Patent ID: 6819166
Filing Date: 2004-11-16
Classification: H04L

Abstract:
An adaptive equalization circuit that implements a joint adaptation algorithm to generate an equalized signal in response to an input signal, said adaptive equalization circuit including:a low-frequency tuning loop including a low-frequency filter coupled and configured to apply a first controllable gain to one of the input signal and low-frequency components of the input signal, wherein the low-frequency tuning loop is configured to control the gain applied by the low-frequency filter to said one of the input signal and the low-frequency components of the input signal; and a high-frequency tuning loop including a high-frequency filter coupled and configured to apply a second controllable gain to high-frequency components of the input signal, wherein the high-frequency tuning loop is configured to control the gain applied by the high-frequency filter to the high-frequency components of the input signal, wherein the low-frequency filter and the high-frequency filter share at least one shared circuit element, and the shared circuit element has at least one output at which the equalized signal is asserted.