SINGLE-AXIS CAPACITIVE MULTI-TOUCH PANEL, SYSTEM AND METHOD
First Claim
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1. A single-axis capacitive multi-touch panel, comprising:
- a substrate; and
a plurality of conductive lines formed on one side of the substrate, wherein the conductive lines are arranged in a single axis and each said conductive line is operatively coupled to an alternating-current signal, and an output signal according to the alternating-current signal is then measured to determine touch location.
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Abstract
The present invention is directed to a single-axis capacitive multi-touch panel, system and method. A multi-touch panel includes a substrate and some conductive lines formed on one side of the substrate, wherein the conductive lines are arranged in a single axis. A driving circuit, for producing an alternating-current signal, is operatively coupled to the conductive lines of the multi-touch panel, and measuring circuit, for receiving an output signal according to the alternating-current signal to determine touch location, i s operatively coupled to the conductive lines of the multi -touch panel.
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Citations
31 Claims
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1. A single-axis capacitive multi-touch panel, comprising:
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a substrate; and a plurality of conductive lines formed on one side of the substrate, wherein the conductive lines are arranged in a single axis and each said conductive line is operatively coupled to an alternating-current signal, and an output signal according to the alternating-current signal is then measured to determine touch location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 14)
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11. A single-axis capacitive multi-touch system, comprising:
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a multi-touch panel having a substrate and a plurality of conductive lines formed on one side of the substrate, wherein the conductive lines are arranged in a single axis; a driving circuit, for producing an alternating-current signal, operatively coupled to the conductive lines of the multi-touch panel; and a measuring circuit, for receiving an output signal according to the alternating-current signal to determine touch location, operatively coupled to the conductive lines of the multi-touch panel. - View Dependent Claims (12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A single-axis capacitive multi-touch method, comprising:
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providing an alternating-current signal; driving a plurality of conductive lines in turn by the alternating-current signal to generate an electromagnetic field; receiving an output signal from the conductive lines; and determining characteristics of a transfer function of the conductive line based on the alternating-current signal and the output signal, thereby determining touching points on the conductive line. - View Dependent Claims (27, 28, 29, 30, 31)
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Specification