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Piezoresistive input device

  • US 5,510,812 A
  • Filed: 04/22/1994
  • Issued: 04/23/1996
  • Est. Priority Date: 04/22/1994
  • Status: Expired due to Fees
First Claim
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1. A device for sensing control input by a user comprising:

  • a base;

    an actuation means for accepting said control input from said user in the form of a force applied by said user, said actuation means pivoting by single point contact on said base;

    at least four piezoresistive elements disposed between said base and said actuation means, said at least four piezoresistive elements sensing said force applied by said user to said actuation means; and

    a biasing means between said piezoresistive elements and said actuation means for biasing said actuation means to a neutral position when no force is applied by said user.

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