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    • 3. 发明授权
    • System and method for restricting access to a set-top box
    • 限制访问机顶盒的系统和方法
    • US08732741B2
    • 2014-05-20
    • US11964964
    • 2007-12-27
    • Jian LiZhi LiSun-Uk Park
    • Jian LiZhi LiSun-Uk Park
    • H04N7/16
    • H04N7/163H04N21/4126H04N21/42204H04N21/4367H04N21/64322
    • A system and method is disclosed for restricting a remote control interface port of a set-top box configured to broadcast multimedia programs over a provider network. A change schedule that changes communication parameters may restrict the remote control interface port. The operating frequency or the code set used to transmit data and commands may be changed at random or at predefined intervals. The set-top box, the remote control, or an external network device may initiate the change schedule. Encryption of communications between the set-top box and the remote control unit may also be performed to protect the set-top box from unauthorized access.
    • 公开了一种用于限制被配置为通过提供商网络广播多媒体节目的机顶盒的远程控制接口端口的系统和方法。 更改通信参数的更改计划可能会限制远程控制接口端口。 用于传输数据和命令的操作频率或代码集可以随机地或以预定的间隔进行改变。 机顶盒,遥控器或外部网络设备可以启动更改时间表。 还可以执行机顶盒和遥控单元之间的通信加密,以保护机顶盒免受未经授权的访问。