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US 10,761,650 B2Granted
Touch sensing device for determining information related to pen, control method therefor, and pen
AssigneeSamsung Electronics Co., Ltd.
InventorsSung-Soo Park, Byung-Hoon Kang, Chang-Byung Park, Kang-Nam Kim
Life of this patent
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Abstract
A touch sensing device determines a contact location of a pen by using a first electrode signal generated from a first electrode of the pen, determines additional information related to the pen by using a second electrode signal generated from a second electrode of the pen, and can determine tilt information of the pen and/or rotation information of the pen by using a profile of the first electrode signal and a profile of the second electrode signal.
Claims12
A touch sensing device comprising:
- a plurality of first axis electrodes arranged in a first direction;
- a plurality of second axis electrodes arranged in a second direction that intersects the plurality of first axis electrodes;
- and
- a controller,
- wherein the controller is configured to:
- upon receiving a first electrode signal having a first frequency generated from a first electrode of a pen through the plurality of first axis electrodes and the plurality of second axis electrodes, determine a contact position of the pen by using the first electrode signal,
- upon receiving a second electrode signal having a second frequency generated from a second electrode of the pen through the plurality of first axis electrodes and the plurality of second axis electrodes, determine additional information related to the pen by using the second electrode signal, wherein the second frequency is different from the first frequency, and
- determine at least one of tilt information of the pen or rotation information of the pen by using a profile of the first electrode signal and a profile of the second electrode signal,
- wherein an electrode signal is not generated from the second electrode of the pen while the first electrode signal is generated from the first electrode of the pen, based on a contact pressure between a tip of the pen and the touch sensing device being less than a threshold value, and
- wherein the second electrode signal is generated from the second electrode of the pen while the first electrode signal is generated from the first electrode of the pen, based on the contact pressure being greater than or equal to the threshold value.
7 more elements
A pen comprising:
- a first electrode;
- a second electrode arranged physically apart from the first electrode;
- and
- a controller,
- wherein the controller is configured to:
- control the first electrode to generate a first electrode signal having a first frequency while controlling the second electrode not to generate an electrode signal, based on a contact pressure between a tip of the pen and a touch sensing device being less than a threshold value, and
- control the second electrode to generate a second electrode signal having a second frequency that is different from the first frequency while controlling the first electrode to generate the first electrode signal, based on the contact pressure being greater than or equal to the threshold value.
4 more elements
Dependencies are inferred from the claim text.