Invention Grant
- Patent Title: Systems and methods for providing redundant back-up to a video transmission system
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Application No.: US10146522Application Date: 2002-05-14
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Publication No.: US08505063B2Publication Date: 2013-08-06
- Inventor: William C. Coufal , Randall E. Adams , Kurt E. Ackerman
- Applicant: William C. Coufal , Randall E. Adams , Kurt E. Ackerman
- Applicant Address: US CO Denver
- Assignee: Qwest Communications International Inc.
- Current Assignee: Qwest Communications International Inc.
- Current Assignee Address: US CO Denver
- Agency: Swanson & Bratschun, L.L.C.
- Main IPC: H04N7/16
- IPC: H04N7/16

Abstract:
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.
Public/Granted literature
- US20030163829A1 Systems and methods for providing redundant back-up to a video transmission system Public/Granted day:2003-08-28
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