Filtering apparatus and method using reference feedback circuit of wireless communication system

Abstract

A filtering apparatus and method using a reference feedback circuit is disclosed. The filtering apparatus includes an input signal generating unit, a reference feedback unit, and a band-pass filter. The input signal generating unit generates an input signal in an allocated band that the receiver uses. The reference feedback unit compares the power of the input signal with that of an output signal and generates a reference signal. The output signal is generated as a band-pass filter filters the input signal with respect to the allocated band. The band-pass filter adjusts the quality factor (Q factor) of a receiver according to the reference signal and passes frequencies of the input signal input to the receiver only within the allocated band.

Dependencies are inferred from the claim text.