Selective fading protection system

Details Selective fading protection system Selective fading protection system

H - Electricity

04

L

340/74

H04L 1/00 (2006.01) H04B 7/005 (2006.01) H04L 5/02 (2006.01) H04L 25/03 (2006.01) H04L 25/497 (2006.01) H04L 27/10 (2006.01) H04L 27/26 (2006.01)

Patent

CA 1226347

ABSTRACT The invention is a selective fading protection system for a parallel channel data transmission system. The system comprises an equalizer provided in each channel and adapted for equalizing received data; an error correcting circuit for correcting errors in the received data in at least one channel; a comparator corresponding to each channel and adapted to deliver a first signal when the level of the received data in a channel has come down below a predetermined first threshold level; and a controller adapted to operate in response to the first signal so as to deliver, as a reference data, the correct data after correction by the error correcting circuit to the equalizer of a channel having the comparator from which the first signal has been outputted, and to effect a supervised-learning operation for correcting the coefficient of the equalizer so as to reduce the difference between the reference data and the output from the equalizer.

461840

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