Patent ID: 6831955
Filing Date: 2004-12-14
Classification: H03B,H04B

Abstract:
A noise generator comprising:a first noise source for generating a predetermined noise signal; a second noise source for generating a predetermined noise signal; a first amplification circuit for amplifying the noise signal generated from said first noise source at a predetermined amplification factor; a second amplification circuit for amplifying the noise signal generated from said second noise source at a predetermined amplification factor; a first filter circuit for extracting a first noise signal contained in a predetermined frequency band from the noise signal amplified by said first amplification circuit; a second filter circuit for extracting a second noise signal contained in a predetermined frequency band from the noise signal amplified by said second amplification circuit; and a modulation circuit for modulating the first noise signal extracted through said first filter circuit and the second noise signal extracted through said second filter circuit and outputting a noise signal of a desired frequency band.