G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 3/033 (2006.01) G06F 3/03 (2006.01) G06K 11/16 (1995.01)
Patent
CA 2087768
A sensor grid system (10), and a method of operating a sensor grid system, having a first array of inductors (14a) and a second array of inductors (14b). The first and the second arrays are each responsive to a moveable coil (18) that transmits an electromagnetic signal for having a detectable signal induced therein. The method includes a first step of determining an expected position of the coil relative to an array of inductors. A next step selects a pair of inductors that are located near to the expected position. A third step measures the signals induced into the pair of inductors, and a fourth step, based on the measurement step, determines any additional inductors from which measurements are required to interpolate the actual position of the coil. A fifth step measures the signals induced into the determined ones of the additional inductors, and a sixth step computes and reports the actual position of the coil based on the results of the first and the second steps of measuring. Significantly, the pair of inductors and the additional inductors include all inductors that are required to compute the actual position of the coil, and includes no inductors that are not required to compute the actual position of the coil.
International Business Machines Corporation
Rosen Arnold
LandOfFree
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