Patent ID: 11944388
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A  G  H | IPC A  G  H

Claim 0:
1. A system comprising:
a plurality of antennae configured to generate a plurality of magnetic fields at different frequencies;
a plurality of sensors configured to measure the plurality of magnetic fields; and
a computing device configured to:
obtain first magnetic field vector measurements from the plurality of sensors for a portion of the plurality of antennae;
evaluate predetermined functions using the first magnetic field vector measurements to obtain first position and orientation information for the plurality of sensors;
obtain second magnetic field vector measurements from the plurality of sensors for the plurality of antennae; and
search, starting with the first position information, a simulated map for second position information of the plurality of sensors such that the difference between (a) the sum of simulated magnetic field vectors corresponding to the second position information and a plurality of interference magnetic field vectors, the sum being rotated according to orientation information, and (b) the second magnetic field vector measurements are minimized.