Method and apparatus for synchronizing a transmitter and receiver in a magnetic tracking system
US10234306B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2015 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Mar 2, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V7/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus is disclosed for synchronizing a magnetic field transmitter and receiver to resolve phase ambiguity so that phase information for the position and orientation of the receiver may be derived and maintained. A synchronization process allows for the phase information to be initially derived based upon known information from other sources, and then tracked from one measurement to the next. In another embodiment, information from an inertial measurement unit (IMU) is used to determine the phase information or to correct for errors in the determination from receiver data of the position and orientation of a receiver, and prevent such errors from accumulating as the receiver moves away from a transmitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.