CN106201073A - The signal processing method of a kind of electric capacity touch screen and mobile terminal - Google Patents

The signal processing method of a kind of electric capacity touch screen and mobile terminal Download PDF

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Publication number
CN106201073A
CN106201073A CN201610505346.6A CN201610505346A CN106201073A CN 106201073 A CN106201073 A CN 106201073A CN 201610505346 A CN201610505346 A CN 201610505346A CN 106201073 A CN106201073 A CN 106201073A
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electric capacity
signal
touch screen
capacitance signal
gravity
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CN106201073B (en
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邱贵福
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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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
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

The invention provides the signal processing method of a kind of electric capacity touch screen, belong to mobile communication technology field, solve the signal electric capacity touch screen not produced in prior art and carry out filtration treatment, cause the touch data treatment effeciency to electric capacity touch screen low, and easily produce the problem to mobile terminal maloperation.Described method includes: increase the driving voltage of the transmitting terminal of electric capacity touch screen；Obtain the capacitance signal of each capacitive node in electric capacity touch screen in real time；Determine whether that touch medium moves closer to described electric capacity touch screen according to described capacitance signal, in order to the noise signal in described capacitance signal is carried out shielding processing.By method disclosed by the invention, imminent trigger action can be sensed in advance, identify false triggering the most in advance, improve capacitance signal treatment effeciency.Meanwhile, by advance capacitance signal being carried out shielding processing, decrease owing to data processing method imperfection results in the probability to mobile terminal maloperation.

Description

The signal processing method of a kind of electric capacity touch screen and mobile terminal
Technical field
The present invention relates to mobile communication technology field, particularly relate to signal processing method and the movement of a kind of electric capacity touch screen Terminal.
Background technology
Along with the development of mobile terminal technology, electric capacity touch screen has become as the main flow touch-control input unit of mobile terminal Part.When controlling mobile terminal by being arranged on the electric capacity touch screen on mobile terminal display screen, it is not necessary to by pointer, only need The finger wanting user performs click, press or the operation of the hand capacity touch screen such as touch, and mobile terminal just can pass through capacitive touch The control chip of screen reads corresponding control signal, to realize the manipulation to mobile terminal.
But, along with mobile terminal display screen size is gradually increased, user grips the thumb touching display screen of hands using During upper distance grip position remote position, often occur that thumb refers to root or grips other positions of hands in advance or the most also Contact the situation of electric capacity touch screen, now can read the control signal of mistake from the control chip of electric capacity touch screen.Prior art In, thumb is referred to that the noise signal that other positions of root or gripping hands produce when coming close to or in contact with electric capacity touch screen can not be carried out Detect in advance and process, but noise signal is sent to application layer, application layer processing.
Visible, at least there is following defect when processing the signal of electric capacity touch screen in prior art: not to electric capacity touch screen The signal produced carries out filtration treatment, causes application layer low to the touch data treatment effeciency of electric capacity touch screen, and works as data The maloperation to mobile terminal is easily produced during processing method imperfection.
Summary of the invention
The present invention provides signal processing method and the mobile terminal of a kind of electric capacity touch screen, solves in prior art not to electricity The signal holding touch screen generation carries out filtration treatment, causes application layer low to the touch data treatment effeciency of electric capacity touch screen, and Owing to data processing method imperfection results in the problem to mobile terminal maloperation.
First aspect, embodiments provides the signal processing method of a kind of electric capacity touch screen, is applied to be provided with electricity Hold the mobile terminal of touch screen, including: increase the driving voltage of the transmitting terminal of electric capacity touch screen；Obtain connecing of described electric capacity touch screen in real time The reception signal of receiving end；Transmission signal according to transmitting terminal and the reception signal of receiving terminal, obtain each electric capacity in electric capacity touch screen The capacitance signal of node；Determine whether that touch medium moves closer to described electric capacity touch screen according to described capacitance signal；When described When touch medium moves closer to described electric capacity touch screen, the noise signal in described capacitance signal is carried out shielding processing.
Second aspect, the embodiment of the present invention additionally provides a kind of mobile terminal, and including electric capacity touch screen, described mobile terminal is also Including:
Signal strengthens module, for increasing the driving voltage of the transmitting terminal of electric capacity touch screen；
Signal receiving module, for the reception signal of the receiving terminal of the described electric capacity touch screen of acquisition in real time；
Capacitance signal acquisition module, for the transmission signal according to transmitting terminal and the reception signal of receiving terminal, obtains electric capacity The capacitance signal of each capacitive node in touch screen；
Touch-control judge module, determines whether touch-control for the capacitance signal obtained according to described capacitance signal acquisition module Medium moves closer to described electric capacity touch screen；
Noise processed module, for judging have touch medium to move closer to described electric capacity touch screen when described touch-control judge module Time, the noise signal in described capacitance signal is carried out shielding processing.
The signal processing method of electric capacity touch screen disclosed in the embodiment of the present invention, by increasing driving of the transmitting terminal of electric capacity touch screen Galvanic electricity pressure；Obtain the reception signal of the receiving terminal of described electric capacity touch screen in real time；Signal and receiving terminal is sent according to transmitting terminal Receive signal, obtain the capacitance signal of each capacitive node in electric capacity touch screen；Touch-control is determined whether according to described capacitance signal Medium moves closer to described electric capacity touch screen；When described touch medium moves closer to described electric capacity touch screen, to described capacitance signal In noise signal carry out shielding processing, solve in prior art the signal electric capacity touch screen not produced and carry out at filtration Reason, causes application layer low to the touch data treatment effeciency of electric capacity touch screen, and owing to data processing method imperfection causes Produce the problem to mobile terminal maloperation.By increasing the driving voltage of the transmitting terminal of electric capacity touch screen, can sense in advance Imminent trigger action, can identify false triggering, in advance filtered noise signal the most in advance, improve at capacitance signal Reason efficiency.Meanwhile, by advance capacitance signal being carried out shielding processing, decrease owing to data processing method imperfection causes producing The raw probability to mobile terminal maloperation.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to required in embodiments of the invention The accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the present invention, right From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain according to these accompanying drawings Other accompanying drawing.
Fig. 1 is the signal processing method flow chart of the electric capacity touch screen of the embodiment of the present invention one；
Fig. 2 is the signal processing method flow chart of the electric capacity touch screen of the embodiment of the present invention two；
Fig. 3 is one of capacitance signal schematic diagram of the embodiment of the present invention two acquisition；
Fig. 4 is the two of the capacitance signal schematic diagram that the embodiment of the present invention two obtains；
Fig. 5 is the embodiment of the present invention two marginal area and touch area schematic diagram；
Fig. 6 is the signal processing method flow chart of the electric capacity touch screen of the embodiment of the present invention three；
Fig. 7 is one of structure chart of mobile terminal of the embodiment of the present invention four；
Fig. 8 is the two of the structure chart of the mobile terminal of the embodiment of the present invention four；
Fig. 9 is the three of the structure chart of the mobile terminal of the embodiment of the present invention four；
Figure 10 is the mobile terminal structure figure of the embodiment of the present invention five；
Figure 11 is the mobile terminal structure figure of the embodiment of the present invention six.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is a part of embodiment of the present invention rather than whole embodiments wholely.Based on this Embodiment in bright, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise Example, broadly falls into the scope of protection of the invention.
Embodiment one:
Present embodiments provide the signal processing method of a kind of electric capacity touch screen, be applied to the mobile end with electric capacity touch screen End, as it is shown in figure 1, the method includes: step 100 to step 140.
Step 100, increases the driving voltage of the transmitting terminal of electric capacity touch screen.
In prior art, when finger or touch medium hand capacity touch screen, or and electric capacity touch screen between distance less than 1 During millimeter, the capacitance signal that touch-control on electric capacity touch screen of finger or touch medium produces can be detected, therefore without The noise signal that the false triggering at the edge of electric capacity touch screen is produced by method by other positions of finger root or hands in advance is carried out in advance Identify and filtration treatment.In embodiments of the invention, by increasing the driving voltage of the transmitting terminal of electric capacity touch screen, thus increase and drive The driving force of moving electrode (TX), realizes to come with the operation of detecting distance electric capacity touch screen higher height cutting magnetic induction line Realize detecting more accurately.
Step 110, obtains the reception signal of the receiving terminal of described electric capacity touch screen in real time.
After increasing the driving voltage of transmitting terminal of electric capacity touch screen, when finger or touch medium contact near electric capacity touch screen Time, receive the operation of the cutting magnetic induction line that electrode RX receives.Distance between finger or touch medium and electric capacity touch screen is the least, The magnetic line of force receiving electrode RX reception is the fewest, and the reception signal of the receiving terminal of electric capacity touch screen is the least.
Step 120, according to transmission signal and the reception signal of receiving terminal of transmitting terminal, obtains each electric capacity in electric capacity touch screen The capacitance signal of node.
By reading the memory space of the control chip of electric capacity touch screen, each capacitive node of electric capacity touch screen can be obtained Capacitance.Described capacitance is voltage or the current signal change of electric capacity touch screen generation, through ADC (analog/digital conversion) mould The numerical value obtained after block conversion.Distance between finger or touch medium and electric capacity touch screen and the electricity of each capacitive node of electric capacity touch screen Lotus is changing into direct ratio.The change in electrical charge of each capacitive node of electric capacity touch screen is the biggest, and the capacitance of this capacitive node is the least.
According to described capacitance signal, step 130, determines whether that touch medium moves closer to described electric capacity touch screen.
According to the variation tendency of the capacitance signal obtained, prejudge and whether have touch medium to move closer to described capacitive touch Screen.As a example by capacitance signal is as change in electrical charge, the variable quantity of capacitance signal is gradually increased, and illustrates that touch medium moves closer to described Electric capacity touch screen.
Step 140, when described touch medium moves closer to described electric capacity touch screen, believes the noise in described capacitance signal Number carry out shielding processing.
Described when described touch medium moves closer to described electric capacity touch screen, other positions of staff can touch electricity unavoidably Hold touch screen, the most easily produce noise signal, accordingly, it would be desirable to the capacitance signal obtained is carried out judgement process, detect described electricity Hold in signal and whether have noise signal, if having, filtering the most in advance, shielding described noise signal.Touch-control is had predetermined When medium moves closer to described electric capacity touch screen, shielding processing is carried out for the noise signal in capacitance signal.When being embodied as, can It is zeroed out processing, to obtain there is no noise with the data of the capacitive node corresponding to the touch area being determined as noise signal Capacitance signal.
The signal processing method of electric capacity touch screen disclosed in the embodiment of the present invention, by increasing driving of the transmitting terminal of electric capacity touch screen Galvanic electricity pressure；Obtain the reception signal of the receiving terminal of described electric capacity touch screen in real time；Signal and receiving terminal is sent according to transmitting terminal Receive signal, obtain the capacitance signal of each capacitive node in electric capacity touch screen；Touch-control is determined whether according to described capacitance signal Medium moves closer to described electric capacity touch screen；When described touch medium moves closer to described electric capacity touch screen, to described capacitance signal In noise signal carry out shielding processing, solve in prior art the signal electric capacity touch screen not produced and carry out at filtration Reason, causes application layer low to the touch data treatment effeciency of electric capacity touch screen, and owing to data processing method imperfection causes Produce the problem to mobile terminal maloperation.By increasing the driving voltage of the transmitting terminal of electric capacity touch screen, can sense in advance Imminent trigger action, can identify false triggering, in advance filtered noise signal the most in advance, improve at capacitance signal Reason efficiency.Meanwhile, by advance capacitance signal being carried out shielding processing, decrease owing to data processing method imperfection causes producing The raw probability to mobile terminal maloperation.
Embodiment two:
Seeing Fig. 2, embodiments of the invention two disclose the signal processing method of a kind of electric capacity touch screen, are applied to have electricity Holding the mobile terminal of touch screen, described method includes: step 200 to step 260.
Step 200, increases the driving voltage of the transmitting terminal of electric capacity touch screen.
Capacitance technology touch screen CTP (Capacity Touch Panel) is that the electric current sensing utilizing human body is operated 's.Electric capacity touch screen is typically one piece of four layers of compound glass screen, and the inner surface of glass screen and interlayer are respectively coated with one layer of ITO (nano indium tin Metal-oxide), outermost layer is the silicon soil glassivation that only 0.0015mm is thick, and interlayer ITO coating makees work surface, four angles Draw four electrodes.The work surface of electric capacity touch screen is provided with drive electrode TX and receives electrode RX, during the work of electric capacity touch screen, Electromagnetic field can be produced between motor and reception electrode driving.When finger or touch medium hand capacity touch screen, it is right to cut Answering the magnetic induction line of position, the magnetic induction line of finger or touch medium cutting is the most, and the magnetic induction line that reception electrode RX receives is the fewest.Cause This, when finger or touch medium hand capacity touch screen, siphon away Partial charge from the work surface of electric capacity touch screen, cause capacitive touch The capacitance of screen output declines, and may determine that the position of click according to the capacitance of output.
In embodiments of the invention, by increasing the driving voltage of the transmitting terminal of electric capacity touch screen, thus increase drive electrode (TX) driving force, realizes to realize more with the operation of detecting distance electric capacity touch screen higher height cutting magnetic induction line Accurate detection.In prior art, the driving voltage of general drive electrode (TX), the most only 3.3V, the enforcement of the present invention In example, by the way of increasing the electric source charge pump (chargebump) of electric capacity touch screen, driving voltage is risen to 12V, strengthen Signal emissive porwer, improves signal to noise ratio, further enhances signal detection ability.By strengthening the driving force of TX, can be by magnetic The induction region of sense line increases, and signal detection ability improves in the present invention altitude range of 2 centimetres to detection electric capacity touch screen Interior close action.
Step 210, obtains the reception signal of the receiving terminal of described electric capacity touch screen in real time.
After increasing the driving voltage of transmitting terminal of electric capacity touch screen, when finger or touch medium contact near electric capacity touch screen Time, receive the operation of the cutting magnetic induction line that electrode RX receives.Distance between finger or touch medium and electric capacity touch screen is the least, The magnetic line of force receiving electrode RX reception is the fewest, and the reception signal of the receiving terminal of electric capacity touch screen is the least.
Step 220, according to transmission signal and the reception signal of receiving terminal of transmitting terminal, obtains each electric capacity in electric capacity touch screen The capacitance signal of node.
By reading the memory space of the control chip of electric capacity touch screen, each capacitive node of electric capacity touch screen can be obtained Capacitance.Described capacitance is voltage or the current signal change of electric capacity touch screen generation, through ADC (analog/digital conversion) mould The numerical value obtained after block conversion.Distance and change in electrical charge between finger or touch medium to electric capacity touch screen are directly proportional, and electric capacity Value is inversely proportional to.When the present invention is embodied as, by reading the change in electrical charge electricity as each capacitive node of each capacitive node Hold signal.
According to described capacitance signal, step 230, determines whether that touch medium moves closer to described electric capacity touch screen.
Different electric capacity touch screen performances and parameter can be slightly different, and do not having any touch medium (such as finger) close or connecing When touching, the capacitance of electric capacity each capacitive node of touch screen may be different.When being embodied as, in order to embody detection more accurately and sentence Disconnected result, the embodiment of the present invention uses the capacitance variation amount utilizing each capacitive node to detect leaning on of touch medium or finger Closely, contact process, and judge the size of contact area.
When being embodied as, described determine whether that touch medium moves closer to described electric capacity touch screen according to described capacitance signal Step include: determine the capacitance signal variable quantity of each capacitive node according to described capacitance signal；When described capacitance signal becomes The change amount capacitive node number more than zero is gradually increased, and the electric capacity letter of all capacitive nodes that capacitance signal variable quantity is more than zero When the variation tendency of number variable quantity is for being gradually increased, determines and have touch medium to move closer to described electric capacity touch screen.
Determine that according to described capacitance signal the detailed process of the capacitance signal variable quantity of each capacitive node is as follows.
First read the capacitance of electric capacity touch screen, and create one group of reference capacitance value, after i.e. electric capacity touch screen powers on, do not appoint What touch medium (such as finger) near to or in contact with time, the capacitance of electric capacity each capacitive node of touch screen.Generally, electric capacity touch screen powers on After, do not have any touch medium (such as finger) near to or in contact with time, the real-time electricity of electric capacity each capacitive node of touch screen read Capacitance, reading the capacitance come and deducting reference capacitance value is 0.
Then, interval Preset Time (such as the 10 milliseconds) cycle reads the capacitance of electric capacity each capacitive node of touch screen, and counts Calculate the capacitance of each capacitive node read in real time and the difference of the reference capacitance value of this capacitive node, obtain as each cycle Capacitance variation amount, as it is shown on figure 3, and record.When touch medium (such as finger) is near to or in contact with electric capacity touch screen, read Capacitance can be more than zero, such as capacitive node 301, the capacitance change of capacitive node 302 correspondence.Therefore, calculated reality Time the capacitance of each capacitive node that reads and the difference of reference capacitance value of this capacitive node be the number more than or equal to 0.Logical Often, when the capacitance change of a certain capacitive node is more than or equal to 300, it is believed that electric capacity touch screen corresponding to this capacitive node by Touch medium covers, such as the capacitance change of capacitive node 303 correspondence in Fig. 4.
Judge the capacitance change of each capacitive node that adjacent periods obtains, when the described capacitance change electric capacity more than zero Interstitial content is gradually increased, and, the change of the capacitance signal variable quantity of the capacitance signal variable quantity all capacitive nodes more than zero When change trend is for being gradually increased, it is believed that have touch medium to move closer to electric capacity touch screen.As being the n-th cycle by Fig. 3 to Fig. 4, Fig. 3 The capacitance change of each capacitive node obtained, Fig. 4 is the capacitance change of each capacitive node that the N+1 cycle obtains.Can Seeing, in Fig. 3, the capacitance change capacitive node number more than zero is 7, and in Fig. 4, the capacitance change capacitance section more than zero is counted Mesh is 10, it may be determined that the described capacitance change capacitive node number more than zero is gradually increased.
Along with finger or touch medium move closer to electric capacity touch screen, the capacitance change of electric capacity touch screen output will gradually increase Add, when finger or touch medium touch electric capacity touch screen, i.e. cover the partition capacitance node of electric capacity touch screen, electric capacity touch screen quilt The capacitance change of the capacitive node output covered is up to preset value, such as 300, is not further added by or increases by a small margin.Therefore, When determining the capacitive node that capacitance signal variable quantity is gradually increased, removal is needed to cover capacitive node.I.e. when described electric capacity The change amount signal capacitive node number more than zero is gradually increased, and other capacitance signals change in addition to covering capacitive node When the variation tendency of the capacitance signal variable quantity of the amount capacitive node more than zero is for being gradually increased, determines and have touch medium gradually to lean on Nearly described electric capacity touch screen, wherein, the described capacitive node that covered is that described capacitance signal variable quantity is more than or equal to presetting variable quantity Capacitive node.As a example by capacitive node 301 and 302, the capacitance change at the capacitive node 301 of n-th cycle acquisition is 8, the capacitance change of the capacitive node 301 that the N+1 cycle obtains is 57, the capacitive node 302 obtained in the n-th cycle Capacitance change is 2, and the capacitance change of the capacitive node 302 of the N+1 cycle acquisition is 42, it may be determined that corresponding capacitance saves Point capacitance difference variable quantity be gradually increased, therefore, the variation tendency of the capacitance signal variable quantity of capacitive node 301 and 302 be by Cumulative add.
Reduce owing to touch medium moves the capacitance change that partition capacitance node can be caused to collect in adjacent periods, tool When body is implemented, it is preferable that when the capacitance variation amount of the capacitive node of default accounting is gradually increased, i.e. it is believed that capacitance signal The variation tendency of the capacitance signal variable quantity of the variable quantity all capacitive nodes more than zero is for being gradually increased.When being embodied as, take The capacitance change that the n-th cycle obtains is more than the capacitive node of zero and the capacitance change of the N+1 cycle acquisition is more than zero The union of capacitive node, when this set is in increasing more than the capacitance change of the capacitive node presetting accounting (such as: 60%) Add state, then it is assumed that the variation tendency of described capacitance change is for being gradually increased.
After determining that described touch medium moves closer to described electric capacity touch screen, further to described capacitance signal and make an uproar The identification of acoustical signal, and after identifying and comprising noise signal, shield described noise signal.When being embodied as, described when described When touch medium moves closer to described electric capacity touch screen, the noise signal in described capacitance signal is carried out shielding processing, including: sentence Whether disconnected described capacitance signal comprises the noise signal with default feature；When determining that described capacitance signal comprises described noise letter Number time, shield described noise signal.Specific as follows.
Step 240, it is judged that whether described capacitance signal comprises the noise signal with default feature, if so, performs step 250；Otherwise, jump to step 260, export described capacitance signal.
When determining that described capacitance signal comprises described noise signal, shield described noise signal；The most not to described electricity Hold signal and carry out any process, directly export.
The described step judging whether described capacitance signal comprises the noise signal with default feature, comprises determining that institute State center of gravity and the height of touch area on the described electric capacity touch screen that capacitance signal is corresponding；When described center of gravity with highly meet default During feature, determine that described capacitance signal comprises the noise signal with default feature.
When being embodied as, first determine the capacitance signal variable quantity of each capacitive node according to the capacitance obtained in real time, The capacitance signal variable quantity obtained for current period, determines the described electric capacity that described capacitance signal that current period obtains is corresponding The center of gravity of the touch area on touch screen and height.When being embodied as, the capacitance signal variable quantity of each capacitive node is expressed as (x, y, w), wherein, x with y is the coordinate on the electric capacity touch screen that capacitive node is corresponding, and w is the capacitance change of this capacitive node, Use the method calculating irregularly shaped object center of gravity in prior art, it may be determined that the described electric capacity touch screen that described capacitance signal is corresponding On the center of gravity of touch area.In the coordinate of each capacitive node, the distance between minimum vertical coordinate and maximum ordinate determines Height for touch area.
Then, to the center of gravity of touch area obtained and highly judge, when described center of gravity with highly meet default special When levying, determine that described capacitance signal comprises the noise signal with default feature.
Described when when described center of gravity and highly meeting default feature, determine that described capacitance signal comprises and has default feature The step of noise signal, including: when the center of gravity of described touch area is in default marginal area, and the mobile side of described center of gravity To for during by described marginal area to described electric capacity touch screen center, determine that is produced from the edge that described capacitance signal is described electric capacity touch screen Raw signal；Calculate the threshold level of described position of centre of gravity；When the described height determined is more than described threshold level, determine institute State capacitance signal and comprise the noise signal with default feature.
When being embodied as, pre-setting marginal area, described marginal area is capacitive touch platen edge, distance electric capacity touch screen side Frame distance is less than or equal to the electric capacity touch screen area of predeterminable range, and wherein, predeterminable range value is according to the specific design of mobile terminal Determine.Described marginal area can be left and right two frames of the distance electric capacity touch screen electric capacity touch screen area less than or equal to L, also Can be upper and lower two frames of distance electric capacity touch screen less than or equal to the electric capacity touch screen area of M, or, described marginal area can Think distance electric capacity touch screen left and right two frames less than or equal to L and electric capacity touch screen region distance electric capacity touch screen upper and lower two The individual frame electric capacity touch screen area less than or equal to M, wherein, M and L is the number more than 0.With default marginal area in the present embodiment As a example by the region less than or equal to L of the left frame apart from electric capacity touch screen, as shown in Fig. 5 501, illustrate and determine that described electric capacity is believed Number whether comprise the detailed process of the noise signal with default feature.
The upper left corner assuming electric capacity touch screen 50 is zero, by left-to-right for transverse axis positive direction, when the Touch Zone obtained When the abscissa of the center of gravity 503 in territory 502 is less than L, determines that described touch area is marginal area, determine whether the movement of center of gravity Direction.If the touch area that the abscissa of the center of gravity of the touch area that previous adjacent periods determines determines less than current period The abscissa of center of gravity, it is determined that the moving direction of center of gravity is by described marginal area to described electric capacity touch screen center.
Then, the threshold level of described position of centre of gravity is calculated.
When copper pin deck hits the marginal area of electric capacity touch screen, a range of touch area has capacitance signal, capacitive touch The capacitance signal of screen output is formed can a border circular areas.Along with click location gradually moves to the center of electric capacity touch screen, weight Heart coordinate is gradually increased, and the height of the border circular areas formed when copper pin deck hits electric capacity touch screen linearly increases along with the center of gravity of border circular areas Add.When copper pin deck hits the marginal area of electric capacity touch screen, click on the circle that the center of gravity of the touch area that diverse location is formed is corresponding The height in territory is set to the threshold level that this center of gravity is corresponding.When being embodied as, the threshold level of the described position of centre of gravity of described calculating Step include: according to formulaCalculate the threshold level of described position of centre of gravity, wherein, x0And x1According to The touch area center of gravity that the marginal area set is demarcated in advance, w0And w1It is respectively center of gravity x0And x1Corresponding height value；xnFor institute State position of centre of gravity, i.e. the position of centre of gravity of the touch area that current period obtains, wnThreshold level for described position of centre of gravity.
Other positions of actual finger or hands, what the capacitance signal as produced when tiger's jaw presses marginal area was formed touches It is similar that marginal area is hit with copper pin deck in control region.Therefore, when being embodied as, use formulaCalculate current week The threshold level w of touch area corresponding to capacitance signal that the phase obtainsn, when the described height determined is more than described threshold level Time, determine that described capacitance signal comprises the noise signal with default feature.
Step 250, shields described noise signal.
Predetermined have touch medium to move closer to described electric capacity touch screen time, the noise signal in capacitance signal is entered Row shielding processing.When being embodied as, the data of capacitive node that can be corresponding to the touch area being determined as noise signal are entered Row clearing processes, to obtain not having noisy capacitance signal.
Step 260, output capacitance signal.
In this step, output does not has the capacitance signal of noise signal.If abovementioned steps 240 detects acquisition in step 210 Capacitance signal comprises noise signal, then shield the capacitance signal after described noise signal in this step output step 250；If it is front Stating step 240 and detect that the capacitance signal obtained in step 210 does not comprise noise signal, this step directly exports in step 210 The capacitance signal obtained.
The signal processing method of electric capacity touch screen disclosed in the embodiment of the present invention, by increasing driving of the transmitting terminal of electric capacity touch screen Galvanic electricity pressure；Obtain the reception signal of the receiving terminal of described electric capacity touch screen in real time；Signal and receiving terminal is sent according to transmitting terminal Receive signal, obtain the capacitance signal of each capacitive node in electric capacity touch screen；Touch-control is determined whether according to described capacitance signal Medium moves closer to described electric capacity touch screen；When described touch medium moves closer to described electric capacity touch screen, to described capacitance signal In noise signal carry out shielding processing, solve in prior art the signal electric capacity touch screen not produced and carry out at filtration Reason, causes application layer low to the touch data treatment effeciency of electric capacity touch screen, and owing to data processing method imperfection causes Produce the problem to mobile terminal maloperation.By increasing the driving voltage of the transmitting terminal of electric capacity touch screen, can sense in advance Imminent trigger action, by combining the position of capacitance signal, can identify false triggering the most in advance, filter in advance and make an uproar Acoustical signal, improves capacitance signal treatment effeciency.Meanwhile, by advance capacitance signal being carried out shielding processing, decrease due to Data processing method imperfection results in the probability to mobile terminal maloperation.
Embodiment three:
See Fig. 6, embodiments provide the signal processing method of a kind of electric capacity touch screen, be applied to that there is capacitive touch The mobile terminal of screen, the method includes: step 600 to step 670.
Step 600, increases the driving voltage of the transmitting terminal of electric capacity touch screen.
The specific implementation of the driving voltage increasing the transmitting terminal of electric capacity touch screen sees the correlation step of embodiment two, this Place repeats no more.
Step 610, obtains the reception signal of the receiving terminal of described electric capacity touch screen in real time.
The specific implementation receiving signal of the receiving terminal obtaining described electric capacity touch screen in real time sees the phase of embodiment two Closing step, here is omitted.
Step 620, according to transmission signal and the reception signal of receiving terminal of transmitting terminal, obtains each electric capacity in electric capacity touch screen The capacitance signal of node.
Transmission signal according to transmitting terminal and the reception signal of receiving terminal, obtain the electricity of each capacitive node in electric capacity touch screen The specific implementation holding signal sees the correlation step of embodiment two, and here is omitted.
According to described capacitance signal, step 630, determines whether that touch medium moves closer to described electric capacity touch screen.
Determine whether that touch medium moves closer to the specific implementation of described electric capacity touch screen according to described capacitance signal Seeing the correlation step of embodiment two, here is omitted.
Step 640, it is judged that whether described capacitance signal comprises the noise signal with default feature, if so, performs step 650；Otherwise, jump to step 670, export described capacitance signal.
Judge whether described capacitance signal comprises the specific implementation of the noise signal with default feature and see enforcement The correlation step of example two, here is omitted.When state capacitance signal comprises the noise signal with default feature time, jump to Step 650, it may be judged whether for one-handed performance mobile terminal；Otherwise, direct output capacitance signal.
Step 650, it may be judged whether for mobile terminal described in one-handed performance, the most then perform step 660, otherwise, perform step Rapid 670.
When mobile terminal described in one-handed performance, when the electric capacity touch screen of the finger touch far-end of user, grip the tiger of hands The finger root position of mouth or thumb is easy to the edge of hand capacity touch screen.Therefore, by judging that user moves end as one-handed performance End can judge whether comprise noise signal in the capacitance signal obtained more accurately.Described when described center of gravity with highly meet pre- If during feature, after determining that described capacitance signal comprises the noise signal with default feature, also include: determine whether one hand Operate described mobile terminal；When mobile terminal described in one-handed performance, perform the process to described noise signal and operate.
Described determine whether that described in one-handed performance, mobile terminal includes: obtain described mobile terminal with the long limit of screen as axle Axial-rotation angle；When described angle of inclination is more than or equal to predetermined angle, it is defined as mobile terminal described in one-handed performance.When During user's one-handed performance mobile terminal, if using finger to click on the electric capacity touch screen of far-end, usual mobile terminal can tilt.I.e. move The display screen of terminal is towards mobile phone users, and horizontal by certain angle.When being embodied as, utilize gravity sensor or Gyroscope detection mobile terminal and the angle of horizontal plane, when this angle reaches predetermined angle, determine one-handed performance mobile terminal.
Step 660, shields described noise signal.
The specific implementation shielding described noise signal sees the correlation step of embodiment two, and here is omitted.
Step 670, output capacitance signal.
The specific implementation of output capacitance signal sees the correlation step of embodiment two, and here is omitted.
The signal processing method of the electric capacity touch screen of the embodiment of the present invention, by increasing the driving electricity of the transmitting terminal of electric capacity touch screen Pressure；Obtain the reception signal of the receiving terminal of described electric capacity touch screen in real time；Transmission signal according to transmitting terminal and the reception of receiving terminal Signal, obtains the capacitance signal of each capacitive node in electric capacity touch screen；And determine whether mobile terminal described in one-handed performance, Determine whether that touch medium moves closer to described electric capacity touch screen according to described capacitance signal during one-handed performance；As described touch-control matchmaker When Jie moves closer to described electric capacity touch screen, the noise signal in described capacitance signal is carried out shielding processing, solves existing skill The signal not produced electric capacity touch screen in art carries out filtration treatment, causes application layer that the touch data of electric capacity touch screen is processed effect Rate is low, and owing to data processing method imperfection results in the problem to mobile terminal maloperation.By increasing electric capacity The driving voltage of the transmitting terminal of touch screen, can sense imminent trigger action in advance, by combining the position of capacitance signal Put, false triggering, in advance filtered noise signal can be identified the most in advance, improve capacitance signal treatment effeciency.Meanwhile, pass through In advance capacitance signal is carried out shielding processing, decrease owing to data processing method imperfection results in mobile terminal behaviour by mistake The probability made.
Embodiment four:
Correspondingly, the embodiment of the invention also discloses a kind of mobile terminal 70, described mobile terminal includes electric capacity touch screen (figure Not shown in), as it is shown in fig. 7, described mobile terminal 70 includes:
Signal strengthens module 710, for increasing the driving voltage of the transmitting terminal of electric capacity touch screen；
Signal receiving module 720, for the reception signal of the receiving terminal of the described electric capacity touch screen of acquisition in real time；
Capacitance signal acquisition module 730, for the transmission signal according to transmitting terminal and the reception signal of receiving terminal, obtains electricity Hold the capacitance signal of each capacitive node in touch screen；
Touch-control judge module 740, judges whether for the capacitance signal obtained according to described capacitance signal acquisition module 730 Touch medium is had to move closer to described electric capacity touch screen；
Noise processed module 750, for judging have touch medium to move closer to described electricity when described touch-control judge module 740 When holding touch screen, the noise signal in described capacitance signal is carried out shielding processing.
In the present embodiment, the detailed description of the invention of each module of mobile terminal sees embodiment of the method part, the most superfluous State.
Mobile terminal disclosed in the embodiment of the present invention, by increasing the driving voltage of the transmitting terminal of electric capacity touch screen；Obtain in real time Take the reception signal of the receiving terminal of described electric capacity touch screen；Transmission signal according to transmitting terminal and the reception signal of receiving terminal, obtain The capacitance signal of each capacitive node in electric capacity touch screen；Determine whether that touch medium moves closer to institute according to described capacitance signal State electric capacity touch screen；When described touch medium moves closer to described electric capacity touch screen, the noise signal in described capacitance signal is entered Row shielding processing, solves the signal not produced electric capacity touch screen in prior art and carries out filtration treatment, cause application layer pair The touch data treatment effeciency of electric capacity touch screen is low, and owing to data processing method imperfection results in mobile terminal by mistake The problem of operation.By increasing the driving voltage of the transmitting terminal of electric capacity touch screen, can sense that imminent triggering is moved in advance Make, false triggering, in advance filtered noise signal can be identified the most in advance, improve capacitance signal treatment effeciency.Meanwhile, pass through In advance capacitance signal is carried out shielding processing, decrease owing to data processing method imperfection results in mobile terminal behaviour by mistake The probability made.
Alternatively, as shown in Figure 8, described touch-control judge module 740 includes:
Capacitance signal variable quantity determines unit 7401, for determining the electric capacity of each capacitive node according to described capacitance signal Change amount signal；
When described capacitance signal variable quantity, touch-control judging unit 7402, for determining that the capacitance signal that unit 7401 determines becomes The change amount capacitive node number more than zero is gradually increased, and the electric capacity letter of all capacitive nodes that capacitance signal variable quantity is more than zero When the variation tendency of number variable quantity is for being gradually increased, determines and have touch medium to move closer to described electric capacity touch screen.
Alternatively, as shown in Figure 8, described noise processed module 750, including:
Noise judging unit 7501, for judging whether described capacitance signal comprises the noise signal with default feature；
When described noise judging unit, noise processed unit 7502, for determining that described capacitance signal comprises described noise letter Number time, shield described noise signal.
Alternatively, as shown in Figure 8, described noise judging unit 7501 includes:
Parameter determination subelement 75011, for determining the Touch Zone on the described electric capacity touch screen that described capacitance signal is corresponding The center of gravity in territory and height；
Noise judgment sub-unit 75012, in time when described center of gravity and highly meeting default feature, determines that described electric capacity is believed Number comprise the noise signal with default feature.
Alternatively, described noise judgment sub-unit 75012 specifically for: when the center of gravity of described touch area is on default limit In edge region, and when the moving direction of described center of gravity is by described marginal area to described electric capacity touch screen center, determine described electricity Hold the signal that the edge that signal is described electric capacity touch screen produces；Calculate the threshold level of described position of centre of gravity；Described in determining Time highly more than described threshold level, determine that described capacitance signal comprises the noise signal with default feature.
Alternatively, the threshold level of the described position of centre of gravity of described calculating includes: according to formulaCalculate The threshold level of described position of centre of gravity, wherein, x0And x1According to the touch area center of gravity demarcated in advance of marginal area that sets, w0And w1It is respectively center of gravity x0And x1Corresponding touch area height value；xnFor described position of centre of gravity, wnFor described position of centre of gravity Threshold level.
In another embodiment of the present invention, as it is shown in figure 9, alternatively, described noise judging unit 7501 also includes:
One-handed performance judgment sub-unit 75013, is used for determining whether mobile terminal described in one-handed performance so that at one hand When operating described mobile terminal, perform the process to described noise signal and operate.
Alternatively, described one-handed performance judgment sub-unit 75013 specifically for: obtain described mobile terminal with the long limit of screen Axial-rotation angle for axle；When described angle of inclination is more than or equal to predetermined angle, it is defined as described in one-handed performance mobile whole End.
The mobile terminal of the embodiment of the present invention, by increasing the driving voltage of the transmitting terminal of electric capacity touch screen；Obtain institute in real time State the reception signal of the receiving terminal of electric capacity touch screen；Transmission signal according to transmitting terminal and the reception signal of receiving terminal, obtain electric capacity The capacitance signal of each capacitive node in touch screen；And determine whether mobile terminal described in one-handed performance, the root when one-handed performance Determine whether that touch medium moves closer to described electric capacity touch screen according to described capacitance signal；When described touch medium moves closer to institute When stating electric capacity touch screen, the noise signal in described capacitance signal is carried out shielding processing, solve in prior art not to electricity The signal holding touch screen generation carries out filtration treatment, causes application layer low to the touch data treatment effeciency of electric capacity touch screen, and Owing to data processing method imperfection results in the problem to mobile terminal maloperation.
By increasing the driving voltage of the transmitting terminal of electric capacity touch screen, imminent trigger action can be sensed in advance, By combining the position of capacitance signal, false triggering, in advance filtered noise signal can be identified the most in advance, improve electric capacity letter Number treatment effeciency.Meanwhile, by advance capacitance signal being carried out shielding processing, decrease owing to data processing method imperfection is led Cause to produce the probability to mobile terminal maloperation.
By the pattern combining one-handed performance mobile terminal, the noise signal in capacitance signal is judged, carry further The property accurately that high noise signal judges.
Embodiment five:
Figure 10 is the block diagram of the mobile terminal of another embodiment of the present invention.Mobile terminal 1000 shown in Figure 10 includes: At least one processor 1001, memorizer 1002, at least one network interface 1004 and other user interfaces 1003.Mobile terminal Each assembly in 1000 is coupled by bus system 1005.It is understood that bus system 1005 is used for realizing these groups Connection communication between part.Bus system 1005, in addition to including data/address bus, also includes power bus, controls bus and state Signal bus.But for the sake of understanding explanation, in Fig. 10 various buses are all designated as bus system 1005.
Wherein, user interface 1003 can include display, keyboard or pointing device (such as, mouse, trace ball (trackball), touch-sensitive plate, touch screen or Trackpad etc..The present embodiment is electric capacity touch screen by touch screen.
The memorizer 1002 being appreciated that in the embodiment of the present invention can be volatile memory or non-volatile memories Device, maybe can include volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read only memory (Read-Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), erasable programmable are only Read memorizer (Erasable PROM, EPROM), Electrically Erasable Read Only Memory (Electrically EPROM, Or flash memory EEPROM).Volatile memory can be random access memory (Random Access Memory, RAM), and it is used Make External Cache.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static random-access Memorizer (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random-access Memorizer (Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate SDRAM, DDRSDRAM), enhancement mode Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronize Connect dynamic random access memory (Synchlink DRAM, SLDRAM) and direct rambus random access memory (Direct Rambus RAM, DRRAM).The memorizer 1002 of system and method described herein is intended to include but not limited to this A little and arbitrarily other applicable type memorizer.
In some embodiments, memorizer 1002 stores following element, executable module or data structure, or Their subset of person, or their superset: operating system 10021 and application program 10022.
Wherein, operating system 10021, comprise various system program, such as ccf layer, core library layer, driving layer etc., be used for Realize various basic business and process hardware based task.Application program 10022, comprises various application program, such as matchmaker Body player (Media Player), browser (Browser) etc., be used for realizing various applied business.Realize the present invention to implement The program of example method may be embodied in application program 10022.
In embodiments of the present invention, by calling program or the instruction of memorizer 1002 storage, concrete, can be application The program stored in program 10022 or instruction.Detect user by the touch screen in user interface 1003 and use application program Operation, and detect user and click on the trigger action of desktop folder or open the trigger action of desktop folder, and detection is opened The trigger action of dynamic application program.Processor 1001 is for increasing the driving voltage of the transmitting terminal of electric capacity touch screen；Obtain institute in real time State the reception signal of the receiving terminal of electric capacity touch screen；Transmission signal according to transmitting terminal and the reception signal of receiving terminal, obtain electric capacity The capacitance signal of each capacitive node in touch screen；Determine whether that touch medium moves closer to described electricity according to described capacitance signal Hold touch screen；When described touch medium moves closer to described electric capacity touch screen, the noise signal in described capacitance signal is shielded Cover process.
The method part that the invention described above embodiment discloses can apply in processor 1001, or by processor 1001 Realize.Processor 1001 is probably a kind of IC chip, has the disposal ability of signal.During realizing, above-mentioned side Each step of method can be completed by the instruction of the integrated logic circuit of the hardware in processor 1001 or software form.Above-mentioned Processor 1001 can be general processor, digital signal processor (Digital Signal Processor, DSP), specially With integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other PLDs, discrete gate or transistor are patrolled Collect device, discrete hardware components.Can realize or perform disclosed each method, step and the box in the embodiment of the present invention Figure.The processor etc. that general processor can be microprocessor or this processor can also be any routine.In conjunction with the present invention The step of the method disclosed in embodiment can be embodied directly in hardware decoding processor and perform, or uses decoding processor In hardware and software module combination execution complete.Software module may be located at random access memory, and flash memory, read only memory can In the storage medium that this areas such as program read-only memory or electrically erasable programmable memorizer, depositor are ripe.This storage Medium is positioned at memorizer 1002, and processor 1001 reads the access times to application program of the user in memorizer 1002, in conjunction with Its hardware completes the step of said method.
It is understood that embodiments described herein can use hardware, software, firmware, middleware, microcode or its Combination realizes.Realizing for hardware, processing unit can be implemented in one or more special IC (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor, Controller, microcontroller, microprocessor, for performing in other electronic unit or a combination thereof of herein described function.
Software is realized, can be realized herein by the module (such as process, function etc.) performing function described herein Described technology.Software code is storable in performing in memorizer and by processor.Memorizer can within a processor or Processor is outside to be realized.
Alternatively, processor 1001 is additionally operable to determine the capacitance signal change of each capacitive node according to described capacitance signal Amount；When the described capacitance signal variable quantity capacitive node number more than zero is gradually increased, and capacitance signal variable quantity is more than zero When the variation tendency of the capacitance signal variable quantity of all capacitive nodes is for being gradually increased, determine that to have touch medium to move closer to described Electric capacity touch screen.
Alternatively, processor 1001 is additionally operable to judge whether described capacitance signal comprises the noise letter with default feature Number；When determining that described capacitance signal comprises described noise signal, shield described noise signal.
Alternatively, processor 1001 is additionally operable to determine the touch area on the described electric capacity touch screen that described capacitance signal is corresponding Center of gravity and height；When described center of gravity and highly meeting default feature, determine that described capacitance signal comprises and has default feature Noise signal.
Alternatively, processor 1001 is additionally operable to when the center of gravity of described touch area is in default marginal area and described When the moving direction of center of gravity is by described marginal area to described electric capacity touch screen center, determine that described capacitance signal is described electric capacity The signal that the edge of touch screen produces；Calculate the threshold level of described position of centre of gravity；When the described height determined is more than described threshold value Time highly, determine that described capacitance signal comprises the noise signal with default feature.
Alternatively, processor 1001 is additionally operable to according to formulaThe threshold value calculating described position of centre of gravity is high Degree, wherein, x0And x1According to the touch area center of gravity demarcated in advance of marginal area that sets, w0And w1It is respectively center of gravity x0And x1 Corresponding height value；xnFor described position of centre of gravity, wnThreshold level for described position of centre of gravity.
Alternatively, processor 1001 is additionally operable to determine whether mobile terminal described in one-handed performance；Described in one-handed performance During mobile terminal, perform the process to described noise signal and operate.
Alternatively, processor 1001 is additionally operable to the axial-rotation angle obtaining described mobile terminal with the long limit of screen as axle；
When described angle of inclination is more than or equal to predetermined angle, it is defined as mobile terminal described in one-handed performance.
Mobile terminal 1000 is capable of each process that in previous embodiment, mobile terminal realizes, for avoiding repeating, this In repeat no more.By the present embodiment, imminent trigger action can be sensed in advance, by combining the position of capacitance signal Put, false triggering, in advance filtered noise signal can be identified the most in advance, improve capacitance signal treatment effeciency.Meanwhile, pass through In advance capacitance signal is carried out shielding processing, decrease owing to data processing method imperfection results in mobile terminal behaviour by mistake The probability made.
Embodiment six:
Figure 11 is the structural representation of the mobile terminal of another embodiment of the present invention.Specifically, the mobile end in Figure 11 End can be mobile phone, panel computer, personal digital assistant (Personal Digital Assistant, PDA) or vehicle-mounted computer Deng.
Mobile terminal in Figure 11 includes radio frequency (Radio Frequency, RF) circuit 1110, memorizer 1120, input Unit 1130, display unit 1140, processor 1160, voicefrequency circuit 1170, communication module 1180 and power supply 1190.
Wherein, input block 1130 can be used for receiving the trigger action of user's input, and produces the use with mobile terminal Family is arranged and function controls relevant signal input.Specifically, in the embodiment of the present invention, this input block 1130 can include Contact panel 1131.Contact panel 1131, also referred to as touch screen, can collect user thereon or neighbouring touch operation (such as User uses any applicable object such as finger, stylus or adnexa operation on contact panel 1131), and according to presetting Formula drive corresponding attachment means.Optionally, contact panel 1131 can include touch detecting apparatus and touch controller two Individual part.Wherein, the touch orientation of touch detecting apparatus detection user, and detect the signal that touch operation brings, signal is passed Give touch controller；Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then Give this processor 1160, and order that processor 1160 sends can be received and performed.Furthermore, it is possible to employing resistance-type, The polytypes such as condenser type, infrared ray and surface acoustic wave realize contact panel 1131.Except contact panel 1131, input block 1130 can also include other input equipments 1132, and other input equipments 1132 can include but not limited to physical keyboard, function One or more in key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc..
Wherein, display unit 1140 can be used for showing the information inputted by user or the information being supplied to user and movement The various menu interfaces of terminal 1100.Display unit 1140 can include display floater 1141, optionally, can use LCD or have The forms such as machine light emitting diode (Organic Light-Emitting Diode, OLED) configure display floater 1141.
It should be noted that contact panel 1131 can cover display floater 1141, formed and touch display screen, when this touch display screen Detect thereon or after neighbouring touch operation, send processor 1160 to determine the type of touch event, with post processing Device 1160 provides corresponding visual output according to the type of touch event on touch display screen.
Touch display screen and include Application Program Interface viewing area and conventional control viewing area.This Application Program Interface viewing area And the arrangement mode of this conventional control viewing area does not limit, can be arranged above and below, left-right situs etc. can be distinguished two and show Show the arrangement mode in district.This Application Program Interface viewing area is displayed for the interface of application program.Each interface is permissible The interface elements such as the icon and/or the widget desktop control that comprise at least one application program.This Application Program Interface viewing area It can also be the empty interface not comprising any content.This conventional control viewing area is for showing the control that utilization rate is higher, such as, The application icons etc. such as settings button, interface numbering, scroll bar, phone directory icon.
Wherein processor 1160 is the control centre of mobile terminal 1100, utilizes various interface and the whole mobile phone of connection Various piece, be stored in the software program in first memory 1121 and/or module by running or performing, and call and deposit Storage data in second memory 1122, perform the various functions of mobile terminal 1100 and process data, thus to moving eventually End 1100 carries out integral monitoring.Optionally, processor 1160 can include one or more processing unit.
In embodiments of the present invention, by call the software program and/or module stored in this first memory 1121 and/ Or the data in this second memory 1122, processor 1160 is for increasing the driving voltage of the transmitting terminal of electric capacity touch screen；In real time Obtain the reception signal of the receiving terminal of described electric capacity touch screen；Transmission signal according to transmitting terminal and the reception signal of receiving terminal, obtain The capacitance signal of each capacitive node in touch screen is held in power taking；Determine whether that touch medium moves closer to according to described capacitance signal Described electric capacity touch screen；When described touch medium moves closer to described electric capacity touch screen, to the noise signal in described capacitance signal Carry out shielding processing.
Alternatively, processor 1160 is additionally operable to determine the capacitance signal change of each capacitive node according to described capacitance signal Amount；When the described capacitance signal variable quantity capacitive node number more than zero is gradually increased, and capacitance signal variable quantity is more than zero When the variation tendency of the capacitance signal variable quantity of all capacitive nodes is for being gradually increased, determine that to have touch medium to move closer to described Electric capacity touch screen.
Alternatively, processor 1160 is additionally operable to judge whether described capacitance signal comprises the noise letter with default feature Number；When determining that described capacitance signal comprises described noise signal, shield described noise signal.
Alternatively, processor 1160 is additionally operable to determine the touch area on the described electric capacity touch screen that described capacitance signal is corresponding Center of gravity and height；When described center of gravity and highly meeting default feature, determine that described capacitance signal comprises and has default feature Noise signal.
Alternatively, processor 1160 is additionally operable to when the center of gravity of described touch area is in default marginal area and described When the moving direction of center of gravity is by described marginal area to described electric capacity touch screen center, determine that described capacitance signal is described electric capacity The signal that the edge of touch screen produces；Calculate the threshold level of described position of centre of gravity；When the described height determined is more than described threshold value Time highly, determine that described capacitance signal comprises the noise signal with default feature.
Alternatively, processor 1160 is additionally operable to according to formulaThe threshold value calculating described position of centre of gravity is high Degree, wherein, x0And x1According to the touch area center of gravity demarcated in advance of marginal area that sets, w0And w1It is respectively center of gravity x0And x1 Corresponding height value；xnFor described position of centre of gravity, wnThreshold level for described position of centre of gravity.
Alternatively, processor 1160 is additionally operable to determine whether mobile terminal described in one-handed performance；Described in one-handed performance During mobile terminal, perform the process to described noise signal and operate.
Alternatively, processor 1160 is additionally operable to the axial-rotation angle obtaining described mobile terminal with the long limit of screen as axle；
When described angle of inclination is more than or equal to predetermined angle, it is defined as mobile terminal described in one-handed performance.
Visible, by the mobile terminal of the present embodiment, imminent trigger action can be sensed in advance, by combining The position of capacitance signal, can identify false triggering, in advance filtered noise signal the most in advance, improves capacitance signal and processes effect Rate.Meanwhile, by advance capacitance signal being carried out shielding processing, decrease due to data processing method imperfection result in right The probability of mobile terminal maloperation.
Those of ordinary skill in the art are it is to be appreciated that combine the list of each example that the embodiments described herein describes Unit and algorithm steps, it is possible to being implemented in combination in of electronic hardware or computer software and electronic hardware.These functions are actually Perform with hardware or software mode, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel Each specifically should being used for can be used different methods to realize described function, but this realization is it is not considered that exceed The scope of the present invention.
Those skilled in the art is it can be understood that arrive, for convenience and simplicity of description, and the movement of foregoing description The specific works process of terminal, is referred to the corresponding process in preceding method embodiment, does not repeats them here.
In embodiment provided herein, it should be understood that disclosed apparatus and method, can be passed through other Mode realizes.Such as, device embodiment described above is only schematically, such as, the division of described unit, it is only A kind of logic function divides, actual can have when realizing other dividing mode, the most multiple unit or assembly can in conjunction with or Person is desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or discussed is mutual Between coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit or communication link Connect, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, shows as unit The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme 's.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to It is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.
If described function is using the form realization of SFU software functional unit and as independent production marketing or use, permissible It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is the most in other words The part contributing prior art or the part of this technical scheme can embody with the form of software product, this meter Calculation machine software product is stored in a storage medium, including some instructions with so that a computer equipment (can be individual People's computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention. And aforesaid storage medium includes: USB flash disk, portable hard drive, ROM, RAM, magnetic disc or CD etc. are various can store program code Medium.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with scope of the claims.
Each embodiment in this specification all uses the mode gone forward one by one to describe, what each embodiment stressed is with The difference of other embodiments, between each embodiment, identical similar part sees mutually.Real for mobile terminal For executing example, due to itself and embodiment of the method basic simlarity, so describe is fairly simple, relevant part sees embodiment of the method Part illustrate.

Claims (16)

1. a signal processing method for electric capacity touch screen, is applied to be provided with the mobile terminal of electric capacity touch screen, it is characterised in that bag Include:
Increase the driving voltage of the transmitting terminal of electric capacity touch screen；
Obtain the reception signal of the receiving terminal of described electric capacity touch screen in real time；
Transmission signal according to transmitting terminal and the reception signal of receiving terminal, obtain the electric capacity letter of each capacitive node in electric capacity touch screen Number；
Determine whether that touch medium moves closer to described electric capacity touch screen according to described capacitance signal；
When described touch medium moves closer to described electric capacity touch screen, the noise signal in described capacitance signal is carried out at shielding Reason.
2. the method for claim 1, it is characterised in that described determine whether touch medium according to described capacitance signal The step moving closer to described electric capacity touch screen includes:
The capacitance signal variable quantity of each capacitive node is determined according to described capacitance signal；
When the described capacitance signal variable quantity capacitive node number more than zero is gradually increased, and capacitance signal variable quantity is more than zero When the variation tendency of the capacitance signal variable quantity of all capacitive nodes is for being gradually increased, determine that to have touch medium to move closer to described Electric capacity touch screen.
3. the method for claim 1, it is characterised in that described move closer to described electric capacity touch screen when described touch medium Time, the noise signal in described capacitance signal is carried out the step of shielding processing, including:
Judge whether described capacitance signal comprises the noise signal with default feature；
When determining that described capacitance signal comprises described noise signal, shield described noise signal.
4. method as claimed in claim 3, it is characterised in that described judge whether described capacitance signal comprises to have and preset spy The step of the noise signal levied, including:
Determine center of gravity and the height of touch area on the described electric capacity touch screen that described capacitance signal is corresponding；
When described center of gravity and highly meeting default feature, determine that described capacitance signal comprises the noise letter with default feature Number.
5. method as claimed in claim 4, it is characterised in that described when when described center of gravity and highly meeting default feature, really Fixed described capacitance signal comprises the step of the noise signal with default feature, including:
When the center of gravity of described touch area is in default marginal area, and the moving direction of described center of gravity is by described marginal zone During territory to described electric capacity touch screen center, determine the signal that the edge that described capacitance signal is described electric capacity touch screen produces；
Calculate the threshold level of described position of centre of gravity；
When the described height determined is more than described threshold level, determine that described capacitance signal comprises the noise with default feature Signal.
6. method as claimed in claim 5, it is characterised in that the step bag of the threshold level of the described position of centre of gravity of described calculating Include:
According to formulaCalculate the threshold level of described position of centre of gravity, wherein, x0And x1According to set limit The touch area center of gravity that edge region is demarcated in advance, w0And w1It is respectively center of gravity x0And x1Corresponding height value；xnFor described center of gravity position Put, wnThreshold level for described position of centre of gravity.
7. the method as described in any one of claim 4 to 6, it is characterised in that described when described center of gravity with highly meet default During feature, after determining the step that described capacitance signal comprises the noise signal with default feature, also include:
Determine whether mobile terminal described in one-handed performance；
When mobile terminal described in one-handed performance, perform the process to described noise signal and operate.
8. method as claimed in claim 7, it is characterised in that described in determine whether the step of mobile terminal described in one-handed performance Suddenly, including:
Obtain described mobile terminal in the axial-rotation angle with the long limit of screen as axle；
When described angle of inclination is more than or equal to predetermined angle, it is defined as mobile terminal described in one-handed performance.
9. a mobile terminal, including electric capacity touch screen, it is characterised in that described mobile terminal also includes:
Signal strengthens module, for increasing the driving voltage of the transmitting terminal of electric capacity touch screen；
Signal receiving module, for the reception signal of the receiving terminal of the described electric capacity touch screen of acquisition in real time；
Capacitance signal acquisition module, for the transmission signal according to transmitting terminal and the reception signal of receiving terminal, obtains electric capacity touch screen In the capacitance signal of each capacitive node；
Touch-control judge module, determines whether touch medium for the capacitance signal obtained according to described capacitance signal acquisition module Move closer to described electric capacity touch screen；
Noise processed module, is used for when described touch-control judge module judges have touch medium to move closer to described electric capacity touch screen, Noise signal in described capacitance signal is carried out shielding processing.
10. mobile terminal as claimed in claim 9, it is characterised in that described touch-control judge module includes:
Capacitance signal variable quantity determines unit, for determining the capacitance signal change of each capacitive node according to described capacitance signal Amount；
When described capacitance signal variable quantity, touch-control judging unit, for determining that the capacitance signal variable quantity that unit determines is more than zero Capacitive node number is gradually increased, and the change of the capacitance signal variable quantity of all capacitive nodes that capacitance signal variable quantity is more than zero When change trend is for being gradually increased, determines and have touch medium to move closer to described electric capacity touch screen.
11. mobile terminals as claimed in claim 9, it is characterised in that described noise processed module, including:
Noise judging unit, for judging whether described capacitance signal comprises the noise signal with default feature；
Noise processed unit, for when described noise judging unit determines that described capacitance signal comprises described noise signal, shields Covert states noise signal.
12. mobile terminals as claimed in claim 11, it is characterised in that described noise judging unit includes:
Parameter determination subelement, for determine touch area on the described electric capacity touch screen that described capacitance signal is corresponding center of gravity and Highly；
Noise judgment sub-unit, in time when described center of gravity and highly meeting default feature, determines that described capacitance signal comprises tool There is the noise signal of default feature.
13. mobile terminals as claimed in claim 12, it is characterised in that described noise judgment sub-unit specifically for:
When the center of gravity of described touch area is in default marginal area, and the moving direction of described center of gravity is by described marginal zone During territory to described electric capacity touch screen center, determine the signal that the edge that described capacitance signal is described electric capacity touch screen produces；
Calculate the threshold level of described position of centre of gravity；
When the described height determined is more than described threshold level, determine that described capacitance signal comprises the noise with default feature Signal.
14. mobile terminals as claimed in claim 13, it is characterised in that the threshold level bag of the described position of centre of gravity of described calculating Include:
According to formulaCalculate the threshold level of described position of centre of gravity, wherein, x0And x1According to set limit The touch area center of gravity that edge region is demarcated in advance, w0And w1It is respectively center of gravity x0And x1Corresponding height value；xnFor described center of gravity position Put, wnThreshold level for described position of centre of gravity.
15. mobile terminals as described in any one of claim 12 to 14, it is characterised in that described noise judging unit is also Including:
One-handed performance judgment sub-unit, is used for determining whether mobile terminal described in one-handed performance so that described in one-handed performance During mobile terminal, perform the process to described noise signal and operate.
16. mobile terminals as claimed in claim 15, it is characterised in that described one-handed performance judgment sub-unit specifically for:
Obtain the described mobile terminal axial-rotation angle with the long limit of screen as axle；
When described angle of inclination is more than or equal to predetermined angle, it is defined as mobile terminal described in one-handed performance.
CN201610505346.6A 2016-06-28 2016-06-28 A kind of signal processing method and mobile terminal of capacitance touch screen Active CN106201073B (en)

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CN109067966A (en) * 2018-06-15 2018-12-21 Oppo广东移动通信有限公司 Proximity test method and relevant device
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CN115550504A (en) * 2022-08-08 2022-12-30 赫名迪科技(深圳)有限公司 Screen control method and device

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CN104035578A (en) * 2014-05-26 2014-09-10 小米科技有限责任公司 Method and device for controlling capacitance touch screen terminal
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CN104049794A (en) * 2013-03-13 2014-09-17 三星电子株式会社 Method and apparatus for operating touch screen
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CN106873825A (en) * 2017-01-03 2017-06-20 努比亚技术有限公司 A kind of method and apparatus for reducing the interference of terminal touch screen
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CN109710109A (en) * 2018-12-28 2019-05-03 Oppo广东移动通信有限公司 Control method, control device, electronic device and storage medium
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