Patent ID: 7209007

Claim:
An apparatus including an analog signal gain controller and equalizer, at least a portion of which comprises: a first input signal electrode to convey a first input analog signal VI 1 ; operational amplifier circuitry including first and second input electrodes and first and second output electrodes, wherein said first operational amplifier circuitry output electrode is to convey a first output analog signal VO 1 , and a ratio VO 1 /VI 1 of said first output and input analog signals is proportional to frequency; and first equalization circuitry coupled to said first input signal electrode and said first operational amplifier circuitry, wherein said first equalization circuitry includes a first feedback impedance network coupled between said first operational amplifier circuitry input and output electrodes, a first input impedance network coupled to said first input signal electrode and having an impedance magnitude inversely proportional to frequency, a first input resistance coupled in parallel with said first input impedance network, and first input signal summing circuitry coupled between said first input impedance network and said first operational amplifier circuitry input electrode.