KR101094640B1 - haptic wheel, security input device using the same, a method for haptic interface, and a method for inputting security code using the same - Google Patents

Abstract

A tactile wheel, a security input device using the same, a tactile interface method, and a security input method using the same are provided.

The tactile wheel according to the present invention is a rotatable wheel, the rotation angle measuring means for measuring the rotation angle of the wheel; An actuator configured to generate a tactile signal assigned to the angle range and feed back to the user when the measured rotation angle of the wheel corresponds to a predetermined angle range; And an input means for inputting the tactile signal fed back to the user as an input signal, and the tactile interface device according to the present invention generates a tactile signal corresponding to an angle change that is changed through rotation of the wheel and feeds it back to the user. By rotating the wheel to virtually infinity, the desired tactile signal can be retrieved freely. In addition, since a desired tactile signal is fed back by the user and newly inputs a tactile signal to the angular range of the wheel after input, the user can receive a new tactile signal reassigned according to the angular range when the user rotates the wheel again. . Therefore, since the tactile signal assigned to the wheel cannot be recognized by visual information about the wheel from the outside, security is improved.

Description

Haptic wheel, security input device using the same, a method for haptic interface, and a method for inputting security code using the same}

The present invention relates to a tactile wheel, a security input device using the same, a tactile interface method, and a security input method using the same. More specifically, the haptic wheel generates a tactile signal corresponding to a change in angle changed through rotation of the wheel and feeds it back to the user. By rotating the wheel to virtually infinity, the desired tactile signal can be retrieved freely. In addition, since the desired tactile signal is fed back by the user and newly inputs the tactile signal to the angle range of the wheel, when the user rotates the wheel again, the user can receive the new tactile signal reassigned according to the angle range. The present invention relates to a tactile wheel, a security input device using the same, a tactile interface method, and a security input method using the same.

In general, in the case of a passcode input method used in a public place or a place where other people can see, a passcode is input on a keypad displaying a number. However, the method of entering a passcode in a public place or a place where others can see it is dangerous in many ways, because it is easy for others to distinguish the passcode you enter, Because it is left.

Therefore, there is a need for a new interface technology that can maintain sufficient security even when used in a public place and allows a user to easily enter a passcode.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a new device capable of a new haptic interface capable of achieving security and user input ease at the same time.

Another object of the present invention is to provide a new tactile interface method capable of simultaneously achieving security and user input usability.

Another object of the present invention is to provide a security device and a security input method that can achieve both security and user input ease.

In order to solve the above problems, the present invention is a rotatable wheel, the rotation angle measuring means for measuring the rotation angle of the wheel; An actuator configured to generate a tactile signal assigned to the angle range and feed back to the user when the measured rotation angle of the wheel corresponds to a predetermined angle range; And input means for inputting the tactile signal fed back to the user as an input signal.

In an embodiment of the present invention, the angular range is plural, and the tactile signals assigned to each of the angular ranges are distinguished from each other according to a predetermined pattern, and in one embodiment of the present invention, the predetermined pattern is a frequency, a vibration intensity, or a vibration. It's time.

The tactile signal has a pattern that continuously increases or decreases as the wheel rotates, and the pattern repeats with respect to a predetermined angle as the wheel rotates, and the tactile wheel according to the present invention provides a feedback signal as an input signal. After input, the controller may further include a control unit for reassigning the tactile signal allocated to the angle range of the wheel. The reallocation of the tactile signal by the controller is performed by reassigning the tactile signal assigned to one angle range to an arbitrary angle range among the plurality of angle ranges of the wheel, and the reallocation of the tactile signal by the controller is performed. The tactile signal assigned to the angular range is moved to another angular range spaced by a predetermined interval.

The input means may be an input button provided at the center of the wheel.

In order to solve the above another problem, the present invention provides a security input device comprising the tactile wheel described above.

In order to solve the above further problem, the present invention provides a tactile interface method using a rotatable wheel, the method comprising: assigning tactile signals to a plurality of unit sectors for dividing the wheel into a predetermined angular range; Generating a tactile signal of a unit sector in an angular range corresponding to a rotation angle generated according to the rotation of the wheel, and feeding it back to the user; And inputting any one of the feedback tactile signals as an input signal.

The plurality of tactile signals assigned to the plurality of unit sectors may be distinguished from each other on the basis of frequency, vibration time, or vibration intensity, and the plurality of tactile signals assigned to the unit sector may be generated according to the rotation of the wheel. Or aligned in such a way that the vibration intensity increases or decreases.

According to an embodiment of the present invention, the tactile interface method may further include changing a tactile signal allocated to the unit sector after the input step, wherein the change of the tactile signal may be performed by applying a tactile signal allocated to the unit sector. It may be performed in a manner of moving by a predetermined interval.

In order to solve the above problems, the present invention provides a security input method using a rotatable wheel, comprising the steps of: (a) setting a plurality of digits passcode based on the tactile signal distinguished from each other according to a predetermined criterion; (b) continuously feeding back a tactile signal assigned to the unit sector by rotating a wheel including a plurality of unit sectors each of which is divided into a predetermined angular range and to which a tactile signal is assigned; (c) a user inputting one of the feedback tactile signals as an input signal of a passcode; And (d) when the input tactile signal and the tactile signal of the set passcode match each other, enter a passcode input step of a next digit. Each of the tactile signals assigned to the plurality of sectors is a vibration signal, and the vibration signals may have different patterns.

In addition, when the input tactile signal and the tactile signal of the set pass code do not match with each other, the tactile signal pattern may be changed as the wheel is rotated without entering the next pass code input step. In one embodiment of the present invention, the tactile signal of the predetermined reference is repeated according to the rotation of the wheel, and after step (d), the tactile signals allocated to the plurality of unit sectors may shift to different unit sectors. have. In addition, the tactile signal allocated to the unit sector in the moving step may move to another unit sector spaced by a predetermined interval determined in an arbitrary manner.

Since the tactile interface device according to the present invention generates a tactile signal corresponding to the angular change that is changed through the rotation of the wheel and feeds it back to the user, the tactile interface device can freely search for a desired tactile signal by rotating the wheel indefinitely. In addition, since a desired tactile signal is fed back by the user and newly inputs a tactile signal to the angular range of the wheel after input, the user can receive a new tactile signal reassigned according to the angular range when the user rotates the wheel again. . Therefore, since the tactile signal assigned to the wheel cannot be recognized by visual information about the wheel from the outside, security is improved.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and examples. However, the following contents are for illustrating the present invention, and the scope of the present invention is not limited according to the following contents.

As described above, the tactile interface device of the new concept according to the present invention is in the form of a wheel, and generates a tactile signal assigned to the angle range when the rotation angle generated when the wheel is rotated corresponds to a preset angle range. , Feedback to the user. That is, while the user rotates the wheel, the user searches for a tactile signal of various patterns assigned to a plurality of angular ranges, and inputs any one of the feedbacked tactile signals as an input signal.

Hereinafter, the tactile interface device according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view of a tactile wheel according to an embodiment of the present invention.

Referring to FIG. 1, the tactile wheel 100 has a circular shape, and the wheel includes a plurality of angular ranges 110 that divide the wheel by a predetermined angle. The tactile wheel 100 of the present invention is circular, but in addition to various shapes can be used, the scope of the present invention is not limited to the form shown in FIG.

As used herein, the "angle range" refers to an angular region that divides the rotatable wheel 100 into an angle of a predetermined size. In the present invention, a tactile signal of a predetermined pattern is assigned to each of the angular ranges. The tactile signals are distinguishable from each other. Here, the tactile signal is a term including all kinds of tactile signals that can be felt by the user. For example, a vibration signal by an actuator is an example of such a tactile signal. In addition, the tactile signal pattern to be distinguished means a tactile signal having a pattern of a level that can be perceived by the user cognitively different from each other, for example, different vibration time, frequency, vibration interval, vibration intensity in the vibration tactile signal Such a tactile signal pattern may be used, and the user may cognitively distinguish each of the plurality of tactile signals according to the pattern.

The present invention compares the angle range in which the wheel is divided into a predetermined size and the rotation angle generated when the user rotates the wheel, and assigns the angle range according to the angle range corresponding to the rotation angle (ie, matching). To generate a tactile signal.

Accordingly, a tactile signal of a predetermined pattern is previously assigned to the angle range for dividing the wheel. In one embodiment of the present invention, the pattern of the tactile signal is allocated and arranged in a manner of continuously increasing or decreasing according to the rotation of the wheel. Can be.

That is, the tactile signal pattern assigned to one of the angular ranges for dividing the wheel is clearly distinguished from the tactile signal pattern assigned to another angular range adjacent to the clockwise direction. The frequency can be distinguished by increasing or decreasing. Thus, the predetermined pattern of tactile signals assigned to the angular ranges increases or decreases continuously as the user rotates, and the present invention allows the user to, through the configuration, the tactile sensation assigned to the next angular range by rotating the wheel. The pattern of the signal can be retrieved and also predicted.

As such, in one embodiment of the present invention, the tactile padback signal is aligned in such a manner that the pattern of the tactile signal increases or decreases as the wheel is rotated, and the aligned tactile pattern is repeated as the predetermined angle is rotated.

Hereinafter, the tactile wheel according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2A and 2B are front views of tactile wheels according to one embodiment of the invention.

Referring to FIG. 2A, the tactile wheel according to the present invention includes a plurality of unit sectors 110a, 110b, 110c, 110d, 110e, and 110f for dividing a circular wheel into a predetermined angle range. In one embodiment of the present invention, the unit sectors are in the form of distinguishable pizza slices, but the shapes may be understood as angular ranges for generating various patterns of tactile signals according to the rotation angle of the wheel.

In FIG. 2A, the unit sectors 110 are divided into six, and six kinds of tactile signals t1, t2, t3, t4, t5, and t6 are allocated to the unit sectors according to predetermined criteria. In one embodiment of the present invention, the tactile signal is a vibration signal, and the criterion for distinguishing the tactile signal is the frequency.

In FIG. 2A, the angular range of the unit sectors for dividing the wheel is 60 degrees, and six types of tactile signals having different frequencies are assigned to respective angular ranges divided based on the angular range of 60 degrees. According to the corresponding wheel rotation angle, a tactile signal assigned to the angle range is generated and fed back to the user. In contrast, in FIG. 2B, six unit sectors 110 are allocated, but each unit sector may be allocated in such a manner that a tactile signal having three types of patterns is repeated. That is, in FIG. 2A, six types of tactile signal patterns are repeated based on 360 degrees, and in FIG. 2B, tactile signal patterns are repeated based on 180 degrees. That is, when the user rotates the haptic wheel according to the present invention continuously, the pattern of the tactile signal is also repeated. Through the repeated configuration of the tactile pattern, the user can expect a tactile signal fed back upon two rotations only with the experience of the first single rotation of the wheel.

As described above, the tactile signals allocated to the angular range of the tactile wheel according to the present invention can be distinguished from each other according to a predetermined criterion such as the frequency or the vibration intensity, and the magnitudes of the vibration or the vibration intensity are changed according to the wheel rotation. It is arranged in a continuous increasing or decreasing manner. For example, when the reference is a frequency, a t1 vibration signal vibrating once for the same time in the first unit sector 110a and a t2 signal vibrating twice in the second unit sector 110b, a third unit sector The t3 signal oscillating three times is assigned to 110c, and the t4 tactile information oscillating four times is allocated to the fourth unit sector 110d. In the tactile wheel having such a configuration, when the user rotates the wheel in the clockwise direction, the tactile signal of the increasing frequency can be fed back when the user rotates the counterclockwise direction.

3A to 3C are diagrams illustrating a process in which a user receives feedback of a tactile signal according to one embodiment of the present invention.

Referring to FIG. 3A, the wheel 100 includes angle ranges consisting of six pizza slice unit sectors 110 dividing a circle at 60 degrees, as described above. Tactile signals of patterns that are divided according to predetermined criteria are respectively assigned. The wheel 100 is rotatable, and the wheel 100 is provided with rotation angle measuring means (not shown) for measuring the rotation angle of the wheel. In one embodiment of the present invention, the rotation angle measuring means was each encoder, but the scope of the present invention is not limited thereto.

Referring to FIG. 3B, the user rotates the wheel 100 clockwise or counterclockwise, and the rotation angle measuring means provided in the wheel measures the rotation angle according to the rotation. If the wheel rotation angle is set based on one point or one area of the wheel's 12 o'clock position (dark area in the figure), the unit sector at the initial 12 o'clock position as the wheel is rotated counterclockwise. (I.e., the region to which the vibration pattern of t1 is assigned) moves to a reference sector adjacent to the unit sector (that is, the region to which the vibration pattern of t6 is assigned) in the counterclockwise direction. That is, the wheel rotation angle measured as the reference area of the rotatable wheel 100 moves from the unit sector t1 to the adjacent unit sector corresponds to a level of 60 degrees in the counterclockwise direction, and thus corresponds to the rotation angle range. The tactile signal t6 is generated and fed back to the user.

As another example, the tactile signal allocated to the unit sector in which the point moves based on one point of the wheel set as an initial reference may be generated as a tactile signal corresponding to the rotation angle of the wheel. For example, in FIG. 3B, one point of the wheel in which the 12 o'clock direction is located in the unit sector becomes a reference point, and the reference point moves to an adjacent unit sector, that is, a region to which the tactile pattern of t6 is allocated. The tactile pattern may be generated and fed back to the user. This configuration of the present invention also corresponds to the generation of the tactile signal according to the rotation angle of the wheel and the corresponding angle range.

Referring to FIG. 3C, the user may rotate the wheel clockwise rather than counterclockwise. For example, the wheel may be rotated clockwise by 60 degrees to move one point belonging to the initial t1 sector to the t2 sector. have. In this case, the wheel rotates by 60 degrees in the clockwise direction, and as a result, a predetermined tactile signal corresponding to the rotational angle of 60 degrees in the clockwise direction can be generated and fed back to the user. As described above, the tactile signals generated according to different directions and angles of rotation of the wheels are tactile signals having different patterns.

The tactile wheel according to the present invention is assigned a different tactile signal according to a plurality of angular ranges for dividing the wheel at a predetermined angle as described above, and the user rotates the tactile wheel according to the embodiment according to the angular range. The tactile signals of the various patterns assigned to each other are fed back. The tactile wheel according to the present invention may further include an input means for inputting any one of the feedback tactile signals as an input signal. The tactile wheel according to an embodiment of the present invention will be described with reference to the following drawings. It explains in detail.

4 is a block diagram of a tactile wheel according to an embodiment of the present invention.

Referring to FIG. 4, the tactile wheel according to the present invention supports an upper wheel 410 rotatable by a user and an upper wheel 410, and a lower wheel 420 connected to a rotation shaft 430 at a center thereof. . The rotary shaft 430 is interpolated to the upper wheel 410, and rotates in conjunction with the rotation of the upper wheel 410. The tactile wheel according to an embodiment of the present invention includes each encoder unit 440 for measuring the rotation angle of the rotating shaft 430 to rotate in conjunction with the rotation of the upper wheel 410. The angular encoder measures an angle of rotation of the rotating shaft and transmits it to the controller 450 connected to the wheel. The controller 450 transmits a driving signal corresponding to the transmitted angle of the actuator 460. ). The actuator 460 vibrates in a pattern corresponding to an electrical signal transmitted from the control unit as a vibration actuator, whereby the user receives the vibration signal as a tactile signal.

In addition, an input button 470 having a predetermined size is provided at the center of the upper wheel 410 of the tactile wheel 400 according to an embodiment of the present invention, and the user finally feedbacks by pressing the input button 470. The tactile signal can be determined and input as an input signal.

5A and 5B are front and side views, respectively, of a tactile wheel made in accordance with one embodiment of the present invention.

Referring to FIG. 5A, the tactile wheel 500 according to an embodiment of the present invention includes a central input button 510 and a rotary actuator 520. In addition, referring to Figure 5b, in one embodiment of the present invention, each of the encoders 530 for measuring the rotation angle of the upper wheel does not appear to the outside of the wheel assembly, provided in the lower portion of the wheel rotates in conjunction with the rotation of the upper wheel The rotation angle of the rotating shaft is measured.

The control unit according to the present invention serves to change and reassign each tactile signal allocated to a plurality of angular ranges after a tactile signal of a predetermined pattern is input as an input signal. Explain.

6A to 6E illustrate a process of generating a predetermined tactile signal using the tactile wheel according to an embodiment of the present invention, inputting the same, and then reassigning a newly changed tactile signal to an angular range.

Referring to FIG. 6A, a tactile wheel in which a t1 sector, that is, a sector to which a tactile signal of t1 is assigned, is placed in the 12 o'clock direction is disclosed. The tactile wheels are divided into first to sixth angular ranges in a clockwise direction, and different tactile signals t1 to t6 are assigned to each angular range.

Referring to FIG. 6B, the user rotates the tactile wheel counterclockwise, so that the t2 sector of the tactile wheel is in the 12 o'clock direction and the t1 sector is rotated by 60 degrees in the counterclockwise direction. According to the rotation angle, a t2 tactile signal assigned to the t2 sector is generated and fed back to the user. That is, in one embodiment of the present invention, a tactile signal corresponding to the predetermined point of the wheel, that is, the sector placed in the 12 o'clock direction, is generated.

The user inputs the fed back t2 tactile signal as an input signal, and as shown in FIG. 6C, the t2 tactile signal finally generated is determined as an input signal by pressing an input button provided at the center of the wheel.

Referring to FIG. 6D, after the input signal is determined, a tactile signal pattern allocated to a unit sector for dividing the wheel into an angular range of a predetermined size is changed. (In this case, two steps clockwise). As a result, the tactile signal assigned to each angular range is changed, and as a result, the tactile signal generated according to the rotation angle of the wheel cannot be predicted at all by the user who previously rotated the wheel. Therefore, only the user who rotates the wheel can know the movement of the angular range of the tactile signal through experience, thereby improving the security. In another embodiment of the present invention for further improving the security, the degree of movement of the tactile signal pattern in the moving step (how many times the tactile signal is allocated to the angular range) is not fixed. Can be selected in random manner and changed. For example, after the first input, the same tactile pattern is moved and reassigned to an angular range separated by the second to the right, and after two inputs, the same tactile pattern may be moved to another angular range adjacent to the left.

Referring to FIG. 6E, the user rotates the wheel 60 degrees counterclockwise in the same manner as in FIG. 6B, wherein a t1 tactile signal assigned to the t1 sector placed at 12 o'clock according to the rotation 60 degrees counterclockwise is generated. , Is fed back to the user. That is, according to the reassignment of the tactile signal assigned to the angle range of the wheel, even if the same rotation angle of the wheel occurs, a different pattern of tactile signal is generated. do.

The present invention provides a security input device using the tactile wheel described above. In particular, the security input device using the wheel according to the present invention is very excellent in security because the tactile pattern assigned at the time of input changes continuously and moves.

Hereinafter, a tactile interface method according to an embodiment of the present invention that can be used for the security input device and the like will be described with reference to the accompanying drawings.

7 is a step diagram of a tactile interface method according to an embodiment of the present invention.

Referring to FIG. 7, the tactile interface method uses a rotatable wheel, and first starts by allocating tactile signals to a plurality of angular ranges of dividing the wheel into predetermined sizes (S100). The allocating step may be set automatically or set by a user. However, as described above, in order to generate the tactile signal of the difference plate pattern according to the rotation of the wheel, the tactile patterns distinguished from each other should be set for each angle range matched with the rotation angle.

Subsequently, a tactile signal assigned to a unit sector in an angular range corresponding to a rotation angle generated according to the rotation of the wheel is generated and fed back to the user (S200). That is, when the rotation angle corresponds to the predetermined angular range (for example, it is possible to belong to the center of the angular range or to enter the angular range for the first time), a tactile signal assigned to the angular range is generated. , Is passed to the user. That is, while the user rotates the haptic wheel continuously, the user receives feedback of the tactile signals of the patterns different from each other, and when the user rotates the haptic wheel by a predetermined angle or more, the pattern is repeated.

Thereafter, the user inputs any one of the fed back tactile signals as an input signal (S300). The input signal inputs the last tactile signal pattern fed back as an input signal. For example, the tactile signal may be input through a button provided at the center of the wheel.

As described above, the plurality of tactile signals allocated to each of the plurality of unit sectors for dividing the wheel into an angular range of a predetermined size are distinguished from each other based on various patterns, for example, frequency, vibration time, or vibration intensity. The user senses the tactile signal of various patterns while rotating the wheel. The plurality of tactile signals assigned to the unit sector may be aligned in such a manner that the frequency, vibration time or vibration intensity increases or decreases as the wheel rotates, and the increase or decrease pattern is repeated based on a predetermined angle. For example, as the wheel rotates clockwise, the tactile signal divided by the frequency gradually increases, and when it exceeds a predetermined angle, the tactile signal is restored to the original frequency again. On the contrary, as the wheel rotates counterclockwise, the frequency decreases in stages, and when the wheel exceeds a predetermined angle, the frequency can be restored to the original frequency again.

8 is a flowchart illustrating a tactile interface method according to another embodiment of the present invention.

Referring to FIG. 8, in the tactile interface method according to the exemplary embodiment of the present invention, the step of changing the tactile signal allocated to the unit sector for dividing the wheel into a predetermined angular range after the input step in FIG. 7 is performed (S400). It includes more. As a result, the tactile signal assigned to the angular range of the wheel is different, and the tactile signal fed back by the user as the tactile wheel is rotated is different from before. Here, the change of the tactile signal assigned to the unit sector is a method of reassigning after the input signal is input, after initializing the tactile signal assigned to the angle range of the wheel. The change of the tactile signal may be performed by moving the tactile signal allocated to the angular range (unit sector) by a predetermined interval, and the movement interval may be determined in a random manner.

Another aspect of the present invention provides a security input method using the tactile wheel described above. Here, the security input method refers to a general method of allowing a desired function according to the same signal as a preset signal.

The security input method according to the present invention uses a rotatable wheel as described above, and the security input method according to an embodiment of the present invention is based on various patterns of tactile signals generated according to the rotation of the wheel.

9 is a step diagram of a secure input method according to an embodiment of the present invention.

Referring to FIG. 9, the security input method according to the present disclosure starts with setting a plurality of digit passcodes based on tactile signals distinguished from each other according to a predetermined criterion (S200). The plural-digit passcode refers to a form in which a plurality of tactile signals arbitrarily selected from various types of tactile signals are arbitrarily combined.

Thereafter, the user is rotated a wheel including a plurality of unit sectors, each of which is divided into a predetermined angular range and each of which is assigned a tactile signal, to continuously receive feedback of the tactile signal assigned to the unit sector (S210). The user inputs any one of the signals as an input signal of the pass code (S220). The input of the passcode may be performed by, for example, pressing a separate input button provided at the center of the wheel. Thereafter, when the input tactile signal and the tactile signal of the set pass code are matched with each other, the next step enters a pass code input step.

Hereinafter, a security input method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

10A to 10G illustrate a security input method according to an embodiment of the present invention.

Referring to Fig. 10A, a pass code in which six tactile signals in a pattern arbitrarily selected from six kinds of tactile signals divided by frequency is arbitrarily disclosed. The passcode consisting of the combined tactile signal is a passcode that must match the tactile signal generated while the user rotates the wheel, and serves as a lock lock.

Referring to FIG. 10B, a tactile wheel 100 for generating an input signal corresponding to a preset passcode is disclosed. The tactile wheel may rotate based on an arbitrary point, and in FIG. 10B, the unit sector to which the t3 tactile signal is assigned is positioned at 12 o'clock.

Referring to FIG. 10C, the user rotates the upper wheel counterclockwise, and the wheel is positioned in the unit sector t2. According to the rotation angle, a corresponding tactile signal t2 is generated, and the pattern of the tactile signal is matched to the tactile signal S1 of frequency 3 of the preset passcode. Accordingly, the user inputs the tactile signal pattern as an input signal, and the controller provided in the tactile wheel according to the present invention matches the tactile pattern of the input signal with a preset pass code. If there is a match, the input phase for the first digit passcode is completed, and the input phase for the second digit passcode begins, and the tactile signal assigned to a plurality of angular ranges before the second digit input phase First it is arbitrarily changed. For example, in FIG. 10D, the tactile signal is moved and reassigned in an angular range adjacent to the clockwise direction.

Referring to FIG. 10E, the user searches for a tactile signal corresponding to t3. As the user rotates the wheel clockwise, the user sequentially receives feedback of the tactile signals assigned to t2 and t3. Then, as the t3 tactile signal is fed back, the user inputs it as an input signal. This completes the input step for the second passcode as in FIG. 10F.

Referring to FIG. 10G, the tactile signal pattern assigned to the angular range of the wheel is then randomly reassigned. By repeating the above process, the user can release the security device using only the tactile feeling felt only by the user. The configuration of the present invention, in which the tactile pattern assigned to the plurality of angular ranges is changed for each input stage, makes it impossible for an external third party, especially others who have used the wheel, to predict the input signal input by the user.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art. Modifications are possible. Accordingly, the spirit of the invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications will fall within the scope of the invention.

1 is a front view of a tactile wheel according to an embodiment of the present invention.

2A and 2B are front views of tactile wheels according to one embodiment of the invention.

3A to 3C are diagrams illustrating a process in which a user receives feedback of a tactile signal according to one embodiment of the present invention.

4 is a block diagram of a tactile wheel according to an embodiment of the present invention.

5A and 5B are front and side views, respectively, of a tactile wheel made in accordance with one embodiment of the present invention.

6A to 6E illustrate a process of generating a predetermined tactile signal using the tactile wheel according to an embodiment of the present invention, inputting the same, and then reassigning a newly changed tactile signal to an angular range.

7 is a step diagram of a tactile interface method according to an embodiment of the present invention.

8 is a flowchart illustrating a tactile interface method according to another embodiment of the present invention.

9 is a step diagram of a secure input method according to an embodiment of the present invention.

10A to 10G illustrate a security input method according to an embodiment of the present invention.

Claims (22)

As a rotatable wheel, Rotation angle measuring means for measuring a rotation angle of the wheel; An actuator configured to generate a tactile signal assigned to the angle range and feed back to the user when the measured rotation angle of the wheel corresponds to a predetermined angle range; Input means for inputting a tactile signal fed back to the user as an input signal; And And a control unit for reassigning the tactile signal allocated to one angular range of the wheel to another angular range of the wheel after the fed back tactile signal is input as an input signal, wherein the reassignment is the one angle. And a method of moving the tactile signal assigned to the range to another angular range spaced by a predetermined interval. The method of claim 1, And wherein the angular range is plural, and the tactile signals assigned to each of the angular ranges are distinguished from each other according to a predetermined pattern. 3. The method of claim 2, The predetermined pattern is characterized in that the frequency, vibration intensity or vibration time, haptic wheel. The method of claim 3, The tactile wheel is characterized in that the pattern is continuously increased or decreased in accordance with the rotation of the wheel. The method of claim 4, wherein According to the rotation of the wheel, the pattern is repeated, based on a predetermined angle, haptic wheel. delete delete delete The method of claim 1, The input means is a tactile wheel, characterized in that the input button, provided in the center of the wheel. 10. A security input device comprising a tactile wheel according to any one of claims 1 to 5 and 9. In the tactile interface method using a rotatable wheel, Allocating tactile signals to a plurality of unit sectors for dividing the wheel into a predetermined angular range; Generating a tactile signal of a unit sector in an angular range corresponding to a rotation angle generated according to the rotation of the wheel, and feeding it back to the user; Inputting any one of the feedback tactile signals as an input signal; And And changing the tactile signal assigned to the unit sector, wherein the change of the tactile signal moves the tactile signal assigned to the unit sector by a predetermined interval. The method of claim 11, And a plurality of tactile signals allocated to the plurality of unit sectors are distinguished from each other based on frequency, vibration time, or vibration intensity. The method of claim 12, And a plurality of tactile signals assigned to the unit sector are arranged in such a manner that the frequency, vibration time or vibration intensity increase or decrease according to the rotation of the wheel. delete delete In the security input method using a rotatable wheel, (a) setting a plurality of passcodes based on tactile signals distinguished from each other according to a predetermined criterion; (b) continuously feeding back a tactile signal assigned to the unit sector by rotating a wheel including a plurality of unit sectors each of which is divided into a predetermined angular range and to which a tactile signal is assigned; (c) a user inputting one of the feedback tactile signals as an input signal of a passcode; And and (d) when the input tactile signal and the tactile signal of the set pass code match each other, enter the next digit passcode input step. The method of claim 16, And a tactile signal assigned to each of the plurality of sectors is a vibration signal, and the vibration signals have different patterns. The method of claim 16, And when the input tactile signal and the tactile signal of the set pass code do not match with each other, the next step is not entered into the passcode input step. The method of claim 16, And the tactile signal changes as the wheel is rotated. The method of claim 19, The tactile signal of the predetermined reference is repeated as the wheel rotates. The method of claim 16, And (d) moving the tactile signals respectively assigned to the plurality of unit sectors to different unit sectors. The method of claim 21, And wherein the moving step is a step of moving the tactile signal allocated to the unit sector to another unit sector spaced apart by a predetermined interval determined in an arbitrary manner.

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