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Touch sensitive control panel

  • US 5,012,124 A
  • Filed: 07/24/1989
  • Issued: 04/30/1991
  • Est. Priority Date: 07/24/1989
  • Status: Expired due to Term
First Claim
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1. A touch sensitive control apparatus comprising, in combination:

  • an oscillator producing an oscillation output signal;

    a plurality of touch-responsive sensors coupled in circuit with said oscillator and producing respective analog signals associated with touch-dependent modifications of the oscillation output signal produced by said oscillator;

    an analog-to-digital converter which converts analog signals produced by said sensors into respective digital signals representative thereof; and

    a digital computer which processes said respective digital signals and generates an output associated with a selected one of said sensors on the basis of a prescribed relationship among the analog signals produced by plural ones of said sensors.

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