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    • 7. 发明授权
    • Digital broadcast system in passive optical network
    • 无源光网络中的数字广播系统
    • US07610608B2
    • 2009-10-27
    • US10739236
    • 2003-12-17
    • Yongtae KimKang Bok LeeHeyung Sub LeeHyeong Ho Lee
    • Yongtae KimKang Bok LeeHeyung Sub LeeHyeong Ho Lee
    • H04N7/173
    • H04N21/4405H04N7/17318H04N21/2347H04N21/235H04N21/435H04N21/4622H04N21/47202H04N21/4782H04N21/6125
    • Provided is a digital broadcast system that receives digital broadcast services on a passive optical network (PON). The data separator separates a signal input thereinto from the outside into an Ethernet frame for data service and an Ethernet frame for digital broadcast service. The Ethernet switch transmits the Ethernet frame for data service to an optical network terminal (ONT) provided in the user's home according to header information of the Ethernet frame for data service. The channel request processor receives the user's channel selection request information and user identification (ID) information from the ONT. The digital broadcast processor transmits the Ethernet frame for digital broadcast service, corresponding to the digital broadcast channel selected by the user, to the user's ONT, by using a part of bandwidth assigned for an existing line.
    • 提供了一种在无源光网络(PON)上接收数字广播服务的数字广播系统。 数据分离器将其中输入的信号与外部分离成用于数据服务的以太网帧和用于数字广播服务的以太网帧。 以太网交换机根据数据业务以太网帧的头信息,将用于数据业务的以太网帧发送到用户家庭中提供的光网络终端(ONT)。 信道请求处理器从ONT接收用户的频道选择请求信息和用户标识(ID)信息。 数字广播处理器通过使用分配给现有线路的带宽的一部分,将与用户选择的数字广播频道对应的数字广播服务的以太网帧发送给用户的ONT。