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Patent Searching and Data


Title:
SENSOR DEVICE, SENSOR MODULE, AND SENSED-PRESSURE DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/026815
Kind Code:
A1
Abstract:
A sensor device according to the present invention is provided with: a sensor unit; an input-side bipolar transistor; a bias resistor that supplies a current between the sensor unit and the input-side bipolar transistor; an output-side bipolar transistor that constitutes a current mirror circuit with the input-side bipolar transistor; a discharging diode; a reference capacitor that is connected between the output-side bipolar transistor and a power supply and that is charged; and a computation circuit that detects that the sensor unit has been pressed on the basis of a change in the period taken for the potential at a detection-side terminal, which is a node between the output-side bipolar transistor and the reference capacitor, to reach a prescribed threshold.

Inventors:
KANEHIRA HIROKI (JP)
AKAMA HIROSHI (JP)
SATO KATSUNORI (JP)
KAWAMATA KAZUTO (JP)
Application Number:
PCT/JP2019/028123
Publication Date:
February 06, 2020
Filing Date:
July 17, 2019
Export Citation:
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Assignee:
DEXERIALS CORP (JP)
International Classes:
G01L1/14; G06F3/041; H01H36/00; H03K17/955
Foreign References:
JP2010002949A2010-01-07
JP2011134000A2011-07-07
US20120286800A12012-11-15
JPS55142251A1980-11-06
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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