Title:
静電検出センサ
Document Type and Number:
Japanese Patent JP6582249
Kind Code:
B2
Abstract:
The electrostatic detection sensor has a first electrode, a second electrode, and a third electrode. A controller connects the first electrode and the second electrode, and applies a first drive voltage thereto to obtain a first intensity. The controller applies a second drive voltage to the first electrode while keeping the second electrode and the third electrode at a ground potential to obtain a second intensity. The controller applies a third drive voltage to the third electrode while grounding the first electrode to the ground potential and keeping the second electrode open to obtain a third intensity. Then, the controller determines whether an object is approaching based on first, second, and third computed values which are computed temporal changes in the first, second, and third intensities, respectively.
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Inventors:
Takeda Sawada
Yasuhiro Yamashita
Takuma Besshi
Yasuhiro Yamashita
Takuma Besshi
Application Number:
JP2017557675A
Publication Date:
October 02, 2019
Filing Date:
September 30, 2016
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
G01V3/08
Domestic Patent References:
| JP2014228335A | ||||
| JP2000039479A |
Foreign References:
| WO2015093006A1 | ||||
| WO2016132665A1 |
Attorney, Agent or Firm:
Kenji Kamada
Koichi Nomura
Koichi Nomura