PIN SHARING CIRCUIT, PIN SHARING METHOD, ELECTRONIC DEVICE AND ELECTRONIC WIRE USING THE SAME
First Claim
1. A pin sharing circuit for use between a keyboard device and a touch panel, said pin sharing circuit comprising:
- an integrated circuit comprising at least one first shared pin, wherein said first shared pin is configured to output a stimulation signal containing an alternating current (AC) component and a direct current (DC) component; and
a first wire configured to enable said at least one first shared pin on said integrated circuit to be coupled to an input terminal of said keyboard device and an input terminal of said touch panel, wherein said first wire comprises a first impedance element coupled between said input terminal of said keyboard device and said at least one first shared pin and configured to filter said stimulation signal so as to filter out said AC component of said stimulation signal.
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Accused Products
Abstract
Provided herein are a pin sharing circuit, a pin sharing method and an electronic device, an electronic wire using the same. The pin sharing circuit enables at least one pin on an integrated circuit to be shared by a keyboard device and a touch panel and prevents signal interference between the keyboard device and the touch panel using an impedance element disposed on a wire for the pin, such that the pin can output or receive a stimulation signal and a sensor signal that contain both an AC component and a DC component so as to enhance the efficiency of the overall system and prevent the stimulation signal and the sensor signal from conflicts between the keyboard device and the touch panel.
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Citations
18 Claims
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1. A pin sharing circuit for use between a keyboard device and a touch panel, said pin sharing circuit comprising:
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an integrated circuit comprising at least one first shared pin, wherein said first shared pin is configured to output a stimulation signal containing an alternating current (AC) component and a direct current (DC) component; and a first wire configured to enable said at least one first shared pin on said integrated circuit to be coupled to an input terminal of said keyboard device and an input terminal of said touch panel, wherein said first wire comprises a first impedance element coupled between said input terminal of said keyboard device and said at least one first shared pin and configured to filter said stimulation signal so as to filter out said AC component of said stimulation signal. - View Dependent Claims (2, 3, 4)
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5. A pin sharing method for use between a keyboard device and a touch panel, said pin sharing method comprising:
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outputting a stimulation signal containing an AC component and a DC component from at least one first shared pin on an integrated circuit; using a first wire to enable said at least one first shared pin on said integrated circuit to be coupled to an input terminal of said keyboard device and an input terminal of said touch panel, wherein said first wire comprises a first impedance element coupled between said input terminal of said keyboard device and said at least one first shared pin; and using said first impedance element to filter said stimulation signal so as to filter out said AC component of said stimulation signal. - View Dependent Claims (6, 7, 8)
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9. An electronic device, comprising:
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a keyboard device; a touch panel; and a pin sharing circuit, comprising; an integrated circuit comprising at least one first shared pin, wherein said first shared pin is configured to output a stimulation signal containing an alternating current (AC) component and a direct current (DC) component; and a first wire configured to enable said at least one first shared pin on said integrated circuit to be coupled to an input terminal of said keyboard device and an input terminal of said touch panel, wherein said first wire comprises a first impedance element coupled between said input terminal of said keyboard device and said at least one first shared pin and configured to filter said stimulation signal so as to filter out said AC component of said stimulation signal. - View Dependent Claims (10, 11, 12)
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13. An electronic wire applicable to an integrated circuit sharing at least one output pin, said electronic wire comprising:
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a first connecting terminal coupled to said at least one output pin and configured to receive a stimulation signal containing an alternating current (AC) component and a direct current (DC) component provided by said at least one output pin; a second connecting terminal coupled to an input terminal of a first electronic device and configured to provide said first electronic device with said stimulation signal containing said DC component; a third connecting terminal coupled to an input terminal of a second electronic device and configured to provide said second electronic device with said stimulation signal containing said AC component; and a Y-shaped connecting structure connected to said first connecting terminal, said second connecting terminal and said third connecting terminal and configured to electrically connect one another, wherein said Y-shaped connecting structure comprises an impedance element coupled between said second connecting terminal and said first connecting terminal and configured to filter said stimulation signal so as to filter out said AC component of said so as to filter out said AC component of said first sensor signal. - View Dependent Claims (14, 15)
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16. An electronic wire applicable to an integrated circuit sharing at least one input pin, said electronic wire comprising:
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a first connecting terminal coupled to said at least one input pin and configured to receive a first sensor signal provided by an output terminal of a first electronic device and a second sensor signal provided by an output terminal of a second electronic device; a second connecting terminal, coupled to said output terminal of said first electronic device; a third connecting terminal coupled to said output terminal of said second electronic device; and a Y-shaped connecting structure connected to said first connecting terminal, said second connecting terminal and said third connecting terminal and configured to electrically connect one another, wherein said Y-shaped connecting structure comprises an impedance element coupled between said second connecting terminal and said first connecting terminal and configured to filter said stimulation signal so as to filter out said AC component of said so as to filter out an AC component of said first sensor signal. - View Dependent Claims (17, 18)
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Specification