Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Patent
1994-09-19
1996-10-08
Brier, Jeffery
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
345184, G09G 508
Patent
active
055636292
ABSTRACT:
A device for controlling the positioning of the cursor displayed on the screen of interactive systems includes: a manual actuation element which is similar to a button and reacts, when pressed in any eccentric point of its surface (with respect to which a system of perpendicular coordinated axes X and Y is defined), by rocking, that is to say by tilting in the direction of the point where pressure is applied (to an extent determined by ergonomic criteria together with the other shape and elastic reaction characteristics of the button); sensor means which are operatively associated with the actuation element and are suitable to provide signals corresponding to the components in the directions X and Y of the consequent inclinations; a logic controller for analyzing the signals periodically and for calculating, for each cycle, an incremental movement to be applied to the cursor in the direction corresponding to the direction of the rocking motion and at a speed that increases as the associated modulus 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 an ordinary mouse.
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Brier Jeffery
Josif Albert
Modiano Guido
Sintecna S.r.l.
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