CN106484184A - Touch screen and its recognition methodss - Google Patents
Touch screen and its recognition methodss Download PDFInfo
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- CN106484184A CN106484184A CN201610873733.5A CN201610873733A CN106484184A CN 106484184 A CN106484184 A CN 106484184A CN 201610873733 A CN201610873733 A CN 201610873733A CN 106484184 A CN106484184 A CN 106484184A
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- China
- Prior art keywords
- touch
- peak value
- writing
- brushstyle
- tip
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
Abstract
The invention discloses a kind of touch screen and its recognition methodss, described touch screen includes drive electrode and induction electrode, and according to the related induced signal detection touch action of the mutual capacitance between drive electrode and induction electrode, methods described includes：The peak value of search induced signal；Peak value according to described induced signal carries out classification and obtains peak value type；And touch type is judged according to peak value type, its can only use started writing in the case of complete to finger touch action and tip of the brushstyle of a writing or painting touch action identification.
Description
Technical field
The present invention relates to touch screen field, more particularly, to a kind of touch screen and its recognition methodss.
Background technology
In prior art, touch screen is in order to realize the identification to finger and felt pen it is necessary to the capacitance pen tip of the brushstyle of a writing or painting can be beaten
Go out pumping signal, by the identification finishing receiving to finger and felt pen to described pumping signal.This requires used
The capacitance pen tip of the brushstyle of a writing or painting add extra chip, pumping signal is produced with this, this namely common at present joining with touch control device
The condenser type active pen that set uses.
But, active pen needs by adding extra chip, and the synchronous ability of touch chip realizing touch control device is normal
Work, increased production cost, is unfavorable for popularizing of product.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of touch screen and its recognition methodss, and it can solve to be real at present
The existing identification to finger and felt pen for the touch screen, can only add the problem of the cost increase that extra chips are carried in pointer.
In order to solve above-mentioned technical problem, a first aspect of the present invention provides a kind of recognition methodss of touch screen, described
Touch screen includes drive electrode and induction electrode, and according to the related sense of the mutual capacitance between drive electrode and induction electrode
Induction signal detects touch action, and methods described includes：The peak value of search induced signal；Peak value according to described induced signal is carried out
Classification obtains peak value type；And touch type is judged according to peak value type.
Preferably, described detection search includes：Obtain the time dependent curve of induced signal；And on described curve
The peak value of search induced signal.
Preferably, described classification includes：When the peak value of described induced signal is more than or equal to first threshold, described peak value class
Type touches peak value for finger；When the peak value of described induced signal is less than first threshold and is more than or equal to Second Threshold, described peak
Value Types touch peak value for the tip of the brushstyle of a writing or painting, and described first threshold is more than described Second Threshold；When the peak value of described induced signal is less than the
During two threshold values, described peak value type is invalid peak value.
Preferably, also include, classified according to peak value type and statistical result, described statistics includes：To dissimilar
The peak value of induced signal counted.
Preferably, touch type is judged according to described statistical result.
Preferably, described judge process also includes false action-proof judgement, and described false action-proof judges corresponding to for preventing by mistake
Erroneous effects that action judges to touch type and the detection search of confirmatory that the peak value of induced signal is repeated, are sentencing
During disconnected, the classified statistic result searching for the peak value of the induced signal obtaining after testing meets the classification to touch type all the time
Condition, described false action-proof judges that judged result is effective, conversely, described false action-proof judges that judged result is invalid.
Preferably, when current state is original state, if described finger touches, peak value statistical number is zero and the described tip of the brushstyle of a writing or painting touches
Touching peak value statistical number is zero, and described current state is no touch state, and wherein, described original state is no touch state.
Preferably, when described current state is no touch state, if described finger touches peak value statistical number and is more than zero and institute
State the tip of the brushstyle of a writing or painting and touch peak value statistical number equal to zero, described false action-proof judges to repeat to judge that number of times corresponds to more than or equal to the 3rd threshold value,
Described false action-proof judge judged result for effective when, judge described current state by no touch State Transferring be finger touch shape
State, described false action-proof judge judged result for invalid when, judge this exercise void, described current state is maintained as oncontacting
Touch state, an action is judged as that touch operation need to repeat to the peak value of induced signal to confirm by described 3rd threshold value correspondence
Property detection search minimum number.
Preferably, described current state be finger touch status when, if described finger touch peak value statistical number be equal to zero and
The described tip of the brushstyle of a writing or painting touches peak value statistical number and is equal to zero, and described false action-proof judges to repeat to judge that number of times corresponds to more than or equal to the 4th threshold
Value, described false action-proof judge judged result for effective when, judge that described current state is converted to oncontacting by finger touch status
Touch state, described false action-proof judge judged result for invalid when, judge this exercise void, described current state is maintained as
Finger touch status, described 4th threshold value correspondence by an action be judged as lifting operation the peak value of induced signal need to be repeated into
The minimum number of the detection search of row confirmatory.
Preferably, when finger carries out touch operation to described touch screen first, terminate to advance in described finger touch operation
The tip of the brushstyle of a writing or painting touch operation of row is shielded.
Preferably, when described current state remains finger touch status, described finger touches peak value and has been marked as
Effect, it is invalid that described tip of the brushstyle of a writing or painting touch peak value is marked as.
Preferably, when described current state is no touch state, if described finger touches peak value statistical number and is equal to zero and institute
State the tip of the brushstyle of a writing or painting and touch peak value statistical number more than zero, described false action-proof judges to repeat to judge that number of times corresponds to more than or equal to the 3rd threshold value,
Described false action-proof judge judged result for effective when, judge described current state by no touch State Transferring be the tip of the brushstyle of a writing or painting touch shape
State, described false action-proof judge judged result for invalid when, judge this exercise void, described current state is maintained as oncontacting
Touch state, an action is judged as that touch operation need to repeat to the peak value of induced signal to confirm by described 3rd threshold value correspondence
Property detection search minimum number.
Preferably, described current state be the tip of the brushstyle of a writing or painting touch condition when, if described finger touch peak value statistical number be equal to zero and
The described tip of the brushstyle of a writing or painting touches peak value statistical number and is equal to zero, and described false action-proof judges to repeat to judge that number of times corresponds to more than or equal to the 4th threshold
Value, described false action-proof judge judged result for effective when, judge that described current state is converted to oncontacting by tip of the brushstyle of a writing or painting touch condition
Touch state, described false action-proof judge judged result for invalid when, judge this exercise void, described current state is maintained as
Tip of the brushstyle of a writing or painting touch condition, described 4th threshold value correspondence by an action be judged as lifting operation the peak value of induced signal need to be repeated into
The minimum number of the detection search of row confirmatory.
Preferably, when the tip of the brushstyle of a writing or painting carries out touch operation to described touch screen first, before described tip of the brushstyle of a writing or painting touch operation terminates
The finger touch operation carrying out is shielded.
Preferably, when described current state is tip of the brushstyle of a writing or painting touch condition, the described tip of the brushstyle of a writing or painting touches peak value and is marked as effectively, institute
State finger touch peak value be marked as invalid.
Preferably, when described current state is no touch state, if described finger touches peak value statistical number and is more than zero and institute
State the tip of the brushstyle of a writing or painting and touch peak value statistical number more than zero, determination methods and described finger touch peak value statistical number more than zero and the described tip of the brushstyle of a writing or painting touches
Identical when touching peak value statistical number equal to zero.
Preferably, when finger and the tip of the brushstyle of a writing or painting carry out touch operation to described touch screen, in described finger touch operation knot simultaneously
The tip of the brushstyle of a writing or painting touch operation carrying out before bundle is shielded.
A second aspect of the present invention provides a kind of touch screen, and described touch screen includes：Induction module, described induction module
Scanned for for detecting to described induced signal and to the peak value of the described induced signal that detection obtains；And identification mould
Block, described identification module judges to current state according to the peak value of described induced signal, and wherein said identification module includes：
Classified statistic module, described classified statistic module is used for the peak value of described induced signal is carried out with classification acquisition peak value type, and
The peak value of different types of induced signal is counted, obtains statistical result；And judge module, described statistical module according to
Current state is judged as one of finger touch status, tip of the brushstyle of a writing or painting touch condition and no touch state by described statistical result.
Using after technical scheme it is not necessary to extra chip is installed in felt pen it is only necessary to one touch
Touch chip in screen just can realize the identification for finger and felt pen for the touch screen, has saved production cost, is conducive to producing
The popularizing of product.
Brief description
By the description to inventive embodiments referring to the drawings, the above-mentioned and other purposes of the present invention, feature and excellent
Point will be apparent from, in the accompanying drawings：
Fig. 1 illustrates the flow chart that the original state that first embodiment of the invention provides is recognition methodss during no touch state.
Fig. 2 illustrates the particular flow sheet of the first judge process in Fig. 1.
Fig. 3 illustrates the particular flow sheet of the second judge process in Fig. 1.
Fig. 4 illustrates the flow process that the current state that first embodiment of the invention provides is recognition methodss during finger touch status
Figure.
Fig. 5 illustrates the flow process that the current state that first embodiment of the invention provides is recognition methodss during tip of the brushstyle of a writing or painting touch condition
Figure.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
Literary composition in the detailed description of the embodiment of the present invention, detailed describe some specific detail sections, those skilled in the art are come
Say that the description of part without these details can also understand the present invention completely.In order to avoid obscuring the essence of the present invention, known
Method, process, flow process do not describe in detail.
In various figures, identical element to be represented using similar reference.For the sake of clarity, in accompanying drawing
Various pieces are not necessarily to scale.Additionally, may not shown some known parts in figure.Flow chart in accompanying drawing, frame
Figure illustrates system, method, the possible System Framework of device, function and the operation of embodiments of the invention, the square frame of accompanying drawing
And square frame order is used only to preferably illustrate process and the step of embodiment, and should not be in this, as the limit to invention itself
System.In the first embodiment of the present invention, there is provided a kind of recognition methodss of touch screen, it can not need in felt pen
In the case of adding extra chips, only rely on algorithm and complete the identification to finger touch action and tip of the brushstyle of a writing or painting touch action.
It is understood that in the present embodiment, by the sensor of setting in described touch screen in screen ranges with
The related induced signal of mutual capacitance between drive electrode and induction electrode is detected, thus obtains induced signal anaplasia at any time
Change curve, and on this basis to described curve peak value scan for.
Complete the peak value to described induced signal detection search after, next the classification of the peak value according to induced signal with
Obtain peak value type.
Sensing letter obtained by searching for after testing during due to finger touch status, tip of the brushstyle of a writing or painting touch condition and no touch state
Number peak value difference substantially, according to the analytical calculation to experiment the data obtained, we determined that two classification thresholds, respectively the
One threshold value and Second Threshold, described first threshold is more than described Second Threshold.
When the peak value of described induced signal is more than or equal to first threshold, described peak value type touches peak value for finger；When
When the peak value of described induced signal is less than first threshold and is more than or equal to Second Threshold, described peak value type is that the tip of the brushstyle of a writing or painting touches peak
Value；When the peak value of described induced signal is less than Second Threshold, described peak value type is invalid peak value.
Next, touch type is judged according to different types of statistical result.
Specifically refer to Fig. 1 to Fig. 3, Fig. 1 illustrates that the original state that first embodiment of the invention provides is no touch state
When recognition methodss flow chart.Fig. 2 illustrates the particular flow sheet of the first judge process in Fig. 1.Fig. 3 illustrates the second judgement in Fig. 1
The particular flow sheet of process.
In the first embodiment of the present invention, after the completion of finger touch action/tip of the brushstyle of a writing or painting touch condition, described current state
First no touch state must be converted to by finger touch status/tip of the brushstyle of a writing or painting touch condition, described touch screen could touch behaviour to next
It is identified, thus, it is identified the narration of method flow with no touch state for original state.
As shown in figure 1, when described original state is no touch state, the touch screen that the present embodiment first embodiment is provided
Recognition methodss include step S110, S120 and S130.
In step s 110, judge that finger touches whether peak value statistical number is more than zero, if it is, execution first judged
Journey S120, if it is not, then execution the second judge process S130.
Further, as shown in Fig. 2 described first judge process S120 includes step S121-S123.
When finger touches peak value statistical number and is more than zero, in step S121, judge whether the tip of the brushstyle of a writing or painting touches peak value statistical number
More than zero, if it is, execution step S122, if it is not, then execution step S123.
In step S122, judge that false action-proof judges whether judged result is effective, enters to the peak value of induced signal
Row repeated detection is searched for, and the described finger that multiple classified statistic is obtained touches peak value statistical number and the tip of the brushstyle of a writing or painting touches peak value statistics
Number is confirmed respectively, prevents the erroneous effects that misoperation brings to the judgement of touch type.
During repeated detection search is carried out to the peak value of induced signal, if obtained difference after multiple classified statistic
Type statistics number meets situation described previously all the time, that is, meet finger touch peak value statistical number and be more than zero and tip of the brushstyle of a writing or painting touch peak value system
Count the class condition more than zero, described false action-proof judges that judged result is effective, if carrying out in the peak value to induced signal
In repeated detection search procedure, at a time, obtained dissimilar statistical number after classified statistic has been unsatisfactory for institute above
State situation, that is, be unsatisfactory for finger and touch the class condition that peak value statistical number is more than zero and tip of the brushstyle of a writing or painting touch peak value statistical number is more than zero,
Described false action-proof judges that judged result is invalid.
Wherein, the number of times that the peak value of induced signal is repeated with the detection search of confirmatory corresponds to more than or equal to the 3rd threshold
Value, described 3rd threshold value corresponds to and for an action to be judged as that touch operation need to repeat confirmatory to the peak value of induced signal
Detection search minimum number.It should be noted that described 3rd threshold value is more than or equal to 1.
If it is, in the recognition methodss of the touch screen that first embodiment of the invention is provided, touching peak value for finger
Statistical number is more than zero and the tip of the brushstyle of a writing or painting touches peak value statistical number more than zero, and that is, tip of the brushstyle of a writing or painting touch action and finger touch action are simultaneous
Current state is preferentially judged as finger touch status by situation, and described current state is touched for finger by no touch State Transferring
State.
Current state is judged as after finger touch status, is detected that the finger searching touches peak value mark in the process
It is designated as effectively, being detected that the tip of the brushstyle of a writing or painting peak markers searching are invalid in the process, and foundation being labeled as effectively described handss
Refer to touch peak value and carry out coordinate calculating, that is, in the process, only finger touch action is identified, by tip of the brushstyle of a writing or painting touch operation screen
Cover.
If it is not, then this time action is judged as invalid, current state is maintained as no touch state.
In step S123, judge that false action-proof judges whether judged result is effective, enters to the peak value of induced signal
Row repeated detection is searched for, and the described finger that multiple classified statistic is obtained touches peak value statistical number and the tip of the brushstyle of a writing or painting touches peak value statistics
Number is confirmed respectively, prevents the erroneous effects that misoperation brings to the judgement of touch type.
During repeated detection search is carried out to the peak value of induced signal, if obtained difference after multiple classified statistic
Type statistics number meets situation described previously all the time, that is, meet finger touch peak value statistical number and be more than zero and tip of the brushstyle of a writing or painting touch peak value system
Count the class condition being not more than zero, described false action-proof judges that judged result is effective, if entering in the peak value to induced signal
In row repeated detection search procedure, at a time, obtained dissimilar statistical number after classified statistic has been unsatisfactory for above
Described situation, that is, be unsatisfactory for finger and touch the classification bar that peak value statistical number is more than zero and tip of the brushstyle of a writing or painting touch peak value statistical number no more than zero
Part, described false action-proof judges that judged result is invalid.
Wherein, the number of times that the peak value of induced signal is repeated with the detection search of confirmatory corresponds to more than or equal to the 3rd threshold
Value, described 3rd threshold value corresponds to and for an action to be judged as that touch operation need to repeat confirmatory to the peak value of induced signal
Detection search minimum number.It should be noted that described 3rd threshold value is more than or equal to 1.
If it is, described current state is finger touch status by no touch State Transferring.Current state is judged as handss
After referring to touch condition, it is effective for being detected that the finger searching touches peak markers in the process, and effective according to being labeled as
Described finger touch peak value and carry out coordinate calculating.
If it is not, then current state is maintained as no touch state.
Further, as shown in figure 3, the second judge process S130 includes step S131-S132.
When finger touches peak value statistical number and is not more than zero, in step S131, judge that the tip of the brushstyle of a writing or painting touches peak value statistical number and is
No it is more than zero, if it is, execution step S132, if it is not, then current state is maintained as no touch state.
In step S132, judge that false action-proof judges whether judged result is effective, enters to the peak value of induced signal
Row repeated detection is searched for, and the described finger that multiple classified statistic is obtained touches peak value statistical number and the tip of the brushstyle of a writing or painting touches peak value statistics
Number is confirmed respectively, prevents the erroneous effects that misoperation brings to the judgement of touch type.
During repeated detection search is carried out to the peak value of induced signal, if obtained difference after multiple classified statistic
Type statistics number meets situation described previously all the time, that is, meet finger and touch peak value statistical number no more than zero and tip of the brushstyle of a writing or painting touch peak value
The class condition that statistical number is more than zero, described false action-proof judges that judged result is effective, if entering in the peak value to induced signal
In row repeated detection search procedure, at a time, obtained dissimilar statistical number after classified statistic has been unsatisfactory for above
Described situation, that is, be unsatisfactory for finger and touch the classification bar that peak value statistical number no more than zero and tip of the brushstyle of a writing or painting touch peak value statistical number are more than zero
Part, described false action-proof judges that judged result is invalid.
Wherein, the number of times that the peak value of induced signal is repeated with the detection search of confirmatory corresponds to more than or equal to the 3rd threshold
Value, described 3rd threshold value corresponds to and for an action to be judged as that touch operation need to repeat confirmatory to the peak value of induced signal
Detection search minimum number.It should be noted that described 3rd threshold value is more than or equal to 1.
If it is, described current state is tip of the brushstyle of a writing or painting touch condition by no touch State Transferring.Current state is judged as pen
After the touch condition of end, it is effective for being detected that the tip of the brushstyle of a writing or painting searching touches peak markers in the process, and effective according to being labeled as
The described tip of the brushstyle of a writing or painting touch peak value and carry out coordinate calculating.
If it is not, then this time action is judged as invalid, current state is maintained as no touch state.
Fig. 4 illustrates the flow process that the current state that first embodiment of the invention provides is recognition methodss during finger touch status
Figure.As shown in figure 4, after current state is judged as finger touch status, judge process thereafter includes step S401-
S403.
In step S401, judge that finger touches whether peak value statistical number is more than zero.
If it is, due in the first embodiment of the present invention, current state being judged as after finger touch status, here
During secondary finger touch action continues, during that is, described finger touch peak value statistical number is persistently remained above zero, that is,
The tip of the brushstyle of a writing or painting is made to have carried out touch operation to touch screen, this time tip of the brushstyle of a writing or painting touch operation is also shielded, that is, described current state is touched for finger
When touching state, during described current state remains continuously finger touch status, will detect in the process and search
Finger to touch peak markers be effective, detected that the tip of the brushstyle of a writing or painting peak markers that search are invalid in the process, and foundation marked
It is designated as effectively described finger touch peak value and carries out coordinate calculating, thus front state is maintained as finger touch status.
If it is not, then execution step S402.
In step S402, judge that the tip of the brushstyle of a writing or painting touches whether peak value statistical number is more than zero.
If it is, due in the first embodiment of the present invention, after the completion of finger touch action, described current state must
First no touch state must be converted to by finger touch status, described touch screen could be identified to next touch operation, and
In practical application, complete touch action in finger and the tip of the brushstyle of a writing or painting starts to certainly exist a time interval between touch action, even if
Very short every the time, but this time interval is still objective reality, and therefore this kind of situation is invalid.
If it is not, then execution step S403.
In step S403, judge that false action-proof judges that whether effectively judged result, is carried out to the peak value of induced signal
Repeated detection is searched for, and the described finger that multiple classified statistic is obtained touches peak value statistical number and the tip of the brushstyle of a writing or painting touches peak value statistical number
Confirmed respectively, prevented the erroneous effects that misoperation brings to the judgement of touch type.
During repeated detection search is carried out to the peak value of induced signal, if obtained difference after multiple classified statistic
Type statistics number meets situation described previously all the time, that is, meet finger and touch peak value statistical number no more than zero and tip of the brushstyle of a writing or painting touch peak value
Statistical number is not more than zero class condition, and described false action-proof judges that judged result is effective, if in the peak value to induced signal
Carry out in repeated detection search procedure, at a time, before after classified statistic, obtained dissimilar statistical number is unsatisfactory for
Civilian described situation, that is, be unsatisfactory for finger touch peak value statistical number no more than zero and the tip of the brushstyle of a writing or painting touch dividing of peak value statistical number no more than zero
Class condition, described false action-proof judges that judged result is invalid.
Wherein, the number of times that the peak value of induced signal is repeated with the detection search of confirmatory corresponds to more than or equal to the 4th threshold
Value, described 4th threshold value corresponds to and for an action to be judged as that lifting operation need to repeat confirmatory to the peak value of induced signal
Detection search minimum number.It should be noted that described 4th threshold value is more than or equal to 1, and described 3rd threshold value and described
4th threshold value is generally unequal.
If it is, described current state is converted to no touch state by finger touch status.
If it is not, then current state is maintained as finger touch status.
Fig. 5 illustrates the flow process that the current state that first embodiment of the invention provides is recognition methodss during tip of the brushstyle of a writing or painting touch condition
Figure.As shown in figure 5, after current state is judged as tip of the brushstyle of a writing or painting touch condition, judge process thereafter includes step S501-
S503.
In step S501, judge that the tip of the brushstyle of a writing or painting touches whether peak value statistical number is more than zero.
If it is, due in the first embodiment of the present invention, current state being judged as after tip of the brushstyle of a writing or painting touch condition, here
During secondary tip of the brushstyle of a writing or painting touch action continues, during that is, described tip of the brushstyle of a writing or painting touch peak value statistical number is persistently remained above zero, that is,
Finger is made to have carried out touch operation to touch screen, this time finger touch operation is also shielded, that is, described current state is touched for the tip of the brushstyle of a writing or painting
When touching state, during described current state remains continuously tip of the brushstyle of a writing or painting touch condition, will detect in the process and search
The tip of the brushstyle of a writing or painting to touch peak markers be effective, detected that the finger peak markers that search are invalid in the process, and foundation marked
It is designated as effectively described tip of the brushstyle of a writing or painting touch peak value and carries out coordinate calculating, thus current state is maintained as tip of the brushstyle of a writing or painting touch condition.
If it is not, then execution step S502.
In step S502, judge that finger touches whether peak value statistical number is more than zero.
If it is, due in the first embodiment of the present invention, after the completion of tip of the brushstyle of a writing or painting touch action, described current state must
First no touch state must be converted to by tip of the brushstyle of a writing or painting touch condition, described touch screen could be identified to next touch operation, and
In practical application, complete touch action in the tip of the brushstyle of a writing or painting and finger starts to certainly exist a time interval between touch action, even if
Very short every the time, but this time interval is still objective reality, and therefore this kind of situation is invalid.
If it is not, then execution step S503.
In step S503, judge that false action-proof judges that whether effectively judged result, is carried out to the peak value of induced signal
Repeated detection is searched for, and the described finger that multiple classified statistic is obtained touches peak value statistical number and the tip of the brushstyle of a writing or painting touches peak value statistical number
Confirmed respectively, prevented the erroneous effects that misoperation brings to the judgement of touch type.
During repeated detection search is carried out to the peak value of induced signal, if obtained difference after multiple classified statistic
Type statistics number meets situation described previously all the time, that is, meet finger and touch peak value statistical number no more than zero and tip of the brushstyle of a writing or painting touch peak value
Statistical number is not more than zero class condition, and described false action-proof judges that judged result is effective, if in the peak value to induced signal
Carry out in repeated detection search procedure, at a time, before after classified statistic, obtained dissimilar statistical number is unsatisfactory for
Civilian described situation, that is, be unsatisfactory for finger touch peak value statistical number no more than zero and the tip of the brushstyle of a writing or painting touch dividing of peak value statistical number no more than zero
Class condition, described false action-proof judges that judged result is invalid.
Wherein, the number of times that the peak value of induced signal is repeated with the detection search of confirmatory corresponds to more than or equal to the 4th threshold
Value, described 4th threshold value corresponds to and for an action to be judged as that lifting operation need to repeat confirmatory to the peak value of induced signal
Detection search minimum number.It should be noted that described 3rd threshold value is more than or equal to 1, and described 3rd threshold value and described
4th threshold value is generally unequal.
If it is, described current state is converted to no touch state by tip of the brushstyle of a writing or painting touch condition.
If it is not, then current state is maintained as tip of the brushstyle of a writing or painting touch condition.
In the second embodiment of the present invention, there is provided a kind of touch screen, described touch screen includes two main modular, point
It is not induction module and identification module.In the touch screen that the present embodiment is provided, described identification module passes through described touch screen
The sensor of the middle setting induced signal related to the mutual capacitance between drive electrode and induction electrode in screen ranges is carried out
Detection, thus obtains the time dependent curve of induced signal, and on this basis to described curve peak value scan for.
The peak value that described identification module is used for according to the induced signal obtaining is searched in the detection of described induction module is sentenced to current state
Disconnected.Specifically, described identification module includes classified statistic module and judge module.Wherein, described classified statistic module is used for
Classification acquisition peak value type is carried out to the peak value of described induced signal, and the peak value of different types of induced signal is counted
Number, obtains statistical result；Current state is judged as finger touch status, the tip of the brushstyle of a writing or painting according to described statistical result by described statistical module
One of touch condition and no touch state.The concrete recognition methodss of identification module refer to first embodiment of the invention and carry
For touch screen recognition methodss, be not repeated herein describe.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or deposit between operating
In any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant are intended to
Comprising of nonexcludability, wants so that including a series of process of key elements, method, article or equipment and not only including those
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element that limited by sentence "including a ..." it is not excluded that
Also there is other identical element including in the process of described key element, method, article or equipment.
According to embodiments of the invention as described above, these embodiments do not have all of details of detailed descriptionthe, not yet
Limit the specific embodiment that this invention is only described.Obviously, as described above, can make many modifications and variations.This explanation
Book is chosen and is specifically described these embodiments, is to preferably explain the principle of the present invention and practical application, so that affiliated
Technical field technical staff can utilize the present invention and modification on the basis of the present invention to use well.The present invention is only subject to right
Claim and its restriction of four corner and equivalent.
Claims (18)
1. a kind of recognition methodss of touch screen, described touch screen includes drive electrode and induction electrode, and according to electric with driving
The related induced signal detection touch action of mutual capacitance between pole and induction electrode is it is characterised in that methods described includes：
The peak value of search induced signal；
Peak value according to described induced signal carries out classification and obtains peak value type；And
Touch type is judged according to peak value type.
2. recognition methodss according to claim 1 are it is characterised in that described detection search includes：
Obtain the time dependent curve of induced signal；And
The peak value of induced signal is searched on described curve.
3. recognition methodss according to claim 1 are it is characterised in that described classification includes：
When the peak value of described induced signal is more than or equal to first threshold, described peak value type touches peak value for finger；
When the peak value of described induced signal is less than first threshold and is more than or equal to Second Threshold, described peak value type is touched for the tip of the brushstyle of a writing or painting
Touch peak value, described first threshold is more than described Second Threshold；
When the peak value of described induced signal is less than Second Threshold, described peak value type is invalid peak value.
4. recognition methodss according to claim 1, it is characterised in that also including, are entered according to peak value type and statistical result
Row classification, described statistics includes：The peak value of different types of induced signal is counted.
5. recognition methodss according to claim 4 are it is characterised in that judge touch type according to described statistical result.
6. recognition methodss according to claim 5 it is characterised in that described judge process also include false action-proof judge,
Described false action-proof judge corresponding to, for prevent erroneous effects that misoperation judges to touch type and the peak value to induced signal
The detection search of the confirmatory repeating, in judge process, searches for the classification of the peak value of the induced signal obtaining after testing
Statistical result meets the class condition to touch type all the time, and described false action-proof judges that judged result is effective, conversely, described
False action-proof judges that judged result is invalid.
7. recognition methodss according to claim 5 it is characterised in that current state be original state when, if described finger
Touch peak value statistical number is zero and described tip of the brushstyle of a writing or painting touch peak value statistical number is zero, and described current state is no touch state, wherein,
Described original state is no touch state.
8. recognition methodss according to claim 6 it is characterised in that described current state be no touch state when, if institute
State finger touch peak value statistical number more than zero and the described tip of the brushstyle of a writing or painting touches peak value statistical number and is equal to zero, described false action-proof judges repetition
Judge that number of times is corresponding and be more than or equal to the 3rd threshold value, described false action-proof judge judged result for effective when, judge described current shape
State by no touch State Transferring be finger touch status, described false action-proof judge judged result be invalid when, judge this move
It is invalid to make, and described current state is maintained as no touch state, and an action is judged as touching behaviour by described 3rd threshold value correspondence
Work need to repeat the minimum number of the detection search of confirmatory to the peak value of induced signal.
9. recognition methodss according to claim 8 it is characterised in that described current state be finger touch status when, if
Described finger touches peak value statistical number equal to zero and the described tip of the brushstyle of a writing or painting touches peak value statistical number and is equal to zero, and described false action-proof judges weight
Judge that number of times is corresponding again and be more than or equal to the 4th threshold value, described false action-proof judge judged result for effective when, judge described currently
State is converted to no touch state by finger touch status, described false action-proof judge judged result for invalid when, judge this time
Exercise void, described current state is maintained as finger touch status, and an action is judged as lifting by described 4th threshold value correspondence
Play the minimum number that operation need to repeat the detection search of confirmatory to the peak value of induced signal.
10. recognition methodss according to claim 8 are it is characterised in that finger carries out to described touch screen touching behaviour first
When making, the tip of the brushstyle of a writing or painting touch operation carrying out before described finger touch operation terminates is shielded.
11. recognition methodss according to claim 10 touch shape it is characterised in that remaining finger in described current state
During state, described finger touches peak value and is marked as effectively, and it is invalid that described tip of the brushstyle of a writing or painting touch peak value is marked as.
12. recognition methodss according to claim 7 it is characterised in that described current state be no touch state when, if institute
State finger touch peak value statistical number equal to zero and the described tip of the brushstyle of a writing or painting touches peak value statistical number and is more than zero, described false action-proof judges repetition
Judge that number of times is corresponding and be more than or equal to the 3rd threshold value, described false action-proof judge judged result for effective when, judge described current shape
State by no touch State Transferring be tip of the brushstyle of a writing or painting touch condition, described false action-proof judge judged result be invalid when, judge this move
It is invalid to make, and described current state is maintained as no touch state, and an action is judged as touching behaviour by described 3rd threshold value correspondence
Work need to repeat the minimum number of the detection search of confirmatory to the peak value of induced signal.
13. recognition methodss according to claim 12 it is characterised in that described current state be the tip of the brushstyle of a writing or painting touch condition when,
If described finger touches, peak value statistical number is equal to zero and the described tip of the brushstyle of a writing or painting touches peak value statistical number equal to zero, and described false action-proof judges
Repeat to judge that number of times is corresponding and be more than or equal to the 4th threshold value, described false action-proof judges judged result when being effective, judge described in ought
Front state is converted to no touch state by tip of the brushstyle of a writing or painting touch condition, described false action-proof judge judged result for invalid when, judge this
Secondary exercise void, described current state is maintained as tip of the brushstyle of a writing or painting touch condition, and an action is judged as by described 4th threshold value correspondence
Lift the minimum number that operation need to repeat the detection search of confirmatory to the peak value of induced signal.
14. recognition methodss according to claim 12 are it is characterised in that the tip of the brushstyle of a writing or painting carries out to described touch screen touching behaviour first
When making, the finger touch operation carrying out before described tip of the brushstyle of a writing or painting touch operation terminates is shielded.
15. recognition methodss according to claim 14 are it is characterised in that be tip of the brushstyle of a writing or painting touch condition in described current state
When, the described tip of the brushstyle of a writing or painting touches peak value and is marked as effectively, and it is invalid that described finger touch peak value is marked as.
16. recognition methodss according to claim 7 it is characterised in that described current state be no touch state when, if institute
State finger touch peak value statistical number more than zero and the described tip of the brushstyle of a writing or painting touches peak value statistical number and is more than zero, determination methods are tactile with described finger
Touch peak value statistical number be more than zero and the described tip of the brushstyle of a writing or painting touch peak value statistical number be equal to zero when identical.
17. recognition methodss according to claim 16 are it is characterised in that finger and the tip of the brushstyle of a writing or painting are carried out to described touch screen simultaneously
During touch operation, the tip of the brushstyle of a writing or painting touch operation carrying out before described finger touch operation terminates is shielded.
A kind of 18. touch screens are it is characterised in that include：
Induction module, described induction module is used for the described induced signal described induced signal being detected and detection being obtained
Peak value scan for；And
Identification module, described identification module judges to current state according to the peak value of described induced signal, wherein
Described identification module includes：
Classified statistic module, described classified statistic module is used for the peak value of described induced signal is carried out with classification acquisition peak value class
Type, and the peak value of different types of induced signal is counted, obtain statistical result；And
Judge module, current state is judged as that finger touch status, the tip of the brushstyle of a writing or painting touch according to described statistical result by described statistical module
Touch one of state and no touch state.
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| CN106484184B (en) | 2019-04-26 |
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