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公开(公告)号：US09690414B2
公开(公告)日：2017-06-27
申请号：US14844453
申请日：2015-09-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hidekazu Kano , Jun Endo , Takafumi Inoue , Hiroaki Kitada
IPC: G06F3/041 , G06F3/044 , G01L1/16 , H01L41/113
CPC classification number: G06F3/0414 , G01L1/16 , G06F3/044 , G06F2203/04105 , G06F2203/04106 , H01L41/1132
Abstract: A touch sensor that includes a pressure detection sensor and a position detection sensor. The pressure detection sensor includes a piezoelectric film, a first piezoelectricity detecting electrode adjacent a first principal surface of the piezoelectric film, and a second piezoelectricity detecting electrode adjacent a second principal surface of the piezoelectric film. The position detection sensor includes a dielectric substrate, a plurality of first position detecting electrodes adjacent a first principal surface of the dielectric substrate, and a plurality of second position detecting electrodes adjacent a second principal surface of the dielectric substrate. In the pressure detection sensor, the second piezoelectricity detecting electrode includes an electrode non-forming section in a region where the first position detecting electrode and the second position detecting electrode overlap each other.
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公开(公告)号：US20170176268A1
公开(公告)日：2017-06-22
申请号：US15454155
申请日：2017-03-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： TAKASHI KIHARA , Masamichi Ando , Hiroaki Kitada , Jun Endo , Yoshihiro Yamaguchi
IPC: G01L1/16 , G06F3/0354
CPC classification number: G01L1/16 , G01L1/2287 , G06F3/03545
Abstract: A device for detecting a holding state of an object. The device includes a housing for the object that has a shape that can be held by an operator and a piezoelectric sensor attached to the housing. Moreover, a detecting unit can detects a holding state of the housing by using a fluctuation amount of an output voltage of the piezoelectric sensor. The housing has a shape having a hollow space and the piezoelectric sensor has a flat film shape and is disposed in contact with an inner wall surface of the housing. The piezoelectric film produces charges when stretched and contracted in response to a displacement of the housing that are outputted as a voltage to the detecting unit. When detecting that the output voltage significantly fluctuates, the detecting unit identifies that the object is being held.
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公开(公告)号：US20150378493A1
公开(公告)日：2015-12-31
申请号：US14844453
申请日：2015-09-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hidekazu Kano , Jun Endo , Takafumi Inoue , Hiroaki Kitada
IPC: G06F3/041
CPC classification number: G06F3/0414 , G01L1/16 , G06F3/044 , G06F2203/04105 , G06F2203/04106 , H01L41/1132
Abstract: A touch sensor that includes a pressure detection sensor and a position detection sensor. The pressure detection sensor includes a piezoelectric film, a first piezoelectricity detecting electrode adjacent a first principal surface of the piezoelectric film, and a second piezoelectricity detecting electrode adjacent a second principal surface of the piezoelectric film. The position detection sensor includes a dielectric substrate, a plurality of first position detecting electrodes adjacent a first principal surface of the dielectric substrate, and a plurality of second position detecting electrodes adjacent a second principal surface of the dielectric substrate. In the pressure detection sensor, the second piezoelectricity detecting electrode includes an electrode non-forming section in a region where the first position detecting electrode and the second position detecting electrode overlap each other.
Abstract translation: 一种触摸传感器，包括压力检测传感器和位置检测传感器。 压力检测传感器包括压电膜，与压电膜的第一主表面相邻的第一压电检测电极和与压电膜的第二主表面相邻的第二压电检测电极。 位置检测传感器包括电介质基板，与电介质基板的第一主表面相邻的多个第一位置检测电极和与电介质基板的第二主表面相邻的多个第二位置检测电极。 在压力检测传感器中，第二压电检测电极在第一位置检测电极和第二位置检测电极彼此重叠的区域中包括电极非形成部。
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公开(公告)号：US12072230B2
公开(公告)日：2024-08-27
申请号：US18047390
申请日：2022-10-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroaki Kitada
CPC classification number: G01H11/08 , G01H1/12 , H04R1/1016 , H04R1/1058
Abstract: An electronic device is provided that includes a first casing and a second casing, and a distortion sensor attached to an inner wall of the casing. One side of the first casing is opened by a first opening, one side of the second casing is opened by a second opening, the casing is formed by fixing the first casing to the second casing to face each other. Moreover, the first and second casings are fixed by two or more fixing portions, the distortion sensor has a strip shape having first and second ends in the longitudinal direction, and the distortion sensor is attached to an inner wall of the second casing such that the longitudinal direction is a direction along an edge of the second opening, the first end is relatively close to the fixing portion, and the second end is far from the fixing portion.
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公开(公告)号：US11023069B2
公开(公告)日：2021-06-01
申请号：US16592931
申请日：2019-10-04
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hidekazu Kano , Hiroaki Kitada , Shiori Nagamori
Abstract: A pressure sensor that includes a piezoelectric film having a flat part and a curved part and having opposed first and second main surfaces, a first electrode on the first main surface of the piezoelectric film, and a second electrode on the second main surfaces of the piezoelectric film. When the flat part of the piezoelectric film receives a pressing operation a first output is generated, and when the curved part of the piezoelectric film receives a pressing operation a second output different from the first output is generated.
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Patent Agency Ranking
公开(公告)号：US10365809B2
公开(公告)日：2019-07-30
申请号：US15696754
申请日：2017-09-06
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hidekazu Kano , Hiroaki Kitada , Nobuhito Tsubaki
IPC: G06F3/041 , G06F3/0484 , G06F3/044 , G06F3/0481 , G06F3/0488 , G06F3/0482
Abstract: A display device includes a housing, an operation surface, a position sensor, a press sensor, and a display unit. The position sensor detects a touched position on the operation surface. The press sensor detects a press on the operation surface. The display unit displays an image. When the press sensor detects a pressing amount not smaller than a first threshold, a control unit sets, as a rotation axis of a three-dimensional image, a direction orthogonal to the sliding direction of the touched position detected in the position sensor. The control unit then rotates the three-dimensional image in accordance with the sliding direction of the touched position detected in the position sensor.
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公开(公告)号：US10013093B2
公开(公告)日：2018-07-03
申请号：US14876418
申请日：2015-10-06
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Hidekazu Kano , Hiroaki Kitada
CPC classification number: G06F3/0414 , G06F3/0416 , G06F3/044 , G06F2203/04104 , G06F2203/04105
Abstract: A touch input device that includes an operation input unit, a control unit, a memory unit and a display unit. The operation input unit includes a pressing sensor and a touch sensor. When obtaining a detected operation position (x, y) based on an operation detection signal from the touch sensor, the control unit compares a signal level DSp of a press detection signal from the pressing sensor and a first threshold THSp. When determining that the signal level DSp is larger than the first threshold THSp, the control unit reads the detected operation position (x, y) obtained immediately before the determination, and fixes the detected operation position (x, y). The control unit determines operation input contents by using the fixed detected operation position (x, y) and a pressing amount based on the signal level DSp obtained at each sampling timing.
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公开(公告)号：US09891772B2
公开(公告)日：2018-02-13
申请号：US14876391
申请日：2015-10-06
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroaki Kitada , Takafumi Inoue , Hidekazu Kano
CPC classification number: G06F3/044 , G06F3/016 , G06F3/0412 , G06F3/0414 , G06F2203/04103 , G06F2203/04105
Abstract: A touch input device that includes a touch sensor and a control unit. The touch sensor includes a base material, a piezoelectric film, a plurality of first detecting conductors and a plurality of second detecting conductors. The base material is a flat plate. The piezoelectric film is made of uniaxially stretched PLLA, and is arranged on one principal surface of the base material. The first detecting conductors are arranged on a surface of the piezoelectric film opposite to the base material. The plurality of second detecting conductors are arranged on a surface opposite to the surface of the base material which abuts on the piezoelectric film. The control unit detects an operation position and a press by using detection signals outputted from the first detecting conductors and the second detecting conductors.
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公开(公告)号：US09658677B2
公开(公告)日：2017-05-23
申请号：US14683772
申请日：2015-04-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroaki Kitada
CPC classification number: G06F1/3262 , G06F3/017 , G06F3/041 , G06F3/0414 , G06F3/0416 , G06F2203/04105 , H04M1/72519 , H04M2250/22
Abstract: A touch input device includes a touch sensor and a wake-up control unit. The touch sensor includes a piezoelectric sensor and a detection signal generating unit. The touch sensor outputs sensing signals corresponding to displacement amount of a push and relaxation of the push of an operation surface, and a displacement direction. The detection signal generating unit outputs a displacement detection signal from the sensing signal. The wake-up control unit detects a push from a change in a voltage of the displacement detection signal. The wake-up control unit starts clocking upon detection of the push, and generates and outputs a wake-up signal when detecting relaxation of the push based on the change in the voltage of the displacement detection signal within a detection time.
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公开(公告)号：US09582654B2
公开(公告)日：2017-02-28
申请号：US15070519
申请日：2016-03-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroaki Kitada , Hidekazu Kano , Takafumi Inoue
CPC classification number: G06F21/36 , G06F3/0414 , G06F3/0416 , G06F3/04883 , G06F21/31 , G06F2203/04105 , H04W12/06 , H04W12/08
Abstract: A mobile device includes a housing, a sensor and a deformation detecting IC which detect deformation of the housing, a memory which stores a pattern database in which patterns of the deformation of the housing are registered in advance, and an authentication unit which performs authentication based on whether or not the deformation of the housing detected by the sensor and the deformation detecting IC corresponds to a pattern registered in the pattern database.
Abstract translation: 移动装置包括壳体，传感器和变形检测IC，其检测壳体的变形;存储器，其存储预先登记了壳体的变形图案的图案数据库;以及基于认证的认证单元 关于传感器和变形检测IC检测到的壳体的变形是否对应于在图案数据库中登记的图案。
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