Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2007-05-15
2007-05-15
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C178S019070
Reexamination Certificate
active
10162241
ABSTRACT:
A coordinate input device includes a coordinate input element. The coordinate input element includes a transparent coordinate detector and a controller having a control circuit which drives and controls the coordinate detector and which corrects electrostatic capacitance noise disturbing the coordinate detector. The coordinate input device also includes a liquid crystal display device provided on the back side of the coordinate input element, a casing for holding the coordinate input element and the liquid crystal display device, and an L-shaped and a reverse L-shaped push button switches provided on the upper surface of the casing.
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Alps Electric Co. ,Ltd.
Brinks Hofer Gilson & Lione
Hjerpe Richard
Nguyen Kevin M.
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