公开(公告)号：US11275477B2

公开(公告)日：2022-03-15

申请号：US17308811

申请日：2021-05-05

Applicant: Alps Alpine Co., Ltd.

Inventor： Junji Hashida ,  Toru Takahashi ,  Toru Sawada ,  Yoshifumi Masumoto ,  Shinichi Higuchi ,  Koji Tsukamoto ,  Tomoyuki Yamai ,  Akihiro Takeda ,  Sadakazu Shiga

IPC: G06F3/044 ,  G06F3/041

Abstract: In an input device capable of reliably detecting, when an operator brings an operating body close to or into contact with an operation plane, absolute position information irrespective of a contact area size, third electrode arrays are disposed closer to the operation plane relative to second electrode arrays in a normal direction of the operation plane, the second electrode arrays have a portion protruding from the corresponding third electrode arrays when viewed in the normal direction, and assuming that a change amount of electrostatic capacitance between first and third electrode arrays occurred by an operation of the operating body is denoted by ΔC1 and a change amount of electrostatic capacitance between the first and second electrode arrays occurred by an operation of the operating body is denoted by ΔC2, a position of the operating body in the normal direction is calculated based on a ratio ΔC1/ΔC2.

公开(公告)号：US10746770B2

公开(公告)日：2020-08-18

申请号：US16154554

申请日：2018-10-08

Applicant: Alps Alpine Co., Ltd.

Inventor： Shinichi Higuchi

IPC: G01R27/26 ,  G06F3/044

Abstract: A capacitive sensor has: an electrode link that has a plurality of second transparent electrodes arranged in a predetermined direction; a first wiring part electrically connected to one end of the electrode link; a second wiring part electrically connected to another end of the electrode link; a central linking part that electrically connects a plurality of second transparent electrodes placed at the central portion of the detection area in the predetermined direction; and a peripheral linking part that electrically connects a plurality of second transparent electrodes placed in other than the central portion in the predetermined direction. The first wiring part and second wiring part are electrically connected to each other in a non-detection area. The electric resistance value of the central linking part is higher than the electric resistance value of the peripheral linking part.