Title:
CAPACITIVE SENSOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/062956
Kind Code:
A1
Abstract:
The present invention relates to a capacitive sensor device and, more particularly, to a capacitive sensor device which may improve sensitivity by using mutual capacitance, which is reduced in contact with a conductor or a fingerprint, and self-capacitance, which is increased in contact with a conductor or a fingerprint, in place of feedback capacitance, which is the fixed capacitance, and increasing an output signal value of a charge amplifier to be larger than when using the feedback capacitance, may be made compact without the use of a capacitor in amplifying a signal, and may internally apply a driving voltage to prevent signal loss due to metal packaging of a terminal device.
Inventors:
MOON BYOUNG KWON (KR)
LEE JAE PYO (KR)
KIM TAE WOON (KR)
KOH JIN SEOK (KR)
LEE JAE PYO (KR)
KIM TAE WOON (KR)
KOH JIN SEOK (KR)
Application Number:
PCT/KR2017/011007
Publication Date:
April 05, 2018
Filing Date:
September 29, 2017
Export Citation:
Assignee:
SEMISENS CO LTD (KR)
International Classes:
G01R27/26; G06F3/044; H03K17/955
Foreign References:
| KR20150077203A | 2015-07-07 | |||
| US20150310248A1 | 2015-10-29 | |||
| KR20150089917A | 2015-08-05 | |||
| KR20150060565A | 2015-06-03 | |||
| KR20140017002A | 2014-02-10 |
Attorney, Agent or Firm:
KIM, Hyun Jin (KR)
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