ELECTROSTATIC SENSOR, CONTROL DEVICE, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

WIPO Patent Application WO/2020/262167

A1

In the present invention, an electrostatic capacitance detection unit comprises a charging/discharging circuit for detecting electrostatic capacitance between an electrode and object. A processing unit controls the operation of the charging/discharging circuit. The processing unit repeatedly executes, at a designated period (T1), a first operation (O1) in which a first electrostatic capacitance (C1) is acquired that has been detected by actuating the charging/discharging circuit and a second operation (O2) in which a second electrostatic capacitance (C2) is acquired that has been detected by actuating the charging/discharging circuit after the end of the first operation (O1). The processing unit determines whether the object has been operated on the basis of the first electrostatic capacitance (C1). If a determination is made that the object has been operated, the processing unit verifies the determination on the basis of the second electrostatic capacitance (C2). The amount of time (T2) between the start of the first operation and the start of the second operation is set such that expected environmental noise will make the difference between the first electrostatic capacitance (C1) and second electrostatic capacitance (C2) greater than or equal to a designated threshold within the amount of time (T2).

GORO YOHEI (JP)
SHIMIZU NORIHIRO (JP)
ITO YOHEI (JP)
FUKUHARA SHINGO (JP)

PCT/JP2020/023804

December 30, 2020

June 17, 2020

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TOKAI RIKA CO LTD (JP)

G01R27/26; G06F3/041

WO2014054209A1	2014-04-10
WO2018235706A1	2018-12-27

JP2018067247A	2018-04-26
JP2016114571A	2016-06-23
JP2017031730A	2017-02-09
JP2012118763A	2012-06-21

SHIN-EI PATENT FIRM, P.C. (JP)

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