Bulk tuning of frequency-modulated video signals
First Claim
1. A method for terminating frequency-modulated video signal for delivery of video service to a subscriber, the method comprising:
- receiving a frequency-modulated video signal, the video signal containing a plurality of frequency channels having digital video content modulated therein;
converting the received video signal from the analog to the digital domain;
extracting a plurality of channels from the video signal by using de-channelization in the digital domain; and
demodulating the digital video content from the extracted channels to produce a plurality of encoded digital video program streams.
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Abstract
A video processing engine terminates frequency-modulated video signals transported over the so-called third mile (the network segment from the head-end to the access network) for delivery to an end user. In various network architectures, these signals are received at a central office (CO), for the telephone companies; at a fiber node (FN), for MSOs; or at a satellite dish, for satellite networks. By terminating these signals appropriately, high-quality video service can be delivered efficiently to customers over the last mile. Systems and methods for processing these video streams as well as various network architectures that allow the network providers to offer cost effective video services to the mass market are described.
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Citations
39 Claims
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1. A method for terminating frequency-modulated video signal for delivery of video service to a subscriber, the method comprising:
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receiving a frequency-modulated video signal, the video signal containing a plurality of frequency channels having digital video content modulated therein;
converting the received video signal from the analog to the digital domain;
extracting a plurality of channels from the video signal by using de-channelization in the digital domain; and
demodulating the digital video content from the extracted channels to produce a plurality of encoded digital video program streams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A video processing engine for terminating frequency-modulated video signal for delivery of video service to a subscriber, the video processing engine comprising:
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an interface for receiving a frequency-modulated video signal, the video signal containing a plurality of frequency channels having digital video content modulated therein;
an analog to digital converter for converting the received video signal from the analog to the digital domain;
a digital tuner coupled to the analog to digital converter for extracting a plurality of channels from the video signal by using de-channelization in the digital domain; and
a demodulator coupled to the digital tuner for demodulating the digital video content from the extracted channels to produce a plurality of encoded digital video program streams. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A system for providing video service to a plurality of subscribers, the system comprising:
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an interface for receiving a frequency-modulated video signal containing a plurality of video program streams from a service provider;
means for extracting a plurality of channels from the frequency-modulated video signal;
means for demodulating the extracted channels to produce a plurality of encoded video program streams; and
a subscriber interface for delivering video program streams to at least some of the plurality of subscribers. - View Dependent Claims (39)
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Specification