Title:
近接センサ及びコントローラ
Document Type and Number:
Japanese Patent JP7468785
Kind Code:
B2
Abstract:
A proximity sensor includes one or more detection electrodes to be capacitively coupled to an object, a contact electrode contactable with the object, an excitation circuit connected to one of the one or more detection electrodes or the contact electrode to supply an excitation voltage to the electrode to which the excitation circuit is connected, and a detection circuit connected to the other of the one or more detection electrodes or the contact electrode to generate, based on a detection voltage at the electrode connected to the detection circuit, a detection signal in response to an electrostatic capacitance between the one of the one or more detection electrodes and the object. The detection circuit generates the detection signal in response to the electrostatic capacitance. The detection signal indicates a proximity of the object in contact with the contact electrode to the one of the one or more detection electrodes.
Inventors:
Takatoshi Kato
Hiroshi Watanabe
Kohei Sugawara
Koichi Inoue
Hiroshi Watanabe
Kohei Sugawara
Koichi Inoue
Application Number:
JP2023522583A
Publication Date:
April 16, 2024
Filing Date:
April 22, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01H36/00; G01V3/08
Domestic Patent References:
| JP2016100099A | ||||
| JP2019050939A | ||||
| JP2006112959A | ||||
| JP2008511954A | ||||
| JP2012523191A | ||||
| JP2016006775A |
Attorney, Agent or Firm:
Hiroshi Okabe
Hidetaka Okabe
Hiroshi Takeuchi
Hidetaka Okabe
Hiroshi Takeuchi
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