Patent · US Active

Calibration of tracking device

US8340908B2 · kind B2 · utility

4Cited by
9References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 10, 2008
Grant dateDec 25, 2012
Priority date
Expiry dateSep 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.