公开(公告)号：US12044584B2

公开(公告)日：2024-07-23

申请号：US17771818

申请日：2021-12-31

Applicant: ANHUI UNIVERSITY

Inventor： Xiaohui Guo ,  Zhiliang Chen ,  Pengbin Gui ,  Siliang Wang ,  Wei Zeng ,  Xingang Ren ,  Lixia Yang ,  Yaohua Xu ,  Zhixiang Haung

IPC: G01L1/14

CPC classification number: G01L1/144

Abstract: A high sensitivity flexible three-dimensional force tactile sensor includes a hemispherical contact, wherein the hemispherical contact includes a tray with a groove on the surface and a hemispherical protrusion arranged in the groove. A flexible inverted cone component connected to the lower surface of the hemispherical contact, wherein a plurality of flexible triangular excitation electrode is arranged on the side surface of the flexible inverted cone component. A flexible common electrode surrounding part of the flexible triangular excitation electrode, wherein a first cavity with an opening is opened inside the flexible common electrode, parts of the flexible triangular excitation electrode and the flexible inverted cone component are arranged in the first cavity of the flexible common electrode. The flexible triangular excitation electrode and the flexible inverted cone component have no contact with the inner wall of the first cavity of the flexible common electrode to form an air cavity.

公开(公告)号：US20240142320A1

公开(公告)日：2024-05-02

申请号：US18410843

申请日：2024-01-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hironobu UKITSU ,  Yuta MORIURA ,  Susumu URAGAMI ,  Takashi MATSUMOTO

IPC: G01L1/14

CPC classification number: G01L1/144 ,  G01L1/146

Abstract: A load detection system includes: a first load sensor including a first element part in which capacitance changes in accordance with a load; a first detection circuit configured to perform charging and discharging of the first element part and acquire a voltage according to the capacitance at a detection timing in a charge period; a second load sensor including a second element part in which capacitance changes in accordance with a load; a second detection circuit configured to perform charging and discharging of the second element part and acquire a voltage according to the capacitance at a detection timing in a charge period; and a synchronization generation part configured to synchronize the charging of the first element part and the charging of the second element part.

公开(公告)号：US11860048B2

公开(公告)日：2024-01-02

申请号：US16629380

申请日：2018-07-10

Applicant: The Board of Trustees of the Leland Stanford Junior University

Inventor： Zhenan Bao ,  Mark R. Cutkosky ,  Jooyeun Ham

IPC: G01L1/14 ,  B25J13/08 ,  G01L1/22 ,  G01L9/12 ,  G01L19/00 ,  H01G4/012 ,  H01G4/33 ,  H03K17/96 ,  A61B5/00

CPC classification number: G01L1/144 ,  B25J13/081 ,  G01L1/22 ,  G01L9/12 ,  G01L19/0092 ,  H01G4/012 ,  H01G4/33 ,  H03K17/962 ,  A61B5/6843 ,  A61B2562/0247 ,  A61B2562/0261 ,  H03K2217/96062 ,  H03K2217/960755

Abstract: Aspects of various embodiments are directed to sensor apparatuses and methods thereof. An example sensor apparatus includes a capacitor and sensor circuitry. The capacitor includes a first substrate having a first electrode, a second substrate having a second electrode, and a dielectric layer. The dielectric layer has a plurality of dielectric structures arranged in a pattern, the first and second electrode being separated by the dielectric layer and arranged with an overlapping area with respect to one another. The sensor circuitry is coupled to the capacitor and configured and arranged to detect normal and shear forces applied to the sensor apparatus based on changes in capacitance derived from changes in at least one of a distance between first and second electrodes and the overlapping area of the first and second electrodes.

公开(公告)号：US20230332962A1

公开(公告)日：2023-10-19

申请号：US18207680

申请日：2023-06-09

Applicant: PixArt Imaging Inc.

Inventor： CHIH-MING SUN

IPC: G01L1/14 ,  H05K1/11 ,  H05K1/03

CPC classification number: G01L1/144 ,  H05K1/118 ,  H05K1/0393 ,  H05K2201/10151

Abstract: There is provided a force sensor including a substrate and a polymer material layer. The substrate has a circuit layout that includes a first electrode and a second electrode configured to form a capacitor therebetween. The polymer material layer covers at least on a space between the first electrode and the second electrode, and is used to change capacitance of the capacitor while being pressed.

公开(公告)号：US20230324247A1

公开(公告)日：2023-10-12

申请号：US18322883

申请日：2023-05-24

Applicant: Wacom Co., Ltd.

Inventor： Yuto MORI ,  Mamoru OGATA ,  Kenichi NINOMIYA

IPC: G01L5/22 ,  G01L1/14 ,  G01L25/00 ,  G06F3/0354

CPC classification number: G01L25/00 ,  G01L1/144 ,  G01L5/22 ,  G06F3/03545

Abstract: Disclosed is a characteristic adjustment system of pressure detection output including an input tool that, in operation, performs an input operation by being brought into contact with an input surface and that includes a pressure detector that, in operation, detects a pressure applied to a portion of the input tool in contact with the input surface, a detection device that, in operation, generates pressure detection output by acquiring information regarding the pressure detected by the pressure detector of the input tool, a load measurement device that, in operation, measures a load applied to the input tool, and an adjustment device that, in operation, adjusts the pressure detection output from the detection device such that the pressure detection output has characteristics in a predetermined relation to a load measurement result from the load measurement device.

公开(公告)号：US11761830B2

公开(公告)日：2023-09-19

申请号：US17235664

申请日：2021-04-20

Applicant: PixArt Imaging Inc.

Inventor： Yen-Po Chen ,  Hao-Che Liu ,  Yen-Chang Chu ,  Chih-Ming Sun

IPC: G01L1/00 ,  G01L1/14 ,  H05K1/11 ,  H05K1/03

CPC classification number: G01L1/144 ,  H05K1/0393 ,  H05K1/118 ,  H05K2201/10151

Abstract: There is provided a force sensor including a substrate and a polymer material layer. The substrate has a circuit layout that includes a first electrode and a second electrode configured to form a capacitor therebetween. The polymer material layer covers at least on a space between the first electrode and the second electrode, and is used to change capacitance of the capacitor while being pressed. The force sensor is arranged inside a stem of an earphone for detecting the user input.

公开(公告)号：US11662361B2

公开(公告)日：2023-05-30

申请号：US17168698

申请日：2021-02-05

Applicant: Atlantic Inertial Systems Limited

Inventor： Christopher Paul Fell ,  Alan Malvern

IPC: G01P15/125 ,  G01D3/06 ,  G01L1/14 ,  G01P21/00

CPC classification number: G01P15/125 ,  B81B2201/033 ,  G01D3/066 ,  G01L1/144 ,  G01P21/00

Abstract: A capacitive accelerometer includes a proof mass, first and second fixed capacitive electrodes, and a DC biasing element arranged to apply a DC voltage (VB) to the proof mass based on a threshold acceleration value. A first closed loop circuit is arranged to detect a signal resulting from displacement of the proof mass and control the pulse width modulation signal generator to apply the first and second drive signals V1, V2 with a variable mark:space ratio. A second closed loop circuit keeps the mark:space ratio constant and to change the magnitude, VB, of the DC voltage applied to the proof mass by the DC biasing element so as to provide a net electrostatic restoring force on the proof mass for balancing the inertial force of the applied acceleration and maintaining the proof mass at a null position, when the applied acceleration is greater than a threshold acceleration value.

公开(公告)号：US11662258B2

公开(公告)日：2023-05-30

申请号：US16774437

申请日：2020-01-28

Applicant: Wiliot, LTD.

Inventor： Yaron Elboim ,  Eylon Gersten

IPC: H04L67/12 ,  G01L1/22 ,  G01L1/14 ,  G06K7/10

CPC classification number: G01L1/2256 ,  G01L1/144 ,  G06K7/10356 ,  G06K7/10366 ,  H04L67/12

Abstract: A Internet of Things (IoT) tag for measuring transmitted force applied on the IoT tag, including a substrate, a force sensor integrated on the substrate, and a sensing circuit integrated on the substrate and configured to output a digital word measurement in response to an applied force on the force sensor.

公开(公告)号：US20190233279A1

公开(公告)日：2019-08-01

申请号：US16257516

申请日：2019-01-25

Applicant: Seiko Epson Corporation

Inventor： Yoshinao YANAGISAWA

IPC: B81C1/00 ,  B81B7/00 ,  H01L23/04 ,  H01L23/00 ,  G01P15/125 ,  G01L1/14 ,  G01P15/08 ,  G01P1/02

CPC classification number: B81C1/0023 ,  B81B7/0048 ,  B81B2201/0235 ,  B81B2201/0242 ,  G01L1/144 ,  G01P1/023 ,  G01P15/0802 ,  G01P15/125 ,  H01L23/04 ,  H01L24/49 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48227 ,  H01L2224/73265

Abstract: A physical quantity sensor includes a substrate, an acceleration sensor mounted on the substrate, an integrated circuit mounted on the substrate and stacked with the acceleration sensor, and serial communication wirings provided to the substrate. In a plan view of the acceleration sensor element, a bonding wire connecting the acceleration sensor element to the integrated circuit is disposed on an opposite side to the serial communication wirings with respect to a virtual central line of the acceleration sensor element.

公开(公告)号：US20190195703A1

公开(公告)日：2019-06-27

申请号：US16182188

申请日：2018-11-06

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Masato HIRAI ,  Takeshi YOSHIZAWA ,  Takeshi KUWANO

IPC: G01L1/14

CPC classification number: G01L1/144 ,  G01L1/146

Abstract: To improve the efficiency of pressure detection, a driver applies a positive-phase signal to a capacitance element from an opposite side to a coupling point in a control device. Another driver applies a reverse-phase signal to another capacitance element from an opposite side to the coupling point. A control unit detects pressures applied to the capacitance elements based on a potential fluctuation at the coupling point.