Patent ID: 8417203
Filing Date: 2013-04-09
Classification: H03G

Abstract:
1. A receiver comprising: a variable gain amplifier for amplifying an input signal in a set gain; a peak detector for detecting instantaneous peak power PDout of output of the variable gain amplifier; a first power determiner for comparing the instantaneous peak power PDout with a threshold value PDETL; a second power determiner for comparing the instantaneous peak power PDout with a threshold value PDETH larger than the threshold value PDETL; and an amplitude density calculator for controlling a value of the gain of the variable gain amplifier based on amplitude density determined from output results of the first power determiner and the second power determiner, wherein the amplitude density indicates respective percentages that the instantaneous peak power PDout of the input signal correspond to respective power areas specified by at least the threshold values PDETH and PDETL.