Underwater acoustic control system

Details Underwater acoustic control system Underwater acoustic control system

1973-11-29

1991-02-12

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Transponders

367135, H04B 159

Patent

active

049929887

ABSTRACT:
An underwater acoustic control system for use in a subsurface unit receiv coded signals. A hydrophone receives the signal and enables an electronics package to supply a control pulse which could activate a switch or fire a squib. A timer is included in the package to provide a delayed turn-on of the receiver circuit for as long a period as desired.

REFERENCES:
patent: 3572244 (1971-03-01), Garber
patent: 3638174 (1972-01-01), Haase et al.
patent: 3741124 (1973-06-01), Visk
patent: 3742440 (1973-06-01), Ehrlich et al.

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