CN101655757A - Gesture detection method of touch pad - Google Patents
Gesture detection method of touch pad Download PDFInfo
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- CN101655757A CN101655757A CN200910182176A CN200910182176A CN101655757A CN 101655757 A CN101655757 A CN 101655757A CN 200910182176 A CN200910182176 A CN 200910182176A CN 200910182176 A CN200910182176 A CN 200910182176A CN 101655757 A CN101655757 A CN 101655757A
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- trackpad
- effective width
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- position coordinate
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Abstract
The invention relates to a gesture detection method on a touch pad, comprising the following steps: (A) determining a touch pad that an object touches; (B) detecting the effective width area of the touch pad that the object touches; (C) recording edge position coordinates of the effective width area; (D) judging if a difference value between the edge position coordinates of the effective width area and edge position coordinates of the touch pad is within the width range of a preset area or not; (E) if the difference value is within the range, sending a first gesture signal; (F) judging if theobject moves on the touch pad or not; (G) and if the object moves on the touch pad, sending a second gesture signal. The invention is simple, can effectively remove the interference brought by noise and is convenient for distinguishing various kinds of gesture operation.
Description
Technical field
The present invention relates to a kind of detection method of Trackpad, refer in particular to a kind of method of gestures detection of Trackpad.
Background technology
Trackpad is a kind of for point the input media that slides and move with the control cursor on level and smooth panel, because its area is little, volume is light, has been widely used on the electronic equipments such as personal digital assistant (PDA), mobile phone, palm PC, flat computer.
Existing Trackpad gesture mainly contains to be clicked, double-click, pulls and rolling etc.At present, just single, double-click the operating gesture of class, mainly be that the size of the capacitive sensing amount by detecting Trackpad is determined to touch object and whether contacted or leave Trackpad, to produce corresponding sequential combination, thereby realize different gesture operations, but really be difficult to satisfy the requirements at the higher level of effective and degree of accuracy, because electric capacity is easy to be subjected to external environment (humidity, temperature, radio) interference, so in order to address these problems, some improving technologies have appearred, one class such as Chinese patent application number are the patent of CN 200510077572, and it utilizes exactly sets up electric capacity threshold values and variation tendency to reduce this external interference, perhaps judge the validity of touching and gesture according to the threshold values of pressure; The another kind of foundation of passing through the accumulation of detection induction amount as judgement, when the accumulation of induction amount during greater than a systemic presupposition critical value, expression has object touching Trackpad, otherwise, when induction amount during less than this systemic presupposition critical value, the expression object leaves does not have object to exist on Trackpad or the Trackpad, the judgement that leads to errors but this kind method all is subject to the interference of outside noise only relies on the change that detects capacitance whether to judge the drawback of touch-control nor can fundamentally overcome in traditional Trackpad gesture identification method.
And for rolling class gesture, mainly be relatively to send corresponding scrolling signal by the time that in a predeterminable area, stops and reference time, also having a kind of mode is the function that the displacement of number by detecting touching object and object is controlled scrolling, which kind of mode no matter, the user is easy to cause unnecessary maloperation in use, and obscure than being easier between the various gestures, so need a kind of can be anti-interference, degree of accuracy is high again and than the recognition methods that is easier to distinguish various gestures.
Therefore need provide a kind of detection method that can prevent noise and be convenient to operate and distinguish easily various gestures for users.
Summary of the invention
The actual technical matters to be solved of the present invention is how to provide a kind of noise that can prevent easily to distinguish the detection method of various gestures again.In order to achieve the above object, the invention provides a kind of on Trackpad the method for gestures detection, it comprises the steps: that (A) confirms that an object touches described Trackpad; (B) the described object of detecting is touched the effective width zone of described Trackpad; (C) the marginal position coordinate in the described effective width of record zone; (D) judge that the difference of marginal position coordinate of this effective width marginal position coordinate and described Trackpad is whether in the width range of a predeterminable area; (E) if this difference in this scope, is sent first hand signal; (F) judge whether described object moves on described Trackpad; (G) mobile if described object has on Trackpad, send second hand signal.
The present invention also provides a kind of gesture detecting method, and it comprises the steps: that (A) confirms that an object touches described Trackpad; (B) the described object of detecting is touched the effective width zone of described Trackpad; (C) the marginal position coordinate in record described effective width zone, thus according to this marginal position coordinate Calculation should the zone first centre coordinate; (D) judge whether described object moves on described Trackpad; (E) if described object does not move, confirm that then described object leaves described Trackpad on described Trackpad; (F) send first hand signal; (G) the described object of affirmation is touched described Trackpad for the second time; (H) write down second centre coordinate that this object is touched the effective width zone of described Trackpad for the second time; (I) judge that whether the difference of twice centre coordinate is less than a special value; (J) if difference less than described special value, is then sent second hand signal, to finish first hand signal; (K) send one the 3rd hand signal.
The effective width zone that utilizes on the object contact Trackpad of the present invention, thereby thereby the method for detecting the edge coordinate of its effective width is discerned double-click, gesture operations such as rolling, and not only method is simple, can effectively remove the interference that noise brings, and be convenient to distinguish various gesture operations.
Description of drawings
Fig. 1 is a Trackpad of the present invention;
Fig. 2 is that the present invention points the synoptic diagram when being positioned over the scrolling zone;
Fig. 3 is that the present invention points the synoptic diagram when double-clicking when being positioned over the cursor operations zone;
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples, and inspection method of the present invention does not need to rely on the improvement of hardware detecting circuit, just can improve the resistivity of noise, and can distinguish multiple gesture.
Confirm the detection method of object scrolling:
Please refer to shown in Figure 1, described Trackpad 1 is divided into three zones, cursor operations zone 10, vertical scrolling zone 11 and horizontal scrolling zone 12, wherein, if the user does not need to carry out rolling function, can not start its scrolling zone earlier, whole touch pad all is cursor operations zone 10 like this, when needs carry out rolling function, can restart corresponding scrolling zone, whether touch for the first time default scrolling zone as detecting touch object as finger, if touching first, then just can continue to judge whether to start corresponding scrolling zone, so system can set at least one scrolling zone in advance, described scrolling zone is in case set, the width in its scrolling zone is also just fixed thereupon so, be example now with vertical scrolling zone 11, if the vertical scrolling peak width is Wx, effective coverage S according to this Trackpad 1 of user's finger touches can calculate its marginal position coordinate points S1, as shown in Figure 2, if the coordinate figure with this Trackpad A point place is a true origin, B then, the coordinate points that C and D are ordered is respectively (0, Ymax), (Xmax, Ymax) and (Xmax, 0), the marginal position coordinate S1 (X1 of this effective width S so, Y1) be meant coordinate figure (Xmax farthest with described Trackpad marginal position CD place, Y) coordinate points, after user's finger touches this Trackpad 1 for the first time, at first detect the effective width region S of the described Trackpad of described finger touches, write down a position coordinates point S1 (X1 of described effective width region S, Y1), promptly with Trackpad marginal position CD place coordinate points farthest, whether the difference of horizontal direction of marginal position CD place coordinate of judging this effective width region S marginal position point coordinate S1 and described Trackpad 1 then is in the width range of a default scrolling zone Wx, that is to say, need to judge that two coordinate figure horizontal directions are the difference of X-direction, be formulated as follows: Xmax-X1≤Wx, if described difference is not in this Wx scope, then can discern this touch action and be in the cursor operations zone 10, then abandon discerning the scrolling operation; If described difference in described Wx scope, is then sent one first hand signal, promptly start this rolling function; After success started this rolling function, it was mobile to judge that then whether this finger is in vertical direction that Y direction has on described Trackpad 1, if detecting is moved less than any, then abandons scrolling and operates; If detect any moving, then carry out the rolling function on the vertical direction, if this moment is the trend that the Y value of coordinate points tapers off, then the corresponding scrolling page of control upwards stirs, if the Y value of coordinate points is the trend that increases progressively, then the corresponding scrolling page of control stirs downwards, has so just finished whole scrolling operation.
In like manner, if establishing the width in horizontal scrolling zone 12 is Wy, and the effective coverage of this Trackpad of user's finger contacts is Q, the marginal position coordinate Q1 (X1 of this effective width Q so, Y1) be meant coordinate figure (X farthest with described Trackpad 1 marginal position BC place, Ymax) coordinate points, judge then whether this effective width zone Q marginal position point coordinate Q1 and the difference of the vertical direction of the marginal position BC place coordinate of described Trackpad are preset in the width range of the regional Wy of scrolling one, that is to say, need to judge that two coordinate figure vertical direction are the difference of Y direction, be formulated as follows: Ymax-Y1≤Wy
If described difference not in this Wy scope, then can be discerned this touch action and be in the cursor operations zone 10, abandon discerning the scrolling operation; If described difference in described Wy scope, is then sent one first hand signal, promptly start this rolling function; After success starts this rolling function, judge then this finger on described Trackpad 1 whether be in the horizontal direction have on the X-direction mobile, if detect any moving, then carry out rolling function, this moment, if then the corresponding scrolling page of control stirred left the trend that the X value of coordinate points tapers off, and was the trend that increases progressively as if the X value of coordinate points, then the corresponding scrolling page of control stirs to the right, has so just finished whole scrolling operation.
Confirm the detection method that object is double-clicked:
Please in conjunction with consulting Fig. 1 and shown in Figure 3, at first confirm an object touch for the first time as finger as described in Trackpad 1, the effective width zone of detecting the described Trackpad of described finger touches is M, this regional width is W, M can obtain the marginal position coordinate of this zone M according to this effective width zone, thereby can finally determine the center point coordinate M in the M of this zone.(Mx, My) coordinate figure, then judge the user point on described Trackpad 1, whether have mobile, if described finger has mobile on Trackpad 1, then abandon double-clicking identification maneuver, if described finger does not move on Trackpad 1, confirm that then this finger leaves described Trackpad 1, send one first hand signal (comprise button pressing signal), confirm that then described finger touches described Trackpad 1 for the second time, if touching the effective width zone of described Trackpad 1 for the second time, finger is N, N can obtain the marginal position coordinate of this zone N according to this effective width zone, thereby can finally determine the center point coordinate N in the N of this zone.The coordinate figure of (Nx, Ny), at last, whether the difference of judging two center point coordinates is less than a special value, wherein special value is the relevant numerical value of effective width that and finger contact Trackpad, refer in particular to finger and touch for the first time half of width value W of the effective coverage M of this Trackpad 1, be formulated as follows:
With
If finger does not satisfy these two conditions in the touching back for the second time simultaneously, then abandon double-clicking identifying operation; If satisfy above-mentioned two conditions simultaneously, then can send second hand signal (comprising button relieving signal), to finish first hand signal, send one the 3rd hand signal (comprise button pressing the composition signal of decontroling with button) at last, so just finished the manipulation of whole double-click.
The method of the above rolling and double-click has all been utilized the effective width zone of the described Trackpad of finger touches, and this new method not only can effectively be removed the interference that noise brings, and method is easy, the operation is simpler.
Claims (17)
1. the method for a gestures detection on Trackpad, it may further comprise the steps:
(A) affirmation one object is touched described Trackpad;
(B) the described object of detecting is touched the effective width zone of described Trackpad;
(C) the marginal position coordinate in the described effective width of record zone;
(D) judge that the difference of marginal position coordinate of this effective width marginal position coordinate and described Trackpad is whether in the width range of a predeterminable area;
(E) if this difference in this scope, is sent first hand signal;
(F) judge whether described object moves on described Trackpad;
(G) mobile if described object has on Trackpad, send second hand signal.
2. the method for claim 1, it is characterized in that: described (C) step is meant: write down described effective width zone from a described Trackpad marginal position coordinate marginal position coordinate farthest.
3. the method for claim 1, it is characterized in that: described (D) step is meant: judge described object touch in the effective width of this Trackpad from this Trackpad marginal position coordinate farthest a marginal position coordinate and the difference of the marginal position coordinate of this Trackpad whether in the width of a predeterminable area.
4. the method for claim 1, it is characterized in that: the first gesture signal packet in described (E) step is drawn together the startup rolling function.
5. the method for claim 1 is characterized in that: operate if this difference not in described scope, is then abandoned this gesture identification in described (E) step.
6. the method for claim 1 is characterized in that: in described (F) step, if the difference (E) in the step be horizontal direction relatively, then whether a judgment object has mobile in vertical direction.
7. the method for claim 1 is characterized in that: in described (F) step, if the difference (E) in the step be vertical direction relatively, then whether a judgment object has mobile in the horizontal direction.
8. the method for claim 1, it is characterized in that: the second gesture signal packet in described (G) step is drawn together and is sent the scrolling signal.
9. the method for claim 1 is characterized in that: if described object does not move, then abandon this gesture identification operation in described (G) step on described Trackpad.
10. the method for a gestures detection on Trackpad, it may further comprise the steps:
(A) affirmation one object is touched described Trackpad;
(B) the described object of detecting is touched the effective width zone of described Trackpad;
(C) the marginal position coordinate in record described effective width zone, thus according to this marginal position coordinate Calculation should the zone first centre coordinate;
(D) judge whether described object moves on described Trackpad;
(E) if described object does not move, confirm that then described object leaves described Trackpad on described Trackpad;
(F) send first hand signal;
(G) the described object of affirmation is touched described Trackpad for the second time;
(H) write down second centre coordinate that this object is touched the effective width zone of described Trackpad for the second time;
(I) judge that whether the difference of twice centre coordinate is less than a special value;
(J) if difference less than described special value, is then sent second hand signal, to finish first hand signal;
(K) send one the 3rd hand signal.
11. method as claimed in claim 10 is characterized in that: mobile in described (E) step if described object has on described Trackpad, then abandon this gesture identification operation.
12. method as claimed in claim 10 is characterized in that: in described (F) step, the first gesture signal packet is drawn together button and is being pressed signal.
13. method as claimed in claim 10 is characterized in that: in described (H) step, described second centre coordinate is to determine according to the marginal position coordinate that described object is touched the effective width of described Trackpad for the second time.
14. method as claimed in claim 10 is characterized in that: in described (I) step, described special value is meant that one is touched the relevant numerical value of effective width of described Trackpad with object.
15. method as claimed in claim 10 is characterized in that: in described (I) step,, then abandon this gesture identification operation if described difference is not less than described special value.
16. method as claimed in claim 10 is characterized in that: in described (J) step, the second gesture signal packet is drawn together button and is decontroled signal.
17. method as claimed in claim 10 is characterized in that: in described (K) step, the 3rd hand signal comprises that button pressing the composition signal of decontroling with button.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101821762A CN101655757B (en) | 2009-07-15 | 2009-07-15 | Gesture detection method of touch pad |
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| CN2009101821762A CN101655757B (en) | 2009-07-15 | 2009-07-15 | Gesture detection method of touch pad |
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| CN101655757A true CN101655757A (en) | 2010-02-24 |
| CN101655757B CN101655757B (en) | 2012-04-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571057A (en) * | 2011-12-22 | 2012-07-11 | 胡孙荣 | Non-location touch key control device and method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5943052A (en) * | 1997-08-12 | 1999-08-24 | Synaptics, Incorporated | Method and apparatus for scroll bar control |
| JP3970456B2 (en) * | 1999-01-21 | 2007-09-05 | 松下電器産業株式会社 | Coordinate input device |
| CN1306377C (en) * | 2004-07-14 | 2007-03-21 | 义隆电子股份有限公司 | Method for controlling reel convolution on the touch pad |
| CN1862467A (en) * | 2005-05-10 | 2006-11-15 | 义隆电子股份有限公司 | Touch panel with intelligent automatic rolling function and controlling method thereof |
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2009
- 2009-07-15 CN CN2009101821762A patent/CN101655757B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571057A (en) * | 2011-12-22 | 2012-07-11 | 胡孙荣 | Non-location touch key control device and method thereof |
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| CN101655757B (en) | 2012-04-25 |
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