Sensor controller and stylus
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United States of America Patent
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Aug 1, 2023
Grant Date -
N/A
app pub date -
Nov 30, 2021
filing date -
Jun 29, 2015
priority date (Note) -
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Abstract
An active stylus is provided, which can reduce battery power consumption and reduce the time required for its signal transmission. A position detection device includes a tablet and the stylus having a built-in power source, which are capable of bi-directional transmission and reception of signals through capacitive coupling therebetween. The tablet is configured to transmit a trigger signal US_trg and then transmit a command signal US_cmd to the stylus. The trigger signal US_trg causes the stylus to start its command information receiver to receive the command signal US_cmd including information for controlling the stylus.
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