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    LOW DENSITY PARITY CHECK CODE FOR TERRESTRIAL CLOUD BROADCAST
    8.
    发明申请
    LOW DENSITY PARITY CHECK CODE FOR TERRESTRIAL CLOUD BROADCAST 有权
    低密度奇异度检查地面云南广播规范

    公开(公告)号：US20160072524A1

    公开(公告)日：2016-03-10

    申请号：US14942392

    申请日：2015-11-16

    申请人： Electronics and Telecommunications Research Institute

    发明人： Sung Ik PARK ,  Heung Mook KIM ,  Nam Ho HUR

    IPC分类号： H03M13/11 ,  H03M13/00

    CPC分类号： H03M13/1185 ,  H03M13/1105 ,  H03M13/116 ,  H03M13/1165 ,  H03M13/1168 ,  H03M13/616 ,  H03M13/6552 ,  H03M13/6555 ,  H04L1/0041 ,  H04L1/0058

    摘要： Provided is an LDPC (Low Density Parity Check) code for terrestrial cloud broadcast. A method of encoding input information based on an LDPC (Low Density Parity Check) includes receiving information and encoding the input information with an LDPC codeword using a parity check matrix, wherein the parity check matrix may have a structure obtained by combining a first parity check matrix for an LDPC code having a higher code rate than a reference value with a second parity check matrix for an LDPC code having a lower code rate than the reference value.

    摘要翻译： 提供了用于地面云广播的LDPC（低密度奇偶校验）码。 一种基于LDPC（Low Density Parity Check，低密度奇偶校验）的输入信息的编码方法包括使用奇偶校验矩阵以LDPC码字接收信息并对输入信息进行编码，其中奇偶校验矩阵可以具有通过组合第一奇偶校验 矩阵，用于具有比参考值更高的码率的LDPC码，具有用于具有比参考值更低的码率的LDPC码的第二奇偶校验矩阵。

    DIGITAL MULTIMEDIA BROADCASTING APPARATUS AND METHOD FOR MULTIPLE-DRM SERVICE
    9.
    发明申请
    DIGITAL MULTIMEDIA BROADCASTING APPARATUS AND METHOD FOR MULTIPLE-DRM SERVICE 审中-公开
    数字多媒体广播数字多媒体数字多媒体广播

    公开(公告)号：US20150033284A1

    公开(公告)日：2015-01-29

    申请号：US14341967

    申请日：2014-07-28

    申请人： Electronics and Telecommunications Research Institute

    发明人： Han Seung KOO ,  Dong Joon CHOI ,  Nam Ho HUR ,  Young Mi SHIN ,  Mi Sung CHO ,  Dae Sang YOU ,  Sung Heun OH ,  Byoung Soo KOH

    IPC分类号： H04L29/06 ,  G06F21/10

    CPC分类号： H04L63/10 ,  G06F21/10 ,  H04L2463/101 ,  H04W12/0023 ,  H04W12/0027 ,  H04W12/08

    摘要： A method for receiving contents using a mobile terminal according to the present invention is provided. The method includes generating a security channel connected to system being in charge of a service and content protection (SCP) client through an agent downloaded and installed in a mobile terminal; downloading and installing one or multiple SCP client software of different kind from the system through the security channel generated by the agent; and playing back the service or content provided in protected state by a content provider among the one or multiple SCP client software of different kind by driving the decodable SCP client software.

    摘要翻译： 提供了一种根据本发明的使用移动终端接收内容的方法。 该方法包括通过下载和安装在移动终端中的代理来生成连接到负责服务和内容保护（SCP）客户端的系统的安全通道; 通过代理生成的安全通道从系统下载和安装不同类型的一个或多个SCP客户端软件; 并通过驱动可解码的SCP客户端软件，在不同类型的一个或多个SCP客户端软件中，通过内容提供商播放在受保护状态下提供的服务或内容。

    NETWORK PROTOCOL FOR CONTENTS PROTECTION IN DIGITAL CABLE BROADCASTING SERVICE AND CONDITIONAL ACCESS SYSTEM USING THE PROTOCOL
    10.
    发明申请
    NETWORK PROTOCOL FOR CONTENTS PROTECTION IN DIGITAL CABLE BROADCASTING SERVICE AND CONDITIONAL ACCESS SYSTEM USING THE PROTOCOL 审中-公开
    使用协议的数字电缆广播服务和条件访问系统中的内容保护网络协议

    公开(公告)号：US20150033251A1

    公开(公告)日：2015-01-29

    申请号：US14340706

    申请日：2014-07-25

    申请人： Electronics and Telecommunications Research Institute

    发明人： Han Seung KOO ,  Yang Su KIM ,  Dong Joon CHOI ,  Nam Ho HUR

    IPC分类号： H04N21/266 ,  H04L29/06

    CPC分类号： H04N21/26613 ,  H04L63/062 ,  H04L63/0823 ,  H04L63/10 ,  H04L2463/061 ,  H04N21/43607

    摘要： Disclosed are a network protocol for contents protection in a digital cable broadcasting service and a conditional access system using the protocol. A method for renewing conditional access client software (CACS) by a conditional access module in a renewable conditional access system (RCAS) may include: receiving an RCAS announcement message from a headend; transmitting to the headend a key registration request message for requesting an authorization key when the RCAS announcement message is authenticated; receiving a key registration response message including the authorization key from the headend; and generating security factors based on the authorization key and renewing the CACS by using the security factors.

    摘要翻译： 公开了一种用于数字有线广播服务中的内容保护的网络协议和使用协议的条件访问系统。 用于通过可再生条件访问系统（RCAS）中的条件访问模块更新条件访问客户端软件（CACS）的方法可以包括：从头端接收RCAS通知消息; 当所述RCAS通知消息被认证时，向所述前端发送用于请求授权密钥的密钥注册请求消息; 从头端接收包括授权密钥的密钥注册响应消息; 并根据授权密钥生成安全因子，并通过安全性因素更新CACS。