H - Electricity – 04 – L
Patent
H - Electricity
04
L
340/73
H04L 1/00 (2006.01)
Patent
CA 2004503
ABSTRACT In a data recovery system comprising a receiver filter for match filtering and equalizing a signal received from a data transmission or storage channel, and a combined dicode and partial response filter for automatic gain controlling and subsequent detection of the matched filtered equalized data signal and in response generating an output signal, the improvement comprising a combination of peak/power detector for detecting amplitude of the output signal and in response generating an amplitude/power output signal, a lowpass filter for filtering the amplitude/power output signal and in response generating a filtered output signal, an averager for averaging the amplitude/power output signal and in response generating an averaged amplitude/power output signal, a differential amplifier for subtracting the averaged power output signal from the filtered output signal and in response generating a difference signal, and an equalizer connected to an output of the receiver filter and an input of the combined dicode and partial response filter for receiving the difference signal and in response dynamically equalizing the equalized and matched filtered data signal in accordance with dynamic channel response variations in the combined dicode and partial response filter.
Institute For Space And Terrestrial Science (the)
Sim & Mcburney
The Centre For Research In Earth And Space Technology
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