An Active Muffler in the form of a duct having two open ends for conveying air from a within a cabinet to outside the cabinet. A fan or blower is incorporated in the duct. An Automatic Noise Control (ANC) unit is associated with the duct, and at least one microphone and at least one speaker are incorporated in to the duct for noise-reduction. An outer portion of the duct may be sound-absorbing material. the ANC unit may cause noise to be shifted to a frequency that can be absorbed by the sound-absorbing material.
申请公布号
WO2007099541(A3)
申请公布日期
2009.04.16
申请号
WO2007IL00269
申请日期
2007.03.01
申请人
SILENTIUM LTD.;BARATH, YOSSI;SUROV, MICHAEL;SLAPAK, ALON;ITNATI, MICHAEL
发明人
BARATH, YOSSI;SUROV, MICHAEL;SLAPAK, ALON;ITNATI, MICHAEL