发明授权
US4274638A Game switch matrix 失效
游戏开关矩阵

  • 专利标题: Game switch matrix
  • 专利标题(中): 游戏开关矩阵
  • 申请号: US952736
    申请日: 1978-10-19
  • 公开(公告)号: US4274638A
    公开(公告)日: 1981-06-23
  • 发明人: Graham A. Jullien
  • 申请人: Graham A. Jullien
  • 申请人地址: CAX Windsor
  • 专利权人: Oqilvy; James J.
  • 当前专利权人: Oqilvy; James J.
  • 当前专利权人地址: CAX Windsor
  • 优先权: CAX290796 19771114
  • 主分类号: A63F3/00
  • IPC分类号: A63F3/00 A63F3/08
Game switch matrix
摘要:
A game switch particularly useful as a bingo table used by a bingo caller has greatly increased reliability over conventional microswitch actuated tables. A matrix of conductive flexible strips are used, whereby when a ball is depressed at an intersection of a vertical and horizontal strip, a contact is made. The resistance of the contact is particularly suitable for use with CMOS gate inputs to an electronic matrix position determining circuit.
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