초록 ▼

A sound cancellation system wherein a pair of sensors and actuators are positioned immediately adjacent an associated ear of an inhabitant of an enclosure so as to provide a cancellation zone immediately adjacent an associated ear without interfering with adjacent zones. A controller receives a sync

A sound cancellation system wherein a pair of sensors and actuators are positioned immediately adjacent an associated ear of an inhabitant of an enclosure so as to provide a cancellation zone immediately adjacent an associated ear without interfering with adjacent zones. A controller receives a synchronization signal so as to cancel a selected noise associated with a synchronization signal. The sensors and actuators are mounted to a seat which is to be occupied by an inhabitant of the enclosure.

대표청구항 ▼

An active noise attenuation system for attenuating selected noise at selected areas about an individual comprising: synchronization means for producing a synchronization signal for a source of noise to be attenuated; first and second acoustic actuators respectively mounted proximate each ear of the

An active noise attenuation system for attenuating selected noise at selected areas about an individual comprising: synchronization means for producing a synchronization signal for a source of noise to be attenuated; first and second acoustic actuators respectively mounted proximate each ear of the individual; first and second acoustic sensors respectively mounted between a corresponding one of said first and second acoustic actuators and a respective ear of the individual to be adjustably positionable in a lateral direction between said first and second acoustic actuators and the respective ear of the individual to accurately sense the sound adjacent the respective ear; and control means for independently controlling said first and second acoustic actuators using said synchronization signal and sounds sensed by the respective said first and second acoustic sensors to cancel the noise from said source of noise in a selected area limited to the individual without adversely affecting other locations in the vicinity.