KR101667425B1 - Mobile device and method for zoom in/out of touch window - Google Patents

Mobile device and method for zoom in/out of touch window Download PDF

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Publication number
KR101667425B1
KR101667425B1 KR1020100053561A KR20100053561A KR101667425B1 KR 101667425 B1 KR101667425 B1 KR 101667425B1 KR 1020100053561 A KR1020100053561 A KR 1020100053561A KR 20100053561 A KR20100053561 A KR 20100053561A KR 101667425 B1 KR101667425 B1 KR 101667425B1
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KR
South Korea
Prior art keywords
touch window
mobile device
finger
movement
touch
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KR1020100053561A
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Korean (ko)
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KR20110133904A (en
Inventor
이세현
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엘지이노텍 주식회사
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Priority to KR1020100053561A priority Critical patent/KR101667425B1/en
Priority to TW100119773A priority patent/TWI499947B/en
Priority to PCT/KR2011/004127 priority patent/WO2011155743A2/en
Publication of KR20110133904A publication Critical patent/KR20110133904A/en
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Publication of KR101667425B1 publication Critical patent/KR101667425B1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04108—Touchless 2D- digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface without distance measurement in the Z direction

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • User Interface Of Digital Computer (AREA)
  • Position Input By Displaying (AREA)
  • Studio Devices (AREA)

Abstract

The present invention relates to a mobile device and a touch window enlargement / reduction method having a touch window enlargement / reduction function that can be conveniently operated by recognizing a specific operation by arranging a camera capable of detecting movement of a finger, A mobile device including a touch window on which a pointer moving to a desired position by an input is displayed, the mobile device comprising: a frame formed on a front surface of the mobile device, the frame forming a rim of the touch window; And a pair of cameras formed to be inclined in the touch window direction. Accordingly, a mobile device capable of recognizing the movement of the finger on the upper side of the touch window is provided.

Description

TECHNICAL FIELD [0001] The present invention relates to a mobile device having a touch window enlargement /

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mobile device having a touch window enlargement / reduction function at a designated position in a touch window of a mobile device, and a method of enlarging and reducing a touch window. More specifically, And more particularly, to a mobile device and a touch window enlargement / reduction method having a touch window enlargement / reduction function that can be improved in convenience by recognizing a specific operation.

2. Description of the Related Art In recent years, the spread of mobile devices having a touch window has been expanded in response to demands for miniaturization of a mobile device and emotional implementation of an interface. The touch window is a pointer input device similar to a mouse and moves in conjunction with an image display device such as an LCD.

The touch window is a device capable of directly specifying a position by hand or moving a pointer in contact with a touch window using a dedicated input tool such as a stylus pen and inputting a desired instruction through a specific operation. In the case of a PDA or smartphone with a small screen size, it is possible to input with a finger, but since the range of the contact is widened, a method for improving the accuracy has been recently studied.

1 is a diagram illustrating a touch window according to the related art. A touch window 2, which is a liquid crystal display device for realizing image and touch input, is disposed on the front surface of the mobile device 1. Menus 3 for performing a specific program or command are arranged in the touch window 2 . A pointer 4 is placed on an image to perform a command shown in the touch window 2 and moves according to a user's operation. When a desired menu or position is reached, the user performs an instruction through an operation such as tapping with a finger or the like do.

 In the touch window, there is a high demand for enlargement or reduction compared to a general desktop computer because of the limitation of the size that is realized when checking the web documents of the Internet or checking the contents of word files and the like. Therefore, conventionally, when the user touches the touch window 2 to move the pointer 4 to a desired position while moving the finger, the two fingers are widened at the portion to be enlarged, that is, The contents displayed based on the position were enlarged. Conversely, if you wanted to reduce the size, you could implement the reduction function by moving the gap between the two fingers.

Recently, as the spread of wireless Internet has widened and the use of the Internet has increased in mobile devices, the frequency of use of the magnification and reduction of touch windows has been increasing. However, due to the limitation of the size of the touch window due to the portability of the mobile device in recent years, the above-described enlargement and reduction operations of the touch window are inevitably inevitable, and the above-described repetition of operations inconveniences the user .

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a camera capable of detecting movement of a finger and capable of performing a function of enlarging / And to provide a mobile device and a touch window enlargement / reduction method having an enlargement / reduction function of a touch window which is improved and easy to use.

A mobile device having a touch window enlargement / reduction function according to the present invention is a mobile device including a touch window in which a pointer moving to a desired position is displayed by a touch input, the mobile device being formed on a front surface of the mobile device, And a pair of cameras formed on opposite sides of the frame at opposite ends thereof and inclined in the direction of the touch window. Accordingly, a mobile device capable of recognizing the movement of the finger on the upper side of the touch window is provided.

In addition, the mobile device having the touch window enlargement / reduction function according to the present invention provides a mobile device having a touch window enlargement / reduction function activated when a finger touches the touch window and is separated from the touch window. Therefore, conventionally, a mobile device capable of receiving a command even in a space separated from a touch window by overcoming a limitation of inputting a command only when the touch window is contacted is provided.

According to another aspect of the present invention, there is provided a mobile device having a touch window enlargement / reduction function, wherein the pair of cameras has a touch window enlargement / reduction function in which a screen angle is set so as to recognize movement of a fingertip crossing the upper space of the touch window To a mobile device. Accordingly, it is possible to accurately recognize the command according to the movement of the finger through the pair of cameras.

In addition, the mobile device having the touch window enlargement / reduction function according to the present invention may further include a controller for analyzing an operation through a phase difference of a finger input from the pair of cameras, And a touch window enlargement / reduction function for enlarging or reducing the contents displayed in the touch window around the position where the pointer is displayed when the operation is matched.

According to another aspect of the present invention, there is provided a method of enlarging or reducing a content displayed on a touch window of a mobile device, the method comprising the steps of: recognizing a finger tip touching a touch window, A step of activating a camera on both sides of the touch window when the fingertip is spaced apart from the touch window, analyzing a phase difference of movement of the fingertip through the camera, A step of comparing with a preset movement, and a step of enlarging or reducing the contents displayed on the touch window around the position of the pointer, and displaying the enlarged or reduced touch window. Therefore, the command can be recognized in the upper space of the touch window, thereby improving the accuracy and convenience.

According to another aspect of the present invention, there is provided a method for enlarging and reducing a touch window, comprising the steps of: comparing a predetermined movement with a preset movement; recognizing the movement as a movement to enlarge when the movement of the fingertip is clockwise; And a touch window enlargement / reduction method in which the touch window is recognized as a movement.

According to another aspect of the present invention, there is provided a method of magnifying and reducing a touch window, the method comprising: analyzing a degree of rotation of a fingertip to analyze a degree of magnification or reduction according to a degree of rotation; Provides a way to zoom in and out of windows.

According to the mobile device and the touch window enlargement / reduction method having the touch window enlargement / reduction function according to the present invention configured as described above, commands can be easily recognized even in a space above the touch window, There is an advantage to be improved.

In addition, since a command can be received even when the finger is spaced apart from the touch window, the position of the pointer can be clarified, and the desired position can be accurately enlarged or reduced to a desired degree.

1 shows a mobile device with a touch window according to the prior art;
2 is a plan view showing a basic structure of a mobile device according to the present invention;
3 is a side view showing an angle of view of a mobile device according to the present invention;
FIG. 4 is a flowchart illustrating a touch screen enlargement / reduction method according to the present invention.

Hereinafter, a mobile device and a touch screen enlargement / reduction method having a touch screen enlargement / reduction function according to a preferred embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a plan view showing a mobile device having a touch screen enlargement / reduction function according to the present invention, and FIG. 3 is a view illustrating a side and an angle of view of a mobile device having a touch screen enlargement / reduction function.

Like the general image touch-type mobile device, a touch window 20, which is capable of image output and touch input, is disposed on the front face of the mobile device 10. The edge of the touch window 20 corresponds to the touch window 20 A frame 30 having a predetermined width is disposed so that it can be protected and held.

The touch window 20 displays a pointer 50 that serves to guide a user to designate a part where a command is input according to a touch input of a user or to directly tap and input a command. Accordingly, when designating a specific link portion or the like of documents such as a web document, the pointer 50 can be moved to a desired position by touching the pointer 50 with a finger or a touch pen.

For reference, when touching the pointer 50 to move or input a command, a method of recognizing a touch uses a pressure-sensitive type for sensing the pressure and an electrostatic type for measuring the density of the charge.

The frequency of the enlargement / reduction function is increased when confirming a web document or a program according to the limit of the size of the touch window of the mobile device, and the problem of the method of using two fingers in contact is as described above. In order to solve such a problem, according to the concept of the present invention, two cameras are disposed so as to detect movement of a finger in an upper space of the touch window 20.

The first camera 40 and the second camera 41 are disposed on both sides of the frame 30 adjacent to the touch window 20 as shown in FIG. However, since the cameras 40 and 41 can recognize the phase difference of the movement of the fingers in the space, they may be disposed to face each other in the diagonal direction or may be disposed to face each other in the vertical direction, Of course.

The first camera 40 and the second camera 41 are preferably formed to be inclined at a predetermined angle in the direction of the touch window 20. In Fig. 3, the hatched portion represents an image angle that each camera can capture and recognize. It is preferable that the image angles of the respective cameras are crossed so as to cover most of the upper space of the touch window 20 since the movement of the fingertip must be simultaneously recognized in the upper space of the touch window 20. [

Hereinafter, a process of enlarging / reducing the screen displayed on the touch window 20 in the mobile device 10 will be described in detail.

The pointer 50 must be moved in order to designate a specific position of information displayed on the screen. Therefore, the pointer 50 is moved by touching and dragging a finger on the touch window 20. [ In this process, the first camera 40 and the second camera 41 are not activated because it is unnecessary to detect the movement of the finger in the upper space of the touch window 20 unnecessarily.

When the pointer 50 is positioned at a desired position, the fingers are spaced apart from each other by a predetermined distance. As a result, it is possible to recognize that the finger is separated from the touch window 20 because the pressure or the amount of the charge is reduced. Accordingly, in order to receive the command by the movement of the finger in the upper space of the touch window 20, 40 and the second camera 41 are activated.

More precisely, the first camera 40 and the second camera 41 simultaneously recognize the movement of the fingertip and transmit information to a control unit (not shown). At this time, the predetermined operation is implemented with the fingertip, and the controller compares the motion with the motion corresponding to the preset command and sends the corresponding command signal. In this case, it is preferable to use an instruction to enlarge or reduce through a movement of the finger which the user can most easily move.

That is, when the finger is rotated in the clockwise direction in parallel with the touch window 20 from the touch window 20, the first camera 40 and the second camera 41 send a motion signal of the fingertip to the control unit And analyzes the phase difference of the fingertips to send a screen enlargement command to the touch window 20, which is a signal for clockwise rotation. At this time, it is preferable that the screen enlargement is centered on a portion where the pointer 50 is located. When the command is input in the upper space of the touch window 20 after the pointer 50 is positioned as described above, there is an advantage that the enlarged portion is highly accurate compared with the conventional method in which the finger is contacted and the interval is widened .

On the other hand, when the user desires to reduce the size of the screen, the pointer 50 is positioned at a desired position and the finger is rotated counterclockwise in parallel with the touch window 20, When the second camera 41 sends a motion signal of the fingertip to the control unit and sends a screen reduction command, which is a signal for the counterclockwise rotation, to the touch window 20 by analyzing the phase difference of the fingertip, The contents displayed on the touch window 20 are reduced around the portion where the pointer 50 is located.

For reference, in the case of the mobile device according to the present invention, various functions can be utilized as well as enlarging or reducing the screen by setting various operations in the upper space separated from the touch window 20 in advance. Such a concept does not occupy a predetermined area on the touch window 20 with which the finger is in contact, so that it is possible to easily overcome an input error which can not be overcome even by an algorithm that compensates for the accuracy of the distribution of pressure or charge .

4 is a flowchart illustrating a touch window enlargement / reduction method according to the concept of the present invention. The position of the pointer is moved by touching the finger (S100), and it is determined whether or not the finger is separated on the touch window (S200). If the finger is not separated from the touch window 20, the pointer 50 continues to move along the contact portion of the finger, that is, the drag operation continues. When the finger is separated from the finger, 2 camera 41 is activated (S300) and is in the input waiting state.

The first camera 40 and the second camera 41 are arranged to cross the image angle toward the upper space of the touch window 20 and recognize the operation of the fingertip in the upper side of the touch window 20 in operation S400. , It is determined whether the operation analyzed through the phase difference is an operation corresponding to a predetermined command signal.

That is, it is determined whether the command is a magnifying command or a reducing command through the rotation direction as described above. In the case of the clockwise direction, the command is recognized as a command for enlarging the screen (S512) ), As described above, and it goes without saying that this operation can be replaced by various operations depending on the selection.

It is preferable to further perform the step of determining the degree of rotation (S511, S521) before enlarging (S512) or reducing (522) the screen. A magnification for zooming in or out can be set according to the degree of rotation when one rotation, that is, 360 degrees rotation is judged as the maximum magnification. In such a case, the movement of the fingertips will draw the arc shape rather than a complete circle.

However, it is needless to say that the magnification can be set to a larger value according to the number of revolutions by setting one revolution as the minimum magnification.

According to the mobile device having the touch screen enlargement / reduction function according to the present invention and the method of enlarging / reducing the touch screen, the pointer can be arranged at the correct position and various commands can be inputted A mobile device and a touch screen enlargement / reduction method are provided in which accuracy can be remarkably improved and convenience is provided.

In the foregoing, the present invention has been described in detail based on the embodiments and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the content of the following claims.

10 ... mobile device 20 ... touch window
30 ... frame 40 ... first camera
41 ... second camera 50 ... pointer

Claims (7)

A mobile device comprising a touch window for receiving a command via a touch of a finger and for recognizing the contacted finger and positioning the pointer at a specific location,
A frame formed on a front surface of the mobile device, the frame forming a rim of the touch window; And
And a pair of cameras formed on opposite sides of the frame and arranged to be inclined in the direction of the touch window,
Wherein the pair of cameras is activated when a finger touches the touch window and is spaced apart from the touch window and recognizes movement of the finger in the upper space of the touch window and receives a command.
delete The method according to claim 1,
Wherein the pair of cameras has a touch window enlargement / reduction function for recognizing the movement of the fingertip, wherein each image angle intersects the upper space of the touch window.
The method according to claim 1 or 3,
And a controller for analyzing an operation through a phase difference of a fingertip inputted from the pair of cameras,
And a touch window enlargement / reduction function for enlarging or reducing the contents displayed on the touch window around the position where the pointer is displayed when the operation of the fingertip coincides with the previously input operation.
A method for expanding or reducing content displayed on a touch window of a mobile device,
The mobile device recognizing a finger touching the touch window and positioning a pointer at a specific position of the touch window;
Activating a camera on both sides of the touch window when the mobile device is separated from the touch window;
The mobile device analyzing the phase difference of movement of the tip of the finger through the camera;
Comparing the motion of the fingertip with a predetermined motion corresponding to an instruction to zoom in or out; And
And enlarging or reducing the contents displayed on the touch window around the position of the pointer by the mobile device.
6. The method of claim 5,
Wherein the step of comparing the motion with the preset motion recognizes the motion of the fingertip as a movement to be enlarged when the movement of the fingertip is clockwise, and the movement of the finger is recognized as the movement of the finger when the movement is counterclockwise.
The method according to claim 6,
Wherein the step of comparing the motion with the preset motion includes analyzing the degree of rotation of the fingertip and determining the degree of magnification or reduction according to the degree of rotation.
KR1020100053561A 2010-06-07 2010-06-07 Mobile device and method for zoom in/out of touch window KR101667425B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020100053561A KR101667425B1 (en) 2010-06-07 2010-06-07 Mobile device and method for zoom in/out of touch window
TW100119773A TWI499947B (en) 2010-06-07 2011-06-07 Mobile device and method for zooming in/out a touch window
PCT/KR2011/004127 WO2011155743A2 (en) 2010-06-07 2011-06-07 Mobile device and method for zooming in/out a touch window

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100053561A KR101667425B1 (en) 2010-06-07 2010-06-07 Mobile device and method for zoom in/out of touch window

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KR20110133904A KR20110133904A (en) 2011-12-14
KR101667425B1 true KR101667425B1 (en) 2016-10-18

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TWI472471B (en) 2011-06-03 2015-02-11 Academia Sinica Multi-axes actuating apparatus
KR101502085B1 (en) * 2013-10-04 2015-03-12 주식회사 매크론 A gesture recognition input method for glass type display device
CN104375699A (en) * 2014-07-17 2015-02-25 深圳市钛客科技有限公司 Portable sensing device, mobile terminal and control device thereof
CN104375697A (en) * 2014-07-17 2015-02-25 深圳市钛客科技有限公司 Mobile device
CN104375698A (en) * 2014-07-17 2015-02-25 深圳市钛客科技有限公司 Touch control device
KR20160084640A (en) 2015-01-06 2016-07-14 한국전자통신연구원 Apparatus and method of inputting touch using finger recognition

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KR100978929B1 (en) * 2008-06-24 2010-08-30 한국전자통신연구원 Registration method of reference gesture data, operation method of mobile terminal and mobile terminal
KR20100018152A (en) * 2008-08-06 2010-02-17 주식회사 케이티테크 Mobile terminal for controlling camera module by adjusting preview image and method using the same
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WO2011155743A3 (en) 2012-04-26
WO2011155743A2 (en) 2011-12-15
TW201209665A (en) 2012-03-01
KR20110133904A (en) 2011-12-14
TWI499947B (en) 2015-09-11

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