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Inventor: Higgins; Robert F.
Address: South Burlington, VT
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 8121812 |
AC magnetic tracking with phase disambiguation |
February 21, 2012 |
| A method and system for magnetic locating resolves phase ambiguity. The system uses time-division multiplexed magnetic fields emitted from plural transmit coils. The magnetic fields are alternating fields at a carrier frequency, and the fields emitted from different coils in different |
| 8013595 |
AC magnetic tracking system with phase locking |
September 6, 2011 |
| Plural transmitter coils of a magnetic locating system are driven with widely-separated main frequencies. One of the transmitter coils is also driven with a marker frequency close to the main frequency applied to that coil. The receiver determines a phase relationship with the transm |
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