Calibration of tracking device
US8340908B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2008 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Sep 28, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2300/65
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A tracking device may be used to detect a position or movement of an object. The tracking device may include a housing that supports an emitter. The emitter may transmit a first signal. A measurement device within the housing may measure rotational movement of an object. Circuitry may receive a second signal in response to the first signal. The circuitry may reset an angle value to a predetermined value based on the second signal. The angle value may be determined by a measurement of the rotational movement of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.