KR101243236B1 - Input device having wheel capable of two operation modes and method of controlling the input device - Google Patents

Abstract

Disclosed is a wheel input device having two modes of operation. The wheel input device is a wheel capable of rotating motion and rotation axis movement, a rotation sensor for detecting the rotational characteristic of the wheel, a movement sensor for detecting the movement of the rotational axis of the wheel, and a rotational characteristic detected by the rotation sensor depending on whether the movement sensor is in operation. And a control unit for generating different input signals. That is, different operation modes such as a general scroll function and an acceleration function of a scroll may be selectively implemented by the rotational movement of the wheel and the rotational axis movement.

Wheel, rotation sensor, movement sensor, control unit

Description

Wheel input device and control method of wheel input device having two operation modes {INPUT DEVICE HAVING WHEEL CAPABLE OF TWO OPERATION MODES AND METHOD OF CONTROLLING THE INPUT DEVICE}

1 is a front view for explaining a conventional wheel input device.

2 is a partial side view of FIG. 1.

3 is a front view for explaining a wheel input device according to an embodiment of the present invention.

4 is a partial left side view of FIG. 3.

5 is a partial right side view of FIG. 3.

6 and 7 are graphs showing the relationship between the rotation angle and the scroll speed of the wheel according to an embodiment of the present invention.

8 is a control flowchart illustrating a control method of a wheel input device.

FIG. 9 is a control flowchart illustrating a process of detecting a rotation characteristic of a wheel according to two modes in a control method of a wheel input device.

<Explanation of symbols for the main parts of the drawings>

120: wheel 122: rotary shaft

125 ： wheel fixing part 130 ： rotation sensor

140: movement sensor 150: control unit

160: Wheel restriction part 170: Support rib

172 ： Binding unit 174 ： Torsion spring

180: first detector 190: second detector

The present invention relates to a wheel input device, and more particularly, to a wheel input device capable of controlling two operation modes.

In general, a wheel input device is an input device attached to a mouse, a portable multimedia player, a TV, and the like. The wheel input device is a device that selects content provided on a screen and uses a desired program rather than a device that actually inputs arbitrary data such as a keyboard. It is an input device having a function and a pointing function.

1 is a cross-sectional view illustrating a conventional wheel input device.

Referring to FIG. 1, a conventional wheel input apparatus includes a wheel 1, a wheel shaft 60, a rotating body 10, and a controller.

The wheel 1 may be made of a rubber-like material having a large friction force so that the user can easily rotate the finger. The wheel shaft 60 penetrates the center of the wheel 1 to allow both ends to be rotatable to the support 40. Is mounted. However, the wheel 1 is fixed to the wheel shaft 60 so as to rotate simultaneously with the wheel shaft 60.

In addition, the wheel 10 is mounted with a rotating body 10 at predetermined intervals from the wheel 1. The rotating body 10 is provided as a gear including a plurality of gear teeth on the surface, the radial slit 12 is formed on the side of the rotating body 10.

In addition, the support unit 40 is mounted to the sensor unit 80 including the light emitting element 83 and the light receiving element 82 in the upper inner side facing each other. When light is emitted from the light emitting device 83, the light selectively passes through the slit 12 of the rotating body 10 and is received by the light receiving device 82. Therefore, when the user rotates the wheel 1, the rotating body 10 rotates and the light passing through the slit 12 is detected by the sensor unit 80 such as the rotating speed and the rotating angle of the rotating body 10. Rotation characteristics can be detected. At the same time, the controller may perform a scroll function of scrolling the screen on the display by using the rotation characteristics of the rotating body.

In addition, the upper portion of the support portion 40 is provided with a protruding piece 20, it is mounted to mesh with the gear teeth of the rotating body (10). Therefore, the projecting piece 20 meshes with the gear teeth of the rotating body 10 when the wheel 1 rotates so that the gear teeth meshing with the projecting piece 20 are replaced. While making a sound, the user can give a certain sense by the elasticity of the protrusion 20 when the user rotates the wheel 1.

In addition, the spring 70 provided on the lower portion of the support portion 40 may constantly pressurize the support portion 40 to give a repulsive force when the user clicks on the wheel 1.

For reference, the slits 12 of the rotating body 10 are spaced one by one each time the gear 10 engaged with the protruding piece 20 is rotated by rotating the rotating body 10. Of course, the manufacturer can arbitrarily determine the number of exchange of slits in accordance with the rotation distance of the rotating body to control the scroll speed in order to control the ratio of the rotation speed of the wheel and the scroll speed.

In addition, in the conventional wheel input device, the wheel button switch 50 is installed below the support part 40 to provide a pointing function. Accordingly, the user can rotate the wheel to use the scroll function, and press the wheel to operate the wheel button switch to perform the pointing function of the wheel input device.

That is, the above-described conventional wheel input device may sense the rotation of the wheel to perform a scroll function proportional to the rotation angle, and pressing the wheel may be used to activate various functions with one button. In addition, in the case of a wheel input device provided with an autoscrolling function, the autoscroll mode is activated by pressing and releasing the wheel once, and in the autoscrolling mode according to the movement of the device itself such as a mouse. Scrolling occurs at a speed proportional to the difference between the first and second positions of the wheel depression. In Autoscroll mode, return to normal mode by clicking the wheel or other button once.

However, a wheel input device used in a conventional mouse or a remote controller equipped with the above-described conventional wheel input device is not inconvenient for scrolling a short distance on a screen or selecting one of several menu items, but a long distance is used. It is inconvenient to scroll through or select one of dozens of menu items.

In addition, the automatic scroll function provided by the conventional wheel input device also has difficulties in terms of technology or cost in that it is difficult to be applied as an input device of a remote controller and a portable multimedia player, which are difficult to sense the movement of the device itself.

The present invention is to solve the above-described problems, an object of the present invention is to provide a wheel input device that can define two or more various functions for the rotation of the wheel.

Another object of the present invention is to provide a wheel input device that can be used in a device that can not detect movement in addition to the pointing input device capable of detecting movement, to impart various functions.

It is still another object of the present invention to provide a wheel input device that can easily expand a function by adding an additional structure to an input structure of an existing wheel input device.

Still another object of the present invention is to provide a wheel input device capable of preventing malfunction between functions by minimizing interference between functions.

According to a preferred embodiment of the present invention for achieving the above object of the present invention, the wheel input device of the present invention is a wheel capable of rotational movement and rotation axis movement, a rotation sensor for detecting the rotational characteristics of the wheel, the rotation axis movement of the wheel And a controller configured to generate an input signal different from each other in a rotation characteristic detected by the rotation sensor according to whether the movement sensor and the movement sensor are operated.

The wheel may be made of a material having a large friction force so that the user can easily rotate the finger, and the rotating shaft of the wheel penetrating the center of the wheel may be rotatably mounted at both ends to support the rotating shaft. In addition, the wheel fixing part for supporting the rotation axis of the wheel is movable up and down together with the rotation axis. However, the movement of the rotating shaft is not limited to the upper and lower sides according to the intention of the manufacturer, it may be mounted to slide the left and right or along a predetermined slope. At this time, the wheel is fixed to the rotating shaft to rotate simultaneously with the rotating shaft.

In addition, a first sensing unit is formed on the axis of rotation of the wheel, and a rotation sensor for detecting a rotation characteristic of the first sensing unit is mounted on the wheel fixing unit, and a movement sensor is mounted on the lower portion of the wheel fixing unit to move up and down the wheel fixing unit. Can be detected.

In addition, a wheel limiter for limiting the rotation range of the wheel moved to one end by the rotation axis of the wheel is further mounted, the wheel limiter provides a restoring force proportional to the rotation angle of the wheel. In more detail, the wheel restriction includes a support rib, a tie, a torsion spring.

First, a second sensing part is further provided on the axis of rotation of the wheel, and the support ribs are positioned around the wheel fixing part and rotate within a limited range. The binding portion formed on the support rib is selectively engaged with the second sensing portion moved downward, and the torsion spring may provide a restoring force proportional to the rotation angle of the support rib.

In addition, the controller may generate different input signals to the rotation characteristics of the first sensing unit sensed by the rotation sensor according to whether the movement sensor is operated.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments.

3 is a front view illustrating a wheel input device according to an embodiment of the present invention, FIG. 4 is a partial left side view of FIG. 3, and FIG. 5 is a partial right side view of FIG. 3.

3 to 5, the wheel input device includes a wheel 120 capable of rotating motion and a rotating shaft movement, a rotation sensor 130 for detecting a rotation characteristic of the wheel 120, and a rotation shaft 122 of the wheel 120. The control unit 150 generates an input signal different from the rotation characteristics detected by the rotation sensor 130 according to whether the movement sensor 140 and the movement sensor 140 operate to detect movement. For reference, in the present embodiment, the rotation characteristic refers to a rotation speed, rotation direction, or rotation angle of the first sensing unit 180.

The wheel 120 is formed of a rubber-like material having a large friction force so that the user can easily rotate the finger. The rotation shaft 122 of the wheel 120 penetrating the center of the wheel 120 is connected to the wheel fixing part 125. Both ends may be rotatably mounted to support the rotation shaft 122. In addition, the wheel fixing part 125 supporting the rotating shaft 122 is movable up and down together with the rotating shaft 122. However, the movement of the rotation axis of the wheel is not limited to up and down, and according to the manufacturer's intention, the movement of the rotation axis of the wheel may be mounted to slide left and right or along a predetermined slope. At this time, the wheel 120 is fixed to the rotation shaft 122 to rotate simultaneously with the rotation shaft 122.

In addition, a first sensing unit 180 is formed at the rotation shaft 122 of the wheel 120, and a rotation sensor 130 for sensing a rotation characteristic of the first sensing unit 180 is provided at the wheel fixing unit 125. Is mounted. In the present exemplary embodiment, the first sensing unit 180 provides a rotation characteristic of the first sensing unit 180 using the slit 181.

For reference, although not described in the present embodiment, in another preferred embodiment of the present invention, a predetermined reflection pattern is formed on the first sensing unit, and the rotational characteristic of the first sensing unit is sensed by reading the passage of the reflective pattern using an optical sensor. In another embodiment, the first sensing unit may sense the rotation characteristic by using a current generated from the first sensing unit using the rotor and the stator.

In more detail, the rotation sensor 130 includes a light emitting element 132 and a light receiving element 134 inside the upper parts of the wheel fixing part 125 facing each other.

When light is emitted from the light emitting device 132, light is selectively received by the light receiving device 134 by passing through the slit 181 of the first sensing unit 180. Therefore, when the user rotates the wheel 120, the first sensor 180 rotates and the light passing through the slit 181 is sensed by the rotation sensor 130 to detect the rotational speed of the first sensor 180, Rotational characteristics such as direction of rotation and angle of rotation can be detected. At the same time, the controller may perform a scroll function of scrolling the screen on the display by using the rotation characteristic of the first sensing unit 180.

In the present embodiment, the rotation sensor 130 uses an optical sensor that provides different input signals depending on whether light passes through the slit 181 formed in the first sensing unit 180.

In more detail, the wheel fixing part 125 is provided to include a light emitting device 132 and a light receiving device 134 inside the upper side facing each other, and the light detected by the light receiving device 134 is changed into an electrical signal. The control unit 150 may send a signal.

In another preferred embodiment of the present invention, the rotation sensor may simultaneously provide a light receiving element and a light emitting element on one inner side of the wheel fixing part and a reflector on the other inner side of the wheel fixing unit.

In addition, the upper part of the first sensing unit 180 is provided with a protruding piece 111 formed in the case 110, it is mounted to mesh with the gear teeth of the first sensing unit 180. Therefore, the protrusion piece 111 is engaged with the gear teeth of the first sensing unit 180 when the wheel 120 rotates, and makes a sound every time the gear teeth engaged with the protrusion piece 111 are exchanged. Rotate At the same time, the protrusion piece 111 is engaged with the gear teeth of the first sensing unit 180 when the wheel 120 rotates, and makes a sound whenever the gear teeth engaged with the protrusion piece 111 are exchanged. When rotating the 120 may give a certain sense to the user by the elasticity of the protruding piece (111). However, the protruding piece 111 maintains elasticity in the downward direction, but movement is limited by the stopper 115 protruding from the case 110. More specifically, when the user pushes the wheel 120 downward, the first sensing unit 180 moves downward along with the wheel 120, and the gears of the protrusion 111 and the first sensing unit 180 are further increased. I can't reach it. Therefore, even when the wheel 120 is pressed, the wheel 120 may be rotated without limitation on the elasticity of the protruding piece 111.

In addition, the lower portion of the wheel fixing portion 125 is equipped with a movement sensor 140 can detect the vertical movement of the wheel fixing portion 125, the lower side of the wheel fixing portion 125 of the wheel fixing portion 125 It further includes a support spring 112 for elastically supporting the bottom surface. Therefore, when the user presses the wheel 120, the wheel fixing part 125 may return to the original position.

In addition, the wheel limiter 160 is further mounted to limit the rotation range of the wheel 120 moved to one end by the rotation of the rotary shaft 122 of the wheel 120, the wheel limiter 160 is wheel 120 It provides a restoring force proportional to the rotation angle of. In more detail, the wheel restricting portion 160 includes a support rib 170, a binding portion 172, and a torsion spring 174.

First, the second sensing unit 190 is further provided on the rotation shaft 122. In the present embodiment, the second sensing unit 190 is provided as a tooth.

The support rib 170 is positioned around the wheel fixing part 125 and rotates within a limited range. The binding unit 172 formed on the support rib 170 is selectively engaged with the second sensing unit 190 moved downward, and the torsion spring 174 provides a restoring force proportional to the rotation angle of the support rib 170. can do. In the present embodiment, the binding unit 172 is provided as a binding protrusion protruding from the support rib 170 and is selectively engaged with the gear teeth of the second sensing unit 190 which is moved downward. At this time, it is switched to the automatic scroll mode according to the rotation angle, the rotation direction and the rotation speed of the wheel 120.

Therefore, in the wheel input device used in a conventional mouse or remote control equipped with a conventional wheel input device, an automatic scroll mode that performs a quick scroll function when scrolling a long distance or selecting one of several dozen or more menu items is used. You can easily select items.

The conventional mouse can detect the movement of the main body using a ball sensor or an optical sensor mounted on the bottom, and can perform an automatic scrolling function using the movement of the main body in addition to the normal scrolling function. On the other hand, since the remote controller or other portable media playback device cannot detect the movement of the main body, even if the user has a wheel input device, the automatic scrolling function such as a mouse cannot be performed. However, in the present embodiment, by adding components such as a wheel limiter and a second sensing unit to the conventional mouse structure, it is possible to simply add an auto scroll function or other functions to the wheel rotation in addition to the normal scroll function.

In addition, the controller 150 may generate different input signals to the rotation characteristics of the first sensing unit 180 sensed by the rotation sensor 130 according to whether the movement sensor 140 is operated.

In the present embodiment, the normal scroll function and the auto scroll function will be described. However, in another preferred embodiment, the input signal can be set to generate another input signal. For example, when the wheel is rotated, it can be set to control the volume of the device controlled by the wheel input device, and when changing to the mode for the second sensing unit, it can be set to change the channel by the rotation of the wheel. have.

In addition, even if the user excessively rotates the wheel 120, the rotation range of the support rib 170 is prevented in order to prevent an outward deformation that the torsion spring 174 does not return to circular even when the force is removed beyond the elastic limit. In order to limit, the locking portion 112 is formed on the movement path of the support rib 170.

In addition, the support rib 170 is rotatably mounted to the shaft 114 mounted on the case 110 forming the appearance of the wheel input device. The coil 114 of the torsion spring 174 is inserted into the shaft 114. In addition, the two spring arms of the torsion spring 174 are fixed to abut the body protruding support 113 and the support rib protruding support 173 which are respectively provided inside the two spring arms. The body protrusion support 113 protrudes from the case 110, and the support rib protrusion support 173 protrudes from the support rib 170. Accordingly, one spring arm is fixed by the rotation of the wheel 230 and the other spring arm is separated to provide an elastic force. For example, when the wheel 120 is rotated in one direction, the first spring arm 176 abuts against the support rib protruding support 173 is fixed, and the second spring arm 177 abuts against the body protruding support 113. Is away from one spring arm along the body protruding support 113. Thus, the torsion spring may provide an elastic force determined by the angle of rotation of the wheel 120.

For reference, in the present embodiment, the rotation characteristic of the first sensing unit 180 is detected by one optical sensor, that is, the rotation sensor 130 in both the auto scroll mode and the non-auto scroll mode, but in another preferred embodiment, Different modes can be used in each mode.

As in the present exemplary embodiment, when using one sensor, the sensitivity of the sensor may be increased by using a high resolution sensor or by increasing the number of slits by the first sensing unit 180. However, unlike the auto scroll mode that requires a high resolution, the general scroll mode does not require the same high resolution as the auto scroll mode. This is because, in general scrolling mode, high resolution, such as automatic scrolling mode, causes a large amount of scrolling even if the wheel is slightly rotated. To solve this problem, subsampling may be applied. For example, if one slit passes in the auto scroll mode and the scroll amount is set to 1, the scroll amount may be set to 1 when two or more slits pass in the non-auto scroll mode.

6 is a graph showing the relationship between the rotation angle and the scroll speed of the wheel according to an embodiment of the present invention.

Referring to FIG. 6, when the user simply selects the content provided on the screen by simply clicking on the wheel 120, the automatic wheel mode is changed by the rotation of the fine wheel 120, which is proportional to the rotation angle of the wheel 120. It is not desirable that scrolling of speed occurs. Therefore, the movement sensor 140 detects the vertical movement of the wheel 120 and switches to the automatic scrolling mode only when the rotation angle of the wheel 120 rotates more than a predetermined threshold value d or -d.

That is, when the rotation is sensed more than the threshold values d and -d in the non-auto scroll mode (ⓐ, ⓒ), the auto scroll mode is changed and when the wheel returns to the original position, the original mode (ⓑ) is returned. Is switched to. 5 shows a transition of mode switching. In other words, no mode change occurs below the selected threshold.

For reference, in the state where the sawtooth bone of the first sensing unit 180 is engaged with the protruding piece 111, the sawtooth bone of the second sensing unit 190 is also up and down with the binding protrusion 200 of the support rib 170. It is a good idea to stay in a consistent state. This is because when the user presses the wheel 120 and moves the second sensing unit 190 along with the wheel fixing unit 125 downward, the binding protrusion 200 is engaged with the teeth of the second sensing unit 190. It is because it is preferable. To this end, the number of teeth formed in the first sensing unit 180 may be the same as the number of teeth formed in the second sensing unit 190 or an integer multiple thereof.

7 is a graph showing the relationship between the rotation angle and the scroll speed of the wheel according to an embodiment of the present invention.

Referring to FIG. 7, the movement sensor 140 of the present embodiment senses the vertical movement of the wheel 120, and the user first rotates the wheel 120 by more than a predetermined threshold (d, -d). It is preferable that the rotation angle and the scroll speed relationship of the wheel 120 be maintained after the automatic scrolling mode. This is because the change in the scroll speed according to the rotational characteristics of the first sensing unit 180 may be reflected in the change of the scroll speed after the switch to the automatic scroll mode.

Therefore, in this embodiment, the movement sensor 140 detects the vertical movement of the wheel 120, and after the rotation angle of the wheel 120 rotates above the initial threshold, regardless of the threshold of the wheel 120 By always maintaining the auto scroll mode, you can reflect the movement of fine wheels to the scroll speed change. Of course, when the user clicks on the wheel 120 again at some point in use, the automatic scroll mode is canceled when the movement sensor detects the vertical movement of the wheel. In this case, the user again moves the wheel 120 above the initial threshold value. You must rotate) to use the auto scroll mode.

In addition, in the present embodiment, the scroll speed is linearly proportional to the rotation angle of the wheel 120, but in order to improve usability, the scroll speed is divided into several steps to have a constant speed for each section, or the speed is determined to the angle. It can be exponentially proportional, or it can be applied to various variations of rotational angles and scroll speed relationships, such that the speed increases gradually over time even when the same angle is maintained.

8 is a control flowchart illustrating a control method of the wheel input device, and FIG. 9 is a control flowchart illustrating the steps S320 to S340 in the control method of the wheel input device.

8 and 9, the control method of the wheel input apparatus according to the present invention provides a wheel capable of rotating movement and rotation axis movement (S310), detecting a rotation axis movement of the wheel using a movement sensor ( S320, detecting a rotation characteristic of the wheel using the rotation sensor (S330), and generating an input signal different from each other on the rotation characteristic detected by the rotation sensor according to whether the movement sensor is operated (S340). .

In the present embodiment, detecting the movement of the rotation axis of the wheel by using the movement sensor (S320), the wheel fixing portion 125 for supporting the rotation shaft 122 is moved by the user to press the wheel up and down with the rotation shaft 122 In this case, the movement sensor 140 detects this.

In the detecting of the rotation characteristic of the wheel using the rotation sensor (S330), the rotation sensor 130 detects the rotation speed and the rotation angle of the first sensing unit 180, that is, the rotation characteristic.

In operation S340, the input unit 172 formed on the support rib 170 may move downward in response to the operation of the movement sensor. It is a step of selectively binding to the gear value of the 190 is to switch to the automatic scroll mode according to the rotation angle and the rotation speed of the wheel 120.

That is, when the axis of rotation of the wheel moves to one of the movement paths, it is generated by increasing the input signal in proportion to the rotation angle of the wheel. However, the step of generating different input signals for the rotational characteristics sensed by the wheel rotation sensor depending on whether the axis movement sensor is operated may be different within a predetermined rotation angle of the wheel, that is, within a threshold value (-d, d). Do not generate an input signal.

Therefore, when the user simply selects the content provided on the screen by simply clicking the wheel 120, the fine wheel 120 is switched to the automatic scroll mode by the rotation of the fine wheel 120, thereby scrolling at a speed proportional to the rotation angle of the wheel 120. It can be prevented from occurring.

It also provides a wheel restraint that engages the wheel only when the axis of rotation of the wheel moves to the one end, and generates restoring force proportional to the rotation angle of the wheel restraint.

Referring back to FIG. 9, in steps S320 to S340 of the control method of the wheel input device, the rotation shaft 122 descends and the movement sensor 140 detects the vertical movement of the wheel 120. At this time, if the rotating shaft 122 does not descend, the automatic scroll mode does not operate.

On the other hand, after the rotating shaft 122 is lowered and the user first rotates the rotation angle of the wheel 120 by more than a predetermined threshold (d, -d), the automatic scroll mode is activated.

After the automatic scrolling mode is activated, when the rotating shaft 122 rises again, the normal scrolling mode is switched. However, if the rotating shaft 122 does not rise, the automatic scrolling mode is maintained continuously.

The wheel input device according to the present invention can define two or more various functions with respect to the rotation of the wheel.

In addition, the wheel input device according to the present invention has an effect of providing various functions by being used in a device that cannot detect movement in addition to a pointing input device capable of detecting movement.

In addition, the wheel input device according to the present invention has the effect of simply expanding the function by adding an additional structure to the input structure of the existing wheel input device.

In addition, the wheel input device according to the present invention has the effect of preventing the malfunction between the functions by minimizing the interference between each function.

As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

Claims (16)

A wheel capable of rotating motion and rotating shaft rotation; A rotation sensor for detecting a rotation characteristic of the wheel; A movement sensor for detecting a movement of the rotation axis of the wheel; And A controller configured to generate input signals different from the rotation characteristics sensed by the rotation sensor according to whether the movement sensor is operated; Wheel input device having a. The method of claim 1, Further comprising a wheel limiting unit for limiting the rotation range of the wheel moved to one end by the rotation axis movement, Wherein the wheel limiting wheel input device, characterized in that to provide a restoring force proportional to the rotation angle of the wheel. The method of claim 1, The wheel is mounted to the wheel fixing portion, the wheel input unit, characterized in that the wheel moves with the rotation axis of the wheel. The method of claim 1, Wheel input device, characterized in that the axis of rotation of the wheel is movable up and down. 5. The method of claim 4, And the wheel limiting unit is selectively engaged with the wheel which is moved downward to provide a restoring force proportional to the rotation angle of the wheel. A wheel capable of rotating movement; A first sensing unit and a second sensing unit formed on the rotating shaft of the wheel; A wheel fixing part supporting a rotating shaft of the wheel and movable up and down together; A rotation sensor mounted on the wheel fixing part to sense a rotation characteristic of the first sensing part; A movement sensor positioned below the wheel fixing part to detect vertical movement of the wheel fixing part; A support rib positioned around the wheel fixing part and rotating within a limited range, a binding part selectively engaged with the second sensing part formed on the support rib and moving downward and a restoring force proportional to a rotation angle of the support rib Wheel limiter including a torsion spring to provide; And A controller configured to generate an input signal different from a rotation characteristic of the first sensing unit sensed by the rotation sensor according to whether the movement sensor is operated; Wheel input device having a. The method of claim 6, The wheel input device further comprises a support spring for elastically supporting the bottom surface of the wheel fixing portion. A wheel capable of rotating movement; First and second teeth formed on a rotation shaft of the wheel; A wheel fixing part supporting a rotating shaft of the wheel and movable up and down together; A rotation sensor mounted on the wheel fixing part to sense a rotation characteristic of the first tooth; A movement sensor positioned below the wheel fixing part to sense a downward movement of the wheel fixing part; A support spring for elastically supporting the bottom surface of the wheel fixing part; A support rib rotatably mounted in the periphery of the wheel fixing part, a binding protrusion formed on the support rib and selectively engaged with the second tooth moved downward, and a torsion providing a restoring force proportional to a rotation angle of the support rib. A wheel limiter including a spring; And A control unit for increasing a scroll speed in proportion to a rotation amount of the first tooth detected by the rotation sensor when detecting a downward movement of the wheel fixing unit by an operation of the movement sensor; Wheel input device having a. 9. The method of claim 8, And a locking portion for limiting a rotation range of the supporting rib, wherein the locking portion is located on a movement path of the supporting rib. 9. The method of claim 8, The support rib is a wheel input device, characterized in that installed in the case forming the appearance. The method of claim 10, And the torsion spring includes a central coil part and two spring arms extending from the coil part. 12. The method of claim 11, The case is provided with a body protruding support portion interposed between the spring arm, the support ribs wheel input device, characterized in that the support rib protruding support portion is interposed between the spring arm. Providing a wheel capable of rotating motion and rotating shaft movement; Detecting a rotational shaft movement of the wheel using an axis movement sensor; Detecting rotational characteristics of the wheel using a wheel rotation sensor; And Generating an input signal different from the rotation characteristic detected by the wheel rotation sensor according to whether the axis movement sensor is operated; Control method of a wheel input device having a. 14. The method of claim 13, And when the axis of rotation of the wheel moves to one of the movement paths, increasing the input signal in proportion to the rotation angle of the wheel. The method of claim 14, Generating different input signals to the rotational characteristics sensed by the wheel rotation sensor depending on whether the axis movement sensor is operated may not generate the other input signals within a predetermined rotation angle of the wheel. Control method of input device. The method of claim 14, And providing a wheel restraining unit engaged with the malleable wheel only when the rotation axis of the wheel moves to the one end, and generating a restoring force proportional to the rotation angle of the wheel restraining unit.

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