Fetal speaker system and support belt for maternal wear
Fireman's safety apparatus
Frequency warping for improving resonator signal-to-noise ratio
Hair dryer with integral stereo audio system
Headset for ambient noise suppression
High gain acoustic transducer
High noise communication system
IFB system apparatus and method
Impulse noise reducer detecting impulse noise from an audio...
Integrated circuit device and audio system
Intelligent automatic threshold circuit
Interference suppression techniques
Isolator circuit for an audio system
Listening device
Loudspeaker thermal management structure
Low distortion audio muting circuit
Low sound region reproducing speaker system
Lower sideband modulation distortion cancellation
Mechanical resonance reducing
Method and apparatus for audio signal processing