Patent ID: 8731024

Claim:
A noise suppression apparatus for suppressing an amplitude of noise generated in a reception apparatus, comprising: at least one offset correction unit that corrects changes in a DC offset generated by hopping of radio frequencies; at least one noise elimination unit that suppresses the amplitude of said noise generated in said at least one offset correction unit and that is provided with switches that turn ON and OFF in synchronization with said hopping of radio frequencies, and an amplitude suppression unit that is connected between two differential output lines of said at least one offset correction unit by way of said switches; and a control unit that turns ON said switches during an interval when said radio frequency is changing, but turns OFF said switches during an interval when said radio frequency is fixed, wherein said at least one noise elimination unit includes said amplitude suppression unit and said switches, wherein said noise is generated in said at least one offset correction unit during the interval when said radio frequency is changing in said hopping of radio frequencies.