KR960002028B1 - Magnetic input device and user interface method - Google Patents

Abstract

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Description

Magnetic input device and user interface method

(A)-(b) of FIG. 1 is a plan view and a side view of the position change part 10 which is a part of the magnetic input device according to the embodiment of the present invention,

2 is a circuit diagram of a magnetic input device according to an embodiment of the present invention.

3 is an operation flowchart of a user interbase method for a magnetic input device according to an embodiment of the present invention.

4 is an operation principle diagram of the spherical body 11 and the magnet 14 according to the embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: position shift portion 11: spherical body

13: magnet body 60: control unit

20, 30: X-axis and Y-axis position detection unit 40: Analogue / digital conversion unit.

The present invention relates to a magnetic input device and a user interface method, and more specifically, by inputting the position information by the magnetic method, it is possible to input the position information at a long distance without requiring a separate work table. The present invention relates to a magnetic input device and a user interbase method for driving the input device.

Mouse and track ball digitizers are used in the location information input device that allows the user to move the pointer on the screen freely in the X and Y directions by inputting the location information to the computer. Digitizer, etc.

The mouse is an optical type that inputs positional information to a computer by optical information by moving a mouse equipped with a light emitting and receiving element on a reflecting plate, and pulses to an encoder plate or the like by a ball rotated in accordance with the movement of the mouse. There is a mechanical type for calculating and inputting location information to a computer.

In addition, the special ball is generally fixed on the keyboard of the computer, or consists of a structure to be used on the user's hand.

However, the mouse and the digitizer require a workbench having a flat structure such as a reflector or a tablet to input location information, and thus, there is a disadvantage in that a space of a certain area must always be secured in order to use it.

Accordingly, an object of the present invention is to provide an input device of a new method than the conventional method described above, so that the user inputs the position information by an angle made by turning the wrist part after holding it in the hand or without requiring a separate work table. In addition, the present invention provides an input device and a user interbase method that can be operated with one finger while being held in a hand.

In order to achieve the above object, the configuration of the present invention detects a magnetic field formed by the magnet body 13 in the position change unit 10 as the position change unit 10 is rotated in the X and Y axis directions by the user. Hall elements 21 and 31 (hereinafter abbreviated as Hall elements as Linear Output Hall Effect Sensors) and the magnet body 13 of the position change unit 10 are physically connected to the outside of the position change unit 10. X- and Y-axis displacement detectors 20 and 30 for converting and outputting a voltage signal corresponding to the strength of the magnetic field according to the distance when rotating the position changer 10 with respect to the magnetic field generated from An analog / digital converter 40 for converting the analog output signals of the Y-axis displacement detectors 20 and 30 into digital signals, and information about the user's selection and cancellation of the current position and information about a data transmission mode. Key input unit 50 which can input, and analog / digital side By using the signals input from the affected part 40 and the key input part 50, the present coordinate value is increased or decreased in the direction where the position is changed when there is a position change, and the current coordinate value when there is no position change. The control unit 60 converts the transmission data into the optical data format or the serial data format according to the transmission mode set by the user, and transmits the coordinates and kit values input from the user interbase software and the control unit 60. , A memory 70 storing variable values and intermediate values, a serial data transmission unit 80 for transmitting a serial data format signal output from the controller 60 in the serial transmission mode, and a remote transmission mode. And an optical data transmission unit 90 for transmitting the optical data format signal outputted from the control unit 60.

In order to achieve the above object, another configuration of the present invention includes the steps of reading new X and Y axis coordinate values (NEW (x), NEW (y)) after initializing all variables in the memory when the operation starts. Determining whether there is a key input and reading the kit value when the key is input and storing it in the memory 70, and the new coordinate values (NEW (x), NEW (y)) and the current coordinate values ( Calculating the displacements (XDIS, YDIS) of the X and Y axes from OLD (x) and OLD (y), respectively, and determining whether there has been a change in position from the calculated displacement, To maintain the coordinate value of, and to increase or decrease the current coordinate value (OLD (x, y)) in the direction of the changed position when there is a change in position, and to determine whether it is in the remote transmission mode from the read key value. In case of remote transmission mode, information signal is transmitted in optical data format. If it is not the mode, a step of transmitting information signals in serial data format.

With reference to the accompanying drawings, a preferred embodiment that can easily implement this invention by the above-described configuration will be described in detail.

1 is a plan view and a side view of a magnetic input device according to an embodiment of the present invention, and FIG. 2 is a circuit diagram of a magnetic input device according to an embodiment of the present invention, and FIG. 4 is an embodiment of the present invention. The operation principle of the spherical body 11 and the magnet 14 according to the present invention. As shown in FIG. 1 and FIG. 2, the configuration of the magnetic input device according to the embodiment of the present invention includes a position change unit 10 attached to a device that can be rotated by a user, and a position change unit. An analog / digital converter 40 having an input at the output of the X and Y axis displacement detectors 20 and 30 and the X and Y axis displacement detectors 20 and 30 that are physically connected to the outside of the 10. ), A controller 60 having an input terminal connected to the key input unit 50 operated by the user, an output terminal of the analog / digital converter 40 and the key input unit 50, and the controller 60 The memory 70 is connected, and the serial data transmitter 80 and the optical data transmitter 90 are connected to an output terminal of the controller 60.

The configuration of the position shift unit 10, the spherical body 11 is coupled and sealed in a hemispherical shape of the same shape, and the magnet 14 is attached to the inside, the magnet is coupled so that the N pole is facing upward and contains air A sieve 13 and a liquid and non-corrosive liquid 12 are enclosed in the above-described spherical body 11, and the level line of the liquid 12 enclosed in the inner circumference and the upper surface of the magnet body 13 are sealed. The buoyancy of the magnet body 13 is adjusted to assemble so as to move together with the level line.

In this state, the lines of magnetic force diverging from the magnet 14 of the magnet body 13 are directed from top to bottom to generate output voltages to the peripheral Hall elements 21 and 31 and the like. At this time, the magnet 14 is inside the spherical body 11 but is physically separated by the liquid 12 so that the magnet 14 always faces the vertical center line regardless of the X and Y axis rotational movements of the spherical body 11. So that the magnetic lines of force are directed from top to bottom.

The X- and Y-axis displacement detectors 20, 30 attached in the X, Y-axis directions at appropriate places outside the spherical body 11 are made by the rotation of the spherical body 11 from the center point of the magnetic force line emitted by the magnet 14 It is a structure that increases or decreases the output voltage according to the distance from the magnet 14 according to the displacement angle.

That is, the distance between the magnet body 13 and the X-axis and Y-axis displacement detectors 20 and 30 is reduced by the rotation of the spherical body 11. At this time, the displacement detectors 20 and 30 output a voltage proportional to the distance.

The output voltage signal of the Hall elements 21 and 31 is viewed from the side when the magnetic force line emitted from the magnet 14 diverges from the top to the bottom when referring to FIG. 4. It can be guessed that the weakening occurs from the scattered far away, and the Hall elements (21, 31) so that the voltage is induced in the direction of the circle formed by the lines of magnetic force around the Hall elements (21, 31) at a distance from the magnet 14 A constant corresponding voltage follows.

Therefore, as the spherical body 11 rotates, the hall elements 21 and 31 and the magnet body 13 increase or decrease the distance, and increase or decrease the voltage.

That is, as shown in Fig. 4, the voltage changes depending on the positions of the Hall elements 21 and 31, such as Vc > Vb > Va.

In addition, the configuration of the X-axis and Y-axis displacement detectors 20 and 30 described above includes Hall elements 21 and 31 and Hall elements 21 and 31 mounted outside the spherical body 11 of the position change unit 10. Resistors R21, R23, R31, and R33 each having one terminal connected to an output terminal thereof, and an operational amplifier OP21, each having an input terminal connected to the other terminal of the resistors R21, R23, R31, and R33. OP31), resistors R22 and R32 connected between the non-inverting input terminals of the operational amplifiers OP21 and OP31 and ground, and inverted input terminals and the output terminals of the operational amplifiers OP21 and OP31. It consists of resistors R24 and R34.

The key input unit 50 includes a selection key SW91, a cancel key SW92, and a transfer mode setting key SW93 connected to the input terminal of the control unit 60, respectively. The key input unit 50 may be mounted directly on the outside of the position change unit 10, and may be mounted on the outside of the case that may be installed for protecting or changing the position change unit 10 so that the user may easily use the key input unit 50. Is done.

3 is a flowchart illustrating an operation of a user interbase method for a magnetic input device according to an embodiment of the present invention.

As shown in FIG. 3, the configuration of a user interbase method for a magnetic input device according to an embodiment of the present invention includes a start step 100, a step of initializing all variables in a memory 110, a new X, A step 120 of reading the Y-axis coordinate values (NEW (x), NEW (y)), a step 130 of determining whether there is a key input, and a reading of the key value if there is a key input Saving in the memory 140, the displacement of the X-axis and Y-axis (XDIS) from the new coordinate values (NEW (x), NEW (y)) and the current coordinate values (OLD (x), OLD (y)), respectively Calculating YDIS), determining whether there has been a change in position from the calculated displacement, and continuing to maintain the current coordinate value if there is no change in position. And increasing or decreasing the current coordinate value OLD (x, y) in the direction of the changed position when there is a change in position, and the read key value. Determining whether it is in the remote transmission mode (190), transmitting the information signal in the serial data format when not in the remote transmission mode (200), and transmitting the information signal in the optical data format in the remote transmission mode. Step 210 is made.

The operation of the magnetic input device and the user interface method according to the embodiment of the present invention by the above configuration is as follows.

When power is applied, the controller 60 executes a user interbase routine that is programmed and stored in the memory 70 to operate the magnetic input device according to the embodiment of the present invention.

When the magnetic input device is operated, the controller 60 initializes all the variables in the memory 70 and at the same time, a new coordinate value (NEW) regarding the X and Y position information input through the analog / digital converter 40. read (x, y))

The user changes the position of the magnet body 13 with respect to the moving elements 21 and 31 so that the position change unit 10 is tilted to and fro so that there is a change in distance from the X and Y axis detection units 20 and 30. Allow location information to be generated.

The flow elements 21 and 31 have a Hall effect in which electromotive force is generated in a direction perpendicular to the direction of the current and the direction of the magnetic field when a magnetic field is applied at right angles to the direction of the current while flowing a current through the metal or semiconductor. It is a device using the principle. Therefore, when the spherical body 11 of the position change part 10 is rotated by a user, there is little change in the magnet body 13 inside, but the change of the distance in the X-axis direction of the magnet body 13 is carried out in the hall element 21. At the same time, a change in the distance in the Y-axis direction of the magnet body 13 is sensed by the Hall element 31 and output as a voltage signal, and the voltage corresponding to the strength of the magnetic line is linearly changed.

At this time, when the voltage signal of the Hall element 21 in the X-axis direction is output is -15 degrees when the user designates an angle of ± 15 within which the spherical body 11 can be easily rotated, the Hall element 21 is a magnet body ( On the contrary, when +15 degrees are closest, the output voltage is "0", that is, +15 degrees when the spherical body 11 is moved above the vertical center line, indicating an increase and moving by -15 degrees. It has a characteristic that indicates a decrease. Similarly, the Hall element 31 in the Y-axis direction has the same characteristics, and the output voltage signals of the Hall elements 21 and 31 in the X-axis and Y-axis directions are vertical, vertical, and horizontal in the XY plane. Each time you move, the relative distance is increased or decreased.

Therefore, the output signal for the dynamic displacement angle of the spherical body 11 is generated by using the difference between the increase and decrease of the output voltage of the X and Y axes that appear when the user moves the spherical body 11. At this time, the output signal is corrected in the program appropriately because the magnetic force lines produced by the magnet body 13 appear in inverse proportion to the square of the distance.

The information signal regarding the distance change between the magnet body 13 and the hall elements 21 and 31 generated in the form of a voltage signal from the hall elements 21 and 31 is calculated by the X and Y axis displacement detectors 20 and 30. The amplifiers are amplified by the amplifiers OP21 and OP31 and then output to the analog / digital converter 40.

The analog / digital converter 40 converts an analog voltage signal input from the X-axis and Y-axis displacement detectors 20 and 30 into a digital signal and outputs the digital signal to the controller 60.

The control unit 60 that reads new coordinate values (NEW (x, y)) relating to the X and Y position information input through the analog / digital conversion unit 40, determines the key value input from the key input unit 50. The new coordinate values NEW (x, y) regarding the X and Y positional information are read and stored together in the memory 70.

Next, the control unit 60 displaces XDIS and Y-axis displacements XDIS from the new coordinate values (NEW (x), NEW (y)) and the current coordinate values OLD (x) and OLD (y), respectively. , YDIS) is calculated and stored in the memory 70. In this case, the software formula for calculating the displacements of the X and Y axes (XDIS, YDIS) is as follows.

XDIS ← NEW (x) -OLD (x)

YDIS ← NEW (y) -OLD (y)

The control part 60 determines whether the position change of the position change part 10 has changed from the computed displacement XDIS, YDIS of the X-axis and Y-axis. That is, when the X-axis and Y-axis displacements (XDIS, YDIS) both have a value of 0, it is determined that there is no change of position of the position change unit 10, and in all other cases, the position change of the change unit 10 is changed. I think there is.

In the case where there is no change of the position of the position change unit 10, the control unit 60 does not update the current coordinate value OLD (x, y) without changing it.

However, when there is a change in the position of the position change unit 10, the control unit 60 increases the current coordinate value OLD (x, y) in the direction of the new coordinate value NEW (x, y) or Update by decreasing.

Next, the controller 60 determines the value of the transmission mode setting key SW93 from the key values stored in the memory 70 to determine whether the current data transmission mode is the remote transmission mode or the serial transmission mode. The remote transmission mode is a method of transmitting data by a wireless remote control method by converting the data into an optical data format, the serial transmission mode is a data via a serial port through a serial port by converting the data into a serial data format such as RS232 It is a way to transmit.

The user can switch the data transfer mode of the input device by changing the value of the transfer mode setting key SW93 of the key input unit 50 before the input device is used or while the input device is in use.

When the transmission mode setting key SW93 of the key input unit 50 is set to the remote transmission mode, the control unit 60 controls the current coordinate value OLD (x, y), the selection key SW91, and the cancel key. The value of SW92 is converted into an optical data format and then transmitted through the optical data transmission unit 90.

However, when the transmission mode setting key SW93 of the key input unit 50 is set to the serial transmission mode, the control unit 60 controls the current coordinate value OLD (x, y) and the selection key SW91 and cancel. The value of the key SW92 is converted into a serial data format and then transmitted through the serial data transmission unit 80.

The internal control side of the computer (not shown) receives data transmitted through the magnetic input device according to the embodiment of the present invention and accordingly moves the pointer on the screen in a predetermined direction so that the pointer on the screen is positioned. The magnet body 13 of the fluctuation part 10 can be moved in linkage with the same direction as the movement direction of the position fluctuation part 10.

In addition, the magnetic input device according to the embodiment of the present invention can be used not only for a computer but also for remote control of home appliances such as a television operating in an on-screen pointer menu method. In this case, the user can replace the general remote control by selecting the menu displayed on the screen of the television on the screen by moving the pointer using the magnetic input device according to the embodiment of the present invention.

After the transmission of the data, the controller 60 reads the new coordinate value NEW (x, y) input from the analog / digital converter 40 and repeats the above-described process so that the pointer is continuously on the screen. So that it can be moved smoothly.

As described above, in order to realize the function, the position change unit 10 of FIG. 1 and the circuit diagram of FIG. 2 are combined and mounted inside the input device designed by the user's request. By rotating the input device in the X-axis and Y-axis directions, the effect of directly moving the position change unit 10 in the device can be seen.

That is, the position shifter 10 and all the other components are contained in the inside of the device, and the key input unit 50 and the data transmission unit 80 and 90 are located at the end of the device.

As described above, in the embodiment of the present invention, by inputting the position information by the magnetic method, a magnetic input device having an effect of inputting the position information without requiring a separate work space and at a long distance; A user interface method can be provided. This effect of the invention can be used in the field of computer input devices and remote controls.

Claims (4)

The position shifting section 10 and the position shifting section 10 physically configured to generate a change in distance between the magnet body 13 and the hall elements 21 and 31 in the X and Y-axis directions by the user. X-axis and Y-axis displacement detectors 20 and 30 that are fixedly connected and detect a change in distance to the magnetic field generated from the magnet body 13 of the position change unit 10 and convert it into an analog voltage signal for output. And an analog / digital converter 40 for converting and outputting the analog output signals of the X and Y axis displacement detectors 20 and 30 into digital signals, and selecting and canceling positions in the user X and Y axis directions. The position input is changed using a key input unit 50 capable of inputting information relating to the information and a transmission mode of the data, and signals input from the analog / digital converter 40 and the key input unit 50. Increase the current coordinates in the direction A control unit 60 for converting and transmitting the transmission data into an optical data format or a serial data format according to the transmission mode set by the user, while maintaining the current coordinate value if there is no change in position, and user interbase software. And a memory 70 storing coordinate values, key values, variable values, and intermediate values input from the controller, and serial data transmission for transmitting serial data format signals output from the controller 60 in the serial transmission mode. And an optical data transmission unit (90) for transmitting the optical data format signal output from the control unit (60) in the remote transmission mode. The material according to claim 1, wherein the position change part (10) is a sealed spherical body (11), a flowable liquid (12) enclosed in the spherical body (11), and a material floating on the liquid (12). The magnetic input is characterized in that it is enclosed in the interior of the spherical body 11 together with the liquid 12 so that the magnetic body 13 is always positioned perpendicular to the gravity according to the rotation of the spherical body 11. Device. When operation starts, initialize all variables in memory, read new X, Y axis coordinate values (NEW (x), NEW (y)), and judge whether there is key input, In the case of reading the key value and storing it in the memory, and from the new coordinate values (NEW (x), NEW (y)) and the current coordinate values (OLD (x), OLD (y)), Calculating the displacements (XDIS, YDIS) to determine whether there has been a change in position from the calculated displacement; and if there is no change in position, keep the current coordinate values and, if there is a change in position, Increasing or decreasing the coordinate value OLD (x, y) by one step in the direction of the changed position, and determining whether it is in the remote transmission mode from the read key value. Burned out, and information in serial data format when not in remote transfer mode A user interbase method for a magnetic input device, characterized in that the step of transmitting a signal. The magnetic input device of claim 1, further comprising an optical data transmitter (90) for transmitting an optical data format signal output from the controller (60) in the remote transmission mode. Magnetic input device.