Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2006-09-26
2006-09-26
Shalwala, Bipin (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C178S018050
Reexamination Certificate
active
07113179
ABSTRACT:
A force sensing resistor includes two substrates. Conductive traces including first, common, and calibration fingers are on the first substrate and define a contact area. A spacer surrounds the contact area and attaches the substrates together such that a cavity separates the substrates in the contact area. A first resistive layer is on the second substrate and arranged within the cavity. In response to a force moving one substrate, the first resistive layer electrically connects the first and common fingers with a resistance dependent upon resistivity of the first resistive layer and the applied force to produce an electrical signal indicative of the applied force. A second resistive layer is arranged within the cavity and electrically connects the calibration and common fingers with a resistance dependent upon resistivity of the second resistive layer to produce an electrical signal indicative of the resistivity of the second resistive layer.
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Baker Jeffrey R.
Sanchez Carlos S.
Brooks & Kushman P.C.
Interlink Electronics, Inc.
Piziali Jeff
Shalwala Bipin
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