Patent · US Active

Device for generating a magnetic field in a goal area for taking a goal decision

US7915887B2 · kind B2 · utility

30Cited by
1References
25Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 22, 2008
Grant dateMar 29, 2011
Priority date
Expiry dateNov 20, 2029

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA63B2220/89
  • WIPO fieldFurniture, games
  • WIPO sectorOther fields

Abstract

A device for generating a magnetic field in a goal area with at least two coils arranged in parallel to a goal area defined and bounded by a goal, wherein a first coil is attached in an area behind the goal and a second coil is attached closer to the goal than the first coil or identical to the goal, wherein the first coil and the second coil respectively have a coil impedance, wherein the coil impedance of the second coil is set so that a magnetic field of the second coil generated due to a magnetic field of the first coil reduces the magnetic field of the first coil at a location within the second coil by at least 20%.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.