Television editing system
First Claim
1. A television editing system comprising, in combination, control means for controlling the audio output of a video apparatus, video signal detecting means, means for coupling said video signal detecting means to a video circuit of said video apparatus for receiving the video signal in said video apparatus, monitoring means coupled to said video signal detecting means for monitoring the video signal received by said video signal detecting means to provide an output voltage signal indicating absence of picture information in the video signal at least for a predetermined period of time during the interval between program material and commercial material, responsive means coupled between said control means and said monitoring means for responding to the output voltage signal to actuate said control means for controlling the audio output of said video apparatus, and means coupled to said control means and responsive to an external recall signal for deactuating said control means upon receipt of the external signal.
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Accused Products
Abstract
A television editing system includes devices which respond to the absence of picture information in a video signal for at least a predetermined period of time, a prelude to the start of a commercial message, and disable or reduce the audio output from a television set or the like for a given period. A microphone is arranged to receive an external audio recall signal, which could be produced by a user clapping his hands. This received signal is processed and used to recall the audio output within the given period. A circuit, responsive to received video signals over a period during which several commercial messages may appear, automatically sets the sensitivity of the editing system.
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Citations
27 Claims
- 1. A television editing system comprising, in combination, control means for controlling the audio output of a video apparatus, video signal detecting means, means for coupling said video signal detecting means to a video circuit of said video apparatus for receiving the video signal in said video apparatus, monitoring means coupled to said video signal detecting means for monitoring the video signal received by said video signal detecting means to provide an output voltage signal indicating absence of picture information in the video signal at least for a predetermined period of time during the interval between program material and commercial material, responsive means coupled between said control means and said monitoring means for responding to the output voltage signal to actuate said control means for controlling the audio output of said video apparatus, and means coupled to said control means and responsive to an external recall signal for deactuating said control means upon receipt of the external signal.
- 15. A television editing system comprising in combination, control means for controlling the audio output of a video apparatus, video signal detecting means, means for coupling said video signal detecting means to a video circuit of said video apparatus for receiving the video signal in said video apparatus, monitoring means coupled to said video signal detecting means for monitoring the video signal received by said video signal detecting means to provide an output voltage signal indicating absence of picture information in the video signal at least for a predetermined period of time during the interval between program material and commercial material, responsive means coupled between said control means and said monitoring means for responding to said output voltage signal to actuate said control means for controlling the audio output of said video apparatus, and automatic means responsive to video signals in said video apparatus for automatically adjusting sensitivity of the system.
Specification