Patent ID: 8611937

Claim:
An FM reception device comprising: a first detection part configured to detect a field intensity of an FM wave; a second detection part configured to detect a multipath noise level on a frequency band region of said FM wave; an adaptive filter part configured to selectively perform filtering processing upon an intermediate frequency signal according to said FM wave by using a selected filter, when either one of a finite impulse response type filter or an infinite impulse response type filter is selected responding to a filter selection instruction; and a first control part configured to send a instruction to choose said finite impulse response type filter as said filter selection instruction to said adaptive filter part, when a first condition is satisfied that the field intensity detected by said first detection part is lower than a predetermined field intensity; or when a second condition is satisfied that the field intensity detected by said first detection part is not lower than said predetermined field intensity, and it is decided that the multipath noise level is lower than a first predetermined multipath noise level and the multipath noise level is not lower than a second predetermined multipath noise level, which is lower than the first predetermined multipath noise level.