METHOD AND APPARATUS FOR SPECTRUM MONITORING
First Claim
1. A method comprising:
- performing by one or more circuits of a receiver coupled to a television and data service provider headend via a hybrid fiber coaxial (HFC) network;
receiving, via said HFC network, a signal that carries a plurality of channels, wherein said channels comprise one or both of television channels and data channels;
digitizing said received signal to generate a digitized signal;
selecting a first portion of said digitized signal;
selecting a second portion of said digitized signal;
processing said selected second portion of said digitized signal to recover information carried in said plurality of channels;
analyzing said selected first portion of said digitized signal to measure a characteristic of said received signal; and
controlling the transmission of network management messages back to said headend based on said measured characteristic of said received signal.
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Accused Products
Abstract
A receiver is configured to be coupled to a television and data service provider headend via a hybrid fiber coaxial (HFC) network. The receiver comprises front-end circuitry operable to receive a signal that carries a plurality of television and/or data channels, and digitize the received signal to generate a digitized signal. The receiver comprises channelizer circuitry operable to select a first portion of the digitized signal, and select a second portion of the digitized signal. The receiver comprises processing circuitry operable to process the selected second portion of the digitized signal to recover information carried in the plurality of channels. The receiver comprises monitoring circuitry operable to analyze the selected first portion of the digitized signal to measure a characteristic of the received signal; and control the transmission of network management messages back to the headend based on the measured characteristic of the received signal.
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Citations
18 Claims
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1. A method comprising:
performing by one or more circuits of a receiver coupled to a television and data service provider headend via a hybrid fiber coaxial (HFC) network; receiving, via said HFC network, a signal that carries a plurality of channels, wherein said channels comprise one or both of television channels and data channels; digitizing said received signal to generate a digitized signal; selecting a first portion of said digitized signal; selecting a second portion of said digitized signal; processing said selected second portion of said digitized signal to recover information carried in said plurality of channels; analyzing said selected first portion of said digitized signal to measure a characteristic of said received signal; and controlling the transmission of network management messages back to said headend based on said measured characteristic of said received signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 15, 16)
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10. A system comprising:
a receiver configured to be coupled to a television and data service provider headend via a hybrid fiber coaxial (HFC) network, the receiver comprising; front-end circuitry operable to; receive a signal that carries a plurality of channels, wherein said channels comprise one or both of television channels and data channels; and digitize said received signal to generate a digitized signal; channelizer circuitry operable to; select a first portion of said digitized signal; and select a second portion of said digitized signal; processing circuitry operable to process said selected second portion of said digitized signal to recover information carried in said plurality of channels; monitoring circuitry operable to; analyze said selected first portion of said digitized signal to measure a characteristic of said received signal; and control the transmission of network management messages back to said headend based on said measured characteristic of said received signal. - View Dependent Claims (11, 12, 13, 14, 17, 18)
Specification