[go: up one dir, main page]

WO2025142429A1 - Capteur de pression, procédé d'estimation de position de pression et programme d'estimation de position de pression - Google Patents

Capteur de pression, procédé d'estimation de position de pression et programme d'estimation de position de pression Download PDF

Info

Publication number
WO2025142429A1
WO2025142429A1 PCT/JP2024/043400 JP2024043400W WO2025142429A1 WO 2025142429 A1 WO2025142429 A1 WO 2025142429A1 JP 2024043400 W JP2024043400 W JP 2024043400W WO 2025142429 A1 WO2025142429 A1 WO 2025142429A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
main surface
detection electrode
holding plate
piezoelectric film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/JP2024/043400
Other languages
English (en)
Japanese (ja)
Inventor
譲仁 奥冨
洋輔 久保
勇希 橘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of WO2025142429A1 publication Critical patent/WO2025142429A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Definitions

  • the present invention relates to technology for estimating the pressing position.
  • the user interface device disclosed in Patent Document 1 when multiple contact positions are detected, determines one pressing position from among the detected contact positions.
  • this user interface device is based on the premise that even when contact operations are performed simultaneously at multiple positions, pressing operations are performed at only one position.
  • the object of the present invention is to provide a technology that makes it possible to distinguish the pressing position.
  • the pressure sensor of the present invention comprises a holding plate, a piezoelectric film having a first main surface and a second main surface opposite to the first main surface, which generates an electric charge in response to torsional deformation of the holding plate, a plurality of detection electrodes arranged on the first main surface of the piezoelectric film and detecting the electric charge generated on the piezoelectric film, a ground electrode arranged on the second main surface of the piezoelectric film, a detection unit detecting a voltage signal generated on the detection electrodes from the electric charge detected by the detection electrodes, and a processing unit processing the voltage signal detected by the detection unit, and the processing unit determines a target cell on the holding plate with respect to a position on the holding plate, and estimates the pressing position on the holding plate by calculating the difference between the sum of the voltage value of the detection electrode at the top left of the target cell and the voltage value of the detection electrode at the bottom right of the target cell and the sum of the voltage value of the detection electrode at the bottom left of the target cell and the voltage value of
  • the indentation position estimation method of the present invention is a pressure sensor including a holding plate, a piezoelectric film having a first main surface and a second main surface opposite to the first main surface, which generates an electric charge in response to torsional deformation of the holding plate, a plurality of detection electrodes arranged on the first main surface of the piezoelectric film and detecting the electric charge generated on the piezoelectric film, a ground electrode arranged on the second main surface of the piezoelectric film, a detection unit detecting a voltage signal generated in the detection electrodes from the electric charge detected by the detection electrodes, and a processing unit processing the voltage signal detected by the detection unit.
  • the processing unit determines a cell to be determined on the holding plate with respect to a position on the holding plate, and estimates the indentation position on the holding plate by calculating the difference between the sum of the voltage value of the detection electrode at the top left of the cell to be determined and the voltage value of the detection electrode at the bottom right of the cell to be determined and the sum of the voltage value of the detection electrode at the bottom left of the cell to be determined and the voltage value of the detection electrode at the top right of the cell to be determined as a feature of the indentation.
  • the pressing position estimation program of the present invention is mounted on a pressing sensor that includes a holding plate, a piezoelectric film having a first main surface and a second main surface opposite to the first main surface, which generates an electric charge in response to torsional deformation of the holding plate, a plurality of detection electrodes arranged on the first main surface of the piezoelectric film and detecting the electric charge generated on the piezoelectric film, a ground electrode arranged on the second main surface of the piezoelectric film, a detection unit that detects a voltage signal generated in the detection electrodes from the electric charge detected by the detection electrodes, and a processing unit that processes the voltage signal detected by the detection unit, and executes the processing unit to determine a cell to be determined on the holding plate with respect to a position on the holding plate, and to estimate the pressing position on the holding plate by calculating the difference between the sum of the voltage value of the detection electrode at the top left of the cell to be determined and the voltage value of the detection electrode at the bottom right of the cell to be determined and the sum
  • the present invention makes it possible to distinguish the pressing position.
  • FIG. 1 is a functional block diagram of a pressure sensor 1.
  • FIG. 2 is a cross-sectional view of the piezoelectric sensor 11.
  • FIG. 3 is a plan view showing an example of the arrangement of the detection electrodes 17.
  • FIG. 4 is a conceptual diagram showing the first cell.
  • FIG. 5 is a conceptual diagram showing an example of the voltage values of the respective detection electrodes.
  • FIG. 6 is a conceptual diagram showing another example of the voltage values of the respective detection electrodes.
  • FIG. 7 is a conceptual diagram showing a cell to be judged.
  • FIG. 8 is a conceptual diagram showing a modified example of the judgment target cell.
  • FIG. 9 is a conceptual diagram showing the second cell.
  • FIG. 10 is a conceptual diagram showing an example of the voltage values of the detection electrodes and the determination target cell.
  • FIG. 11 is a conceptual diagram showing the characteristic amount of depression when the voltage values shown in FIG. 10 are applied.
  • FIG. 12 is a conceptual diagram showing another example of the voltage values of the detection electrodes and the determination target cell.
  • FIG. 13 is a conceptual diagram showing the characteristic amount of depression when the voltage values shown in FIG. 12 are applied.
  • Fig. 14(A) is a diagram showing an example of the detection result of the voltage value of the detection electrode when the pressing position is one point.
  • Fig. 14(B) is a diagram showing the calculation result of the pressing feature amount when the voltage value shown in Fig. 14(A) is applied.
  • Fig. 14(C) is a diagram showing an example of the detection result of the voltage value of the detection electrode when the pressing position is two points.
  • Fig. 14(A) is a diagram showing an example of the detection result of the voltage value of the detection electrode when the pressing position is one point.
  • Fig. 14(B) is a diagram showing the calculation result of the pressing feature amount when the voltage value
  • FIG. 14(D) is a diagram showing the calculation result of the pressing feature amount when the voltage value shown in Fig. 14(C) is applied.
  • FIG. 15 is a conceptual diagram showing an example of a feature amount of depression.
  • FIG. 16 is a conceptual diagram showing positions where the depression feature amounts are compared with each other.
  • Fig. 17A is a conceptual diagram showing an example of a voltage value of a detection electrode while an object is being pressed at a pressing position p.
  • Fig. 17B is a conceptual diagram showing an example of a voltage value of a detection electrode while the object is being released at a pressing position p.
  • Fig. 18(A) is a conceptual diagram showing the characteristic amount of the indentation when the voltage value shown in Fig. 17(A) is applied, and Fig.
  • FIG. 18(B) is a conceptual diagram showing the characteristic amount of the indentation when the voltage value shown in Fig. 17(B) is applied.
  • FIG. 19 is a conceptual diagram for explaining the weighted average of the indentation feature amount.
  • FIG. 20 is a diagram showing changes in the indentation feature amount and the average feature amount when the position is changed in the lateral direction.
  • FIG. 21 is a functional block diagram of the pressure sensor 1a.
  • FIG. 22 is a cross-sectional view of the piezoelectric sensor 11 and the touch sensor 31.
  • FIG. 23 is a flowchart of the touch and press confirmation process by the processing unit.
  • FIG. 24 is a functional block diagram of the pressure sensor 1b.
  • FIG. 1 is a functional block diagram of the pressure sensor 1.
  • FIG. 2 is a cross-sectional view of the piezoelectric sensor 11.
  • the pressure sensor 1 includes a piezoelectric sensor 11, a detection unit 12, and a processing unit 13.
  • the piezoelectric sensor 11 includes a holding plate 15, a piezoelectric film 16, a plurality of detection electrodes 17, and a ground electrode 18.
  • the holding plate 15 is formed of a flexible flat plate such as a glass plate.
  • the piezoelectric film 16 has a first main surface 21 and a second main surface 22 opposite to the first main surface 21, and generates an electric charge in response to the torsional deformation of the holding plate 15.
  • the piezoelectric film 16 is formed of, for example, uniaxially stretched L-type polylactic acid (PLLA).
  • the detection electrode 17 is disposed on the first main surface 21 of the piezoelectric film 16, and detects an electric charge generated in the piezoelectric film 16.
  • the ground electrode 18 is disposed on the second main surface 22 of the piezoelectric film 16.
  • the detection unit 12 detects a voltage signal generated in the detection electrode 17 from the electric charge detected by the detection electrode 17.
  • the detection unit 12 has, for example, a charge amplifier circuit, an amplification circuit, and an A/D conversion circuit.
  • the processing unit 13 processes the voltage signal detected by the detection unit 12.
  • the processing unit 13 is composed of a CPU, a memory, etc., stores a program, and processes the voltage signal by executing the program.
  • the processing unit 13 determines a target cell on the holding plate 15 with respect to a position on the holding plate 15, and estimates the indentation position on the holding plate 15 by calculating the difference between the sum of the voltage value of the detection electrode 17 at the top left of the target cell and the voltage value of the detection electrode 17 at the bottom right of the target cell, and the sum of the voltage value of the detection electrode 17 at the bottom left of the target cell and the voltage value of the detection electrode 17 at the top right of the target cell as a feature of the indentation.
  • FIG. 3 is a plan view showing an example of an arrangement of the detection electrodes 17.
  • the detection electrodes 17 are arranged in the vertical and horizontal directions on the piezoelectric film 16.
  • FIG. 4 is a conceptual diagram showing a first cell.
  • the first cell is defined on the main surface of the holding plate, and corresponds to an area that one detection electrode occupies on the main surface of the holding plate when the main surface of the holding plate is viewed in plan.
  • the voltage value of the detection electrode i.e., the voltage value between the detection electrode and the ground electrode, is determined for each first cell.
  • the processing unit calculates the indentation feature f(i,j) as the value of the center position q of the target cell e(i,j) using the following formula:
  • the processing unit may calculate the sum of the voltage value of the bottom left cell and the voltage value of the top right cell minus the sum of the voltage value of the first top left cell and the voltage value of the bottom right cell as the characteristic of the push.
  • the processing unit may also calculate the characteristic of the push as a value at another position within the cell to be evaluated.
  • the cell to be determined may be composed of a plurality of other first cells instead of the 2 x 2 first cells. It is preferable that the cell to be determined is formed into a substantially square or rectangular shape by combining a plurality of first cells. The cell to be determined may be set in advance or changed in real time according to the shape or dimensions of the object to be pressed.
  • FIG. 8 is a conceptual diagram showing a modified example of the target cell.
  • the processing unit determines a target cell consisting of 3 x 3 first cells, and calculates the indentation feature f(i, j) for the target cell e(i, j) using the following formula:
  • the push feature is calculated by the voltage values of the four first cells, regardless of the number of first cells included in the cell to be evaluated. More specifically, when the cell to be evaluated has a square or rectangular shape, the four first cells are the rightmost and uppermost first cell, the rightmost and lowermost first cell, the leftmost and uppermost first cell, and the leftmost and lowermost first cell among the multiple first cells included in the cell to be evaluated. More intuitively, the four first cells can be said to correspond to the first cells at the four corners of the cell to be evaluated. Note that when the push position is at the intersection of the boundaries of the first cells, when the push position is inside the cell to be evaluated, the voltage values of the rightmost and uppermost first cell and the leftmost and lowermost first cell have the same positive and negative signs.
  • FIG. 9 is a conceptual diagram showing the second cell.
  • the second cell is defined on the main surface of the holding plate, has its center position at the center position q of the cell to be evaluated, and has the same dimensions as the first cell.
  • the indentation feature value is determined for each second cell.
  • the position of the second cell is expressed as (i, j).
  • i the horizontal position of the second cell
  • j the vertical position of the second cell.
  • the second cell at position (i, j) is expressed as c2(i, j).
  • the feature of position (i, j), i.e., the feature of the second cell c2(i, j), i.e., the feature of the center position q of the second cell c2(i, j) corresponds to f(i, j).
  • FIG. 10 is a conceptual diagram showing an example of the voltage values of each detection electrode and the cell to be judged.
  • FIG. 11 is a conceptual diagram showing the characteristic amount of the indentation when the voltage values shown in FIG. 10 are applied.
  • FIG. 12 is a conceptual diagram showing another example of the voltage values of each detection electrode and the cell to be judged.
  • FIG. 13 is a conceptual diagram showing the characteristic amount of the indentation when the voltage values shown in FIG. 12 are applied.
  • the feature quantities of the second cells c21, c22, and c23 shown in FIG. 11 correspond to the feature quantities calculated for the target cells e1, e2, and e3 shown in FIG. 10, respectively.
  • the feature quantities of the second cells c21, c22, and c23 shown in FIG. 13 correspond to the feature quantities calculated for the target cells e1, e2, and e3 shown in FIG. 12, respectively.
  • the feature amount calculated for the cell to be judged is approximately 0, as in the feature amounts of the second cells c21 and c22 shown in Figures 11 and 13.
  • the feature amount calculated for the cell to be judged is a significant value, as in the feature amount of the second cell c23 shown in Figures 11 and 13.
  • the feature amount calculated for the cell to be judged is approximately 0.
  • Figure 14(A) is a diagram showing an example of the detection result of the voltage value of the detection electrode when there is one press-in position.
  • Figure 14(B) is a diagram showing the calculation result of the press-in feature when the voltage value shown in Figure 14(A) is given.
  • Figure 14(C) is a diagram showing an example of the detection result of the voltage value of the detection electrode when there are two press-in positions.
  • Figure 14(D) is a diagram showing the calculation result of the press-in feature when the voltage value shown in Figure 14(C) is given.
  • the voltage value of the detection electrode changes over a wide range around the press-in position p, but the press-in feature changes significantly only in the vicinity of the press-in position p.
  • FIG. 15 is a conceptual diagram showing an example of a feature of a push-in.
  • the symbol "- - " represents a negative value with a larger absolute value than the symbol "-”.
  • the processing unit estimates the push-in position from the feature of a push-in as follows. First, connected areas having absolute values of the feature equal to or greater than a predetermined threshold are found. Next, the center position of the second cell having the largest absolute value of the feature within each of the found areas is estimated to be the push-in position. In the example shown in FIG. 15, the center position q1 of the second cell in area a1 and the center position q2 of the second cell in area a2 are estimated to be the push-in positions.
  • the processing unit calculates the characteristic amount of the press from the voltage value of the detection electrode.
  • the characteristic amount of the press reacts strongly only to the vicinity of the press position. This makes it possible to distinguish the press position, which was difficult when the voltage data output from the piezoelectric sensor was used as is.
  • the processing unit may execute the method described with reference to FIG. 16 for the push-in positions estimated by the method described with reference to FIG. 15. Alternatively, the processing unit may execute the method described with reference to FIG. 16 for the center positions of each second cell without executing the method described with reference to FIG. 15.
  • the pressure sensor of this modification differs from the pressure sensor 1 in the following respect: When the absolute value of the press feature amount at the first position is greater than the absolute value of the press feature amount at the second position surrounding the first position, the processing unit calculates a weighted average of the press feature amounts in a range including the first position.
  • the processing unit calculates a weighted average of the feature amounts in a predetermined range centered around the first center position as an average feature amount.
  • the average feature amount is determined for successive positions on the main surface of the holding plate, and has a significant value at the indentation position.
  • the weight is determined experimentally so that the position of the peak of the average feature amount approaches the indentation position.
  • the processing unit estimates the position of the peak of the average feature amount to be the indentation position.
  • FIG. 19 is a conceptual diagram for explaining the weighted average of the indentation feature amount. More specifically, the processing unit calculates the average feature amount g(x, y) of the position (x, y) at each position (x, y) within a predetermined range a whose center position is the center position q of the second cell where the feature amount is at its peak, using the following formula.
  • the range of the second position compared to the first position may be wider than the range consisting of positions adjacent to the first position.
  • the processing unit may calculate the pressing feature as a value of another position within the cell to be evaluated, and take the first position and the second position to be the other position.
  • the center position of the range over which the average feature value is calculated may be outside the position where the feature value peaks.
  • the processing unit checks whether the feature value reaches a peak at the center position of each second cell, and if so, calculates the average feature value.
  • Figure 20 shows the changes in the indentation feature and average feature when the position is changed in the lateral direction.
  • the indentation feature is determined for discrete positions on the main surface of the holding plate.
  • the average indentation feature is determined for continuous positions on the main surface of the holding plate.
  • the processing unit calculates an average indentation feature from the indentation feature.
  • the average indentation feature is determined for successive positions on the main surface of the holding plate, and reacts strongly to an indentation at the indentation position. This improves the resolution of the indentation position, making it possible to estimate the indentation position with higher accuracy.
  • the pressure sensor 1a detects not only pressure on the main surface of the holding plate 15, but also touching of the main surface of the holding plate 15.
  • FIG. 23 is a flowchart of the touch and pressing confirmation process by the processing unit.
  • the processing unit obtains data from the touch sensor and estimates the touch position (s1).
  • the processing unit obtains data from the piezoelectric sensor, i.e., the voltage signal of the detection electrode, and estimates the pressing position (s2).
  • the processing unit may execute step s2 before step s1.
  • the processing unit repeats steps s1 to s5 at regular intervals.
  • the processing unit determines that the pressing is valid, it ultimately estimates the estimated touch position near the pressing position estimated from the piezoelectric sensor data as the pressing position.
  • the processing unit determines that neither a touch nor a pressing has occurred. This prevents erroneous detection of a pressing. Furthermore, this prevents erroneous operation of an electronic device that is equipped with a pressure sensor and uses pressure sensor data, in which the electronic device reacts even when there is no pressing.
  • [Modification 4] 24 is a functional block diagram of the pressure sensor 1b.
  • the pressure sensor 1b differs from the pressure sensor 1a in the following respects. That is, the pressure sensor 1b further includes a determination unit 32.
  • the determination unit 32 determines whether the touch sensor 31 is operating or not using a known technique. When the determination unit 32 determines that the touch sensor 31 is operating, it outputs a signal from the touch sensor 31 to the detection unit 12. On the other hand, when the determination unit 32 determines that the touch sensor 31 is not operating, it outputs a signal indicating that the touch sensor 31 is not operating to the detection unit 12.
  • the processing unit 13 When the touch sensor 31 is operating, the processing unit 13 performs the same touch and press estimation process as in the case of the pressure sensor 1a. On the other hand, when the touch sensor 31 is not operating, the processing unit 13 estimates the touch position and press position using the data from the piezoelectric sensor 11. The processing unit 13 may determine whether a touch or a press has occurred based on, for example, the absolute value of the press feature.
  • capacitive touch sensors do not work well when used with gloved fingers, underwater, or in construction sites where moisture, dust, or other foreign matter is present on the input surface.
  • the pressure sensor can be deformed according to the shape of the object to be attached. This allows the electronic device to be independent of the shape of the object to be attached. Such an electronic device may be attached to a cylinder, a human body, or an object of any other shape.
  • the present invention has the following configuration.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

Ce capteur de pression est pourvu des éléments suivants : une plaque de maintien ; un film piézoélectrique qui a une première surface principale et une seconde surface principale, en face de la première surface principale, et qui génère une charge électrique en réponse à une déformation en torsion de la plaque de maintien ; une pluralité d'électrodes de détection qui sont disposées sur la première surface principale du film piézoélectrique et prévues pour détecter la charge électrique générée dans le film piézoélectrique ; une électrode de masse disposée sur la seconde surface principale du film piézoélectrique ; une unité de détection qui détecte un signal de tension généré au niveau de l'électrode de détection sur la base de la charge électrique détectée par l'électrode de détection ; et une unité de traitement qui traite le signal de tension détecté par l'unité de détection. L'unité de traitement estime une position de pression sur la plaque de maintien en définissant une cellule cible de détermination sur la plaque de maintien par rapport à une position sur la plaque de maintien, et en calculant, en tant que quantité de caractéristique de pression, une différence entre : la somme de la valeur de tension d'une électrode de détection supérieure-gauche de la cellule cible de détermination et de la valeur de tension d'une électrode de détection inférieure-droite de la cellule cible de détermination ; et la somme de la valeur de tension d'une électrode de détection inférieure-gauche de la cellule cible de détermination et de la valeur de tension d'une électrode de détection supérieure-droite de la cellule cible de détermination.
PCT/JP2024/043400 2023-12-26 2024-12-09 Capteur de pression, procédé d'estimation de position de pression et programme d'estimation de position de pression Pending WO2025142429A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2023218794 2023-12-26
JP2023-218794 2023-12-26

Publications (1)

Publication Number Publication Date
WO2025142429A1 true WO2025142429A1 (fr) 2025-07-03

Family

ID=96217595

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2024/043400 Pending WO2025142429A1 (fr) 2023-12-26 2024-12-09 Capteur de pression, procédé d'estimation de position de pression et programme d'estimation de position de pression

Country Status (1)

Country Link
WO (1) WO2025142429A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010143528A1 (fr) * 2009-06-11 2010-12-16 株式会社村田製作所 Écran tactile et dispositif d'entrée de type tactile
JP2013541088A (ja) * 2010-09-15 2013-11-07 アドヴァンスト・シリコン・ソシエテ・アノニム マルチタッチ装置から任意の数のタッチを検出する方法
WO2022009747A1 (fr) * 2020-07-10 2022-01-13 株式会社村田製作所 Dispositif de détection de force de pression

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010143528A1 (fr) * 2009-06-11 2010-12-16 株式会社村田製作所 Écran tactile et dispositif d'entrée de type tactile
JP2013541088A (ja) * 2010-09-15 2013-11-07 アドヴァンスト・シリコン・ソシエテ・アノニム マルチタッチ装置から任意の数のタッチを検出する方法
WO2022009747A1 (fr) * 2020-07-10 2022-01-13 株式会社村田製作所 Dispositif de détection de force de pression

Similar Documents

Publication Publication Date Title
US8904885B2 (en) Detection device, electronic device, and robot
US10289210B1 (en) Enabling touch on a tactile keyboard
CN102539022B (zh) 检测装置、电子设备以及机械手
CN111630480B (zh) 触摸面板装置
CN102564649B (zh) 检测装置、电子设备以及机械手
CN103518176A (zh) 输入装置及使用所述输入装置的多个点的载荷检测方法
CN106489116A (zh) 用于电子设备的多触摸输入设备的力的分配
EP2749996B1 (fr) Dispositif électronique et procédé pour l'amélioration de la précision de la détermination de la localisation d'actionnement d'utilisateur sur un écran tactile
EP3327559A1 (fr) Procédé de correction de sensibilité de pression tactile et support d'enregistrement lisible par ordinateur
JP2010113445A (ja) タッチパネルおよび操作検出方法
KR20120139518A (ko) 정전 용량 및 압력 센싱이 가능한 하이브리드 터치 패널
JP2022083296A (ja) タッチパネルシステム、表示装置及びタッチパネルシステムの制御方法
US10969898B2 (en) Method for determining a force of a touch object on a touch device and for determining its related touch event
CN107066138B (zh) 触控系统中防止误触的讯号侦测方法
JP2013152129A (ja) 力検出器、圧力検出装置、電子機器及びロボット
JP2013096884A (ja) 検出装置、電子機器、及びロボット
JP2022166512A (ja) タッチパネルシステム及び表示装置
US20100128005A1 (en) Touch panel by optics unit sensor
WO2025142429A1 (fr) Capteur de pression, procédé d'estimation de position de pression et programme d'estimation de position de pression
CN116048308A (zh) 一种触控识别方法及装置、电子设备、存储介质
JP2012073051A (ja) 検出装置、電子機器、及びロボット
KR101093615B1 (ko) 3차원 감지 패널
US12314518B2 (en) Position detection device, input device, and position detection method
JP2014235478A (ja) タッチ入力装置、タッチ入力装置入力検出方法、およびコンピュータプログラム
JP2012026905A (ja) 検出装置、電子機器及びロボット

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24912318

Country of ref document: EP

Kind code of ref document: A1