Multiple channel gated amplifier system
Multipurpose headphone assembly
Music speech filter
Passive voice-activated microphone and transceiver system
Signal sensing circuit
Simplified communication system
Speech recognition system
Standby power circuit arrangement
Voice activated microscope
Voice operated switch for use in high noise environments
Voice-actuated switching system
Voice-controlled timing and calculating device
Voice-data processing circuit and voice-data processing method
Voice-operated remote control system
Voice-operated remote control system
Voice-operated remote control system
VOX circuit with 2-wire interfaces