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

Claim 18:
19. A position detection system, comprising:
a first indicator that, in operation, communicates with a touch sensor of a capacitance type including a plurality of sensor electrodes to indicate a position indicated by the first indicator; and
a position detection circuit that, in operation, uses the touch sensor to detect the position indicated by the first indicator and a position indicated by a second indicator that, in operation, indicates the position indicated by the second indicator without communicating with the touch sensor,
the position detection circuit including:
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.