High-speed multi-channel communications transceiver with inter-channel interference filter
First Claim
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1. A transmission system, comprising:
- a plurality of demodulators, each of the plurality of demodulators receiving signals from one of a plurality of transmission bands, the plurality of transmission bands being transmitted on a single differential conductive pair; and
a cross-channel interference canceller coupled to the plurality of demodulators, the cross-channel interference canceller coupled to receive the signals from all of the plurality of transmission bands transmitted on the differential conductive pair.
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Abstract
A communication system is disclosed that allows high data-rate transmission of data between components. N-bit parallel data is transmitted in K-frequency separated channels on the transmission medium so as to fully take advantage of the overall bandwidth of the transmission medium. Additionally, a cross-channel interference filter in a receiver section corrects for cross-channel interference in the communication system. As a result, a very high data-rate transmission can be accomplished with low data-bit transmission on individual channels. A transmitter system and a receiver system are described for the communication system.
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Citations
41 Claims
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1. A transmission system, comprising:
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a plurality of demodulators, each of the plurality of demodulators receiving signals from one of a plurality of transmission bands, the plurality of transmission bands being transmitted on a single differential conductive pair; and a cross-channel interference canceller coupled to the plurality of demodulators, the cross-channel interference canceller coupled to receive the signals from all of the plurality of transmission bands transmitted on the differential conductive pair. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method of transmitting data, comprising:
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receiving a transmitted signal from a single conductive pair into a plurality of demodulators; each of the plurality of demodulators down-convening the transmission signal by a set carrier frequency to receive one of a plurality of transmission bands; and cancelling the cross-channel interference in each of the plurality of demodulators by correcting each received signal corresponding to the plurality of transmission bands with signals received from all of the other ones of the plurality of demodulators. - View Dependent Claims (37, 38, 39, 40)
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41. A transmission system, comprising:
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means for transmitting data into multiple channels on a single differential conductive pair, each of the multiple channels having a carrier frequency; means for receiving data from the single differential conductive pair; means of down-convening data from each of the multiple channels; means for digitizing the data from each of the multiple channels; means for equalizing the data from each of the multiple channels to correct for intersymbol interference; means for correcting the data from each of the multiple channels for cross-channel interference, the means for correcting including means for receiving data from all of the other multiple channels; and means for providing recovered data based on the corrected and equalized data from each of the multiple channels.
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Specification