Touch Screen Driver for Resolving Plural Contemporaneous Touches and Methods for Use Therewith
First Claim
1. A touch screen driver for use with a resistive touch screen, the touch screen driver comprising:
- an input/output module, coupled to the resistive touch screen, that supplies at least one input signal to at least one of a plurality of input/output ports of the resistive touch screen and that generates at least one output signal, in response to the at least one input signal, and in accordance with at least one control signal; and
a controller module, coupled to the input/output module, that generates the at least one control signal and that generates a position signal representing a resolved position in accordance with a plurality of contemporaneous touches of the resistive touch screen.
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Accused Products
Abstract
A touch screen driver that can be used with a resistive touch screen includes an input/output module that supplies at least one input signal to at least one of a plurality of input/output ports of the touch screen and that generates at least one output signal, in response to the at least one input signal, and in accordance with at least one control signal. A controller module generates the at least one control signal and that generates a position signal representing a resolved position in accordance with a plurality of contemporaneous touches of the resistive touch screen.
31 Citations
25 Claims
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1. A touch screen driver for use with a resistive touch screen, the touch screen driver comprising:
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an input/output module, coupled to the resistive touch screen, that supplies at least one input signal to at least one of a plurality of input/output ports of the resistive touch screen and that generates at least one output signal, in response to the at least one input signal, and in accordance with at least one control signal; and a controller module, coupled to the input/output module, that generates the at least one control signal and that generates a position signal representing a resolved position in accordance with a plurality of contemporaneous touches of the resistive touch screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A touch screen driver for use with a touch screen, the touch screen driver comprising:
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an input/output module, coupled to the touch screen, that supplies a plurality of input signals to at least one of a plurality of input/output ports of the touch screen and generates a plurality of output signals, in response to the plurality of input signals, and in accordance with at least one control signal; and a controller module, coupled to the input/output module, that generates the at least one control signal and that generates a first position signal representing a position of a first touch of the touch screen and a second position signal representing a second touch of the touch screen, wherein the first touch begins before the beginning of the second touch, wherein the first touch continues during at least a portion of the second touch, and wherein the controller module generates the first position signal based on a first output signal of the plurality of output signals generated before the beginning of the second touch. - View Dependent Claims (12)
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13. A method for use with a resistive touch screen, the method comprising:
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generating at least one input signal to at least one of a plurality of input/output ports of the resistive touch screen; generating at least one output signal, in response to the at least one input signal; and generating a position signal representing a resolved position in accordance with a plurality of contemporaneous touches of the resistive touch screen, based on the at least one output signal. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for use with a touch screen for resolving the position of a first touch of the touch screen and a second touch of the touch screen, wherein the first touch begins before a second touch of the touch screen, wherein the first touch continues during at least a portion of the second touch, the method comprising:
generating a first position signal representing a position of a first touch of the touch screen, before the beginning of the second touch. - View Dependent Claims (24)
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25. A method for use with a touch screen for rejecting a touch of the touch screen that includes a plurality of X panel ports and a plurality of Y panel ports, the method comprising:
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generating a first input signal to drive at least one of the plurality of X panel ports; generating a first output signal from the at least one of the plurality of X panel ports; generating a second input signal to drive at least one of the plurality of Y panel ports; generating a second output signal from the at least one of the plurality of Y panel ports; and comparing the first output signal to a first threshold; rejecting the touch when the first signal compares unfavorably to the first threshold; comparing the second output signal to a second threshold; and rejecting the touch when the second signal compares unfavorably to second first threshold.
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Specification