Data processing: measuring – calibrating – or testing – Measurement system – Orientation or position
Reexamination Certificate
2011-05-23
2011-11-29
Lau, Tung S (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Orientation or position
Reexamination Certificate
active
08069006
ABSTRACT:
A system for determining coordinates for nodes on a wire secured to tow lines of a floating vessel for analyzing geological formations is provided. The system can include sensors in communication with a processor to determine the coordinates of nodes and provide azimuths tangential to the wire. A library of nominal values for third, fourth, or fifth order polynomial coefficients, a library of known distances along the wire, and a library of preset limits can be stored in a data storage. The system can include computer instructions to receive sensor information, compute bearing, reorient the coordinates, rotate the azimuth, construct a third, fourth, or fifth order polynomial algorithm, compute the azimuth, form a residual, compute updated differences until the residual is within preset limits, calculate local coordinates for nodes, and rotate the local coordinates from the local coordinate system to the projected coordinate system.
REFERENCES:
patent: 6700835 (2004-03-01), Ward et al.
patent: 7221620 (2007-05-01), Planke et al.
Hardy Brian
Hise Alfred L.
Majzlik Edward
Buskop Wendy
Buskop Law Group PC
Lau Tung S
NCS Subsea, Inc.
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