-
1.发明申请公开(公告)号：US20180209858A1
公开(公告)日：2018-07-26
申请号：US15925768
申请日：2018-03-20
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Inventor： Lin FENG , Hong JIANG
CPC classification number: G01L1/144 , G06F3/0416 , G06F3/044 , H03F3/45475 , H03F2200/261 , H03F2203/45116 , H03F2203/45138 , H03F2203/45156 , H03F2203/45514
Abstract: An apparatus for detecting capacitance, an electronic device and an apparatus for detecting a force are disclosed. The apparatus for detecting capacitance includes: a signal driving circuit (110), configured to periodically charge and discharge at least one capacitor to be detected; a conversion circuit (120), configured to convert a capacitance signal of the at least one capacitor to be detected into a voltage signal; and a cancellation circuit (130), configured to cancel initial capacitance of the at least one capacitor to be detected, so that the voltage signal is associated with a capacitance change of the at least one capacitor to be detected. The apparatus for detecting capacitance could improve the anti-interference performance and improve the accuracy of capacitance detection.
-
公开(公告)号：US20180081467A1
公开(公告)日：2018-03-22
申请号：US15798075
申请日：2017-10-30
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Inventor： Hong JIANG , Lin FENG , Zhongbo LUO
IPC: G06F3/044 , G06F3/041 , G06F3/0354 , G06K9/00
Abstract: A pressure detection apparatus includes: a drive power supply, a differential circuit, a pressure calculation unit, and at least one pressure sensor. Each pressure sensor includes a first electrode plate, a second electrode plate, a third electrode plate, a first elastic dielectric layer, and a second elastic dielectric layer. One detection capacitor is formed between the first electrode plate and the second electrode plate, and one detection capacitor is formed between the first electrode plate and the third electrode plate. The pressure sensor is connected between the drive power supply and an input terminal of the differential circuit, and an output terminal of the differential circuit is connected to the pressure calculation unit.
-
公开(公告)号：US20220256272A1
公开(公告)日：2022-08-11
申请号：US17497197
申请日：2021-10-08
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Inventor： Lin FENG
Abstract: A pressure detection module and an electronic device are provided. The pressure detection module is arranged on an inner surface of a housing of the electronic device, and includes a first circuit board, a second circuit board, a force transmission member, a first electrode, and a second electrode. The first circuit board is fixedly connected to the second circuit board by a fixing member. The first electrode is fixed to the first circuit board, the second electrode is fixed to the second circuit board, and the first electrode is arranged opposite the second electrode. The force transmission member is located between a force input area of the housing and the first circuit board, and configured to transmit an external pressure received by the force input area to the first circuit board and drive the first electrode on the first circuit board to move in a direction toward the second electrode.
-
公开(公告)号：US20210397293A1
公开(公告)日：2021-12-23
申请号：US17137641
申请日：2020-12-30
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Inventor： Lin FENG , Wangwang YANG
Abstract: Provided are a capacitance detection apparatus and an electronic device. The capacitance detection apparatus includes: a chip; and a detection electrode layer, where the detection electrode layer is integrally disposed with the chip and electrically connected to the chip, the detection electrode layer includes at least one detection electrode configured to form at least one capacitance detection channel, the at least one capacitance detection channel is respectively configured to output at least one capacitance detection signal, and the chip is configured to process the at least one capacitance detection signal.
-
-
-
Search Results
4
records
(took 0.015 seconds)
