Buoy-to-sailboat distance indicator system

Details Buoy-to-sailboat distance indicator system Buoy-to-sailboat distance indicator system

2006-04-18

2006-04-18

Lobo, Ian J. (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

With electromagnetic wave

C367S002000, C367S118000

Reexamination Certificate

active

07031224

ABSTRACT:
This system is intended for use during a regatta to indicate the distance between a sailboat and a race course marker buoy being rounded as part of the race. The system involves a transmitter on the buoy and a receiver on the boat. The buoy transmitter sends both a radio signal and an acoustic signal. The boat receiver detects both the radio signal and acoustic signal. The boat receiver measures the time delay between the radio and acoustic signals. This time duration is converted to a distance and the boat receiver displays the distance information.

REFERENCES:
patent: 2326880 (1943-08-01), Norrman
patent: 4207571 (1980-06-01), Passey
patent: 4234942 (1980-11-01), Prause et al.
patent: 4751689 (1988-06-01), Kobayashi

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