ELECTRONIC DEVICE AND CONTROL METHOD THEREOF
First Claim
1. An electronic device, comprising:
- a sensing unit for sensing whether receiving a touch from an object;
a charge-and-discharge circuit coupled to the sensing unit, wherein the charge-and-discharge circuit and the sensing unit are charged and discharged periodically according to a plurality of periodic pulses and output a sensing voltage; and
a processing circuit coupled to the sensing unit and the charge-and-discharge circuit, comprising;
a control unit for providing the periodic pulses to the sensing unit and the charge-and-discharge circuit;
a detecting unit for detecting the sensing voltage and deciding a charging time according to the sensing voltage, wherein the charging time is a time at which the sensing voltage reaches a predetermined voltage;
a determining unit coupled to the detecting unit for deciding whether to trigger an interrupt request according to the charging time; and
an executing unit coupled to the determining unit for executing a specific application when the interrupt request is received.
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Accused Products
Abstract
An electronic device includes a sensing unit, a charge-and-discharge circuit, and a processing circuit. The processing circuit includes a control unit, a detecting unit, a determining unit, and an executing unit. The control unit provides a plurality of periodic pulses to the sensing unit and the charge-and-discharge circuit, such that they are charged and discharged periodically and output a sensing voltage. The sensing unit detects the sensing voltage, and determines a charging time according to the sensing voltage, wherein the charging time is a time at which the sensing voltage reaches a predetermined voltage. The determining unit determines whether to trigger an interrupt request according to the charging time. The executing unit performs a designated application when the interrupt request is received.
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Citations
13 Claims
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1. An electronic device, comprising:
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a sensing unit for sensing whether receiving a touch from an object; a charge-and-discharge circuit coupled to the sensing unit, wherein the charge-and-discharge circuit and the sensing unit are charged and discharged periodically according to a plurality of periodic pulses and output a sensing voltage; and a processing circuit coupled to the sensing unit and the charge-and-discharge circuit, comprising; a control unit for providing the periodic pulses to the sensing unit and the charge-and-discharge circuit; a detecting unit for detecting the sensing voltage and deciding a charging time according to the sensing voltage, wherein the charging time is a time at which the sensing voltage reaches a predetermined voltage; a determining unit coupled to the detecting unit for deciding whether to trigger an interrupt request according to the charging time; and an executing unit coupled to the determining unit for executing a specific application when the interrupt request is received. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for controlling an electronic device comprising a sensing unit for sensing whether receiving a touch from an object, and a charge-and-discharge circuit the method comprising:
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providing a plurality of periodic pulses to the sensing unit and the charge-and-discharge circuit; periodically charging and discharging the charge-and-discharge circuit and the sensing circuit according to the periodic pulses, so as to output a sensing voltage; detecting the sensing voltage and determining a charging time according to the sensing voltage, wherein the charging time is a time at which the sensing voltage reaches a predetermined voltage; deciding whether to trigger an interrupt request according to the charging time; and executing a specific application when the interrupt request is received. - View Dependent Claims (12, 13)
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Specification