Analog N-tap FIR receiver equalizer

Details Analog N-tap FIR receiver equalizer Analog N-tap FIR receiver equalizer

2007-01-23

2007-01-23

Ha, Dac V. (Department: 2634)

Pulse or digital communications

Equalizers

Automatic

C375S350000, C708S819000

Reexamination Certificate

active

09863081

ABSTRACT:
An equalizer includes plural samplers for sampling an incoming input data stream according to plural phases of a sampling clock, each sampler producing a data sample. Operating in the analog domain, a multi-tap finite impulse response (FIR) filter weights the data samples and combines the weighted data samples to produce a filtered data bit. The filtered data bits thus form an equalized output data stream. The equalizer can compensate for characteristics of a communications channel, such as low-pass characteristics. The channel may carry high-speed, e.g., multi-gigabit per second, traffic.

REFERENCES:
patent: 5907295 (1999-05-01), Lin
patent: 5931898 (1999-08-01), Khoury

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