KR20100005889A - Digital processing unit having key input unit and key input method - Google Patents

Abstract

Disclosed are a digital processing apparatus having a key input unit and a key input method. Key button unit according to the invention, the base is fixed to the center position of the key button unit; A slider for moving in parallel to the horizontal plane of the base by user manipulation; A frame supporting the slider to move in parallel; And a restoration processing unit that provides resistance to parallel movement of the slider and causes the parallel moved slider to return to its original position. According to the present invention, the number of key buttons can be minimized by maximizing the number of information that can be input using one key button.

Description

Digital processing unit having key input unit and key input method {Digital processing unit having key input unit and key input method}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital processing apparatus having a key input unit and a key input method, and more particularly to input user operation commands (e.g., one or more of letters, numbers, operation mode selection, application execution, control commands, etc.). The present invention relates to a digital processing apparatus having a key input unit and a key input method using the same.

As an example of a digital processing apparatus, a mobile communication terminal may include a key button for inputting letters / numbers, a function key button for starting and ending a telephone call, a plurality of function key buttons for selecting menu items, and the like. With a device.

The above-described key buttons perform an essential function for inputting a user operation command and must be provided in the mobile communication terminal.

However, this is a limiting factor in the trend toward the miniaturization of digital processing devices such as mobile communication terminals. That is, input devices such as keyboards and keypads used in digital processing devices (for example, personal computers, notebooks, mobile communication terminals, personal data assistants, and the like) are limited in size reduction. There is a difficulty in miniaturizing these digital processing devices.

In addition, although the touch screen method used in a mobile communication terminal or a PDA can achieve the purpose of miniaturization, there is a problem in that an input speed is slow and a wrong input is often inconvenient.

In order to solve the above problems, the present invention provides a digital processing apparatus and a key input method including a key input unit capable of minimizing the number of key buttons by maximizing the number of information that can be input using one key button. It is to provide.

In addition, the present invention is provided with a key input unit for maintaining a feeling of operation (tactile feeling) of the key button even when one key button performs a plurality of functions (e.g., selecting and inputting a plurality of characters / functions). One object is to provide a digital processing apparatus and a key input method.

Another object of the present invention is to provide a digital processing apparatus and a key input method including a key input unit for maximizing the recognition rate of information input by using a key button or a user operation command.

In addition, the present invention is to provide a digital processing apparatus and a key input method having a key input unit that can be minimized the number of key buttons to maximize the size and / or display area of the digital processing apparatus.

Other objects of the present invention will be easily understood through the following description.

According to an aspect of the present invention, there is provided a digital processing apparatus including a key button and a key button for inputting a user operation command according to a moving direction.

Key button unit according to an embodiment of the present invention, the base is fixed to the center position of the key button unit; A slider for moving in parallel to the horizontal plane of the base by user manipulation; A frame supporting the slider to move in parallel; And a restoration processing unit that provides resistance to parallel movement of the slider and causes the parallel moved slider to return to its original position.

The frame is disposed between the base and the slider, the base and the slider may be in vertical contact with the oblique surface of the frame.

The key button unit may further include an information plate coupled to an upper portion of the slider to detect vertical movement of the key button unit by the user operation.

The information plate may be formed of one or more of a touch pad, a touch screen, a printed circuit board (PCB), and a flexible printed circuit (FPC).

The restoration processing unit, the C-shaped wire to simultaneously wrap the outer side of the base and the slider; And it may include a movement detecting unit for fixing both ends of the wire.

The key button unit may include: a wire inserted into each of the C-shaped grooves formed inside the base and the slider to simultaneously surround the base and the slider; And it may include a movement detecting unit for fixing both ends of the wire.

The key button unit may further include n sensors (arbitrary natural numbers) spaced apart from the inner periphery of the slider formed in a ring shape. The n sensors may be operated by a detection signal of a movement detecting unit that detects elongation of a wire according to parallel movement of the slider.

In the key button unit, a center of the base may be formed higher than an outer portion, and the center may be inserted into an inner groove of the slider formed in a ring shape.

The restoration processing unit may be an elastic body that allows the outer periphery of the center portion and the inner periphery of the slider to be spaced apart by a predetermined distance.

The key button unit may further include n sensors (arbitrary natural numbers) spaced apart from the outer periphery of the central portion or the inner periphery of the slider.

The sensor may be one or more of a contact sensor, a pressure sensor, and a distance sensing sensor.

The movement detector may be one or more of a tact switch, a tension detector, a variable resistor, and an elastic terminal.

The wire may be formed of a material in which the elongation is increased to zero or limited to a predetermined value or less.

The key button unit may further include a push detector for detecting a push state according to the vertical movement of the key button unit. The n sensors may be started by the push state detection signal output of the push detector.

The key button unit may include: a key button cover coupled to the slider and disposed above the key button unit; And a touch sensing unit configured to sense whether the user touches the key button cover. Herein, the n sensors may be started by the touch state detection signal output of the touch sensing unit.

A support may be formed at a predetermined outside portion of the slider, and a key button cover may be disposed in a space partitioned by the support.

A support is formed at a predetermined portion of an outer portion of the slider, and the support may be inserted into a groove formed in the key button cover and coupled to each other.

Holes or protrusions and supports are formed at predetermined outer portions of the slider, and a key button cover is disposed in a space partitioned by the support, and a protrusion or hole formed under the key button cover is a hole of the slider or It can be combined with the projections.

The key button unit may further include an outer horizontal bearing disposed at a predetermined position between the frame and the slider.

The key button unit may further include an inner horizontal bearing disposed at a predetermined position between the frame and the center of the base. The inner horizontal bearing and the outer horizontal bearing may be disposed in different directions with respect to the central portion, respectively.

A magnet may be disposed under the base to allow at least one of the inner horizontal bearing, the outer horizontal bearing, and the vertical bearing disposed between the lower portion of the slider and the upper surface of the base to return to its original position after movement.

A digital processing apparatus according to another embodiment of the present invention includes a key button unit; And a controller for recognizing a reverse direction of an arrangement position of one or more sensors or a reverse direction of a vector sum as a moving direction of a slider with reference to a sensing signal input from the key button unit. The key button unit may include a base fixed to a center position of the key button unit; A slider for moving in parallel to the horizontal plane of the base by user manipulation; A frame supporting the slider to move in parallel; And a restoration processing unit that provides resistance to parallel movement of the slider and causes the parallel moved slider to return to its original position.

The restoration processing unit, the C-shaped wire to simultaneously wrap the outer side of the base and the slider; And it may include a movement detecting unit for fixing both ends of the wire.

The digital processing apparatus may further include n sensors (arbitrary natural numbers) spaced apart from the inner periphery of the slider formed in a ring shape.

The restoration processing unit, the wire is inserted into the C-shaped grooves formed respectively inside the base and the slider to surround the base and the slider at the same time; And it may include a movement detecting unit for fixing both ends of the wire.

The frame is disposed between the base and the slider, the base and the slider may be in vertical contact with the oblique surface of the frame.

The digital processing apparatus may further include an information plate coupled to an upper portion of the slider to detect vertical movement of the key button unit by the user manipulation.

The center of the base is formed higher than the outer portion, it may be disposed so that the center is inserted into the inner groove of the slider formed in a ring shape.

The restoration processing unit may be an elastic body that allows the outer periphery of the center portion and the inner periphery of the slider to be spaced apart by a predetermined distance.

The digital processing apparatus may further include n sensors (arbitrary natural numbers) spaced apart from the outer periphery of the central portion or the inner periphery of the slider. The n sensors may be operated by a detection signal of a movement detecting unit that detects elongation of a wire according to parallel movement of the slider.

The movement detector may be one or more of a tact switch, a tension detector, a variable resistor, and an elastic terminal.

The wire may be formed of a material in which the elongation is increased to zero or limited to a predetermined value or less.

The digital processing apparatus may further include a push detector configured to detect a push state according to the vertical movement of the key button unit. The n sensors may be started by the push state detection signal output of the push detector.

The digital processing apparatus may include a key button cover coupled to the slider and disposed above the key button unit; And a touch sensing unit configured to sense whether the user touches the key button cover. The n sensors may be operated by the touch state detection signal output of the touch sensing unit.

A support may be formed at a predetermined outside portion of the slider, and a key button cover may be disposed in a space partitioned by the support.

A support is formed at a predetermined portion of an outer portion of the slider, and the support may be inserted into a groove formed in the key button cover and coupled to each other.

Holes or protrusions and supports are formed at predetermined outer portions of the slider, and a key button cover is disposed in a space partitioned by the support, and a protrusion or hole formed under the key button cover is a hole of the slider or It can be combined with the projections.

The digital processing apparatus may further include an outer horizontal bearing disposed at a predetermined position between the frame and the slider.

The digital processing apparatus may further include an inner horizontal bearing disposed at a predetermined position between the frame and the central portion of the base. The inner horizontal bearing and the outer horizontal bearing may be disposed in different directions with respect to the central portion, respectively.

A magnet may be disposed under the base to allow at least one of the inner horizontal bearing, the outer horizontal bearing, and the vertical bearing disposed between the lower portion of the slider and the upper surface of the base to return to its original position after movement.

According to another aspect of the present invention, there is provided a recording medium in which a program of instructions that can be executed in a digital processing apparatus is recorded to perform a key input method.

According to an embodiment of the present invention, a program of instructions that can be executed in a digital processing apparatus is tangibly implemented to perform a key input method, and in a recording medium recording a program that can be read by the digital processing apparatus. Receiving a parallel movement start signal of the slider; Receiving a sensing signal from one or more sensors provided in the key button unit; And a recording medium on which a program for executing the step of recognizing the reverse direction of the arrangement position of the sensor that outputs the sensing signal or the reverse direction of the vector sum as the moving direction of the slider is provided. Here, the key button unit, the base is fixed to the center position of the key button unit; A slider for moving in parallel to the horizontal plane of the base by user manipulation; A frame supporting the slider to move in parallel; And a restoration processing unit that provides resistance to parallel movement of the slider and causes the parallel moved slider to return to its original position.

When the parallel movement start signal of the slider is received, the sensors included in the key button unit may be controlled to start operation.

The present invention has the effect of minimizing the number of key buttons by maximizing the number of information that can be input using one key button.

In addition, the present invention also has the effect of maintaining a feeling of operation (tactile feeling) of the key button even when one key button performs a plurality of functions (for example, selecting input of a plurality of characters / functions).

In addition, the present invention also has the effect of maximizing the recognition rate of the information or user operation command input using the key button.

In addition, the present invention has the effect that the number of key buttons can be minimized, thereby miniaturizing the digital processing apparatus and / or maximizing the display area.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this disclosure, the terms "comprise" or "having" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, one or more other It is to be understood that the present invention does not exclude the possibility of the presence or the addition of features, numbers, steps, operations, components, parts, or a combination thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In addition, in the following description of the present invention with reference to the accompanying drawings will be described mainly the case where each key button can be moved in parallel in four directions. However, according to the same technical idea, each key button can be moved in the n (natural number of two or more) direction (for example, 8 direction, etc.), and the direction of the parallel movement is sensed so that the designated user operation command (eg, character , One or more of a number, an operation mode selection, an application execution, a control command, etc.) may be easily input to those skilled in the art through the following description.

1 is a block diagram of a digital processing apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view of a key input unit according to an embodiment of the present invention, and FIG. 3 is a key according to an embodiment of the present invention. Front view of the input unit. 4 and 5 are combined perspective views of a key input unit according to an embodiment of the present invention, Figure 6 is a cross-sectional view of the key input unit according to an embodiment of the present invention.

Referring to FIG. 1, the digital processing apparatus may include a key input unit 100, a controller 130, a storage 140, and a display 150. The key input unit 100 may include a key button unit 110, a movement detecting unit 115, and a sensing unit 120. The number of the key input units 100 is provided to match the number of key buttons driven by the key input method according to the present invention.

The key button unit 110 is formed to enable parallel movement in an internal space of a groove (that is, a predetermined space defined by an inside of perimeter and a bottom surface) formed on one side of the digital processing apparatus. The circuit device (eg, PCB, FPC, touch screen module, etc.) included in the key button unit 110 may be formed to receive a vertical input signal while moving in parallel with the key button unit 110.

The key button unit 110 may be formed to enable continuous parallel movement and the like in order to enable recognition and / or input of rotational movement.

The movement detector 115 detects whether the slider 230 disposed around the base 210 (see FIG. 2) has moved in an arbitrary parallel direction, and outputs the detected information.

2 illustrates a case in which the movement detecting unit 115 includes a wire 250 that simultaneously surrounds the outer surfaces of the base 210 and the slider 230 and a tact switch 260 that fixes both ends of the wire 250. It is.

Although not shown, the slider 230 may be combined with a key button cover (key top) disposed on an upper surface of the corresponding key input unit 100, and may be coupled to a direction in which the user moves the key button cover. Can be moved to match. The top or surface of the key button cover (and / or touch pad screen module) has one of the following: special glass, film, polycarbonate (PC), acrylonitrile butadiene styrene (ABS), acrylic, or other plastic material to prevent slipping of the finger during user operation. The abnormalities may be attached or a special paint may be coated. The key button cover may be made of any one or a combination of SUS series, other metal series, PC, ABS, PC / ABS, other plastic series, rubber, silicone, or the like (for example, the surface may be made of rubber). It is formed, and the lower surface may be formed of SUS series).

Here, the wire 250 is formed of a material (eg, rubber, etc.) in which the elongation is increased by 0 or is minimized within a reference value. For example, the reference value may be a value limiting the maximum extension limit to 193.74 mm assuming that the length of the original wire 250 is 186.8 mm. Of course, the elongation may be determined and implemented in various ways according to the design method.

In addition, since the coil spring (see FIG. 8) is provided in the tact switch 260 that fixes the wire 250 even when the elongation is 0 (or the minimum value), the wire ( When the 250 is subjected to a force to be stretched in a specific direction, the length of the coil spring may be extended, so that the same effect as that of the wire 250 having a predetermined elongation may be expected. In this case, since the elongation of the wire 250 is 0 (or the minimum value), there is also an advantage of preventing a malfunction of the signal counter due to the length variation of the wire 250.

However, the wire 250 may have elasticity so that the slider 230 may return to its original position after parallel movement in any direction by a force applied to the slider 230 (that is, a force applied by the user for parallel movement of the key button). Can be. Wire 250 may be replaced with a belt or the like to achieve the same purpose. The wire 250 has elastic force, but the elongation is limited, so that the slider 230 can quickly return to its original position.

In addition, the wire 250 may be any material as long as it is flexible and is a material that does not increase with temperature and time. For example, the wire 250 may be formed of a flexible printed circuit (FPC) that can be bent, and in this case, the wire itself may be capable of signal processing even without separately mounting a signal processing switch. .

Although the case where the shape of the wire 250 is rectangular is illustrated in the drawings, the shape of the wire 250 is not limited as long as it satisfies the purpose of the wire 250 described herein.

The tact switch 260 is for maintaining the user's key button operation feeling (tactility) excellently, the control unit 130 is the slider 230 by the on (On) / off (Off) of the contact during the parallel movement of the slider 230 It can also function as a signal counter to sense the parallel movement of c) (see Figure 8). Of course, when the tact switch 260 is limited to perform only the purpose of maintaining a good feeling of operation, it is obvious that a separate signal counter may be further provided.

The tact switch 260 is operated as the length of the wire 250 is increased by the applied force. That is, the tact switch 260 starts the operation by the parallel movement of the slider in the north-east, north-west, or diagonal direction.

As shown in the drawing, the present invention is capable of maintaining a user's feeling of operation and operating as a signal counter with only one tact switch 260 even though various information input and / or function selection can be made by parallel movement of key buttons. Have

In FIG. 2, it is assumed that the tact switch 260 is exposed to the outside, but the tact switch 260 may recognize the parallel movement of the slider 230 (that is, the misalignment between the slider 230 and the base 210). If possible, it may be provided in any position.

Naturally, the shape of the movement detector 115 is not limited thereto, and may be implemented as, for example, a terminal having elasticity. However, some examples of implementing the movement detecting unit 115 will be described later with reference to FIGS. 11 to 14.

The sensing unit 120 outputs a sensing signal for the controller 130 to recognize in which direction the slider 230 has moved.

2 illustrates a case in which four pressure sensors 220 are arranged in one of four directions of the base 210 as the sensing unit 120. However, it is obvious that the number of the pressure sensors 220 constituting the sensing unit 120 is limited to four, and may be increased or decreased as necessary. A protrusion 240 may be formed on a side surface of the slider 230 facing each pressure sensor 220 so that pressure may be easily applied to the pressure sensor 220 when the slider 230 is moved in parallel.

If each pressure sensor 220 is disposed on the inner circumferential surface of the slider 230, the protrusion 240 may be disposed on the outer circumferential surface of the opposing base 210.

In addition, if the contact surface of the pressure sensor 220 is formed to protrude to the outside (for example, formed of a folk type terminal terminal, other self-acting terminal, etc.), the protrusion 240 is omitted. It could be.

Of course, the shape of the sensing unit 120 is not limited thereto. However, some examples of implementing the sensing unit 120 will be described later with reference to FIG. 12.

Referring back to FIG. 1, the controller 130 detects a movement of the slider 230 by referring to a movement detection signal input from the movement detection unit 115 and uses a sensing signal input from the sensing unit 120. It detects which direction the slider 230 has moved. Thereafter, the controller 130 will control the digital processing apparatus to perform an operation according to the movement direction of the recognized slider 230.

The storage unit 140 is a storage space in which data necessary for the operation of the digital processing apparatus is stored, and the display unit 150 outputs an operation state of the digital processing apparatus under the control of the controller 130.

3 illustrates a plan view of the key input unit, FIGS. 4 and 5 illustrate a combined perspective view of the key input unit, and FIG. 6 illustrates a cross-sectional view of the key input unit. For reference, FIG. 4 is a perspective view of the coupling viewed from the top, Figure 5 is a perspective view of the coupling viewed from the bottom.

As shown, the key input unit 100 is formed so that the inner side is protruding and the base 210, which does not move in parallel in the disposed position, and the protruding portion of the base 210 is inserted or penetrated through the base ( A slider 230 disposed to be positioned around the protruding portion of the 210 and the upper portion of the base 210, and a wire that simultaneously surrounds the outer side of the base 210 and the slider 230 stacked in a two-layer structure ( 250 and a tact switch 260 that secures both ends of the wire 250. A frame 410 may be further included to be disposed above the inner surface of the base 210 and below the inner surface of the slider 230 so that the slider 230 and the base 210 always move at right angles.

If the key input unit 100 includes a frame 410 for moving the slider 230 and the base 210 at right angles at all times, the base 210 may be formed so that the inner side (center) does not protrude. . In addition, the inside may be recessed according to the shape of the frame 410 to be applied, or may be a shape in which all or part of the guide part is cut.

In this case, the wire 250 surrounding the outer side at the same time is used to block the inflow of dust from the outside, such as for the case of complete packing of the lubricant when using a highly viscous lubricant, etc. inside the slider 230 and the base 210 It may be placed in.

One or more pressure sensors 220 may be disposed on the circumferential surface of the base 210, and may be disposed on the inner circumferential surface of the slider 230 facing the protrusion for more effectively pressing the pressure sensor 220. Of course, as described above, the formation of the protrusion 240 is not essential, and may vary depending on the type of sensor to be applied and the recognition method of the parallel moved direction.

In addition, although not shown in the drawing, the slider 230 may be combined with an information plate for receiving input information (for example, a click operation or a touch operation) in the vertical direction. The information plate may be implemented by, for example, a touch pad, a touch screen, a printed circuit board (PCB), a flexible printed circuit (FPC), or the like. For example, the slider 230 may be combined with a touch screen module or a touch screen module and a PCB integrated component instead of a keypad PCB. In addition, it can be combined with a specification that can handle vertical inputs such as PCB, FPC coupled to the slider 230, as well as metal domes, poly domes, and EL domes (i.e., a structure in which flex electro luminescence is adhered onto the metal domes). It will be apparent to those skilled in the art.

By providing the information board, even on a small display screen such as a mobile communication terminal or a PDA, the user can conveniently input the touch screen by touching the small button and moving it in a specific direction so that a corresponding signal is output.

In the case of a mobile communication terminal or a PDA having a touch screen function, the display unit area is made small in order to achieve the purpose of miniaturization and portableness. Therefore, the input touch unit area in which the user's touch input is possible is also reduced. In order to solve this problem, a stylus pen or the like is conventionally used. However, according to the present invention, it is possible to mount the touch screen module instead of the PCB on the slider 230, thereby making the input touch area larger than the conventional one, and by moving the touched area in a specific direction, different input signals for the direction can be obtained. (E.g., when the 8-way recognition is performed, the button area is set to the same area in which the eight button areas of the existing touch pad are integrated), so that the area of the finger input touch part can be enlarged even if the touch screen has the same size. There is an advantage.

In addition, when the touch screen module is applied, a coating of, for example, special glass, film, or other paint may be added on the touch screen to prevent a reduction in friction between the touch screen and the finger.

In addition, in the present specification, it is assumed that the slider 230 is stacked and disposed on the upper layer of the base 210. However, the slider 230 may be located inside the base 210. In addition, the shape of the slider 230 does not change greatly in consideration of the fact that the layout of the information board to be mounted does not vary greatly depending on the number of buttons, etc., and serves to allow the information board to be mounted. Can be. In contrast, since the base 210 is coupled to a screw boss, a hook, or a fixing protrusion, the base 210 may be variously changed according to the type, structure, or form of the digital processing apparatus. In addition, in some cases, the frame 410, the slider 230, or the like may be disposed in the base 210.

In addition, a hole is formed in the base 210, the whole or part of the frame 410 is inserted and fixed in the hole, and the slider 230 may be formed to be disposed inside the frame 410.

7 is a view showing an operation process of the key input unit according to an embodiment of the present invention, Figure 8 is a view showing the shape and operation state of the tact switch according to an embodiment of the present invention.

(A) of FIG. 7 shows a state before the slider 230 is moved in parallel, (b) shows the case where the slider 230 is moved to the west, and (c) shows the slider 230 to the northwest. The case of parallel movement is shown.

In the case of (b) in which the slider 230 is moved to the west in parallel, pressure is applied to the pressure sensor 710 disposed to the east of the base 210 by the parallel movement of the slider 230. The pressure sensor 710 outputs a sensing signal, and the controller 130 detects the sensing signal and recognizes that the slider 230 has moved in the opposite direction (ie, west) of the pressure sensor 220 which outputs the sensing signal. Done. This can be easily understood through the fact that the pressure sensor 710 for outputting the sensing signal is disposed in a direction opposite to the parallel movement direction of the slider 230.

In addition, in the case of (b) in which the slider 230 is moved to the northwest in parallel, the pressure is applied to the pressure sensors 710 and 720 disposed on the east and south sides of the base 210 by the parallel movement of the slider 230. Will be added. The pressure sensors 710 and 720 output a sensing signal, and the controller 130 detects the sensing signal and the slider 230 outputs the sensing signal in an opposite direction to the pressure sensors 710 and 720. For example, it is recognized that the direction is opposite to the vector sum direction and moved northwest).

In the case of (b) and (c) described above, the base 210 exists in the original position, but only the slider moves, and the wire 250 simultaneously surrounding the outer side of the base 210 and the slider 230. ) Length is increased, and the elongation of the wire 250 is limited, so that the tact switch 260 fixing both ends of the wire 250 is also subjected to a force in the direction of the wire 250. The contact point at which the lever contacts is varied. Also, in (b) and (c), the degree of deviation between the slider 230 and the base 210 due to the movement of the slider 230 is displayed together.

8 illustrates the shape and operating state of the tact switch 260. The operation state of FIG. 8 is merely an example of a restoration form of the tact switch 260, the coil spring 850, and the like, and is not limited thereto. The tact switch 260 may be restored by various other methods. It is obvious to those skilled in the art.

As illustrated in FIG. 8, the tact switch 260 includes a start contact 810, an end contact 820, a movable contact 830, a tact switch base 840, a coil spring 850, and a trigger ( 860). Since the wire 250 is in contact with the outer surface of the base 210 and the slider 230, the bottom surface of the tact switch base 840 and the trigger 860, which fixes both ends of the wire 250, is also the base ( 210 and the outer surface of slider 230 may be contacted together.

The circle A represents the central axis of the movable contact portion 830 rotates, and the movable contact portion 830 rotates about the groove so as to quickly give a feeling of operation (tactility) of the key button. Circle B represents the position of the center hole of the coil spring 850.

Before the slider 230 moves in any direction, the coil spring 850 pulls the movable contact 830 while the movable contact 830 is in contact with the start contact 810.

When the slider 230 begins to move in any direction, the wire 250 is forced in the direction in which the slider 230 moves so that the trigger 860 is pulled and the trigger 860 is pulled (ie, Due to the tact switch base 840 and the trigger 860 spreading on both sides, the coil spring 850 disposed between the trigger 860 and the protrusion receives a force in the direction in which the trigger 860 is pulled, thereby moving the contact portion. Rotate 830 toward end contact 820. Referring to the operation state diagram shown in FIG. 8, since the movable contact portion 830 is in contact with the end contact portion 820 and is forced until no further deformation of the coil spring 850 is possible, the slider It can be seen that the shape of the coil spring 850 in the state where the 230 is moving is different from other states.

When the slider 230 starts moving and the movable contact 830 and the starting contact 810 fall, information indicating the movement of the slider 230 is input to the controller 130, and the controller 130 controls the slider ( The movement of 230 is detected.

When the movable contact portion 830 contacts the end contact portion 820, a corresponding signal is transmitted to the controller 130 to sense that the parallel movement of the slider 230 has ended, using the sensor signal input up to that point. The controller 130 may recognize a moving direction of the slider 230. That is, the tact switch 230 has a point in time at which contact with the end contact portion 820 is started or a contact with the end contact portion 820 from the time when the movable contact portion 830 is in contact with the start contact portion 810. It can function as a signal counter until the time when the contact with the start contact 810 is resumed without being started. However, as described above, the tact switch 260 and the signal counter may be independently implemented, and each of them may be coupled to the wire 250.

When the user releases the slider 230 after the movable contact 830 comes into contact with the end contact 820, the wire 250 may move (or increase in length) according to the movement of the slider 230. The influence of the force by the user's finger on the trigger 860 that was pulled out is eliminated.

Thus, the coil spring 850 will attempt to return to the section in which its length is shortest (ie, the section in which the movable contact section 830 contacts the start contact section 810) (wherein if the wire 250 is It is obvious that if there was an increase in length due to elongation, it will be restored to its original length), i.e., the trigger 860 fixed to one end of the coil spring 850 as the coil spring 850 returns to its original position is also original. Returning to the position of, the position of the wire 250 in accordance with the return of the trigger 860, the slider 230 also returns to the original position.

The moving direction sensing method and the sensing information input method of the slider 230 will be described in detail with reference to FIGS. 9 and 10.

In the drawings, the tact switch 260 illustrates a case in which the coil spring 850 is used to give the user a feeling of operation (tactility), but in addition to the leaf spring, rubber (including silicone series), magnetic having magnetic properties, etc. Can be used. Of course, it is obvious that the same material can be applied without any limitation as long as the material can achieve the same purpose.

9 is a flowchart illustrating a key input method according to an embodiment of the present invention, and FIG. 10 is a graph illustrating a sensing signal input process according to parallel movement of a slider according to an embodiment of the present invention.

Referring to FIG. 9, in step 910, the controller 130 determines whether there is a key button manipulation.

If there is a key button manipulation, the controller 130 determines whether the manipulation is a parallel movement in operation 920. Whether it is a parallel movement operation may be recognized as whether a detection signal is input from the movement detector 115. As illustrated in FIG. 10, in the case of the parallel movement operation, the length of the wire 250 (or the elongation of the wire 250 is 0, there is no length change, but the pull of the trigger 860 causes the wire 250 and the tact switch ( The length of the entire perimeter formed by 260) will begin to increase. If it is determined that the operation is a parallel movement, the controller 130 proceeds to step 930 and controls the operation of the sensing unit 120 to detect a sensing signal input from the sensing unit 120. For example, the sensors of the sensing unit 120 may be switched to a power-on state by the operation start control of the controller 130.

As shown in step 920, in the present embodiment, the description will be focused on the case where the user selectively performs either the parallel movement operation of the slider 230 or the vertical movement operation of the key button unit 100. Obviously, the combination of the operation and the vertical movement operation can further diversify the input information according to the user operation. This will be described later in detail.

As shown in FIG. 10, as the slider 230 moves, the length of the wire 250 (or the length of the entire circumference formed by the wire 250 and the tact switch 260, hereinafter equal) increases. The sensing signal is received from the sensing unit 120 while the length of the wire 250 is increased.

If it is a parallel movement in either east, west, or north, the sensing signal will be received from one sensor. Also, if the parallel movement in the diagonal direction, the sensing signal will be received from the two sensors. In FIG. 10, although sensing signals are sequentially received from two sensors during parallel movement in a diagonal direction, the sensing signals may be simultaneously received.

In Figure 10, L _O is elongation of the wire 250 or wire 250, and tact represents the initial value of the length of the whole circumference formed by the switch (260), L _O is + L _E is a wire 250, and And / or the maximum value of the length extended by the pull of the trigger 860. Of course, the maximum value may be the same or different in the case of the diagonal parallel movement of the slider 230 and the parallel movement in the north, south, east, and south directions. If it is different, the maximum length of the extended length may be pre-specified to recognize the value of the extended length as the maximum value in the case of parallel movement in the north-west, north-south direction, or to recognize the maximum length by the diagonal parallel movement as the maximum value. Can be. If the extended length of the diagonal parallel movement is longer and designated as the maximum value, if the user operation is a parallel movement in the north, south, east and west directions, the movable contact portion 830 ends contact with the start contact portion 810, The parallel movement may be terminated without contacting the end edge portion 820 and then contacted with the start contact portion 810 again. In such a case, it is determined whether it has returned to the minimum length (that is, whether or not the parallel movement is terminated again in contact with the starting contact portion 810 without being in contact with the end getting portion 820) and received during the period. The sensing direction may be recognized as a sensing signal. Of course, in the case of parallel movement in the north-west, north-west direction and diagonal parallel movement, the base 210 or the like is extended so that the length of the entire circumference formed by the extending wire 250 or the wire 250 and the tact switch 260 is the same. It is obvious that it may be formed.

In step 940, the controller 130 determines whether the current wire 250 has been extended to the maximum length (eg, in contact with the end contact portion 820) or has returned to the minimum length (that is, the end getting portion 820). In the non-contact state, it is determined whether the parallel movement is terminated and the contact point 810 is contacted again. In addition, if the slider 230 is moved in parallel to the maximum distance (ie, parallel movement in the north-west, north-west direction, or parallel movement in the diagonal direction), the movable contact portion 830 of the tact switch 260 is connected to the end contact portion 820. Since the operation of the signal counter will be terminated by the contact, the controller 130 may refer to this. Also, if the maximum movement distance in the diagonal direction is longer than the maximum distance in the parallel movement direction in a specific direction, and the maximum movement distance in the diagonal direction is specified as the maximum distance, the slider 230 does not move to the specified maximum distance. (I.e. perform only parallel movement in one particular direction). In this case, the operation of the signal counter may be terminated by contacting the start contact part 810 again in a state where the end contact part 820 is not in contact, and the controller 130 may refer to this.

If the wire 250 has not elongated to its maximum length or returned to its minimum length, it waits for receiving another sensing signal at step 930.

However, if the wire 250 extends to its maximum length or returns to its minimum length, the process proceeds to step 950 to determine the direction of movement of the slider 230. As described above, the moving direction of the slider 230 may be determined in a direction opposite to the position of the sensor that outputs the sensing signal.

In operation 960, the controller 130 corresponds to an operation command (eg, input of a specific letter / number, selection of a function menu, selection of a direction key, etc.) according to the determined moving direction of the slider 230. Control the operation to be performed.

As a result of the determination in step 920, if the key button manipulation is a vertical movement manipulation (for example, a click manipulation) rather than a parallel movement manipulation, the flow proceeds to step 970 to control to perform an operation corresponding to the manipulation command according to the click gesture recognition. do.

Up to now, the case where the key button unit 100 selectively performs the parallel movement or the vertical movement has been described with reference to FIG. 9.

However, by combining the parallel movement and the vertical movement of the key button unit 100, it is possible to input more various information according to a user's operation. For example, when a vertical input operation is input after the parallel movement of the slider 230, different information may be input to each case, such as when a parallel movement is performed after the vertical input operation of the slider 230. In this case, even if the sensing signal from the sensing unit 120 is detected by the parallel movement of the slider 230, only when there is a vertical movement (that is, the detected sensing signal is suspended until there is a vertical movement). It may be detected and recognized as a valid sensing signal.

Hereinafter, a method of combining the parallel movement and the vertical movement of the key button unit 100 to enable the input of more various information according to the user's operation will be described in detail with reference to each signal input point.

According to the present invention, after the contact between the movable contact 830 and the start contact 810 is released, various time points at which the sensing signal and the vertical input signal are input may vary.

First, the sensor signal may be detected before the vertical input signal after the movable contact 830 is separated from the start contact 810. Alternatively, the vertical input signal may be detected before the sensor signal after the movable contact 830 is separated from the start contact 810. Alternatively, the vertical input signal may be input before the movable contact 830 falls from the start contact 810.

The above-described cases are processed based on a sensor signal or a vertical input signal inputted at or after the movable contact portion 830 contacts the end contact portion 820. Of course, as described above, depending on how to determine the maximum value of the length of the entire circumference formed by the wire 250 or the wire 250 and the tact switch 260, the state is not in contact with the end portion 820 In this case, the parallel movement may be terminated and contacted with the start contact unit 810 again, and the processing method in this case may be easily understood through the above description.

In other cases, the vertical input signal may not be detected in the entire cycle from the moment when the movable contact 830 is separated from the start contact 810 to the point of contact with the end contact 820. In this case, the control unit 130 does not perform the processing of the input result according to the user's operation immediately after the movable contact unit 830 touches the end contact unit 820, and if the vertical input signal is input thereafter, Will be processed.

The above-described cases are methods for processing irrespective of the input order of the vertical input signal and the sensor signal, but may also consider the input order of the vertical input signal and the sensor signal. For example, when a vertical input signal is input first and then a sensor signal is input (that is, parallel movement is completed), a, b, c or d may be set to be input according to the moving direction of each slider 230, and the sensor signal may be input. When the first input signal is input and the vertical input signal is input, p, q, r or s may be set according to the moving direction of each slider 230.

As another example, by considering both the vertical signal input and the sensor signal input sequence in the bank's password customer input system or the digital door lock password input, the number of applicable passwords (ie, the same button usage range) is more than doubled. It can be increased, and the security effect can be maximized by diversifying and complicating the security element by the operation with small external exposure such as vertical input or parallel movement.

11 is a plan view of a key input unit according to another embodiment of the present invention.

11 illustrates a case in which both ends of the wire 250 are fixed by the tension sensing unit 1110, unlike the configuration of the movement sensing unit 115 described above.

The tension detecting unit 1110 may be a sensor in which the wire 250 is extended by the parallel movement of the slider 230, and both ends of the extending wire 250 detect and output a force that is to be separated from each other.

When the tension detecting unit 1110 detects a force according to the extension of the wire 250, the tension sensing unit 1110 may output a sensing signal corresponding thereto, and the controller 130 may recognize the parallel movement of the slider 230 by the input sensing signal. .

Alternatively, the tension sensing unit 1110 is a variable resistor that outputs a resistance value or a current value as the wire 250 is extended by the parallel movement of the slider 230 and both ends of the elongated wire 250 are separated from each other. It may be wealth. The controller 130 may recognize the parallel movement of the slider 230 by the resistance value or the current value output from the tension sensing unit 1110.

In this case, the controller 130 determines that the slider 230 moves in parallel with reference to the information input from the tension sensing unit 1110, and then controls to start the operation of the sensing unit 120. Subsequently, when a signal indicating that the slider 230 has returned to its original position or a signal indicating that the slider 230 has moved to the maximum distance is input from the tension sensing unit 1110, the operation of the sensing unit 120 is performed. After that, the direction of parallel movement of the slider 230 is determined in consideration of the positions of the sensors that output the sensing signal.

12 is a plan view of a key input unit according to another embodiment of the present invention.

As illustrated in FIG. 12, the pressure sensor 220 illustrated in FIG. 2 or the like may be replaced with the distance sensor 1220. In the drawing, it is assumed that the distance sensor 1220 is provided in the slider 230, but may be provided in the base 210. In addition, the distance sensor 1220 may be disposed in a groove formed in the base 210 or the slider 230 to be protected from the rapid movement of the slider 230.

The distance sensor may output a sensing signal when the distance to the side wall of the base 210 facing is less than or equal to a reference value. Here, the reference value may be set to, for example, zero (zero) to measure the time of full contact, or 0.5mm or the like to measure the proximity within a predetermined range. Of course, the reference value may be variously specified by a design method, an operating characteristic, or the like.

In addition, the slider 230 and the base 210 may be spaced apart by a certain distance by the elastic body 1210 in order to return the slider 230 moved in a specific direction to its original position. If the slider 230 is moved in a specific direction, it will be apparent that the slider 230 will be returned to its original position by the elastic force of the elastic body 1210.

In this case, the elastic body 1210 may be replaced with an elastic force (bending terminal terminal, etc.) that the sensor itself has in some cases.

In addition, the sensors disposed on the base 210 may be disposed outside the key button unit, that is, on the inner circumferential surface of the groove in which the key button unit is disposed. In this case, the sensors may be operated by the pressure applied by the protrusion formed on the outer wall or the outer wall of the slider 230 according to the parallel movement of the slider 230.

13 and 14 are block diagrams of a digital processing apparatus according to other embodiments of the present invention.

The movement sensing unit 115 or the tension sensing unit 1110 may be replaced with the touch sensing unit 1310 illustrated in FIG. 13 or the push sensing unit 1410 illustrated in FIG. 14.

The touch sensing unit 1310 illustrated in FIG. 13 includes a touch sensor, and the touch sensor detects whether a user's finger touches the key button cover and outputs a corresponding sensing signal. This utilizes the characteristic that the user's finger must be in contact with the key button in order to operate the key button.

The controller 130 controls the operation of the sensing unit 120 to be maintained while the sensing signal is input from the touch sensor (ie, while the user's finger is touched).

The push detector 1410 illustrated in FIG. 14 outputs corresponding information when the user vertically moves the key button (ie, a click operation). That is, the user may first apply the vertical movement of the key button, and then move the key button in parallel in a direction for inputting a desired user command.

The controller 130 controls the operation of the sensing unit 120 to be maintained while the sensing signal is input from the push sensing unit 1410 (that is, while the user presses a key button).

After the information is input from the touch sensing unit 1310 or the touch sensing unit 1410, the sensors may be started after a predetermined delay time according to conditions such as the initial distance of the sensors and other operation types. You may.

15 is a combined perspective view of a key input unit according to another embodiment of the present invention, FIG. 16 is a combined perspective view of a key input unit according to another embodiment of the present invention, and FIG. 17 is another embodiment of the present invention. 2 is a diagram illustrating an operation state of a key input unit according to the embodiment.

As illustrated in FIGS. 15 and 16, the key input unit 100 includes a magnet 1510, a base 210, bearings 1520, 1530 and 1540, a first contact 1550, a frame 410, A slider 230, a second contact 1560, a wire 250, and a tact switch 260 are included.

The magnet 1510 is fixed to the bottom of the base 210 and serves as a retainer for positioning the bearings 1520, 1530, and 1540 positioned on the top of the base 210.

The bearings 1520, 1530, and 1540 minimize side friction between the slider 230 and the frame 410, the frame 410, and the base 210 when the slider 230 moves in parallel.

The bearings 1520, 1530, and 1540 are provided between the base 210 and the slider 230 to parallel the vertical bearings 1520 and the slider 230 to minimize frictional force with the base 210 when the slider 230 is moved in parallel. The first horizontal bearing 1530 minimizes the lateral frictional force with the frame 410 when moving and the second horizontal bearing 1540 minimizes the lateral frictional force between the frame 410 and the base 210 during parallel movement of the slider 230. Are distinguished. As illustrated in FIG. 16, the first horizontal bearing 1530 is disposed between the frame 410 and the slider 230, and the second horizontal bearing 1540 is disposed between the base 210 and the frame 410. do. In addition, the first horizontal bearing 1530 and the second horizontal bearing 1540 are disposed in directions not overlapping with each other. For example, if the first horizontal bearing 1530 is disposed in SIDE A and SIDE C, the second horizontal bearing 1540 is disposed in SIDE B and SIDE D. Of course, the arrangement of the first horizontal bearing 1530 and the second horizontal bearing 1540 may be variously modified.

A magnet 1510 is disposed under each of the bearings 1520, 1530, and 1540 to allow the bearings 1520, 1530, and 1540 to return to their original positions after the parallel movement of the slider 230 is completed. In the key input unit 100 according to the present invention, since the operating stroke is small, the bearing balls of the bearings 1520, 1530, and 1540 are always pulled by the magnet 1510, and the parallel movement of the slider 230 is performed. After this is completed, the magnetic force is returned to its original position, which does not require a separate retainer.

The first contact portion 1550 is disposed above the protruding portion of the base 210, and is disposed to contact the second contact portion 1560 disposed above the slider 230 when the slider 230 is moved in parallel. The first contact unit 1550 and the second contact unit 1560 may be implemented as sensors having various shapes illustrated in the above-described embodiments. In addition, the first contact portion 1550 and the second contact portion 1560 are formed of a metal, and when the first contact portion 1550 and the second contact portion 1560 contact with each other, a current passes through the first contact portion 1550 and the second contact portion. The contact of contact 1560 may be recognized.

15 and 16 illustrate a slider 230 that is lighter than that illustrated in the embodiments described above. That is, the slider 230 may be implemented in the form of a cover described above, but may be implemented in a thin manner so as to be disposed on the outer portion of the base. By reducing the weight of the slider 230, the mass can be reduced, resulting in a reduction in the initial operating force.

The slider 230 may be formed in a structure to be coupled to a key button cover (key top) disposed on the upper surface of the corresponding key input unit 100. That is, as illustrated in FIG. 15, the support 1570 is formed at a predetermined position on the outer surface of the slider 230 so that the key button cover (key top) is located in the internal space partitioned by the support 1570. Can be. Alternatively, the support 1570 formed on the slider 230 may be inserted into a groove formed in the key button cover to be coupled to each other. Alternatively, the key button cover is positioned in the internal space partitioned by the support 1570 of the slider 230, and the protrusions formed on the key button cover are inserted into the holes 1580 formed in the slider 230 to be coupled to each other. It may be.

In FIG. 17, an operation state of the key input unit 100 is illustrated. For reference, (a) indicates the state before the slider 230 is moved in parallel, (b) indicates the state in which the slider 230 moves to the west, and (c) indicates the slider 230 moves to the north. One state is shown, and (d) shows a state in which the slider is moved northeast. When the slider 230 moves in a specific direction, the wire 250 is stretched by a predetermined elongation, or the moving space of the slider 230 by the coil spring in the tact switch 260 even if the elongation of the wire 250 is zero. This can be secured as described above.

As illustrated in (b), when the slider 230 moves to the west, the frame 410 is also moved to the west by the first horizontal bearing 1530, and when the frame 410 moves, the second horizontal bearing ( The side friction between the frame 410 and the base 210 is minimized by the 1540. In this case, the controller 130 may detect that the slider 230 has moved to the west by the contact between the first contact unit 1550 and the second contact unit 1560 positioned in the east.

As illustrated in (c), when the slider 230 moves north, the side frictional force between the slider 230 and the frame 410 is minimized by the first horizontal bearing 1530. At this time, the controller 130 may detect that the slider 230 has moved to the north by the contact between the first contact unit 1550 and the second contact unit 1560 located in the south.

Similarly, as illustrated in (d), when the slider 230 moves to the northeast, the frame 410 is also moved east by the first horizontal bearing 1530, and the second horizontal when the frame 410 moves. The side bearing friction between the frame 410 and the base 210 is minimized by the bearing 1540. In addition, the lateral frictional force between the slider 230 and the frame 410 is minimized by the first horizontal bearing 1530 in moving north. In this case, the controller 130 may detect that the slider 230 has moved to the northeast by the contact between the first contact portions 1550 and the second contact portions 1560 positioned in the west and the south, respectively.

18 and 19 illustrate a digital processing apparatus equipped with a key input unit according to embodiments of the present invention.

The key button to which the key input unit is applied may allow specific functions to be assigned to each of the eight directions as illustrated in FIG. 18, and as illustrated in FIG. 19, six directions (or eight directions and six vertical input buttons). You can have specific functions assigned to each one. Of course, the number of directions for allowing a specific function to be designated using the corresponding key button can be freely set and implemented, and it is obvious that the click operation according to the vertical movement can be implemented.

The user can cause any one function menu to be executed by moving the key button to which the above-described key input unit is applied in parallel in a specific direction. In addition, when additionally designating a specific function for the rotation operation (ie, the sequential change of the parallel movement direction), the user may execute more function menus using a single key button.

In addition, if each key button for inputting numbers / letters and the like is implemented as a key input unit according to the present invention, it is obvious that the same function can be implemented by a smaller number of key buttons. It has the advantage of being able to minimize the area of the area for.

Although the above has been described with reference to embodiments of the present invention, those skilled in the art may variously modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. And can be changed.

1 is a block diagram of a digital processing apparatus according to an embodiment of the present invention.

2 is a perspective view of a key input unit according to an embodiment of the present invention.

3 is a front view of a key input unit according to an embodiment of the present invention.

4 and 5 are combined perspective views of a key input unit according to an embodiment of the present invention.

6 is a cross-sectional view of a key input unit according to an embodiment of the present invention.

7 is a view showing an operation process of a key input unit according to an embodiment of the present invention.

8 is a view showing the shape and operation state of the tact switch according to an embodiment of the present invention.

9 is a flowchart illustrating a key input method according to an embodiment of the present invention.

10 is a graph illustrating a sensing signal input process according to parallel movement of a slider according to an embodiment of the present invention.

11 is a plan view of a key input unit according to another embodiment of the present invention.

12 is a plan view of a key input unit according to another embodiment of the present invention.

13 and 14 are block diagrams of digital processing apparatuses according to other embodiments of the present invention.

15 is a perspective view of a combination of a key input unit according to another embodiment of the present invention.

16 is a perspective view of a combination of a key input unit according to another embodiment of the present invention.

17 is a diagram illustrating an operating state of a key input unit according to another embodiment of the present invention.

18 and 19 illustrate a digital processing apparatus equipped with a key input unit according to embodiments of the present invention.

Claims (44)

A key button unit for inputting a user operation command according to a moving direction, A base fixed to a center position of the key button unit; A slider for moving in parallel to the horizontal plane of the base by user manipulation; A frame supporting the slider to move in parallel; And And a restoration processing unit for providing resistance to parallel movement of the slider and causing the parallel moved slider to return to its original position. The method of claim 1, The frame is disposed between the base and the slider, the key button unit, characterized in that the base and the slider in vertical contact with the oblique surface of the frame. The method of claim 1, And an information plate coupled to an upper portion of the slider to detect vertical movement of the key button unit by the user operation. The method of claim 3, And the information plate is formed of at least one of a touch pad, a touch screen, a printed circuit board (PCB), and a flexible printed circuit (FPC). The method of claim 1, The restoration processing unit, A wire that simultaneously wraps the base and the outer side of the slider in a C shape; And And a movement detecting unit for fixing both ends of the wire. The method of claim 1, A wire inserted into each of the C-shaped grooves formed inside the base and the slider to simultaneously surround the base and the slider; And And a movement detecting unit for fixing both ends of the wire. The method of claim 5, The key button unit further comprises n sensors (arbitrary natural numbers) spaced apart from the inner periphery of the slider formed in an annular shape. The method of claim 7, wherein And the n sensors are operated by a detection signal of a movement detection unit that detects an extension of a wire according to the parallel movement of the slider. The method of claim 1, The center portion of the base is formed higher than the outer portion, the key button unit, characterized in that arranged in such a way that the center portion is inserted into the inner groove of the slider formed in a ring shape. The method of claim 9, And the restoring processing unit is an elastic body that allows the outer peripheral portion of the central portion and the inner peripheral portion of the slider to be spaced apart by a predetermined distance. The method of claim 9, The key button unit further comprises n (arbitrary natural numbers) sensors spaced apart from the outer peripheral portion of the central portion or the inner peripheral portion of the slider. The method according to claim 7 or 11, wherein And the sensor is at least one of a touch sensor, a pressure sensor, and a distance sensor. The method according to claim 5 or 6, And the movement detecting unit is at least one of a tact switch, a tension detector, a variable resistor, and a terminal having elasticity. The method according to claim 5 or 6, The wire is a key button unit, characterized in that the elongation (伸 率, elongation rate) is formed of a material that is zero (zero) or limited to a predetermined value or less. The method according to claim 7 or 11, wherein Further comprising a push detection unit for detecting a pressing state according to the vertical movement of the key button unit, And the n sensors are operated by the pressing state detection signal output of the pressing detection unit. The method according to claim 7 or 11, wherein A key button cover coupled to the slider and disposed above the key button unit; And Including a touch sensing unit for detecting whether the user touches the key button cover, And the n sensors are operated by the touch state sensing signal output of the touch sensing unit. The method of claim 1, A key support unit is formed at a predetermined outer portion of the slider, and a key button cover is arranged in a space partitioned by the support. The method of claim 1, A support is formed in a predetermined portion of the outer portion of the slider, the support is inserted into the groove formed in the key button cover, the key button unit, characterized in that to be mutually coupled. The method of claim 1, Holes or protrusions and supports are formed at predetermined outer portions of the slider, and a key button cover is disposed in a space partitioned by the support, and a protrusion or hole formed under the key button cover is a hole of the slider or Key button unit characterized in that it is mutually coupled with the projection. The method of claim 1, The key button unit further includes an outer horizontal bearing disposed at a predetermined position between the frame and the slider. The method of claim 20, Further comprising an inner horizontal bearing disposed at a predetermined position between the frame and the center of the base, And the inner horizontal bearing and the outer horizontal bearing are respectively disposed in different directions with respect to the center portion. The method of claim 21, And a magnet is disposed under the base such that at least one of the inner horizontal bearing, the outer horizontal bearing, and the vertical bearing disposed between the lower part of the slider and the upper surface of the base is returned to its original position after movement. Key button unit to say. A digital processing apparatus having a key button for inputting a user operation command according to a moving direction, Key button unit; And And a control unit for recognizing a reverse direction of an arrangement position of one or more sensors or a reverse direction of a vector sum as a moving direction of a slider with reference to a sensing signal input from the key button unit, The key button unit, A base fixed to a center position of the key button unit; A slider for moving in parallel to the horizontal plane of the base by user manipulation; A frame supporting the slider to move in parallel; And And a restoration processor for providing resistance to parallel movement of the slider and causing the parallel moved slider to return to its original position. The method of claim 23, wherein The restoration processing unit, A wire that simultaneously wraps the base and the outer side of the slider in a C shape; And And a movement detector for fixing both ends of the wire. The method of claim 24, And n (random natural numbers) sensors spaced apart from the inner periphery of the slider formed in an annular shape. The method of claim 23, wherein The restoration processing unit, A wire inserted into each of the C-shaped grooves formed inside the base and the slider to simultaneously surround the base and the slider; And And a movement detector for fixing both ends of the wire. The method of claim 23, wherein The frame is disposed between the base and the slider, the digital processing device, characterized in that the base and the slider in vertical contact along the oblique surface of the frame. The method of claim 23, wherein And an information plate coupled to an upper portion of the slider to detect vertical movement of the key button unit by the user operation. The method of claim 23, wherein The center of the base is formed higher than the outer portion, the digital processing device, characterized in that arranged in such a way that the center is inserted into the inner groove of the slider formed in a ring shape. The method of claim 29, And the restoration processing unit is an elastic body which allows the outer peripheral portion of the central portion and the inner peripheral portion of the slider to be spaced apart by a predetermined distance. The method of claim 29, And n (random natural numbers) sensors spaced apart from the outer periphery of the central portion or the inner periphery of the slider. The method of claim 24, And the n sensors are operated by a detection signal of a movement detection unit that detects an extension of a wire according to parallel movement of the slider. The method of claim 24, And the movement detecting unit is at least one of a tact switch, a tension detector, a variable resistor, and a terminal having elasticity. The method of claim 24, The wire is a digital processing apparatus, characterized in that the elongation is formed of a material that is zero (zero) or limited to less than a predetermined value. 32. The method of claim 25 or 31, Further comprising a push detection unit for detecting a pressing state according to the vertical movement of the key button unit, And the n sensors are initiated by the push state detection signal output of the push detection unit. 32. The method of claim 25 or 31, A key button cover coupled to the slider and disposed above the key button unit; And Further comprising a touch sensing unit for detecting whether the user touches the key button cover, And the n sensors are operated by the touch state sensing signal output of the touch sensing unit. The method of claim 23, wherein A support is formed at a predetermined outside portion of the slider, and a key button cover is arranged in a space partitioned by the support. The method of claim 23, wherein A support is formed at a predetermined outside portion of the slider, and the support is inserted into a groove formed in the key button cover so as to be mutually coupled. The method of claim 23, wherein Holes or protrusions and supports are formed at predetermined outer portions of the slider, and a key button cover is disposed in a space partitioned by the support, and a protrusion or hole formed under the key button cover is a hole of the slider or And digitally coupled to the projections. The method of claim 23, wherein And an outer horizontal bearing disposed at a predetermined position between the frame and the slider. The method of claim 40, Further comprising an inner horizontal bearing disposed at a predetermined position between the frame and the center of the base, And the inner horizontal bearing and the outer horizontal bearing are respectively disposed in different directions with respect to the center portion. The method of claim 41, wherein And a magnet is disposed under the base such that at least one of the inner horizontal bearing, the outer horizontal bearing, and the vertical bearing disposed between the lower part of the slider and the upper surface of the base is returned to its original position after movement. Digital processing unit. In the recording medium in which a program of instructions that can be executed in a digital processing apparatus for performing a key input method is tangibly embodied, and which records a program that can be read by the digital processing apparatus, Receiving a parallel movement start signal of the slider; Receiving a sensing signal from one or more sensors provided in the key button unit; And Recognizing the reverse direction of the arrangement position of the sensor output the sensing signal or the reverse direction of the vector sum as the movement direction of the slider, The key button unit, A base fixed to a center position of the key button unit; A slider for moving in parallel to the horizontal plane of the base by user manipulation; A frame supporting the slider to move in parallel; And And a reconstruction processing unit for providing resistance to the parallel movement of the slider and causing the parallel moved slider to return to its original position. The method of claim 43, And when the parallel movement start signal of the slider is received, controlling the sensors provided in the key button unit to start operation.

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