Acoustic communication system
Acoustic transducer for sending and receiving acoustic communica
Control system for diver VOX/PTT communication system
Device forming a snorkel mouthpiece or diving regulator
Helium-speech communication
Integrated diver face mask and ultrasound underwater voice commu
Portable and hand-held device for making humanly audible...
Scuba diving voice and communication system using bone conducted
Scuba diving voice and communication system using bone conducted
Single-sideband acoustic telemetry
Synchronous/asynchronous independent single sideband acoustic te
Ultrasonic speech translator and communications system
Underwater audio communication system using bone conducted sound
Underwater audio intercommunication system
Underwater communication apparatus and underwater microphone, an
Underwater communication device
Underwater communication system
Underwater communicator