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Manually-operated control device

  • US 5,065,146 A
  • Filed: 11/19/1990
  • Issued: 11/12/1991
  • Est. Priority Date: 06/18/1987
  • Status: Expired due to Fees
First Claim
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1. A manually-operated control device for controlling the position of a cursor on a display screen comprising:

  • a source of light;

    a plurality of detectors responsive to light from the light source;

    a handle including transmission means for transmitting said light through the handle, the handle having a neutral position and a plurality of operative positions, wherein the handle is manually-movable from the neutral position to the operative positions to transmit a portion of the light from the source through the transmission means to one of the detectors, whereby the position of the handle may be measured by interrogation of the detectors; and

    each detector has associated therewith a further detector, such that, when the handle is moved along an axis from the neutral position to an operative position, further motion of the handle along the same axis causes light to be transmitted to the associated further detector.

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