公开(公告)号：US20240019971A1

公开(公告)日：2024-01-18

申请号：US18359656

申请日：2023-07-26

Applicant: Alps Alpine Co., Ltd.

Inventor： Toru TAKAHASHI ,  Masayoshi TAKEUCHI ,  Tetsuya SUZUKI ,  Yusuke UMETSU ,  Hiroki MAJIMA

IPC: G06F3/044

CPC classification number: G06F3/0446 ,  G06F3/0448 ,  G06F2203/04112 ,  G06F2203/04111

Abstract: An electrode member includes a first electrode pattern and a second electrode pattern. In each of the first electrode pattern and the second electrode pattern, first end portion wires of the first thin metal wires form a pair across the insulation gap, and first end surfaces of the paired first end portion wires are located so as to include portions that face each other with a predetermined distance therebetween in a direction that intersects a first direction. In each of the first electrode pattern and the second electrode pattern, second end portion wires of the second thin metal wires form a pair across the insulation gap, and second end surfaces of the paired second end portion wires are located so as to include portions that face each other with a predetermined distance therebetween in a direction that intersects a second direction.

公开(公告)号：US20240011801A1

公开(公告)日：2024-01-11

申请号：US18472567

申请日：2023-09-22

Applicant: ALPS ALPINE CO., LTD.

Inventor： Tatsumi FUJIYOSHI ,  Tetsuya SUZUKI ,  Shinichi HIGUCHI ,  Yoshinao TANIGUCHI

IPC: G01D5/24 ,  G06F3/041 ,  G06F3/044

CPC classification number: G01D5/2405 ,  G06F3/04166 ,  G06F3/044 ,  G06F2203/04107 ,  G06F2203/04108

Abstract: A capacitive sensor has: one or more front-side electrodes including at least one detection electrode; an elastic dielectric body disposed below the front-side electrodes; a shield electrode disposed below the elastic dielectric body; a first, second, and third voltage output unit that respectively outputs a first, second, and third AC voltage; and a detection unit that detects a proximity, a contact, and pressing of a detection target to the detection electrode. The first, second, and third AC voltages have substantially the same frequency. The amplitude of the first AC voltage is larger than or equal to the amplitude of the second AC voltage. The amplitude of the third AC voltage is smaller than the amplitude of the second AC voltage. The first AC voltage is output to a driving unit coupled to the detection electrode with capacitances intervening between them. The second AC voltage is applied to the detection electrode.