Patent ID: 11954284
Assignee: WACOM CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A position detection circuit that uses a touch sensor of a capacitance type including a plurality of sensor electrodes to detect a position indicated by a first indicator that communicates with the touch sensor to indicate the position indicated by the first indicator and a position indicated by a second indicator that indicates the position indicated by the second indicator without communicating with the touch sensor, the position detection circuit comprising:
a first detection circuit that, in operation, detects a touch of the second indicator to an input surface arranged on the touch sensor;
a second detection circuit that, in operation, detects the first indicator when proximity information indicating a proximity of the first indicator to the touch sensor is equal to or greater than a threshold; and
a changing circuit that, in operation, changes the threshold to a larger value in a case where the first detection circuit detects the touch, wherein the larger value is larger than a value of the threshold in a case where the first detection circuit does not detect the touch.