A - Human Necessities – 63 – F
Patent
A - Human Necessities
63
F
A63F 7/02 (2006.01) G01N 27/72 (2006.01) G07F 17/34 (2006.01) A63F 3/02 (2006.01)
Patent
CA 2069909
The present invention consists of an apparatus comprising signal sending lines (22), each of which has a folded-back shape and serves to send a current for generating a magnetic field, and signal receiving lines (26), each of which has a folded-back shape, and which are arranged at a position permitting them to be electromagnetically coupled with the signal sending lines (22) thus serving to detect a magnetic flux change caused by the approach of metal. The plurality of signal sending lines (22) are arranged coplanarly, while the plurality of signal receiving lines (26) are arranged coplanarly. The signal sending lines (22) and the signal receiving lines (26) are arranged with their planes held in parallel and in directions intersecting to each other, thereby constructing a sensing matrix (20). This sensing matrix (20) is arranged in opposition to a panel along which a metal body to be detected moves, while holding there-between a space which is, at least, large enough to pass the metal body. The signal sending means (50) and signal receiving means (40) are connected to the sensing matrix (20) so as to detect the location of the metal body.
Handa Shigeru
Kawashima Kazunari
Takemoto Takatoshi
Kabushiki Kaisha Ace Denken
Shapiro Cohen
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