Patent · US Active

Method and apparatus for controlling a movable object for localization within a positioning area

US7795861B2 · kind B2 · utility

42Cited by
4References
32Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 30, 2007
Grant dateSep 14, 2010
Priority date
Expiry dateAug 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.