Orientation tracking system and method
US8953154B2 · kind B2 · utility
12Cited by
13References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2012 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Jun 14, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0219
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An orientation tracking system including a first tracking system subject to drift. A second tracking system is configured to provide an output for calibrating the first tracking system to reduce the drift of the first tracking system. The second tracking system includes at least one inclinometer, each inclinometer including a light source adjacent one side of the inclinometer, a light sensor adjacent an opposing side of the inclinometer, and a light obscuring material within the inclinometer for obscuring the light between the light source and light sensor to indicate an orientation of the inclinometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.