Nonlinear equalizer
AssigneeFinisar Corporation
InventorsThang Pham, Chengpin Yu
Life of this patent
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Abstract
An equalizer and method is implemented to improve the performance of a communication system based on multi-level amplitude modulation schemes. The equalizer may include a linear equalization circuit including a plurality of time delayed taps and configured to receive an input signal and generate an output signal. The equalizer may further include a nonlinear circuit configured to receive signals from at least a portion of the time delayed taps and generate at least a portion of a difference between the signals, the output signal based at least in part on the difference.
Claims20
A nonlinear equalizer, comprising:
- a linear equalizer circuit including a plurality of time delayed taps and configured to receive an input signal and generate an output signal;
- and
- a nonlinear circuit configured to receive signals from at least a portion of the time delayed taps and generate at least a portion of a difference between the signals, the output signal based at least in part on the difference.
A method, comprising:
- linearly equalizing a plurality of time delayed taps including receiving an input signal and generating an output signal;
- and
- nonlinearly equalizing signals from at least a portion of the time delayed taps and generating at least a portion of a difference between the signals, the output signal based at least in part on the difference.
A nonlinear equalizer, comprising:
- means for linearly equalizing a plurality of time delayed taps including receiving an input signal and generating an output signal;
- and
- means for nonlinearly equalizing signals from at least a portion of the time delayed taps and generating at least a portion of a difference between the signals, the output signal based at least in part on the difference.
Dependencies are inferred from the claim text.