公开(公告)号：US20130179933A1

公开(公告)日：2013-07-11

申请号：US13734656

申请日：2013-01-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ho Sook LEE ,  Dong Joon CHOI ,  Nam Ho HUR

IPC: H04N21/258

CPC classification number: H04N21/258 ,  H04N21/2221 ,  H04N21/6118 ,  H04N21/6168 ,  H04N21/64322 ,  H04N21/64707

Abstract: Disclosed is a headend device for a cable network and a method of operating the headend device. The headend device for a hybrid fiber coaxial (HFC)-based cable network may transmit a digital video data stream and an Internet Protocol (IP) data stream input using various input interface standards integratedly based on a frequency channel standard for the cable network to improve efficiency.

Abstract translation: 公开了一种用于电缆网络的头端设备和操作头端设备的方法。 用于基于混合光纤同轴（HFC）的有线网络的前端设备可以基于用于有线网络的频率信道标准集成地传输使用各种输入接口标准输入的数字视频数据流和因特网协议（IP）数据流，以改善 效率。

公开(公告)号：US20140215530A1

公开(公告)日：2014-07-31

申请号：US13957134

申请日：2013-08-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ho Sook LEE ,  Dong Joon CHOI ,  Nam Ho HUR

IPC: H04N21/61

CPC classification number: H04N21/6131 ,  H04L12/2801 ,  H04N21/238 ,  H04N21/239 ,  H04N21/6106 ,  H04N21/6125

Abstract: A method for transmitting broadcast and data streams in an HFC-based cable network includes a first transmission step of a broadcast transmission apparatus sending broadcast and data service streams in an IP-based stream or RF signal form through an optical section up to a cell node that is a contact point between the optical section and a cable section of a cable network and a second transmission step of the cell node converting the broadcast and data service streams into one of RF signal, IP-based stream, and RF/IP convergence service stream forms depending on a service type of a subscriber terminal and sending the converted broadcast and data service streams to the subscriber terminal through the cable section.

Abstract translation: 一种用于在基于HFC的有线网络中发送广播和数据流的方法包括：广播传输设备的第一传输步骤，其以基于IP的流或RF信号形式通过光学部分发送广播和数据业务流，直到单元节点 即光纤部分和电缆网络的电缆部分之间的接触点，并且小区节点的第二传输步骤将广播和数据业务流转换成RF信号，基于IP的流和RF / IP收敛服务之一 流形式取决于用户终端的服务类型，并通过电缆部分将转换的广播和数据业务流发送给用户终端。