KR20070028854A - Recognizing device of slide type terminal - Google Patents

Abstract

A slide up/down recognition device of a slide-type terminal is provided to recognize up/down states of a slide unit by sensing a voltage level in accordance with a sliding contact position through a CPU(Central Processing Unit) without equipping a separate sensor, thereby reducing a cost and area consumption as well as a wrong operation. A resistance unit(400) is disposed on a slide unit(200) movable by sliding on a terminal body(300). A contact unit(500) is contacted with the resistance unit(400) by being disposed on the terminal body(300), and outputs a voltage level signal in accordance with a contact position by up/down actions of the slide unit(200) once a certain voltage is supplied to the resistance unit(400). A CPU recognizes up/down states of the slide unit(200) by the voltage level signal.

Description

Slide up-down recognition device of slide type terminal {RECOGNIZING DEVICE OF SLIDE TYPE TERMINAL}

1 and 2 are a perspective view of a conventional slide type mobile communication terminal.

3 and 4 are perspective views of a slide type mobile communication terminal according to an embodiment of the present invention.

5 is a detailed configuration diagram of a slide up-down recognition device of a slide-type terminal according to an embodiment of the present invention.

FIG. 6A is a diagram illustrating a first embodiment of the resistor unit of FIG. 5; FIG.

FIG. 6B is a graph illustrating a change in voltage level depending on a contact position of the resistor of FIG. 6A; FIG.

FIG. 7A illustrates a second embodiment of the resistor unit of FIG. 5; FIG.

7B and 7C are graphs illustrating changes in voltage levels depending on contact positions of the resistance unit of FIG. 7A.

8A is a view showing a third embodiment of the resistor of FIG. 5;

FIG. 8B is a graph showing a change in voltage level depending on the contact position of the resistor of FIG. 8A. FIG.

*** Explanation of symbols for the main parts of the drawing ***

10, 100: mobile communication terminal 20, 200: slide unit

30, 300: main body 40: magnet

50: sensor 400: resistance

500: contact 600: analog to digital converter

700: central computing processor 800: power supply

410: lead wire

The present invention relates to a slide up-down recognition device of a slide-type terminal, and more particularly, by detecting the voltage level of the sliding position through the central processing unit to recognize the slide up-down state without a separate sensor, It is a technology that can be applied to various applications by reducing the area consumption and subdividing the slide up and down steps.

Generally, a mobile terminal (hereinafter referred to as a 'terminal') refers to a mobile phone, a palm PC, a personal digital assistant (PDA), or a handheld PC (HPC). It is a high-tech communication device that can perform various tasks through wireless connection as well as network connection without receiving.

These mobile communication terminals are becoming lighter and smaller due to the development of technology, and their functions are diversified. As the use of mobile communication terminals is becoming more common, terminal products of various functions and designs to meet the needs of various users are available. It's coming out.

That is, the mobile communication terminal has been developed from a bar type terminal in the early days to a flip type terminal, a folder type terminal, a slide type terminal, and the like. In particular, the slide-type mobile communication terminal is a terminal in which a cover coupled to the terminal body is pushed up in a slide manner to check a liquid crystal display screen or operate a keypad.

1 and 2 are perspective views of a conventional slide type mobile communication terminal 10.

1 discloses an embodiment in which the slide unit 20 according to the prior art is down, and FIG. 2 discloses an embodiment in which the slide unit 20 according to the prior art is up.

The slide-type mobile communication terminal 10 according to the related art has a main body 30 with a main system (not shown), a liquid crystal screen (not shown) or a keypad (not shown) installed in the main body 30. The slide unit 20 is coupled to move the slide.

At this time, the slide unit 20 is provided with a magnet 40, the main body 30 is provided with a sensor 50, the distance between the magnet 40 and the sensor 50 when the slide unit 20 is up and down The updown is recognized as the intensity of the magnetic field changes. Here, the slide unit 20 is connected to the main system (not shown) of the main body 30 by FPCB (flexible printed circuit board) is a signal transmission between each other.

In addition, the sensor 50 is implemented as a Hall sensor or MR sensor, and when the distance to the magnet 40 is less than the recognition limit point outputs a high level signal to recognize the down state, the slide unit 20 When the distance up and the distance to the magnet 40 is above the recognition limit point, the low level signal is output and recognized as the up state.

 However, the conventional slide-type mobile communication terminal as described above often causes malfunction due to variations in magnetic field strength of the magnets and defective parts, and requires a separate sensor and magnet. have.

In addition, by simply recognizing the up / down state by only the recognition time limit of the magnet 40 and the sensor 50, it operates only at a fixed recognition time limit, so that the user can not recognize the up / down state at a desired time point. There was a limit to the application.

An object of the present invention for solving the above problems, without having a separate sensor by detecting the voltage level according to the sliding contact position through the central processing unit to recognize the up-down state of the slide, cost and area consumption To reduce and reduce malfunctions.

In addition, the up state recognition criteria and down state recognition criteria to be set by the user as desired and to provide a variety of applications to provide a user-friendly use environment.

The slide-down recognition device of a slide-type terminal according to the present invention for achieving the above object is a resistance portion provided in the slide portion for sliding and moving the terminal body, the terminal body is provided in contact with the resistance portion, And a contact unit for outputting a voltage level signal according to a contact position caused by the up-down of the slide unit when a predetermined voltage is supplied to the resistor unit, and a central operation processor configured to recognize an up-down state of the slide unit according to the voltage level signal. do.

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

3 and 4 are perspective views of a slide type mobile communication terminal according to an embodiment of the present invention.

3 and 4, the slide-type mobile communication terminal 100 according to an embodiment of the present invention is a main body 300 having a central processing unit (not shown) and a liquid crystal display (not shown) or keypad It is formed of a slide portion 200 which is coupled to the slide movement to the main body 30 in the state (not shown) installed.

At this time, the resistance part 400 is formed in the slide part 200 of the part which contacts the main body 300, and the contact part 500 is formed in the main body 300, and the contact part 500 up-downs the slide part 200. The voltage level signal is output to the central processing unit (not shown) in the main body 300 according to the contact position of the resistance unit 400 and the contact unit 500 according to the state, and the slide unit 200 is up and down in accordance with the voltage level signal. Be aware of the state.

Here, the resistor unit 400 is formed of a single straight conductor having a single resistance value, and applied according to the position where the contact unit 500 contacts the resistor unit 400 when a power source is applied to the resistor unit 400. The resistance value is different. In addition, the resistor 400 may be formed by connecting a plurality of conductors having different resistances with different resistance values in series or in parallel in a dotted line shape using a conductive wire, and a specific embodiment of the resistor 400 will be described later. This will be described with reference to FIGS. 6A to 8B.

On the other hand, the contact portion 500 is preferably formed to contact the resistor 400 in the form of a roller, ball point or the like.

5 is a detailed configuration diagram of a slide up-down recognition device of a slide-type terminal according to an embodiment of the present invention.

As shown in FIG. 5, the slide up-down recognizing apparatus includes a resistor 400, a contact 500, an analog-to-digital converter 600, a central processing unit 700, and a power supply for supplying power to the resistor 400. 800.

The resistor unit 400 includes a conductor having a predetermined resistance value, and the contact unit 500 is formed to be in contact with the resistor unit 400 so that the voltage level signal is changed according to the change in the resistance value according to the contact position with the resistor unit 400. Outputs The analog-to-digital converter 600 converts the analog voltage level signal output from the contact unit 500 into a digital signal, and the central processing unit 700 uses the signal output from the analog-to-digital converter 600 to the slide unit 200. Determine if is up or down.

In this case, when the analog-to-digital converter 600 is implemented with 8 bits, the voltage level stage may be distinguished from 256 stages, and thus, the stage according to the sliding position of the slide unit 200 may be classified up to 256 stages.

FIG. 6A is a diagram illustrating a first embodiment of the resistor unit 400 of FIG. 5.

The resistor unit 400 of FIG. 5 is formed of a single straight conductor. In the straight conductor, the resistance length is changed according to the contact positions A, B, C, and D with which the contact portion 500 is in contact, and thus the resistance value is changed. For example, the central processing unit 700 recognizes the slide unit 200 as a down state when the voltage level signal corresponding to the resistance value when the contact unit 500 is in contact with B is input, and the contact unit 500 is C. When the level signal corresponding to the resistance value when the contact is input to the slide unit 200 is set to recognize the up state, when the contact unit 500 contacts A and B, the slide unit 200 is brought down. When the contact unit 500 contacts the C and D, the slide unit 200 is recognized as the up state.

As shown in FIG. 6B, the resistance unit 400 formed of one conductor of FIG. 6A may have a resistance value that is inversely proportional to the contact distance due to a change in resistance value according to the contact position thereof.

FIG. 7A is a diagram illustrating a second embodiment of the resistor unit 400 of FIG. 5.

7A illustrates a resistor 400 in series connected with a dotted line. The series connection dotted line resistor unit 400 is configured by connecting a plurality of conductors E to H having different resistances from each other in series using the conductive wire 410. As described above, the resistance unit 400 of the second embodiment clarifies the change in the resistance value for each step of contacting the contact unit 500 by setting the resistance values of the plurality of conductors differently so that the central processing unit 700 can slide the slide unit ( The up-down state of 200 is more clearly seen.

As shown in FIGS. 7B and 7C, the resistance value of the dotted line resistor 400 of FIG. 7A varies depending on the contact position, such that the contact voltage level is inversely proportional to the contact distance.

FIG. 8A is a diagram illustrating a third embodiment of the resistor unit 400 of FIG. 5.

The resistor unit 400 of FIG. 8A is a parallel connection dotted resistor unit in which a plurality of conductors having different resistance values are connected in parallel, and may be applied to a terminal sliding left and right. The detailed operation thereof is the same as the resistor unit 400 of FIG. 7A and will be omitted. 8A is a graph illustrating a change in voltage level according to a contact position of the resistor 400 of FIG. 8A.

As such, when the power is supplied to the resistor unit 400, the present invention recognizes a change in the voltage level according to the change in the resistance value according to the contact position of the resistor unit 400 and determines the up / down of the slide unit 200.

In addition, by setting a plurality of steps of the resistance value of the resistor unit 400, the up-down state of the slide unit 200 may be divided into a plurality of steps to apply an application to each step. For example, if the slide part is up by one level, the backlight is turned on, if it is up by two levels, the key lock is released, or in step 3, the user enters the user-defined mode, and in step 4, the text message transmission mode is entered. Etc. can be applied.

3 to 8A of the present invention disclose an example in which the present invention is applied to a slide type mobile communication terminal, the slide up-down recognizing apparatus of the present invention can be applied to all terminals in a slide type.

As described above, the present invention has the effect of reducing the cost and area consumption and reducing malfunction by allowing the central operation processing unit to recognize the up-down state according to the resistance value without providing a separate sensor.

In addition, the user can set the slide up state recognition criteria and the down state recognition criteria of the terminal as desired by the user to provide a user-friendly environment, it is possible to apply a variety of applications in a plurality of up-down steps.

In addition, a preferred embodiment of the present invention is for the purpose of illustration, those skilled in the art will be able to various modifications, changes, replacements and additions through the spirit and scope of the appended claims, such modifications and changes are the following claims It should be seen as belonging to a range.

Claims (6)

A resistance unit provided in a slide unit which slides and moves the terminal body; A contact part provided in the main body of the terminal and contacting the resistance part and outputting a voltage level signal according to a contact position caused by the up and down of the slide part when a predetermined voltage is supplied to the resistance part; And And a central operation processor configured to recognize an updown state of the slide unit according to the voltage level signal. The method of claim 1, And an analog-to-digital converter for converting the voltage level signal output from the contact unit into a digital signal and transferring the converted voltage level signal to the central processing unit. The slide-up recognition apparatus of claim 1, wherein the resistor unit is formed of a linear resistor unit having a single resistance value. The slide-up recognition apparatus of claim 1, wherein the resistor unit is formed of a series dotted line resistor unit in which a plurality of resistors having different resistance values are connected in series in a dotted line. The apparatus of claim 1, wherein the resistor unit is formed of a parallel dotted line resistor unit in which a plurality of resistors having different resistance values are connected in parallel with each other in a dotted line. The method of claim 1, wherein the central processing unit, The slide-up recognition of the slide-type terminal, characterized in that divided into the up state and the down state of the slide unit in a plurality of stages according to the step of the resistance value according to the contact position of the resistor unit and the contact portion Device.

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