Patent ID: 7936850
Filing Date: 2011-05-03
Classification: H03G

Abstract:
1. A radio frequency (RF) receiver comprising: an amplifier for amplifying an RF signal; a mixer circuit for converting the amplified RF signal to an in-phase intermediate frequency (IF) signal and a quadrature IF signal; an in-phase IF signal processing channel comprising a logarithmic analog to digital (A/D) converter to convert the in phase IF signal to a in-phase digital signal and an in-phase digital automatic gain control (AGC) for controlling an amplitude of the in-phase digital signal; a quadrature-phase IF signal processing channel comprising a logarithmic analog to digital (A/D) converter to convert the quadrature phase signal to a quadrature-phase digital signal and a quadrature-phase digital AGC for controlling an amplitude of the quadrature-phase digital signal; a baseband module for extracting information form the amplitude controlled in-phase digital signal and the amplitude controlled quadrature phase digital signal.