POSITION DETERMINATION TECHNIQUES IN RESISTIVE TOUCH SCREEN APPLICATIONS

Systems and methods to determine locations for dual touch operations performed on a four-wire resistive touch screen. The systems and methods may include measuring signals from pairs of electrodes on each of a first and second resistive sheet of the resistive touch screen in two phases of operation....

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Bibliographische Detailangaben
Hauptverfasser: MARTINEZ MARIA JOSE, MEDINA ITALO CARLOS, CALPE MARAVILLA JAVIER, CARBAJO GALVE ALBERTO
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Systems and methods to determine locations for dual touch operations performed on a four-wire resistive touch screen. The systems and methods may include measuring signals from pairs of electrodes on each of a first and second resistive sheet of the resistive touch screen in two phases of operation. The systems and methods may further include determining touch screen segment resistances from the signal measurements. The systems and methods may determine locations corresponding to the dual touch operations from the resistances. The systems and methods may also determine locations from the signal measurements.