Electromagnetic driver for a planar diaphragm loudspeaker

Electromagnetic driving unit for a loudspeaker assembly

Electromagnetic feedback reduction in communication device

Electromagnetic induction actuator and portable...

Electromagnetic induction type actuator device and mounting...

Electromagnetic interference suppressant assembly

Electromagnetic lever diaphragm audio transducer

Electromagnetic linear drive

Electromagnetic resonant vibrator

Electromagnetic sound generator

Electromagnetic sound producing device

Electromagnetic transducer

Electromagnetic transducer and portable communicating device

Electromagnetic transducer and portable communication device

Electromagnetic transducer and portable communication device

Electromagnetic transducer and portable communication device

Electromagnetic transducer for generating sound in hearing...

Electromagnetic transducer having a low reluctance return path

Electromagnetic transducer having multiple magnetic air gaps...

Electromagnetic transducer of improved efficiency