The presently described technology provides a method for simultaneously employing two or more coil architectures in an electromagnetic tracking system. The method includes providing a transmitter that includes three single-coil transmitters, one or more receivers each including three single-coil receivers,...http://www.google.co.uk/patents/US20060106292?utm_source=gb-gplus-sharePatent US20060106292 - System and method for employing multiple coil architectures simultaneously in one electromagnetic tracking system
