CN101354618A - Method and apparatus for positioning touch screen - Google Patents
Method and apparatus for positioning touch screen Download PDFInfo
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- CN101354618A CN101354618A CNA2007100443014A CN200710044301A CN101354618A CN 101354618 A CN101354618 A CN 101354618A CN A2007100443014 A CNA2007100443014 A CN A2007100443014A CN 200710044301 A CN200710044301 A CN 200710044301A CN 101354618 A CN101354618 A CN 101354618A
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Abstract
The invention discloses a method and a device for positioning touch screens. The method comprises the following steps of acquiring an object region figure corresponding to the present touch point, setting a prompt region according to a preset rule, magnifying the acquired object region figure and displaying the object region figure in the prompt region. As the magnified object region figure improves the operation precision of unit area, misoperation easily caused by sight obstruction when touch screens are operated by use of fingers or other objects in the prior art is avoided.
Description
Technical field
The present invention relates to touch-screen, particularly relate to a kind of touch-screen localization method and device.
Background technology
Along with development of electronic technology and multimedia messages use universal day by day, touch-screen just more and more affects people's life.For example, mobile phone, PDA, and our the multimedia information inquiry terminal that in public places such as airport, hotel, street, is seen everywhere etc.
General, touch-screen is made up of touch detecting apparatus and touch screen controller; Touch detecting apparatus is used to detect user's touch action, send touch screen controller with the touch information that gets access to; Touch screen controller receives touch information from touch detecting apparatus, and converts it to contact coordinate, gives CPU with this contact coordinate then and handles, and in addition, it can also respond and carry out the instruction from CPU.
Touch-screen has sturdy and durable, and reaction velocity is fast, saves the space, is easy to many advantages such as interchange.Utilize this technology, the user only needs to touch screen gently with pointer just can realize human-machine operation.Not only need extra cost but make such pointer, and not portable, lose easily, cause customer using cost to increase.Particularly when using the such handheld device of pointer operation such as mobile phone, PDA, need two hands of user to operate simultaneously, use very inconvenience.
For these reasons, many times, people usually wish to use finger just can finish operation to touch-screen.But because the contact area of people's finger and touch-screen is bigger, and the touch point that touch-screen can respond has only one, therefore, when on touch-screen, operating, because finger has blocked user's sight line, cause the user to be difficult to see on the touch-screen actual contact point, and and then cause maloperation.Therefore, owing to the unsighted maloperation that causes has had a strong impact on the use of touch-screen, brought great inconvenience to the user.
Summary of the invention
One of purpose of the present invention is to disclose a kind of touch-screen localization method, with solve prior art when using touch-screen because dysopia causes and can't accurately locate the touch point, cause the problem of maloperation.
Another object of the present invention is to disclose a kind of touch-screen locating device, with solve prior art when using touch-screen because dysopia causes and can't accurately locate the touch point, cause the problem of maloperation.
For addressing the above problem, the invention discloses a kind of touch-screen localization method, described method comprises:
Obtain the target area figure of current touch point correspondence;
By presetting rule the prompting zone is set;
Amplify the described target area figure that obtains; This target area graphic presentation is regional in described prompting.
Preferably, described at the regional display-object regional graphics of prompting with to obtain corresponding target area, current touch point figure synchronous.
Preferably, described method also comprises: protection prompting zone is on-the-spot; Behind the position change of touch point, recover scene, prompting zone.
Preferably, the described setting by presetting rule points out the zone to comprise: according to the regional starting point coordinate of coordinate Calculation prompting of touch point correspondence; This starting point coordinate is the reference position that shows described target area figure.
Preferably, described regional about screen center's point symmetry with corresponding target area, touch point figure and prompting.
Preferably, described method also comprises: the position that identifies current touch point correspondence in described prompting zone with foresight.
For addressing the above problem, the invention also discloses a kind of touch-screen locating device, described device comprises:
The target area acquiring unit is used to obtain the target area figure of current touch point correspondence;
The prompting zone is provided with the unit, is used for by presetting rule the prompting zone being set;
Amplifying unit is used for the target area figure that amplification target zone acquiring unit is obtained;
Display unit, the target area graphic presentation that is used for amplifying unit is amplified is provided with set prompting zone, unit in the prompting zone.
Preferably, described device also comprises: lock unit is used to control the target area figure that display unit is obtained at described prompting area synchronized display-object zone acquiring unit.
Preferably, described device also comprises: the site disposal unit, and it is on-the-spot to be used for protection prompting zone; And behind the position change of touch point, recover to point out the zone on-the-spot.
Preferably, described prompting zone is provided with the unit and also comprises: the coordinate Calculation unit, be used for the starting point coordinate according to the coordinate Calculation prompting zone of current touch point correspondence, this starting point coordinate is the reference position that described display unit is used to show described target area figure.
Preferably, described device also comprises: the foresight identify unit is used in described prompting zone set prompting zone, unit identifies current touch point correspondence with foresight position being set.
The invention also discloses a kind of mobile phone, comprising: touch-screen and fuselage, described mobile phone also comprises:
The target area acquiring unit is used to obtain the target area figure of current touch point correspondence;
The prompting zone is provided with the unit, is used for by presetting rule the prompting zone being set;
Amplifying unit is used for the target area figure that amplification target zone acquiring unit is obtained;
Display unit, the target area graphic presentation that is used for amplifying unit is amplified is provided with set prompting zone, unit in the prompting zone.
The present invention has following effect as can be known according to one embodiment of present invention:
In the prior art, when the user uses the finger manipulation touch-screen, because people's the finger and the contact area of touch-screen are bigger, and the touch point that touch-screen can respond has only one, therefore, when on touch-screen, operating, because finger has blocked user's sight line, cause the user to be difficult to see on the touch-screen actual contact point, and and then cause maloperation.The present invention obtains the coordinate of current actual touch point by system, and the figure of obtaining this peripheral region, touch point by certain rule is as the target area figure, by pre-defined rule the prompting zone is set on screen then, is presented at this prompting zone after the target area figure that obtains is amplified.So, when the user uses finger or other object operation touch-screen, target area figure after the amplification has improved the precision of the operation of unit area, thus avoided in the prior art owing to unsighted, can't know the maloperation that the position, touch point causes.In addition, by the amplification target regional graphics, under the identical situation of screen area, the present invention can show in screen and more data and content have improved display effect that also more convenient user operates.
Description of drawings
Fig. 1 shows the flow chart of steps of the embodiment 1 of touch-screen localization method of the present invention;
Fig. 2 shows in the embodiment of the invention the effect synoptic diagram of screen by the zoning, diagonal angle;
Fig. 3 shows the flow chart of steps of the embodiment 2 of touch-screen localization method of the present invention;
Fig. 4 shows the flow chart of steps according to an Application Example of touch-screen localization method of the present invention;
Fig. 5 shows the structured flowchart of an embodiment of touch-screen locating device of the present invention.
Embodiment
At present, prior art is when using touch-screen, and owing to blocking of finger, the user often can't be clear that the touch point, therefore, is very easy to cause maloperation.The present invention is by obtaining and corresponding target area, current touch point figure, the prompting zone is set in other position of screen then, and the graphic presentation of described target area is regional in this prompting, utilize foresight in the corresponding position of the current actual touch point of this highlight domain identifier simultaneously.So, avoided, solved the problem that prior art exists well owing to the maloperation that can't see that the touch point causes.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1, Fig. 1 shows the flow chart of steps of the embodiment 1 of touch-screen localization method of the present invention.Below in conjunction with Fig. 1 this embodiment is further described.
Step 101: catch current touch point, obtain contact coordinate.
In order to obtain and corresponding target area, current touch point figure, at first, we need catch current touch point, and obtain the contact coordinate of this touch point correspondence.General, when the user operated touch-screen, touch detecting apparatus will detect user's touch information; Then, touch screen controller receives touch information from touch detecting apparatus, and converts it to contact coordinate.At present, according to the difference of touch detecting apparatus, touch-screen can be divided into resistive touch screen, capacitive touch screen, infrared-type touch-screen and surface acoustic wave touch screen etc. usually.
For ease of understanding, below just be that example illustrates that how the touch-screen of the type catches the touch point, obtains contact coordinate with the resistive touch screen:
Resistive touch screen utilizes pressure sensitive to control.The major part of electric resistance touch screen is a resistance film screen that cooperates very much with display surface, this is a kind of laminated film of multilayer, it with one deck glass or duroplasts flat board as basic unit, the surface scribbles layer of transparent oxidized metal (transparent conductive resistance) conductive layer, is stamped one deck outside surface cure process, smooth anti-friction plastic layer, its inside surface above again and also scribbles one deck coating, has the transparent isolating points of many tiny (less than 1/1000 inches) that two conductive layers is separated insulation between them.When the finger touch screen, two conductive layers has just had contact in the position, touch point, and resistance changes, and produces signal on X and Y both direction, send touch screen controller then.Controller obtains this contact information and calculates (X, position Y).
More than illustrated how to obtain contact coordinate from the angle of touch-screen principle of work, but in the practical application, the user is mostly by graphic user interface (GUI, Graphical User Interfaces) operation touch-screen, therefore, when enforcement is of the present invention, certainly directly obtain contact coordinate, and needn't consider how its bottom is realized by operating system.For example, for the embedded system of widespread usage on mobile device, whether we can judge current by system event type is touch event (mouse event), and the touch point coordinate that from event argument, obtains being correlated with (x, y).
Step 102: obtain and corresponding target area, touch point figure.
Usually, the user operates touch-screen based on graphical interfaces, and graphical interfaces depends on operating system or GUI system mostly.Therefore, preferably, can obtain the figure of touch point coordinates regional by the system diagram shape function that operating system or GUI system provide, i.e. the target area figure.For example, at present at embedded OS MiniGUI, OpenGUI commonly used and MicroWindows etc., these GUI systems all provide the system diagram shape function usually, bitblt function as the MiniGUI system, certainly, those skilled in the art also can obtain the target area figure by other modes, as programming realization voluntarily.When obtaining the target area figure, the size of these regional graphics, shape can set up on their own according to actual needs, as long as comprise described touch point in the figure that obtains.
Step 103: the prompting zone is set by presetting rule.
Step 104: amplification target regional graphics.
Step 105: the target area graphic presentation after will amplifying is in the prompting zone.
The present invention does not limit position, size and the shape in the prompting zone that is provided with in screen, and those skilled in the art can set up on their own when of the present invention as required implementing.Preferably, the shape and the size in prompting zone can be set according to the target area figure after amplifying, certainly, the amplification target regional graphics, according to target the original length and width equal proportion of regional graphics is amplified, and also can set up on their own according to actual needs and amplify rule.In addition, for obtaining result of use preferably, can be with near the zone the touch point as the prompting zone.For example, after user's finger touches touch-screen, near the figure the touch point can be amplified demonstration.
Preferably, at the regional display-object regional graphics of prompting with to obtain corresponding target area, current touch point figure synchronous.Therefore, by pointing out the zone real-time, synchronous display-object regional graphics, when having solved the prior art problem, guaranteed that the user operates the promptness of touch-screen.Need to prove, of the present invention in prompting zone in real time, synchronously the display-object regional graphics be not must realize on the physical significance synchronously, because carry out according to certain sequencing mostly during the computer system processor data, therefore, as long as accomplish almost imperceptible this species diversity of user's vision.
More than introduced the embodiment 1 of touch-screen localization method of the present invention.As shown in Figure 3, be the flow chart of steps of the embodiment 2 of touch-screen localization method of the present invention.In embodiment 2, the position in prompting zone and content be real time altering along with the change of position, touch point.Below, in conjunction with Fig. 3 this embodiment is described further.
Step 301: catch the touch point, obtain contact coordinate.
Step 302: obtain and corresponding target area, touch point figure.
Step 303: the prompting zone is set by presetting rule.
Step 304: protection prompting zone is on-the-spot.
The current figure in prompting zone is kept in the buffer memory.
Step 305: target area figure equal proportion is amplified.
Step 306: at the regional display-object regional graphics of prompting.
Step 307: judge whether position, current touch point changes, if change execution in step 308.
Step 308: recover scene, current prompting zone; Execution in step 301.
When user's finger or employed pointer were mobile on touch-screen, it was on-the-spot at first to recover current prompting zone, was about to current prompting zone and returned to state before the display-object regional graphics; Then, obtain corresponding target area, current touch point figure again according to the position of moving; Reset the prompting zone by presetting rule, protect current prompting zone on-the-spot; Show the described target area figure that obtains again in this prompting zone.So, user's finger or pointer can be seen the content of target area and the exact position of touch point in real time by pointing out the zone under the situation that needn't frame out, when avoiding maloperation, further facilitated user's use.
More than introduced the embodiment 2 of touch-screen localization method of the present invention.Embodiments of the invention 3 are with the difference of the foregoing description: identify corresponding position, current touch point in the prompting zone with foresight.This foresight identifies current actual touch accurately by figure or mark and puts corresponding position in the shown target area figure in this prompting zone, for example, can be small circle or cross figures mark.So, the user can more accurately locate current touch point position according to the foresight in the prompting zone, has further avoided maloperation.It may be noted that, those skilled in the art both can handle, show described foresight to the target area figure that gets access to earlier when enforcement is of the present invention, and then it is this target area graphic presentation is regional in prompting, also can be behind the regional display-object regional graphics of prompting, the described foresight of processes and displays is carried out in this prompting zone, as can be seen, adopt the sort of method can not influence implementation result of the present invention.
Preferably, can adopt diagonal zones to show that principle is provided with the prompting zone.As shown in Figure 2, can be that the boundary is divided into 4 zones with screen with the central point.If the user touch point coordinate in area I, then is provided with the prompting zone at area I V, if the touch point coordinate at area I V, then is provided with the prompting zone in area I; When being positioned at area I I with III, adopt on the touch point coordinate identical principle to be provided with.Show by diagonal zones,, therefore further reduced the maloperation that produces because of unsighted because the current touch point of prompting region distance is far away relatively.The not detailed part of embodiment 3 can be referring to above-mentioned related content.
Need to prove that the above-mentioned method that identifies position, current touch point with foresight in prompting zone is applicable to other embodiments of the invention too.
More than introduced the embodiment of touch-screen localization method of the present invention, by a concrete example the method for the invention has been further described below in conjunction with concrete applied environment and referring to Fig. 4.
MiniGUI is just becoming at present with its characteristics such as cross-platform, simple, easy-to-use and is using the most general a kind of GUI system in the embedded system.In this example, we are by the Hook function of heavily loaded MiniGUI below, and the graph function bitblt that uses this system to provide simultaneously describes as example.In the example below, in order to distinguish mutually with the KeyEvent that the user triggers, this paper is called mouse event with the incident that the user operates touch-screen.
Step 401: heavily loaded Hook function.
Step 402: the capture systems incident, acquisition touch point coordinate (x, y).
Among the MiniGUI, generally, KeyEvent and mouse event are delivered to the final application window from underlying device with its normal approach and handle.MiniGUI provides a kind of mechanism, make us can before these incidents convert corresponding message to and are delivered to concrete window, intercept and capture these incidents, two kinds of selections are arranged then: allow incident continue to transmit the perhaps transmission of break event along normal path.This mechanism is exactly Hook mechanism.Hook is exactly a call back function in fact, if application program registration has Hook, system will pass-along message call this call back function midway, the rreturn value according to this call back function judges whether to continue pass-along message then.In this embodiment, we intercept and capture this incident by registration and heavily loaded Hook function when the user triggers mouse event (click event) after, and (x y), carries out follow-up processing then in described Hook function according to the parameter acquisition touch point coordinate of this incident.For example:
The Hook call back function prototype of MiniGUI-Lite Server is:
typedefint(*SRVEVTHOOK)(PMSG?pMsg)
Wherein, pMsg wants the message transmitted structured fingers.The value of Server in can the message structure of hack pointed.When this call back function returns HOOK_GOON, the Server process will continue the processing of incident, and cancellation is handled when returning HOOK_STOP.
Server can register the Hook function by following function in system:
SRVEVTHOOK?GUIAPI?SetServerEventHook(SRVEVTHOOKSrvEvtHook)
Step 403: the type of judging mouse event: if click event, execution in step 403; If moving event or leave event, execution in step 410.
According to the action of user on touch-screen, system is divided into click event (Downevent), moving event (Move event) and leave event (Up Event) with the type of mouse event.When the user operated touch-screen, system obtained the type of current mouse event, carried out corresponding step then respectively.
Step 404: obtain and the corresponding target area of touch point coordinate figure.
Wide, the height of supposing the LCD viewing area are respectively: W, H, and screen center's point coordinate is so: (W/2, H/2);
Suppose to get the wide of target area figure, height is respectively: Wuser, Huser, establish Wuser=W/4, Huser=H/4;
The starting point coordinate of getting conspicuous mark regional graphics for (Xuser, Yuser), can calculate Xuser and Yuser respectively according to following rule:
If(x-W/8)＜＝0，Xuser＝0；
Else?if(x+W/8)＞＝W，Xuser＝W-Wuser；
Else?Xuser＝x-W/8
If(y-H/8)＜＝0，Yuser＝0；
Else?if(y+H/8)＞＝H，Yuser＝H-Huser；
Else?Yuser＝y-H/8
So, we (Xuser Yuesr) is starting point, utilizes the graph function bitblt that system provides or gets widely and high for not to be the regional graphics of Wuser, Huser, and this figure is copied to buffer memory as the target area figure with coordinate.
Step 405: target area figure equal proportion is amplified.
This step is an optional step.If those skilled in the art are implementing to think when of the present invention that not needing will the target area figure to amplify the back shows, direct execution in step 405 then.
Step 406: the position that in the figure of target area, identifies current touch point correspondence with foresight.
We still suppose the touch point coordinate for (x, y); The figure of target area is wide, and height is respectively: Wuser, Huser; The starting point coordinate of target area figure be (Xuser Yuser), can show foresight according to the methods below:
For the target area figure in the buffer memory, with (x-Xuser-3, y-Yuser) be starting point, (x-Xuser+3 y-Yuser) draws a straight line for terminal point with graph function, with (x-Xuser, y-Yuser-3) be starting point, (x-Xuser y-Yuser+3) draws a straight line for terminal point with graph function again, the sign of so just drawing on the touch point "+".Certainly, also can adopt the draw foresight of other type of similar method.
Step 407: calculate the starting point coordinate that is used for the display reminding zone.
For the prompting zone is set, at first calculate the starting point coordinate that is used for the display reminding zone.Suppose this coordinate for (Xdest, Ydest), the touch point coordinate (x, y), the wide and height of screen is respectively W, H, the wide and height of target area figure is respectively Wuser and Huser, referring to Fig. 2, can be by following regular calculating Xdest and Ydest:
If the touch point (x y) is positioned at area I: x＜=W/2 and y＜=H/2, then (Xdest, Ydest) be (W-Wuser, H-Huser); If the touch point (x y) is positioned at area I I:x＜=W/2 and y＜=H/2, then (Xdest, Ydest) be (0, H-Huser);
(x y) is positioned at area I II:x＜=W/2 and y＜=H/2, and then (Xdest Ydest) is (W-Wuser, 0) as if the touch point;
(x y) is positioned at area I V:x＜=W/2 and y＜=H/2, and then (Xdest Ydest) is (0,0) as if the touch point.
Step 408: protection prompting zone is on-the-spot.
(Xdest Ydest) is starting point, and according to target Qu Yu wide Wuser and high Huser obtain the graphics memory of corresponding size in buffer memory with coordinate.The purpose of doing like this is, when the position, touch point changes, will point out the zone to revert to virgin state with the figure in the described buffer memory.
Step 409: at the regional display-object regional graphics of prompting.
(Xdest Ydest) is starting point, according to target the target area figure in the big or small display buffer of regional graphics with coordinate.
Step 410: the next stage that mouse event is passed to the GUI system is handled.
For example,, then this incident is continued to be passed to window application, the processing after executive button is clicked if the user is a button of wanting in the window.Afterwards, mouse event is next time monitored by system, if there is new mouse event that new processing takes place then to begin.
Step 411: judge the current new mouse event generation that whether has, if having, execution in step 402, otherwise, finish this processing.
Step 412: recover scene, prompting zone.
Replace current prompting zone with the prompting zone original figure of storing in the buffer memory.
Step 413: judge the mouse event type, if moving event, execution in step 404; If leave event, execution in step 410.
Below in conjunction with top example, in conjunction with concrete data declaration implementation result of the present invention:
Suppose the wide W=240 of screen, high H=320, the figure of getting the zone, touch point is wide, and height is respectively: Wuser=60, Huser=80.Three consecutive point (70,80) are arranged, (70,83), (70,85).The user wishes to click (70,83) this point, but when the user clicked touch-screen with finger, touching the detected touch point of detection part was (70,80), at this moment can be (40 with starting point, 40), wide height is that figure on the 60*80LCD shows at (180,240) starting point place, and in (30,40) of display graphics point place usefulness "+" the current click location of sign user.The user finds that click location is not its position that really needs after seeing figure, and he can be according to the offset direction, and finger moves to the right.When he sees "+" when moving on to (70,83) point, just can decontrol finger.
A kind of touch-screen localization method of the present invention has below been described in conjunction with specific embodiments.Below, with reference to content mentioned above,, the embodiment of a kind of touch-screen locating device of the present invention is introduced simultaneously with reference to Fig. 5.As shown in Figure 5, described device comprises:
Target area acquiring unit 501 is used to obtain and corresponding target area, current touch point figure;
The prompting zone is provided with unit 502, is used for by presetting rule the prompting zone being set;
Amplifying unit 503 is used for the target area figure that amplification target zone acquiring unit 501 is obtained;
Display unit 504 is used for target area graphic presentation that amplifying unit 503 is amplified set prompting zone, unit 502 is set in the prompting zone.
Preferably, described device also comprises: lock unit 505 is used to control the target area figure that display unit 504 is obtained at described prompting area synchronized display-object zone acquiring unit 501.
Preferably, described device also comprises: site disposal unit 506, and it is on-the-spot to be used for protection prompting zone; And behind the position change of touch point, recover to point out the zone on-the-spot.
Described prompting zone is provided with unit 502 and also comprises: coordinate Calculation unit 5021, be used for the starting point coordinate according to the coordinate Calculation prompting zone of current touch point correspondence, this starting point coordinate is the reference position that described display unit 503 is used to show described target area figure.
Preferably, described device also comprises: foresight identify unit 507 is used in described prompting zone set prompting zone, unit identifies current touch point correspondence with foresight position being set.
Below said apparatus is realized that a preferred process of touch-screen location is described:
At first, the target area acquiring unit obtains the target area figure of current touch point correspondence; The foresight identify unit identifies the touch point with foresight in this target area figure; Then, amplifying unit amplifies this target area figure equal proportion; The starting point coordinate in zone is pointed out according to the coordinate Calculation of current touch point correspondence in the coordinate Calculation unit, and should be pointed out the scene in zone by the site disposal cell protection; Lock unit control display unit is at the starting point coordinate display-object regional graphics in prompting zone; Behind the position change of touch point, it is on-the-spot that the site disposal unit recovers the prompting zone.
An embodiment of touch-screen locating device of the present invention has more than been described.For this device embodiment, because it is substantially corresponding to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
Use above-mentioned touch-screen locating device, the invention discloses a kind of mobile phone, comprise touch-screen and fuselage, described mobile phone also comprises: the target area acquiring unit is used to obtain the target area figure of current touch point correspondence; The prompting zone is provided with the unit, is used for by presetting rule the prompting zone being set; Amplifying unit is used for the target area figure that amplification target zone acquiring unit is obtained; Display unit, the target area graphic presentation that is used for amplifying unit is amplified is provided with set prompting zone, unit in the prompting zone.
The not detailed part of this mobile phone embodiment sees also the identical or corresponding part of method embodiment above or device embodiment.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, and identical similar part is mutually referring to getting final product between each embodiment, and each embodiment stresses all is difference with other embodiment.
More than to a kind of touch-screen localization method provided by the present invention, device, be described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (12)
1, a kind of touch-screen localization method is characterized in that, described method comprises:
Obtain the target area figure of current touch point correspondence;
By presetting rule the prompting zone is set;
Amplify the described target area figure that obtains; This target area graphic presentation is regional in described prompting.
2, method according to claim 1 is characterized in that, and is described synchronous at the regional display-object regional graphics of the prompting target area figure corresponding with obtaining current touch point.
3, method according to claim 1 and 2 is characterized in that, described method also comprises:
Protection prompting zone is on-the-spot; Behind the position change of touch point, recover scene, prompting zone.
4, method according to claim 1 is characterized in that, the described setting by presetting rule points out the zone to comprise:
The regional starting point coordinate of coordinate Calculation prompting according to the touch point correspondence; This starting point coordinate is the reference position that shows described target area figure.
5, method according to claim 4 is characterized in that, and is described regional about screen center's point symmetry with corresponding target area, touch point figure and prompting.
6, method according to claim 1 is characterized in that, described method also comprises:
Identify the position of current touch point correspondence with foresight in described prompting zone.
7, a kind of touch-screen locating device is characterized in that, described device comprises:
The target area acquiring unit is used to obtain the target area figure of current touch point correspondence;
The prompting zone is provided with the unit, is used for by presetting rule the prompting zone being set;
Amplifying unit is used for the target area figure that amplification target zone acquiring unit is obtained;
Display unit, the target area graphic presentation that is used for amplifying unit is amplified is provided with set prompting zone, unit in the prompting zone.
8, device according to claim 7 is characterized in that, described device also comprises:
Lock unit is used to control the target area figure that display unit is obtained at described prompting area synchronized display-object zone acquiring unit.
9, according to claim 7 or 8 described devices, it is characterized in that described device also comprises:
The site disposal unit, it is on-the-spot to be used for protection prompting zone; And behind the position change of touch point, recover to point out the zone on-the-spot.
10, device according to claim 9 is characterized in that, described prompting zone is provided with the unit and also comprises:
The coordinate Calculation unit is used for the starting point coordinate according to the coordinate Calculation prompting zone of current touch point correspondence, and this starting point coordinate is the reference position that described display unit is used to show described target area figure.
11, device according to claim 7 is characterized in that, described device also comprises:
The foresight identify unit is used in described prompting zone set prompting zone, unit identifies current touch point correspondence with foresight position being set.
12, a kind of mobile phone comprises: touch-screen and fuselage is characterized in that described mobile phone also comprises:
The target area acquiring unit is used to obtain the target area figure of current touch point correspondence;
The prompting zone is provided with the unit, is used for by presetting rule the prompting zone being set;
Amplifying unit is used for the target area figure that amplification target zone acquiring unit is obtained;
Display unit, the target area graphic presentation that is used for amplifying unit is amplified is provided with set prompting zone, unit in the prompting zone.
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| CNA2007100443014A CN101354618A (en) | 2007-07-24 | 2007-07-24 | Method and apparatus for positioning touch screen |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976172A (en) * | 2010-11-13 | 2011-02-16 | 上海交通大学 | Dynamic display system of pinyin gliding input keyboard and display method thereof |
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