System and method for bidirectional communication between stylus and stylus sensor controller
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United States of America Patent
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Mar 20, 2018
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app pub date -
Apr 20, 2016
filing date -
Apr 20, 2015
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Abstract
A method is provided for communication between a sensor controller and a host processor, wherein the sensor controller is coupled to a sensor configured to interact with an active stylus. The sensor controller supportive of a default descriptor of a defined set of stylus attributes transmits the default descriptor to the host processor. The sensor controller, when coupled with a first stylus capable of reporting on a first subset of the defined set of stylus attributes, transmits to the host processor a first stylus report that has fields of the first subset of stylus attributes filled with values reported from the first stylus. The sensor controller, when coupled with a second stylus capable of reporting on a second subset of the defined set of stylus attributes, transmits to the host processor a second stylus report that has fields of the second subset of stylus attributes filled with values reported from the second stylus.
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