CN109284017A - Judge whether line segment corresponds to the method and apparatus to stylus pen tip or conductive object - Google Patents

Abstract

Judge whether line segment corresponds to the method and apparatus of stylus pen tip the present invention relates to a kind of comprising the steps of: obtain line segment range multiple touching signals values accordingly；Calculate the first slope of the line segment volume edges；Judge whether the first slope is greater than slope critical value；When the first slope is greater than the slope critical value, assert that the line segment is corresponding to the stylus pen tip.Whether line segment provided by the present invention corresponds to the method and apparatus of stylus pen tip, it is possible to reduce or even the proximity event of mistake is avoided to be reported to host, so that generation is not the instruction that user wants.

Description

Judge whether line segment corresponds to the method and apparatus to stylus pen tip or conductive object

The application is entitled " method and apparatus of misjudgment proximity event " application No. is 201410737946.6 Application for a patent for invention divisional application, the applying date of original application is on December 05th, 2014.

Technical field

The present invention relates to detecting touch control screen on proximity event, especially with regard to judge by ghost point or water stain institute Caused by mistake proximity event.

Background technique

Detecting may be detected in the proximity event occurred on touch control screen since ghost is put or water stain generated Mistake proximity event.The proximity event that these mistakes generate is likely to result in user and assigns the instruction of mistake, and causes to draw The result returned.Therefore, a kind of method and apparatus of proximity event that can judge incorrectly is needed, to avoid above-mentioned consequence is caused.

In view of it is above-mentioned existing misjudgment proximity event method and apparatus existing for defect, the present inventor be based on from Thing such product design manufacture many years practical experience abundant and professional knowledge, and cooperate the utilization of scientific principle, actively studied Innovation can improve general existing misjudgment to found a kind of method and apparatus of new misjudgment proximity event The method and apparatus of proximity event makes it with more practicability.By constantly studying, designing, and by studying sample repeatedly And after improving, the present invention having practical value is created finally.

Summary of the invention

It is a primary object of the present invention to, overcome defect existing for the method for existing misjudgment proximity event, and mention For a kind of method of new misjudgment proximity event, the technical problem to be solved is that so that it is obtained line segment range corresponding one A or multiple touching signals values；Calculate the summation of the difference of each touching signals value and a reference value；And when the summation is small When zero, it is believed that the line segment range accordingly arrives the proximity event of mistake, is very suitable for practical.

It is to be solved another object of the present invention is to provide a kind of device of novel misjudgment proximity event Technical problem is that it is made to be used to execute above-mentioned step, thus more suitable for practical.

The object of the invention to solve the technical problems adopts the following technical solutions to realize.It proposes according to the present invention A kind of misjudgment proximity event method comprising the steps of: obtain line segment range one or more touch-controls letters accordingly Number value；Calculate the summation of the difference of each touching signals value and a reference value；And when the summation is less than or equal to zero, recognize The proximity event of mistake is accordingly arrived for the line segment range.

The object of the invention to solve the technical problems also can be used following technical measures and further realize.

The method of misjudgment proximity event above-mentioned, wherein further including following steps: according to including touching signals value One dimension sensitive information of double difference value, calculates the line segment range.

The method of misjudgment proximity event above-mentioned, wherein further including following steps: according to including touching signals value One dimension sensitive information of difference calculates one dimension sensitive information of the double difference value for including touching signals value.

The method of misjudgment proximity event above-mentioned, wherein further including following steps: according to including touching signals value One dimension sensitive information obtains one dimension sensitive information of the difference for including touching signals value.

The method of misjudgment proximity event above-mentioned, wherein further including following steps: when the summation is greater than zero, calculating The corresponding proximity event of the line segment range.

In addition the object of the invention to solve the technical problems is realized using following technical scheme again.It mentions according to the present invention The device of a kind of misjudgment proximity event out, for carrying out the following steps: it is one or more accordingly to obtain line segment range Touching signals value；Calculate the summation of the difference of each touching signals value and a reference value；And when the summation is less than or equal to When zero, it is believed that the line segment range accordingly arrives the proximity event of mistake.

The object of the invention to solve the technical problems also can be used following technical measures and further realize.

Device above-mentioned, wherein being more used for: according to one dimension sensitive information of the double difference value for including touching signals value, calculating The line segment range.

Device above-mentioned, wherein being more used for: according to one dimension sensitive information of the difference for including touching signals value, calculating should Include one dimension sensitive information of the double difference value of touching signals value.

Device above-mentioned, wherein being more used for: according to the one dimension sensitive information for including touching signals value, obtaining this and include touching Control one dimension sensitive information of the difference of signal value.

Device above-mentioned, wherein being more used for: when the summation is greater than zero, calculating the corresponding proximity thing of the line segment range Part.

The present invention has obvious advantages and beneficial effects compared with the existing technology.By above-mentioned technical proposal, the present invention The method and apparatus of provided misjudgment proximity event, it is possible to reduce or even the proximity event of mistake is avoided to be reported to master Machine, so that generation is not the instruction that user wants.

The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.

Detailed description of the invention

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

Fig. 2 is according to the schematic diagram of the signal value of the embodiment of the present invention and a reference value institute's envelope surface product.

Fig. 3 slipped over for the finger according to the embodiment of the present invention signal value that conducting liquid is presented, double difference value, with line segment Schematic diagram.

The signal of signal value and line segment that Fig. 4 causes ghost to be presented when putting for the more fingers according to the embodiment of the present invention Figure.

Fig. 5 A is the schematic diagram of the signal value presented according to the pen tip of the embodiment of the present invention and large-scale conductive body.

Fig. 5 B is the schematic diagram of the signal value presented according to the pen tip of the embodiment of the present invention and large-scale conductive body.

Fig. 5 C is the schematic diagram of the signal value presented according to the pen tip of the embodiment of the present invention and large-scale conductive body.

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

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

Fig. 8 is the flow diagram according to the method for the misjudgment proximity event of the embodiment of the present invention.

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

Figure 10 A to Figure 10 D is to judge whether line segment corresponds to the pen tip of stylus according to each embodiment of the present invention Flow diagram.

Figure 11 A to Figure 11 D is to judge whether line segment corresponds to the shaping claviform of suspension according to each embodiment of the present invention Flow diagram.

Figure 12 is the flow diagram for excluding line segment group corresponding to palm according to the embodiment of the present invention.

Figure 13 is the flow diagram according to the judgment method of the palm line segment group of the embodiment of the present invention.

[main element symbol description]

14: signal value

15: difference

16: double difference value

810-880: step

900: touch-control system

910: proximity object

920: touch panel

921: first electrode

922: second electrode

930: touch-control processing unit

940: host

1010-1050: step

1110-1150: step

1210-1280: step

1310-1340: step

Specific embodiment

It is as follows that the present invention will be described in some embodiments.However, other than disclosed embodiment, the scope of the present invention It is not limited by the embodiment, is being subject to claim.And in order to provide clearer description and make this skill Ordinary person can understand summary of the invention of the invention, illustrate interior each section and draw according to its opposite size, certain A little sizes or the ratio of other scale dependents may be highlighted and the exaggeration that seems, and there is no complete for incoherent detail section It draws entirely, in the hope of the succinct of diagram.

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

Touch panel/screen: sensed layer is formed in substrate, control device can use sensed layer and detect close or connect Touch the position of at least one shaping claviform of substrate.Sensed layer can be single or multi-layer structure.

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

External conductive object: can be a part of human body, such as finger or palm.It can be the object to connect with human body, Such as passive type stylus.It can be active stylus, enable touch panel be able to detect position by signal is issued.It can also To be the test conductive body of ground connection, such as bronze cylinders.It is also likely to be to be stained with stagnant water or conducting liquid on touch panel surface.

Proximity object: the external conductive object of substrate is come close to or in contact with.

Proximity event: when external conductive object comes close to or in contact with substrate, and by touch panel detection to the external conductive object The event of part.

Sensed layer: a plurality of (m item) driving electrodes comprising being parallel to first axle are felt with a plurality of (the n item) for being parallel to the second axis Electrode is surveyed, driving electrodes are exposed mutually with sensing electrode, form m multiplied by n sensing points.First axle can be orthogonal with the second axis, m N can be equal to.

Driving electrodes (the first conductive bar): comprising being parallel to the electrode of a plurality of (the m item) of first axle to issue driving wave, It can be and be made of transparent or opaque material, such as tin indium oxide (ITO) or carbon nanotube, can be single layer structure, It can be double-layer structure.

Sensing electrode (the second conductive bar): the electrode to detect capacitance signal can be by transparent or opaque material Texture is at such as tin indium oxide or carbon nanotube can be single layer structure, be also possible to double-layer structure.

One dimension sensitive information: multiple sensitive informations of first axle or the second axis are corresponded to.It can refer to single item sensing electricity Pole can also refer to single driving electrodes corresponding to n item corresponding to the set of the signal value of m sensing points of m driving electrodes The set of the signal value of n sensing points of sensing electrode.In other words, one dimension sensitive information may include the letter of m sensing points Number value, also may include the signal value of n sensing points.One dimension sensitive information also may include single difference of m/n sensing points With double difference value.

Two dimension sensitive informations: sensitive information made of multiple one dimension sensitive informations are combined, or be image.

A reference value (baseline or stray): corresponding to the signal value of a certain working frequency.

Signal value: can be the signal directly detected by sensing electrode, be also possible to by single difference and a reference value also Former signal value can be replaced mutually in certain embodiments though the two is different.

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

Double difference value: the difference of adjacent difference.

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

Line segment group: corresponding multiple line segments to one adjacent dimension sensitive information, at least one sense in adjacent axial direction Measuring point is corresponding.

Terrible point: the capacitive sensing for being not intended to occur is put accordingly or region.

The movement of touch panel/screen can be divided into three programs, first is that full frame driving detection process, by providing simultaneously Driving signal gives all driving electrodes, it can be determined that whether there is an at least proximity object.The news detecting journey the second is outside is made an uproar Sequence provides driving signal to all driving electrodes by stopping, it can be determined that whether extraneous electromagnetic interference is serious.Its three It is a report point program, by being sequentially provided driving signal to each driving electrodes, and detects or read by each sensing electrode The signal value taken is to other software or hardware module report touch point and/or relevant information.

In embodiment, these three above programs execute sequence, can first carry out full frame driving detection process, determine touching There is no any external conductive object on control panel/screen.Then outside is executed again make an uproar and interrogate detection process, determine that extraneous electromagnetism is dry It disturbs not very seriously, or sets the working frequency of new driving signal.Finally, executing report point program again.

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

In another embodiment, it can also be repeated as many times after report point program, execute primary external make an uproar and interrogate detection process, connect Repeat repeatedly report point program and primary external make an uproar and interrogate detection process.Be repeated as many times it is external make an uproar interrogate detection process and then Execute full frame driving detection process.

It will be understood by those skilled in the art that arriving, the execution of three of the above program can have infinite number of combinations, The present invention is not limited to a certain kind to combine.Its sequence for executing program, which can be, to be determined in advance, can also interim basis The situation that is encountered and change its sequence for executing program or offhand decision executes a certain program.

In general, the purpose of report point program be for detecting proximity in touch panel/screen style of writing and/or finger tip, And exclude palm, water (aggregate surrogates of conducting liquid are claimed using water as generation later) or unnecessary capacitive sensing. Report point program more may include and be subdivided into several steps below: scan or detect all sensing points；For sensing electrode Electrical characteristic is corrected with substrate bending；Find out each line segment corresponding to above-mentioned object；Examine each line segment to exclude water And ghost point；By qualified line segment composition line segment group to exclude palm；Style of writing and/or finger tip are positioned；Tracing and positioning is retouched Mark；By positioning report point.Although report point program may include above-mentioned each step, not each step is all necessary, certain Some steps can skip over.

In general, touch panel/screen processing module can obtain m item one dimension as measured by each sensing electrode Sensitive information is spent, every one dimension sensitive information includes the information of the sensing points of n corresponding each driving electrodes.Processing module can Signal value can be directly obtained, it is also possible to directly obtain difference.It, can be with calculating difference when obtaining signal value.When obtaining difference, Signal value can also be pushed back via a reference value.And one dimension sensitive information of signal value or difference is either obtained, all may be used To calculate double difference value in turn.

It can be as shown in fig.1, uppermost curve 14 be signal value.Intermediate curve 15 is difference.And it is nethermost Curve 16 is double difference value.

In optional step, due to the electrical characteristic of sensing electrode, so that signal value measured by each sensing points has Institute's deviation can be corrected signal value for this deviation.Further, since substrate may be curved because of proximity event Song, substrate itself are also possible to can have deformation, can also be corrected for influence caused by substrate deformation.

The step of finding out line segment using one dimension sensitive information may include using double difference value, difference and/or signal value come Find out the range of line segment.When obtain double difference value after, line segment can be captured there are many method.

In embodiment, the high point higher than double difference value threshold value can first be found out.Then a relative low points are found forward, , a relative low points, referred to as second point (rear point) are then found backward, then the range of the line segment is then at referred to as first point (preceding point) From first point to second point.For example there is the one dimension sensitive information of n sensing points, opposite high point is found at the 20th, it is past Before the relative low points looked for be the 15th point, the relative low points looked for backward are the 25th point.Then the range of the line segment is the 15th point to the 25th Point, the length of line segment are 11.

But in certain examples, it can not find relative low points within the scope of one forward or backward.When such case occurs When, then define the range that certain a distance forward or backward is line segment.For example, above-mentioned distance is set as 5.So work as phase When can not find relative low points backward to high point () at the 20th point, then defining at the 25th point is second point.The range of the line segment is from the 15th O'clock to the 25th point, the length of line segment is 11.Conversely,.

In the above embodiments, it is suitble to the line segment for having higher than double difference value threshold value.But there are some proximity events When, the single double difference value for being higher than double difference value threshold value can't be generated, but generates a more flat double difference curves. For example, when elongated touch-control pen tip or pencil point contact, single may not be generated and be higher than double difference value threshold value Double difference value.Therefore, if it is desirable to which acquisition line segment method below then can be used when detecting the proximity object of this type.

Continuous two positive double difference values can be first found out, after being added up compared with double difference value threshold value above-mentioned, if its Summation is higher than double difference value threshold value, can also be called opposite high point.Then, a relative low points are similarly found forward, are claimed For (preceding point), then find a relative low points, referred to as second point (rear point) backward at first point, then the range of the line segment be then from First point is arrived second point.Similarly, it when can not find relative low points within the scope of one forward or backward, then defines forward or backward Certain a distance be line segment range.

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

It is worth noting that, comparing the method for the summation and threshold value of two positive double difference values for second, it is readily applicable to There is the case where being individually greater than threshold value.

After finding out all line segments on touch panel/screen, then start to check line segment.To line segment inspection Mode can be used for excluding water and terrible point.The combination of double difference value, difference and/or signal value can be used herein to be sentenced It is disconnected.

After finding out line segment using double difference value, difference corresponding to the line segment and signal value can be learnt.It can use Signal value and a reference value calculate folded area therebetween.As shown in Fig. 2, when area is located at below a reference value, referred to as negative value (negative), negative value is usually as caused by water or ghost point.It therefore, can be with when the signal value area of the line segment is negative value The line segment is abandoned or ignored.

It is a sheet of water stain when having on touch panel referring to Fig. 3, in some cases, and when finger tip streaks water stain, it can also To detect finger tip.Three line segments can be cut out in double difference value part according to above-mentioned searching line segment mode.Distinguish from left to right It is LPC1, LPC2, with LPC3.

When these three line segments revert back signal value, can see the corresponding area to LPC1 is negative value, corresponding to LPC3 Area be also negative value, only correspond to LPC2 area be positive value.Therefore, LPC1 and LPC3 will be abandoned in this stage or Ignore, leaves LPC2.

Referring to Fig. 4, in some cases can there's something fishy point generate.For example there are four proximity event is same in Touch Zone Shi Fasheng.Since electric current can flow to another proximity object, such as the wherein finger stream from same palm from a proximity object Enter in sensing electrode to another finger, then recharge, therefore terrible point can be generated.These ghost points can be detected in double difference value Come, two of them proximity event belongs to same axis with two ghost points.

In the step of line segment captures, other than respectively corresponding the LPC1 and LPC5 to two proximity objects, also have Two line segments are respectively corresponded to two ghost point LPC2 and LPC4.However, among two ghost points, it is also possible to detect a line segment LPC3.When detecting the signal value area of each line segment, the signal value area of discovery LPC1 and LPC5 is positive value, and remaining LPC2, LPC3, with LPC4 are negative value, therefore can abandon or ignore LPC2, LPC3, with LPC4, leave behind LPC1 and LPC5.

Fig. 5 A is please referred to, has the proximity event for being not intended to occur in some cases.It is contact area in the right of figure Very little, and caused by change amount signal also less big Stylus contact.The left of figure is large-scale shaping claviform, for example conductive system The good copper post of number.When copper post from touch panel/screen there are also when a distance, have begun and sensing electrode had an impact. The two proximity events can be all found when capturing line segment, but touch panel should not the proximity event to the left side report Point.

Therefore, when examining its signal value, the signal value slope at line segment edge and the area of line segment can be checked, or Person is the area with length to indicate.The area 2 (Area 2) of pen tip is smaller, but the slope 2 (Slope 2) at its line segment edge It is larger.And the area 1A (Area 1A) of left proximity event is larger, but the slope 1A (Slope1A) at line segment edge is smaller.Cause This, can use slope and area, screen out the corresponding line segment of left side proximity event, to filter out unnecessary proximity event.

Fig. 5 B is please referred to, the large-scale shaping claviform of figure left is compared with Fig. 5 A, be closer to touch panel.Similarly, it touches Control panel will also filter the proximity event on the left side.Therefore the check system of Fig. 5 A is applied, the signal value slope at line segment edge is examined, And the area of line segment, or with length come the area that indicates.The area 2 of pen tip is smaller, but the slope 2 at its line segment edge It is larger.And the area 1B (Area 1B) of left proximity event is larger, but the slope 1B (Slope 1B) at line segment edge is smaller.To the greatest extent The area 1A of area 1B ratio Fig. 5 A of pipe Fig. 5 B is big, and caused signal value is also larger, but the two line segment edges is oblique Rate 1B and 1A come small than slope 2 caused by pen tip.Therefore, slope and area be can use, left side proximity event is screened out Corresponding line segment, to filter out unnecessary proximity event.

Fig. 5 C is please referred to, the large-scale shaping claviform and Fig. 5 A of figure left have touched touch panel compared with Fig. 5 B, Caused signal value will be much larger than signal value corresponding to pen tip.Therefore, the slope 1C at the line segment edge corresponding to (Slope 1C) can also be greater than previously not in contact with the slope 1A and 1B of touch panel.And its area 1C (Area 1C) can also be greater than Previously not in contact with the 1A of touch panel and 1B.Therefore, when the proximity thing for screening out Fig. 5 A Yu the left side Fig. 5 B using slope and area When part, the proximity event on the left side Fig. 5 C can't be deleted.

All line segments are being detected, and are being abandoned or to ignore certain some by water, terrible point or unnecessary proximity event institute Caused by after line segment, next each line segment aggregate to find out the mass center of proximity event, and is rejected at line segment group Fall the part of palm contacts.

Fig. 6 is please referred to, after finding out all line segments, can be combined into each line segment in vertical component neighbor For line segment group.Four line segment groups can be seen on Fig. 6, wherein the 4th group (Group4) is the proximity thing due to caused by palm Part.Second group (Group2) is then close caused by the finger not operated to touch panel contacts with third group (Group3) It takes over a job part, should also calculate in the part of palm.Only first group (Group1) is the hand really operated to touch panel Refer to proximity event caused by finger tip or pen tip.In other words, touch panel/screen should be by second group, third group, and the 4th group It is classified as palm portion, carries out report point just for first group of part.

In embodiment, when a certain line segment group has following one of condition or any combination thereof, that is, think the line Stage group is palm.Condition one is that a certain signal value of a certain line segment in line segment group exceeds palm signal threshold value, then it is assumed that should Line segment group is palm.Condition two, when being that the length of a certain line segment in line segment group is greater than hand length threshold value.Condition three is When the line segment quantity of line segment group is greater than palm line segment quantity threshold value.Hand length threshold value can be equal to palm line segment quantity door Bank value can also be not equal to.

As long as the step of other line segments group can be merged after having any one line segment group to be considered as palm line segment group Suddenly.In Fig. 6, the 4th group of each line segment can extend outwardly with vertical direction in the horizontal direction.Extend one it is horizontal away from From later, if touching other line segments group, the line segment group contacted can also be considered as palm line segment group.For example, second group With third group all in the 4th group of horizontal extension range, therefore the two line segments group can be classified as palm line segment group.And First group obviously further from the 4th group without being touched by the 4th group of extension, so first group can't be classified as palm Line segment group.

In the part of vertical direction, can by the line segment group at edge upwards with extend downwardly, the line segment group length extended and The length of edge line stage group is identical or proportional.For example, first extension line segment length can be the eighty per cant of edge line stage group, Second extends line segment length and can be the eighty per cant of first extension line segment length, and so on, the number until extending line segment Reach the upper limit, or extends the length of line segment lower than until lower limit.In Fig. 6, there is no any 4th group extend vertically Line segment touches other line segments group.

It should be noted that above extension can be only limited to once, that is, by it is original be considered as palm line segment group Four groups of extensions, and second group is then not necessarily to re-extend with third group.But the present invention can also be such that the line segment group being extended to carries out again Secondary extension, but the horizontal distance that its horizontal distance may extend than original is come short, vertically extending number or its ratio The number or ratio that may also extend than original are come few.In another example, the condition re-extended can also be set as prolonging with original The condition stretched is identical.

In another embodiment, original palm line segment group can be outlined palm rectangle (palm Rectangle), further in accordance with above-mentioned extension spirit, outline and expand palm rectangle (enlarged palm rectangle).If Other line segment groups have overlapping part with the expansion palm rectangle, then are considered as palm line segment group.

Although the method for expanding palm rectangle is simpler than former approach in operation, it is easy to frame more many areas.Such as Fruit has the proximity event for wanting report point in the range of expanding palm rectangle, corresponding to line segment group can be ignored and disregard.Cause This, under conditions of calculation resources license, the method that former extends out is relatively good.

When actually writing, since palm is constantly moved with finger tip, the area contacted can change rapidly. Sometimes, the contact portion of palm can split into many independent smaller areas, be considered as palm without method.Therefore, When certain primary detecting scanning is judged to have palm line segment group to occur, a palm flag and/or timestamp can be set.

During the setting of palm flag, three above-mentioned conditions can relax.For example, palm signal threshold value can contract Small, hand length threshold value can shorten, and palm line segment quantity threshold value can also shorten.Therefore, there can be biggish probability will A certain line segment group is judged as palm line segment group.In embodiment, the above-mentioned region relaxed may be limited to expand palm rectangle or It is to expand within palm shape.Only there is the line segment group overlapped into the expansion palm rectangle or shape, can just be applicable in and relax Three conditions.When judging less than palm line segment group, can check whether the timestamp is expired.When timestamp alreadys exceed When threshold value, the palm flag can be removed.

The present invention is not limited to above-mentioned setting palm flag and/or the methods of timestamp, as long as previously judgement occurred When palm, so that it may relax the condition for assert palm, the present invention can be applicable in.

In certain some situation, since proximity object is close in the extreme, so needing special method, line segment group is carried out Dismantling.Referring to Fig. 7, according to three above-mentioned conditions, this four finger tips are respectively corresponded in the case where four fingers are parallel Line segment can be combined into a line segment group.Since the quantity of line segment group is greater than palm line segment quantity threshold value, meeting It is considered as palm line segment group, is also just ignored and disregards.

In order to avoid this is happened, palm line segment group can be analyzed, when its gross area (namely a line Section length summation) be less than its corresponding to normal palm area when, that is, carry out dismantling step.Alternatively, when palm line segment group's When suddenly big or suddenly small variation is vertically presented in each line segment length, dismantling step can be also carried out.When dismantling, it can see To the signal value very little of the compartment of each finger tip, it is possible to be disassembled into four line segment groups, each line segment group is corresponding To a finger tip.Also due to dismantling is at four line segment groups, original line segment group would not be considered as palm line segment group.Therefore, Proximity event corresponding to four line segment groups all can be by report point.

That another needs specially treated is the line segment group of pen tip.In certain some embodiment, such as the line of sensing electrode Away from about 4mm, and when the diameter of pen tip is probably 1.5-2mm, only there are two types of may for corresponding line segment.Biggish machine Rate can correspond to single short-term section, and lesser probability can correspond to the line segment group as composed by two adjacent line segments, and This two lines section is about isometric, but its length is also extremely short.

Therefore, pen tip can be judged whether it is when detecting single line segment.Previously it has been noted that being judged as pen tip Condition may include the signal value slope for judging line segment edge.When being judged as pen tip, the pen for corresponding to the pen tip can be set Sharp flag and/or timestamp.

Assuming that when finding out the feature of line segment group similar to pen tip, then judging above-mentioned pen tip flag when scanning detecting next time Whether it has been set.If being set, it is possible to determine that line segment group is pen tip, it is necessary to be reported a little.Otherwise it ignores Line segment group.Due to the pen tip for the first time proximity touch panel/screen when, the probability of only smaller left and right is in a manner of line segment group Occur, as long as slightly moving, can almost occur in a manner of single line segment certainly, so less influencing whether the sense of user By.

It can use timestamp to be compared, during one section after the trace of the pen tip disappears, it can remove the pen Sharp flag.It is worth noting that, if allow multiple pen tips while contacting touch panel/screen, above-mentioned pen tip flag if, is needed Correspond to the trace of a certain pen tip.

It also to carry out being positioned according to line segment group after report point program；Tracing and positioning or trace；And point is reported into positioning The step of.

It please refers to shown in Fig. 8, to be illustrated according to the process of the method for the misjudgment proximity event of the embodiment of the present invention Figure.In Fig. 8, except having the step of causality, the present invention does not limit the sequencing that each step is implemented, It is not limited to the step of being inserted into other between each step.Furthermore it is also possible to refering to the embodiment of Fig. 2 to Fig. 4.

In embodiment, the process of this method can receive the one dimension sense for including touching signals value since the step 810 Measurement information, and according to the one dimension sensitive information for including touching signals value, calculate one dimension for including the difference of touching signals value Spend sensitive information.Then, step 820 is executed.

In another embodiment, the process of this method can be since the step 820, according to the difference for including touching signals value One dimension sensitive information, calculate include touching signals value double difference value one dimension sensitive information.Then, step 830 is executed.

In a more embodiment, the process of this method can be since the step 830, according to the double difference for including touching signals value One dimension sensitive information of value calculates line segment range.Then, step 840 is executed.In paragraph above-mentioned, describe Line segment range how is calculated according to double difference value, therefore is no longer gone to live in the household of one's in-laws on getting married and chatted.

It is worth noting that, the chip or device of the embodiment of the method for implementation Fig. 8, are receiving one dimension sensitive information, it can To receive touching signals value, the difference of touching signals value also can receive, can also receive the double difference value of touching signals value.This hair Bright do not limit receives any value, as long as line segment range can be calculated according to one dimension sensitive information.

Step 840 is for obtaining line segment range one or more touching signals values accordingly.As previously mentioned, the present invention is not It limits and receives any value, but in step 840, it is necessary to obtain touching signals value corresponding with line segment range.For example, when The chip or device of the embodiment of the method for implementation Fig. 8 are received when being double difference value, can first revert back difference, restore back touch-control Signal value.When the chip of the embodiment of the method for implementation Fig. 8 or device it is received be difference when, touching signals value can be reverted back. When the chip of the embodiment of the method for implementation Fig. 8 or device it is received be touching signals value when, can cut out corresponding to line segment range That section of touching signals value.

Step 850 is used to calculate the summation of the difference of each touching signals value and a reference value.In other words, line is exactly calculated The corresponding touching signals value of segment limit and a reference value cross the area come.

Then, judge whether the total and/or area is less than or equal to zero in step 860.It in embodiment, can also be with Judge the total and/or area whether less than zero.If it does, process moves towards step 870, it is believed that line segment range accordingly arrives mistake Proximity event, it may be possible to ghost point or it is water stain caused by.For example, the corresponding one dimension sense of the line segment range can be discarded Measurement information, and need not proximity event is further is calculated to this.If the judging result of step 860 be it is no, process enters step Rapid 880, calculate the corresponding proximity event of line segment range.

It please refers to shown in Fig. 9, for according to the schematic diagram of the touch-control system 900 of the embodiment of the present invention.Touch-control system 900 wraps Containing at least proximity object 910, touch panel 920, touch-control processing unit 930 and host 940.In the present embodiment, above-mentioned touching Control panel 920 is formed in substrate, which can be touch control screen, and the present invention does not limit the shape of touch panel 920 Formula.

In embodiment, multiple first electrodes 921 and multiple second electrodes are included in the Touch Zone of the touch panel 920 922, the two overlapping forms multiple sensing points.These first electrodes 921 and second electrode 922 are connected respectively to touch-control processing and fill Set 930.Under the sense mode of mutual capacitance, which is properly termed as the first conductive bar or driving electrodes, second electricity Pole 922 is properly termed as the second conductive bar or sensing electrode.The touch-control processing unit 930, which can use, provides driving voltage (driving The voltage of signal) first electrode 921 is arrived, and the signal intensity of the second electrode 922 is measured, learn external conductive object Part comes close to or in contact with (abbreviation proximity) touch panel 920.It will be understood by those skilled in the art that arriving, above-mentioned touch-control Processing unit 930 can use the mode of mutual capacitance or self-capacitance to detect proximity event and proximity object, no longer be subject to herein It is described in detail.

Also include host 940 in Fig. 9, can be the central processing unit etc for executing operating system, or insertion The computer of primary processor or other forms in formula system.In embodiment, which can be plate meter Calculation machine, the host 940 can be the central processing unit for executing tablet computer operating system.For example, which holds Row Android (Android) operating system, the host 940 are peace scheme (ARM) processor for executing Android operation system.The present invention is simultaneously The message form transmitted between the host 940 and the touch-control processing unit 930 is not limited, as long as the information transmitted is with the touching The proximity event occurred on control panel 920 is related.

Touch-control processing unit 930 shown in Fig. 9 can be used for executing method flow diagram shown in Fig. 8 and its possible all change Change.The touch-control processing unit 930 may include or be connected to memory, for storing performed software, firmware, touching signals Value, its difference, its double difference value and other calculated results or median.

In conclusion the method and apparatus of misjudgment proximity event provided by the present invention, it is possible to reduce or even avoid The proximity event of mistake is reported to host, so that generation is not the instruction that user wants.

It please refers to shown in Figure 10 A, to judge whether line segment corresponds to the pen tip of stylus according to the embodiment of the present invention Flow diagram.Touch-control processing unit 930 shown in Fig. 9 can be used for executing method flow diagram shown in Figure 10 A and it may All changes.The touch-control processing unit 930 may include or be connected to memory, for storing performed software, firmware, touching Control signal value, its difference, its double difference value and other calculated results or median.In Figure 10 A, in addition to there is causality The step of except, the present invention does not limit the sequencing that each step is implemented, and is not limited between each step yet and is inserted into it His the step of.In addition, the embodiment of Figure 10 A can also be refering to the embodiment of Fig. 5 A, Fig. 5 B, Fig. 5 C and Fig. 8.

In embodiment, it is corresponding with the line segment that line segment can be obtained as the step 810 to 840 of Fig. 8 embodiment Touching signals value.Then, step 1010 is executed, the first slope at the line segment edge is calculated.Signified first slope herein, can be with It is the slope of the line segment left side edge, is also possible to the slope of the line segment right side edge.In example, when first slope is line segment When the slope of left side edge, first opposite high point can be found to the right by the line segment leftmost side, then calculate line segment left side edge To the first slope of this first opposite high point.It, can when first slope is the slope of line segment right side edge in another example To find first to the left with respect to high point by the line segment rightmost side, line segment right side edge is then calculated to this first with respect to high point First slope.In addition to this it is possible to utilize other slope calculation methods.For example, it is a certain directly to calculate line segment edge The slope value of range, as above-mentioned first slope.

After calculating the first slope, step 1020 can be continued to execute, judges whether the first slope is greater than tiltedly Rate critical value.When judging result be it is no, then follow the steps 1050, assert that the line segment does not correspond to the pen tip of the stylus, or not It is the small area contact event of any external conductive object.When judging result is true, optional step 1030 can be executed, or It is direct execution step 1040, assert that the line segment is corresponding to the pen tip of the stylus or the facet of any external conductive object Product contact event.

In optional step 1030, judge whether the length of the line segment is less than length critical value.When judging result is When no, 1050 are thened follow the steps, assert that the line segment does not correspond to the pen tip of the stylus, or is not any external conductive object Small area contacts event.When judging result is true, step 1040 is executed, assert the corresponding pen tip to the stylus of the line segment, Or the small area of any external conductive object contacts event.

It please refers to shown in Figure 10 B, to judge whether line segment corresponds to the pen tip of stylus according to the embodiment of the present invention Flow diagram.It is compared with the embodiment of Figure 10 A, the embodiment of Figure 10 B has continued to use step 1030,1040 and 1050.It is rising In beginning step 1015, other than calculating first slope, the second slope is also calculated.In other words, calculate a line segment left side The slope of side edge and right side edge.When first slope represents the slope of line segment left side edge, the second slope represents line segment The slope of right side edge.Conversely, the second slope represents on the left of line segment when first slope represents the slope of line segment right side edge The slope at edge.

Then, in step 1025, judge whether the first slope and second slope are both greater than slope critical value.When Judging result be it is no, then follow the steps 1050, assert that the line segment does not correspond to the pen tip of the stylus, or be not that any outside is led The small area of electric object contacts event.When judging result is true, optional step 1030 can be executed, or directly execute step Rapid 1040, assert that the line segment is corresponded to the small area of the pen tip of the stylus or any external conductive object and contacts event.

It please refers to shown in Figure 10 C, to judge whether line segment corresponds to the pen tip of stylus according to the embodiment of the present invention Flow diagram.It is compared with the embodiment of Figure 10 A, the embodiment of Figure 10 C has continued to use all steps, and only its sequence is not Together.When starting, step 1030 is executed.When the judgment result is no, that is, step 1050 is executed, otherwise when judging result is true, Execute optional step 1010 or 1040.After optional step 1010 executes, step 1020 is then executed.When its judgement knot When fruit is no, step 1050 is executed, otherwise when judging result is true, executes step 1040.

It please refers to shown in Figure 10 D, to judge whether line segment corresponds to the pen tip of stylus according to the embodiment of the present invention Flow diagram.It is compared with the embodiment of Figure 10 C, the embodiment of Figure 10 D changes step 1010 with 1020 into above-mentioned respectively Step 1015 and 1025.When starting, step 1030 is executed.When the judgment result is no, that is, step 1050 is executed, judgement is otherwise worked as When being as a result true, optional step 1015 or 1040 is executed.After optional step 1015 executes, step is then executed 1025.When its judging result is no, step 1050 is executed, otherwise when judging result is true, executes step 1040.

It please refers to shown in Figure 11 A, to judge whether line segment corresponds to the conductive material of suspension according to the embodiment of the present invention The flow diagram of part.Touch-control processing unit 930 shown in Fig. 9 can be used for executing method flow diagram shown in Figure 11 A and it can The all changes of energy.The touch-control processing unit 930 may include or be connected to memory, for store performed software, firmware, Touching signals value, its difference, its double difference value and other calculated results or median.In Figure 11 A, in addition to there is cause and effect pass Except the step of being, the present invention does not limit the sequencing that each step is implemented, and is not limited between each step yet and is inserted into Other the step of.In addition, the embodiment of Figure 11 A can also refering to 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 embodiment, it is corresponding with the line segment that line segment can be obtained as the step 810 to 840 of Fig. 8 embodiment Touching signals value.Then, step 1110 is executed, the first slope at the line segment edge is calculated.Signified first slope herein, can be with It is the slope of the line segment left side edge, is also possible to the slope of the line segment right side edge.In example, when first slope is line segment When the slope of left side edge, first opposite high point can be found to the right by the line segment leftmost side, then calculate line segment left side edge To the first slope of this first opposite high point.It, can when first slope is the slope of line segment right side edge in another example To find first to the left with respect to high point by the line segment rightmost side, line segment right side edge is then calculated to this first with respect to high point First slope.In addition to this it is possible to utilize other slope calculation methods.For example, it is a certain directly to calculate line segment edge The slope value of range, as above-mentioned first slope.

After calculating the first slope, step 1120 can be continued to execute, judges whether the first slope is less than tiltedly Rate critical value.When result is no, step 1150 can be executed, assert that the line segment does not correspond to the shaping claviform of suspension.When sentencing When disconnected result is true, optional step 1130 can be executed, or directly execute step 1140, assert that the line segment is corresponding to suspension Shaping claviform.

In optional step 1130, judge whether the length of the line segment is less than length critical value.When judging result is When no, 1150 are thened follow the steps, assert that the line segment does not correspond to the shaping claviform of suspension.When judging result is true, step is executed Rapid 1140, assert that the line segment is corresponding to the shaping claviform to suspend.

It please refers to shown in Figure 11 B, to judge whether line segment corresponds to the conductive material of suspension according to the embodiment of the present invention The flow diagram of part.It is compared with the embodiment of Figure 11 A, the embodiment of Figure 11 B has continued to use step 1130,1140 and 1150.? In initial step 1115, other than calculating first slope, the second slope is also calculated.In other words, calculate the line segment The slope of left side edge and right side edge.When first slope represents the slope of line segment left side edge, the second slope represents line The slope of section right side edge.Conversely, the second slope represents a line segment left side when first slope represents the slope of line segment right side edge The slope of side edge.

Then, in step 1125, judge whether the first slope and second slope are both greater than slope critical value.When Judging result be it is no, then follow the steps 1150, assert that the line segment does not correspond to the shaping claviform of suspension.When judging result is true When, optional step 1130 can be executed, or directly execute step 1140, assert that the line segment is corresponding to the conductive material to suspend Part.

Then, in step 1125, judge whether the first slope and second slope are both greater than slope critical value.When Judging result be it is no, then follow the steps 1150, assert that the line segment does not correspond to the shaping claviform of the suspension.When judging result is true When, optional step 1130 can be executed, or directly execute step 1140, assert that the line segment is corresponding to the conductive material to suspend Part.

It please refers to shown in Figure 11 C, to judge whether line segment corresponds to the conductive material of suspension according to the embodiment of the present invention The flow diagram of part.It is compared with the embodiment of Figure 11 A, the embodiment of Figure 11 C has continued to use all steps, only its sequence It is different.When starting, step 1130 is executed.When the judgment result is no, that is, step 1150 is executed, otherwise when judging result is true When, execute optional step 1110 or 1140.After optional step 1110 executes, step 1120 is then executed.When it is sentenced When disconnected result is no, step 1150 is executed, otherwise when judging result is true, executes step 1140.

It please refers to shown in Figure 11 D, to judge whether line segment corresponds to the conductive material of suspension according to the embodiment of the present invention The flow diagram of part.It is compared with the embodiment of Figure 11 C, the embodiment of Figure 11 D changes step 1110 with 1120 into aforementioned respectively Step 1115 and 1125.When starting, step 1130 is executed.When the judgment result is no, that is, step 1150 is executed, otherwise when sentencing When disconnected result is true, optional step 1115 or 1140 is executed.After optional step 1115 executes, step is then executed 1125.When its judging result is no, step 1150 is executed, otherwise when judging result is true, executes step 1140.

It please refers to shown in Figure 12, for according to the process signal for excluding line segment group corresponding to palm of the embodiment of the present invention Figure.Touch-control processing unit 930 shown in Fig. 9 can be used for executing method flow diagram shown in Figure 12 and its possible all changes. The touch-control processing unit 930 may include or be connected to memory, for store performed software, firmware, touching signals value, its Difference, its double difference value and other calculated results or median.In Figure 12, except having the step of causality, this Invention does not limit the sequencing that each step is implemented, and is not limited to the step of being inserted into other between each step yet.In addition, The embodiment of Figure 12 can also be refering to the embodiment of Fig. 6 and Fig. 8.

Before the embodiment for executing Figure 12, the step 810 of embodiment illustrated in fig. 8 can be first carried out to 830.Then, exist Step 1210, each line segment of acquirement is formed into more than one line segment group.As shown in the embodiment of Figure 6, when adjacent line segment There are a certain range overlapping or each line segment in vertical component neighbor, it can to form a line segment group with these line segments.? After step 1210, optional step 1220 can be executed or jump to step 1250.

In an optional step 1220, judges current time or whether obtain the time of line segment group in timestamp In term of validity.When there is no setting to stab any time or the above-mentioned time is not within the term of validity of timestamp, process Execute optional step 1240.Assuming that meta position is within the term of validity of timestamp when above-mentioned, then process executes optional step Rapid 1230.

It had previously mentioned, and had judged whether a certain line segment group was that may include more corresponding to proximity event caused by palm Kind condition.If the embodiment of Fig. 6 is in the middle it has been noted that when a certain line segment group has following one of condition or any combination thereof When, it is believed that line segment group is corresponding 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 it is assumed that line segment group is palm.Condition two is that the length of a certain line segment in line segment group is greater than hand length When threshold value.Condition three, when being that the line segment quantity of line segment group is greater than palm line segment quantity threshold value.Hand length threshold value can be with Equal to palm line segment quantity threshold value, can also be not equal to.

In optional step 1230, it can relax or some or all of the threshold value for reducing above-mentioned condition, such as Above-mentioned palm signal threshold value, hand length threshold value and palm line segment quantity threshold value etc..Opposite, optionally walking In rapid 1240, i.e., the threshold value that is relaxed in reduction step 1230.The present invention does not limit the various feelings relaxed with reduction Condition.

Then, step 1250 is executed, according to the threshold value that above-mentioned steps 1230,1240 or each condition are fixed, judgement Which line segment group is the corresponding palm line segment group to palm.Assuming that step 1250 does not judge any one palm line segment Group, then process can stop.Conversely, then process can enter when step 1250 judges one or more palm line segment groups Optional step 1260 or it is directly entered step 1270.

Step 1260 is optional as step 1220,1230,1240.In step 1260, due to step 1250 Found out one or more palm line segment groups, it is therefore desirable to the term of validity of renewal time stamp.If not yet establishing time stabs, A new timestamp can be established in step 1260.When executing step 1210, if stabbing without establishing time, process can be with Directly step 1250 is jumped to from step 1210.

In step 1270, the program of expansion palm line segment group is executed.For each palm line segment group, can execute One of the following steps are whole.Step 1270 may include horizontal expansion step, vertical opening step and rectangle and expand Open step.

Horizontal expansion step is to extend each line segment of palm line segment group admittedly forward and backward along the direction of line segment Measured length or ratio length.The ratio length can be the length with the line segment and change.If the line segment length is longer, Longer distance can be extended.If the line segment length is shorter, extend shorter distance.

Vertical opening step be by the top line segment at palm line segment group edge and bottom line segment respectively upwards with Lower section extension is one or many, and the line segment length extended is identical with the length of edge line segment or is in proportionate relationship.For example, First extends line segment length and can be the eighty per cant of edge line segment, and second extension line segment length can be first extension line segment The eighty per cant of length, and so on, the number until extending line segment reaches the upper limit, or the length of extension line segment is lower than lower limit Only.

Rectangle expansion step is to find out an expansion palm rectangle to surround palm line segment group.In example, a hand Slap rectangle edge will comprising leftmost position in the top line segment and bottom line segment and palm line segment group with most The position on the right.In another embodiment, which may include above-mentioned the smallest palm rectangle.

Other line segments group that the range expanded covers equally is considered as palm line segment group.In embodiment, above-mentioned Expansion or the range extended are only limited to once, that is, need not be prolonged again by the expansion palm line segment group that expansion range covers It stretches.In another embodiment, the range of above-mentioned expansion or extension can be repeatedly, that is, the expansion covered by expansion range The step of palm line segment group can extend again, only extend or expand can be same with former palm line segment faciation, can also be with It is different from former palm line segment group.

Finally, process executes step 1280, that is, the palm line segment group found in step 1250 is excluded, and in step The expansion palm line segment group being expanded in rapid 1270.

It please refers to shown in Figure 13, for according to the judgment method of the palm line segment group of the embodiment of the present invention.Shown in Fig. 9 Touch-control processing unit 930 can be used for executing method flow diagram shown in Figure 13 and its possible all changes.Touch-control processing dress Setting 930 may include or be connected to memory, for storing performed software, firmware, touching signals value, its difference, its double difference Value and other calculated results or median.In Figure 13, except having the step of causality, the present invention is simultaneously unlimited The sequencing that fixed each step is implemented, is not limited to the step of being inserted into other between each step yet.In addition, the implementation of Figure 13 Example can also be refering to the embodiment of Fig. 7 and Figure 12.

In embodiment, the embodiment of Figure 13 can be adapted in the step 1250 of Figure 12.Judge in step 1250 One or more line segment groups is after palm line segment group, the embodiment that can execute Figure 13 again are verified.But the present invention is not The embodiment for limiting Figure 13 has to the case where being suitable for Figure 12.

After a certain line segment group is identified as palm line segment group, step 1310 can be first carried out, by line segment group's The summation of each line segment length is compared with palm line segment group's length critical value, when the total length is greater than palm line segment group's length When critical value, then process can execute step 1340, assert that line segment group is palm line segment group.Otherwise process can execute step 1330, assert the non-palm line segment group of line segment group.

In another embodiment, when total length is greater than palm line segment group's length critical value, step can be executed again 1320, judge whether each line segment length sequentially becomes larger to become smaller and reaches a certain number.When reaching a certain number, process can be executed Step 1330, assert the non-palm line segment group of line segment group.It is no to then follow the steps 1340, assert that line segment group is palm line segment group.

In another embodiment, after a certain line segment group is identified as palm line segment group, step can be first carried out 1320, judge whether each line segment length sequentially becomes larger to become smaller and reaches a certain number.When reaching a certain number, process can be executed Step 1330, assert the non-palm line segment group of line segment group.It is no to then follow the steps 1340, assert that line segment group is palm line segment group.

In a more embodiment, when each line segment length sequentially become larger become smaller reach a certain number when, can turn one's head to execute Step 1310.When the total length is greater than palm line segment group's length critical value, then process can execute step 1340, and assert should Line segment group is palm line segment group.Otherwise process can execute step 1330, assert the non-palm line segment group of line segment group.

In conclusion can use step 1310 and/or 1320 come judge a certain line segment group whether be really palm line segment Group.And after judging that a certain line segment group is not palm line segment group, then it can use one of following steps and disassembled and be Multiple line segment groups.For example: the relative low points of signal value can be found out along the middle line of line segment group.By line segment group along these Relative low points are cut.In addition it is also possible to the line segment that line segment group's middle line segment length is less than a certain length critical value is found out, along These line segments are cut.Furthermore the short line segment of the more adjacent line segment length of line segment group's middle line segment length can also be found out, along These line segments are cut.Assuming that two adjacent line segment lengths are identical, and be less than other two adjacent line segment lengths, then this The identical adjacent segments of two length are divided into two line segment groups.

It is noted that these line segments group would not be schemed after a certain line segment group is divided into multiple line segment groups 12 steps 1270 influence.In other words, just these line segment groups enter the palm line segment group of expansion, will not be added into palm line segment Group.

One of the features of the present invention is to provide a kind of method of proximity event that judges incorrectly, includes: obtaining line segment range Corresponding one or more touching signals value；Calculate the summation of the difference of each touching signals value and a reference value；And work as When the summation is less than or equal to zero, it is believed that the line segment range accordingly arrives the proximity event of mistake.

One of the features of the present invention is to provide a kind of device of proximity event that judges incorrectly, for carrying out the following steps: Obtain line segment range one or more touching signals values accordingly；Calculate the difference of each touching signals value and a reference value Summation；And when the summation is less than or equal to zero, it is believed that the line segment range accordingly arrives the proximity event of mistake.

In one embodiment, this method further includes the one dimension sensitive information according to the double difference value for including touching signals value, Calculate the line segment range.In another embodiment, this method further includes the one dimension sense according to the difference for including touching signals value Measurement information calculates one dimension sensitive information of the double difference value for including touching signals value.In a more embodiment, this method is more wrapped Containing according to the one dimension sensitive information for including touching signals value, the one dimension sensing letter of the difference for including touching signals value is obtained Breath.

In embodiment, when the summation is greater than zero, the corresponding proximity event of the line segment range is calculated.

One of the features of the present invention, is to provide and a kind of judges whether line segment corresponds to the method for stylus pen tip, the party Method includes: obtaining line segment range multiple touching signals values accordingly；Calculate the first slope of the line segment volume edges；Judge this Whether one slope is greater than slope critical value；When the first slope is greater than the slope critical value, assert that the line segment is corresponding to the touching Control a pen tip.

One of the features of the present invention, be to provide it is a kind of judge whether line segment corresponds to the device of stylus pen tip, the dress It sets for executing following step: obtaining a line segment range multiple touching signals values accordingly；Calculate the line segment volume edges First slope；Judge whether the first slope is greater than slope critical value；When the first slope is greater than the slope critical value, assert The line segment is corresponding to the stylus pen tip.

In embodiment, when the first slope is greater than the slope critical value, then judge whether the length of the line segment is less than Length critical value.When the length of the line segment is less than the length critical value, assert that the line segment is corresponding to the stylus pen tip.

One of the features of the present invention, is to provide and a kind of judges whether line segment corresponds to the method for stylus pen tip, the party Method includes: obtaining line segment range multiple touching signals values accordingly；Calculate the first slope and second of the line segment volume edges tiltedly Rate；Judge whether the first slope and the second slope are both greater than slope critical value；When the first slope and second slope are all big When the slope critical value, assert that the line segment is corresponding to the stylus pen tip.

One of the features of the present invention, be to provide it is a kind of judge whether line segment corresponds to the device of stylus pen tip, the dress It sets for executing following step: obtaining line segment range multiple touching signals values accordingly；Calculate the of the line segment volume edges One slope and the second slope；Judge whether the first slope and the second slope are both greater than slope critical value；When the first slope with When second slope is both greater than the slope critical value, assert that the line segment is corresponding to the stylus pen tip.

In embodiment, when the first slope and second slope are both greater than the slope critical value, then judge the line segment Length whether be less than length critical value.When the length of the line segment is less than the length critical value, assert that the line segment is corresponding and extremely should Stylus pen tip.

One of the features of the present invention, is to provide and a kind of judges whether line segment corresponds to the method for stylus pen tip, the party Method includes: judging whether the length of the line segment is less than length critical value；And when the length of the line segment is less than the length critical value When, assert that the line segment is corresponding to the stylus pen tip.

One of the features of the present invention, be to provide it is a kind of judge whether line segment corresponds to the device of stylus pen tip, the dress It sets for executing following step: judging whether the length of the line segment is less than length critical value；And when the length of the line segment is small When the length critical value, assert that the line segment is corresponding to the stylus pen tip.

In embodiment, it further includes: when the length of the line segment is less than the length critical value, it is corresponding to obtain the line segment range Multiple touching signals values；Calculate the first slope of the line segment volume edges；It is critical to judge whether the first slope is greater than slope Value；When the first slope is greater than the slope critical value, assert that the line segment is corresponding to the stylus pen tip.

In embodiment, it further includes: when the length of the line segment is less than the length critical value, it is corresponding to obtain line segment range Multiple touching signals values；Calculate the first slope and the second slope of the line segment volume edges；Judge the first slope and this second Whether slope is both greater than slope critical value；When the first slope and the second slope are both greater than the slope critical value, the line is assert Section is corresponding to the stylus pen tip.

One of the features of the present invention, be to provide it is a kind of judge whether line segment corresponds to the method for the shaping claviform of suspension, This method includes: obtaining the line segment range multiple touching signals values accordingly；Calculate the first slope of the line segment volume edges；Sentence Whether the first slope of breaking is less than slope critical value；When the first slope is less than the slope critical value, assert that the line segment is corresponding To the shaping claviform of the suspension.

One of the features of the present invention, be it is a kind of judge whether line segment corresponds to the device of the shaping claviform of suspension, the dress It sets for executing following step: obtaining the line segment range multiple touching signals values accordingly；Calculate the line segment volume edges First slope；Judge whether the first slope is less than slope critical value；When the first slope is less than the slope critical value, assert The corresponding shaping claviform to the suspension of the line segment.

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

One of the features of the present invention, be to provide it is a kind of judge whether line segment corresponds to the method for the shaping claviform of suspension, This method includes: obtaining the line segment range multiple touching signals values accordingly；Calculate the first slopes of the line segment volume edges with Second slope；Judge whether the first slope and second slope are both less than slope critical value；When the first slope and this second When slope is both less than the slope critical value, the corresponding shaping claviform to the suspension of the line segment is assert.

One of the features of the present invention, be it is a kind of judge whether line segment corresponds to the device of the shaping claviform of suspension, the dress It sets for executing following step: obtaining the line segment range multiple touching signals values accordingly；Calculate the line segment volume edges First slope and the second slope；Judge whether the first slope and second slope are both less than slope critical value；When this first tiltedly When rate and second slope are both less than the slope critical value, the corresponding shaping claviform to the suspension of the line segment is assert.

In embodiment, when the first slope and second slope are both less than the slope critical value, then judge the line segment Length whether be less than length critical value.When the length of the line segment is less than the length critical value, assert that the line segment is corresponding and extremely should The shaping claviform of suspension.

One of the features of the present invention, be to provide it is a kind of judge whether line segment corresponds to the method for the shaping claviform of suspension, This method includes: judging whether the length of the line segment is less than length critical value；And face when the length of the line segment is less than the length When dividing value, the corresponding shaping claviform to the suspension of the line segment is assert.

One of the features of the present invention, be to provide it is a kind of judge whether line segment corresponds to the device of the shaping claviform of suspension, The device is for executing following step: judging whether the length of the line segment is less than length critical value；And the length when the line segment When degree is less than the length critical value, the corresponding shaping claviform to the suspension of the line segment is assert.

In embodiment, it further includes: when the length of the line segment is less than the length critical value, it is corresponding to obtain the line segment range Multiple touching signals values；Calculate the first slope of the line segment volume edges；It is critical to judge whether the first slope is less than slope Value；When the first slope is less than the slope critical value, the corresponding shaping claviform to the suspension of the line segment is assert.

In embodiment, it further includes: when the length of the line segment is less than the length critical value, it is corresponding to obtain line segment range Multiple touching signals values；Calculate the first slope and the second slope of the line segment volume edges；Judge the first slope and this second Whether slope is both less than slope critical value；When the first slope and the second slope are both less than the slope critical value, the line is assert The corresponding shaping claviform to the suspension of section.

One of the features of the present invention is to provide the method for line segment group corresponding to exclusion palm a kind of, and this method includes: Obtain multiple line segment groups；Judge that multiple line segment group whether there is one or more palm line segment groups in the middle；When the palm line segment In the presence of group, palm line segment group is expanded；And exclude the palm line segment group after expansion.

One of the features of the present invention, is to provide the device of line segment group corresponding to exclusion palm a kind of, which is used for It executes following step: obtaining multiple line segment groups；According to the Rule of judgment of palm line segment group, judge that multiple line segment group is in the middle It is no to there are one or more palm line segment groups；In the presence of palm line segment group, palm line segment group is expanded；And exclude expansion Palm line segment group afterwards.

In embodiment, it further includes: after obtaining multiple line segment group, judging that the time for obtaining multiple line segment group is It is no within the term of validity of timestamp；When within term of validity, relax the Rule of judgment of palm line segment group；When not in validity period When in limit, the Rule of judgment of palm line segment group is restored.It in a more embodiment, further includes: in the presence of palm line segment group, more The term of validity of the new timestamp.

In embodiment, the Rule of judgment of palm line segment group includes: when multiple line segment group a line segment group it is a certain The a certain signal value of line segment exceeds palm signal threshold value, then it is assumed that line segment group is palm line segment group.

In embodiment, the Rule of judgment of palm line segment group includes: when multiple line segment group a line segment group it is a certain The length of line segment is greater than hand length threshold value, then it is assumed that line segment group is palm line segment group.

In embodiment, the Rule of judgment of palm line segment group includes the line segment number as the line segment group of multiple line segment group Amount is greater than palm line segment group quantity threshold value, then it is assumed that line segment group is palm line segment group.

In embodiment, the above-mentioned Rule of judgment for relaxing palm line segment group include reduce one of following threshold value or Any combination: palm signal threshold value；Hand length threshold value；And palm line segment group's quantity threshold value.In another embodiment In, the Rule of judgment of above-mentioned reduction palm line segment group includes to restore one of following threshold value or any combination: palm letter Number threshold value；Hand length threshold value；And palm line segment group's quantity threshold value.

In embodiment, the step of expansion palm line segment group further includes one of the following steps or its any group It closes: horizontal expansion step；Vertical opening step；And rectangle expansion step.

In embodiment, which is to distinguish each line segment of palm line segment group along the direction of line segment Extend regular length or ratio length forwards, backwards.In another embodiment, which changes with the length of the line segment Become.

In embodiment, which is by the top line segment at palm line segment group edge and bottom line segment One or many with lower section extension upwards respectively, the line segment length extended is identical with the length of edge line segment or is in ratio Relationship.In another embodiment, proportionate relationship is presented in the length of the line segment length and edge line segment that are extended and the number of extension.

In embodiment, which is to find out an expansion palm rectangle to surround palm line segment group.? In another embodiment, which includes the smallest palm rectangle.

In embodiment, it further includes: before expanding palm line segment group, judging whether the palm line segment group needs point It cuts.In another embodiment, it further includes: when one of following condition or any combination thereof is set up, assert the palm line Stage group needs to divide: judging that the total length of palm line segment group is greater than palm line segment group length critical value；And judge the palm Each line segment length of line segment group, which sequentially becomes larger, to become smaller up to a certain number.

In embodiment, it further includes: when judging that palm line segment group needs to divide, along in palm line segment group Line finds out multiple relative low points of signal value.The palm line segment group is cut along multiple relative low points.In embodiment In, it further includes: when judging that palm line segment group needs to divide, finding out palm line segment group's middle line segment length less than a certain length Multiple line segments of critical value, are cut along multiple line segment.In embodiment, it further includes: when judging palm line segment group When needing to divide, the short multiple line segments of the more adjacent line segment length of line segment group's middle line segment length are cut along multiple line segment It cuts.In another embodiment, when two adjacent line segment lengths are identical, and it is less than other two adjacent line segment lengths, then will The identical adjacent segments of the two length are divided into two line segment groups.

In embodiment, it further includes: when palm line segment group is divided into multiple second line segment groups, multiple second line Stage group will not become the palm line segment group of the expansion.

One of the features of the present invention is to provide a kind of method for judging palm line segment group and whether needing to divide, this method Include: when one of following condition or any combination thereof is set up, assert that palm line segment group needs to divide: judging the hand The total length for slapping line segment group is greater than palm line segment group length critical value；And judge each line segment length of palm line segment group sequentially Become larger and becomes smaller up to a certain number.

One of the features of the present invention is to provide a kind of device for judging palm line segment group and whether needing to divide, the device For executing following step: when one of following condition or any combination thereof is set up, assert that palm line segment group needs Divide: judging that the total length of palm line segment group is greater than palm line segment group length critical value；And judge palm line segment group Each line segment length sequentially become larger and become smaller up to a certain number.

In embodiment, it further includes: when judging that palm line segment group needs to divide, along in palm line segment group Line finds out multiple relative low points of signal value.The palm line segment group is cut along multiple relative low points.In embodiment In, it further includes: when judging that palm line segment group needs to divide, finding out palm line segment group's middle line segment length less than a certain length Multiple line segments of critical value, are cut along multiple line segment.In embodiment, it further includes: when judging palm line segment group When needing to divide, the short multiple line segments of the more adjacent line segment length of line segment group's middle line segment length are cut along multiple line segment It cuts.In another embodiment, when two adjacent line segment lengths are identical, and it is less than other two adjacent line segment lengths, then will The identical adjacent segments of the two length are divided into two line segment groups.

Described above is only each embodiment of the invention, and confining spectrum of the invention will be subject to scope of the claims.

Claims (18)

1. Judge whether line segment corresponds to the method for stylus pen tip 1. a kind of, which is characterized in that comprise the steps of:

   Obtain line segment range multiple touching signals values accordingly；

   Calculate the first slope of the line segment volume edges；

   Judge whether the first slope is greater than slope critical value；And

   When the first slope is greater than the slope critical value, assert that the line segment is corresponding to the stylus pen tip.
2. Judge whether line segment corresponds to the method for stylus pen tip 2. according to claim 1, which is characterized in that wherein when When the first slope is greater than the slope critical value, then judge whether the length of the line segment is less than length critical value；And work as When the length of the line segment is less than the length critical value, assert that the line segment is corresponding to the stylus pen tip.
3. Judge whether line segment corresponds to the method for stylus pen tip 3. according to claim 1, which is characterized in that wherein when When the first slope is less than the slope critical value, assert that the line segment is corresponding to the conductive object to suspend.
4. Judge whether line segment corresponds to the method for stylus pen tip 4. a kind of, which is characterized in that comprise the steps of:

   Obtain line segment range multiple touching signals values accordingly；

   Calculate the first slope and the second slope of the line segment volume edges；

   Judge whether the first slope and the second slope are both greater than slope critical value；And

   When the first slope and second slope are both greater than the slope critical value, assert that the line segment is corresponding to the stylus pen Point.
5. Judge whether line segment corresponds to the method for stylus pen tip 5. according to claim 4, which is characterized in that wherein when When the first slope and the second slope are both greater than slope critical value, then to judge whether the length of the line segment is less than length critical Value；And when the length of the line segment is less than the length critical value, assert that the line segment is corresponding to the stylus pen tip.
6. Judge whether line segment corresponds to the method for stylus pen tip 6. according to claim 4, which is characterized in that wherein when When the first slope and second slope are both less than the slope critical value, assert that the line segment is corresponding to the conductive object to suspend.
7. Judge whether line segment corresponds to the method for stylus pen tip 7. a kind of, which is characterized in that comprise the steps of:

   Judge whether the length of the line segment is less than length critical value；And

   When the length of the line segment is less than the length critical value, assert that the line segment is corresponding to the stylus pen tip.
8. Judge whether line segment corresponds to the method for the pen tip of touch-control 8. according to claim 7, which is characterized in that more wrap Containing following steps:

   When the length of the line segment is less than the length critical value, the line segment range multiple touching signals values accordingly are obtained；With And

   Following first step combination or second step combination:

   First step combination:

   Calculate the first slope of the line segment volume edges；

   Judge whether the first slope is greater than slope critical value；And

   When the first slope is greater than the slope critical value, assert that the line segment is corresponding to the stylus pen tip；

   Second step combination:

   Calculate the first slope and the second slope of the line segment volume edges；

   Judge whether the first slope and second slope are both greater than slope critical value；And

   When the first slope and the second slope are both greater than the slope critical value, assert that the line segment is corresponding to the stylus pen tip.
9. Judge whether line segment corresponds to the method for the pen tip of touch-control 9. according to claim 7, which is characterized in that when this When the length of line segment is greater than the length critical value, the corresponding conductive object to the suspension of the line segment is assert.
10. 10. it is a kind of judge line segment whether correspond to the device of stylus pen tip, characterized by comprising:

    Obtain the device of line segment range multiple touching signals values accordingly；

    Calculate the device of the first slope of the line segment volume edges；

    Judge whether the first slope is greater than the device of slope critical value；And

    When the first slope is greater than the slope critical value, the corresponding device to the stylus pen tip of the line segment is assert.
11. Judge whether line segment corresponds to the device of stylus pen tip 11. according to claim 10, which is characterized in that it is more Comprising then judging whether the length of the line segment is less than the dress of length critical value when the first slope is greater than slope critical value It sets；And when the length of the line segment is less than the length critical value, the corresponding device to the stylus pen tip of the line segment is assert.
12. Judge whether line segment corresponds to the device of stylus pen tip 12. according to claim 10, which is characterized in that it is more Comprising when the first slope is less than the slope critical value, assert the corresponding device to the conductive object to suspend of the line segment.
13. Judge whether line segment corresponds to the device of stylus pen tip 13. a kind of, which is characterized in that it includes following devices:

    Obtain the device of line segment range multiple touching signals values accordingly；

    Calculate the first slope of the line segment volume edges and the device of the second slope；

    Judge whether the first slope and the second slope are both greater than the device of slope critical value；And

    When the first slope and second slope are both greater than the slope critical value, assert that the line segment is corresponding to the stylus pen tip Device.
14. Judge whether line segment corresponds to the device of stylus pen tip 14. according to claim 13, which is characterized in that it is more Comprising when the first slope and the second slope are both greater than the slope critical value, then judge whether the length of the line segment is less than The device of length critical value；And when the length of the line segment is less than the length critical value, assert that the line segment is corresponding to the touch-control The device of pen tip.
15. Judge whether line segment corresponds to the device of stylus pen tip 15. according to claim 13, which is characterized in that it is more Comprising when the first slope is both less than the slope critical value with second slope, assert that the line segment is corresponding right to the conduction to suspend The device of elephant.
16. Judge whether line segment corresponds to the device of stylus pen tip 16. a kind of, which is characterized in that it includes following devices:

    Judge whether the length of the line segment is less than the device of length critical value；And

    When the length of the line segment is less than the length critical value, the corresponding device to the stylus pen tip of the line segment is assert.
17. Judge whether line segment corresponds to the device of stylus pen tip 17. according to claim 16, which is characterized in that it is more Include:

    When the length of the line segment is less than length critical value, the dress of the line segment range multiple touching signals values accordingly is obtained It sets, which includes the combination of following first device or second device combination:

    First device combination:

    Calculate the device of the first slope of the line segment volume edges；

    Judge whether the first slope is greater than the device of slope critical value；And

    When the first slope is greater than the slope critical value, the corresponding device to the stylus pen tip of the line segment is assert；

    Second device combination:

    Calculate the first slope of the line segment volume edges and the device of the second slope；

    Judge whether the first slope and second slope are both greater than the device of slope critical value；And

    When the first slope and the second slope are both greater than the slope critical value, assert that the line segment is corresponding to the stylus pen tip Device.
18. Judge whether line segment corresponds to the device of stylus pen tip 18. according to claim 16, which is characterized in that it is more Comprising assert the device of the corresponding conductive object to the suspension of the line segment when the length of the line segment is greater than the length critical value.