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Mutual induction correction for radiator coils of an objects tracking system

  • US 6,177,792 B1
  • Filed: 03/19/1999
  • Issued: 01/23/2001
  • Est. Priority Date: 03/26/1996
  • Status: Expired due to Term
First Claim
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1. Apparatus for tracking an object by generating magnetic fields, comprising:

  • a plurality of radiator coils;

    driver circuitry coupled thereto, which drives the coils so as to generate magnetic fields at a plurality of driving frequencies, wherein each of the plurality of radiator coils generates a field substantially only at a single, respective driving frequency; and

    circuitry associated with at least one of said plurality of radiator coils for substantially eliminating magnetic fields generated by the at least one coil in response to fields generated by the other coils.

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