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Keyboard-mounted cursor position controller

  • US 5,126,723 A
  • Filed: 12/11/1989
  • Issued: 06/30/1992
  • Est. Priority Date: 12/11/1989
  • Status: Expired due to Fees
First Claim
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1. A hand-operable input device for controlling the movement of a marker on a display screen, the device comprising:

  • a tray having right and left ends, elongated along a first axis and mounted for translational movement along said first axis;

    a hand-operable roller, rotatably mounted on said tray and movable therewith;

    rotary encoder means mounted on and movable with said tray and in engagement with said roller, for providing signals indicative of rotary motion of said roller; and

    translational encoder means movable with said tray, for providing signals indicative of translational movement of said tray.

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