Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2005-11-01
2005-11-01
Mengistu, Amare (Department: 2673)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C178S018060
Reexamination Certificate
active
06961049
ABSTRACT:
A capacitive touch sensor with symmetrical electrical interconnections for use with a touch sensor of a device is disclosed. The touch sensor includes several sensor bars, with a unique pair of lead lines coupled to each sensor bar. No inter-connection is provided between individual sensor bars. The sensor bars may be substantially transparent, and may comprise indium tin oxide. The touch sensor may be disposed on a viewing screen or proximate thereto. Also disclosed is a system for providing a signal for use in determining a touch location. The touch sensor receives an electrical field, receives a touch, and provides a signal representative of the modulation of the electrical field caused by the touch, wherein the modulation is a function of the location of the touch and the signal is suitable for use by controller to determine the location of the touch.
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Badaye Massoud
Lim Brian G.
Mulligan Roger C.
Wong Alex K.
3M Innovative Properties Company
Mengistu Amare
Pechman Robert J.
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