Patent ID: 6731703
Filing Date: 2004-05-04
Classification: H03G,H04B,H04W

Abstract:
A reception power level calculating circuit for a receiver comprising an AGC amplifier for amplifying received signal, a demodulating circuit for demodulating the output of the AGC amplifier, an analog-to-digital converter for converting the demodulation output of the demodulating circuit to a digital signal, a filter for attenuating the digital output of the analog-to-digital converter outside a desired frequency band, a base-band circuit for base-band processing the output of the filter, an AGC control reception power level calculating means for calculating a reception power level to generate a control signal for controlling the AGC amplifier, an attenuated power level calculating means for calculating the power level having been attenuated in the filter, and a power level correcting means for correcting the result of calculation in the AGC control reception power level calculating means with the result of calculation in the attenuated power level calculating means and reporting the corrected power level to the base-band circuit.