Ultrasonic speech translator and communications system
Underwater acoustic transmission method and equipment to improve
Underwater alert system
Underwater alert system
Underwater audio communication system using bone conducted sound
Underwater audio intercommunication system
Underwater communication apparatus and communication method
Underwater communication apparatus and underwater microphone, an
Underwater communication device
Underwater communication device
Underwater communication system
Underwater communication system
Underwater communication system
Underwater communication system
Underwater communication system
Underwater communication system by means of coded pulses
Underwater communicator
Underwater control system
Underwater data communication and instrument release...
Underwater depth telemetry