公开(公告)号：US20190197999A1

公开(公告)日：2019-06-27

申请号：US16230049

申请日：2018-12-21

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Masahiko KODAMA ,  Takashi SODA ,  Hiroyuki TANABE

IPC: G10H1/00 ,  G10H1/34

Abstract: An operation state detecting apparatus includes the following. An electronic device includes an operation surface and can detect whether there is contact in a plurality of positions. A sheet material can be attached to and detached from the operation surface. The sheet material includes a projecting portion which deforms to change a contact state on the operation surface according to strength of external force. A processor of the electronic device detects whether there is contact in a plurality of positions in an individual detecting region on the operation surface on which a contact state changes by the projecting portion deforming in a state with the sheet material attached to the operation surface. The processor performs a specific process according to strength or speed of an operation applied to the projecting portion judged based on a detected result of whether contact is detected in the plurality of positions.