Pin sharing circuit, pin sharing method, electronic device and electronic wire using the same
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United States of America Patent
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Apr 16, 2019
Grant Date -
Mar 15, 2018
app pub date -
Jul 17, 2017
filing date -
Sep 9, 2016
priority date (Note) -
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status (Latency Note)
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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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