公开(公告)号：US20210240289A1

公开(公告)日：2021-08-05

申请号：US17239896

申请日：2021-04-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hiroaki Kitada

IPC: G06F3/044

Abstract: A pressing sensor includes a piezoelectric film and first and second detection electrodes. The piezoelectric film has a chiral polymer drawn at least in a uniaxial direction, and has a first main surface and a second main surface. The first and second detection electrodes are arranged on at least one of the first and second main surfaces. The first and second detection electrodes are arranged so as to face each other obliquely to the uniaxial direction.

公开(公告)号：US10928956B2

公开(公告)日：2021-02-23

申请号：US16594672

申请日：2019-10-07

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hiroaki Kitada

IPC: G06F3/041 ,  G06F3/044

Abstract: A pressure sensor for use in a folding structure that includes a foldable piezoelectric film, a first electrode disposed on a first main surface of the piezoelectric film, a plurality of second electrodes disposed side by side on a second main surface of the piezoelectric film so as to face the first electrode and to be positioned along a direction orthogonal to a folding line of the piezoelectric film, a folding detection unit that detects a folded state of the piezoelectric film, and a processing unit that changes processing of at least one of signals generated on the second electrode when the piezoelectric film receives a pressing operation and the folding detection unit is detecting the folded state of the piezoelectric film.

公开(公告)号：US10401986B2

公开(公告)日：2019-09-03

申请号：US15452237

申请日：2017-03-07

Applicant: SEIKO EPSON CORPORATION ,  MURATA MANUFACTURING CO., LTD.

Inventor： Daigo Yamano ,  Shingo Wakimoto ,  Takashi Kihara ,  Masamichi Ando ,  Hiroaki Kitada ,  Jun Endo ,  Yoshihiro Yamaguchi

IPC: G06F3/038 ,  G06F3/033 ,  G06F3/0354

Abstract: A pointer includes: a pointer tip having a tip configured to point a position; a transmitter configured to emit a signal from the pointer tip; and a main body connected to the pointer tip. The main body includes: an exterior housing forming an exterior; a detector configured to detect displacement of the exterior housing and output a detection signal; and a controller configured to change an operation state of the pointer in accordance with the detection signal. The detector includes: a detection device provided on an inner surface of the exterior housing and configured to detect the displacement; and a signal outputter configured to output the detection signal in the case where the detection device detects the displacement.

公开(公告)号：US10146380B2

公开(公告)日：2018-12-04

申请号：US15139685

申请日：2016-04-27

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hidekazu Kano ,  Hiroaki Kitada ,  Takafumi Inoue

IPC: G09G5/00 ,  G06F3/044 ,  G06F3/0488 ,  G06F3/041

Abstract: A touch input device includes a sensor for detecting a plurality of touch positions at which a touch operation has been performed on an operation surface, a pressure sensor for detecting a pressing operation which has been performed on the operation surface at at least one of the touch positions, and a control unit. The control unit (a) identifies a first of the touch positions as a support position which is not used to input information into the input device by way of movement of the support position, (b) identifies at least second and third of the touch positions as input touch positions used to input information into the input device by way of movement of the input touch positions, and (c) causes the input device to carry out an operation identified by the movement of the input touch positions.

公开(公告)号：US20170242510A1

公开(公告)日：2017-08-24

申请号：US15591298

申请日：2017-05-10

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hidekazu Kano ,  Jun Endo ,  Takafumi Inoue ,  Hiroaki Kitada

IPC: G06F3/044

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.

公开(公告)号：US20160246413A1

公开(公告)日：2016-08-25

申请号：US15083681

申请日：2016-03-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hidekazu Kano ,  Hiroaki Kitada ,  Takafumi Inoue

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F1/1626 ,  G06F1/1684 ,  G06F3/0412 ,  G06F2203/04105

Abstract: A mobile terminal device receives an input of a pressing operation when an operation surface is pressed. A pressing amount detecting unit detects whether or not the operation surface has been pressed. A grip determining unit determines whether or not the housing has been gripped by a user. A threshold adjusting unit adjusts a press detection sensitivity of the pressing amount detecting unit when the housing is gripped by the user and when the housing is not gripped by the user. By this means, it is possible to provide an input device which adequately detects a pressing operation, and a program which is executed by this input device.

Abstract translation: 当按下操作表面时，移动终端设备接收按压操作的输入。 按压量检测单元检测操作表面是否被按压。 把手确定单元确定外壳是否已被使用者抓住。 当壳体被使用者抓住并且当壳体没有被使用者握住时，阈值调节单元调节按压量检测单元的按压检测灵敏度。 通过这种方式，可以提供一种充分检测按压操作的输入装置和由该输入装置执行的程序。

公开(公告)号：US20200042137A1

公开(公告)日：2020-02-06

申请号：US16592931

申请日：2019-10-04

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hidekazu Kano ,  Hiroaki Kitada ,  Shiori Nagamori

IPC: G06F3/041 ,  G01L9/08

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.

公开(公告)号：US10378973B2

公开(公告)日：2019-08-13

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 ,  G01L1/22

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.

公开(公告)号：US10120477B2

公开(公告)日：2018-11-06

申请号：US14671441

申请日：2015-03-27

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hiroaki Kitada ,  Toru Ishii

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch input device includes a touch panel, a push amount calculating unit and a touch detection signal generating unit. The touch panel includes piezoelectric and electrostatic sensors. The piezoelectric sensor outputs to the push amount calculating unit a push signal corresponding to a displacement amount obtained by pushing an operation surface. The electrostatic sensor outputs touch signals, corresponding to a touch and a non-touch, to a touch detection signal generating unit. The touch detection signal generating unit outputs to the push amount calculating unit the touch detection signals binarized according to the touch and non-touch state. The push amount calculating unit integrates differences between push signals and a reference potential during a touch state, generates a push amount detection signal and outputs the push amount detection signal. This unit resets a reference potential during a period in which a touch detection signal indicating a non-touch state is inputted.

公开(公告)号：US20180011628A1

公开(公告)日：2018-01-11

申请号：US15696754

申请日：2017-09-06

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hidekazu Kano ,  Hiroaki Kitada ,  Nobuhito Tsubaki

IPC: G06F3/0484 ,  G06F3/044 ,  G06F3/0481 ,  G06F3/0482

CPC classification number: G06F3/04845 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/04815 ,  G06F3/0482 ,  G06F3/0484 ,  G06F3/0488 ,  G06F2203/04105

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.