Patent ID: 7660350

Claim:
A data receiver comprising: an automatic gain (AGC) control unit operable to amplify a signal received from a transmitter to a predetermined level, the AGC control unit including variable gain amplifier and a peaking amplifier; and a decision feedback equalizer operable to perform adaptive equalization of the signal, the data receiver being operable to receive the signal controllably pre-distorted and transmitted by the transmitter, to generate adjustment information for adjusting the pre-distortion applied to the signal transmitted by the transmitter, and to transmit the adjustment information to the transmitter for use in adjusting tap coefficients of a feed forward equalizer (FFE) of the transmitter, wherein in a first mode of operation, the variable gain amplifier is operable to amplify the received signal to a predetermined level and the peaking amplifier is operable to amplify substantially without peaking, and in a second mode, the variable gain amplifier is operable to amplify with fixed gain and the peaking amplifier is operable to amplify with peaking.