JP2004181305A - Operation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation device capable of making such a state that an operation part is operated recognize certainly. <P>SOLUTION: The operation part 22 is provided to a case 21 and this case 21 is provided with a detection member 25A, a control means 10, a vibration drive means 30 and a vibration generating member 1. When the operation of the operation part 22 is detected by the detection member 25A, a drive signal is produced in the control means 10 and the vibration generating member 1 is driven by the drive signal through the vibration drive means 30. When the vibration generating member 1 is driven so that a predetermined waveform is obtained, a false click feeling is obtained by vibration. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an operation device that can be mounted on a small information terminal device such as a mobile phone, a PDA, and a portable game device, and particularly relates to an operation device that can exhibit an operation feeling by vibration without producing sound.
[0002]
[Prior art]
As a conventional operation device capable of generating an operation feeling, for example, there is one disclosed in Patent Document 1.
[0003]
In the operating device disclosed in Patent Document 1, a contact is formed on an insulating substrate, and a dome-shaped diaphragm is provided so as to cover an upper portion of the contact. A button supported by the case is provided on the upper part of the diaphragm. When the button is depressed, the diaphragm is pressed and bent, and the diaphragm and the contact come into contact with each other to switch the switch output.
[0004]
It is common to mount such an operating device on the back side of the operating unit of a mobile phone terminal so that when a key of the mobile phone terminal is operated, a click feeling, which is a type of operating feeling, is generated. Has been done.
[0005]
[Patent Document 1]
JP-A-5-258641
[0006]
[Problems to be solved by the invention]
However, in the mobile phone terminal equipped with the operating device described in Patent Document 1, a function to generate a click feeling when a key provided on the mobile phone terminal is operated by the operating device, and an incoming call by vibration (vibrator). Is performed by a separate device from the function of notifying the user. Further, depending on the situation, a click sound generated when a key is operated is felt loud, and an inconvenient scene occurs.
[0007]
Also, some foldable mobile phones generate a "click" sound generated when the mobile phone is opened from the folded state. In such a case, the sound may be excessively felt in some cases.
[0008]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide an operation device that can generate an operation feeling without having to consider sound leakage.
[0009]
[Means for Solving the Problems]
The operation device of the present invention includes an operation unit that performs a predetermined input, and a vibration generating member, and when the operation of the operation unit is detected, operates the vibration generation member to operate the operation unit. It is characterized by outputting vibrations in accordance with timing.
[0010]
In the present invention, since the vibration is performed in accordance with the operation timing of the operation unit, there is no need to arrange a diaphragm or the like on the back side of the operation unit, and thus the apparatus can be made thinner.
[0011]
For example, the vibration generating member has a movable body, and a change connecting the vertexes of the waveform amplitude when the movable body is vibrated is defined as an envelope, and the envelope is felt as the vibration.
[0012]
Further, a detection member for detecting an operation of the operation unit, and a control means for performing a signal processing according to the operation when the operation is detected by the detection member and generating a drive signal for generating vibration are provided. The vibration generating member may be operated by the drive signal output from the control means.
[0013]
A detection member for detecting an operation of the operation unit; a control unit for performing signal processing according to the operation when the operation is detected by the detection member; and the control unit independently from the detection member. Vibration driving means for receiving a detection signal may be provided, and the vibration generating member may be operated by the vibration driving means. Thereby, the processing load on the control means can be reduced.
[0014]
For example, an operation unit having one or more press-type key input units is provided, and each time the key input unit is operated, the vibration generating member is driven, and the operation of the key input unit is performed. On the other hand, a configuration in which a pseudo click feeling is given by the vibration can be provided. The operation unit may be of a pad type capable of inputting coordinates, or may be of a touch panel type having a key input unit displayed on a screen.
[0015]
In this case, the type of the vibration may be switched based on an input pattern of the key input unit.
[0016]
Further, the control means may determine whether or not the operation of the operation unit is correct, and when it is determined that the operation of the operation unit is incorrect, the vibration indicating the warning may be generated. .
[0017]
Further, communication means capable of communicating or talking via a wireless medium is provided, and the vibration generating member may be provided with a function of notifying an incoming call. Thus, the function of notifying an incoming call and the function of giving a pseudo click feeling by vibration can be used by one vibration generating member.
[0018]
Further, according to the present invention, a vibration generating member is provided in a case whose shape changes between a use state and a non-use state, and a detection member that detects that the case has changed from the non-use state to the use state is provided. The vibration generating member is driven in response to the detection of the detection member. For example, a mobile phone terminal that can be folded into two.
[0019]
In this case, the vibration generating member has a movable body, and a change connecting the vertexes of the amplitude of the waveform when the movable body is vibrated is defined as an envelope, and the envelope can be felt as the vibration.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows an example of vibration generating means mounted on the operating device of the present invention, wherein A is a perspective sectional view and B is a sectional view. FIG. 7 is a perspective view showing an appearance of a mobile phone terminal as an example of the operation device, and FIG. 8 is a block diagram showing a main part of the mobile phone terminal.
[0021]
As shown in FIG. 7, the mobile phone terminal 20 of the present embodiment has a case 21 in which a first case 21a and a second case 21b are rotatably connected about a shaft 26 as a fulcrum. The first case 21a is provided with an operation unit 22 in which a plurality of push button type key input units 22a are arranged, and the second case 21b is provided with a display unit 24 formed of a liquid crystal panel. ing. In the mobile phone terminal 20, the surface of the operation unit 22 and the surface of the display unit 24 face each other and are folded into two to be in a non-use state (the second case 21b is indicated by a dashed line). The first case 21a and the second case 21b are set to be in the use state when they are expanded to an angle close to 180 degrees.
[0022]
As shown in FIG. 8, a detection member 25A for detecting an operation by the operation unit 22, a control unit (CPU) 10, and a vibration drive unit (drive IC) 30 are provided in a case 21 of the mobile phone terminal 20. And a vibration generating member 1.
[0023]
The detection member 25 </ b> A is, for example, a film-like member provided on the lower side (back side) of each key input section 22 a constituting the operation section 22. In the control means 10, when an operation is detected by the detection member 25 </ b> A by operating the operation unit 22, a signal processing according to the operation is performed, and a drive signal (drive command) is transmitted from the control means 10. It is output to the vibration driving means 30. Then, in the vibration driving means 30, the vibration generating member 1 is driven based on the drive signal (drive command).
[0024]
Next, an embodiment of the vibration generating member 1 will be described.
As shown in FIG. 1, the vibration generating member 1 includes a cylindrical magnetic case 2 as a support and nonmagnetic covers 3 and 3 attachable to both ends thereof. A shaft 4 made of a non-magnetic material is supported on the inner surfaces of the lids 3, 3, and the axis 4 coincides with an imaginary center line OO passing through the center of the case 2 and the lids 3, 3.
[0025]
A coil 5 is fixed to the inner wall of the case 2. The coil 5 is formed by winding a covered conductor such as an enameled wire in a cylindrical shape, and is slightly shifted from the center of the length of the case 2 in the illustrated X direction toward the lid 3 on one side (X1 side in FIG. 1). Fixed in position.
[0026]
A movable body 6 is provided inside the case 2. The movable body 6 is provided with a non-magnetic weight 7 at one end (X2 side) and a magnet M at the other end (X2 side). Yoke members 8a and 8b made of a magnetic material are provided on both end surfaces of the magnet M. The weight 7, the yoke member 8a, the magnet M, and the yoke member 8b have a columnar or disk shape, and all outer peripheral surfaces are located concentrically with respect to the center of the shaft 4.
[0027]
A hole 6a is formed in the center of the movable body 6, that is, the center of the weight 7, the yoke member 8a, the magnet M, and the yoke member 8b, and the shaft 4 is inserted into the hole 6a. Therefore, the movable body 6 can reciprocate along the axis 4 in the illustrated X direction with a stroke within a predetermined range. Since the shaft 4 is formed of a non-magnetic material, the movable body 6 is not attracted to the shaft 4 by the force of the magnet, and the moving load when the movable body 6 moves along the shaft 4 is reduced. .
[0028]
The outer diameters of the magnet M and the yoke member 8b are smaller than the outer diameters of the weight 7 and the yoke member 8a and smaller than the inner diameter of the coil 5. Therefore, when the movable body 6 moves along the axis 4 in the X1 direction in the drawing, the magnet M and the yoke member 8b can move inside the coil 5.
[0029]
In this embodiment, the magnet M and the coil 5 form a moving magnet type magnetic drive unit. However, a moving coil type magnetic drive unit in which a coil is mounted on the movable body 6 and a magnet facing the coil is provided on the inner peripheral surface of the case 2 may be used.
[0030]
Urging members 9, 9 are provided between both ends of the movable body 6 and the inner surfaces of the lids 3, 3, and the movable bodies 6 are mutually moved along the axial direction by the urging members 9, 9. Receiving a reverse bias. It is preferable that the biasing members 9, 9 have the same spring constant and exert the same elastic force when they have the same axial length. FIG. 1 shows a state in which the coil 5 is not energized. At this time, the movable body 6 receives the urging force from the urging members 9, 9 located on both sides, and moves during the movement stroke. Located at a point.
[0031]
In FIG. 1B, the urging members 9, 9 are conical coil springs. This conical coil spring has the characteristic that the spring constant changes as it undergoes compression deformation. The vibration generating member 1 vibrates the movable body 6 at a natural frequency determined by the spring constant of each of the urging members 9 and 9 and the mass of the movable body 6 in the neutral state shown in FIG. However, when the conical coil spring is used, the spring constants of the conical coil springs on both sides change as the movable body 6 moves in the X1 direction or the X2 direction. Therefore, the natural frequency changes as the movable body 6 moves greatly from the middle point shown in FIG. Thus, it is possible to prevent the movable body 6 from resonating at the natural frequency and moving with a larger amplitude than the stroke that is originally desired to be controlled.
[0032]
That is, the urging members 9, 9 using the conical coil spring have a function of determining a natural frequency based on a spring constant thereof, and serve as a damper that suppresses the movement of the movable body 6 when the stroke becomes large. Functions can also be demonstrated. As the biasing member whose spring constant changes due to the displacement as described above, a coil spring wound at an unequal pitch can be used in addition to the conical coil spring. Alternatively, a damper for suppressing the amplitude of the movable body 6 from becoming excessive may be separately provided inside the lids 3.
[0033]
The magnet M is magnetized such that an end surface Ma contacting the yoke member 8a and an end surface Mb contacting the yoke member 8b have opposite magnetic poles. In the embodiment shown in FIG. 1, the end face Mb is an N pole and the end face Ma is an S pole. In this case, the magnetic flux φ generated by the magnet M is output toward the outer peripheral direction via one of the yoke members 8b, and reaches the case 2 by traversing the coil 5 vertically. Further, the magnetic flux φ is guided to the position facing the other yoke member 8a through the inside of the case 2 formed of a magnetic material, and is output from the position toward the yoke member 8a to reach the S pole of the magnet M. Is formed.
[0034]
As shown in FIG. 1, when the movable body 6 is located at the midpoint of the movement stroke, the midpoint of the width of one yoke member 8a in the X direction is the midpoint of the coil 5 in the winding axis direction. Matches or almost matches.
[0035]
When a current in the direction shown in FIG. 1B is applied to the coil 5 in the neutral state shown in FIG. Driving force. In addition, by applying a reverse current to the coil 5, a driving force in the X1 direction can be applied to the movable body 6.
[0036]
Next, the vibration driving means 30 will be described. FIG. 2 is a partial cross-sectional view showing the opposing relationship between the magnet and the coil, FIG. 3 is a block diagram showing the vibration driving means, and FIG. It is.
[0037]
As shown in FIG. 2, one end (winding end) of the coil 5 is a terminal Ta1, the other end (winding end) is a terminal Ta2, and an intermediate point between the terminals Ta1 and Ta2 (a middle point of the coil 5). ) Is an intermediate terminal Ta3.
[0038]
The vibration driving unit 30 shown in FIG. 3 has a position detecting unit 11, a signal generating unit 12, a driving unit 13, and a central control unit 14 connected to the intermediate terminal Ta3. The drive unit 13 is provided with two output units, one of which is connected to one terminal Ta1 of the coil 5 and the other is connected to the other terminal Ta2 of the coil 5.
[0039]
The signal generation means 12 generates a drive signal S1 based on a command from the central control unit 14 and outputs the drive signal S1 to the drive means 13. The drive current having a predetermined waveform is output from the drive means 13 to the terminal Ta1 Ta2. The signal generation unit 12 stores the drive signals S1 in a plurality of patterns. The drive signal S1 in one of the patterns is selected by a command from the central control unit 14 and given to the drive unit 13. Can be
[0040]
The position detecting means 11 detects that the movable body 6 has reached the neutral position shown in FIGS. 1 and 2, that is, the middle point of the reciprocating stroke. When the detection signal of the middle point detected by the position detection means 11 is given to the signal generation means 12, the signal generation means 12 controls the switching of the current direction of the drive signal S1 based on the detection signal. Is
[0041]
The position detecting means 11 is not essential, but if the position detecting means 11 is provided, the sliding load of the movable body 6 or the like increases, or the elastic force of the urging members 9 changes greatly. Even when the natural frequency of the movable body 6 is greatly changed, the drive signal S1 following the change can be generated.
[0042]
FIG. 4 shows the waveform of the drive signal S1. In this embodiment, the drive signal S1 is given to the coil 5 as a rectangular wave, but the waveform of the drive signal S1 may be a triangular wave or the like. In FIG. 4, the neutral point of the drive signal S1 is indicated by “0”, and at this time, the coil 5 is in a non-energized state. When the drive signal S1 rises in the forward direction, a current flows through the coil 5 from the terminal Ta1 to the terminal Ta2. At this time, a driving force acts on the movable body 6 in the X2 direction. When the driving signal S1 shown in FIG. 4 is in the opposite direction, a current opposite to that described above flows through the coil 5, and at this time, a driving force is applied to the movable body 6 in the X1 direction.
[0043]
As shown in FIG. 4, the drive signal S1 includes an accumulation signal S1a. The accumulation signal S1a causes the movable body 6 to excite resonance vibration based on its natural frequency. The accumulation signal S1a includes excitation signals A1, A2, and A3, and a forward current is applied to the coil 5 by the excitation signals A1, A2, and A3. In FIG. 4, the levels of the excitation signals A1, A2, and A3 are constant, and a constant amount of current is intermittently applied to the coil 5 by the excitation signals.
[0044]
FIG. 4 shows a waveform of the drive signal S1 and a vibration waveform in which the vertical axis represents the displacement amount of the movable body 6 in the X1 direction and the X2 direction. Om in the vibration waveform means that the movable body 6 is located at the midpoint shown in FIGS. In both the waveform diagram of the drive signal S1 and the diagram showing the displacement amount of the movable body 6, the horizontal axis is time t.
[0045]
The natural frequency (resonance frequency) of the movable body 6 is determined by the mass of the movable body 6 and the spring constant of the biasing members 9 (spring constant in the neutral state shown in FIG. 1). However, the excitation signals A1, A2, A3 are given for each cycle T, which is the reciprocal of the natural frequency (resonance frequency), and the energization time is half of the cycle T. That is, the excitation signals A1, A2, and A3 are given when the movable body 6 has a velocity in the X2 direction. When the excitation signals A1, A2, and A3 are given to the coil 5, the excitation signals A1, A2, and A3 are given in the X2 direction. The driving force in the X2 direction is further applied to the movable body 6 having the speed of. The excitation signal A1 is a start signal.
[0046]
Due to the excitation signals A1, A2, A3, the movable body 6 starts to vibrate, and the amplitude of the vibration due to the natural frequency increases with time.
[0047]
In the storage signal S1a of the embodiment of FIG. 4, the reverse excitation signals B1, B2 are included between the adjacent excitation signals A1, A2, A3. By the reverse excitation signals B1 and B2, a current in the opposite direction to the excitation signal A is supplied to the coil 5. The reverse excitation signals B1 and B2 are applied to the coil 5 when the movable body 6 has a speed in the X1 direction, and further a driving force in the X1 direction is applied to the movable body 6.
[0048]
By thus alternately supplying the excitation signal A and the reverse excitation signal B, the amplitude of the movable body 6 rapidly increases in a short time.
[0049]
Note that the accumulation signal S1a does not necessarily need to include the excitation signal A and the reverse excitation signal B. Even if only the excitation signal A or the reverse excitation signal B is generated, the movable body 6 is caused to vibrate. It is possible to increase the amplitude. In this case, it is possible to sharply increase the amplitude by increasing the current amount of the excitation signal A or the reverse excitation signal B.
[0050]
Further, the excitation signal A and the reverse excitation signal B are supplied only during the first period of the period in which the accumulation signal S1a is supplied, and thereafter, the amplitude is maintained by resonance of the movable body 6 without supplying current to the coil for a while. It is possible to do.
[0051]
Here, the increase of the amplitude is maximized when the driving direction and the moving direction of the movable body 6 are aligned and the frequency matches the resonance frequency.
[0052]
As a method of controlling the increase rate (decrease rate) of the amplitude, there are a method of changing the input energy and a method of shifting the drive signal S1. The former method of changing the input energy includes controlling by changing the amplitude of changing the magnitude of the driving current (or driving voltage) applied to the coil 5 and PWM (changing the energizing time of the driving current (or driving voltage)). Pulse width modulation (Pulse Width Modulation) control. As the latter method of shifting the drive signal S1, there are a method of shifting the phase and a method of shifting the frequency.
[0053]
In the PWM control, for example, in the accumulation signal S1a, the time for which the excitation signal A is given is made shorter than half the period T, and the excitation is set to 0 for the remaining time, thereby increasing the amplitude of the movable body 6. Can be controlled so as not to be excessive.
[0054]
In the phase shift, the excitation signal A is advanced or delayed slightly from the reference time without changing the pulse width (time interval) of the signal, so that the increase in the amplitude of the movable body 6 does not become excessive. It is possible to control.
[0055]
Further, in the frequency shift, the driving frequency of the movable body is made twice as high as the resonance frequency, and the frequency is shifted from a low frequency to a high frequency, or moved in the opposite direction, or the shifted frequency is matched with the resonance frequency, In addition, by performing an operation of shifting from the coincident state, it is possible to control the increase in the amplitude of the movable body 6 so as not to be excessive. In this method, the excitation efficiency changes and the phase shifts, so that it is possible to provide an excitation section and a suppression section.
[0056]
The drive signal S1 includes an attenuation signal S1b. This attenuation signal S1b includes suppression signals C1, C2, and C3. The periods of the suppression signals C1, C2, and C3 are shifted from the excitation signals A1, A2, and A3 by 180 degrees, and when the movable body 6 has a speed in the X1 direction, the coil 5 has a forward direction. , A driving force is applied to the movable body 6 in the X2 direction opposite to the speed direction. Thereby, the vibration of the movable body 6 vibrating at the natural frequency is attenuated.
[0057]
In FIG. 4, reverse suppression signals D1 and D2 are provided between the suppression signals C1, C2 and C3, and a current in the reverse direction is supplied to the coil 5 by the reverse suppression signals D1 and D2. By the reverse suppression signals D1 and D2, a driving force in the X1 direction for canceling the speed is given to the movable body 6 having the speed in the X2 direction. By alternately providing the suppression signal C and the reverse suppression signal D, the amplitude of the movable body 6 abruptly attenuates.
[0058]
Note that only one of the suppression signal C and the reverse suppression signal D may be provided in the attenuation signal S1b. Further, the suppression signal C and the reverse suppression signal D may be provided only in the first half of the attenuation signal, or the periods of the suppression signal C and the reverse suppression signal D may be gradually shifted.
[0059]
FIG. 5 shows a vibration waveform of the movable body 6 when the accumulation signal S1a and the attenuation signal S1b are made continuous and a signal obtained by combining the accumulation signal S1a and the attenuation signal S1b is given with a period Te. In FIG. 5, the number of excitation signals A1, A2, A3 in the accumulation signal S1a and the number of suppression signals C1, C2, C3 in the attenuation signal S1b are the same, and the excitation signals A1, A2, A3 and the suppression signal The amount of current applied to the coil 5 is the same for C1, C2, and C3. Further, the number of the reverse excitation signals B1, B2, B3 and the number of the reverse suppression signals D1, D2, D3 are the same, and the amount of current applied to the coil is the same for the reverse excitation signal and the reverse suppression signal. The time lengths of the accumulation signal S1a and the attenuation signal S1b are also the same.
[0060]
In FIG. 5, the movable body 6 vibrates at a natural frequency (resonance frequency), and the amplitude of the accumulated signal S1a increases with time, and the amplitude of the damped signal S1b decreases. In FIG. 5, a line connecting the vertexes of the amplitude of the movable body 6 is shown as an envelope E. The envelope E increases or decreases according to the period Te of the accumulation signal S1a and the attenuation signal S1b. The frequency fe is 1 / Te.
[0061]
The mass of the movable body 6 is small, so that the natural frequency (resonance frequency) increases. However, the frequency fe of the envelope E can be set lower than the resonance frequency, so that the intensity of vibration can be changed. This change in the intensity of the vibration has a characteristic that it is easy to sense as a change in the sense of pressure (pain). Further, the frequency fe of the envelope E is in a frequency band in which a person can effectively sense vibration, so that a person can effectively sense vibration.
[0062]
The vibration of the envelope E shown in FIG. 5 is generated by using the small vibration generating member 1 having a small mass of the movable body 6 and a high natural frequency, and the frequency of the envelope E is set to a value that can be felt by a person. Then, the person feels the waveform of the envelope E as vibration.
[0063]
By changing the repetition period of the set of the accumulation signal S1a and the attenuation signal S1b in the drive signal S1, the period and frequency of the envelope E that can be sensed by a person can be freely changed. Also, the amplitude of the envelope E can be changed by changing the number and the current amount of the excitation signal A and the reverse excitation signal B, and changing the number and the current amount of the suppression signal C and the reverse suppression signal D.
[0064]
In the operating device according to the present embodiment, the natural frequency (resonance frequency) when the movable body 6 is vibrated is set to be high and vibrated for a short time, and as shown by reference numeral E1 (or E2) in FIG. By obtaining the envelope, a person can feel this vibration as a pseudo click feeling.
[0065]
The envelopes E1 and E2 are waveforms obtained by reciprocating the movable body 6 a plurality of times as shown in FIG. 5, but by oscillating the movable body 6 at a high natural frequency, amplification of the amplitude of vibration and All the attenuations are so steep that a person can experience only a single touch. Although the vibration itself is in the audible range, the sound is extremely low because the urging member 9 expands and contracts only several times.
[0066]
Therefore, by causing the mobile phone terminal 20 to experience a simulated click feeling, a plate material such as a diaphragm, which has been conventionally used for giving a click feeling, becomes unnecessary, and the device can be made thinner. No sound is generated due to the deformation of the device, and the quietness of the device is improved.
[0067]
Further, the mobile phone terminal 20 shown in FIG. 7 is provided with a detection member 25C for detecting that the case 21 has been deformed from the non-use state to the use state. The control means 10 shown in FIG. 8 performs signal processing according to the operation when the detection is performed by the detection member 25C, generates a drive signal (drive command), and generates the drive signal (drive command). The vibration is transmitted to the vibration driving means 30, and the vibration generating member 1 is driven. In the present embodiment, since the case 21 is vibrated in synchronization with the state where the case 21 is expanded to the maximum, it is possible to reliably recognize that the mobile phone terminal 20 has reached the use state.
[0068]
As shown in FIG. 9, the vibration driving means 30 may perform signal processing according to the operation of the detection member 25A by detecting the detection member 25A, and then drive the vibration generation member 1. Thereby, the processing load on the control means (CPU) 10 can be reduced. Further, the control means 10 and the vibration driving means 30 may be formed by an integrated IC circuit or the like to drive the vibration generating member 1.
[0069]
Further, the control means 10 generates a drive signal (drive command) each time each key input section 22a is pressed, and drives the vibration generating member 1 so that a person can experience a pseudo click feeling. Good.
[0070]
Further, the control means 10 determines whether or not the operation on the operation section 22 is correct, and when it is determined that the operation on the operation section 22 is incorrect, the vibration means in the sense of giving a warning. May be generated.
[0071]
Further, the portable telephone terminal 20 is provided with a communication means capable of communicating or talking via a wireless medium. In the case where such a communication means is provided, a function of notifying an incoming call is provided. I have. As a function of notifying the incoming call, a function (manner mode) of notifying by vibration instead of sound is mounted. In the embodiment shown in FIG. 7, a detection member for detecting that there is an incoming call is provided in the control means 10, and a drive signal (drive command) for driving the vibration generating member 1 is generated in the control means 10. You may. In this way, by combining the function of notifying the incoming call with vibration and the function of giving a click feeling when operating the operation unit 22, the number of components can be reduced, and the manufacturing cost can be reduced.
[0072]
Further, in the present embodiment, it is also possible to control the waveform of the envelope E, as shown in FIG.
[0073]
In the driving example of FIG. 6, the accumulation signal S1a has the excitation signal A and the reverse excitation signal B alternately, but the attenuation signal S1b is only the suppression signal C and does not have the reverse suppression signal D. In this case, the envelope E has a shape that rises rapidly and converges gently. As described above, the vibration generating member 1 may be controlled by the vibration driving means 30 so that the waveform shown in FIG. 6 is formed, so as to generate a single feedback vibration similar to a click feeling.
[0074]
In addition to this example, the waveform of the envelope E can be controlled by changing the contents of the accumulation signal S1a and the attenuation signal S1b. By changing the waveform of the envelope E in this way, it is possible to arbitrarily generate a vibration that a person feels sensitive or a vibration that makes a person feel dull and heavy.
[0075]
In FIG. 2, when the center in the width direction of the yoke member 8b moves in the X1 direction between the terminal Ta1 and the intermediate terminal Ta3, the position where the magnetic force lines generated from the yoke member 8b intersect the coil 5 moves. The back electromotive force (voltage) Va is induced between the terminal Ta1 and the intermediate terminal Ta3. Also, when the center in the width direction of the yoke member 8b is also moving in the X1 direction between the intermediate terminal Ta3 and the terminal Ta2, the back electromotive force (voltage) Vb is generated between the terminal Ta2 and the intermediate terminal Ta3. Is induced. Similarly, when moving in the X1 direction, when the line of magnetic force generated from the yoke member 8b coincides with the intermediate terminal Ta3, the back electromotive force Va and the back electromotive force Vb induced between the terminals become equal. . When the moving direction of the movable body 6 changes in the X2 direction, the polarities of the back electromotive forces Va and Vb induced in the coil 5 are opposite to those when the movable body 6 moves in the X1 direction.
[0076]
At the position of the maximum amplitude in the X1 and X2 directions at which the movement of the movable body 6 stops, the line of magnetic force generated from the yoke member 8b does not change with time, so the back electromotive force Y becomes zero.
[0077]
Therefore, the position detecting means 11 detects the timing of the switching between the back electromotive force Va and the back electromotive force Vb, so that the center of the yoke member 8b in the width direction coincides with the intermediate terminal Ta3, And the maximum amplitude point can be detected. Then, the resonance frequency of the movable body 6 is tracked by setting the timing of generation of the excitation signal A, the reverse excitation signal B, the suppression signal C, and the reverse suppression signal D using the detection time point as described above. The drive signal S1 can be generated.
[0078]
Thus, by changing the shape of the envelope or changing the number of vibrations, the type of vibration can be changed.
[0079]
Therefore, in the mobile phone terminal 20 shown in FIG. 7, the vibration driving unit 30 can control the type of vibration for each key input unit 22a of the operation unit 22.
[0080]
The operation device according to the present embodiment is not limited to a mobile phone terminal, but may be applied to a PDA (personal digital assistant), a game controller, a computer input device, an ATM (automatic teller machine), and the like. it can. Alternatively, the present invention may be applied to a push-button switch for turning on and off a light or the like.
[0081]
For example, when the operating device is a pad-type coordinate input device used in, for example, a notebook computer, the above-described vibration caused by a simulated click feeling is generated when a pad surface is pressed (tapped), for example. Can be done. Further, in the case of a mouse-shaped input device of a computer, vibration may be generated in response to operation of a push button provided on a mouse-shaped case.
[0082]
Further, the operation device may be a touch panel type used for an ATM (Automatic Teller Machine) of a financial institution. However, when the touch panel type operation unit is large, the operation unit of the touch panel is divided into a plurality of sections, the vibration generating members 1 are installed in each section, and each vibration generating member 1 is The control may be performed so that the click feeling can be reliably transmitted.
[0083]
Although FIG. 7 illustrates the foldable mobile phone terminal 20, the present invention is not limited to this, and may be a mobile phone terminal configured with a case that is elastically connected. In this case, When the case is deformed from the non-use state to the use state, the vibration generation member 1 is driven to obtain a pseudo click feeling when the case is deformed from the non-use state to the use state. Is also good.
[0084]
【The invention's effect】
As described above, according to the present invention, it is possible to cause a person to experience a vibration due to a pseudo click feeling without producing a sound. Further, for example, when the device is provided in a mobile phone terminal, the device can be made thinner.
[Brief description of the drawings]
FIG. 1 shows an embodiment of a vibration generating member, wherein A is a perspective sectional view, B is a sectional view,
FIG. 2 is a partial cross-sectional view showing a facing relationship between a magnet and a coil;
FIG. 3 is a block diagram illustrating a vibration driving unit.
FIG. 4 is a diagram illustrating an example of a drive signal applied to a coil and vibration of a movable body at that time.
FIG. 5 is a diagram showing a relationship between a signal that is a set of an accumulation signal and an attenuation signal and a vibration waveform of a movable body;
FIG. 6 is a diagram showing an example of controlling the vibration waveform of the envelope;
FIG. 7 is a perspective view showing a foldable mobile phone device as an example of the operation device of the present invention;
FIG. 8 is a block diagram showing an operation device.
FIG. 9 is another block diagram showing the operation device;
[Explanation of symbols]
1 Vibration generating member
2 cases
4 axes
5 coils
6 movable body
7 weight
8a, 8b yoke member
9 urging member
10 control means
11 Current detection means
12 Signal generation means
13 Drive means
14 Central control unit
20 mobile phone terminals
21 cases
22 Operation section
22a Key input section
23 control means
25A, 25B, 25C detection member
30 Vibration driving means
A, A1, A2, A3 Excitation signal
B, B1, B2 Reverse excitation signal
C, C1, C2, C3 suppression signal
D, D1, D2 Reverse suppression signal
E envelope
S1 drive signal
S1a accumulation signal
S1b Decay signal
Ta1, Ta2 terminals
Ta3 intermediate terminal
M magnet

Claims (10)

An operation unit for performing a predetermined input; and a vibration generating member, wherein when an operation of the operation unit is detected, the vibration generating member is operated to output a vibration in accordance with an operation timing of the operation unit. An operating device characterized in that the operating device is operated. The operating device according to claim 1, wherein the vibration generating member has a movable body, and a change obtained by connecting vertexes of a waveform amplitude when the movable body is vibrated is defined as an envelope, and the envelope is sensed as the vibration. . A detection member that detects an operation of the operation unit, and a control unit that performs a signal process according to the operation when the operation is detected by the detection member and generates a drive signal for generating vibration is provided, The operating device according to claim 1, wherein the vibration generating member is operated by the drive signal output from the control unit. A detection member for detecting an operation of the operation unit, a control unit for performing signal processing according to the operation when the operation is detected by the detection member, and a detection signal from the detection member independently of the control unit 3. The operating device according to claim 1, further comprising a vibration driving unit that receives the vibration, and wherein the vibration generating member is operated by the vibration driving unit. 4. An operation unit having one or two or more press-type key input units is provided. Each time the key input unit is operated, the vibration generating member is driven, and the operation of the key input unit is performed. The operating device according to claim 1, wherein a pseudo click feeling is given by the vibration. The operation device according to claim 5, wherein the type of the vibration is switched based on an input pattern of the key input unit. 4. The operating device according to claim 3, wherein the control means determines whether or not the operation of the operation unit is correct, and the vibration indicating the warning occurs when it is determined that the operation of the operation unit is incorrect. . The operating device according to any one of claims 1 to 7, further comprising communication means capable of communicating or communicating via a wireless medium, wherein the vibration generating member is provided with a function of notifying an incoming call. A vibration generating member is provided in a case whose shape changes between a use state and a non-use state, and a detection member for detecting that the case has changed from the non-use state to the use state is provided. An operating device, wherein the vibration generating member is driven in response to detection of a member. The operating device according to claim 9, wherein the vibration generating member has a movable body, and a change obtained by connecting vertexes of a waveform amplitude when the movable body is vibrated is defined as an envelope, and the envelope is sensed as the vibration. .

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