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Image position control

  • US 4,799,049 A
  • Filed: 01/25/1985
  • Issued: 01/17/1989
  • Est. Priority Date: 01/25/1985
  • Status: Expired due to Fees
First Claim
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1. A control that uses both rotational movement and sliding movement to position an image on a screen for use with means for detecting the movement where the means for detecting senses the movement and a microprocessor that interprets the movement detected to position said image on said screen and means for displaying said image on said screen, comprising:

  • a body having a concave surface defining a notch; and

    a cylindrical bar having a bar axis, said bar being matingly situated in the notch of the body for rotatable and slidable movement relative to the body, said bar being rotatable coupled to the body for movement about the bar axis and slidably coupled to the body for movement in a direction parallel to the bar axis, rotating movement of said bar causing said image to move in a first direction on said screen and sliding movement of said bar causing said image to move in a second direction on said screen.

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