Patent ID: 8401205

Claim:
A noise canceling system, comprising: a first sound collection section provided on a housing to be attached to an ear portion of a user and configured to collect noise and output a first noise signal; a first signal processing section configured to produce a first noise reduction signal for reducing the noise at a predetermined cancel point based on the first noise signal, wherein the noise corresponds to sound between approximately 80 and 300 Hz collected by the first sound collection section; a second sound collection section provided on a sound emission direction side of said housing to be attached to the ear portion of the user with respect to said sound emission section and configured to collect noise and output a second noise signal; a second signal processing section configured to produce a second noise reduction signal for reducing noise at the cancel point based on the second noise signal; a synthesis section configured to synthesize a synthesized signal with the first noise reduction signal, the second noise reduction signal, and an input sound; an amplifier configured to amplify the synthesized signal; and a sound emission section provided on the sound emission direction side with respect to said first sound collection section and configured to emit the amplified synthesized signal.