Patent ID: 11909389
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 3:
4. The input device of claim 2, further comprising:
a third fixed electrode having an upper surface facing the lower surface of the movable electrode, the third fixed electrode being capacitively coupled to the movable electrode; and
a third terminal configured to be connected to the outside of the input device and to output, to the outside of the input device, an electric signal containing a change in a capacitance between the third fixed electrode and the movable electrode, wherein
an area of a region of the upper surface of the first fixed electrode facing the lower surface of the movable electrode is substantially identical to a sum of an area of a region of the upper surface of the second fixed electrode facing the lower surface of the movable electrode and an area of a region of the upper surface of the third fixed electrode facing the lower surface of the movable electrode.