×

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

  • US 7,915,887 B2
  • Filed: 02/22/2008
  • Issued: 03/29/2011
  • Est. Priority Date: 02/26/2007
  • Status: Expired due to Fees
First Claim
Patent Images

1. A device for generating a magnetic field in a goal area, comprising 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 attached identically to the goal, wherein the first coil and the second coil respectively comprise 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%.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×