CN101655756A - Gesture detection method of touch pad - Google Patents
Gesture detection method of touch pad Download PDFInfo
- Publication number
- CN101655756A CN101655756A CN200910182175A CN200910182175A CN101655756A CN 101655756 A CN101655756 A CN 101655756A CN 200910182175 A CN200910182175 A CN 200910182175A CN 200910182175 A CN200910182175 A CN 200910182175A CN 101655756 A CN101655756 A CN 101655756A
- Authority
- CN
- China
- Prior art keywords
- trackpad
- induction amount
- time
- peak value
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Position Input By Displaying (AREA)
Abstract
The invention relates to a gesture detection method on a touch pad, which is used for detecting the gesture operation on the touch pad by utilizing an effective area that an object touches the touch pad and a mode of combining peak values of induction. The method is simple and easy to implement and can effectively remove the interference brought by noise, and therefore, the anti-interference ability is enhanced.
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, a kind of mode is to judge by the increment trend of the capacitive sensing amount that detects Trackpad whether the touching object contacts or leave Trackpad, to produce corresponding sequential combination, thereby realize different gesture operations, it mainly is to decide corresponding gesture by time and induction amount, in certain reference time, keep the trend of increase when the induction amount, expression has object to touch Trackpad, otherwise, in certain reference time, keep the trend of minimizing when the induction amount, the expression object leaves Trackpad, the increment trend of this dependence induction amount judges whether the method for object touching Trackpad, though improved because clear and definite inadequately in operational action, causes the shortcoming that Trackpad can't identification, but it still is subject to noise, antijamming capability is not strong, and because size that can't inspected object, so cause that more easily erroneous judgement is disconnected; Another kind of mode is that accumulation by detecting the induction amount is as the foundation of judging, when the accumulation of induction amount during greater than a systemic presupposition threshold peak, expression has object touching Trackpad, otherwise, when induction amount during less than this systemic presupposition threshold peak, 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 also 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.
Therefore need can prevent noise and the detection method of being convenient to operate for users provide a kind of.
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 to be convenient to the detection method of operating 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: to confirm that an object touches described Trackpad; Detect described object and touch the effective coverage of described Trackpad; Judge that described effective coverage is whether in a default effective range; If the effective coverage is in this default effective range, and it is mobile to confirm that described object does not have on described Trackpad, confirms that then described object leaves described Trackpad; Send first hand signal; Calculate the time departure that described object leaves described Trackpad; And if described time departure greater than a reference time, is then sent one second hand signal.
The present invention also provides a kind of gesture detecting method, and it comprises the steps: to confirm that an object touches described Trackpad for the first time; Detect described object and touch first effective coverage of described Trackpad for the first time; Judge that described first effective coverage is whether in a default effective range; If first effective coverage is in this default effective range, and it is mobile to confirm that described object does not have on described Trackpad, confirms that then described object leaves described Trackpad for the first time; Send one first hand signal; Calculate the time departure that described object leaves described Trackpad; If described time departure, is then confirmed described object less than a reference time and is touched described Trackpad for the second time; Detect described object and touch second effective coverage of described Trackpad for the second time; Judge that second effective coverage is whether also in described default effective range; If second effective coverage is also in this default effective range, and confirm that described object does not move, and confirms that then described object leaves described Trackpad for the second time on described Trackpad; Send one second hand signal, to finish first hand signal; And send one the 3rd hand signal.
The mode that the peak value that utilizes effective coverage on the object contact Trackpad and induction amount of the present invention combines detects the gesture operation on the Trackpad, and not only method is simple, and can effectively remove the interference that noise brings, and antijamming capability strengthens.
Description of drawings
Fig. 1 is that the present invention does not have finger touches or finger and leaves the induction amount variation diagram on the X-direction behind the Trackpad;
Induction amount variation diagram when Fig. 2 is a finger touches Trackpad of the present invention on the X-direction;
Fig. 3 is touching area schematic when finger is clicked on the present invention's two dimension Trackpad;
Fig. 4 is touching area schematic when finger is double-clicked on the present invention's two dimension Trackpad;
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples, a two-dimentional Trackpad, if when touching object such as this Trackpad of finger touches, the induction amount of its touch position (for example capacitive sensing amount or resistance) will produce change, and the control circuit that connects this Trackpad can finally be converted into the induction amount with electric capacity on the Trackpad or resistance, 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 simple to operate.
Confirm the detection method of object touching:
Object is touched Trackpad 1 for the first time as finger, at first can use software compensation external environmental interference value, make the external environmental interference value be tending towards a steady state value, as about going to zero, as shown in Figure 1, begin to detect induction amount on this Trackpad 1 then, if the induction amount that detects on X-axis and Y direction all has significant change, and peak value has appearred, a maximum induction amount and a minimum induction amount have promptly all appearred, and any peak value on the diaxon is simultaneously all greater than default threshold peak, just expression has finger touches to arrive described Trackpad 1, with the X-axis is example, please refer to the variation diagram of induction amount shown in Figure 2, a maximum induction amount Xmax and minimum induction amount Xmin have appearred among the whole figure, in like manner in the induction amount variation diagram of Y-axis (not signal), a maximum induction amount Ymax and minimum induction amount Ymin also can appear, any one is greater than the threshold peak No that sets among Xmax and Xmin, any one is also greater than the threshold peak No that sets among Ymax and the Ymin simultaneously, and then expression has finger touches to arrive this Trackpad 1.
Confirm that object does not have the detection method that moves:
Detect the induction amount of described Trackpad 1, and when determining to meet " detection mode of confirming the object touching ", on X-axis, the distance that any one induction amount moves among maximum induction amount Xmax and the minimum induction amount Xmin is in a preset threshold value Lo, simultaneously, on Y-axis, the distance that any one induction amount moves among maximum induction amount Ymax and the minimum induction amount Ymin also in this preset threshold value Lo, thinks that then finger does not move on this Trackpad.
Confirm the detection method that object leaves:
Detect the induction amount of this Trackpad 1, if the value of induction amount that detects X-axis and Y-axis is from the peak value in when touching initially preceding steady state value that all suddenly change back again, i.e. induction amount goes to zero once more, then the expression finger leaves this Trackpad 1, the variation diagram of induction amount as shown in Figure 1, induction this moment amount all goes to zero, and then the expression finger leaves this Trackpad 1.
Click the detection method of gesture:
After at first determining to meet " detection method of confirming the object touching ", detect the effective coverage S1 of the described Trackpad 1 of described finger touches then, judge then whether this effective coverage S1 presets in the effective range So one, if effective coverage S1 is in this default effective range So, as shown in Figure 3, and after determining to meet " confirming that object is in the detection method that does not have on the Trackpad to move " and determining to meet " confirming the detection method that object leaves ", send one first hand signal (for example button is being pressed signal) this moment, calculate the time departure that this finger leaves described Trackpad 1 then, if time departure greater than a reference time To, is then sent one second hand signal (for example button relieving signal).
Double-click the detection method of gesture:
After at first determining to meet " detection method of confirming the object touching ", detect described finger then and touch for the first time the first effective coverage S1 of described Trackpad, judge that then this first effective coverage S1 is whether in default effective range So, if this first effective coverage S1 is in this default effective range So, and after determining to meet " confirming that object is in the detection method that does not have on the Trackpad to move " and determining to meet " confirming the detection method that object leaves ", send one first hand signal (for example button is being pressed signal), calculate the time departure that this finger leaves this Trackpad then, if time departure is less than a reference time To, after determining to meet " detection method of confirming the object touching ", continue the detecting finger and touch the effective coverage S2 of this Trackpad for the second time, judge that this second effective coverage S2 is whether also in this default effective range So, if this second effective coverage S2 is also in this default effective range So, as shown in Figure 4, and after determining to meet " confirming that object is in the detection method that does not have on the Trackpad to move " and determining to meet " confirming the detection method that object leaves ", send one second hand signal (for example button relieving signal), to finish first hand signal (for example button is being pressed signal), send one the 3rd hand signal (for example button is being pressed the composition signal of decontroling with button) at last, to finish whole double click operation.
In each above-mentioned embodiment, the mode of having utilized the peak value of the effective coverage of finger contact Trackpad and induction amount to combine detects the gesture operation on the Trackpad, can effectively remove the interference that noise brings, and antijamming capability strengthens.
Above embodiment only limits to illustrate the present invention, but not is confined to the present invention.
Claims (18)
1. the method for a gestures detection on Trackpad, it may further comprise the steps:
Confirm that an object touches described Trackpad;
Detect described object and touch the effective coverage of described Trackpad;
Judge that described effective coverage is whether in a default effective range;
If the effective coverage is in this default effective range, and it is mobile to confirm that described object does not have on described Trackpad, confirms that then described object leaves described Trackpad;
Send one first hand signal;
Calculate the time departure that described object leaves described Trackpad; And
If described time departure greater than a reference time, is then sent one second hand signal.
2. the method for claim 1 is characterized in that: described affirmation object touching is described
The step of Trackpad comprises the following steps:
Detect the induction amount of described Trackpad; And
If the peak value of described induction amount, is represented described object greater than default threshold peak and is touched described Trackpad.
3. method as claimed in claim 2 is characterized in that: the peak value of described induction amount is meant any peak value on the X-axis and any peak value on the Y-axis, and both need are simultaneously greater than described default threshold peak, represents that just described object touches described Trackpad.
4. the method for claim 1 is characterized in that: the step that the described object of described affirmation does not have to move on described Trackpad comprises the following steps:
Detect the induction amount of described Trackpad; And
When the peak value of described induction amount greater than default threshold peak, and the moving in a preset threshold value of described peak value thinks that then described object does not move on described Trackpad.
5. the method for claim 1, it is characterized in that: the step that the described object of described affirmation leaves described Trackpad comprises the following steps:
Detect the induction amount of described Trackpad; And
The steady state value if described induction amount is suddenlyd change back again represents that then described object leaves described Trackpad.
6. method as claimed in claim 4 is characterized in that: described steady state value is meant that the value of induction amount is zero.
7. the method for claim 1 is characterized in that: if this gesture identification operation not in described default effective range, is then abandoned in described effective coverage.
8. the method for claim 1, it is characterized in that: the described first gesture signal packet is drawn together button and is being pressed signal.
9. the method for claim 1 is characterized in that: the described second gesture signal packet is drawn together button and is decontroled signal.
10. the method for a gestures detection on Trackpad, it may further comprise the steps:
Confirm that an object touches described Trackpad for the first time;
Detect described object and touch first effective coverage of described Trackpad;
Judge that described first effective coverage is whether in a default effective range;
If first effective coverage is in this default effective range, and it is mobile to confirm that described object does not have on described Trackpad, confirms that then described object leaves described Trackpad for the first time;
Send one first hand signal;
Calculate the time departure that described object leaves described Trackpad;
If described time departure, is then confirmed described object less than a reference time and is touched described Trackpad for the second time;
Detect described object and touch second effective coverage of described Trackpad for the second time;
Judge that second effective coverage is whether also in described default effective range;
If second effective coverage is also in this default effective range, and confirm that described object does not move, and confirms that then described object leaves described Trackpad for the second time on described Trackpad;
Send one second hand signal, to finish first hand signal; And
Send one the 3rd hand signal.
11. method as claimed in claim 10 is characterized in that: the described object of described affirmation for the first time and the step of touching described Trackpad for the second time may further comprise the steps:
Detect the induction amount of described Trackpad; And
If the peak value of described induction amount, is represented described object greater than default threshold peak and is touched described Trackpad.
12. method as claimed in claim 11 is characterized in that: the peak value of described induction amount is meant any peak value on the X-axis and any peak value on the Y-axis, and both need are simultaneously greater than institute
State default threshold peak, represent that just described object touches described Trackpad.
13. method as claimed in claim 10 is characterized in that: the step that the described object of described affirmation does not have to move on described Trackpad comprises the following steps:
Detect the induction amount of described Trackpad; And
When the peak value of described induction amount greater than default threshold peak, and the moving in a preset threshold value of described peak value thinks that then described object does not move on described Trackpad.
14. method as claimed in claim 10 is characterized in that: described affirmation object for the first time and the step of leaving described Trackpad for the second time comprise the following steps:
Detect the induction amount of described Trackpad; And
The steady state value if described induction amount is suddenlyd change back again represents that then described object leaves described Trackpad.
15. method as claimed in claim 13 is characterized in that: described steady state value is meant that the value of induction amount is zero.
16. method as claimed in claim 10 is characterized in that: the described first gesture signal packet is drawn together button and is being pressed signal.
17. method as claimed in claim 10 is characterized in that: the described second gesture signal packet is drawn together button and is decontroled signal.
18. method as claimed in claim 10 is characterized in that: described the 3rd hand signal comprises that button pressing the composition signal of decontroling with button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910182175A CN101655756A (en) | 2009-07-15 | 2009-07-15 | Gesture detection method of touch pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910182175A CN101655756A (en) | 2009-07-15 | 2009-07-15 | Gesture detection method of touch pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101655756A true CN101655756A (en) | 2010-02-24 |
Family
ID=41710060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910182175A Pending CN101655756A (en) | 2009-07-15 | 2009-07-15 | Gesture detection method of touch pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101655756A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106391A (en) * | 2011-11-14 | 2013-05-15 | 株式会社东芝 | Gesture recognition apparatus and method thereof |
-
2009
- 2009-07-15 CN CN200910182175A patent/CN101655756A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106391A (en) * | 2011-11-14 | 2013-05-15 | 株式会社东芝 | Gesture recognition apparatus and method thereof |
| US9207757B2 (en) | 2011-11-14 | 2015-12-08 | Kabushiki Kaisha Toshiba | Gesture recognition apparatus, method thereof and program therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7701447B2 (en) | Method for multiple objects detection on a capacitive touchpad | |
| CN100419657C (en) | Multi-object detection method for capacitance type touch panel | |
| CN101464750B (en) | Method for gesture recognition through detecting induction area of touch control panel | |
| US8102376B2 (en) | Method for object detection on a capacitive touchpad | |
| CN100435078C (en) | Object detection method for capacitance type touch panel | |
| CN103164067B (en) | Judge the method and the electronic equipment that touch input | |
| CN103246382B (en) | Control method and electronic equipment | |
| CN102023735B (en) | A kind of touch input device, electronic equipment and mobile phone | |
| CN101727242B (en) | Method for sensing multiclutch on touch panel | |
| JP4073449B2 (en) | Touch gesture detection method | |
| TWI389014B (en) | Touchpad detection method | |
| TWI269998B (en) | Method for detecting hand gesture on touch pad | |
| CN101393496B (en) | Touch control point detecting method of touch control plate | |
| CN101458585B (en) | Touch control panel detecting method | |
| CN100454223C (en) | Gesture detecting method for touch control panel | |
| CN104750292A (en) | Touch device and touch mode switching method thereof | |
| CN100416481C (en) | Method for checking object of touch control panel | |
| CN101655756A (en) | Gesture detection method of touch pad | |
| US9244579B2 (en) | Touch display apparatus and touch mode switching method thereof | |
| JP4732489B2 (en) | Capacitive touch panel article detection method | |
| CN101673156A (en) | Gesture detection method of touch pad | |
| JP4695451B2 (en) | Capacitive touch panel article detection method | |
| CN100388175C (en) | Gesture detecting method for touch control panel | |
| CN100489751C (en) | Gesture detecting method for touch control panel | |
| JP4098314B2 (en) | Capacitive touch panel multiple article detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100224 |