KR102180661B1 - User input apparatus based on pressure and 3d wireless presentor uing the same - Google Patents

Abstract

The present invention relates to a user input device using a plurality of head pressure sensors that are pressurized according to a user's manipulation, and a 3D wireless presenter using the same. For this purpose, one side of the directional shaft is movable in all directions with the directional shaft as a central axis. A button disk having a plurality of pressing protrusions in a region adjacent to the directional button to which the central portion is coupled to the button hemisphere and the central portion of the lower surface to which the other side of the directional shaft is coupled to the upper surface, and the region in which the plurality of pressing protrusions are formed A flexible substrate having a plurality of head pressure sensors in a corresponding area, a center hole in a position corresponding to the center of the lower surface, and transmitting pressure signals sensed by the plurality of head pressure sensors to a circuit unit, and the center A support plate on which a hollow spherical part having a seating hole is formed at a position corresponding to the hole, and is coupled to the directional shaft, and is coupled to the seating hole through the central hole, so that the directional button moves in an arbitrary direction and then returns to the central axis. It provides a pressure-based user input device including an elastic member to be restored as possible.

Description

Pressure-based user input device and 3D wireless presenter using it {USER INPUT APPARATUS BASED ON PRESSURE AND 3D WIRELESS PRESENTOR UING THE SAME}

The present invention relates to a pressure-based user input device and a wireless presenter using the same.

In recent years, not only the spread of information devices using various touch-based user interfaces, including smart phones/tablets, but also the spread of VR devices based on motion/gesture recognition are also active.

However, despite the proliferation of such information devices, a user interface device that provides various functions and utility still has a limitation that is executed only by a direct touch on a display.

In recent years, with the development of computers, various application programs for presentations that can be easily edited and created and displayed through a display device such as conferences, research presentations, lectures, presentations, and lectures have been developed and used.

On the other hand, the presentation document created by such a presentation application program will be described while the presenter manipulates the keyboard of the computer to make the page up/down.

In this way, when operating using a computer keyboard, there is a problem that the presenter's activity radius is limited by the keyboard position. To solve this problem, laser pointing that can wirelessly output a phaser up/down control signal while having a wireless mouse function recently The device was developed.

Most of these devices are laser points pointing to a specific area during presentation, and wireless presenter products that enable page movement during presentation have appeared. In particular, products that enable work such as highlighting or expanding a specific area while moving like an air mouse by internalizing an acceleration sensor have also appeared.

However, the 3D space control technology based on the acceleration sensor has a disadvantage in that the pointer of the screen moves in proportion to the moving speed of the wrist, and thus, the user can easily control the screen.

Republic of Korea Patent Publication No. 10-2008-0099385 (published on November 13, 2008)

The present invention provides a pressure-based user input device capable of various inputs by sensing pressure according to a user's manipulation.

In addition, the present invention provides a 3D wireless presenter to which a pressure-based user input device is applied.

In order to solve the above-described problem to be solved, the pressure-based user input device according to an embodiment of the present invention includes a direction button coupled to one side of the direction shaft to enable movement in all directions with the direction shaft as a central axis. , A button disk having a plurality of pressing protrusions in an area adjacent to the button hemisphere portion and the center of the lower surface to which the other side of the directional shaft is coupled to the upper surface, and a plurality of head pressures in an area corresponding to an area in which the plurality of pressing protrusions are formed A flexible substrate having a sensor and having a center hole at a position corresponding to the center of the lower surface, transmitting the pressure signals sensed by the plurality of head pressure sensors to the circuit unit, and a seating hole at a position corresponding to the center hole It may include a support plate having a hollow spherical portion formed, and an elastic member coupled to the direction shaft and coupled to the seating hole through the center hole to restore the direction button to be returned to the center axis after being moved in an arbitrary direction. have.

According to an embodiment of the present invention, the plurality of pressing protrusions are formed in the vertical, left and right directions with respect to the center of the lower surface, and the plurality of head pressure sensors correspond to the positions in which the plurality of pressing protrusions are formed. It can be formed in the vertical, left and right directions.

According to an embodiment of the present invention, the head pressure sensor has a donut shape formed in a region spaced apart from the center hole by a predetermined amount, and the flexible substrate is a head pressure sensor pressed by a pressing protrusion according to an operation of the direction button. Information about the location of may be transmitted to the circuit unit.

According to an embodiment of the present invention, the head pressure sensor is a material having a piezoelectric effect in which resistance is changed by being deformed as pressure is applied by the pressure protrusion, and the flexible substrate applies current to the material, and the material A voltage that changes according to a change in resistance of may be applied to the circuit unit as the pressure signal.

According to an embodiment of the present invention, the head pressure sensor has a diameter of 1.5-2.5mm and a thickness of 0.2mm-0.4mm, and may be composed of a pressure sensor block capable of detecting a pressure range of 50gf-2kgf and a level of 512 or higher.

According to an embodiment of the present invention, a 3D wireless presenter is provided in which the pressure-based user input device as described above is combined.

According to the above-described problem solving means of the present invention, by providing a pressure-based user input device capable of various inputs by sensing pressure according to the user's direction manipulation, various types of input may be possible through a simple manipulation of the user.

1 is a front view of a 3D wireless presenter according to an embodiment of the present invention.
2 is a cross-sectional view taken along AA′ of FIG. 1.
3 is an exploded perspective view of a 3D wireless presenter according to an embodiment of the present invention.
4 is a diagram for explaining a combined structure of a 3D wireless presenter according to an embodiment of the present invention.
5 is an exploded perspective view of a user input device of a 3D wireless presenter according to an embodiment of the present invention.
6 and 7 are diagrams for explaining an operation of a user input device of a 3D wireless presenter according to an embodiment of the present invention.
8 is a diagram illustrating a structure of a head pressure sensor of a user input device according to another embodiment of the present invention.

Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings. The following detailed description is provided to aid in a comprehensive understanding of the methods, devices, and/or systems described herein. However, this is only an example and the present invention is not limited thereto.

In describing the embodiments of the present invention, when it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention and may vary according to the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout this specification. The terms used in the detailed description are only for describing embodiments of the present invention, and should not be limiting.

Hereinafter, a 3D wireless presenter capable of performing 3D control by sensing a pressure in a predetermined direction according to a user's manipulation will be described with reference to the accompanying drawings.

1 is a front view of a 3D wireless presenter according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along AA′ of FIG. 1, and FIG. 3 is an exploded perspective view of a 3D wireless presenter according to an embodiment of the present invention. 4 is a diagram for explaining a combined structure of a 3D wireless presenter according to an embodiment of the present invention, and FIG. 5 is an exploded perspective view of a user input device of the 3D wireless presenter according to an embodiment of the present invention, and FIGS. 6 and 7 are A diagram for explaining an operation of a user input device of a 3D wireless presenter according to an embodiment of the present invention, and FIG. 8 is a diagram illustrating a structure of a head pressure sensor of a user input device according to another embodiment of the present invention.

1 to 8, the 3D wireless presenter 10 may be composed of a user input device 100, a main body case 200, a decor button 300, a circuit part 400, a terminal part 500, etc. have.

First, the user input device 100 may transmit signals sensed by the plurality of head pressure sensors 131 to the circuit unit 400 according to a user's manipulation. Specifically, the user input device 100 may transmit a pressure signal sensed by each of the plurality of head pressure sensors 131 to the circuit unit 400 according to a user's manipulation.

The user input device 100 according to an embodiment of the present invention includes a direction button 110 that a user can manipulate in all directions, a direction shaft 111 having one side connected to the center of the direction button 110, and the button shaft 110. Button hemisphere 112 to which the other side is inserted and coupled, button disk 113 on which the button hemisphere 112 to which the directional shaft 110 is coupled to the upper surface is formed, and up, down, left and right directions from the center of the lower surface of the button disk 113 A flexible substrate 130 and a central hole 132 having a central hole 132 through which a pressure protrusion 114 and a head pressure sensor 131 are formed and the elastic member 120 is inserted therethrough. It may be composed of a support plate 150 formed with a hollow spherical portion 151 having a mounting hole 152 through which the elastic member 120 can be seated therethrough. Here, the flexible substrate 130 and the support plate 150 may be attached to each other using a double-sided tape 140, and the flexible substrate 130 is connected to the circuit unit 400 and sensed by the head pressure sensor 131. A signal, that is, a pressure signal may be transmitted to the circuit unit 400.

The head pressure sensor 131 according to the embodiment of the present invention may be formed at a corresponding position of the pressure protrusion 114. Specifically, the head pressure sensor 131 may be formed in a position corresponding to the pressing protrusions 114 formed in the upper, lower, left, and right, that is, in the vertical, left, and right directions from the center of the flexible substrate 130.

The head pressure sensor 131 according to the embodiment of the present invention has a diameter of 1.5-2.5mm and a thickness of 0.2mm-0.4mm to be mounted on the 3D wireless presenter 10, and has a pressure range of 50gf-2kgf and a level of 512 or higher. It has a detectable pressure sensor block, and can measure pressure using the piezoelectric effect.

When a pressure measurement method using the piezoelectric effect applied to the head pressure sensor 131 is described, when physical pressure is applied to a specific material solid having a piezoelectric effect, an electrical polarization phenomenon occurs, and at this time, voltage is applied to both sides of the material. When you hang it, its shape changes. The material under pressure from the outside is hollowed out by its flexibility and the structure in which the inside is vacuumed, and the diffusion resistance expands and contracts in accordance with the movement of the base and the resistance value changes. Since this diffusion resistor is formed on the flexible substrate 130 through which a constant current flows, a voltage difference occurs before and after the resistance. The flexible substrate 130 transmits this voltage difference to the circuit unit 400.

One side of the elastic member 120 is coupled to the lower surface of the directional button 110 and is coupled through the button hemisphere 112 and the button disk 113 while surrounding the directional shaft 111, and the other side is the central hole ( It may be connected in a structure that penetrates through 132 and is seated in the seating hole 152, for example, a spring, but is not limited thereto. Through this structure, when the user manipulates the direction button 110 in a specific direction, the direction button 110 moves in a specific direction with the direction shaft 111 as the central axis, and the elastic member 120, for example, the restoring force of the spring. It can return to the original position by.

The user input device 100 having the structure as described above is coupled to a trench having a hole in the center of an assembly in which the upper front case 210 and the upper rear case 220 are assembled (hereinafter referred to as'first assembly'). Can be formed. Specifically, the direction button 110 is positioned at a position spaced apart from the trench by a predetermined distance, the direction shaft 111 is inserted into the central hole of the trench, and the button hemisphere 112 is provided with the upper front case 210 and It may be supported by a guide formed on the upper side of the upper rear case 220. To this end, the ends of the guides formed on the upper front case 210 and the upper rear case 220 are not only easily combined with the button hemisphere 112, but also the button hemisphere according to the movement of the direction button 100. In order to facilitate the movement of the part 112, it may have a shape of a fan-shaped arc corresponding to a hemispherical shape.

In addition, a button disk 113, a flexible substrate 130, and a support plate 150 may be formed in the inner space of the first assembly.

A detailed description of a process in which the user input device 100 having the above-described structure operates according to a user's manipulation is as follows.

First, when the user manipulates the direction button 110 in the left direction, the button disk 113 coupled with the direction button 110 and the direction shaft 111 moves to the left, and thus the lower surface of the button disk 113 The pressing protrusion 114 formed in the left direction of the portion presses the head pressure sensor 131 formed in the upward direction of the flexible substrate 130. Accordingly, the flexible substrate 130 transmits a pressure signal sensed by each of the head pressure sensors 131, that is, a voltage change, to the connected circuit unit 400. In addition, while the head pressure sensor 131 is pressed, the direction button 110 returns to its original position by the restoring force of the elastic member 120. Meanwhile, the flexible substrate 130 has a pressure signal sensed by the head pressure sensor 131 formed at a position corresponding to the pressure protrusion 114 in the left direction, and the remaining head pressure sensors 131, that is, in the right, upper, and lower directions. The signal sensed by the head pressure sensor 131 formed in is also transmitted to the circuit unit 400.

On the other hand, when the user presses the direction button 110 in a downward direction, all the pressing protrusions 114 press the head pressure sensor 131 as the direction disk 113 moves downward. Accordingly, the flexible substrate 130 transmits a pressure signal sensed by each head pressure sensor 131 to the circuit unit 400.

When the user operates the direction button 110 in the direction between the upper side and the left side, the pressing protrusion 114 of the direction disk 113 enjoys the head pressure sensor 131 in the upper and left directions. Accordingly, the flexible substrate 130 transmits the pressure signals sensed by the head pressure sensors 131 in the upper and left directions as well as the pressure signals sensed by the head pressure sensors 131 in the lower and right directions to the circuit unit 400. To pass on.

Through the above-described operation, the user input device 100 may transmit a pressure signal according to various types of user manipulation to the circuit unit 400 through the flexible substrate 130.

As described above, when the direction button 110 is operated, the guide formed on the upper side of the upper front case 210 and the upper rear case 220 restricts the movement of the direction button 110 as well as the button hemisphere 112 )) can be restricted. Through this, it is possible to prevent the pressure protrusion 114 from severely pressing the head pressure sensor 131 of the flexible substrate 130.

In an embodiment of the present invention, the pressure signal sensed by the head pressure sensor 131 may mean a voltage change corresponding to a resistance change according to the deformation of the head pressure sensor 131.

According to the embodiment of the present invention as described above, it has been described for example that the head pressure sensor 131 is formed in the vertical, left, and right directions of the flexible substrate 130 in the vertical direction, but as shown in FIG. 8, It may be formed in a donut shape in an area adjacent to the center hole 132 of the flexible substrate 130. Specifically, a donut-shaped head pressure sensor 131a may be formed in a position spaced apart by a predetermined interval in the center hole 132.

In this case, the flexible substrate 130 transmits a pressure signal (eg, a voltage change signal in a specific region) at a position corresponding to a specific portion of the head pressure sensor 131a pressed by the pressure protrusion 114 to the circuit unit 400 Can be passed on.

In this case, the circuit unit 400 may determine which part of the head pressure sensor 131a is pressed based on the pressure signal, and then transmit a corresponding signal to the outside. To this end, the circuit unit 400 stores information on the shape of the donut of the head pressure sensor 131a, and may read a region in which the voltage is changed based on this information and transmit a signal corresponding thereto to the outside. For example, the flexible substrate 130 detects a voltage change corresponding thereto as the area corresponding to the upper direction of the head pressure sensor 131a is pressed, and then transmits it to the circuit unit 400, and the circuit unit 400 By recognizing that the direction button 110 has moved upward based on the voltage change signal, a signal corresponding to the upward direction may be generated and transmitted to the outside.

The main body case 200 may include an upper front case 210, an upper rear case 220, a lower case 230, a bottom case 240, and the like.

The body case 200 includes a decor button 300 of the circuit unit 400 in the inner space of the assembly (hereinafter referred to as'first assembly') in which the upper front case 210 and the upper rear case 220 are assembled. The seated main substrate 410, a battery (eg, a rechargeable battery) 430, and a socket (eg, a USB socket) 510 of the terminal unit 500 may be formed.

In addition, the first assembly may further include a coupling protrusion 250 through which an assembly of the lower case 230 and the bottom case 240 (hereinafter, referred to as “second assembly”) may be fastened and fixed. Specifically, the first assembly may include a coupling protrusion 250 to which the protrusion seating groove 251 formed by the second assembly can be coupled.

Meanwhile, the decor button 300 may be an LED button or may include a button cap having a light transmission, that is, a transparent or translucent color, and may be exposed to the outside through the decor hole 211 formed in the first assembly as well as transparent. Light can be emitted through the deco hole 211 of.

In the inner space of the second assembly, a laser module 420 and a plug 520 coupled to the socket 510 of the terminal unit 500 may be provided.

In addition, the second assembly includes a protrusion seating groove 251, and when the first assembly and the second assembly are coupled, the coupling protrusion 250 and the protrusion seating groove 251 may be fastened and fixed.

Meanwhile, as the first assembly and the second assembly are coupled, the socket 510 and the plug 520 of the terminal unit 500 are fastened, and accordingly, power of the battery 430 may be applied to the laser module 420. .

In addition, as the first assembly and the second assembly are separated, the socket 510 is exposed to the outside, and the battery 430 may be charged with power through the socket 510 exposed to the outside.

The circuit unit 400 may receive a pressure signal sensed by each of the head pressure sensors 131, generate a user manipulation signal based on the received pressure signal, and transmit it to an external device (not shown). Specifically, after receiving the pressure signal sensed by each of the head pressure sensors 131, the circuit unit 400 determines in which direction the user manipulated the direction button 110, and then generates a user manipulation signal based on this, The generated user manipulation signal may be transmitted to an external device (not shown).

In addition, the circuit unit 400 can supply power to the laser module 420 as the socket 510 and the plug 520 are coupled through the coupling between the first assembly and the second assembly, as well as the first assembly and the second assembly. Power supplied from the socket 510 exposed according to the separation between the assemblies may be charged in the rechargeable battery 430.

To this end, the circuit unit 400 according to the embodiment of the present invention includes a connection terminal connected to the flexible substrate 130, a control circuit for generating a user manipulation signal by analyzing the input pressure signal, and wirelessly externally to the user manipulation signal. A communication circuit for transmitting the device, a power supply circuit for supplying power, and a charging circuit for charging power may be provided.

The foregoing description of the present application is for illustrative purposes only, and those of ordinary skill in the art to which the present application pertains will be able to understand that it is possible to easily transform it into other specific forms without changing the technical spirit or essential features of the present application. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present application. .

100: user input method
200: body case
300: Deco button
400: circuit part
500: terminal part

Claims (6)

A direction button having a central portion coupled to one side of the direction shaft to enable movement in all directions with the direction shaft as a central axis,
A button disk having a plurality of pressing protrusions in an area adjacent to the button hemisphere and the central portion of the lower surface to which the other side of the directional shaft is coupled to the upper surface;
A circuit unit having a plurality of head pressure sensors in an area corresponding to the area in which the plurality of pressure protrusions are formed, and having a center hole at a position corresponding to the center of the lower surface, and receiving pressure signals sensed by the plurality of head pressure sensors A flexible substrate to be transferred to,
A support plate on which a hollow spherical portion having a seating hole is formed at a position corresponding to the center hole,
A user input device including an elastic member coupled to the directional shaft and coupled to the seating hole through the center hole to restore the directional button to return to the center axis after being moved in an arbitrary direction,
The user input unit,
It is coupled to a trench having a hole in the center of the first assembly in which the upper front case and the upper rear case are combined, and the direction button is positioned at a position spaced apart from the trench by a predetermined distance, and the direction shaft is in the central hole of the trench. In addition to being inserted, the button hemisphere is supported by a guide formed on the upper front case and the upper rear case,
The end portions of the guides formed on the upper front case and the upper rear case have a shape of a sector arc corresponding to the hemispherical shape of the button hemisphere,
In the inner space of the first assembly, a main board, a battery, and a socket on which the deco button is mounted are formed,
The first assembly,
A second assembly, which is an assembly of a lower case and a bottom case, is fastened and fixed, and includes a laser module provided in an inner space of the second assembly and a plug coupled to the socket of the terminal unit,
A pressure-based user input device in which power of the battery is applied to a laser module by fastening a socket and a plug of the terminal portion as the first assembly and the second assembly are fastened and fixed.
The method of claim 1,
The plurality of pressing projections,
It is formed in the vertical, left and right directions based on the center of the lower surface,
The plurality of head pressure sensors,
A pressure-based user input device formed in the vertical, left, and right directions of the flexible substrate so as to correspond to positions in which the plurality of pressing protrusions are formed.
The method of claim 1,
The head pressure sensor,
It has a donut shape formed in a region spaced apart from the center hole by a predetermined amount,
The flexible substrate,
A pressure-based user input device that transmits information on a position of a head pressure sensor pressed by a pressing protrusion to the circuit unit according to an operation of the direction button.
The method of claim 1,
The head pressure sensor,
It is a material having a piezoelectric effect in which resistance is changed by deformation as pressure is applied by the pressing protrusion,
The flexible substrate,
A pressure-based user input device for applying a current to the material and applying a voltage changed according to a change in resistance of the material as the pressure signal to the circuit.
The method of claim 4,
The head pressure sensor,
Input-based user input device consisting of a pressure sensor block with a diameter of 1.5-2.5mm and a thickness of 0.2mm-0.4mm, a pressure range of 50gf∼2kgf, and detectable over 512 levels.
The 3D wireless presenter to which the pressure-based user input device of any one of claims 1 to 5 is combined.

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