Relaxed, more optimum training for modems and the like

Details Relaxed, more optimum training for modems and the like Relaxed, more optimum training for modems and the like

2005-08-23

2005-08-23

Corrielus, Jean B. (Department: 2637)

Pulse or digital communications

Equalizers

Automatic

C708S323000

Reexamination Certificate

active

06934328

ABSTRACT:
A high-speed broadband, wireline modem including an adaptive equalizer having both a training mode and a decision-directed non-training mode. The adaptive equalizer comprising at least one of a forward path coupled to receive signal samples, the forward path including a forward filter and a decision element, and a feedback path coupled between an output of the decision element and an input of the decision element, the feedback path including a feedback filter; and means for adapting the one of said forward filter and said feedback filter based on a least squares error criterion performed substantially according to a predetermined algorithm.

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Falconer, David D, and Ljung, Lennart, “Application of Fast Kalman Estimation to Adaptive Equalization,” IEEE Trans. on Comm., COM-26, No. 10 (Oct. 1978).
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