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    • 17. 发明授权
    • Method and apparatus for deferring transmission of an SDV program to conserve network resources
    • 推迟传输SDV节目以节省网络资源的方法和装置
    • US08938766B2
    • 2015-01-20
    • US11960562
    • 2007-12-19
    • Patrick Wright-Riley
    • Patrick Wright-Riley
    • H04N7/173H04N21/239H04N21/24H04N21/262H04N21/6405
    • H04N7/17336H04N7/17327H04N21/2393H04N21/2402H04N21/2625H04N21/6405
    • A switched digital video (SDV) system is provided which includes a SDV manager for coordinating SDV sessions requested by a plurality of subscriber terminals associated with a service group. The system also includes an input for receiving SDV programming to be broadcast during the SDV sessions. At least one edge device is provided for receiving SDV programming provided by the input and for transmitting each SDV program over an access network to at least one of the subscriber terminals on one of a plurality of SDV channels. The SDV manager is configured to (i) cause transmission of at least a first requested SDV program to be delayed until a later time; and (ii) select the first requested SDV program to be delayed from among a plurality of requested SDV programs based at least in part on a current viewing and recording status of the plurality of subscriber terminals.
    • 提供了一种交换数字视频(SDV)系统,其包括用于协调由与服务组相关联的多个用户终端请求的SDV会话的SDV管理器。 该系统还包括用于接收在SDV会话期间广播的SDV节目的输入。 提供至少一个边缘设备用于接收由输入提供的SDV节目,并且用于通过接入网络将每个SDV节目传送到多个SDV信道之一中的至少一个用户终端。 SDV管理器被配置为(i)使至少第一请求的SDV节目的传输被延迟到稍后的时间; 以及(ii)至少部分地基于多个用户终端的当前观看和记录状态,从多个请求的SDV节目中选择要延迟的第一请求SDV节目。