Marine transponder system

Details Marine transponder system Marine transponder system

1988-08-04

1990-02-20

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Transponders

Sonobuoys and sonobuoy systems

367 2, H04B 159

Patent

active

049032437

ABSTRACT:
A marine transponder system which is selectively activated to produce a predetermined signal pattern of light/sound/radio transmissions for maritime devices and structures such as navigational aids, mooring, docking or slip facilities and/or EPIRBs and other emergency signalling devices. A remote transmitter is used to broadcast an uncoded or coded signal at a predetermined frequency to activate the marine transponder system. The transponder system includes an RF receiver tuned to the predetermined frequency, and optionally a decoder unit for verifying the coded signal. Upon receipt of the transmitted frequency signal, the transponder system causes an omni-directional light/sound/radio source to be energized to produce the predetermined signal pattern. The marine transponder system may be an add-on adapted for integration with existing navigational buoys, a standalone buoy, a package configured for mounting on a dock, pier or boat, or a package adapted to be mounted on a life vest/preserver. This system permits quick and positive user identification and location of a desired, unknown locus and avoids continuous power usage.

REFERENCES:
patent: 3860900 (1975-01-01), Scudder
patent: 4126822 (1978-11-01), Wahlstrom
patent: 4492875 (1985-01-01), Rowe
patent: 4763126 (1988-08-01), Jawetz
patent: 4781144 (1988-11-01), O'Brien

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