Method and apparatus for controlling a movable object for localization within a positioning area
US7795861B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2007 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Aug 18, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2225/52
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
At least two coils located at different positions with regard to a positioning area are controlled to indicate a position of an object located within the range of magnetic fields generated by the coils. An embodiment of the invention comprises a generator that uses a multiplexing technique to generate coil enable signals for the at least two coils. The coil enable signals are generated for the at least two coils with any of different polarities and different intensities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.