Demodulator for a multi-pair gigabit transceiver
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United States of America Patent
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Mar 16, 2004
Grant Date -
Apr 12, 2001
app pub date -
Nov 30, 2000
filing date -
Nov 13, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A feedforward equalizer for equalizing a sequence of signal samples received by a receiver from a remote transmitter. The feedforward equalizer has a gain and is included in the receiver which includes a timing recovery module for setting a sampling phase and, a decoder. The feedforward equalizer comprises a non-adaptive filter and a gain stage. The non-adaptive filter receives the signal samples and produces a filtered signal. The gain stage adjusts the gain of the feedforward equalizer by adjusting the amplitude of the filtered signal. The amplitude of the filtered signal is adjusted so that it fits in the operational range of the decoder. The feedforward equalizer does not affect the sampling phase setting of the timing recovery module of the receiver.
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