Method for determining, recording and sending GPS location...

Details Method for determining, recording and sending GPS location... Method for determining, recording and sending GPS location...

2005-09-06

2005-09-06

Black, Thomas G. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

C367S040000, C367S131000

Reexamination Certificate

active

06941226

ABSTRACT:
Underwater position determination is provided by combining sonar-derived ranging data between a sonar receiver and a sonar transmitter with GPS position data to provide geographically-referenced position data accurately representing the position of a sonar receiver carried or worn by a diver or submersible vehicle. Function and accuracy enhancements are provided to compensate for diver and sonar transmitter and depth difference and differences of sonar signal propagation speed as well as several techniques of compensation for change of position of the GPS receiver and for logging diver and/or vehicle path.

REFERENCES:
patent: 5119341 (1992-06-01), Youngberg
patent: 5231609 (1993-07-01), Gaer
patent: 5331602 (1994-07-01), McLaren
patent: 5838816 (1998-11-01), Holmberg
patent: 6163503 (2000-12-01), Gudbjornsson
patent: PCT/US01/20064 (2001-06-01), None

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