Digital joystick using capacitive sensor
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United States of America Patent
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-
Nov 12, 2002
Grant Date -
N/A
app pub date -
Jul 23, 1999
filing date -
Jul 23, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A joystick that detects position and movement using a capacitive sensor. The joystick has a stick mounted to allow movement within a housing, a conductive element at a first end of the stick, and a capacitive sensor. The capacitive sensor may be a capacitive touchpad. It determines position by measuring the change in capacitance on a set of conductive traces. The capacitive sensor may be shaped as a plane or may be hemispherically-shaped. The conductive element may also be triangular or other distinctive shape to allow detection of movement. An advantage of such a joystick is that absolute positioning may be determined, along with relative positioning.
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