B - Operations – Transporting – 63 – H
Patent
B - Operations, Transporting
63
H
B63H 21/00 (2006.01) B63G 8/08 (2006.01) B63G 8/34 (2006.01) B63G 13/02 (2006.01) B63H 21/21 (2006.01) B64C 19/00 (2006.01) B64D 31/00 (2006.01) B64D 37/00 (2006.01) F42B 15/00 (2006.01) F42B 19/30 (2006.01)
Patent
CA 2306291
A power control system for driving a vessel (which may be manned or unmanned) is used to provide a series of pulse trains to the system wherein at least one pulse within each series of pulse trains provides a differing amount of power. Preferably, a portion of the series of pulse trains which has a duration of 10% of the duration of the pulse train delivers more than 20% of the total power to the drive member for the vessel which the drive member receives each cycle. In this way, the noise signature of a vessel is reduced or is varied to match the noise signature of another vessel or wildlife of a natural phenomenon.
Bereskin & Parr
Conrad Wayne Ernest
LandOfFree
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