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US 2025/0165112 A1Published application
Position detection device, and position detection method based on electromagnetic inductive coupling and capacitive coupling
AssigneeWacom Co., Ltd.
InventorsYuji Katsurahira, Hideyuki Hara
Life of this patent
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Abstract
A position detection device includes a plurality of first electrodes extending in a first direction and detection circuitry. The detection circuitry includes a first common terminal, to which first terminals of the plurality of first electrodes are couplable, and a second common terminal, to which second terminals of the plurality of first electrodes are couplable, in a state of electromagnetic inductive coupling with a pointer to detect a position indicated by the pointer.
Claims20
A position detection device, comprising:
- a plurality of first electrodes extending in a first direction;
- and
- detection circuitry including a first common terminal, to which first terminals of the plurality of first electrodes are couplable, and a second common terminal, to which second terminals of the plurality of first electrodes are couplable, in a state of electromagnetic inductive coupling with a pointer.
A control device of a position detection device, wherein
- the position detection device includes a plurality of first electrodes extending in a first direction and includes detection circuitry which, using the plurality of first electrodes, detects a position indicated by a pointer based on electromagnetic inductive coupling with the pointer, and
- the control device is configured to couple first terminals of the plurality of first electrodes to a first common terminal of the detection circuitry and couple second terminals of the plurality of first electrodes to a second common terminal of the detection circuitry.
Dependencies are inferred from the claim text.