CN104699545A - Method and device for determining wrong proximity event - Google Patents

Abstract

The invention relates to a method and a device for determining wrong proximity events. The method comprise: obtaining one or more touch control signal value corresponding to a segment range; calculating the sum of difference values of each touch control signal value and a reference value; and when the sum is smaller than or equal to zero, determining the segment range is corresponding to a wrong proximity event. The method and a device for determining wrong proximity events can reduce and even prevent wrong proximity events from being reported to a main machine, and prevents generating an instruction a user does not want.

Description

Misjudgment is closely taken over a job the method and apparatus of part

Technical field

The invention relates to the part of closely taking over a job on detecting touch control screen, particularly closely to take over a job part due to ghost point or water stain caused mistake about judging.

Background technology

During what detecting occurred on touch control screen closely take over a job part, may detect because ghost point or water stain produced mistake are closely taken over a job part.The part of closely taking over a job that these mistakes produce may cause user to assign the instruction of mistake, and causes irremediable result.Therefore, a kind of can misjudgment closely taking over a job the method and apparatus of part, to avoid causing above-mentioned consequence is needed badly.

The defect that the method and apparatus of part exists because above-mentioned existing misjudgment is closely taken over a job, the present inventor is based on being engaged in the practical experience and professional knowledge that this type of product design manufacture enriches for many years, and coordinate the utilization of scientific principle, actively in addition research and innovation, closely to take over a job the method and apparatus of part to founding a kind of new misjudgment, general existing misjudgment can be improved closely to take over a job the method and apparatus of part, make it have more practicality.Through constantly research, design, and through repeatedly studying sample and after improving, finally creating the present invention had practical value.

Summary of the invention

Fundamental purpose of the present invention is, overcome existing misjudgment closely take over a job part method exist defect, and a kind of method that part is closely taken over a job in new misjudgment is provided, technical matters to be solved makes it obtain the corresponding one or more touching signals value of line segment scope; Calculate the summation of the difference of each this touching signals value and reference value; And when this summation is less than or equal to zero, thinks and the part of closely taking over a job of the mutually required mistake of this line segment scope be very suitable for practicality.

Another object of the present invention is to, provide the device that part is closely taken over a job in a kind of novel misjudgment, technical matters to be solved makes it for performing above-mentioned step, thus be more suitable for practicality.

The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of misjudgment proposed according to the present invention is closely taken over a job the method for part, comprises following steps: obtain the corresponding one or more touching signals value of line segment scope; Calculate the summation of the difference of each this touching signals value and reference value; And when this summation is less than or equal to zero, think the part of closely taking over a job of the mutually required mistake of this line segment scope.

The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.

Aforesaid misjudgment is closely taken over a job the method for part, wherein more comprises following steps: according to the one dimension sensitive information of two differences including touching signals value, calculate this line segment scope.

Aforesaid misjudgment is closely taken over a job the method for part, wherein more comprises following steps: according to the one dimension sensitive information of difference including touching signals value, calculate the one dimension sensitive information that this includes two differences of touching signals value.

Aforesaid misjudgment is closely taken over a job the method for part, wherein more comprises following steps: according to the one dimension sensitive information including touching signals value, obtains the one dimension sensitive information that this includes the difference of touching signals value.

Aforesaid misjudgment is closely taken over a job the method for part, wherein more comprises following steps: when this summation is greater than zero, calculates this line segment scope this part of closely taking over a job corresponding.

The object of the invention to solve the technical problems realizes in addition more by the following technical solutions.A kind of misjudgment proposed according to the present invention is closely taken over a job the device of part, for carrying out the following step: obtain the corresponding one or more touching signals value of line segment scope; Calculate the summation of the difference of each this touching signals value and reference value; And when this summation is less than or equal to zero, think the part of closely taking over a job of the mutually required mistake of this line segment scope.

The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.

Aforesaid device, wherein more for: according to the one dimension sensitive information of two differences including touching signals value, calculate this line segment scope.

Aforesaid device, wherein more for: according to the one dimension sensitive information of difference including touching signals value, calculate the one dimension sensitive information that this includes two differences of touching signals value.

Aforesaid device, wherein more for: according to the one dimension sensitive information including touching signals value, obtain the one dimension sensitive information that this includes the difference of touching signals value.

Aforesaid device, wherein more for: when this summation is greater than zero, calculate this line segment scope this part of closely taking over a job corresponding.

The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, misjudgment provided by the present invention is closely taken over a job the method and apparatus of part, can reduce and even avoid the part of closely taking over a job of mistake to be reported to main frame, to such an extent as to produce be not the instruction that user wants.

Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.

Accompanying drawing explanation

Fig. 1 is signal value according to the embodiment of the present invention, difference, schematic diagram with two difference.

Fig. 2 for according to the signal value of the embodiment of the present invention and reference value enclose the schematic diagram of area.

Fig. 3 is the signal value presented that slips over conducting liquid according to the finger of the embodiment of the present invention, two difference, schematic diagram with line segment.

Fig. 4 is for causing the schematic diagram of signal value and the line segment presented during ghost point according to many fingers of the embodiment of the present invention.

The schematic diagram of signal value of Fig. 5 A for presenting according to nib and the large-scale conductive body of the embodiment of the present invention.

The schematic diagram of signal value of Fig. 5 B for presenting according to nib and the large-scale conductive body of the embodiment of the present invention.

The schematic diagram of signal value of Fig. 5 C for presenting according to nib and the large-scale conductive body of the embodiment of the present invention.

Fig. 6 is the schematic diagram being judged palm scope by line segment group according to the embodiment of the present invention.

Fig. 7 is mistaken for the schematic diagram of palm according to the line segment group of many fingers that avoids of the embodiment of the present invention.

Fig. 8 is the schematic flow sheet of method of part of closely taking over a job according to the misjudgment of the embodiment of the present invention.

Fig. 9 is the part block diagram of the touch-control system according to the embodiment of the present invention.

According to each embodiment of the present invention, Figure 10 A to Figure 10 D judges whether line segment corresponds to the schematic flow sheet of the nib of pointer.

According to each embodiment of the present invention, Figure 11 A to Figure 11 D judges whether line segment corresponds to the schematic flow sheet of the shaping claviform of suspension.

Figure 12 is the schematic flow sheet of the line segment group corresponding to the eliminating palm of the embodiment of the present invention.

Figure 13 is the schematic flow sheet of the determination methods of palm line segment group according to the embodiment of the present invention.

[main element symbol description]

14: signal value

15: difference

16: two difference

810-880: step

900: touch-control system

910: closely connect object

920: contact panel

921: the first electrodes

922: the second electrodes

930: touch-control treating apparatus

940: main frame

1010-1050: step

1110-1150: step

1210-1280: step

1310-1340: step

Embodiment

It is as follows that the present invention will describe some embodiments in detail.But except disclosed embodiment, scope of the present invention by the restriction of described embodiment, is not be as the criterion with claim.And in order to provide clearer description and make the ordinary person of this skill can understand summary of the invention of the present invention, in diagram, each several part is not drawn according to its relative size, the ratio of some size or other scale dependents may be seemed by highlighting exaggeration, and incoherent detail section is not drawn completely, in the hope of succinctly illustrated.

For convenience's sake, provide simple nominal definition as follows, but scope of the present invention is including but not limited to following definition.

Contact panel/screen: form sensed layer at substrate, its control device can utilize sensed layer to detect the position of at least one shaping claviform coming close to or in contact with substrate.Sensed layer can be single or multiple lift structure.

Closely connect: the general designation come close to or in contact with.

External conductive object: the part that can be human body, as finger or palm.Can be the object connected with human body, such as passive type pointer.Can being active pointer, making contact panel be detected position by sending signal.Also can be the test conductive body of ground connection, as bronze cylinders.Also may be stained with the stagnant water on contact panel surface or conducting liquid.

Closely connect object: the external conductive object coming close to or in contact with substrate.

Closely to take over a job part: when external conductive object comes close to or in contact with substrate, and by the event of touch panel detection to this external conductive object.

Sensed layer: comprise many (m bar) drive electrodes being parallel to the first axle and many (n bar) sensing electrodes being parallel to the second axle, drive electrode and sensing electrode expose mutually, form m and are multiplied by n sensing points.First axle can be orthogonal with the second axle, and m can equal n.

Drive electrode (the first bus): comprise many (m bars) being parallel to the first axle in order to send the electrode driving ripple, can be made up of transparent or opaque material, such as tin indium oxide (ITO) or carbon nanotube, can be single layer structure, also can be double-decker.

Sensing electrode (the second bus): in order to detect the electrode of capacitance signal, can be made up of transparent or opaque material, such as tin indium oxide or carbon nanotube can be single layer structures, also can be double-deckers.

One dimension sensitive information: the multiple sensitive informations corresponding to the first axle or the second axle.The set of single bar sensing electrode corresponding to the signal value of m sensing points of m bar drive electrode can be referred to, also can refer to the set of single bar drive electrode corresponding to the signal value of n sensing points of n bar sensing electrode.In other words, one dimension sensitive information can comprise the signal value of m sensing points, also can comprise the signal value of n sensing points.One dimension sensitive information also can comprise single difference of m/n sensing points and two difference.

Two dimension sensitive informations: the sensitive information that multiple one dimension sensitive information combines, or be called image.

Reference value (baseline or stray): corresponding to the signal value of a certain frequency of operation.

Signal value: can be the signal directly detected by sensing electrode, also can be the signal value reduced by single difference and reference value, though both have difference, use can be replaced mutually in certain embodiments.

Single difference (or being called difference): the difference of the signal value of adjacent sensing points.

Two difference: the difference of adjacent difference.

Line segment: the whole or continuous part of one dimension sensitive information.

Line segment group: the multiple line segments corresponding to one adjacent dimension sensitive information is corresponding in the adjacent sensing points that axially has at least.

Ghost point: do not want the capacitive sensing occurred to put accordingly or region.

The action of contact panel/screen can be divided into three programs, and one is full frame driving detection process, by providing drive singal to all drive electrodes simultaneously, can judge whether to exist and at least onely closely connects object.It two is make an uproar news detection process in outside, provides drive singal to all drive electrodes, can judge that whether extraneous electromagnetic interference (EMI) is serious by stopping.Its three is report point program, by sequentially providing drive singal to each drive electrode, and reports touch point and/or relevant information by the signal value that each sensing electrode is detected or read to other softwares or hardware module.

In an embodiment, the execution sequence of these three kinds of programs above, first can perform full frame driving detection process, determines on contact panel/screen without any external conductive object.Then perform outside again to make an uproar news detection process, determine that extraneous electromagnetic interference (EMI) is very serious, or set the frequency of operation of new drive singal.Finally, then perform report point a program.

After report point program in an embodiment, above-mentioned circulation can be repeated.

In another embodiment, after also can repeatedly reporting a program, perform once outside and to make an uproar news detection process, then repeatedly make an uproar news detection process in report point program and once outside again.After repeatedly news detection process is made an uproar in outside, then perform full frame driving detection process.

Those having ordinary skill in the art will appreciate that, the execution of above three kinds of programs can have unlimited multiple combination, and the present invention is not limited to a certain combination.The order of its executive routine can be determine in advance well, also can change the order of its executive routine according to run into situation, or offhand decision to perform a certain program temporarily.

In general, the object of report point program is for detecting the style of writing and/or finger tip that are closely connected to contact panel/screen, and gets rid of palm, water (aggregate surrogates of conducting liquid, later all using water as designate) or unnecessary capacitive sensing.Report point program more can comprise and be subdivided into following several steps: scan or detect all sensing points; For the electrical specification of sensing electrode and substrate is bending corrects; Find out each line segment corresponding to above-mentioned object; Check each line segment to get rid of water and terrible point; By qualified line segment composition line segment group to exclude palm; Style of writing and/or finger tip are positioned; Tracing and positioning or trace; By location report point.Although report point program can comprise each above-mentioned step, not each step is all necessary, and certain some step can skip over.

In general, the processing module of contact panel/screen can obtain the one dimension sensitive information of m bar measured by each sensing electrode, and every bar one dimension sensitive information comprises the information of the sensing points of n each drive electrode corresponding.Processing module directly may obtain signal value, also directly may obtain difference.When obtaining signal value, can calculated difference.When obtaining difference, also signal value can be pushed back via reference value.And no matter be the one dimension sensitive information obtaining signal value or difference, two difference and then can be calculated.

Can consult shown in Fig. 1, uppermost curve 14 is signal value.Middle curve 15 is difference.And nethermost curve 16 is two differences.

In the middle of optional step, due to the electrical specification of sensing electrode, make the signal value deviation to some extent measured by each sensing points, can correct signal value for this deviation.In addition, because substrate may bend because closely taking over a job part, substrate itself also likely can have deformation, and the impact that also can cause for substrate deformation corrects.

The step utilizing one dimension sensitive information to find out line segment can comprise utilization two difference, difference and/or signal value to find out the scope of line segment.After the two difference of acquisition, multiple method can be had to capture line segment.

In an embodiment, the high point higher than two difference threshold value can first be found out.Then find a relative low points forward, be called the first point (front point), then find a relative low points backward, be called second point (rear point), then the scope of this line segment is then from first to second point.For example have one dimension sensitive information of n sensing points, the 20th time, find relatively high point, the relative low points looked for forward is the 15th point, and the relative low points backward looked for is the 25th point.Then the scope of this line segment be the 15th o'clock to the 25th point, the length of line segment is 11.

But in the middle of some example, within the scope of or backward one, can not find relative low points forward.When this happens, then a certain segment distance defined forward or is backward the scope of line segment.For example, above-mentioned distance is set as 5.So when relatively high point (the 20th point) can not find relative low points backward, then defining at the 25th is second point.The scope of this line segment is from the 15th o'clock to the 25th point, and the length of line segment is 11.Otherwise, as the same.

In the middle of the above embodiments, be applicable to there is the line segment higher than two difference threshold value.But when having some parts of closely taking over a job to occur, single the two differences higher than two difference threshold value can't be produced, but two difference curve that generation one is comparatively flat.For example, when elongated touch-control nib or pencil point contact, single the two differences higher than two difference threshold value can not may be produced.Therefore, if need to detect this type closely connect object time, then can use following acquisition line segment method.

First can find out continuous two positive two differences, be added the General Logistics Department and compare with aforesaid pair of difference threshold value, if its summation is higher than two difference threshold value, also can be called relatively high point.Then, similarly find a relative low points forward, be called the first point (front point), then find a relative low points backward, be called second point (rear point), then the scope of this line segment is then from first to second point.Similarly, when can not find relative low points within the scope of one or backward forward, then a certain segment distance defined forward or is backward the scope of line segment.

For example, suppose that two difference threshold value is 5, and the ordered series of numbers of one section of two difference is [0,0,0 ,-1 ,-3 ,-1,1,3,3,1 ,-1 ,-3 ,-1,0,0,0].In the middle of above-mentioned line segment, at first two positive two differences are 1,3, but its summation is less than two difference threshold value.Then, continuous two numerical value can be found to be the part of 3 backward.Because its summation is 6, be greater than above-mentioned two difference threshold values, so these two numerical value are considered as relatively high value.Then and second point is looked at first forward and backward again.

It should be noted that the second compares two just two summations of difference and the method for threshold value, also go for the single situation being greater than threshold value.

After finding out all line segments on contact panel/screen, then start to check line segment.May be used for getting rid of water and terrible point to the mode of line segment inspection.The combination of two difference, difference and/or signal value can be used here to judge.

After the two difference of utilization finds out line segment, the difference corresponding to this line segment and signal value can be learnt.Signal value and reference value can be utilized to calculate folded area therebetween.As shown in Figure 2, when area is positioned at below reference value, be referred to as negative value (negative), negative value normally caused by water or ghost point.Therefore, when the signal value area of this line segment is negative value, this line segment can be abandoned or ignore.

Refer to Fig. 3, in some cases, a sheet of water stain when contact panel has, and when finger tip streaks water stain, also can detect finger tip.According to above-mentioned searching line segment mode, three line segments can be cut out at two difference portion.LPC1, LPC2 from left to right respectively, with LPC3.

When these three line segments revert back signal value, can see the area corresponding to LPC1 is negative value, and the area corresponding to LPC3 is also negative value, the area only corresponding to LPC2 on the occasion of.Therefore, LPC1 and LPC3 will be abandoned or ignore in this stage, left LPC2.

Refer to Fig. 4, in some cases can there's something fishy point produce.For example in the middle of Touch Zone, there are four parts of closely taking over a job to occur simultaneously.Closely connect object because electric current can closely connect object data stream from one to another, such as, flow to another finger from a wherein finger of same palm, then recharge in the middle of sensing electrode, therefore can produce terrible point.These terrible points can be detected in two difference, wherein two closely take over a job part and two ghost point belong to same axis.

In the middle of the step of line segment acquisition, except corresponding to two LPC1 and LPC5 closely connecing object respectively, two line segments are also had to correspond to two ghost point LPC2 and LPC4 respectively.But, in the middle of two ghost points, a line segment LPC3 also may be detected.When detecting the signal value area of each line segment, find the signal value area of LPC1 and LPC5 be on the occasion of, and remaining LPC2, LPC3, be negative value with LPC4, therefore can abandon or ignore LPC2, LPC3, with LPC4, only leave LPC1 and LPC5.

Refer to Fig. 5 A, have the part of closely taking over a job not wanting to occur in some cases.That contact area is very little in the right of figure, and the Stylus contact that the change amount signal caused is also not too large.The left of figure is large-scale shaping claviform, for example the good copper post of electrical conductivity.When copper post also has a segment distance from contact panel/screen, start to have an impact to sensing electrode.These two parts of closely taking over a job all can be found when capturing line segment, but contact panel should not carry out report point to the part of closely taking over a job on the left side.

Therefore, when checking its signal value, the signal value slope at line segment edge can be checked, and the area of line segment, or with the area that length represents.The area 2 (Area 2) of nib is smaller, but the slope 2 (Slope 2) at its line segment edge is larger.And closely the take over a job area 1A (Area 1A) of part of left is comparatively large, but the slope 1A (Slope1A) at line segment edge is less.Therefore, slope and area can be utilized, screen out the left side and closely to take over a job the corresponding line segment of part, with the part of closely taking over a job that filtering is unnecessary.

Refer to Fig. 5 B, the large-scale shaping claviform of figure left is compared with Fig. 5 A, closer to contact panel.Similarly, contact panel also will filter the part of closely taking over a job on the left side.Therefore the check system of Fig. 5 A is applied mechanically, the signal value slope at inspection line segment edge, and the area of line segment, or with the area that length represents.The area 2 of nib is smaller, but the slope 2 at its line segment edge is larger.And closely the take over a job area 1B (Area 1B) of part of left is comparatively large, but the slope 1B at line segment edge (Slope 1B) is less.Although the area 1B of Fig. 5 B is larger than the area 1A of Fig. 5 A, the signal value caused is also comparatively large, and the slope 2 that slope 1B and the 1A at these two line segment edges causes than nib comes little.Therefore, slope and area can be utilized, screen out the left side and closely to take over a job the corresponding line segment of part, with the part of closely taking over a job that filtering is unnecessary.

Refer to Fig. 5 C, the large-scale shaping claviform of figure left compared with Fig. 5 B, touches contact panel with Fig. 5 A, and its signal value caused is by much larger than the signal value corresponding to nib.Therefore, the slope 1C (Slope 1C) at the line segment edge corresponding to it also can be greater than slope 1A and the 1B previously not contacting contact panel.And its area 1C (Area 1C) also can be greater than 1A and the 1B previously not contacting contact panel.Therefore, when utilize slope and area screen out Fig. 5 A and Fig. 5 B left side closely take over a job part time, the part of closely taking over a job on Fig. 5 C left side can't be deleted.

Detecting all line segments, and after abandoning or ignoring certain some line segment caused by water, terrible point or unnecessary part of closely taking over a job, next by each line-segment sets synthesis line segment group, to find out the barycenter of part of closely taking over a job, and the part of palm contacts to be weeded out.

Please refer to Fig. 6, after finding out all line segments, each line segment vertical component neighbor, line segment group can be combined into.Can see four line segment groups on Fig. 6, wherein the 4th group (Group4) is the part of closely taking over a job because palm causes.Second group (Group2) and the 3rd group (Group3) are then the parts of closely taking over a job that the finger contact do not operated contact panel causes, and also should calculate the part at palm.First group (Group1) is only had to be the part of closely taking over a job that the finger fingertip that really operates contact panel or nib cause.In other words, contact panel/screen should by second group, the 3rd group, and the 4th group classifies as palm portion, only carries out report point for the part of first group.

In an embodiment, when a certain line segment group has following its combination in any of one of them conditioned disjunction, namely think that this line segment group is for palm.Condition one, is that a certain signal value of a certain line segment in line segment group exceeds palm signal threshold value, then thinks that this line segment group is palm.Condition two is that the length of a certain line segment in line segment group is when being greater than hand length threshold value.Condition three is that the line segment quantity of line segment group is when being greater than palm line segment quantity threshold value.Hand length threshold value can equal palm line segment quantity threshold value, also can be not equal to.

As long as have after any one line segment group is considered to palm line segment group, then can carry out the step merging other line segments group.In the middle of Fig. 6, each line segment of the 4th group all can stretch out with vertical direction in the horizontal direction.After extension one horizontal range, if touch other line segments group, then the line segment group be touched also can be regarded as palm line segment group.For example, second group with the 3rd group all in the horizontal extension range of the 4th group, therefore these two line segment groups can be classified as palm line segment group.And first group is not obviously touched by the 4th group of extension, so first group can't be classified as palm line segment group further from the 4th group.

Part in the vertical direction, can by the line segment group at edge upwards with to downward-extension, the line segment group length extended is identical with the length of edge line stage group or proportional.For example, first extension line segment length can be eighty per cant of edge line stage group, and second extension line segment length can be eighty per cant of first extension line segment length, by that analogy, until the number extending line segment reaches the upper limit, or the length of extension line segment is lower than till lower limit.In the middle of Fig. 6, the vertical extension line segment of any 4th group does not touch other line segments group.

It should be noted that above extension can be only limited to once, that is by original line segment group the 4th group extensions being considered to palm, second group and the 3rd group are then without the need to extending again.But the present invention also can make the line segment group be extended again extend, but its horizontal range may be come short than the horizontal range of former extension, and its vertically extending number or its ratio also may be come few than the number of former extension or ratio.In the middle of another example, then the condition extended also can be set as identical with the condition of former extension.

In the middle of another embodiment, original palm line segment group frame can be gone out palm rectangle (palm rectangle), then according to above-mentioned extension spirit, frame goes out to expand palm rectangle (enlarged palm rectangle).If other line segment group has overlapping part with this expansion palm rectangle, be then regarded as palm line segment group.

Although the method expanding palm rectangle is simpler than a kind of front method in computing, easily firmly more multiaspect is long-pending for frame.If there is the part of closely taking over a job wanting to report point in the scope expanding palm rectangle, the line segment group corresponding to it can be left in the basket and disregard.Therefore, under the condition of calculation resources license, front a kind of Measures compare extended out is good.

When actual writing, because palm and finger tip constantly move, therefore contacted area can change rapidly.Sometimes, the contact site branch of palm splits into many independently comparatively zonules, and has no idea to be regarded as palm.Therefore, when certain once detect scanning judged that palm line segment group occurs time, a palm flag and/or timestamp can be set.

During palm flag is arranged, three above-mentioned conditions can be relaxed.For example, palm signal threshold value can reduce, and hand length threshold value can shorten, and palm line segment quantity threshold value also can shorten.Therefore, can there is larger probability that a certain line segment group is judged as palm line segment group.In an embodiment, above-mentioned region of relaxing may be limited to and expands palm rectangle or expand within palm shape.To only have and this expansion palm rectangle or shape have the line segment group overlapped onto, just can be suitable for three conditions of relaxing.When judging less than palm line segment group, can check that whether this timestamp is expired.When timestamp exceedes threshold value, this palm flag can be removed.

The present invention is not limited to the above-mentioned method arranging palm flag and/or timestamp, as long as when previously having judged to occur receiving and distributing the palm, just can relax the condition assert palm, can be suitable for the present invention.

Under certain certain situation, close in the extreme owing to closely connecing object, so need special method, line segment group is disassembled.Refer to Fig. 7, when four fingers are parallel, according to three above-mentioned conditions, the line segment of these four finger tips institute correspondence respectively can be combined into a line segment group.Quantity due to this line segment group is greater than palm line segment quantity threshold value, therefore can be considered to palm line segment group, is also just left in the basket and disregards.

In order to avoid this situation occurs, palm line segment group can be analyzed, when its total area (namely the length summation of individual line segment) is less than the normal palm area corresponding to it, namely carry out disassembling step.Or, when each line segment length of palm line segment group vertically presents suddenly big or suddenly small change, also can carry out disassembling step.When disassembling, can see that the signal value of the compartment of each finger tip is very little, so can be disassembled into four line segment groups, each line segment group corresponds to a finger tip.Also owing to disassembling into four line segment groups, original line segment group would not be considered to palm line segment group.Therefore, the part of closely taking over a job corresponding to four line segment groups all can by report point.

The line segment group of what another needed special processing is nib.In certain some embodiment, the line-spacing of such as sensing electrode is approximately 4mm, and time the diameter of nib is probably 1.5-2mm, corresponding line segment only has two kinds of possibilities.Larger probability can correspond to single bar short line segment, and less probability can correspond to the line segment group be made up of two adjacent line segments, and these two line segments are approximately isometric, but its length is also quite short.

Therefore, when detecting single line segment, nib can be determined whether.Previously mentioned, be judged as that the condition of nib can comprise the signal value slope judging line segment edge.When being judged as nib, the nib flag and/or timestamp that correspond to this nib can be set.

When supposing scanning detecting next time, when the feature class finding out line segment group is like nib, then judge whether above-mentioned nib flag is set up.If arranged, can judge that this line segment group is as nib, must report a little.Otherwise ignore this line segment group.During due to this nib adosculation control first panel/screen, only have the probability of less left and right to be occur in the mode of line segment group, as long as slightly move, almost certainly can the mode of single line segment occur, so not too the impression of user can be had influence on.

Timestamp can be utilized to compare, and the length after the trace of this nib disappears, namely can remove this nib flag.It should be noted that above-mentioned nib flag then needs the trace corresponding to a certain nib if allow multiple nib to contact contact panel/screen simultaneously.

Also to carry out positioning according to line segment group after report point program; Tracing and positioning or trace; And by the step of location report point.

Refer to shown in Fig. 8, it is the schematic flow sheet of method of part of closely taking over a job according to the misjudgment of the embodiment of the present invention.In the middle of Fig. 8, except having except causal step, the present invention does not limit the sequencing that each step is implemented, and does not limit the step inserting other between each step yet.In addition, the embodiment of Fig. 2 to Fig. 4 can also be consulted.

In an embodiment, the flow process of the method can start from step 810, receives the one dimension sensitive information including touching signals value, and according to including one dimension sensitive information of touching signals value, calculates the one dimension sensitive information including the difference of touching signals value.Then, step 820 is performed.

In another embodiment, the flow process of the method can start from step 820, according to the one dimension sensitive information of difference including touching signals value, calculates the one dimension sensitive information including two differences of touching signals value.Then, step 830 is performed.

In a more embodiment, the flow process of the method can start from step 830, according to the one dimension sensitive information of two differences including touching signals value, calculates line segment scope.Then, step 840 is performed.In the middle of aforesaid paragraph, describe and how calculated line segment scope according to two difference, therefore no longer superfluously to have chatted.

It should be noted that chip or the device of the embodiment of the method for implementation Fig. 8, at reception one dimension sensitive information, touching signals value can be received, also can receive the difference of touching signals value, two differences of touching signals value can also be received.The present invention does not limit and receives any value, as long as can calculate line segment scope according to one dimension sensitive information.

Step 840 is for obtaining the corresponding one or more touching signals value of line segment scope.As previously mentioned, the present invention does not limit and receives any value, but in the middle of step 840, must obtain the touching signals value corresponding to line segment scope.For example, when the chip of the embodiment of the method for implementation Fig. 8 or device receive be two difference time, first can revert back difference, restore back touching signals value.When the chip of the embodiment of the method for implementation Fig. 8 or device receive be difference time, touching signals value can be reverted back.When the chip of the embodiment of the method for implementation Fig. 8 or device receive be touching signals value time, that section touching signals value corresponding to line segment scope can be cut out.

Step 850 is for calculating the summation of the difference of each touching signals value and reference value.In other words, calculate exactly the corresponding touching signals value of line segment scope and reference value the area that crosses.

Then, in the middle of step 860, judge whether this summation or area are less than or equal to zero.In an embodiment, also can judge whether this summation or area are less than zero.If flow process moves towards step 870, think the part of closely taking over a job of the mutually required mistake of line segment scope, may ghost point or water stainly to cause.For example, the corresponding one dimension sensitive information of this line segment scope can be discarded, and further calculating need not be done to this part of closely taking over a job.If the judged result of step 860 is no, then flow process enters step 880, calculates line segment scope and closely to take over a job accordingly part.

Refer to shown in Fig. 9, it is the schematic diagram of the touch-control system 900 according to the embodiment of the present invention.Touch-control system 900 comprises and at least closely connects object 910, contact panel 920, touch-control treating apparatus 930 and main frame 940.In the present embodiment, above-mentioned contact panel 920 is formed at substrate, and this contact panel 920 can be touch control screen, and the present invention does not limit the form of contact panel 920.

In an embodiment, comprise multiple first electrodes 921 and multiple second electrode 922 in the Touch Zone of this contact panel 920, both overlappings form multiple sensing points.These first electrodes 921 and the second electrode 922 are connected respectively to touch-control treating apparatus 930.Under the sense mode of mutual capacitance, this first electrode 921 can be called the first bus or drive electrode, and this second electrode 922 can be called the second bus or sensing electrode.This touch-control treating apparatus 930 can utilize provides driving voltage (voltage of drive singal) to described first electrode 921, and measure the signal intensity of described second electrode 922, (be called for short and closely connect) this contact panel 920 of having learnt that external conductive object comes close to or in contact with.Those having ordinary skill in the art will appreciate that, above-mentioned touch-control treating apparatus 930 can utilize the mode of mutual capacitance or self-capacitance to detect closely take over a job part with closely connect object, no longer described in detail at this.

Also comprise main frame 940 in fig .9, it can be central processing unit of executive operating system and so on, or the primary processor in embedded system, or other forms of computing machine.In an embodiment, this touch-control system 900 can be flat computer, and this main frame 940 can be the central processing unit performing flat computer operating system.For example, this flat computer performs Android (Android) operating system, and this main frame 940 is peace scheme (ARM) processor performing Android operation system.The present invention does not limit the message form transmitted between this main frame 940 and this touch-control treating apparatus 930, as long as the information transmitted is correlated with the part of closely taking over a job that this contact panel 920 occurs.

Touch-control treating apparatus 930 shown in Fig. 9 can be used for the method flow diagram of execution shown in Fig. 8 all changes possible with it.This touch-control treating apparatus 930 can comprise or be connected to internal memory, for software, firmware, touching signals value, its difference, its pair of difference and other result of calculation performed by storage or intermediate value.

In sum, misjudgment provided by the present invention is closely taken over a job the method and apparatus of part, can reduce and even avoid the part of closely taking over a job of mistake to be reported to main frame, to such an extent as to produce be not the instruction that user wants.

Refer to shown in Figure 10 A, according to the embodiment of the present invention, it is for judging whether line segment corresponds to the schematic flow sheet of the nib of pointer.Touch-control treating apparatus 930 shown in Fig. 9 can be used for performing method flow diagram shown in Figure 10 A all changes possible with it.This touch-control treating apparatus 930 can comprise or be connected to internal memory, for software, firmware, touching signals value, its difference, its pair of difference and other result of calculation performed by storage or intermediate value.In the middle of Figure 10 A, except having except causal step, the present invention does not limit the sequencing that each step is implemented, and does not limit the step inserting other between each step yet.In addition, the embodiment of Figure 10 A also can consult Fig. 5 A, Fig. 5 B, Fig. 5 C, with the embodiment of Fig. 8.

In an embodiment, as the step 810 of Fig. 8 embodiment to 840, the touching signals value that line segment is corresponding with this line segment can be obtained.Then, perform step 1010, calculate first slope at this line segment edge.First slope of indication herein can be the slope of this line segment left side edge, also can be the slope of this line segment right side edge.In example, when the first slope is the slope of line segment left side edge, first relatively high point can be found to the right by the line segment leftmost side, then calculate first slope of line segment left side edge to this first relatively high point.In another example, when the first slope is the slope of line segment right side edge, first relatively high point can be found left by the line segment rightmost side, then calculate first slope of line segment right side edge to this first relatively high point.In addition, other slope computing method can also be utilized.Such as, directly can calculate the slope value of a certain scope in line segment edge, as the first above-mentioned slope.

After calculating this first slope, can continue to perform step 1020, judge whether this first slope is greater than slope critical value.When judged result is no, then perform step 1050, assert that this line segment does not correspond to the nib of this pointer, or be not the small size contact event of any external conductive object.When judged result is true time, optional step 1030 can be performed, or directly perform step 1040, assert that this line segment corresponds to the nib of this pointer, or the small size contact event of any external conductive object.

In the middle of optional step 1030, judge whether the length of this line segment is less than length critical value.When judged result is no, then performs step 1050, assert that this line segment does not correspond to the nib of this pointer, or be not the small size contact event of any external conductive object.When judged result is true time, perform step 1040, assert that this line segment corresponds to the nib of this pointer, or the small size contact event of any external conductive object.

Refer to shown in Figure 10 B, according to the embodiment of the present invention, it is for judging whether line segment corresponds to the schematic flow sheet of the nib of pointer.Compare with the embodiment of Figure 10 A, the embodiment of Figure 10 B continued to use step 1030,1040, with 1050.In the middle of initial step 1015, except calculating the first slope, also calculate the second slope.In other words, the slope of this line segment left side edge and right side edge is namely calculated.When the first slope represents the slope of line segment left side edge, namely the second slope represents the slope of line segment right side edge.Otherwise when the first slope represents the slope of line segment right side edge, namely the second slope represents the slope of line segment left side edge.

Then, in the middle of step 1025, judge whether this first slope and this second slope are all greater than slope critical value.When judged result is no, then perform step 1050, assert that this line segment does not correspond to the nib of this pointer, or be not the small size contact event of any external conductive object.When judged result is true time, optional step 1030 can be performed, or directly perform step 1040, assert that this line segment corresponds to the nib of this pointer, or the small size contact event of any external conductive object.

Refer to shown in Figure 10 C, according to the embodiment of the present invention, it is for judging whether line segment corresponds to the schematic flow sheet of the nib of pointer.Compare with the embodiment of Figure 10 A, the embodiment of Figure 10 C has continued to use all steps, and only its order is different.Time initial, perform step 1030.When judged result is no, namely perform step 1050, otherwise when judged result is true time, perform optional step 1010 or 1040.After optional step 1010 performs, then perform step 1020.When its judged result is no, perform step 1050, otherwise when judged result is true time, perform step 1040.

Refer to shown in Figure 10 D, according to the embodiment of the present invention, it is for judging whether line segment corresponds to the schematic flow sheet of the nib of pointer.Compare with the embodiment of Figure 10 C, the embodiment of Figure 10 D changes step 1010 and 1020 into aforesaid step 1015 and 1025 respectively.Time initial, perform step 1030.When judged result is no, namely perform step 1050, otherwise when judged result is true time, perform optional step 1015 or 1040.After optional step 1015 performs, then perform step 1025.When its judged result is no, perform step 1050, otherwise when judged result is true time, perform step 1040.

Refer to shown in Figure 11 A, according to the embodiment of the present invention, it is for judging whether line segment corresponds to the schematic flow sheet of the shaping claviform of suspension.Touch-control treating apparatus 930 shown in Fig. 9 can be used for performing method flow diagram shown in Figure 11 A all changes possible with it.This touch-control treating apparatus 930 can comprise or be connected to internal memory, for software, firmware, touching signals value, its difference, its pair of difference and other result of calculation performed by storage or intermediate value.In the middle of Figure 11 A, except having except causal step, the present invention does not limit the sequencing that each step is implemented, and does not limit the step inserting other between each step yet.In addition, the embodiment of Figure 11 A also can consult Fig. 5 A, Fig. 5 B, Fig. 5 C, Fig. 8, Figure 10 A, Figure 10 B, Figure 10 C, with the embodiment of Figure 10 D.

In an embodiment, as the step 810 of Fig. 8 embodiment to 840, the touching signals value that line segment is corresponding with this line segment can be obtained.Then, perform step 1110, calculate first slope at this line segment edge.First slope of indication herein can be the slope of this line segment left side edge, also can be the slope of this line segment right side edge.In example, when the first slope is the slope of line segment left side edge, first relatively high point can be found to the right by the line segment leftmost side, then calculate first slope of line segment left side edge to this first relatively high point.In another example, when the first slope is the slope of line segment right side edge, first relatively high point can be found left by the line segment rightmost side, then calculate first slope of line segment right side edge to this first relatively high point.In addition, other slope computing method can also be utilized.Such as, directly can calculate the slope value of a certain scope in line segment edge, as the first above-mentioned slope.

After calculating this first slope, can continue to perform step 1120, judge whether this first slope is less than slope critical value.When result is no, can step 1150 be performed, assert that this line segment does not correspond to the shaping claviform of suspension.When judged result is true time, optional step 1130 can be performed, or directly perform step 1140, assert that this line segment corresponds to the shaping claviform of suspension.

In the middle of optional step 1130, judge whether the length of this line segment is less than length critical value.When judged result is no, then performs step 1150, assert that this line segment does not correspond to the shaping claviform of suspension.When judged result is true time, perform step 1140, assert that this line segment corresponds to the shaping claviform of suspension.

Refer to shown in Figure 11 B, according to the embodiment of the present invention, it is for judging whether line segment corresponds to the schematic flow sheet of the shaping claviform of suspension.Compare with the embodiment of Figure 11 A, the embodiment of Figure 11 B continued to use step 1130,1140, with 1150.In the middle of initial step 1115, except calculating the first slope, also calculate the second slope.In other words, the slope of this line segment left side edge and right side edge is namely calculated.When the first slope represents the slope of line segment left side edge, namely the second slope represents the slope of line segment right side edge.Otherwise when the first slope represents the slope of line segment right side edge, namely the second slope represents the slope of line segment left side edge.

Then, in the middle of step 1125, judge whether this first slope and this second slope are all greater than slope critical value.When judged result is no, then perform step 1150, assert that this line segment does not correspond to the shaping claviform of suspension.When judged result is true time, optional step 1130 can be performed, or directly perform step 1140, assert that this line segment corresponds to the shaping claviform of suspension.

Then, in the middle of step 1125, judge whether this first slope and this second slope are all greater than slope critical value.When judged result is no, then perform step 1150, assert that this line segment does not correspond to the shaping claviform of this suspension.When judged result is true time, optional step 1130 can be performed, or directly perform step 1140, assert that this line segment corresponds to the shaping claviform of suspension.

Refer to shown in Figure 11 C, according to the embodiment of the present invention, it is for judging whether line segment corresponds to the schematic flow sheet of the shaping claviform of suspension.Compare with the embodiment of Figure 11 A, the embodiment of Figure 11 C has continued to use all steps, and only its order is different.Time initial, perform step 1130.When judged result is no, namely perform step 1150, otherwise when judged result is true time, perform optional step 1110 or 1140.After optional step 1110 performs, then perform step 1120.When its judged result is no, perform step 1150, otherwise when judged result is true time, perform step 1140.

Refer to shown in Figure 11 D, according to the embodiment of the present invention, it is for judging whether line segment corresponds to the schematic flow sheet of the shaping claviform of suspension.Compare with the embodiment of Figure 11 C, the embodiment of Figure 11 D changes step 1110 and 1120 into aforesaid step 1115 and 1125 respectively.Time initial, perform step 1130.When judged result is no, namely perform step 1150, otherwise when judged result is true time, perform optional step 1115 or 1140.After optional step 1115 performs, then perform step 1125.When its judged result is no, perform step 1150, otherwise when judged result is true time, perform step 1140.

Refer to shown in Figure 12, it is the schematic flow sheet of the line segment group corresponding to the eliminating palm of the embodiment of the present invention.Touch-control treating apparatus 930 shown in Fig. 9 can be used for the method flow diagram of execution shown in Figure 12 all changes possible with it.This touch-control treating apparatus 930 can comprise or be connected to internal memory, for software, firmware, touching signals value, its difference, its pair of difference and other result of calculation performed by storage or intermediate value.In the middle of Figure 12, except having except causal step, the present invention does not limit the sequencing that each step is implemented, and does not limit the step inserting other between each step yet.In addition, the embodiment of Figure 12 also can consult the embodiment of Fig. 6 and Fig. 8.

Before the embodiment performing Figure 12, can first perform step 810 embodiment illustrated in fig. 8 to 830.Then, in step 1210, each line segment obtained is formed more than one line segment group.As shown in the embodiment of Figure 6, when adjacent line segment has a certain overlapping ranges, or each line segment is vertical component neighbor, namely can form a line segment group with these line segments.After step 1210, optional step 1220 can be performed or jump to step 1250.

In the middle of an optional step 1220, whether the time judging current time or obtain line segment group is within the valid period of timestamp.When not setting any time stamp, or the above-mentioned time not within the valid period of timestamp time, the optional step 1240 of flow performing.Suppose when above-mentioned time position is within the valid period of timestamp, then the optional step 1230 of flow performing.

Previously carried, judged whether a certain line segment group is the part of closely taking over a job caused corresponding to palm, can comprise multiple condition.As mentioned in the middle of the embodiment of Fig. 6, when a certain line segment group has following its combination in any of one of them conditioned disjunction, can think that this line segment group corresponds to palm.Condition one, is that a certain signal value of a certain line segment in line segment group exceeds palm signal threshold value, then thinks that this line segment group is palm.Condition two is that the length of a certain line segment in line segment group is when being greater than hand length threshold value.Condition three is that the line segment quantity of line segment group is when being greater than palm line segment quantity threshold value.Hand length threshold value can equal palm line segment quantity threshold value, also can be not equal to.

In the middle of optional step 1230, can relax or reduce the part or all of of the threshold value of above-mentioned condition, palm signal threshold value as escribed above, hand length threshold value, with palm line segment quantity threshold value etc.Relative, in the middle of optional step 1240, namely relaxed in the middle of reduction step 1230 threshold value.The present invention does not limit the various situations of relaxing with reduction.

Then, perform step 1250, according to the threshold value that above-mentioned steps 1230,1240 or each condition are fixed, judge which line segment group is the palm line segment group corresponding to palm.Suppose that step 1250 does not judge any one palm line segment group, then flow process can stop.Otherwise when step 1250 judges one or more palm line segment group, then flow process can enter optional step 1260 or directly enter step 1270.

Step 1260 and step 1220,1230,1240 the same be optional.In step 1260, because step 1250 has found out one or more palm line segment group, the valid period therefore needing update time and stab.If not yet establishing time stamp, then can set up a new timestamp in step 1260.When performing step 1210, if do not have establishing time to stab, then flow process directly can jump to step 1250 from step 1210.

In the middle of step 1270, perform the program of expansion palm line segment group.For each palm line segment group, can perform the following step one of them or all.Step 1270 can comprise horizontal expansion step, vertical opening step and rectangle expansion step.

Horizontal expansion step is that each line segment of this palm line segment group is extended regular length or ratio length along the direction of line segment respectively to front and back.This ratio length can be change along with the length of this line segment.If this line segment length is longer, then can extend longer distance.If this line segment length is shorter, then extend shorter distance.

Vertical opening step is that the top line segment at this palm line segment group edge and bottom line segment are extended one or many respectively to top and below, and the line segment length extended is identical with the length of edge line segment or be proportionate relationship.For example, first extension line segment length can be eighty per cant of edge line segment, and second extension line segment length can be eighty per cant of first extension line segment length, by that analogy, until the number extending line segment reaches the upper limit, or the length of extension line segment is lower than till lower limit.

Rectangle expansion step finds out an expansion palm rectangles encompass to live in this palm line segment group.In example, the edge of a palm rectangle will comprise the top line segment and bottom line segment, and leftmost position and rightmost position in the middle of this palm line segment group.In another embodiment, this expansion palm rectangle can comprise above-mentioned minimum palm rectangle.

By other line segments group that the scope expanded contains, be regarded as palm line segment group equally.In an embodiment, above-mentioned expansion or the scope of extension are only limited to once, that is need not be extended by the expansion palm line segment group that expansion scope contains again.In another embodiment, above-mentioned expansion or the scope of extension can be repeatedly, that is can be extended again by the expansion palm line segment group that expansion scope contains, the step of only extension or expansion can be same with former palm line segment faciation, also can be different from former palm line segment group.

Finally, flow performing step 1280, namely gets rid of the palm line segment group found in step 1250, and the expansion palm line segment group be expanded in the middle of step 1270.

Refer to shown in Figure 13, it is the determination methods of the palm line segment group according to the embodiment of the present invention.Touch-control treating apparatus 930 shown in Fig. 9 can be used for the method flow diagram of execution shown in Figure 13 all changes possible with it.This touch-control treating apparatus 930 can comprise or be connected to internal memory, for software, firmware, touching signals value, its difference, its pair of difference and other result of calculation performed by storage or intermediate value.In the middle of Figure 13, except having except causal step, the present invention does not limit the sequencing that each step is implemented, and does not limit the step inserting other between each step yet.In addition, the embodiment of Figure 13 also can consult the embodiment of Fig. 7 and Figure 12.

In an embodiment, the embodiment of Figure 13 goes in the middle of the step 1250 of Figure 12.Judge that one or more line segment group is for after palm line segment group in step 1250, the embodiment that can perform Figure 13 is again verified.But the embodiment that the present invention does not limit Figure 13 must be applicable to the situation of Figure 12.

After a certain line segment group is identified as palm line segment group, first step 1310 can be performed, the summation of each line segment length of this line segment group and palm line segment group length critical value are compared, when this total length is greater than this palm line segment group's length critical value, then flow process can perform step 1340, assert that this line segment group is palm line segment group.Otherwise flow process can perform step 1330, assert this line segment group non-palm line segment group.

In the middle of another embodiment, when total length is greater than this palm line segment group's length critical value, step 1320 can be performed again, judge whether each line segment length sequentially becomes to diminish greatly and reach a certain number of times.When reaching a certain number of times, flow process can perform step 1330, assert this line segment group non-palm line segment group.Otherwise perform step 1340, assert that this line segment group is palm line segment group.

In another embodiment, after a certain line segment group is identified as palm line segment group, first can perform step 1320, judge whether each line segment length sequentially becomes to diminish greatly and reach a certain number of times.When reaching a certain number of times, flow process can perform step 1330, assert this line segment group non-palm line segment group.Otherwise perform step 1340, assert that this line segment group is palm line segment group.

In a more embodiment, when each line segment length sequentially become diminish greatly reach a certain number of times time, can turn one's head to perform step 1310.When this total length is greater than this palm line segment group's length critical value, then flow process can perform step 1340, assert that this line segment group is palm line segment group.Otherwise flow process can perform step 1330, assert this line segment group non-palm line segment group.

In sum, step 1310 and/or 1320 can be utilized to judge whether a certain line segment group is really palm line segment group.And after judging that a certain line segment group is not palm line segment group, then one of following step can be utilized to be disassembled as multiple line segment group.For example: along the center line of line segment group, the relative low points of signal value can be found out.Line segment group is cut along these relative low points.In addition, also can find out the line segment that line segment group middle conductor length is less than a certain length critical value, cut along these line segments.Moreover, the line segment that the more adjacent line segment length of line segment group middle conductor length is short can also be found out, cut along these line segments.Suppose that two adjacent line segment lengths are identical, and be less than other two adjacent line segment lengths, then the adjacent segments that these two length are identical is divided into two line segment groups.

It is worth mentioning that, after a certain line segment group is split into multiple line segment group, these line segments group would not be affected by Figure 12 step 1270.In other words, even if these line segment groups enter the palm line segment group of expansion, also palm line segment group can not be added into.

One of feature of the present invention, is to provide a kind of misjudgment closely to take over a job the method for part, comprises: obtain the corresponding one or more touching signals value of line segment scope; Calculate the summation of the difference of each this touching signals value and reference value; And when this summation is less than or equal to zero, think the part of closely taking over a job of the mutually required mistake of this line segment scope.

One of feature of the present invention, is to provide a kind of misjudgment closely to take over a job the device of part, for carrying out the following step: obtain the corresponding one or more touching signals value of line segment scope; Calculate the summation of the difference of each this touching signals value and reference value; And when this summation is less than or equal to zero, think the part of closely taking over a job of the mutually required mistake of this line segment scope.

In one embodiment, the method more comprises the one dimension sensitive information according to the two differences including touching signals value, calculates this line segment scope.In another embodiment, the method more comprises the one dimension sensitive information according to the difference including touching signals value, calculates the one dimension sensitive information that this includes two differences of touching signals value.In a more embodiment, the method more comprises the one dimension sensitive information according to including touching signals value, obtains the one dimension sensitive information that this includes the difference of touching signals value.

In an embodiment, when this summation is greater than zero, calculate this line segment scope this part of closely taking over a job corresponding.

One of feature of the present invention, be to provide a kind of method whether line segment corresponds to pointer nib that judges, the method comprises: obtain the corresponding multiple touching signals value of line segment scope; Calculate the first slope of this line segment volume edges; Judge whether this first slope is greater than slope critical value; When this first slope is greater than this slope critical value, assert that this line segment corresponds to this pointer nib.

One of feature of the present invention, be to provide a kind of device whether line segment corresponds to pointer nib that judges, this device is for performing following step: obtain the corresponding multiple touching signals value of a line segment scope; Calculate the first slope of this line segment volume edges; Judge whether this first slope is greater than slope critical value; When this first slope is greater than this slope critical value, assert that this line segment corresponds to this pointer nib.

In an embodiment, when this first slope is greater than this slope critical value, then judge whether the length of this line segment is less than length critical value.When the length of this line segment is less than this length critical value, assert that this line segment corresponds to this pointer nib.

One of feature of the present invention, be to provide a kind of method whether line segment corresponds to pointer nib that judges, the method comprises: obtain the corresponding multiple touching signals value of line segment scope; Calculate the first slope and second slope of this line segment volume edges; Judge whether this first slope and the second slope are all greater than slope critical value; When this first slope and this second slope are all greater than this slope critical value, assert that this line segment corresponds to this pointer nib.

One of feature of the present invention, be to provide a kind of device whether line segment corresponds to pointer nib that judges, this device is for performing following step: obtain the corresponding multiple touching signals value of line segment scope; Calculate the first slope and second slope of this line segment volume edges; Judge whether this first slope and the second slope are all greater than slope critical value; When this first slope and this second slope are all greater than this slope critical value, assert that this line segment corresponds to this pointer nib.

In an embodiment, when this first slope and this second slope are all greater than this slope critical value, then judge whether the length of this line segment is less than length critical value.When the length of this line segment is less than this length critical value, assert that this line segment corresponds to this pointer nib.

One of feature of the present invention, be to provide a kind of method whether line segment corresponds to pointer nib that judges, the method comprises: judge whether the length of this line segment is less than length critical value; And when the length of this line segment is less than this length critical value, assert that this line segment corresponds to this pointer nib.

One of feature of the present invention, be to provide a kind of device whether line segment corresponds to pointer nib that judges, this device is for performing following step: judge whether the length of this line segment is less than length critical value; And when the length of this line segment is less than this length critical value, assert that this line segment corresponds to this pointer nib.

In an embodiment, more comprise: when the length of this line segment is less than this length critical value, obtain the corresponding multiple touching signals value of this line segment scope; Calculate the first slope of this line segment volume edges; Judge whether this first slope is greater than slope critical value; When this first slope is greater than this slope critical value, assert that this line segment corresponds to this pointer nib.

In an embodiment, more comprise: when the length of this line segment is less than this length critical value, obtain the corresponding multiple touching signals value of line segment scope; Calculate the first slope and second slope of this line segment volume edges; Judge whether this first slope and this second slope are all greater than slope critical value; When this first slope and the second slope are all greater than this slope critical value, assert that this line segment corresponds to this pointer nib.

One of feature of the present invention, be to provide a kind of method whether line segment corresponds to the shaping claviform of suspension that judges, the method comprises: obtain the corresponding multiple touching signals value of this line segment scope; Calculate the first slope of this line segment volume edges; Judge whether this first slope is less than slope critical value; When this first slope is less than this slope critical value, assert that this line segment corresponds to the shaping claviform of this suspension.

One of feature of the present invention, be a kind of device whether line segment corresponds to the shaping claviform of suspension that judges, this device is for performing following step: obtain the corresponding multiple touching signals value of this line segment scope; Calculate the first slope of this line segment volume edges; Judge whether this first slope is less than slope critical value; When this first slope is less than this slope critical value, assert that this line segment corresponds to the shaping claviform of this suspension.

In an embodiment, when this first slope is less than this slope critical value, then judge whether the length of this line segment is less than length critical value.When the length of this line segment is less than this length critical value, assert that this line segment corresponds to the shaping claviform of this suspension.

One of feature of the present invention, be to provide a kind of method whether line segment corresponds to the shaping claviform of suspension that judges, the method comprises: obtain the corresponding multiple touching signals value of this line segment scope; Calculate the first slope and second slope of this line segment volume edges; Judge whether this first slope and this second slope are all less than slope critical value; When this first slope and this second slope are all less than this slope critical value, assert that this line segment corresponds to the shaping claviform of this suspension.

One of feature of the present invention, be a kind of device whether line segment corresponds to the shaping claviform of suspension that judges, this device is for performing following step: obtain the corresponding multiple touching signals value of this line segment scope; Calculate the first slope and second slope of this line segment volume edges; Judge whether this first slope and this second slope are all less than slope critical value; When this first slope and this second slope are all less than this slope critical value, assert that this line segment corresponds to the shaping claviform of this suspension.

In an embodiment, when this first slope and this second slope are all less than this slope critical value, then judge whether the length of this line segment is less than length critical value.When the length of this line segment is less than this length critical value, assert that this line segment corresponds to the shaping claviform of this suspension.

One of feature of the present invention, be to provide a kind of method whether line segment corresponds to the shaping claviform of suspension that judges, the method comprises: judge whether the length of this line segment is less than length critical value; And when the length of this line segment is less than this length critical value, assert that this line segment corresponds to the shaping claviform of this suspension.

One of feature of the present invention, be to provide a kind of device whether line segment corresponds to the shaping claviform of suspension that judges, this device is for performing following step: judge whether the length of this line segment is less than length critical value; And when the length of this line segment is less than this length critical value, assert that this line segment corresponds to the shaping claviform of this suspension.

In an embodiment, more comprise: when the length of this line segment is less than this length critical value, obtain the corresponding multiple touching signals value of this line segment scope; Calculate the first slope of this line segment volume edges; Judge whether this first slope is less than slope critical value; When this first slope is less than this slope critical value, assert that this line segment corresponds to the shaping claviform of this suspension.

In an embodiment, more comprise: when the length of this line segment is less than this length critical value, obtain the corresponding multiple touching signals value of line segment scope; Calculate the first slope and second slope of this line segment volume edges; Judge whether this first slope and this second slope are all less than slope critical value; When this first slope and the second slope are all less than this slope critical value, assert that this line segment corresponds to the shaping claviform of this suspension.

One of feature of the present invention, be to provide a kind of method getting rid of line segment group corresponding to palm, the method comprises: obtain multiple line segment group; Judge in the middle of the plurality of line segment group, whether to there is one or more palm line segment group; When this palm line segment group exists, expand this palm line segment group; And the palm line segment group got rid of after expansion.

One of feature of the present invention, be to provide a kind of device getting rid of line segment group corresponding to palm, this device is for performing following step: obtain multiple line segment group; According to the Rule of judgment of palm line segment group, judge in the middle of the plurality of line segment group, whether to there is one or more palm line segment group; When this palm line segment group exists, expand this palm line segment group; And the palm line segment group got rid of after expansion.

In an embodiment, more comprise: after the plurality of line segment group of acquisition, judge to obtain the time of the plurality of line segment group whether within the valid period of timestamp; When within valid period, relax the Rule of judgment of palm line segment group; When not within valid period, the Rule of judgment of reduction palm line segment group.In a more embodiment, more comprise: when this palm line segment group exists, upgrade the valid period of this timestamp.

In an embodiment, the Rule of judgment of this palm line segment group comprises: when a certain signal value of a certain line segment of a line segment group of the plurality of line segment group exceeds palm signal threshold value, then think that this line segment group is this palm line segment group.

In an embodiment, the Rule of judgment of this palm line segment group comprises: when the length of a certain line segment of a line segment group of the plurality of line segment group is greater than hand length threshold value, then think that this line segment group is this palm line segment group.

In an embodiment, the line segment quantity that the Rule of judgment of this palm line segment group comprises as a line segment group of the plurality of line segment group is greater than palm line segment group quantity threshold value, then think that this line segment group is this palm line segment group.

In an embodiment, the above-mentioned Rule of judgment relaxing palm line segment group comprises one of them or combination in any that reduce following threshold value: palm signal threshold value; Hand length threshold value; And palm line segment group quantity threshold value.In another embodiment, the Rule of judgment of above-mentioned reduction palm line segment group comprises one of them or combination in any of the following threshold value of reduction: palm signal threshold value; Hand length threshold value; And palm line segment group quantity threshold value.

In an embodiment, the step of this expansion palm line segment group more comprises one of them or its combination in any of the following step: horizontal expansion step; Vertical opening step; And rectangle expansion step.

In an embodiment, this horizontal expansion step is that each line segment of this palm line segment group is extended regular length or ratio length along the direction of line segment respectively to front and back.In another embodiment, this ratio length changes along with the length of this line segment.

In an embodiment, this vertical opening step is that the top line segment at this palm line segment group edge and bottom line segment are extended one or many respectively to top and below, and the line segment length extended is identical with the length of edge line segment or be proportionate relationship.In another embodiment, the length of the line segment length extended and edge line segment and the number of times of extension present proportionate relationship.

In an embodiment, this rectangle expansion step finds out an expansion palm rectangles encompass to live in this palm line segment group.In another embodiment, this expansion palm rectangle comprises minimum palm rectangle.

In an embodiment, more comprise: before this palm line segment group of expansion, judge that this palm line segment group is the need of segmentation.In another embodiment, more comprise: when one of them or its of following condition are arbitrarily made with immediately, assert that this palm line segment group needs segmentation: judge that the total length of this palm line segment group is greater than palm line segment group length critical value; And judge that each line segment length of this palm line segment group sequentially becomes to diminish greatly and reach a certain number of times.

In an embodiment, more comprise: when judging that this palm line segment group needs segmentation, along the center line of this palm line segment group, find out multiple relative low points of signal value.This palm line segment group is cut along the plurality of relative low points.In an embodiment, more comprise: when judging that this palm line segment group needs segmentation, finding out multiple line segments that this palm line segment group middle conductor length is less than a certain length critical value, cutting along the plurality of line segment.In an embodiment, more comprise: when judging that this palm line segment group needs segmentation, multiple line segments that the line segment length that line segment group middle conductor length is more adjacent is short, cut along the plurality of line segment.In another embodiment, when adjacent two line segment lengths are identical, and be less than other two adjacent line segment lengths, then adjacent segments identical for these two length be divided into two line segment groups.

In an embodiment, more comprise: when this palm line segment group is split into multiple second line segment group, the plurality of second line segment group can not become the palm line segment group of this expansion.

One of feature of the present invention, be that providing a kind of judges the method for palm line segment group the need of segmentation, the method comprises: when one of them or its of following condition are arbitrarily made with immediately, assert that this palm line segment group needs segmentation: judge that the total length of this palm line segment group is greater than palm line segment group length critical value; And judge that each line segment length of this palm line segment group sequentially becomes to diminish greatly and reach a certain number of times.

One of feature of the present invention, be that providing a kind of judges the device of palm line segment group the need of segmentation, this device is for performing following step: when one of them or its of following condition are arbitrarily made with immediately, assert that this palm line segment group needs segmentation: judge that the total length of this palm line segment group is greater than palm line segment group length critical value; And judge that each line segment length of this palm line segment group sequentially becomes to diminish greatly and reach a certain number of times.

In an embodiment, more comprise: when judging that this palm line segment group needs segmentation, along the center line of this palm line segment group, find out multiple relative low points of signal value.This palm line segment group is cut along the plurality of relative low points.In an embodiment, more comprise: when judging that this palm line segment group needs segmentation, finding out multiple line segments that this palm line segment group middle conductor length is less than a certain length critical value, cutting along the plurality of line segment.In an embodiment, more comprise: when judging that this palm line segment group needs segmentation, multiple line segments that the line segment length that line segment group middle conductor length is more adjacent is short, cut along the plurality of line segment.In another embodiment, when adjacent two line segment lengths are identical, and be less than other two adjacent line segment lengths, then adjacent segments identical for these two length be divided into two line segment groups.

More than describe and be only each embodiment of the present invention, confining spectrum of the present invention will be as the criterion with right.

Claims (10)

1. misjudgment is closely taken over a job a method for part, it is characterized in that comprising following steps:

Obtain the corresponding one or more touching signals value of line segment scope;

Calculate the summation of the difference of each this touching signals value and reference value; And

When this summation is less than or equal to zero, think the part of closely taking over a job of the mutually required mistake of this line segment scope.

2. misjudgment according to claim 1 is closely taken over a job the method for part, it is characterized in that wherein more comprising following steps:

According to the one dimension sensitive information of two differences including touching signals value, calculate this line segment scope.

3. misjudgment according to claim 2 is closely taken over a job the method for part, it is characterized in that wherein more comprising following steps: according to the one dimension sensitive information of difference including touching signals value, calculate the one dimension sensitive information that this includes two differences of touching signals value.

4. misjudgment according to claim 3 is closely taken over a job the method for part, it is characterized in that more comprising following steps: according to the one dimension sensitive information including touching signals value, obtains the one dimension sensitive information that this includes the difference of touching signals value.

5. misjudgment according to claim 1 is closely taken over a job the method for part, it is characterized in that wherein more comprising following steps:

When this summation is greater than zero, calculate this line segment scope this part of closely taking over a job corresponding.

6. misjudgment is closely taken over a job a device for part, it is characterized in that, for carrying out the following step:

Obtain the corresponding one or more touching signals value of line segment scope;

Calculate the summation of the difference of each this touching signals value and reference value; And

When this summation is less than or equal to zero, think the part of closely taking over a job of the mutually required mistake of this line segment scope.

7. device according to claim 6, it is characterized in that wherein more for:

According to the one dimension sensitive information of two differences including touching signals value, calculate this line segment scope.

8. device according to claim 7, it is characterized in that wherein more for:

According to the one dimension sensitive information of difference including touching signals value, calculate the one dimension sensitive information that this includes two differences of touching signals value.

9. device according to claim 8, it is characterized in that wherein more for:

According to the one dimension sensitive information including touching signals value, obtain the one dimension sensitive information that this includes the difference of touching signals value.

10. device according to claim 6, it is characterized in that wherein more for:

When this summation is greater than zero, calculate this line segment scope this part of closely taking over a job corresponding.