Electronic cancelling of acoustic traveling waves
Electronic compensation system for elimination or reduction of i
Electronic muffler
Electronic noise attenuation method and apparatus for use in eff
Electronic noise attenuation system
Electronic noise attenuation system
Energy absorption apparatus
Engine noise control apparatus
Extended frequency range Helmholtz resonators
Fast adapting control system and method
First draft-switching controller for personal ANR system
Frequency domain adaptive control system
Global quieting system for stationary induction apparatus
Hands free noise canceling headset
Headset noise reducing
Headset with ear cushion and means for limiting the...
Hearing aid suitable for use under noisy circumstance
Hybrid active silencer
Indirectly sensed signal processing in active periodic acoustic
Industrial headset