CN103164081B - Contactor control device and touch point detection method thereof - Google Patents
Contactor control device and touch point detection method thereof Download PDFInfo
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- CN103164081B CN103164081B CN201310057396.9A CN201310057396A CN103164081B CN 103164081 B CN103164081 B CN 103164081B CN 201310057396 A CN201310057396 A CN 201310057396A CN 103164081 B CN103164081 B CN 103164081B
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- touch point
- touch
- contact panel
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Abstract
The present invention provides a kind of contactor control device and touch point detection method thereof, it is adaptable to contactor control device, and contactor control device comprises contact panel, and touch point detection method comprises: detecting acts on the N number of touch point on contact panel, and wherein N is the positive integer more than 2；Detecting order according to N number of touch point calculates the distance between each two touch point to obtain 1 distance of N；Find out two touch points of the ultimate range constituted in 1 distance of N；And judge that the touch point that is only connected with single touch point in these two touch points, as effective touch point, and judges that 1 touch point of other N is as invalid touch point.When palm is positioned on contact panel operations such as carrying out handwriting input by user, the present invention can distinguish effective Yu invalid touch point from multiple touch points, make user can continue to use general writing style and palm is positioned on contact panel operations such as carrying out handwriting input, it is to avoid cause operational inconvenience because palm is unsettled or do not feel like oneself.
Description
Technical field
The present invention is about a kind of contactor control device and touch point detection method thereof, and espespecially one can be from multiple touch points
In distinguish contactor control device and the touch point detection method thereof of effective Yu invalid touch point.
Background technology
Due to current consumption electronic products all with the direction for design light, thin, short, little, therefore, produce
Without the space such as conventional input devices such as mouse, keyboard on product.Along with the progress of touch technology, respectively
Plant in consumption electronic products, such as tablet PC, mobile phone, personal digital assistant (Personal
Digital Assistant, PDA), the product such as all-in-one (All in One) has been widely used contactor control device and made
For its input equipment.Although contactor control device is to input and operate device very easily, but, user is carried out
Sometimes palm is positioned on contact panel during handwriting input, now will produce on contact panel simultaneously
Multiple touch points so that contactor control device cannot operate exactly.Therefore, user when carrying out handwriting input,
Palm can only be made unsettled and do not touch contact panel, this is quite inconvenience for user.
Summary of the invention
For solving the problems referred to above, the present invention proposes a kind of contactor control device and touch point detection method thereof, by touching
Control point detecting function is to reach to distinguish the purpose of effective Yu invalid touch point from multiple touch points.
For reaching above-mentioned purpose, the present invention proposes a kind of contactor control device, comprises: contact panel and process are single
Unit, this processing unit is electrically connected at this contact panel, in order to detect act on this contact panel N number of
Touch point, calculates the distance between this touch point of each two to obtain N-1 according to the detecting order of this N number of touch point
Individual distance, finds out two these touch points of this ultimate range constituted in this N-1 distance, it is determined that these two
This touch point being only connected with single touch point in touch point is effective touch point, and judges other N-1
Touch point is invalid touch point, and N is the positive integer more than 2.
As optional technical scheme, this processing unit is with this contact panel of sequential scan of behavior master, to depend on
Sequence detects this N number of touch point.
As optional technical scheme, this processing unit is based on this contact panel of sequential scan of row, to depend on
Sequence detects this N number of touch point.
As optional technical scheme, this contactor control device additionally comprises display floater, is electrically connected at this process list
Unit, in order to show choice box, this choice box is turned on and off touch point detection merit in order to drive this processing unit
Can, when this touch point detection function is opened, this processing unit carry out judging this N number of touch point as effective or
The program of invalid touch point.
As optional technical scheme, this contactor control device additionally comprises the first sensing unit and hand-held touch-control group
Part, this first sensing unit is electrically connected at this processing unit, this hand-held touch control component comprise pliability by
Pressure side, on-off circuit and the second sensing unit, this pliability press-side couples this on-off circuit with selectivity
Make this on-off circuit conducting or open circuit, this second sensing unit is electrically connected at this on-off circuit, when this hands
Holding formula touch control component when pressing on this contact panel with this pliability press-side, this on-off circuit turns on,
Make this first sensing units sense to this second sensing unit, and then drive this processing unit open touch point
Detecting function, when this touch point detection function is opened, this processing unit carry out judging this N number of touch point as
The program of effective or invalid touch point.
The present invention more proposes a kind of touch point detection method, it is adaptable to contactor control device, this contactor control device comprises tactile
Control panel, this touch point detection method comprises: N number of touch point that detecting acts on this contact panel, N
For the positive integer more than 2；Detecting order according to this N number of touch point calculate between this touch point of each two away from
From to obtain N-1 distance；Find out two these touch points of the ultimate range constituted in this N-1 distance；
And judge this touch point of being only connected with single touch point in these two touch points as effective touch point, and
Judge that other N-1 touch point is as invalid touch point.
As optional technical scheme, this detecting step comprises: with this contact panel of sequential scan of behavior master,
Sequentially to detect this N number of touch point.
As optional technical scheme, this detecting step comprises: based on this contact panel of sequential scan of row,
Sequentially to detect this N number of touch point.
As optional technical scheme, this detecting step additionally comprises: display choice box, this choice box is in order to open
Open or close touch point detection function；And when this touch point detection function is opened, carry out judging that this is N number of
Touch point is the program of effective or invalid touch point.
As optional technical scheme, this contactor control device additionally comprises the first sensing unit and hand-held touch-control group
Part, this hand-held touch control component comprises pliability press-side, on-off circuit and the second sensing unit, and this can
Flexible press-side couples this on-off circuit optionally to make the conducting of this on-off circuit or open circuit, this second sensing
Unit is electrically connected at this on-off circuit, and this touch point detection method additionally comprises:
Operate this hand-held touch control component to press on this contact panel with this pliability press-side, to lead
This on-off circuit logical so that this first sensing units sense is to this second sensing unit, and then opens touch point
Detecting function；And
When this touch point detection function is opened, carry out judging that this N number of touch point is as effective or invalid touch-control
The program of point.
Compared with prior art, when user palm is positioned on contact panel carry out handwriting input or other
During the operation of application function, the present invention can distinguish effective Yu invalid touch point from multiple touch points,
Make user can continue to use general writing style palm is positioned on contact panel carry out handwriting input or its
The operation of its application function, avoids causing operational inconvenience because palm is unsettled or doing not feel like oneself simultaneously.
Can obtain further by the following detailed description and accompanying drawings about the advantages and spirit of the present invention
Solve.
Accompanying drawing explanation
Fig. 1 is the schematic diagram acting on contactor control device according to one embodiment of the invention palm and pointer.
Fig. 2 is the functional block diagram of the contactor control device in Fig. 1.
Fig. 3 is the schematic diagram acting on the multiple touch points on the contact panel in Fig. 1.
Fig. 4 is the flow chart of the touch point detection method according to one embodiment of the invention.
Fig. 5 is the schematic diagram of the display floater display choice box of the contactor control device in Fig. 1.
Fig. 6 is the schematic diagram that the display floater of the contactor control device in Fig. 1 shows another choice box.
Fig. 7 is the functional block diagram of the contactor control device according to another embodiment of the present invention.
Detailed description of the invention
For making the purpose of the present invention, structure, feature and function thereof are had further understanding, hereby coordinate reality
Execute example and describe in detail as follows.
Refer to Fig. 1 to Fig. 4, Fig. 1 for acting on touch-control dress according to one embodiment of the invention palm and pointer
Putting the schematic diagram of 1, wherein palm 30 and pointer 32 act on contact panel 10；Fig. 2 is in Fig. 1
The functional block diagram of contactor control device 1；Fig. 3 is to act on the multiple touch-controls on the contact panel 10 in Fig. 1
The schematic diagram of point；Fig. 4 is the flow chart of the touch point detection method according to one embodiment of the invention.In Fig. 4
The contactor control device 1 that may utilize in Fig. 1 with Fig. 2 of touch point detection method realize.
As shown in Figures 1 and 2, contactor control device 1 comprises contact panel 10, processing unit 12 and display surface
Plate 14, wherein processing unit 12 is electrically connected at contact panel 10 and display floater 14.It is said that in general, touch
Control panel 10 is arranged on display floater 14, and therefore contact panel 10 and display floater 14 are shown in Fig. 1
In same place.In reality apply in, contactor control device 1 can be any have data process and touch controllable function
Electronic installation, such as mobile phone, personal digital assistant, tablet PC, Trackpad, Touch Screen etc.；
Contact panel 10 can be electric resistance touch-control panel, capacitance type touch-control panel or other contact panel；Processing unit
12 can be processor or the controller with data processing function；Display floater 14 can be liquid crystal display or its
Its display.It is said that in general, software and hardware assembly necessary when also can be provided with running in contactor control device 1, as interior
Deposit, power supply unit, operating system, application program, communication module etc., depending on actual application.Need
Bright, if contactor control device 1 is the Trackpad without display function, then contactor control device 1 can not comprise display surface
Plate 14.
As shown in Figures 1 and 3, when user, palm 30 is positioned on contact panel 10 with pointer 32
When carrying out the operation of handwriting input or other application function, processing unit 12 is produced according to contact panel 10
Signal can detect the N number of touch point (step S100 in Fig. 4) acting on contact panel 10, its
Middle N is the positive integer more than 2.Processing unit 12 is detecting the N number of touch-control acting on contact panel
After Dian, i.e. can calculate the distance between each two touch point to obtain N-1 according to the detecting order of this N number of touch point
Individual distance (step S102 in Fig. 4).Then, during processing unit 12 can find out composition this N-1 distance
Two touch points (step S104 in Fig. 4) of ultimate range.Finally, processing unit 12 i.e. can judge tool
Having the touch point being only connected in two touch points of ultimate range with single touch point is effective touch point, and sentences
Other N-1 touch point fixed is invalid touch point (step S106 in Fig. 4).
As a example by the embodiment depicted in Fig. 3, processing unit 12 detects to act on to be had on contact panel 10
Nine touch point P0-P8 (that is, N=9), wherein touch point P0 is that pointer 32 touches contact panel 10
Produced, and touch point P1-P8 is touched contact panel 10 by palm 30 and produced.It should be noted that, touch
Control point P0 also can be produced by the finger of user or user other object hand-held touching contact panel 10,
Depending on actual application.In this embodiment, processing unit 12 can be with the order (column-major of behavior master
Order), based on the order (row-major order), the order expanded outwardly with concentric circular that arrange or sweep with other
The mode of retouching scans contact panel 10, sequentially to detect nine touch point P0-P8.
As shown in Figure 3, it is assumed that processing unit 12 detects nine touch points acted on contact panel 10
The detecting order of P0-P8 is sequentially P0, P1 ..., P8, then processing unit 12 can be according to these nine touch points
The detecting order of P0-P8 calculates the distance between each two touch point to obtain eight distances D1-D8.Citing and
Speech, when processing unit 12 first detects touch point P0 and P1, processing unit 12 i.e. can first calculate touch point
Distance D1 between P0 and P1, then, when processing unit 12 detects touch point P2 again, processing unit
12 i.e. can calculate distance D2 between touch point P1 and P2, by that analogy.
Then, processing unit 12 can find out two touch points of the ultimate range constituted in these eight distances D1-D8.
As it is shown on figure 3, owing to touch point P0 is relatively distant from other touch point P1-P8, therefore eight distances D1-D8
In ultimate range be distance D1 between two touch point P0 and P1.
Finally, processing unit 12 only i.e. can judge to have in two touch point P0 Yu P1 of ultimate range D1
The touch point being connected with single touch point is effective touch point, and judges that other touch point is as invalid touch-control
Point.As it is shown on figure 3, owing to touch point P0 is only connected with single touch point P1, and touch point P1 simultaneously with
Touch point P0, P2 connect, i.e. touch point P1 is not to be connected with single touch point, therefore processing unit 12 meeting
Judge that touch point P0, as effective touch point, and judges that other eight touch point P1-P8 are as invalid touch point.
Thereby, touch point P0 only can be made a response by processing unit 12, and ignores other eight touch point P1-P8.
It should be noted that, when touch point P0 not yet leaves contact panel 10, processing unit 12 can be according to touch point
The motion track of P0 is persistently made a response, and after touch point P0 leaves contact panel 10, then touches for new
Control point re-executes above-mentioned steps.
In other words, carry out hand-written defeated when palm 30 is positioned on contact panel 10 by user with pointer 32
Entering or during the operation of other application function, pointer 32 touches touch point P0 phase produced by contact panel 10
Touching touch point P1-P8 produced by contact panel 10 to away from palm 30, therefore processing unit 12 can root
Effective Yu invalid touching is distinguished rapidly according to the distance between each two touch point and the annexation between touch point
Control point.
Refer to the display floater 14 that Fig. 5 and Fig. 6, Fig. 5 are contactor control device 1 in Fig. 1 and show choice box
The schematic diagram of 140, Fig. 6 is that the display floater 14 of the contactor control device 1 in Fig. 1 shows another choice box 140'
Schematic diagram.As shown in figs. 5 and 6, display floater 14 can show choice box 140 or 140', with for
User operation is turned on and off touch point detection function, the wherein choosing shown in Fig. 5 with driving processing unit 12
Select frame 140 to may be disposed in functional menu, and the choice box 140' shown in Fig. 6 can be with the form of rapid switch
It is arranged at the optional position in display picture, and choice box 140' can be moved the position wanted to it by user
Put, but be not limited, depending on actual application.When touch point detection function is opened, processing unit 12
I.e. can carry out judging that multiple touch point is as having when detecting the multiple touch point acted on contact panel 10
Effect or the program of invalid touch point.
Refer to the functional block diagram that Fig. 7, Fig. 7 are the contactor control device 1' according to another embodiment of the present invention.Touch
Control device 1' is in place of the main difference of above-mentioned contactor control device 1, and contactor control device 1' additionally comprises the first sensing
Unit 16 and hand-held touch control component 18, wherein the first sensing unit 16 is electrically connected at processing unit 12,
And hand-held touch control component 18 comprises pliability press-side 180, on-off circuit 182 and the second sensing unit
184.Pliability press-side 180 couples on-off circuit 182 optionally to make on-off circuit 182 turn on or open
Road, and the second sensing unit 184 is electrically connected at on-off circuit 182.In this embodiment, hand-held touch-control
Assembly 18 can realize with the form of pointer, and pliability press-side 180 can be by rubber or other soft material
Matter is made, can produce elastic deformation when pressurized.Distinguish additionally, the first sensing unit 16 can be less radio-frequency
Knowledge system (Radio Frequency Identification, RFID) induction apparatus, close range wireless communication (Near
Field Communication, NFC) induction apparatus or other induction apparatus, and the second sensing unit 184 can be right
Answer the RFID label of the first sensing unit 16, NFC label or other label.
When hand-held touch control component 18 presses on contact panel 10 with pliability press-side 180,
Pliability press-side 180 can produce elastic deformation because of pressurized and on-off circuit 182 is turned on.Now,
One sensing unit 16 i.e. can sense the second sensing unit 184, and then drives processing unit 12 to open above-mentioned
Touch point detection function.When touch point detection function is opened, processing unit 12 i.e. can act on detecting
During multiple touch point on contact panel 10, carry out judging that multiple touch point is as effective or invalid touch point
Program.On the other hand, the pliability press-side 180 at hand-held touch control component 18 leaves contact panel 10
After, pliability press-side 180 i.e. reinstatement can make on-off circuit 182 formation open a way, now, due to
First sensing unit 16 cannot sense the second sensing unit 184, and processing unit 12 i.e. can close above-mentioned touching
Control point detecting function.
In other words, the present invention may utilize software form (that is, above-mentioned choice box 140 or 140') and/or
Example, in hardware (that is, above-mentioned hand-held touch control component 18 arrange in pairs or groups the first sensing unit 16) is grasped for user
Make to drive processing unit 12 to be turned on and off touch point detection function.
Additionally, the control logic of the touch point detection method shown in Fig. 4 can realize with software design.Certainly,
These control the various piece in logics or function all can pass through the combination of software, hardware or software and hardware and realizes.
The data in computer-readable storage media can be stored in additionally, these control logic and embody, its
The data of the representative instruction stored by Computer readable memory media can be performed to produce by contactor control device 1
Control command, so control contactor control device 1 perform correspondence function.
In sum, handwriting input is carried out or other should be diligent when palm is positioned on contact panel by user
Can operation time, the present invention can distinguish effective Yu invalid touch point from multiple touch points so that makes
User can continue to use general writing style palm is positioned on contact panel carry out handwriting input or other application
The operation of function, avoids causing operational inconvenience because palm is unsettled or doing not feel like oneself simultaneously.
The present invention is been described by by above-mentioned related embodiment, but above-described embodiment is only and implements the present invention's
Example.It must be noted that, the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, not
The change made in departing from the spirit and scope of the present invention and retouching, all belong to the scope of patent protection of the present invention.
Claims (10)
1. a contactor control device, it is characterised in that comprise:
Contact panel；And
Processing unit, is electrically connected at this contact panel, in order to detect act on this contact panel N number of
Touch point, calculates the distance between each two touch point to obtain N-1 according to the detecting order of this N number of touch point
Individual distance, finds out two touch points of the ultimate range constituted in this N-1 distance, it is determined that these two touch-controls
The touch point being only connected with single touch point in point is effective touch point, and judges other N-1 touch point
For invalid touch point, N is the positive integer more than 2.
2. contactor control device as claimed in claim 1, it is characterised in that: this processing unit is with behavior master's
This contact panel of sequential scan, sequentially to detect this N number of touch point.
3. contactor control device as claimed in claim 1, it is characterised in that: this processing unit is based on row
This contact panel of sequential scan, sequentially to detect this N number of touch point.
4. contactor control device as claimed in claim 1, it is characterised in that: this contactor control device additionally comprises display
Panel, is electrically connected at this processing unit, and in order to show choice box, this choice box is in order to drive this process list
Unit is turned on and off touch point detection function, and when this touch point detection function is opened, this processing unit is carried out
Judge the operation as effective or invalid touch point of this N number of touch point.
5. contactor control device as claimed in claim 1, it is characterised in that: this contactor control device additionally comprises first
Sensing unit and hand-held touch control component, this first sensing unit is electrically connected at this processing unit, this hands
The formula touch control component of holding comprises pliability press-side, on-off circuit and the second sensing unit, and this pliability presses
End couple this on-off circuit with optionally make this on-off circuit conducting or open circuit, this second sensing unit is electrical
It is connected to this on-off circuit, when this hand-held touch control component is enterprising in this contact panel with this pliability press-side
During row pressing, this on-off circuit turns on so that this first sensing units sense, to this second sensing unit, is entered
And drive this processing unit to open touch point detection function, and when this touch point detection function is opened, this process
Unit carries out the operation judging this N number of touch point as effective or invalid touch point.
6. a touch point detection method, it is adaptable to contactor control device, this contactor control device comprises contact panel,
It is characterized in that this touch point detection method comprises:
Detecting acts on the N number of touch point on this contact panel, and N is the positive integer more than 2；
Detecting order according to this N number of touch point calculates the distance between each two touch point to obtain N-1
Distance；
Find out two touch points of the ultimate range constituted in this N-1 distance；And
Judge that the touch point that is only connected with single touch point in these two touch points, as effective touch point, and is sentenced
Other N-1 touch point fixed is invalid touch point.
7. touch point detection method as claimed in claim 6, it is characterised in that this detecting step comprises:
With this contact panel of sequential scan of behavior master, sequentially to detect this N number of touch point.
8. touch point detection method as claimed in claim 6, it is characterised in that this detecting step comprises:
Based on this contact panel of sequential scan of row, sequentially to detect this N number of touch point.
9. touch point detection method as claimed in claim 6, it is characterised in that this detecting step additionally comprises:
Display choice box, this choice box is in order to be turned on and off touch point detection function；And
When this touch point detection function is opened, carry out judging that this N number of touch point is as effective or invalid touch-control
The operation of point.
10. touch point detection method as claimed in claim 6, it is characterised in that: this contactor control device separately wraps
Containing the first sensing unit and hand-held touch control component, this hand-held touch control component comprise pliability press-side,
On-off circuit and the second sensing unit, this pliability press-side couples this on-off circuit optionally to make this
On-off circuit conducting or open circuit, this second sensing unit is electrically connected at this on-off circuit, this touch point detection
Method additionally comprises:
Operate this hand-held touch control component to press on this contact panel with this pliability press-side, to lead
This on-off circuit logical so that this first sensing units sense is to this second sensing unit, and then opens touch point
Detecting function；And
When this touch point detection function is opened, carry out judging that this N number of touch point is as effective or invalid touch-control
The operation of point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310057396.9A CN103164081B (en) | 2013-02-22 | 2013-02-22 | Contactor control device and touch point detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310057396.9A CN103164081B (en) | 2013-02-22 | 2013-02-22 | Contactor control device and touch point detection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103164081A CN103164081A (en) | 2013-06-19 |
| CN103164081B true CN103164081B (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310057396.9A Expired - Fee Related CN103164081B (en) | 2013-02-22 | 2013-02-22 | Contactor control device and touch point detection method thereof |
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| Country | Link |
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| CN (1) | CN103164081B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201504876A (en) * | 2013-07-23 | 2015-02-01 | Wintek Corp | Palm rejection method |
| KR101580570B1 (en) * | 2014-06-10 | 2015-12-28 | 주식회사 하이딥 | Control method and controller for touch sensor panel |
| TWI549037B (en) * | 2015-12-23 | 2016-09-11 | Imagination Broadway | Touch detection method to prevent false touch in touch system |
| CN114327109B (en) * | 2020-09-30 | 2023-12-19 | 明基智能科技（上海）有限公司 | Touch operation method and touch operation system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520835A (en) * | 2011-12-02 | 2012-06-27 | 展讯通信（上海）有限公司 | Touch detection method and device thereof |
| CN102789332A (en) * | 2011-05-17 | 2012-11-21 | 义隆电子股份有限公司 | Method for identifying palm area on touch panel and updating method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI466004B (en) * | 2009-04-17 | 2014-12-21 | Egalax Empia Technology Inc | Method and device for resistive multi-point touch |
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2013
- 2013-02-22 CN CN201310057396.9A patent/CN103164081B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789332A (en) * | 2011-05-17 | 2012-11-21 | 义隆电子股份有限公司 | Method for identifying palm area on touch panel and updating method thereof |
| CN102520835A (en) * | 2011-12-02 | 2012-06-27 | 展讯通信（上海）有限公司 | Touch detection method and device thereof |
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