Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Reexamination Certificate
2006-09-05
2006-09-05
Mengistu, Amare (Department: 2675)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
C345S173000
Reexamination Certificate
active
07102628
ABSTRACT:
A computing system includes a handwriting input device and a computing device, the handwriting input device including an electronic pen input device having a first tip that emits a signal having a first characteristic and second tip that emits a signal having second characteristic; a detector for detecting the characteristic of the emitted signal; and a controller, interfaced with the computing device, for selectively interpreting the emitted signal as handwriting or as control information for the computing device based on the detected characteristic of the emitted signal.
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Dumarot Dan Peter
Inoue Ken
Karidis John Peter
Kesavarapu Sreenivasulu
LeKuch Scott
August, Esq. Casey P.
IBM Corporation
Mengistu Amare
Ohlandt Greeley Ruggiero & Perle L.L.P.
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