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Device for pointing the cursor on the screen of interactive systems

  • US 5,563,629 A
  • Filed: 09/19/1994
  • Issued: 10/08/1996
  • Est. Priority Date: 09/24/1993
  • Status: Expired due to Term
First Claim
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1. Device for pointing the cursor on the screen of interactive systems, comprising a manual actuation element which is formed by a hollow cylinder, by a button which is supported so that it can rock in said hollow cylinder, by elastic reaction means for keeping said button rested against a fixed abutment;

  • said button, when pressed against said elastic reaction means in any point that is eccentric with respect to the origin of a system of orthogonal axes X and Y placed at the center of said button, being suitable to be tilted in the direction of the point where pressure is applied;

    sensor means, operatively associated with said element, for providing signals that correspond to the components in the directions X and Y of the tilt that is a consequence of said pressure;

    a logic controller suitable to perform a cyclic analysis of said signals and to calculate, for each cycle, an incremental movement to be applied to the cursor in the direction corresponding to the direction of the tilt and at a speed that increases as the modulus of said tilt increases;

    a logic unit for accumulating the calculated movements and for transmitting the corresponding information to a system in a manner that is compatible with a normal mouse.

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