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* [[US20080174303A1]] - Anti-distortion electromagnetic sensor method and system
* [[US20080174303A1]] - Anti-distortion electromagnetic sensor method and system
* [[US20060262029A1]] - Method for fabricating an antenna
* [[US20060262029A1]] - Method for fabricating an antenna
+
* [[US7640121B2]] - System and method for disambiguating the phase of a field received from a transmitter in an electromagnetic tracking system
+
* [[US20090085559A1]] - System and method for minimizing electromagnetic field distortion in an electromagnetic tracking system
+
* [[US20080027311A1]] - Electromagnetic tracking system using resonant transponder using self-resonance of coil
==References==
==References==