Communications – electrical: acoustic wave systems and devices – Underwater system – Analog speech communication
Patent
1995-10-10
1996-11-26
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Underwater system
Analog speech communication
340850, H04B 1100
Patent
active
055792847
ABSTRACT:
An underwater scuba diver communication system is disclosed which is comprised of an oral bone conduction mouthpiece based sound transmission and conduction device, an oral--mouthpiece based microphone, an ultrasonic sound transmission device, an ultrasonic receiving device and the electronic circuitry required to facilitate the transmission or reception of ultrasound transmitted signals through a water medium. The system is constructed to provide underwater diver voice communication with a modified scuba mouthpiece not unlike in appearance or function from a conventional second stage mouthpiece for a scuba diver breathing apparatus. This mouthpiece can also be configured to provide binaural input and/or output with two different transducers for locating sound direction underwater.
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