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Joystick control circuit

  • US 4,656,456 A
  • Filed: 09/11/1985
  • Issued: 04/07/1987
  • Est. Priority Date: 09/11/1985
  • Status: Expired due to Term
First Claim
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1. A control circuit comprising:

  • first and second dual input logic gates;

    a first potentiometer having first and second end terminals and a wiper, the wiper being connected to one input of each of the first and second logic gates, the first end terminal being connected to the output of said first logic gate, the second end terminal being connected to the output of said second logic gate;

    a capacitor coupling the wiper of said first potentiometer to a first electrical potential; and

    means operatively coupled to said wiper for selectively applying a second electrical potential to the other terminal of one of the first and second logic gates upon the wiper of the first potentiometer moving from a neutral position toward the first or second end terminals respectively;

    whereby signals are produced at the outputs of said logic gates with the frequency of said signals varying in a continuous manner in correspondence with the movement of said wiper away from said neutral position.

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