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    • 1. 发明授权
    • Packet processing relay agent to provide link layer forwarding in one-way cable/wireless/satellite modems
    • 分组处理中继代理在单向有线/无线/卫星调制解调器中提供链路层转发
    • US06484210B1
    • 2002-11-19
    • US09179812
    • 1998-10-27
    • Richard AdrianoPoornima LalwaneyYong Ho Son
    • Richard AdrianoPoornima LalwaneyYong Ho Son
    • G06F1516
    • H04L12/2801H04L12/2856
    • A method and apparatus for allowing a personal computer to receive data from a computer network such as the Internet via a broadcast channel of a cable or satellite television network, while transmitting data upstream to the computer network via a telephone line. A packet processing relay agent (PPRA) forwards data at the data link layer between a one-way network adapter, such as a cable modem that receives Internet data via a cable network, and a two-way return path adapter, such as a telephone modem that communicates with Internet servers and other users via a telephone network. The system provides compatibility with TCP/IP routing/addressing conventions by forwarding upstream IP packets with a cable modem source address over the telephone modem. The PPRA can enhance functionality by incorporating higher layer functions at the data link layer.
    • 一种用于允许个人计算机经由电缆或卫星电视网络的广播信道从诸如因特网的计算机网络接收数据的方法和装置,同时经由电话线将数据上传到计算机网络。 分组处理中继代理(PPRA)在诸如电缆网络接收因特网数据的电缆调制解调器等单向网络适配器之间的数据链路层转发数据,以及诸如电话的双向返回路径适配器 调制解调器通过电话网络与互联网服务器和其他用户进行通信。 该系统通过电话调制解调器上的电缆调制解调器源地址转发上游IP数据包,提供与TCP / IP路由/寻址约定的兼容性。 PPRA可以通过在数据链路层集成更高层的功能来增强功能。
    • 6. 发明授权
    • Secure distribution of video on-demand
    • 视频点播的安全分发
    • US07930724B2
    • 2011-04-19
    • US10695277
    • 2003-10-28
    • Yong Ho SonChristopher Goode
    • Yong Ho SonChristopher Goode
    • H04N7/167H04N7/173G06F21/00
    • H04N21/4542H04N7/1675H04N7/17309H04N7/17318H04N21/2347H04N21/23473H04N21/23476H04N21/47202
    • An interactive information distribution system for providing secure distribution of video-on-demand content. The interactive information distribution system includes at least one programming source for storing at least one partially encrypted video program, and a distribution center including a remote server. The remote server stores the at least one partially encrypted video program received from the at least one programming source. The remote server also processes the partially encrypted video program corresponding to a subscriber requested video program to produce a fully encrypted video program. A subscriber-side distribution network, coupled to the distribution center, causes transmission of the fully encrypted video program to the requesting subscriber.
    • 一种用于提供视频点播内容的安全分发的交互式信息分发系统。 交互式信息分发系统包括用于存储至少一个部分加密的视频节目的至少一个节目源和包括远程服务器的分发中心。 远程服务器存储从至少一个编程源接收的至少一个部分加密的视频节目。 远程服务器还处理与订户请求的视频节目相对应的部分加密的视频节目以产生完全加密的视频节目。 耦合到分发中心的用户侧分发网络使完全加密的视频节目传输到请求用户。