Method and apparatus for spectrum monitoring
First Claim
1. A system comprising:
- an analog-to-digital converter (ADC) operable to digitize a plurality of channels to generate a plurality of digital channels;
a channelizer operable to select one or more digital channels of the plurality of digital channels;
analysis circuitry operable to measure a characteristic of the one or more digital channels according to a portion of the plurality of digital channels, wherein the measured characteristic is different than a network management message; and
a transmitter operable to control a transmission of the network management message and the selected one or more digital channels according to the measured characteristic.
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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.
36 Citations
20 Claims
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1. A system comprising:
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an analog-to-digital converter (ADC) operable to digitize a plurality of channels to generate a plurality of digital channels; a channelizer operable to select one or more digital channels of the plurality of digital channels; analysis circuitry operable to measure a characteristic of the one or more digital channels according to a portion of the plurality of digital channels, wherein the measured characteristic is different than a network management message; and a transmitter operable to control a transmission of the network management message and the selected one or more digital channels according to the measured characteristic. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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digitizing a plurality of channels, using an analog-to-digital converter (ADC), to generate a plurality of digital channels; selecting one or more digital channels of the plurality of digital channels using a channelizer; measuring a characteristic of the selected one or more digital channels according to a portion of the plurality of digital channels, wherein the measured characteristic is different than a network management message; and controlling a transmission of the network management message and the selected one or more digital channels according to the measured characteristic. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification