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    • 7. 发明申请
    • Network interface unit
    • 网络接口单元
    • US20060271654A1
    • 2006-11-30
    • US11429306
    • 2006-05-08
    • Ye-youl LeeChang-yong Kim
    • Ye-youl LeeChang-yong Kim
    • G06F15/177
    • H04N21/43632H04L12/2803H04L12/2838H04L2012/2849H04N7/163H04N7/1675H04N21/434
    • A network interface unit (NIU) based on an expandable home theater (XHT) is provided with a tuner which receives a broadcasting signal over an external network; a demodulator which demodulates a baseband signal from the received broadcasting signal; and an NIU chipset which creates a data signal based on an IEEE 1394 protocol from the baseband signal, and transmits the created signal to an A/V apparatus connected to an internal network. The NIU chipset comprises a POD interface controller which outputs a scrambled transport stream included in the baseband signal, receives an encrypted signal, which is a response to the transmitted transport stream, and decodes the received encrypted signal to restore the transport stream; a de-multiplexer which parses the restored transport stream and de-multiplexes the transport stream to extract a bit stream; and a 1394 module which converts the extracted bit stream into data signals according to the IEEE 1394 protocol.
    • 基于可扩展家庭影院(XHT)的网络接口单元(NIU)设置有通过外部网络接收广播信号的调谐器; 解调器,对接收到的广播信号的基带信号进行解调; 以及基于来自基带信号的基于IEEE 1394协议的数据信号的NIU芯片组,并将所创建的信号发送到连接到内部网络的A / V设备。 NIU芯片组包括POD接口控制器,其输出包括在基带信号中的加扰传输流,接收作为对所发送的传输流的响应的加密信号,并解码所接收的加密信号以恢复传输流; 解复用器,其解析恢复的传输流,并解复用传输流以提取比特流; 以及根据IEEE 1394协议将提取的比特流转换成数据信号的1394模块。