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Title:
PRESSURE DETECTION APPARATUS AND INTELLIGENT TERMINAL
Document Type and Number:
WIPO Patent Application WO/2018/049639
Kind Code:
A1
Abstract:
A pressure detection apparatus and an intelligent terminal, relating to the technical field of input devices. The pressure detection apparatus comprises: a drive power supply (2), a differential circuit (3), a pressure calculation unit (4) and at least one pressure sensor (1), wherein each pressure sensor (1) comprises a first electrode plate (11), a second electrode plate (12), a third electrode plate (13), a first elastic medium layer and a second elastic medium layer; the first electrode plate (11) respectively forms two detection capacitors (C1, C2) with the second electrode plate (12) and the third electrode plate (13); the pressure sensor (1) is connected between the drive power supply (2) and an input end of the differential circuit (3); and an output end of the differential circuit (3) is connected to the pressure calculation unit (4). The pressure detection apparatus and the intelligent terminal improve the detection accuracy of pressure detection. Furthermore, the pressure detection apparatus can realize the multi-functionalization of an intelligent terminal when applied to the intelligent terminal.

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Inventors:
JIANG HONG (CN)
FENG LIN (CN)
LUO ZHONGBO (CN)
Application Number:
PCT/CN2016/099159
Publication Date:
March 22, 2018
Filing Date:
September 17, 2016
Export Citation:
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Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G01L9/12
Domestic Patent References:
WO2016083288A12016-06-02
Foreign References:
CN105067178A2015-11-18
CN202815751U2013-03-20
CN103308721A2013-09-18
CN202256381U2012-05-30
US20090140987A12009-06-04
Other References:
See also references of EP 3376195A4
Attorney, Agent or Firm:
SHANGHAI CHENHAO INTELLECTUAL PROPERTY LAW FIRM GENERAL PARTNERSHIP (CN)
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