Adaptive analog parallel combiner

An adaptive analog parallel combiner circuit for receiver data recovery from a communication signal, comprising:

• a summer that sums outputs of a plurality of filter taps in parallel, including zeroth and first through Nth filter taps, each filter tap having as input the communication signal or a version thereof, wherein N is a finite integer greater than or equal to two;
• the zeroth filter tap having an amplifier with gain controlled by a zeroth adaptive gain control coefficient;
• and
• each of the first through Nth filter taps having a low pass filter and gain controlled amplification, with gain controlled by a corresponding one of a first through Nth adaptive gain control coefficients and the low pass filter implementing a transfer function having a pole at a base frequency divided by a corresponding integer from one through N.

A method for receiver data recovery from a communication signal, practiced by an adaptive analog parallel combiner circuit, the method comprising:

• controlling gain of an amplifier in a zeroth filter tap by a zeroth adaptive gain coefficient, with the communication signal or a version thereof as input to the zeroth filter tap;
• controlling gain of an amplifier in each of first through Nth filter taps by a corresponding one of a first through Nth adaptive gain coefficients, with the communication signal or the version thereof as input to each of the first through Nth filter taps;
• low pass filtering in each of the first through Nth filter taps, the low pass filtering having a transfer function with a pole at a base frequency divided by a corresponding integer from one through N;
• and
• summing outputs of the zeroth through Nth filter taps, to produce a data signal recovered from the communication signal.