Patent ID: 11907482
Assignee: WACOM CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A pen detection system that detects a pen signal transmitted from a pen to detect a position of the pen, the pen detection system comprising:
a sensor pattern in which an electrode group including first and second partial electrode groups is disposed;
a first integrated circuit that is connected to the first partial electrode group to acquire a level distribution of the pen signal in the first partial electrode group; and
a second integrated circuit that is connected to the second partial electrode group to acquire a level distribution of the pen signal in the second partial electrode group,
wherein,
a predetermined number of at least 4 boundary electrodes positioned near a boundary between the first partial electrode group and the second partial electrode group among a plurality of electrodes included in the electrode group are connected to both of the first and second integrated circuits, and
one of the first or second integrated circuits sets a terminal connected to the boundary electrode to high impedance when the other of the first or second integrated circuits detects a level of the pen signal in the boundary electrode.