Patent ID: 11946294
Assignee: ALPS ALPINE CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC E  H | IPC E  H

Claim 14:
15. A door handle comprising,
a capacitance sensor configured to detect an operation body, wherein the capacitance sensor includes:
a substrate formed of an insulator and having a surface;
at least one first sensor electrode disposed on the surface of the substrate;
a plurality of second sensor electrodes disposed on the surface of the substrate; and
a controller,
wherein a number of the plurality of second sensor electrodes is greater than a number of the at least one first sensor electrode,
wherein the controller applies a voltage to the plurality of second sensor electrodes and detects a coordinate position of the operation body, in a case where a capacitance between the operation body and the at least one first sensor electrode is greater than or equal to a predetermined value, and
wherein, in a case where the capacitance between the operation body and the at least one first sensor electrode is less than the predetermined value, the controller applies the voltage to the plurality of second sensor electrodes, and performs calibration such that capacitance values at the plurality of second sensor electrodes are consistent.