记的其他接收机1收集接收异常检测信息,分析 由接收异常确定装置31接收到的故障以创建接收故障信息,并且通过通信信息处理装置40将接收故障信息发送到故障信息收集装置。此外,接收机1仅将自己的接收异常检测信息发送到 请求源,即其他接收机1,而当其他接收机1请求接收异常检测信息时,不与其余接收机1交换接收异常检测信息。 版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • Mobile communication network system, correspondent node, mobile node, home agent, and access gateway
    • 移动通信网络系统,相应的节点,移动节点,家庭代理和接入网关
    • JP2010103943A
    • 2010-05-06
    • JP2008275855
    • 2008-10-27
    • Kddi CorpKddi株式会社Nippon Hoso Kyokai 日本放送協会
    • FUJISAWA TOSHIYUKIINAMURA KATSUKITANAKA TOSHIAKI
    • H04W36/14H04L9/08H04L9/32H04W12/04H04W36/02H04W80/04
    • PROBLEM TO BE SOLVED: To achieve efficient processing for a hand-over of a network occurring as a mobile node moves while taking both network authentication and service authentication into consideration. SOLUTION: A correspondent node 31 transmits first divided data (Kc2-a) and second divided data (Kc2-b) generated by dividing a content key to the mobile node 10 through different networks before and after a hand-over of the mobile node 10 (S22 to S24). The mobile node 10 decrypts an encrypted content received from the correspondent node 31 using the content key restored from the first divided data (Kc2-a) and second divided data (Kc2-b) received from the correspondent node 31, and transmits the decrypting results to the correspondent node 31 (S25 to S28). The correspondent node 31 determines whether the content continues to be transmitted to the mobile node 10 according to the content decrypting results received from the mobile node 10 (S29). COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了实现在移动节点移动同时考虑网络认证和服务认证的同时切换的网络的有效处理。 解决方案:通信节点31通过不同的网络将内容密钥分割为移动节点10产生的第一划分数据(Kc2-a)和第二划分数据(Kc2-b) 移动节点10(S22〜S24)。 移动节点10使用从对应节点31接收到的第一分割数据(Kc2-a)和第二划分数据(Kc2-b)还原的内容密钥,解密从通信节点31接收的加密内容,并发送解密结果 到通信节点31(S25〜S28)。 通信节点31根据从移动节点10接收到的内容解密结果,确定内容是否继续发送到移动节点(S29)。 版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • Digital broadcast receiver
    • 数字广播接收机
    • JP2008312251A
    • 2008-12-25
    • JP2008215491
    • 2008-08-25
    • Mitsubishi Electric CorpNippon Hoso Kyokai 三菱電機株式会社日本放送協会
    • KURIOKA TATSUYANISHIMOTO TOMONARIFUJISAWA TOSHIYUKIMINAMI HIROKIUEHARA TOSHIHIROTAKEUCHI KOICHIMATSUO EIJI
    • H04N5/445H04N7/173
    • PROBLEM TO BE SOLVED: To present to a viewer program information relating to a stored program when storing a digital broadcast program.
      SOLUTION: Program data demodulated by a tuner 1 are input to a selection switch 10 and a data storage section 9, the data storage section 9 records the program data and a program information processing section 6 acquires service information data demultiplexed by a demultiplexing section 4, on the other hand, and stores program information about a program being stored at present in a program information storage section 11. When a user views a program, an electronic program guide constituted of program information of a program being stored or program information of a program being broadcast at present and a program scheduled to be broadcast in future is displayed on a television monitor 8 to be selected by the user, so that the user can select the program being stored, the program being broadcast at present or the program scheduled to be broadcast in future.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:当存储数字广播节目时,向观众节目呈现与存储节目有关的信息。 解决方案:由调谐器1解调的节目数据被输入到选择开关10和数据存储部分9,数据存储部分9记录节目数据,节目信息处理部分6获取通过解复用解复用的服务信息数据 另一方面,存储关于当前存储在节目信息存储部分11中的节目的节目信息。当用户观看节目时,由正在存储的节目的节目信息或节目信息构成的电子节目指南 目前正在广播的节目和将来被安排播放的节目被显示在电视监视器8上以被用户选择,使得用户可以选择正在存储的节目,当前正在广播的节目或节目 计划将来播出。 版权所有(C)2009,JPO&INPIT
    • 9. 发明专利
    • Encryption device, decryption device, and method for updating encryption key
    • 加密设备,分解设备和用于更新加密密钥的方法
    • JP2008067074A
    • 2008-03-21
    • JP2006243086
    • 2006-09-07
    • Nippon Hoso Kyokai 日本放送協会
    • FUJIZU SATOSHIOTAKE TAKESHIFUJISAWA TOSHIYUKIOGAWA KAZUTO
    • H04L9/08
    • PROBLEM TO BE SOLVED: To provide an encryption device capable of reducing a load on the processing of a server or a network compared with a conventional device, and to provide a decryption device, and an encryption key updating method. SOLUTION: A content distribution device 100 includes: a server device 110; the encryption device 120; and a transmission/reception device 130. The encryption device 120 include: a content encryption part 121 for encrypting a content; a latest session key storage part 122 for storing the latest session key Ks; a session key encryption part 123 for encrypting the session key Ks; a work key updating judgement part 124 for judging whether or not a work key Kw is updated; a latest work key storage part 125 for storing the latest work key Kw; an updating work key encryption part 126 for encrypting the updated work key Kw; a user classification updated work key encryption part 127 for encrypting the updated work key Kw by each user; and a user authentication part 128 for authenticating the users. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够减少与传统设备相比对服务器或网络的处理负荷的加密设备,并提供解密设备和加密密钥更新方法。 解决方案:内容分发设备100包括:服务器设备110; 加密装置120; 和发送/接收装置130.加密装置120包括:内容加密部分121,用于加密内容; 用于存储最新会话密钥Ks的最新会话密钥存储部分122; 用于加密会话密钥Ks的会话密钥加密部分123; 工作密钥更新判断部分124,用于判断工作密钥Kw是否被更新; 用于存储最新工作密钥Kw的最新工作密钥存储部分125; 更新工作密钥加密部分126,用于加密更新的工作密钥Kw; 用户分类更新工作密钥加密部分127,用于由每个用户加密更新的工作密钥Kw; 以及用于认证用户的用户认证部分128。 版权所有(C)2008,JPO&INPIT