Method for implementing DRM function and additional function using DRM device and system thereof
    3.
    发明申请
    Method for implementing DRM function and additional function using DRM device and system thereof 审中-公开
    使用DRM设备及其系统实现DRM功能和附加功能的方法

    公开(公告)号:US20080195864A1

    公开(公告)日:2008-08-14

    申请号:US11812876

    申请日:2007-06-22

    IPC分类号: H04L9/32 H04L9/12 H04L9/28

    CPC分类号: G06F21/10

    摘要: A digital rights management (DRM) function performing method and system using a DRM device are provided, in which a DRM device connected to a second communication device decodes encoded contents when a first communication device requests to play the contents, the DRM device re-encodes the contents using a session key, and the DRM device transmits the re-encoded contents to the first communication device via the second communication device.

    摘要翻译: 提供了使用DRM设备的数字版权管理(DRM)功能执行方法和系统,其中连接到第二通信设备的DRM设备在第一通信设备请求播放内容时解码编码的内容,DRM设备重新编码 所述内容使用会话密钥,并且所述DRM设备经由所述第二通信设备向所述第一通信设备发送所述重新编码的内容。

    Method and apparatus for successive data processing by information exchange
    4.
    发明申请
    Method and apparatus for successive data processing by information exchange 审中-公开
    通过信息交换连续进行数据处理的方法和装置

    公开(公告)号:US20080148263A1

    公开(公告)日:2008-06-19

    申请号:US11819229

    申请日:2007-06-26

    IPC分类号: G06F9/46

    CPC分类号: G06F9/54 G06F9/485

    摘要: A successive data processing method and apparatus is provided. A data processing apparatus, when connected to a data management apparatus, transmits apparatus information of the data processing apparatus, selects target process data, transmits target process information of the selected target process data, processes the target process data, and transmits process status information according to a process result of the target process data to the data management apparatus.

    摘要翻译: 提供了连续的数据处理方法和装置。 一种数据处理装置,当与数据管理装置连接时,发送数据处理装置的装置信息,选择目标处理数据,发送所选择的目标处理数据的目标处理信息,处理目标处理数据,并根据 涉及到数据管理装置的目标处理数据的处理结果。

    Method and system for updating time information of a DRM device
    6.
    发明申请
    Method and system for updating time information of a DRM device 有权
    用于更新DRM设备的时间信息的方法和系统

    公开(公告)号:US20080195869A1

    公开(公告)日:2008-08-14

    申请号:US11898471

    申请日:2007-09-12

    IPC分类号: H04L9/32 H04L9/30

    摘要: A method and system for updating time information of a digital rights management (DRM) includes a time server transmitting a time information message to a consumer electronics (CE) device, the CE device transmitting the time information message to a digital rights management DRM device when the CE device receives the time information message from the time server, and the DRM device updating a present time of the DRM device based on the time information message when the DRM device successfully performs authentication with respect to the time information message which has been transmitted from the CE device.

    摘要翻译: 一种用于更新数字版权管理(DRM)的时间信息的方法和系统包括时间服务器向消费者电子设备(CE)设备发送时间信息消息,该CE设备将时间信息消息发送到数字版权管理DRM设备,当时 所述CE设备从所述时间服务器接收所述时间信息消息,并且所述DRM设备基于所述时间信息消息来更新所述DRM设备的当前时间,当所述DRM设备成功地对已经从所述时间信息消息发送的时间信息消息进行认证时 CE设备。

    Key establishment method and system between wireless communication devices
    7.
    发明申请
    Key establishment method and system between wireless communication devices 审中-公开
    无线通信设备之间的密钥建立方法和系统

    公开(公告)号:US20060179314A1

    公开(公告)日:2006-08-10

    申请号:US11346195

    申请日:2006-02-03

    申请人: Hee Jean Kim

    发明人: Hee Jean Kim

    IPC分类号: H04L9/00

    CPC分类号: H04L9/0841 H04L2209/80

    摘要: A method for securely establishing a key against aggressive intervention of a third party. A first device generates a function value using a generator, which is selected from elements in a finite field, and an arbitrary number, which is less than a number of the elements of the finite field, hashes the function value, thereby generating a hashed value, and sends the hashed value and the function value to a second device. The second device hashes the received function value, and establishes a key using the received function value and another arbitrary number selected from the elements of the finite field when the hashed function value matches the received hashed value. Accordingly, it is possible to prevent a third device from intervening in their key establishment. Furthermore, a separate channel for the key establishment is not required because the key is established over a data communication channel.

    摘要翻译: 一种用于安全地建立密钥以抵抗第三方侵入干预的方法。 第一设备使用从有限域中的元素中选择的发生器产生函数值,并且小于有限域的元素的数目的任意数量,对功能值进行散列,从而生成散列值 ,并将散列值和功能值发送到第二设备。 第二设备对接收到的功能值进行散列,并且当散列函数值与接收到的散列值匹配时,使用接收到的函数值和从有限域的元素中选择的另一个任意数字建立密钥。 因此,可以防止第三装置在其密钥建立中进行干预。 此外,不需要用于密钥建立的单独信道,因为密钥是通过数据通信信道建立的。

    Key management method in network system
    8.
    发明申请
    Key management method in network system 审中-公开
    网络系统中的密钥管理方法

    公开(公告)号:US20060095379A1

    公开(公告)日:2006-05-04

    申请号:US11256167

    申请日:2005-10-24

    申请人: Hee-jean Kim

    发明人: Hee-jean Kim

    IPC分类号: G06Q99/00

    摘要: A method of key management in a network system. In a network system which includes at least one node group having a plurality of nodes, the method of key management includes setting commonly-shared keys for subsets of all, or a part of the plurality of nodes; storing a part of the set keys for each node; and generating the rest of the set keys by substituting the part of the set keys for each node in a predetermined function. As a result, the number of keys for storage by each node can be greatly reduced in the transmission of encrypted contents and updated encrypted keys.

    摘要翻译: 一种网络系统密钥管理方法。 在包括具有多个节点的至少一个节点组的网络系统中,所述密钥管理方法包括:为所述多个节点的全部或一部分的子集设置共享密钥; 存储每个节点的设置密钥的一部分; 以及通过将预定功能中的每个节点的所述设置密钥的一部分替换来生成所述设置密钥的其余部分。 结果,在加密内容和更新的加密密钥的传输中,可以大大减少每个节点存储的密钥的数量。

    TRANSMITTING DEVICE, RECEIVING DEVICE, AND TRANSCEIVING METHOD THEREOF
    10.
    发明申请
    TRANSMITTING DEVICE, RECEIVING DEVICE, AND TRANSCEIVING METHOD THEREOF 有权
    发送装置,接收装置及其收发方法

    公开(公告)号:US20140204962A1

    公开(公告)日:2014-07-24

    申请号:US14238664

    申请日:2012-08-13

    IPC分类号: H04L29/06 H04J3/06

    摘要: A transmitting device which transmits a plurality of streams is provided. The transmitting device comprises: a first multimedia data consisting of multimedia contents; a first synchronization information for synchronization of a second multimedia data consisting of multimedia contents; a first transmitting data including a first signaling data for the first multimedia data and a second signaling data for the second multimedia data, a data generating unit generating a second transmitting data including a second synchronization information for synchronization of the second multimedia data and the first multimedia data, a first transmitting unit transmitting the first transmitting data supplied from the data generating unit to a receiving device through a broadcasting network, and a second transmitting unit transmitting the second transmitting data supplied from the data generating unit to the receiving device through an IP network.

    摘要翻译: 提供了发送多个流的发送装置。 发送装置包括:由多媒体内容组成的第一多媒体数据; 用于同步由多媒体内容组成的第二多媒体数据的第一同步信息; 第一发送数据,包括第一多媒体数据的第一信令数据和第二多媒体数据的第二信令数据;数据生成单元,生成包括用于第二多媒体数据和第一多媒体数据的同步的第二同步信息的第二发送数据 数据,第一发送单元,通过广播网络将从数据生成单元提供的第一发送数据发送到接收装置;以及第二发送单元,其通过IP网络将从数据生成单元提供的第二发送数据发送到接收装置 。