Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Patent
1997-05-01
1998-03-24
Issing, Gregory C.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
342454, 340323R, G01S 502, H04B 785, G08B 2300
Patent
active
057317887
ABSTRACT:
A system and method for positioning control and management of racing sailboat positions and velocities includes the strategic placement of global positioning receivers and transmitters at a buoy and committee boat marking the sail race start line, as well as radio and global positioning receivers on the sailboat. Global positioning system (GPS) and radio transmitter units are mounted on a race start buoy and committee boat and another GPS and radio transceiver unit receives GPS signals from positioning satellites and radio signals from the race start buoy and committee boat. The information received by the racing sailboat is processed to determine relative and absolute positions and velocities, and estimated time of arrival (ETA) at the intercept between current sailboat course and the race start line for display in user-friendly race management.
REFERENCES:
patent: 3890463 (1975-06-01), Ikegami et al.
patent: 5191341 (1993-03-01), Gouard et al.
patent: 5202829 (1993-04-01), Geier
patent: 5307074 (1994-04-01), Janex
patent: 5317321 (1994-05-01), Sass
patent: 5422816 (1995-06-01), Sprague et al.
patent: 5452262 (1995-09-01), Hagerty
Issing Gregory C.
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