Patent ID: 7065133

Claim:
A communication receiver integrated circuit, comprising: an adaptive analog filter that receives an analog signal and amplifies a high frequency component of said analog signal according to a gain factor to produce an analog filtered signal; an analog-to-digital converter coupled to said adaptive analog filter, said analog-to-digital converter converting said analog filtered signal into a digital signal; a digital filter coupled to said analog-to-digital converter, said digital filter amplifying a high frequency component of said digital signal to produce a digital filtered signal; and a feedback control path coupled to said digital filter and said adaptive analog filter, said feedback control path adjusting said gain factor based on said digital filtered signal, wherein said feedback control path adjusts said gain factor such that an amount of amplification applied by said adaptive analog filter to said high frequency component of said analog signal varies directly with an amount of amplification applied by said digital filter to said high frequency component of said digital filtered signal.