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Sliding contact control switch pad

  • US 5,367,199 A
  • Filed: 09/15/1992
  • Issued: 11/22/1994
  • Est. Priority Date: 05/01/1992
  • Status: Expired due to Fees
First Claim
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1. A sliding contact touch activated switch pad, comprising:

  • a plurality of sensors disposed about an intersection of at least two intersecting axes, each sensor of said plurality of sensors being a capacitive sensor and being separated from an adjacent sensor of said plurality of sensors by a non-conductive area;

    a null zone disposed concentric with said plurality of sensors and located between said intersection and said plurality of sensors; and

    means electrically connected to each sensor for producing (a) a final first-output signal when a controlling object is in conductive engagement with a sensor or a pair of adjacent sensors, and (b) a final second-output signal when said controlling object is not in conductive engagement with a sensor or pair of sensors.

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