公开(公告)号：US07286571B2

公开(公告)日：2007-10-23

申请号：US10199236

申请日：2002-07-19

申请人： John Norman Mailhot ,  R. Scott McCaskill ,  Rajesh Rajagopalan ,  Robert A. Resuta ,  Michael J. Scheutzow

发明人： John Norman Mailhot ,  R. Scott McCaskill ,  Rajesh Rajagopalan ,  Robert A. Resuta ,  Michael J. Scheutzow

IPC分类号： H04J3/02

CPC分类号： H04N21/8126 ,  H04N7/17309 ,  H04N21/23614 ,  H04N21/2365 ,  H04N21/23655 ,  H04N21/4347 ,  H04N21/4348

摘要： The present invention provides systems and methods for providing on-demand datacasting. A system according to an exemplary embodiment of the present invention comprises a rate generator for controlling the rate at which data signals are combined with audio/video signals. The system may also include a system controller for controlling the rate of the rate generator. The system controller may also monitor the complexity of the audio/video signals, calculate an average complexity of the audio/video signals, calculate an average complexity of the audio/video signals and determine whether the average complexity is greater than the typical complexity of audio/video signals. The system controller may adjust the rate of the rate generator based on the determination of whether the average complexity of the audio/video signals is greater than the typical complexity of audio/video signals.

摘要翻译： 本发明提供了用于提供按需数据广播的系统和方法。 根据本发明的示例性实施例的系统包括用于控制数据信号与音频/视频信号组合的速率的速率发生器。 系统还可以包括用于控制速率发生器的速率的系统控制器。 系统控制器还可以监视音频/视频信号的复杂性，计算音频/视频信号的平均复杂度，计算音频/视频信号的平均复杂度，并且确定平均复杂度是否大于典型的音频复杂度 /视频信号。 系统控制器可以基于音频/视频信号的平均复杂度是否大于音频/视频信号的典型复杂度的确定来调整速率发生器的速率。