Automatically synchronizing a transmitter and receiver in a magnetic tracking system using information from an inertial measurement unit
US12184353B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Apr 25, 2022 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | Apr 12, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/309
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Automatic synchronization of a magnetic field transmitter and receiver is performed to resolve phase ambiguity so that phase information, used in determining the position and orientation of the receiver, may be derived and maintained. Inertial measurement unit (IMU) information is used to infer gravity-relative orientations of the transmitter and receiver, which are then used as constraints in the synchronization process to determine the position and orientation of the receiver from all four possible solutions or variations. The variation that best conforms to the IMU orientations is chosen as the sync candidate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.