Patent ID: 7088794

Claim:
An automatic gain control radio frequency (RF) signal processor, comprising: an attenuator having an input for receiving an analog RF input signal, an output for applying an attenuated output signal, and a variable gain control input; an amplifier having an input coupled to the attenuator output and an output; a bandpass filter having an input coupled to the amplifier output and an output; a single analog to digital (ADC) having an input coupled to the bandpass filter output and an output for providing a digitized ADC signal; a digital logic circuit having an Input for receiving the ADC signal, a first output coupled to the variable gain control Input of said attenuator, and a second output, said digital logic circuit including signal detection logic for detecting the presence of a pulse within the ADC signal, determining a peak amplitude value of the pulse, and based on the peak amplitude value generating an attenuation value at said first output that is applied to the variable gain control input of said attenuator; and a first in first out (FIFO) buffer having an input coupled to the second digital logic circuit output and an output for producing an attenuated, gain controlled, digitized output.