Motion tracking system and method
US6831603B2 · kind B2 · utility
115Cited by
58References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2003 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Mar 11, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for tracking objects within a three-dimensional capture zone includes placing at least four sensors around the capture zone. A stationery reference tag is placed within the capture zone. Tags are coupled to objects to be tracked in the capture zone. Signals are periodically transmitted from the reference and object tags. These signals are received and the identification code, and code phase and carrier phase measurements are extracted. The code phrase and carrier phase measurements are processed to determine the position of each object tag with respect to the reference tag at each sampling instant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.