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WO2018179481A1 - Dispositif commutateur et machine électronique - Google Patents

Dispositif commutateur et machine électronique Download PDF

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Publication number
WO2018179481A1
WO2018179481A1 PCT/JP2017/030652 JP2017030652W WO2018179481A1 WO 2018179481 A1 WO2018179481 A1 WO 2018179481A1 JP 2017030652 W JP2017030652 W JP 2017030652W WO 2018179481 A1 WO2018179481 A1 WO 2018179481A1
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WO
WIPO (PCT)
Prior art keywords
switch
electrode
electrodes
region
capacitance
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.)
Ceased
Application number
PCT/JP2017/030652
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English (en)
Japanese (ja)
Inventor
雅巳 山本
就正 所
祥平 河越
弘二郎 川崎
忠義 奥田
羊佑 塩田
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.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management 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
Priority claimed from JP2017146952A external-priority patent/JP6857824B2/ja
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Priority to EP17903711.4A priority Critical patent/EP3605577B1/fr
Publication of WO2018179481A1 publication Critical patent/WO2018179481A1/fr
Priority to US16/523,845 priority patent/US10868533B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/81—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by electrical connections to external devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Definitions

  • the present invention relates to a switch device that does not have a mechanical drive mechanism and an electronic apparatus that includes such a switch device.
  • Some switch devices do not have a mechanical drive mechanism, such as switch devices including touch sensors.
  • a switch device that does not have a mechanical drive mechanism there is an invention of Patent Document 1.
  • the switch device of Patent Document 1 includes a metal plate and a conductor pad facing each other, and detects a user input by detecting a change in capacitance between the metal plate and the conductor pad when the user presses the metal plate. To detect.
  • a switch device that does not have a mechanical drive mechanism, when a single metal plate is shared to form a plurality of switches, if a sufficient distance is not secured between the switches, it is erroneously detected which switch the user has operated. There are things to do. Therefore, it is required to detect user input with higher accuracy than before.
  • An object of the present invention is to provide a switch device that does not have a mechanical drive mechanism and can detect user input with higher accuracy than before.
  • a switch device according to an aspect of the present invention is provided.
  • a first electrode made of a metal plate;
  • a switch device comprising a detection circuit for detecting each capacitance between the first electrode and the plurality of second electrodes,
  • the plurality of second electrodes and the regions of the first electrode facing the second electrodes include the regions of the first electrode from the first electrode to the second electrodes.
  • a plurality of switches having the respective capacities that change when pressed toward the The detection circuit includes: Calculate the amount of change in capacitance indicating the change from the reference value of the capacitance of each switch, Calculate the maximum value and the sum of the capacitance changes of each switch, A state in which the amount of change in capacity of at least one of the plurality of switches exceeds a first threshold, and the ratio of the maximum value to the sum is equal to or greater than a second threshold. When continuing over the first period, it is determined that the switch having the maximum value of the capacity change amount is in the pressed state.
  • the capacitance change amount of at least one switch exceeds the first threshold value, and the ratio of the maximum value to the sum is equal to or greater than the second threshold value.
  • FIG. 1 is a perspective view illustrating an appearance of an electronic apparatus 1 according to the first embodiment.
  • FIG. 2 is a block diagram showing an internal configuration of the electronic apparatus 1 of FIG. 3 is an exploded perspective view showing components of the switch array 16 of FIG.
  • FIG. 4 is a cross-sectional view showing a part of a cross section of the electronic apparatus 1 taken along the line A-A ′ of FIG. 1.
  • FIG. 5 is a cross-sectional view showing a part of a cross section of the electronic apparatus 1 taken along the line B-B ′ of FIG. 1.
  • FIG. 6 is a top view showing the configuration of the fixing member 34 of FIG.
  • FIG. 7 is a schematic diagram showing a state of the switch array 16 when the switch SW3 of FIG. 1 is pressed.
  • FIG. 1 is a perspective view illustrating an appearance of an electronic apparatus 1 according to the first embodiment.
  • FIG. 2 is a block diagram showing an internal configuration of the electronic apparatus 1 of FIG. 3 is an exploded perspective view showing components of the switch
  • FIG. 8 is a flowchart showing a switch control process executed by the press detection circuit 21 of FIG.
  • FIG. 9 is a flowchart showing a subroutine of the touch detection process (step S8) of FIG.
  • FIG. 10A is a flowchart showing a first part of the subroutine of the release detection process (step S9) of FIG.
  • FIG. 10B is a flowchart showing a second part of the subroutine of the release detection process (step S9) of FIG.
  • FIG. 11 is a graph showing the change over time of the change amount ⁇ C in capacitance of the switches SW1 and SW2 before correction.
  • FIG. 12 is a graph showing the time change of the capacitance change amount ⁇ C of the switches SW1 and SW2 corrected by the correction coefficients HOS1 and HOS2, respectively.
  • FIG. 13 is a graph showing the change over time of the change amount ⁇ C in capacitance for explaining the touch determination in step S13 in FIG. 9 and the release determination in step S23 in FIG. 10A.
  • FIG. 14 is an exploded perspective view showing components of the switch array of the electronic device according to the second embodiment.
  • FIG. 15 is a cross-sectional view showing a part of a cross section of an electronic apparatus according to the second embodiment.
  • FIG. 16 is a bottom view showing a part of the top plate 12A of FIG. 17 is a bottom view showing a state in which the dielectric member 31A of FIG. 14 is arranged on the top plate 12A of FIG. FIG.
  • FIG. 18 is a flowchart illustrating a switch control process executed by the press detection circuit 21 of the electronic device 1 according to the third embodiment.
  • FIG. 19 is a flowchart showing a subroutine of the touch detection process (step S8A) of FIG.
  • FIG. 20 is a flowchart showing a subroutine of the release detection process (step S9A) of FIG.
  • FIG. 1 is a perspective view illustrating an appearance of an electronic apparatus 1 according to the first embodiment.
  • the electronic device 1 is, for example, a music playback device that includes a compact disc (CD) drive and a speaker.
  • CD compact disc
  • the electronic device 1 includes a lower housing 11, a top plate 12, a lid 13, a power switch 14, a volume switch 15, and a switch array 16.
  • the lower housing 11 and the top plate 12 constitute a housing of the electronic device 1.
  • the top plate 12 is made of metal (for example, aluminum).
  • the lid 13 covers an opening provided in the top plate 12 so as to be openable and closable, and the CD is inserted into and removed from the CD drive inside the electronic apparatus 1 through the opening.
  • the power switch 14 receives a user input for turning on / off the power of the electronic device 1.
  • the volume switch 15 accepts a user input for increasing or decreasing the volume of sound reproduced by the electronic device 1.
  • the switch array 16 accepts user input for operating other functions of the electronic device 1 such as CD playback, stop, pause, fast forward, and fast reverse.
  • the switch array 16 includes a plurality of switches SW1 to SW6 that do not have a mechanical drive mechanism.
  • FIG. 2 is a block diagram showing an internal configuration of the electronic device 1 of FIG.
  • the electronic device 1 includes a press detection circuit 21, a register 21a, a control circuit 22, a CD drive 23, a Bluetooth (registered trademark, the same applies hereinafter) communication circuit 24, an amplification as shown in FIG. A circuit 25 and a speaker 26 are provided.
  • the top 12 is formed in a plate shape at the position of the switch array 16.
  • the top plate 12 is grounded.
  • the switch array 16 includes a plurality of electrodes E1 to E6 that are capacitively coupled to the top plate 12 made of a metal plate.
  • the plurality of electrodes E1 to E6 are linearly aligned with a predetermined interval.
  • the plurality of electrodes E1 to E6 and the respective regions of the top plate 12 facing the respective electrodes E1 to E6 are changed by pressing the respective regions of the top plate 12 from the top plate 12 toward the respective electrodes E1 to E6.
  • a plurality of switches SW1 to SW6 having respective capacitances are configured.
  • the capacities of the switches SW1 to SW6 are shown as virtual capacities C1 to C6.
  • the electrodes E1 to E6 are connected to the press detection circuit 21, respectively.
  • the press detection circuit 21 detects the capacitances C1 to C6 between the top 12 and the plurality of electrodes E1 to E6, and the switches SW1 to SW6 are pressed (touched) based on the capacitances C1 to C6. Or whether it is in a non-pressed state (release).
  • the register 21a stores a threshold value, a correction coefficient, a reference level of capacity, and the like used by the press detection circuit 21 to determine whether each of the switches SW1 to SW6 is pressed or not pressed. Store in advance.
  • the control circuit 22 controls the overall operation of the electronic device 1 according to the pressed state and the non-pressed state of the switches SW1 to SW6 of the power switch 14, the volume switch 15, and the switch array 16.
  • the CD drive 23 reproduces the CD under the control of the control circuit 22 and sends the audio signal recorded on the CD to the amplifier circuit 25.
  • the Bluetooth communication circuit 24 communicates with a playback device around the electronic device 1 under the control of the control circuit 22, and sends an audio signal received from the playback device to the amplifier circuit 25.
  • the amplifier circuit 25 amplifies the audio signal received from the CD drive 23 or the Bluetooth communication circuit 24 and outputs it from the speaker 26 under the control of the control circuit 22.
  • the speaker 26 may be a speaker built in the electronic device 1, an external speaker, or a combination of a built-in speaker and an external speaker.
  • switches SW1 to SW6 of the switch array 16 and the press detection circuit 21 are also referred to as “switch devices”, and the features of the switch devices will be described.
  • the control circuit 22, the CD drive 23, the Bluetooth communication circuit 24, and the amplifier circuit 25 are electronic circuits that operate according to the pressed state and the non-pressed state of the switches SW1 to SW6 of the switch device.
  • FIG. 3 is an exploded perspective view showing components of the switch array 16 of FIG.
  • FIG. 4 is a cross-sectional view showing a part of a cross section of the electronic apparatus 1 taken along the line A-A ′ of FIG. 1.
  • FIG. 5 is a cross-sectional view showing a part of a cross section of the electronic apparatus 1 taken along the line B-B ′ of FIG. 1.
  • the switch array 16 includes dielectric members 31 and 32, a printed wiring board 33, and a fixing member 34 in addition to the top plate 12.
  • the printed wiring board 33 has a first surface (upper surface in FIGS. 3 to 5) and a second surface (lower surface in FIGS. 3 to 5), and faces the top plate 12 on the first surface.
  • the electrodes E1 to E6 are formed on one surface.
  • the dielectric members 31 and 32 are provided between the top plate 12 and the printed wiring board 33, and are formed so as not to contact each region of the top plate 12 facing the electrodes E1 to E6.
  • the dielectric member 32 may be formed so as to cover the first surface of the printed wiring board 33, and the dielectric member 31 may be provided between the top plate 12 and the dielectric member 32.
  • the dielectric member 31 does not contact each region of the top plate 12 facing each of the electrodes E1 to E6, and contacts the top plate 12 around these regions (that is, the switches SW1 to SW1). Formed in one ring surrounding SW6).
  • the dielectric members 31 and 32 are made of, for example, polyethylene terephthalate, but may be any other material having a desired dielectric constant.
  • the fixing member 34 fixes the printed wiring board 33 and the dielectric members 31 and 32 to the top plate 12.
  • the fixing member 34 has a plurality of protrusions 34a formed so as to press the positions facing the outer circumferences of the electrodes E1 to E6 on the second surface of the printed wiring board 33.
  • the fixing member 34 is fixed to the top plate 12 by a plurality of screws 35, for example.
  • FIG. 6 is a top view showing the configuration of the fixing member 34 of FIG.
  • the fixing member 34 When the fixing member 34 is fixed to the top plate 12 with a plurality of screws 35, the position of the screws 35 is determined so as not to hinder the deformation of the top plate 12 when the switches SW1 to SW6 are pressed. Therefore, for example, as shown in FIG. 6, a screw hole 34 b is provided at a position equidistant from two adjacent protrusions of the plurality of protrusions 34 a. Thereby, the fixing member 34 is screwed to the top plate 12 at a position equidistant from two adjacent electrodes among the plurality of electrodes E1 to E6. As long as the deformation of the top plate 12 when the switches SW1 to SW6 are pressed can be prevented from being hindered, the fixing member 34 may be fixed to the top plate 12 by any other method, not limited to that shown in FIG. .
  • FIG. 7 is a schematic diagram showing the state of the switch array 16 when the switch SW3 in FIG. 1 is pressed.
  • the top plate 12 and the electrodes E1 to E6 have a distance h
  • the switch SW3 has a capacitor C3.
  • the region of the top plate 12 facing the electrode E3 is pressed by a distance ⁇ h from the top plate 12 toward the electrode E3 (that is, when the switch SW3 is pressed by the finger 41)
  • the capacitance of the switch SW3 changes to capacitance C3 + ⁇ C3.
  • the press detection circuit 21 determines whether the switch SW3 is in the pressed state or in the non-pressed state by detecting the change amount ⁇ C3 of the capacitance of the switch SW3.
  • FIG. 8 is a flowchart showing a switch control process executed by the press detection circuit 21 of FIG.
  • capacitor change amount the change amount of the capacitance of each switch SWx and the correction change amount.
  • step S1 the press detection circuit 21 reads out a plurality of threshold values and a plurality of correction coefficients stored in advance in the register 21a, and performs various initial settings. For example, the following thresholds and correction factors are used.
  • TH_EDGE A threshold value of the amount of change in capacity for determining that a non-pressed switch has changed to a pressed state. For example, 30 is set when the amount of change in capacitance is represented by a digital value of 0 to 500.
  • TH_FALL A threshold value of the amount of change in capacity for determining that the pressed switch has changed to the non-pressed state. For example, 30 is set when the amount of change in capacitance is represented by a digital value of 0 to 500.
  • TH_LOW a negative capacitance change threshold for determining that the capacitance of a certain switch SWx is in an abnormal state. For example, when the negative capacitance change amount is expressed by a digital value of ⁇ 500 to 0, it is set to ⁇ 30.
  • a threshold value (calibration determination time) for a duration time in which the capacitance change amount is below the threshold value TH_LOW for determining that the capacitance of a certain switch SWx is in an abnormal state. For example, it is set to 3 seconds.
  • SW_DET_COUNT A threshold value for the duration of the state in which the amount of change in capacity exceeds the threshold value TH_EDGE for determining that the non-pressed switch has changed to the pressed state. Further, a threshold value of a duration time in which the amount of change in capacity is below the threshold value TH_FALL for determining that the pressed switch has changed to the non-pressed state. For example, the number of repetitions of steps S2 to S9 in FIG.
  • Lt a threshold value for determining that the switch SWt having a long press operation has been long pressed.
  • COMP_LEVELx (x 1 to 6): A correction coefficient that is multiplied by the sum SUM_HOS_ ⁇ C when comparing the maximum value MAX_HOS_ ⁇ C of the capacitance change amount with the sum SUM_HOS_ ⁇ C and when the capacitance change amount of the switch SWx is the maximum value MAX_HOS_ ⁇ C.
  • the threshold value compared with the ratio of the maximum value MAX_HOS_ ⁇ C to the sum SUM_HOS_ ⁇ C.
  • the correction coefficient COMP_LEVELX is set independently of the switch SWx depending on which switch SWx has the maximum value MAX_HOS_ ⁇ C.
  • the correction coefficients HOSx and COMP_LEVELX are determined when adjusting the sensitivity of each switch SWx to coincide with each other in the manufacturing process, and are set in the register 21a.
  • the register 21a further stores in advance the reference level SLx of the capacitance of each switch SWx.
  • step S2 the press detection circuit 21 determines whether or not a predetermined capacity reading cycle has elapsed. If YES, the process proceeds to step S3. If NO, step S2 is repeated. The pressing detection circuit 21 repeats the following steps S2 to S9 for each reading cycle, and increments the count value of the number of repetitions.
  • step S3 the press detection circuit 21 detects the capacitance Cx of each switch SWx.
  • step S4 the press detection circuit 21 reads the reference level SLx of the capacitance of each switch SWx from the register 21a, and calculates the difference of the capacitance Cx with respect to the reference level SLx as the change amount ⁇ Cx of the capacitance.
  • the sensitivity of each switch SWx is adjusted by multiplying the amount of change ⁇ C of the capacitance of each switch SWx by a correction coefficient HOSx set independently for each switch SWx.
  • FIG. 11 is a graph showing the change over time of the change amount ⁇ C in capacitance of the switches SW1 and SW2 before correction.
  • FIG. 12 is a graph showing the time change of the capacitance change amount ⁇ C of the switches SW1 and SW2 corrected by the correction coefficients HOS1 and HOS2, respectively.
  • FIG. 11 shows a case where the switches SW1 and SW2 are pressed with the same force. According to FIG. 11, the peak value of the change amount ⁇ C of the capacitance of each switch SW1, SW2 has a difference of about 1.8 times.
  • the correction coefficient HOS1 1.0 is multiplied by the capacitance change amount ⁇ C of the switch SW1
  • the correction coefficient HOS2 1.8 is multiplied by the capacitance change amount ⁇ C of the switch SW2.
  • the peak values of the capacitance change amounts ⁇ C of the switches SW1 and SW2 are substantially equal.
  • step S6 the press detection circuit 21 calculates the maximum value MAX_HOS_ ⁇ C and the sum SUM_HOS_ ⁇ C of the correction change amount HOS_ ⁇ Cx.
  • step S7 the press detection circuit 21 determines whether any of the switches SWx is in the pressed state or whether each switch SWx is in the non-pressed state. If YES, The process proceeds to step S8, and if NO, the process proceeds to step S9.
  • step S8 the press detection circuit 21 executes a touch detection process for determining whether or not the switch SWx determined to be in the non-pressed state is in the pressed state.
  • step S9 the press detection circuit 21 performs a release detection process for determining whether or not the switch SWx determined to be in the pressed state is in the non-pressed state.
  • FIG. 9 is a flowchart showing a subroutine of the touch detection process (step S8) of FIG.
  • step S11 the press detection circuit 21 determines whether or not one or more correction change amount HOS_ ⁇ Cx is below the threshold value TH_LOW. If YES, the process proceeds to step S16. If NO, the process proceeds to step S12. . Even if the conditions of Steps S12 to S14 for determining that any one of the switches SWx is pressed are satisfied, the condition is determined to be abnormal unless the condition of Step S11 is resolved, and the process proceeds to Step S16. . By step S11, the influence of the distortion of the top plate 12 caused by pressing the top plate 12 outside the switch array 16 can be reduced.
  • step S12 the press detection circuit 21 determines whether or not one or more correction change amount HOS_ ⁇ Cx exceeds the threshold value TH_EDGE. If YES, the process proceeds to step S13, and if NO, the step of FIG. Return to S2. In step S13, the press detection circuit 21 determines whether or not the maximum value MAX_HOS_ ⁇ C and the total sum SUM_HOS_ ⁇ C of the capacitance change amount satisfy the following expression. MAX_HOS_ ⁇ C ⁇ SUM_HOS_ ⁇ C ⁇ COMP_LEVELx
  • step S13 is YES
  • step S14 the process proceeds to step S14, and when NO, the process proceeds to step S17.
  • step S14 the press detection circuit 21 determines whether the same switch SWx has the maximum value MAX_HOS_ ⁇ C and satisfies the condition of step S13 over SW_DET_COUNT iterations. By step S14, it is possible to detect only a state in which only one switch SWx can be regarded as being pressed.
  • step S14 is YES
  • the process proceeds to step S15, and when NO, the process returns to step S2 in FIG.
  • step S15 the press detection circuit 21 determines that the switch SWx having the maximum value MAX_HOS_ ⁇ C is in the pressed state. Thereafter, the process returns to step S2 of FIG.
  • step S16 the press detection circuit 21 determines whether or not the state satisfying the condition in step S11 continues for the time ABt. If YES, the process proceeds to step S18. If NO, the process returns to step S2 in FIG. .
  • step S16 it is considered that the calibration is not always effective, and forced calibration is performed in step S18. Thereby, the influence of the distortion of the top plate 12 that occurs when the temperature is lowered, when an object is placed on the top plate 12, or when the lid 13 is opened or closed can be reduced.
  • step S17 the press detection circuit 21 determines whether or not the state satisfying the condition of step S12 and not satisfying the condition of step S13 continues for the time ABt. If YES, the process proceeds to step S18. In this case, the process returns to step S2 in FIG.
  • step S17 is YES, it is regarded as an abnormal state where calibration is not always effective, and forced calibration is performed at step S18. Thereby, the influence of the distortion of the top plate 12 that occurs when the temperature rises or when the lid 13 is opened or closed can be reduced.
  • step S18 the pressing detection circuit 21 determines that the state is abnormal and performs a forced calibration (calibration), and sets the current capacitance Cx as the reference level SLx in the register 21a. Thereafter, the process returns to step S2 of FIG.
  • switches SW1 to SW6 that have a long press operation and switches that do not have a long press operation (only have a short press operation).
  • the long press operation means that the electronic device 1 continues to execute the corresponding operation for a time during which it is determined that a certain switch SWx is in the pressed state.
  • switches SW1 to SW6 are assigned to operations such as CD playback, stop, pause, fast forward, and fast reverse, fast forward and fast reverse are long press operations, and playback, stop, and pause are short press operations. It is.
  • the press detection circuit 21 determines that the switch SWx is in the pressed state and has been pressed for a long time when it is determined that the pressed state has changed from the pressed state to the non-pressed state. Sometimes the corresponding action is executed. For the switch SWx having only a short press operation, the press detection circuit 21 causes the corresponding operation to be executed when it is determined that the switch has shifted from the non-pressed state to the pressed state.
  • 10A and 10B are flowcharts showing a subroutine of the release detection process (step S9) of FIG.
  • step S21 the press detection circuit 21 determines whether or not one or more correction change amount HOS_ ⁇ Cx is below the threshold value TH_LOW. If YES, the process proceeds to step S28. If NO, the process proceeds to step S22. .
  • step S22 in FIG. 10A the press detection circuit 21 determines whether or not the switch SWx in the pressed state has a long press operation. If YES, the process proceeds to step S23. If NO, step S33 in FIG. 10B is performed. Proceed to In step S23, the pressing detection circuit 21 determines whether or not the switch SWx in the pressed state satisfies HOS_ ⁇ Cx ⁇ TH_FALL. If YES, the process proceeds to step S24. If NO, the process proceeds to step S31. In step S24, the press detection circuit 21 determines whether or not the state satisfying the condition in step S23 continues for SW_DET_COUNT iterations. If YES, the process proceeds to step S25. If NO, step S2 in FIG.
  • step S25 the press detection circuit 21 determines whether or not the switch press time is less than the time Lt. If YES, the process proceeds to step S26, and if NO, the process proceeds to step S27.
  • step S26 the pressing detection circuit 21 determines that the switch SWx in the pressed state has been pressed for a short time, and executes a corresponding operation.
  • step S27 the press detection circuit 21 determines that each switch SWx is in a non-pressed state. Thereafter, the process returns to step S2 of FIG.
  • step S33 of FIG. 10B the press detection circuit 21 determines whether or not the operation corresponding to the switch SWx in the pressed state has been executed. If YES, the process proceeds to step S35. If NO, step S34 is performed. Proceed to In step S34, the press detection circuit 21 determines that the switch SWx in the pressed state has been pressed for a short time, and executes a corresponding operation. According to steps S33 to S34, the operation corresponding to the switch SWx is executed only when the release detection process is executed for the first time after the switch SWx having only a short press operation is in the pressed state.
  • step S35 the press detection circuit 21 determines whether or not the switch SWx in the pressed state satisfies HOS_ ⁇ Cx ⁇ TH_FALL. If YES, the process proceeds to step S36. If NO, the process returns to step S2 in FIG. .
  • step S36 the press detection circuit 21 determines whether or not the state satisfying the condition in step S35 continues over SW_DET_COUNT iterations. If YES, the process proceeds to step S37. If NO, step S2 in FIG. Return to. When both steps S35 to S36 are YES, it can be seen that the user's finger has left the switch SWx. In step S37, the press detection circuit 21 determines that each switch SWx is in a non-pressed state. Thereafter, the process returns to step S2 of FIG.
  • step S28 of FIG. 10A the press detection circuit 21 determines whether or not the state satisfying the condition of step S21 continues for the time ABt. If YES, the process proceeds to step S29. If NO, the step of FIG. Return to S2. In step S29, the press detection circuit 21 determines that the state is abnormal and performs forced calibration, and sets the current capacitance Cx as the reference level SLx in the register 21a. In step S30, the pressing detection circuit 21 determines that each switch SWx is in a non-pressed state. Thereafter, the process returns to step S2 of FIG.
  • step S31 the press detection circuit 21 determines whether or not Lt seconds have elapsed since the press, and proceeds to step S32 if YES, or returns to step S2 in FIG. 8 if NO.
  • step S32 the press detection circuit 21 determines that the switch SWx in the pressed state has been pressed for a long time, executes the corresponding operation, and continues the pressed state. Thereafter, the process returns to step S2 of FIG.
  • FIG. 13 is a graph showing the change over time of the change amount ⁇ C in capacitance for explaining the touch determination in step S13 in FIG. 9 and the release determination in step S23 in FIG. 10A. It is assumed that the switch SW2 is pressed and the correction change amount HOS_ ⁇ C2 is the maximum value MAX_HOS_ ⁇ C. In the touch determination, when the maximum value MAX_HOS_ ⁇ C exceeds the threshold value TH_EDGE and SUM_HOS_ ⁇ C ⁇ COMP_LEVEL2, and this state continues for SW_DET_COUNT iterations, it is determined that the switch SW2 is in the pressed state.
  • the top plate 12 constituting the switch device may be a part of the casing of the electronic device 1 as shown in FIG. 1 or may be all or may be provided as another component.
  • the threshold value TH_EDGE used in step S12 in FIG. 9 and the threshold value TH_FALL used in step S22 in FIG. 10A may be set independently of each other. Also, the threshold value SW_DET_COUNT used in step S14 in FIG. 9 and step S22 in FIG. 10A may also be set independently of each other.
  • the correction coefficient HOSx is not used, and the change amount ⁇ Cx before correction is replaced with the correction change amount of each switch SWx in the processes of FIGS. 8 to 10B. You may use as it is.
  • a determination method different from that used in the processing of FIGS. 8 to 10B may be used. For example, a state in which the capacitance change amount of a certain switch exceeds a predetermined threshold value and is more than twice the maximum value of the capacitance change amounts of other switches over a predetermined time length. When it continues, it is determined that the switch has been pressed.
  • the capacitance change amount of each switch may be an uncorrected capacitance change amount or a corrected capacitance change amount.
  • the judgment and timing of the long press and the short press are determined according to the press time of the switch SWx and the product specification.
  • the top 12 is also referred to as a “first electrode”
  • the electrodes E1 to E6 are also referred to as “second electrodes”
  • the pressing detection circuit is also referred to as a “detection circuit”.
  • the change amount and the correction change amount are also referred to as “capacity change amount”.
  • the threshold value TH_EDGE is also referred to as a “first threshold value”
  • the correction coefficient COMP_LEVELx is also referred to as a “second threshold value”
  • the threshold value TH_FALL is also referred to as a “third threshold value”.
  • the threshold value TH_LOW is also referred to as a “fourth threshold value”.
  • a time period that spans SW_DET_COUNT iterations is also referred to as a “first period” or a “second period”, and a time period of the threshold value ABt is a “third period” or a “fourth period”. Also called.
  • the switch device and the electronic device according to the first embodiment have the following configuration.
  • the switch device includes a top plate 12 made of a metal plate, a plurality of electrodes E1 to E6 that are capacitively coupled to face the top plate 12, and a top plate 12 and a plurality of electrodes E1 to E1. And a press detection circuit 21 that detects the respective capacitors C1 to C6 with respect to E6.
  • the plurality of electrodes E1 to E6 and the respective regions of the top plate 12 facing the respective electrodes E1 to E6 are changed by pressing the respective regions of the top plate 12 from the top plate 12 toward the respective electrodes E1 to E6.
  • a plurality of switches SW1 to SW6 having respective capacitances are configured.
  • the press detection circuit 21 calculates a capacitance change amount indicating a change from the reference value of the capacitance of each of the switches SW1 to SW6.
  • the press detection circuit 21 calculates the maximum value and the sum of the capacitance change amounts of the switches SW1 to SW6.
  • the pressing detection circuit 21 has a maximum threshold ratio with respect to the sum as a second threshold.
  • the state in which the capacitance change amount of at least one switch exceeds the first threshold and the ratio of the maximum value to the total is equal to or greater than the second threshold continues for the first period. Therefore, it is possible to detect the pressed state of the switch with higher accuracy than in the past.
  • the press detection circuit 21 is in a state where the capacitance change amount of the switches SW1 to SW6 determined to be in the pressed state is equal to or less than the third threshold value. When continuing for a period, it may be determined that the switches SW1 to SW6 determined to be in the pressed state are in the non-pressed state.
  • the state in which the capacitance change amount of the switches SW1 to SW6 determined to be in the pressed state is not more than the third threshold value continues for the second period.
  • the state can be detected with higher accuracy than in the past.
  • the press detection circuit 21 is in a state where the capacitance change amount of at least one of the plurality of switches SW1 to SW6 is less than the negative fourth threshold value. May be calibrated over a third period, the reference value of the capacitance of at least one of the switches SW1-SW6 may be calibrated.
  • the pressing detection circuit 21 is configured such that when the capacitance change amount of at least one switch SW among the plurality of switches SW1 to SW6 exceeds the first threshold value, In addition, when the state in which the ratio of the maximum value to the sum is less than the second threshold value continues for the fourth period, the reference value of the capacitance of at least one of the switches SW1 to SW6 may be calibrated.
  • the second threshold value is determined based on which of the plurality of switches SW1 to SW6 has the maximum capacitance change amount. It may be set independently for SW6.
  • the second threshold value is set independently for the plurality of switches SW1 to SW6, user input can be detected with higher accuracy.
  • the press detection circuit 21 sets the correction coefficient set independently for each switch SW1 to SW6 to the difference between the capacitance of each switch SW1 to SW6 and the reference value. By multiplying, the capacitance change amounts of the switches SW1 to SW6 are calculated.
  • the top plate 12 may be grounded.
  • the plurality of electrodes E1 to E6 may be aligned in a straight line with a predetermined interval therebetween.
  • the switch device may include the dielectric members 31 and 32, the printed wiring board 33, and the fixing member 34.
  • the printed wiring board 33 has a first surface and a second surface, and faces the top plate 12 on the first surface, and the electrodes E1 to E6 are formed on the first surface.
  • the dielectric members 31 and 32 are provided between the top plate 12 and the printed wiring board 33, and are formed so as not to contact each region of the top plate 12 facing the electrodes E1 to E6.
  • the fixing member 34 fixes the printed wiring board 33 and the dielectric members 31 and 32 to the top plate 12.
  • a hollow region is provided between the top plate 12 and the dielectric member 32, so that each region of the top plate 12 that faces each of the electrodes E1 to E6 moves from the top plate 12 to each of the electrodes E1 to E6. Easy to press.
  • the fixing member 34 has a plurality of protrusions formed so as to press the positions facing the outer circumferences of the electrodes E1 to E6 on the second surface of the printed wiring board 33. 34a may be included.
  • the fixing member 34 is screwed to the top plate 12 at a position equidistant from two adjacent electrodes among the plurality of electrodes E1 to E6. Also good.
  • the switch device includes a top plate 12 made of a metal plate, a plurality of electrodes E1 to E6 that are capacitively coupled to face the top plate 12, and a top plate 12 and a plurality of electrodes E1 to E1. And a press detection circuit 21 that detects the respective capacitors C1 to C6 with respect to E6.
  • the switch device further includes dielectric members 31 and 32, a printed wiring board 33, and a fixing member 34.
  • the printed wiring board 33 has a first surface and a second surface, and faces the top plate 12 on the first surface, and the electrodes E1 to E6 are formed on the first surface.
  • the dielectric members 31 and 32 are provided between the top plate 12 and the printed wiring board 33, and are formed so as not to contact each region of the top plate 12 facing the electrodes E1 to E6.
  • the fixing member 34 fixes the printed wiring board 33 and the dielectric members 31 and 32 to the top plate 12.
  • the plurality of electrodes E1 to E6 and the respective regions of the top plate 12 facing the respective electrodes E1 to E6 are changed by pressing the respective regions of the top plate 12 from the top plate 12 toward the respective electrodes E1 to E6.
  • a plurality of switches SW1 to SW6 having respective capacitances are configured.
  • each region of the top 12 facing the electrodes E1 to E6 can be easily pressed from the top 12 toward the electrodes E1 to E6, so that the pressed state of the switch can be detected with higher accuracy than in the past. Can do.
  • the magic switch device the electronic circuit that operates according to the pressed state and the non-pressed state of the switches SW1 to SW6 of the switch device, and the top plate 12 of the switch device are provided.
  • a housing included in at least a part.
  • user input can be detected with higher accuracy than in the past.
  • the switch device it is possible to make it difficult to break down by not having a mechanical drive mechanism.
  • an electronic apparatus having an appearance without unevenness due to the switch can be realized.
  • the sensitivity differs for each switch SWx.
  • a difference in the amount of deflection of the top plate may occur due to a structural difference in the top plate in the vicinity of each switch SWx.
  • a description will be given of a structure of a switch device that can reduce the difference in sensitivity of each switch SWx even if there is a difference in the structure of the top plate.
  • FIG. 14 is an exploded perspective view showing components of the switch array of the electronic device according to the second embodiment.
  • the switch array of FIG. 14 includes a top plate 12A having a different thickness depending on the position, instead of the top plate 12 of FIG.
  • the switch array in FIG. 14 includes a dielectric member 31A formed so as to reduce the difference in sensitivity between the switches SWx instead of the dielectric member 31 in FIG.
  • the switch array of FIG. 14 is configured similarly to the switch array of FIG.
  • FIG. 15 is a cross-sectional view showing a part of a cross section of the electronic apparatus according to the second embodiment.
  • FIG. 16 is a bottom view showing a part of the top plate 12A of FIG.
  • the top plate 12A has a relatively thin first region 12Aa and a relatively thick second region 12Ab.
  • the top plate 12 ⁇ / b> A faces the dielectric members 31 ⁇ / b> A and 32, the printed wiring board 33, and the fixing member 34 in the region 12 ⁇ / b> Aa.
  • the region 12Ab surrounds the region 12Aa.
  • the contour 12Ac of the region 12Aa is formed in accordance with the contours of the dielectric members 31A, 32 and the printed wiring board 33 so that the dielectric members 31A, 32 and the printed wiring board 33 are accommodated in the recesses of the region 12Aa.
  • the top plate 12A includes an opening 12Ad for operating the volume switch 15 of FIG. 1 in the region 12Ab.
  • the volume switch 15 is fixed to the top plate 12A in the vicinity of the opening 12Ad, for example.
  • Components other than the electrodes E1 to E6 may be provided on the printed wiring board 33.
  • a press detection circuit 21 may be provided on the printed wiring board 33.
  • FIG. 17 is a bottom view showing a state in which the dielectric member 31A of FIG. 14 is arranged on the top plate 12A of FIG.
  • the positions of the electrodes E1 to E6 when the switch array is assembled are indicated by thick dotted lines.
  • the distance d1 indicates the distance from the center of each electrode E1 to E6 to the upper side of the contour 12Ac (that is, the distance from each electrode E1 to E6 to the region 12Ab above each electrode E1 to E6).
  • the distance d2 indicates the distance from the center of each electrode E1 to E6 to the lower side of the contour 12Ac (that is, the distance from each electrode E1 to E6 to the region 12Ab below each electrode E1 to E6).
  • the distance d3 indicates the distance from the center of the electrode E6 to the left side of the contour 12Ac (that is, the distance from the electrode E6 to the left region 12Ab of the electrode E6).
  • the distances d11 to d13 indicate the width of the dielectric member 31A at different locations of the ring-shaped dielectric member 31A (that is, the distance between the inner periphery and the outer periphery of the dielectric member 31A).
  • the distance d3 is shorter than the distances d1 and d2.
  • the electrode E6 is provided closer to the region 12Ab than the other electrodes E1 to E5.
  • the region of the top plate 12A facing the electrode E6 may be less likely to bend than the region of the top plate 12A facing the other electrodes E1 to E5 due to the proximity of the relatively thick region 12Ab. is there.
  • the sensitivity of the switch SW6 including the electrode E6 may be lower than the sensitivity of the switches SW1 to SW5 including the other electrodes E1 to E5.
  • the dielectric member 31A has a region that is not in contact with the top plate 12A in the vicinity of the electrode E6 than in the vicinity of the other electrodes E1 to E5. It is formed to be wide.
  • the width (distance d13) of the dielectric member 31A above the electrode E6 is made smaller than the width (distances d11, d12) of the dielectric member 31A in other places.
  • the distance from the center of the electrode E6 to the inner periphery of the dielectric member 31A is longer than the distance from the center of the other electrodes E1 to E5 to the inner periphery of the dielectric member 31A. (D1-d13> d1-d11).
  • the region of the dielectric member 31A that does not contact the top plate 12A is widened.
  • the flexibility of the region of the top plate 12A that faces the electrode E6 can be improved. Thereby, the sensitivity of the switch SW6 including the electrode E6 can be improved.
  • the top plate 12A is deformed in the vicinity of the opening 12Ad, and the capacity of the switches SW1 to SW6 may change due to the deformation of the top plate 12A. Therefore, it is required to be less affected by the deformation of the top plate 12A other than the depression of the switches SW1 to SW6. For this reason, the dielectric member 31A is formed so that the region in contact with the top plate 12A is wider in the portion of the dielectric member 31A in the vicinity of the opening 12Ad than in other portions of the dielectric member 31A. In the example of FIG.
  • the opening 12Ad (and the volume switch 15) is provided below the electrodes E1 to E6, and the width (distance d12) of the dielectric member 31A below the electrodes E1 to E6 is set to be the dielectric at other locations. It is made larger than the width (distances d11, d13) of the member 31A. That is, the distance from the center of each of the electrodes E1 to E6 to the inner periphery of the dielectric member 31A below each of the electrodes E1 to E6 is larger than the corresponding distance in another place (for example, above each of the electrodes E1 to E6). Short (d2-d12 ⁇ d1-d11).
  • the region of the dielectric member 31A that contacts the top plate 12A is widened.
  • the region of the dielectric member 31A that contacts the top plate 12A below the electrodes E1 to E6 the region of the top plate 12A that faces the electrodes E1 to E6 is less likely to bend.
  • the volume switch 15 may be fixed to the internal device of the electronic device 1 without being fixed to the top plate 12A. Also in this case, when the user operates the volume switch 15, the user's finger may come into contact with the vicinity of the opening 12Ad and the top plate 12A may be deformed. When the CD drive 23 of FIG. 2 is fixed to the top plate 12A, the top plate 12A may be deformed by vibration generated from the CD drive 23. When the electronic device 1 is a portable device, a grip for the user to hold the electronic device 1 may be provided on the top plate 12A in the vicinity of the switches SW1 to SW6. In this case, there is a possibility that the top plate 12A is deformed when the user holds the grip.
  • the top plate 12A may have various structures associated with the deformation of the top plate 12A that changes over time in the region 12Ab, not limited to the volume switch 15 and the opening 12Ad. According to the present embodiment, by forming the dielectric member 31A in accordance with the position of the structure, it is possible to reduce the influence of deformation of the top plate 12A other than pressing of the switches SW1 to SW6.
  • the switch device according to the second embodiment has the following configuration.
  • the top plate 12A includes the first region 12Aa that faces the printed wiring board 33 and the second region 12Ab that surrounds the first region 12Aa. Also good. In this case, the thickness of the second region 12Ab is larger than the thickness of the first region 12Aa.
  • the region 12Aa facing the electrodes E1 to E6 can be bent more easily than the region 12Ab.
  • one of the plurality of electrodes E1 to E6 may be provided closer to the second region 12Ab than the other electrodes.
  • the dielectric member 31A is formed so that a region that does not contact the top plate 12A is wider in the vicinity of the electrode close to the second region 12Ab than in the vicinity of the other electrodes.
  • the dielectric member is improved so as to improve the flexibility of the region. 31A can be formed, and the sensitivity of the switches SW1 to SW6 can be maintained.
  • the top plate 12A may have the structure 12Ad associated with the deformation of the top plate 12A that changes with time in the second region 12Ab.
  • the dielectric member 31A is formed so that a region in contact with the top plate 12A is wider in the portion of the dielectric member 31A in the vicinity of the structure 12Ad than in other portions of the dielectric member 31A.
  • the dielectric member 31A is formed so as to be less affected by the deformation. The sensitivity of the switches SW1 to SW6 can be maintained.
  • the switch device according to the third embodiment is configured similarly to the switch device according to the first or second embodiment. The following description will be made assuming that the switch device according to the first embodiment has the same configuration.
  • FIG. 18 is a flowchart illustrating a switch control process executed by the press detection circuit 21 of the electronic device 1 according to the third embodiment.
  • steps denoted by the same reference numerals as those in FIG. 8 indicate that processing similar to that described in the first embodiment is executed.
  • the sum SUM_HOS_ ⁇ C of the correction change amounts HOS_ ⁇ Cx may be calculated as the sum of the absolute values of the correction change amounts HOS_ ⁇ Cx including the correction change amount having a negative value.
  • step S1 the press detection circuit 21 performs various initial settings using the same threshold value and correction coefficient as those described in the first embodiment.
  • each threshold value and correction coefficient may have different values from those exemplified in the first embodiment.
  • threshold value TH_EDGE may be set to 80
  • threshold value TH_FALL may be set to 80
  • threshold value TH_LOW may be set to ⁇ 80.
  • step S6A the press detection circuit 21 determines the first to third largest correction change amounts MAX_HOS_ ⁇ C, 2ND_HOS_ ⁇ C, and 3RD_HOS_ ⁇ C among the correction change amounts HOS_ ⁇ Cx. Further, the press detection circuit 21 calculates the sum SUM_HOS_ ⁇ C of the correction change amount HOS_ ⁇ Cx.
  • the press detection circuit 21 executes steps S8A and S9A instead of steps S8 and S9 of FIG.
  • FIG. 19 is a flowchart showing a subroutine of the touch detection process (step S8A) of FIG.
  • steps denoted by the same reference numerals as those in FIG. 9 indicate that processing similar to that described in the first embodiment is executed.
  • step S19 the press detection circuit 21 determines whether or not the switch adjacent to the switch having the maximum value MAX_HOS_ ⁇ C has the second and third largest correction change amounts 2ND_HOS_ ⁇ C and 3RD_HOS_ ⁇ C. According to the structure of the switch array, if a certain switch SWx is correctly pressed, the switch SWx should have the largest correction change amount, and the adjacent switch should have the second and third largest correction change amount. It is.
  • step S19 is YES, the press detection circuit 21 determines that the switch having the maximum value MAX_HOS_ ⁇ C is correctly pressed, and otherwise determines that it is a false detection.
  • step S19 is YES, the process proceeds to step S14A, and when NO, the process proceeds to step S17A.
  • the pressing detection circuit 21 may execute step S19 only for some of the switches S1 to SW6 that are likely to be erroneously detected.
  • step S14A the press detection circuit 21 determines whether or not the same switch SWx has the maximum value MAX_HOS_ ⁇ C and satisfies the conditions of steps S13 and S19 over SW_DET_COUNT iterations.
  • step S14A it is possible to detect a state in which it can be considered that a certain switch SWx is correctly pressed.
  • step S14A is YES, the process proceeds to step S15, and when NO, the process returns to step S2 in FIG.
  • step S17A the press detection circuit 21 determines whether or not a state that satisfies the condition of step S12 and does not satisfy the condition of step S13 or S19 continues for a time ABt.
  • step S17A is YES
  • the process proceeds to step S18, and when NO, the process returns to step S2 in FIG.
  • FIG. 20 is a flowchart showing a subroutine of the release detection process (step S9A) of FIG.
  • steps with the same reference numerals as those in FIG. 10A indicate that processing similar to that described in the first embodiment is executed.
  • step S22 is NO
  • steps S33 to S37 in FIG. 10B are executed, and then the process returns to step S2 in FIG.
  • steps S21 and S28 to S30 in FIG. 10A may be omitted.
  • the switch device according to the third embodiment has the following configuration.
  • the press detection circuit 21 determines the second and third largest capacitance change amount among the capacitance change amounts of the respective switches.
  • the capacitance change amount of at least one of the plurality of switches exceeds the first threshold value, and the ratio of the maximum value to the sum is equal to or greater than the second threshold value.
  • the switch adjacent to the switch having the maximum capacity change amount has the second and third largest capacity change amounts respectively for the first period, it has the maximum capacity change amount. It is determined that the switch is in a pressed state.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

Selon la présente invention, chaque électrode Ex et une région correspondante d'une plaque supérieure (12) faisant face aux électrodes Ex constituent des commutateurs SWx qui ont une capacité qui varie par rapport à la région correspondante de la plaque supérieure (12) en étant poussés vers le bas en direction de l'électrode correspondante Ex. Un circuit de détection d'enfoncement (21) calcule des variations de capacité qui indiquent la variation de capacité par rapport à une valeur de référence pour chaque commutateur SWx. Le circuit de détection d'enfoncement (21) calcule une valeur maximale et une somme totale, à partir de la variation de capacité de chaque commutateur SWx. Lorsque la variation de capacité d'au moins un commutateur SWx dépasse une valeur seuil TH_EDGE, et lorsque le rapport de la valeur maximale sur la somme totale est égal ou supérieur à une valeur seuil COMP_LEVELx et que cet état continue sur SW_DET_COUNT fois, le circuit de détection d'enfoncement (21) détermine que le commutateur ayant la variation maximale de capacité est dans l'état enfoncé.
PCT/JP2017/030652 2017-03-31 2017-08-28 Dispositif commutateur et machine électronique Ceased WO2018179481A1 (fr)

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EP17903711.4A EP3605577B1 (fr) 2017-03-31 2017-08-28 Dispositif commutateur et machine électronique
US16/523,845 US10868533B2 (en) 2017-03-31 2019-07-26 Capacitive multi-switch device with common metal plate and electronic machine

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JP2017-071897 2017-03-31
JP2017071897 2017-03-31
JP2017146952A JP6857824B2 (ja) 2017-03-31 2017-07-28 スイッチ装置及び電子機器
JP2017-146952 2017-07-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025013342A1 (fr) * 2023-07-12 2025-01-16 アルプスアルパイン株式会社 Dispositif d'entrée électrostatique

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004112074A (ja) * 2002-09-13 2004-04-08 Matsushita Electric Ind Co Ltd タッチパネルとそれを用いた電磁調理器
JP2004245606A (ja) * 2003-02-10 2004-09-02 Denso Corp 車載機器の操作装置
JP2007122891A (ja) * 2005-10-25 2007-05-17 Matsushita Electric Ind Co Ltd タッチキーとそれを用いた電気機器
JP2009238701A (ja) * 2008-03-28 2009-10-15 Toto Ltd タッチスイッチ検出装置及びそれを用いた給水装置
JP2009258946A (ja) * 2008-04-16 2009-11-05 Japan Aviation Electronics Industry Ltd 静電容量式タッチセンサ
US20140253503A1 (en) 2013-03-05 2014-09-11 Bang & Olufsen A/S Touch system configured on metal surface with x-y and force detection
JP2015133206A (ja) * 2014-01-10 2015-07-23 三菱電機株式会社 タッチスイッチ装置、及び、タッチスイッチ装置に用いられる接触有無の判別方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004112074A (ja) * 2002-09-13 2004-04-08 Matsushita Electric Ind Co Ltd タッチパネルとそれを用いた電磁調理器
JP2004245606A (ja) * 2003-02-10 2004-09-02 Denso Corp 車載機器の操作装置
JP2007122891A (ja) * 2005-10-25 2007-05-17 Matsushita Electric Ind Co Ltd タッチキーとそれを用いた電気機器
JP2009238701A (ja) * 2008-03-28 2009-10-15 Toto Ltd タッチスイッチ検出装置及びそれを用いた給水装置
JP2009258946A (ja) * 2008-04-16 2009-11-05 Japan Aviation Electronics Industry Ltd 静電容量式タッチセンサ
US20140253503A1 (en) 2013-03-05 2014-09-11 Bang & Olufsen A/S Touch system configured on metal surface with x-y and force detection
JP2015133206A (ja) * 2014-01-10 2015-07-23 三菱電機株式会社 タッチスイッチ装置、及び、タッチスイッチ装置に用いられる接触有無の判別方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3605577A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025013342A1 (fr) * 2023-07-12 2025-01-16 アルプスアルパイン株式会社 Dispositif d'entrée électrostatique

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