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Method and apparatus for providing passive force feedback to human-computer interface systems

  • US 5,767,839 A
  • Filed: 03/03/1995
  • Issued: 06/16/1998
  • Est. Priority Date: 01/18/1995
  • Status: Expired due to Term
First Claim
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1. An apparatus for interfacing the motion of an object with an electrical system comprising:

  • a sensor for detecting movement of said object along a degree of freedom, said sensor having a sensing resolution and being operative to develop an electrical sensor signal for an electrical system; and

    an actuator assembly coupled to said object, said actuator assembly including;

    an actuator for transmiting a force to said object along said degree of freedom, said actuator being responsive to an electrical actuator signal provided by said electrical system; and

    a play mechanism coupled between said actuator and said object for providing an amount of play between said actuator and said object along said degree of freedom, wherein said amount of play is equal to or greater than said sensing resolution,such that said actuator and said sensor provide an electromechanical interface between said object and said electrical system.

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