Parallel adaptive equalizer circuit

A method of reconstructing a signal transmitted over a length of cable comprising the steps of:

• a. splitting a transmitted signal into two intermediate signals and coupling the two intermediate signals to any two of at least three equalization paths wherein the two equalization paths are selectively active and any remaining equalization paths are not active, each equalization path optimized for the reconstruction of a transmitted signal over a specific length of cable, wherein a first partially reconstructed signal is provided by a first of the active two of the equalization paths and a second partially reconstructed signal is provided by a second of the active two of the equalization paths;
• b. summing the first and second partially reconstructed signals thereby forming a reconstructed output signal;
• and
• c. monitoring the reconstructed output signal and adjusting the splitting of the transmitted signal according to a level of the reconstructed output signal.

A signal reconstruction circuit for reconstructing a transmitted signal comprising:

• a. a plurality of serially coupled equalizer circuits wherein a first one of the plurality is coupled to receive the transmitted signal and a last one of the plurality outputs a reconstructed output signal wherein each of the serially coupled equalizer circuits comprises a multipath adaptive equalizer circuit having:
• i. at least three equalization paths, each optimized for the reconstruction of a transmitted signal over a specific length of cable;
• ii. means for receiving an input signal;
• iii. means for splitting coupled to the equalization paths and to the means for receiving, which splits the input signal into two intermediate signals and couples the intermediate signals to any two of the equalization paths, wherein the two equalization paths are selectively active and any remaining equalization paths are not active and wherein a first partially reconstructed signal is provided by a first one of the active two equalization paths and a second partially reconstructed signal is provided by a second one of the active two equalization paths;
• and
• iv. means for summing the first partially reconstructed signal and the second partially reconstructed signal;
• and
• b. means for controlling coupled to each of the plurality for controlling equalization of each of the plurality by monitoring the reconstructed output signal, comparing it to an expected signal and controlling equalization of each of the plurality.