Compact speakerphone apparatus

Compact subwoofer with exceptional low frequency response

Compander circuit

Companding amplifier with sidechannel gain control

Companding noise reduction system with simultaneous encode...

Compatible AM broadcast/data transmisison system

Compatible matrix-encoded surround-sound channels in a...

Compatible multi-channel coding/decoding by weighting the...

Compatible multivoice broadcasting receiver

Compatible quadrature amplitude modulation detector system

Compatible transmission techniques for FM stereophonic radio and

Compensating filters

Compensating filters

Compensating filters

Compensating filters

Compensation network for loudspeakers

Compensation system and method for sound reproduction

Compensation system for planar loudspeakers

Complementary-pair equalizer

Complex acoustic path and gasket for use with microphones