Method using active stylus and sensor controller, sensor controller, active stylus, and system
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United States of America Patent
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Dec 8, 2020
Grant Date -
Jan 18, 2018
app pub date -
Sep 26, 2017
filing date -
Apr 20, 2015
priority date (Note) -
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Abstract
A method is provided for using an active stylus and a sensor controller that engage in two-way communication with each other. The sensor controller sends a beacon signal BS indicating reference time of a frame F. After detecting the beacon signal BS, the active stylus sends, included in a response signal to the beacon signal BS, a hash value CP_Hash associated with capability information indicating the type of one or more pieces of interactive data DF that can be obtained by the active stylus. The active stylus periodically sends data signals DF1,DF2, and so on, which include at least part of the one or more pieces of interactive data DF and which are configured in a format determined based on the one or more pieces of interactive data DF.
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