COOKER HOOD WITH FUNCTION OF ACTIVE NOISE CANCELLATION

ACTIVE SOUND-CANCELLATION SYSTEM FOR AN OPEN FLUID-DUCT

Silent device for air conditioning equipment

Fan control system and method for noise cancellation

Noise cancellation using segmented, frequency-dependent phase cancellation

Noise cancellation using segmented, frequency-dependent phase cancellation

Active duct noise control system and method thereof

APPARATUS FOR NATURAL VENTILATION OF A ROOM

Electrical power generator with active noise cancellation in ventilation ducts

Noise cancellation using segmented, frequency-dependent phase cancellation

System and method for actively influencing sound

Signal processing device, program, and range hood system

Acoustic detection in process environments

Sound generator for an anti-noise system for influencing exhaust noises and/or intake noises of a motor vehicle

System and method for attenuating noise from a fluid machine or a turbulent noise source

Active sound absorbers

Noiseless Motor Apparatus and Denoise Driver

Air conditioner

Operational noise control method for air conditioner

MUFFLED RACK AND METHODS THEREOF

Electronic device having active noise control with an external sensor

ELECTRONIC DEVICE HAVING ACTIVE NOISE CONTROL AND A PORT ENDING WITH CURVED LIPS

Excitation of air directing valves and air handling surfaces in the cancellation of air handling system noise

Active noise controller and projector using the same

Exhaust valve and active noise control for compact exhaust system

Noise control system for a ducted rotor assembly

Noise reduction system for in-wall HVAC systems