公开(公告)号：US20230365147A1

公开(公告)日：2023-11-16

申请号：US18305716

申请日：2023-04-24

Applicant: Alps Alpine Co., Ltd.

Inventor： Shinichi ENDO ,  Sho TAGUCHI

IPC: B60W50/08 ,  B60W40/08

CPC classification number: B60W50/08 ,  B60W40/08 ,  B60W2050/0056

Abstract: A contact deciding apparatus includes: reference signal creating units that create first and second reference signals, with a sine wave, that have the same frequency as a detection signal output from a sensor unit, and are respectively in phase with and out of phase with the detection signal; a demodulation circuit that creates first and second demodulation signals by multiplying the detection signal respectively by the first and second reference signals; low-pass filters that extract first and second direct-current signals, which are respectively the direct-current components of the first and second demodulation signals; and a contact deciding unit that makes a decision about contact according to the first direct-current signal. The contact deciding unit decides that the connection state between the sensor unit and the detection circuit is abnormal when the first and second direct-current signals change in the same direction and normal when these signals change in opposite directions.

公开(公告)号：US20230013855A1

公开(公告)日：2023-01-19

申请号：US17809094

申请日：2022-06-27

Applicant: ALPS ALPINE CO., LTD.

Inventor： Shinichi ENDO ,  Hiroki NAGAKUSA ,  Ryo KOMATSU ,  Sho TAGUCHI ,  Daisuke WASHIO

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

Abstract: A touch detecting apparatus includes an electrostatic sensor provided at an object; and a processor configured to detect whether a hand touches the object based on a capacitance measured by the electrostatic sensor. The processor is configured to, in response to the capacitance being greater than or equal to a first touch threshold, detect that the hand touches the object, and, for a second predetermined time from when a change amount of the capacitance during a first predetermined time becomes greater than or equal to a noise threshold, continue a state where a correction value has been added to the first touch threshold.