Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2008-01-22
2008-01-22
Assouad, Patrick (Department: 2862)
Electricity: measuring and testing
Magnetic
Displacement
C324S207120, C702S095000, C702S150000
Reexamination Certificate
active
07321228
ABSTRACT:
A method for tracking an object includes producing energy fields at a plurality of different frequencies in a vicinity of the object, and receiving signals that are generated at a location of the object at the different frequencies in response to the energy fields. Multiple computations are made of spatial coordinates of the object based on the signals received at the different frequencies. Convergence of the computations is tested in order to ascertain whether the energy fields have been perturbed by an article in the vicinity of the object.
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Assouad Patrick
Biosense Webster Inc.
Capezzuto Louis J.
Schindler David M
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