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    • 4. 发明申请
    • Method for processing a channel request in an IPTV system
    • 在IPTV系统中处理频道请求的方法
    • US20100100913A1
    • 2010-04-22
    • US12455932
    • 2009-06-08
    • Patrick LePrinceBernard PichotFlorent Fresnaye
    • Patrick LePrinceBernard PichotFlorent Fresnaye
    • H04N7/173
    • H04N21/4383H04N5/50H04N7/17318H04N21/23424H04N21/44016H04N21/6175H04N21/64322
    • The present invention relates to a method for processing a channel change request in a television system operating according to the IP protocol. This method is implemented in a digital decoder of the subscriber and its purpose is to avoid overloading the access network in the case of burst zapping and avoid penalising the reactivity time of the system in the case of simple zapping. According to the invention, in the case of reception of a burst of channel change requests separated by a time interval less than the duration of the predetermined timeout (Ttempo), the digital decoder transmits, to the access network of the system, two physical channel change requests, one for the first channel change request and the other for the last channel change request of the burst. The first request is transmitted immediately after the reception of the first channel change request and the last request is transmitted with a delay equal to the duration of the timeout after the reception of the last channel change request. In the case of simple zapping, the digital decoder transmits immediately after reception of the channel change request a physical channel change request.
    • 本发明涉及一种在根据IP协议操作的电视系统中处理频道改变请求的方法。 该方法在用户的数字解码器中实现,其目的是在突发切换的情况下避免接入网络的超载,并且在简单的切换的情况下避免惩罚系统的反应时间。 根据本发明,在接收到小于预定超时(Ttempo)的持续时间的时间间隔分离的信道改变请求的突发的情况下,数字解码器向系统的接入网发送两个物理信道 改变请求,一个用于第一个信道改变请求,另一个用于突发的最后一个信道改变请求。 在接收到第一频道改变请求之后立即发送第一请求,并且在接收到最后的频道改变请求之后以等于超时的持续时间的延迟来发送最后的请求。 在简单的切换的情况下,数字解码器在接收到频道改变请求后立即发送物理频道改变请求。