Apparatus and method for remote monitoring of video signals
First Claim
Patent Images
1. An analog video signal-monitoring apparatus, comprising:
- an input for an analog video signal receiver;
a channel selector connected to said input and operable in response to a control signal to select a video signal channel;
a digitizer operable to digitize and serialize the selected signal channel as a digital video signal;
a transmitter for transmitting the digital video signal from said digitizer to a monitoring location;
a video signal-monitoring unit responsive to the digital video signal for use at the monitoring location, said video signal-monitoring unit capable of providing observation of actual pictures from said video signal for visual and quantitative analysis; and
a channel selector control signal generator operable to provide the control signal to said channel selector.
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Abstract
Apparatus for and a method of monitoring the transmission of an analog video signal through a video signal transmission channel, e.g. a fiber optic cable from a headend capturing the analog video signal at a location remote from the headend and select a signal channel from the captured video signal. The selected signal channel is digitized and serialized as a digital signal and the digital signal is transmitted as an optical signal through an optical fiber cable to a monitoring location, where the digital signal is converted to an analog video signal which is displayed on a video monitor.
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Citations
28 Claims
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1. An analog video signal-monitoring apparatus, comprising:
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an input for an analog video signal receiver; a channel selector connected to said input and operable in response to a control signal to select a video signal channel; a digitizer operable to digitize and serialize the selected signal channel as a digital video signal; a transmitter for transmitting the digital video signal from said digitizer to a monitoring location; a video signal-monitoring unit responsive to the digital video signal for use at the monitoring location, said video signal-monitoring unit capable of providing observation of actual pictures from said video signal for visual and quantitative analysis; and a channel selector control signal generator operable to provide the control signal to said channel selector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An analog video signal-monitoring apparatus for detecting and monitoring an analog video signal being transported on a cable, comprising:
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a signal receiver for receiving the analog video signal from said cable; a channel selector connected to said signal receiver for selecting a channel from the received analog video signal in response to a control signal from said cable; means connected to said channel selector for digitizing and serializing the selected signal channel as a digital video signal; means for transmitting the digital video signal to a monitoring location, said monitoring location capable of providing observation of actual pictures from said video signal; means for analyzing the digital video signal at the monitoring location; signal link means between said transmitting means and said signal analysis means for conveying the digital video signal to the latter; and signal generator means for generating the control signal and supplying the control signal through said cable to said channel selector. - View Dependent Claims (10, 11, 12, 17)
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13. An analog video signal-monitoring system comprising:
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signal-detecting apparatus for detecting an analog video signal, said signal detecting apparatus comprising; an analog signal receiver; a channel selector connected to said signal receiver and operable in response to a control signal to select a channel; a digitizer connected to said channel selector for digitizing and serializing the selected signal channel as a digital video signal; and a transmitter for transmitting the digital video signal from said digitizer to a monitoring location; said system further comprising; a signal conduit extending from said transmitter to the monitoring location; and a video signal-monitoring unit responsive to the digital video signal at the monitoring location; said monitoring unit capable of providing observation of actual pictures from said video signal, said monitoring unit including a receiver connected to said signal conduit for receiving the digital signal, video signal analysis apparatus connected to an output of said receiver and a channel selector control signal generator for providing the control signal to said channel selector. - View Dependent Claims (14, 15, 16)
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18. A method of monitoring the transmission of an analog video signal, comprising the steps of:
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receiving the video signal at a predetermined location; employing a control signal to select a channel of the received video signal; digitizing and serializing the thus-selected channel as a digital video signal; transmitting the digital video signal to a monitoring location capable of allowing observation of actual pictures from said video signal; monitoring the digital video signal at the monitoring location and; transmitting the control signal to the predetermined location to effect remote control of the channel selection. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification