公开(公告)号：US08806563B2

公开(公告)日：2014-08-12

申请号：US13936006

申请日：2013-07-05

申请人： Qwest Communications International Inc.

发明人： William C. Coufal ,  Randall E. Adams ,  Kurt E. Ackerman

IPC分类号： H04N7/16 ,  H04N1/32 ,  H04N21/458

CPC分类号： H04N1/32683 ,  H04N5/38 ,  H04N7/16 ,  H04N21/42607 ,  H04N21/44209 ,  H04N21/4586 ,  H04N21/6106

摘要： A system and method for providing video signals wherein the video signals from a single video source may be separately passed over two different transmission paths. Each transmission path includes an encoder, a communications channel and a decoder. The output of each communications path at the decoder provides the video signals and an alarm signal. The alarm signal indicates an error or disruption of the video signals over the corresponding communications path. The outputted video and alarm signals are provided to a video protection switch (VPS) device which provides the video signal from the second transmission path if the alarm signals indicates an error or disruption in the first transmission path. In one embodiment, the VPS has multiple switches, one for each of plural video sources, and a redundant switch and protection ports. The redundant switch and protection ports may be connected to receive the video and alarm signals if one of the switches in the VPS fails.

摘要翻译： 一种用于提供视频信号的系统和方法，其中来自单个视频源的视频信号可以分开地通过两个不同的传输路径。 每个传输路径包括编码器，通信信道和解码器。 解码器处的每个通信路径的输出提供视频信号和报警信号。 报警信号指示相应通信路径上的视频信号的错误或中断。 输出的视频和报警信号被提供给视频保护开关（VPS）设备，如果报警信号指示第一传输路径中的错误或中断，则提供来自第二传输路径的视频信号。 在一个实施例中，VPS具有多个开关，一个用于多个视频源中的每一个，以及冗余开关和保护端口。 如果VPS中的一个开关发生故障，冗余开关和保护端口可能被连接以接收视频和报警信号。