Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate
2010-09-13
2011-10-11
Wang, Quan-Zhen (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
C345S173000
Reexamination Certificate
active
08035616
ABSTRACT:
A pointing device some or all of whose elements are made from capacitive sensors. Such elements may include a rotary motion detector which includes a rotating member and a plurality of fixed capacitive detecting members; a rolling ball with patterned conductive surface and a plurality of fixed capacitive detecting members; capacitive touch sensors or capacitive switches to serve as mouse buttons; and a scrolling wheel, knob, or touch surface built from capacitive sensors. The pointing device further includes a capacitance measuring circuit and processor to measure variations of capacitance on the various capacitive elements and to determine the movement of and other activations of the mouse.
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Day Shawn P.
Errington Andrew M.
Gillespie David W.
Shaw Scott J.
Trent, Jr. Raymond A.
Chow Yuk
Ingrassia Fisher & Lorenz P.C.
Synaptics Incorporated
Wang Quan-Zhen
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