公开(公告)号：WO2009018480A1

公开(公告)日：2009-02-05

申请号：PCT/US2008/071819

申请日：2008-07-31

Applicant: SIRIUS SATELLITE RADIO INC. ,  WARD, Laurence, Oliver

Inventor： WARD, Laurence, Oliver

IPC: H04L12/66

CPC classification number: H04N21/434 ,  H04N5/4401 ,  H04N21/23424 ,  H04N21/4383 ,  H04N21/4384 ,  H04N21/44004 ,  H04N21/44016 ,  H04Q2213/13332

Abstract: A system, method and computer program product are provided for fast channel change between logical channels within a transport multiplex. By reducing the amount of time it takes to acquire and display a tuned channel, fast channel change can improve a viewer's experience. In exemplary embodiments of the present invention, a fast channel change system can simultaneously decode channel data for each channel in a transport multiplex, reconstruct all access units for each channel and send them out on their respective channel stream in the order that each access unit completes to a streamer, store and maintain a minimum amount of channel data in a buffer in each streamer, and output channel data from a streamer corresponding to a tuned channel to a media player.

Abstract translation: 提供了一种系统，方法和计算机程序产品，用于在传输多路复用之间的逻辑信道之间的快速信道改变。 通过减少获取和显示调谐频道所需的时间，快速的频道更改可以改善观众的体验。 在本发明的示例性实施例中，快速信道改变系统可以同时解码传输多路复用中的每个信道的信道数据，重构每个信道的所有接入单元，并按照每个接入单元完成的顺序在它们各自的信道流上发送出去 到每个流送器中的缓冲器中存储并保持最小量的通道数据，并且将来自与调谐通道相对应的流分流器的通道数据输出到媒体播放器。