Patent ID: 11972084
Assignee: SHARP DISPLAY TECHNOLOGY CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A touch panel system comprising:
a touch panel including a drive electrode, a position detection electrode, and a plurality of pressing force detection electrodes;
a cover member overlapping the touch panel; and
a control circuit configured to
provide a drive signal to the drive electrode,
acquire a first signal value from the position detection electrode,
acquire a plurality of second signal values from the plurality of pressing force detection electrodes,
detect a position of a pointer based on the first signal value,
perform amplification processing on at least one of the plurality of second signal values in a pressing force detection range, the pressing force detection range corresponding to the detected position of the pointer, and
calculate magnitude of a pressing force generated by the pointer based on the at least one of the plurality of second signal values after the amplification processing is performed.