Abstract

Embodiments relate to a concept for determining a transit of a movable object through a detection area within a detection plane. At least one exciter antenna provides an exciting electromagnetic field. The exciting electromagnetic field or at least one spatial component thereof has a field strength above a field strength threshold in the detection area. The exciting electromagnetic field is capable of exciting the movable object to emit an electromagnetic response signal comprising information on a position of the movable object. At least one sensor antenna comprising a magnetic core receives the electromagnetic response signal. The at least one magnetic core is positioned in a region of the exciting electromagnetic field where the field strength of the exciting electromagnetic field or the at least one spatial component thereof is below the field strength threshold.

IPC Classes  ?

• A63B 24/00 - Electric or electronic controls for exercising apparatus of groups
• A63B 71/00 - Games or sports accessories not covered in groups
• A63B 43/00 - Balls with special arrangements
• G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
• G08B 13/14 - Mechanical actuation by lifting or attempted removal of hand-portable articles
• G01B 7/14 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
• H01Q 7/08 - Ferrite rod or like elongated core
• H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
• H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
• H01Q 7/06 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
• H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
• A63B 63/00 - Targets or goals for ball games
• A63B 71/06 - Indicating or scoring devices for games or players
• A63B 102/24 - Ice hockey
• A63B 102/20 - Cricket
• A63B 102/34 - Polo
• A63B 102/22 - Hockey