Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate
2005-12-05
2011-11-22
Awad, Amr (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
C345S161000
Reexamination Certificate
active
08063881
ABSTRACT:
A method and an apparatus for determining displacement of a surface member coupled to a user interface mechanism, for example a joystick handle, using a fixed optical motion sensor. Using the displacement of the surface member, the method, and apparatus may determine an absolute position of the surface member, recalibrating a center point upon detecting a difference in light reflection of the center point.
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Awad Amr
Bukowski Kenneth
Cypress Semiconductor Corporation
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