WO2022264552A1 - 入力装置 - Google Patents
入力装置 Download PDFInfo
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- WO2022264552A1 WO2022264552A1 PCT/JP2022/010345 JP2022010345W WO2022264552A1 WO 2022264552 A1 WO2022264552 A1 WO 2022264552A1 JP 2022010345 W JP2022010345 W JP 2022010345W WO 2022264552 A1 WO2022264552 A1 WO 2022264552A1
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- vibration
- load
- pressing
- period
- control unit
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- 238000001514 detection method Methods 0.000 claims abstract description 71
- 238000005259 measurement Methods 0.000 claims description 6
- 101150045326 Fth1 gene Proteins 0.000 description 56
- 230000035807 sensation Effects 0.000 description 32
- 238000000034 method Methods 0.000 description 19
- 230000008569 process Effects 0.000 description 12
- 230000001629 suppression Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 230000007423 decrease Effects 0.000 description 8
- 230000004044 response Effects 0.000 description 7
- 206010044565 Tremor Diseases 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
Definitions
- the present invention relates to an input device.
- Patent Document 1 proposes a technique of applying vibration when, for example, a load exceeding a predetermined standard is detected. Patent Document 1 further describes that key repeat is performed when a predetermined reference load is maintained.
- Patent Document 1 describes vibrating when a load greater than or equal to a predetermined standard is detected by pressing by the operator.
- a load greater than or equal to a predetermined standard is detected by pressing by the operator.
- the operator lifts his/her finger off it is considered that the operator feels uncomfortable because the tactile sensation is not obtained. Therefore, it is considered preferable to apply vibration even when the load becomes smaller than a predetermined reference by releasing the depression.
- An input device includes a touch sensor, a detection unit that detects a load caused by pressing a touch surface of the touch sensor, a vibration imparting unit that vibrates the touch surface, and a load detected by the detection unit. , a control unit that instructs the vibration imparting unit to vibrate the touch surface when it is determined that the load exceeds the predetermined pressure standard, and a timer that measures the elapsed time after it is determined that the load exceeds the predetermined pressure standard. The control unit further switches whether to instruct the vibration applying unit to vibrate the touch surface based on the elapsed time until it is determined that the load falls below a predetermined release criterion.
- FIG. 1 is a block diagram showing the configuration of the input device according to the first embodiment.
- FIG. 2 is a diagram illustrating the top surface of the input device according to the first embodiment, on which a touch surface for receiving operations is arranged; 3 is a cross-sectional view of the input device according to the first embodiment taken along the line AA in FIG. 2.
- FIG. 4 is a diagram exemplifying a change in pressure load detected by the load detection unit of the input device according to the first embodiment in response to pressing by the operator.
- FIG. 5 is a diagram explaining a detection suppression period used for control by the input device according to the first embodiment.
- FIG. 6 is a flow chart showing overall control by the control unit according to the first embodiment.
- FIG. 7 is a diagram exemplifying a change in pressure load detected by the load detection unit of the input device according to the second embodiment in response to pressing by the operator.
- FIG. 8 is a flow chart showing overall control by a control unit according to the second embodiment.
- FIG. 1 is a block diagram showing the configuration of the input device according to the first embodiment.
- the input device 100 includes a touch sensor 101 , a load detection section 102 , a vibration application section 103 , a control section 104 and a storage section 105 .
- the input device 100 may be applied to any device as long as it is an input device that receives an operation input from an operator.
- Applied devices may be, for example, an input device provided near the center panel of a vehicle, or a portable touch pad or the like.
- the storage unit 105 stores programs executed by the control unit 104 and various parameters used by the control unit 104 for control.
- the touch sensor 101 is a sensor for detecting a pressed position on a touch surface provided in the input device 100.
- a capacitive method it is conceivable to use a capacitive method, but a resistive film method, an optical method, or the like may be used. , other techniques may be used.
- the touch sensor 101 is formed in a film shape having a predetermined area corresponding to the touch surface of the input device 100 .
- the vibration applying unit 103 vibrates the touch surface in response to the operator's operation on the input device 100 .
- a solenoid, an eccentric motor, or a piezoelectric element may be used as the vibration imparting unit 103 according to the present embodiment, but any configuration may be used as long as it is capable of imparting vibration.
- the vibration applying unit 103 may have a plurality of configurations.
- the vibration imparting unit 103 imparts a tactile sensation close to the change in the load.
- the first tactile sensation is the tactile sensation obtained by the load applied to the operator's finger or the like when the push button is pressed, that is, the so-called click tactile sensation when the push button is pressed.
- the load changes in the opposite direction to that of the push.
- the load applied to the operator's finger and the push button decreases in response to the release of the push button.
- the push button returns to the original dome shape from the inverted state of the dome-shaped spring in accordance with the reduction of the load, the load applied to the operator's finger or the like increases sharply and a click feeling is generated.
- the vibration imparting unit 103 imparts a tactile sensation close to the change in the load.
- the second tactile sensation is the tactile sensation obtained by the load applied to the operator's finger or the like when the push button is released, that is, the so-called click tactile sensation at the time of release.
- the click tactile sensation that the operator obtains by pressing the mechanical push button is a pair of the first tactile sensation at the time of pressing and the second tactile sensation at the time of releasing. Then, the first tactile sensation when pressed and the second tactile sensation when released occur consecutively at appropriate time intervals. For this reason, for example, the operator feels uncomfortable if one of the first tactile sensation and the second tactile sensation occurs multiple times with one press. Also, the operator feels uncomfortable if the time interval between the first tactile sensation and the second tactile sensation is too short or too long.
- the vibration imparting unit 103 generates a vibration with a click tactile sensation when the operator presses the touch sensor 101 and when the operator releases the touch sensor 101 .
- Vibration control is performed so that the operator can obtain a tactile sensation similar to that of a mechanical push button switch. Note that the conditions for applying vibration will be described later.
- a load detection unit (an example of a detection unit) 102 detects the load applied by the operator to the touch surface of the touch sensor 101 .
- the control unit 104 includes a timer unit 106 and controls the entire input device 100 .
- the control unit 104 is, for example, a control circuit, and performs various controls by executing programs stored in the storage unit 105 .
- the timer unit 106 is configured to measure the elapsed time from when the operator presses the button or the like, and uses a timer or the like, for example. For example, the timer 106 measures the elapsed time t after the controller 104 determines that the load detected by the load detector 102 exceeds a predetermined pressure reference.
- a predetermined pressing reference is a reference regarding a pressing load for determining that an operator has pressed.
- the control unit 104 determines whether or not the load detected by the load detection unit 102 exceeds the threshold Fth, which is the pressing reference.
- FIG. 2 is a diagram illustrating the top surface of the input device 100 according to the present embodiment, on which a touch surface for receiving operations is arranged.
- the touch surface 111 of the input device 100 shown in FIG. 2 has a first switch area SW1, a second switch area SW2, and a third switch area SW3 on the XY plane.
- the switch is pressed when the pressing load on each of the first switch area SW1, the second switch area SW2, and the third switch area SW3 satisfies a predetermined pressing reference. processed as if
- FIG. 3 is a cross-sectional view of the input device 100 taken along line AA of FIG. 2 according to the first embodiment.
- the X-axis, Y-axis, and Z-axis are defined below as shown in FIG.
- the housing 150 of the input device 100 is provided with a touch surface 111 on the upper surface in the Z-axis (height) direction.
- a touch sensor 101 is provided on the Z-axis negative direction (lower) side of the touch surface 111 .
- the touch sensor 101 has substantially the same area as the touch surface 111 in the X-axis direction and the Y-axis direction.
- the touch sensor 101 of the present embodiment has electrodes provided in regions of the touch surface 111 corresponding to the first switch region SW1, the second switch region SW2, and the third switch region SW3.
- the touch sensor 101 measures a change in capacitance associated with the proximity or contact of the operator to detect the areas pressed by the operator (for example, the first switch area SW1, the second switch area SW2, and the second switch area SW2). any one or more of the three switch areas SW3).
- the touch sensor 101 outputs a signal indicating the detected area to the control unit 104 .
- the touch sensor 101 is not limited to the example in which electrodes are provided in regions corresponding to the first switch region SW1, the second switch region SW2, and the third switch region SW3.
- the patterns may be arranged vertically and horizontally in a matrix.
- the touch sensor 101 outputs to the control unit 104 position information indicating the coordinates of the XY plane, which indicates the pressed position.
- the control unit 104 holds position information on the XY plane corresponding to each of the first switch area SW1, the second switch area SW2, and the third switch area SW3. Accordingly, the control unit 104 can identify the pressed area (for example, the first switch area SW1, the second switch area SW2, or the third switch area SW3) from the input position information.
- the vibration applying unit 103 is installed on the Z-axis positive direction side (on the upper side where the touch surface 111 exists) of the space provided inside the housing 150. By vibrating the vibration applying unit 103, it is possible to give tactile feedback to the operator's finger or the like touching the touch surface 111.
- FIG. 1 A diagrammatic representation of the vibration applying unit 103 .
- the housing 150 is provided with a convex portion 150A on the Z-axis positive direction (upper) side facing the load detection portion 102 in the internal space.
- the upper surface of the housing 150 bends in the Z-axis negative direction (downward).
- 150A moves in the Z-axis negative direction (downward).
- the load detection unit 102 typically uses a non-contact distance sensor. That is, the load detection unit 102 according to the present embodiment detects the amount of movement of the protrusion 150A in the Z-axis negative direction (downward) and outputs a signal indicating the detected amount of movement to the control unit 104 .
- the control unit 104 processes the input signal as a signal indicating the pressure load applied by the operator.
- a pressure (strain) sensor or the like that detects the load actually pressed by the operator may be used.
- the load detection unit 102 was described as an example of the detection unit. is not limited to the detection of The detection unit may detect, for example, the amount of displacement of the touch surface 111 caused by pressing, or the area of contact of the operator with respect to the touch surface 111 . Then, the control unit 104 may determine that the pressing operation has been performed when the amount of displacement exceeds a predetermined amount, or when the area of contact with the touch surface 111 exceeds a predetermined area.
- the touch sensor 101 corresponding to the touch surface 111 may be provided with the touch sensor 101 .
- FIG. 4 is a diagram exemplifying changes in pressure load detected by the load detection unit 102 of the input device 100 according to the present embodiment in response to pressing by the operator.
- the vertical axis shown in FIG. 4 indicates the load (force), and the horizontal axis indicates time.
- a line 401 indicates an increase in the pressure load on the touch surface 111 according to the operator's pressing.
- Lines 402, 403, and 404 show the decrease in pressure load in response to the release of the press by the operator after the pressure load has increased.
- three lines 402, 403, and 404 indicate the decrease in the pressing load according to the difference in timing of releasing the pressing.
- a threshold Fth is set as a predetermined pressure reference for detecting the pressure load. Therefore, the control unit 104 of the present embodiment determines whether or not the pressing load detected by the load detecting unit 102 exceeds a threshold Fth as a pressing reference for determining the presence or absence of pressing (presence or absence of pressing).
- control unit 104 determines that the pressure load detected by the load detection unit 102 exceeds the threshold value Fth, the control unit 104 corresponds to the position information detected by the touch sensor 101 (the first switch region SW1, Processing is performed assuming that the second switch area SW2 or the third switch area SW3) has been pressed.
- the control unit 104 determines that the pressing load exceeds the threshold value Fth, the control unit 104 detects the predetermined area (first switch area) that the operator has pressed based on the signal input from the touch sensor 101. SW1, the second switch area SW2, or the third switch area SW3) is specified. After that, the control unit 104 outputs an ON signal indicating that the identified predetermined area has been pressed to the external device. Thereby, the external device can perform processing corresponding to the operation input by the input device 100 . Furthermore, when the control unit 104 determines that the pressure load exceeds the threshold value Fth, the control unit 104 instructs the vibration applying unit 103 to vibrate the touch surface 111 .
- control unit 104 determines that the pressure load detected by the load detection unit 102 exceeds a predetermined pressure reference (for example, the pressure load exceeds the threshold value Fth).
- the vibration imparting unit 103 is instructed to vibrate the touch surface 111 .
- the pressing load after determining that the pressing load exceeds the threshold Fth, it is determined whether or not the pressing load satisfies a predetermined release criterion.
- the predetermined release criterion is a reference regarding the pressing load for determining that the pressing by the operator has been released.
- the control unit 104 determines whether or not the load detected by the load detection unit 102 is below the threshold Fth, which is the release criterion.
- the same value is used for the threshold Fth for determining that the button has been pressed and the threshold Fth for determining that the button has been released.
- the same value is used for the detection of pressing and the detection of release from pressing, so the processing can be simplified, and the burden of processing and the burden of implementation can be reduced.
- control unit 104 instructs the vibration imparting unit 103 to vibrate the touch surface 111 based on the elapsed time t until it is determined that the pressing load falls below a predetermined release criterion (becomes smaller than the threshold value Fth). Toggles whether or not
- the elapsed time t from when it is determined that the pressing load exceeds the predetermined pressing criterion until it is determined that the pressing load is below the predetermined releasing criterion is also referred to as pressing time or pressing time.
- the input device 100 of the present embodiment vibrates the touch surface 111 when the operator presses the touch surface 111, and also vibrates the touch surface 111 when the operator releases the touch surface 111.
- the vibration imparting unit 103 may vary the frequency, amplitude, etc. between the vibration when the touch surface 111 is pressed and the vibration when the touch surface 111 is released from being pressed. As a result, the operator can obtain the first tactile sensation when pressing down and the second tactile sensation when releasing.
- the vibration control will overlap multiple times. In this case, the operator feels uncomfortable because the first tactile sensation and the second tactile sensation overlap multiple times.
- the control unit 104 of the present embodiment controls the vibration of the touch surface 111 at the time of release.
- the storage unit 105 stores information indicating whether or not to instruct the vibration control corresponding to the pressing time.
- the storage unit 105 stores a first vibration mask period 411 that does not instruct vibration of the touch surface, a vibration control period 412 that is a period after the first vibration mask period 411 and instructs vibration of the touch surface, and a vibration control period 412 that is a period after the first vibration mask period 411.
- a second vibration mask period 413 which is a period after the control period 412 and does not instruct the vibration of the touch surface, is stored in advance.
- the clock unit 106 starts counting the elapsed time t with the time '0' at which the pressure load exceeds the threshold Fth as the start time.
- the clock unit 106 measures the pressing time until the pressing load falls below the threshold value Fth after starting to count the elapsed time t.
- first reference time t1 the elapsed time '0' to t1
- second reference time t2 the elapsed time t1 to t2
- the vibration control period 412 the period from the elapsed time t2 to t3 (hereinafter referred to as the end reference time t3) is defined as the second vibration mask period 413.
- a first vibration mask period 411 and a second vibration mask period 413 are time zones in which vibration control is suppressed (not performed).
- a vibration control period 412 is a time period during which vibration control is performed. Note that the first reference time t1, the second reference time t2, and the end reference time t3 are set appropriately according to the embodiment.
- control unit 104 determines in which one of the first vibration mask period 411, the vibration control period 412, and the second vibration mask period 413 the measured pressing time is included, Whether or not to instruct to vibrate is switched according to the determination result.
- the vibration applying unit 103 is not instructed to vibrate the touch surface 111 .
- the first tactile sensation and the second tactile sensation can be obtained. It is possible to prevent overlapping with the tactile sensation.
- control unit 104 determines that the pressing load has fallen below the threshold value Fth within the vibration control period 412 as a result of the pressure load decreasing as indicated by the line 403 (for example, time t12). , instructs the vibration imparting unit 103 to vibrate the touch surface 111 . Thereby, the operator can obtain the first tactile sensation when pressing down and the second tactile sensation when releasing.
- the vibration imparting unit 103 is not instructed to vibrate the touch surface 111 . That is, if the time until the pressing load falls below the threshold value Fth is too long, the process ends without providing tactile feedback upon release.
- control unit 104 determines that the pressing load did not fall below the threshold value Fth until it determines that the elapsed time t has reached the end reference time t3 (the second vibration mask period 413 has passed), an abnormal situation occurs. , the measurement of the elapsed time t by the clock unit 106 is terminated, and the process is terminated.
- control unit 104 waits until a predetermined period (hereinafter referred to as a detection suppression period t4) after determining that the pressure by the operator's finger or the like has been released. Control is performed so that detection (determining whether or not the pressing load exceeds the threshold value Fth) is not performed.
- the detection suppression period t4 is a period set in advance as a period for suppressing (not performing) detection of the next pressing after the previous pressing is released, and is set according to the embodiment. be.
- the control unit 104 determines that the pressing load has fallen below the threshold value Fth within the first vibration mask period 411 (for example, time t11), such as when the operator's finger or the like is shaking, vibration is applied.
- the unit 103 is not instructed to vibrate the touch surface 111 .
- the control unit 104 since the state in which the pressing load exceeds the threshold Fth and the state in which the pressing load falls below the threshold Fth are alternately repeated, the control unit 104 repeatedly determines that the pressing load exceeds the threshold Fth.
- the vibration control and the ON signal are output in a number corresponding to the number of times the determination is performed. is performed.
- Such control is considered to be control unintended by the operator, and therefore gives the operator a sense of discomfort. Therefore, in the input device 100 according to the present embodiment, in order to suppress (avoid) such a situation, the detection suppression period elapses after the control unit 104 determines that the operator has released the pressure of the finger or the like. The next press detection is controlled so as not to be performed until the
- FIG. 5 is a diagram explaining the detection suppression period used for control by the input device 100 according to the present embodiment.
- a line 401 indicates an increase in pressing load according to pressing by the operator.
- a line 501 indicates a decrease in the pressing load according to the release of pressing by the operator's finger or the like on the touch surface 111 after the pressing load increases.
- the times at which the pressure load falls below the threshold value Fth correspond to the first vibration mask period 411, the vibration control period 412, and the second vibration mask period 413. Even if it is included in any of, the following control is performed.
- control unit 104 when the control unit 104 determines that the pressing load has fallen below the threshold value Fth, it sets the elapsed time t21 at which it is determined to have fallen below as the release detection time toff.
- the control unit 104 controls the load applied by the first pressing from when it is determined that the load due to the first pressing satisfies the predetermined release criterion (release detection time toff) until the detection suppression period t4 elapses. is input to the touch surface 111 (whether it exceeds the touch sensor threshold value Fth) is not determined.
- FIG. 6 is a flowchart showing overall control by the control unit 104 according to this embodiment.
- control unit 104 determines whether or not the pressure load F detected by the load detection unit 102 exceeds the threshold value Fth (S601). When the control unit 104 determines that the pressure load F is equal to or less than the threshold value Fth (S601: No), it repeats the processing of S601.
- the control unit 104 determines that the pressure load F exceeds the threshold value Fth (S601: Yes)
- the predetermined regions first switch region SW1, second switch region SW1, second An ON signal indicating that the switch area SW2 or the third switch area SW3 has been pressed is output to the external device (S602).
- the control unit 104 outputs an instruction to vibrate the touch surface 111 to the vibration imparting unit 103 (S603). Thereby, the vibration applying unit 103 vibrates the touch surface 111 according to the input instruction.
- the control unit 104 causes the timer unit 106 to start measuring the elapsed time t (S604).
- the control unit 104 determines whether or not the pressure load F detected by the load detection unit 102 is below the threshold value Fth (S605). When the control unit 104 determines that the pressure load F is equal to or greater than the threshold Fth (not less than the threshold Fth) (S605: No), it determines whether the elapsed time t has exceeded the end reference time t3 (S606). ).
- control unit 104 determines that the elapsed time t has exceeded the end reference time t3 (S606: Yes), it ends the measurement of the elapsed time t by the clock unit 106 (S613), and ends the process. On the other hand, when determining that the elapsed time t has not exceeded the end reference time t3 (S606: No), the control unit 104 returns the processing to S605.
- control unit 104 determines that the pressing load F has fallen below the threshold value Fth (S605: Yes)
- the control unit 104 sets the elapsed time t when it is determined to have fallen below as the release detection time toff (S607). .
- control unit 104 determines whether or not first reference time t1 ⁇ disengagement detection time toff ⁇ second reference time t2 (S608). If it is determined that the first reference time t1 ⁇ disengagement detection time toff ⁇ second reference time t2 is not satisfied (S608: No), the process proceeds to S610.
- the control unit 104 when determining that the first reference time t1 ⁇ release detection time toff ⁇ second reference time t2 is satisfied (S608: Yes), the control unit 104 outputs an instruction to vibrate the touch surface 111 to the vibration imparting unit 103. (S609). Thereby, the vibration applying unit 103 vibrates the touch surface 111 .
- control unit 104 performs control to suppress the detection of the pressure load F by the load detection unit 102 (S610). As a result, even if the operator presses the touch surface 111, the pressing load F is not detected.
- control unit 104 determines whether "elapsed time t - release detection time toff" has passed the detection suppression period t4 (S611). If it is determined that the time has not elapsed (S611: No), the control for suppressing the detection of the pressing load F is continued.
- control unit 104 determines that the “elapsed time t ⁇ release detection time toff” has passed the detection suppression period t4 (S611: Yes)
- the control unit 104 controls the pressure load F detected by the load detection unit 102 to The control for suppressing detection ends (S612).
- control unit 104 ends the measurement of the elapsed time t by the timer unit 106 (S613), and ends the process.
- control unit 104 By performing the above-described control, the control unit 104 according to the present embodiment can perform a click like a mechanical push button when the operator presses a predetermined area at an appropriate timing and releases the press. It can give you a tactile sensation.
- the determination processing load can be reduced by determining the detection of pressing and the detection of release of pressing with a single threshold value Fth.
- the vibration control can be switched according to the elapsed time from the detection of the pressure until the release of the pressure. can give tactile feedback in line with the intention of
- FIG. 7 is a diagram exemplifying changes in the pressure load detected by the load detection unit 102 of the input device 100 according to the present embodiment in response to pressing by the operator.
- the vertical axis shown in FIG. 7 indicates the load (force), and the horizontal axis indicates time.
- the increase in pressure load is indicated by line 401
- the decrease in pressure load is indicated by lines 402, 403, and 404.
- the predetermined criteria for detecting the pressing load are a first threshold Fth1 as a pressing standard for determining whether or not the button has been pressed, and a release standard for determining whether or not the pressing has been released.
- a second threshold Fth2 is set.
- the first threshold Fth1 is set to a value higher than the second threshold Fth2.
- control unit 104 determines that the pressure load detected by the load detection unit 102 exceeds the first threshold value Fth1, the control unit 104 detects a predetermined region (first switch region) corresponding to the position information detected by the touch sensor 101. Processing is performed assuming that SW1, second switch area SW2, or third switch area SW3) has been pressed.
- control unit 104 determines that the pressure load exceeds the first threshold value Fth1
- the control unit 104 identifies the predetermined area that the operator has pressed based on the signal input from the touch sensor 101. , outputs an ON signal indicating that the identified predetermined area has been pressed to the external device. Furthermore, the control unit 104 instructs the vibration imparting unit 103 to vibrate the touch surface 111 .
- the control unit 104 controls the It switches whether or not to instruct the vibration imparting unit 103 to vibrate the touch surface 111 .
- the storage unit 105 provides a first vibration mask period 711 in which vibration of the touch surface is not instructed, and a vibration control period after the first vibration mask period 711 in which vibration of the touch surface is instructed.
- the clock unit 106 starts counting the elapsed time t with the time '0' at which the pressure load exceeds the first threshold value Fth1 as the start time.
- the elapsed time '0' to t1' (hereinafter referred to as the first reference time t1') is defined as the first vibration mask period 711, and the elapsed time t1' to t2' (hereinafter referred to as the second reference time t1').
- Reference time t2′ is defined as a vibration control period 712
- elapsed time from t2′ to t3′ (hereinafter referred to as end reference time t3′) is defined as a second vibration mask period 713.
- first vibration mask period 711, the vibration control period 712, and the second vibration mask period 713 according to the present embodiment are periods from when the pressing load exceeds the first threshold value Fth1 to when it falls below the second threshold value Fth2. It differs from the first vibration mask period 411, the vibration control period 412, and the second vibration mask period 413 of the first embodiment in that they are set.
- the vibration imparting unit 103 is not instructed to vibrate the touch surface 111 .
- control unit 104 determines that the pressure load has fallen below the second threshold value Fth2 within the vibration control period 712 as a result of the decrease in the pressure load as indicated by the line 403 (for example, time t12′), an instruction to vibrate the touch surface 111 is given to the vibration imparting unit 103 .
- control unit 104 determines that the pressure load has fallen below the second threshold value Fth2 within the second vibration mask period 713 as a result of the pressure load decreasing as indicated by the line 404 ( For example, at time t13'), the vibration imparting unit 103 is not instructed to vibrate the touch surface 111.
- FIG. 1 the control unit 104 determines that the pressure load has fallen below the second threshold value Fth2 within the second vibration mask period 713 as a result of the pressure load decreasing as indicated by the line 404 ( For example, at time t13'), the vibration imparting unit 103 is not instructed to vibrate the touch surface 111.
- control unit 104 determines that the pressure load has not fallen below the second threshold value Fth2 by the time it determines that the elapsed time t has exceeded the end reference time t3', the process ends.
- control unit 104 after determining that the operator is released from the pressure by the finger or the like, continues the next pressure detection until the detection suppression period t4 elapses. control not to do so. Note that the detection suppression period t4 is the same as in the first embodiment, and a description thereof will be omitted.
- FIG. 8 is a flowchart showing overall control by the control unit 104 according to this embodiment.
- the control unit 104 determines whether or not the pressure load F detected by the load detection unit 102 exceeds the first threshold value Fth1 (S801). When the control unit 104 determines that the pressure load F is equal to or less than the first threshold value Fth1 (S801: No), it repeats the processing of S801 again.
- control unit 104 determines that the pressure load F exceeds the first threshold value Fth1 (S801: Yes), a predetermined region (first switch region SW1, first An ON signal indicating that the second switch area SW2 or the third switch area SW3) has been pressed is output to the external device (S802).
- the control unit 104 outputs an instruction to vibrate the touch surface 111 to the vibration imparting unit 103 (S803). Thereby, the vibration applying unit 103 vibrates the touch surface 111 according to the input instruction.
- the control unit 104 causes the timer unit 106 to start measuring the elapsed time t (S804).
- the control unit 104 determines whether or not the pressure load F detected by the load detection unit 102 is below the second threshold Fth2 (S805). When the control unit 104 determines that the pressure load F is greater than or equal to the second threshold value Fth2 (not less than the second threshold value Fth2) (S805: No), the elapsed time t exceeds the end reference time t3'. (S806).
- control unit 104 determines that the elapsed time t has exceeded the end reference time t3' (S806: Yes), it terminates the measurement of the elapsed time t by the clock unit 106 (S813), and ends the process.
- the control unit 104 determines that the elapsed time t has not exceeded the end reference time t3′ (S806: No)
- the process proceeds to S805.
- control unit 104 determines that the pressure load F has fallen below the second threshold value Fth2 (S805: Yes)
- the control unit 104 sets the release detection time toff to the elapsed time t when it is determined that it has fallen below ( S807).
- control unit 104 determines whether or not the first reference time t1' ⁇ release detection time toff ⁇ second reference time t2' is satisfied (S808). If it is determined that the first reference time t1′ ⁇ disengagement detection time toff ⁇ second reference time t2′ is not satisfied (S808: No), the process proceeds to S810.
- the control unit 104 determines that the first reference time t1′ ⁇ release detection time toff ⁇ second reference time t2′ is satisfied (S808: Yes)
- the control unit 104 instructs the vibration applying unit 103 to vibrate the touch surface 111.
- Output (S809).
- the vibration applying unit 103 vibrates the touch surface 111 .
- Subsequent processing is the same as S610 to S613 in FIG. 6 of the first embodiment, so that the measurement of the elapsed time t by the clock unit 106 is completed (S810 to S813), and the processing ends. .
- the pressing load is determined using two thresholds, the first threshold Fth1 and the second threshold Fth2.
- the first threshold Fth1 and the second threshold Fth2 since there is a difference between the first threshold value Fth1 and the second threshold value Fth2, it is possible to suppress repeated detection of the pressing determination and the pressing release determination when the finger trembles. .
- the first threshold value Fth1 and the second threshold value Fth2 since there is a difference between the first threshold value Fth1 and the second threshold value Fth2, it is possible to suppress repeated detection of the pressing determination and the pressing release determination when the finger trembles. .
- the input device since it is switched whether or not to vibrate according to the timing of releasing the pressure, it is possible to give appropriate tactile feedback to the operator's operation. Further, in the input device, after the pressure is released, control is performed so that the next pressure detection is not performed until the detection suppression period elapses. As a result, it is possible to prevent multiple repetitions of detection of pressure even when the finger is shaken. As a result, the input device according to the above-described embodiment can suppress the vibration control corresponding to the plurality of times, and thus can provide tactile feedback (vibration control) in accordance with the operator's intention.
- Input device 101 Touch sensor 102
- Load detection unit 103 Vibration imparting unit 104
- Control unit 105
- Storage unit 111 Touch surface 150
- Housing 150A Convex part
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Abstract
Description
図1は、第1の実施形態に係る入力装置の構成を示したブロック図である。図1に示されるように入力装置100は、タッチセンサ101と、荷重検出部102と、振動付与部103と、制御部104と、記憶部105と、を備えている。
上述した実施形態においては、閾値Fthを用いる例について説明した。つまり、押下荷重Fが閾値Fthを上回った場合に押下されたと判定し、押下荷重Fが閾値Fthを下回った場合に押下から解放されたと判定した。しかしながら、上述した実施形態は、閾値が一つの場合に制限するものではない。そこで、第2の実施形態では、押圧を検出する場合の閾値と、解放を検出する場合の閾値と、を異ならせる例について説明する。なお、本実施形態に係る入力装置100の構成は、第1の実施形態と同様の構成として、同一の符号を割り当て、説明を省略する。
Claims (5)
- タッチセンサと、
前記タッチセンサのタッチ面に対する押圧による荷重を検出する検出部と、
前記タッチ面を振動させる振動付与部と、
前記検出部により検出される前記荷重が、所定の押圧基準を上回ると判定された場合に、前記振動付与部に前記タッチ面を振動させる指示を行う制御部と、
前記荷重が前記所定の押圧基準を上回ると判定されてからの経過時間を測定する計時部と、を備え、
前記制御部は、さらに、前記荷重が所定の解放基準を下回ると判定されるまでの前記経過時間に基づいて、前記振動付与部に前記タッチ面を振動させる指示を行うか否かを切り替える、
入力装置。 - 前記タッチ面の振動を指示しない期間として予め定められた第1振動マスク期間と、当該第1振動マスク期間の後の期間であって、前記タッチ面の振動を指示させる期間として予め定められた振動制御期間と、当該振動制御期間の後の期間であって前記タッチ面の振動を指示しない期間として予め定められた第2振動マスク期間と、を記憶する記憶部と、
前記制御部は、さらに、前記所定の解放基準を下回ると判定されるまでの前記経過時間が、前記第1振動マスク期間、前記振動制御期間及び、前記第2振動マスク期間のうちいずれの期間に含まれているかを判定し、当該判定の結果に応じて、振動させる指示を行うか否かを切り替える、
請求項1に記載の入力装置。 - 前記制御部は、前記経過時間が、前記第2振動マスク期間を経過した場合に、前記計時部による前記経過時間の計測を終了させる、
請求項2に記載の入力装置。 - 前記制御部は、第1の押圧による前記荷重が前記所定の解放基準を下回ると判定された後、予め定められた期間を経過するまで、当該第1の押圧の次の押圧による前記荷重が、前記所定の押圧基準を上回るか否かの判定を行わない、
請求項1乃至3のいずれか一つに記載の入力装置。 - 前記所定の押圧基準で示された押圧による前記荷重と、前記所定の解放基準で示された押圧による前記荷重と、の値が同一である、
請求項1乃至4のいずれか一つに記載の入力装置。
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