Invention Grant
US09232242B2 Techniques to broadcast a network television program 有权
广播网络电视节目的技术

Techniques to broadcast a network television program
Abstract:
Techniques to automatically switch among video signals in a television broadcast are disclosed. A trigger decoder may receive a network video signal for a network program. The network video signal may be comprised of a video signal and a trigger control signal. The trigger control signal may comprise a time period indicative of how long until a station break is to occur within the network program. The trigger decoder may separate the video signal from the trigger control signal. A latency adjuster may determine a delay between the transmission of the network video signal and the reception of the network video signal. A master control switcher clock may be reset based on the delay. The master control switcher may receive the video signal for the network program, and one or more video signals from one or more video servers containing video content. The master control switcher may select one of the video signals to output, wherein the time for switching from the video signal for the network program to another video signal is controlled by the trigger control signal and the reset clock.
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