Coded data generation or conversion – Bodily actuated code generator – Including keyboard or keypad
Patent
1998-01-12
1999-09-07
Horabik, Michael
Coded data generation or conversion
Bodily actuated code generator
Including keyboard or keypad
341 20, 345161, 200 6A, 74471XY, H03M 1100
Patent
active
059493542
ABSTRACT:
The present invention provides a computer pointing device which uses capacitors installed in various directions to generate pointing signals. The pointing device comprises a circuit board, a cap, and a detecting unit. The circuit board comprises a center point, a first conducting plate installed in a first direction and a second conducting plate installed in a second direction. The cap is movably installed above the center point of the circuit board. The bottom side of the cap has a top conducting plate which forms first and second capacitors with the first and second conducting plates separately. The detecting unit is electrically connected to the top, first and second conducting plates to detect the capacitance of the first and second capacitors and generate corresponding pointing signals to reflect the position of the cap in the first and second directions.
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Acer Peripherals Inc.
Horabik Michael
Hsu Winston
Wong Albert K.
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