Calibrating a magnetic transmitter

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United States of America Patent

PATENT NO 11493318
APP PUB NO 20210123714A1
SERIAL NO

17139520

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A calibration device comprising: a plurality of magnetic sensors positioned at the calibration device, the plurality of magnetic sensors defining a space; a controller configured to be positioned in the space defined by the plurality of magnetic sensors, wherein the controller includes a magnetic transmitter; and one or more processors configured to: cause the magnetic transmitter to generate magnetic fields; receive signals from the plurality of magnetic sensors that are based on characteristics of the magnetic fields received at the plurality of magnetic sensors; calculate, based on the signals received from the plurality of magnetic sensors, positions and orientations of the plurality of magnetic sensors relative to a position and orientation of the magnetic transmitter; and determine whether the calculated positions and orientations of the plurality of magnetic sensors are within one or more threshold limits of known positions and orientations of the plurality of magnetic sensors.

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Patent Owner(s)

  • NORTHERN DIGITAL, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Durfee, Joseph Bruce Colchester, US 2 2
Robertson, Charles Shelburne, US 19 92
Schneider, Mark Robert Williston, US 15 124

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