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    • 4. 发明授权
    • Information processing apparatus and method, recording medium and program
    • 信息处理装置和方法,记录介质和程序
    • US08788818B2
    • 2014-07-22
    • US13410969
    • 2012-03-02
    • Takehiko NakanoHisato Shima
    • Takehiko NakanoHisato Shima
    • H04L9/32G06F17/00
    • H04L63/068H04L9/0841H04L9/0861H04L9/3242H04L9/3271H04L63/0272H04L63/061H04L63/08H04L63/083H04L63/0869H04L63/0876H04L63/107H04L2209/603
    • An electronic device that generates first authentication data; outputs a first response request generated based on the first authentication data; receives a first response message based on the first response request command, the first response message including second authentication data based on the first authentication data; outputs a second response request command after receiving the first response message; counts a time elapsed from transmitting the second response request; receives a second response message based on the second response request command, the second response message including third authentication data generated at the second electronic device based on the first authentication data; compares the third authentication data included in the second response message with expected authentication data generated by the electronic device based on the first authentication data; and judges if the second electronic device is authorized to use content data based on the comparison result and the counted time.
    • 一种生成第一认证数据的电子设备; 输出基于所述第一认证数据生成的第一响应请求; 基于所述第一响应请求命令接收第一响应消息,所述第一响应消息包括基于所述第一认证数据的第二认证数据; 在接收到第一响应消息之后输出第二响应请求命令; 计算从发送第二响应请求所经过的时间; 基于所述第二响应请求命令接收第二响应消息,所述第二响应消息包括基于所述第一认证数据在所述第二电子设备处生成的第三认证数据; 将包含在第二响应消息中的第三认证数据与基于第一认证数据的电子设备生成的预期认证数据进行比较; 并且基于比较结果和计数时间来判断第二电子设备是否被授权使用内容数据。
    • 7. 发明授权
    • Information communication system, transmitting apparatus, transmitting method, and computer program
    • 信息通信系统,发送装置,发送方法和计算机程序
    • US08107384B2
    • 2012-01-31
    • US10548642
    • 2004-11-15
    • Hisato ShimaTakehiko Nakano
    • Hisato ShimaTakehiko Nakano
    • H04L1/00
    • H04L47/10H04L12/2805H04L12/2834H04L12/2838H04L47/283H04L63/0492H04L63/10H04L2012/2841H04L2012/2849H04L2463/101
    • Transmission of contents from a transmitting apparatus to a plurality of receiving apparatuses is performed, while putting restrictions on a communication area and the number of receiving apparatuses in conformity with a definition of DTCP.In a case of a need to distribute literary works such as movies and the music within a single home network, while preventing the transmission of the literary works to other home networks, a degree of freedom in communication is raised in a case where a communication delay time is short so that a high possibility exists that the communication delay time falls within a specific range. Conversely, in a case where the communication delay time is long so that a low possibility exists that the communication delay time falls within the specific range, the degree of freedom in communication is lowered. Thus, it is allowable to implement a system that ensures a high barrier to unauthorized content distributions, and also, does not have any remarkable restrictions on a rightful home use.
    • 执行从发送装置到多个接收装置的内容的传输,同时对通信区域和与DTCP的定义一致的接收装置的数量进行限制。 在需要在单个家庭网络中分发电影和音乐等文学作品的同时,防止将文学作品传播到其他家庭网络的情况下,在通信延迟的情况下,提高了通信的自由度 时间短,因此存在通信延迟时间在特定范围内的高可能性。 相反,在通信延迟时间长的情况下,通信延迟时间落在特定范围内的可能性低的情况下,通信的自由度降低。 因此,可以实现确保对未经授权的内容分发的高度障碍的系统,并且对合法的家庭使用没有任何显着的限制。
    • 9. 发明授权
    • System, apparatus, method and computer program for transferring content
    • 用于传输内容的系统,设备,方法和计算机程序
    • US08074290B2
    • 2011-12-06
    • US11646465
    • 2006-12-28
    • Takehiko NakanoHisato Shima
    • Takehiko NakanoHisato Shima
    • G06F7/04
    • H04L63/0428H04L9/0844H04L63/0435H04L63/061H04L63/08H04L67/06H04L2209/603H04L2463/061H04L2463/101
    • A content transfer system for transferring content between a source device transmitting the content and a sink device receiving the content, includes a content specifying unit for specifying the content to be transferred between the source device and the sink device, an authentication unit for performing an authentication exchange key process between the source device and the sink device, a content transfer unit for performing a content transfer process by encrypting and transferring the content specified by the content specifying unit from the source device to the sink device using the key exchanged by the authentication unit, and a content transfer finalizing unit for performing a content transfer finalizing process by validating the content at the sink device and invalidating the original content at the source device in response to the end of the content transfer process performed by the content transfer unit, the content thus being moved from the source device to the sink device.
    • 一种用于在发送内容的源设备和接收内容的宿设备之间传送内容的内容传送系统包括用于指定在源设备和宿设备之间要传送的内容的内容指定单元,用于执行认证的认证单元 源设备和宿设备之间的交换密钥处理,内容传送单元,用于通过使用由认证单元交换的密钥将由内容指定单元指定的内容从源设备加密并传送到宿设备来执行内容传送处理 以及内容传送确定单元,用于响应于内容传送单元执行的内容传送处理结束,通过验证宿设备的内容并使源设备的原始内容无效来执行内容传送完成过程,内容 从而从源设备移动到宿设备。