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Motor drive feedback control for a child motion device

  • US 7,918,742 B2
  • Filed: 10/31/2007
  • Issued: 04/05/2011
  • Est. Priority Date: 10/31/2006
  • Status: Active Grant
First Claim
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1. A child motion device comprising:

  • a frame assembly configured to rest on a floor surface;

    a child supporting device supported above the floor surface by the frame assembly;

    a motor supported by the frame assembly;

    a drive system coupled to the motor to produce movement of the child supporting device along a motion path comprising reciprocating strokes;

    one or more sensors responsive to the movement to generate feedback information indicative of direction of the movement and indicative of position along the motion path; and

    ,a motor control circuit coupled to the sensor to determine a time interval, based on the feedback information, in which to apply power to the motor during each reciprocating stroke.

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