| US 7,532,901 B1 | ||
| Methods and apparatus to detect location and orientation in an inductive system | ||
| Jeffrey R. LaFranchise, Newburyport, Mass. (US); Vincent Palermo, Westford, Mass. (US); and Charles M. Marshall, North Andover, Mass. (US) | ||
| Assigned to Radeum, Inc., Orem, Utah (US) | ||
| Filed on Feb. 18, 2004, as Appl. No. 10/782,541. | ||
| Application 10/782541 is a continuation in part of application No. 10/100229, filed on Mar. 15, 2002, abandoned. | ||
| Application 10/100229 is a continuation in part of application No. 10/004989, filed on Dec. 03, 2001, granted, now 7,142,811. | ||
| Application 10/004989 is a continuation in part of application No. 09/942372, filed on Aug. 29, 2001, abandoned. | ||
| Claims priority of provisional application 60/448560, filed on Feb. 19, 2003. | ||
| Claims priority of provisional application 60/301529, filed on Jun. 28, 2001. | ||
| Claims priority of provisional application 60/296229, filed on Jun. 06, 2001. | ||
| Claims priority of provisional application 60/276398, filed on Mar. 16, 2001. | ||
| Int. Cl. H04W 24/00 (2009.01) | ||
| U.S. Cl. 455—456.6 [455/575.2; 178/19.04] | 55 Claims |
| 1. A method of detecting a position of a first transducer assembly with respect to a second transducer assembly, the method
comprising:
at the first transducer assembly, receiving magnetic field signals from the second transducer assembly, the magnetic field
signals including communication data; and
based on magnitudes of the magnetic field signals received on the first transducer assembly, identifying a position in space
of the first transducer assembly with respect to the second transducer assembly, the first transducer assembly including M
uniquely oriented transducers, where M is an integer equal to one or more, the second transducer assembly including N uniquely
oriented transducers, where N is an integer equal to one or more; and
wherein the M uniquely oriented transducers in the first transducer assembly are substantially orthogonal with respect to
each other and the N uniquely oriented transducers in the second transducer assembly are substantially orthogonal with respect
to each other.
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