CN106951128A - Method of adjustment, computer-readable recording medium and the mobile terminal of drive signal - Google Patents
Method of adjustment, computer-readable recording medium and the mobile terminal of drive signal Download PDFInfo
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- CN106951128A CN106951128A CN201710322956.7A CN201710322956A CN106951128A CN 106951128 A CN106951128 A CN 106951128A CN 201710322956 A CN201710322956 A CN 201710322956A CN 106951128 A CN106951128 A CN 106951128A
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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
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Abstract
The embodiment of the invention discloses a kind of method of adjustment of drive signal, computer-readable recording medium and mobile terminal.The method of adjustment of the drive signal includes：When detecting the corresponding harmonic frequency of charge pump switches to the generation interference of terminal communication frequency range, corresponding first drive signal of the charge pump switches is obtained；The component signal not waited according to first drive signal, at least two amplitudes of generation；The component signal that at least two amplitude is not waited is overlapped, and obtains the second drive signal, and the spectrum energy of second drive signal is less than first drive signal；The charge pump switches are driven according to second drive signal.The embodiment of the present invention can effectively reduce the interference that the harmonic wave of charge pump switches generation is caused to terminal communication frequency range.
Description
Technical field
Stored the invention belongs to communication technical field, more particularly to a kind of method of adjustment of drive signal, computer-readable
Medium and mobile terminal.
Background technology
Electric charge pump module is included in the touch-screen system of terminal.Touch-screen system can be improved by the electric charge pump module
Antijamming capability.There is switch module in the inside of the electric charge pump module, the switch module with certain working frequency constantly
Carry out switch switching.During constantly switch switching is carried out, switch module can produce the harmonic component of its working frequency.
If the harmonic component is close with the communications band that terminal is current, the communications band of terminal can be interfered.
The content of the invention
The embodiment of the present invention provides a kind of method of adjustment of drive signal, computer-readable recording medium and mobile terminal,
The interference that the harmonic wave of charge pump switches generation is caused to terminal communication frequency range can effectively be reduced.
The embodiment of the present invention provides a kind of method of adjustment of drive signal, including：
When detecting the corresponding harmonic frequency of charge pump switches to the generation interference of terminal communication frequency range, the electric charge is obtained
Corresponding first drive signal of switch pump；
The component signal not waited according to first drive signal, at least two amplitudes of generation；
The component signal that at least two amplitude is not waited is overlapped, and obtains the second drive signal, and described second drives
The spectrum energy of dynamic signal is less than first drive signal；
The charge pump switches are driven according to second drive signal.
A kind of computer-readable recording medium, be stored with computer program, when the computer program is executed by processor
Realize the step in the method for adjustment of drive signal provided in an embodiment of the present invention.
A kind of mobile terminal, including memory, processor, and be stored in the memory and can be in the processor
The computer program of middle operation, realizes driving letter provided in an embodiment of the present invention during computer program described in the computing device
Number method of adjustment in step.
A kind of mobile terminal, including charge pump, radio circuit, processor, the processor and the charge pump, described are penetrated
Frequency circuit is electrically connected with；
The processor is used for corresponding to the radio circuit logical when detecting the corresponding harmonic frequency of charge pump switches
When believing that frequency range produces interference, corresponding first drive signal of the charge pump switches is obtained；
The processor is used for the component signal not waited according to first drive signal, at least two amplitudes of generation；
The processor is used to the component signal that at least two amplitude is not waited being overlapped, and obtains the second driving letter
Number, the spectrum energy of second drive signal is less than first drive signal；
The charge pump is used to be driven the charge pump switches according to second drive signal.
Method of adjustment, computer-readable recording medium and the mobile terminal of drive signal provided in an embodiment of the present invention, when
When the harmonic frequency communications band currently used to terminal for detecting charge pump switches generation is interfered, it can be obtained by terminal
Take corresponding first drive signal of the charge pump switches.Then, terminal can generate at least two according to first drive signal
The component signal that amplitude is not waited, and the component signal of at least two amplitude not etc. is overlapped, obtain the second drive signal.
Second drive signal meets the condition that spectrum energy is less than the first drive signal.Afterwards, terminal can be according to second driving
Signal is driven to the charge pump switches.Because the spectrum energy of the second drive signal is less than the first drive signal, therefore press
The harmonic frequency of charge pump switches generation can be reduced when being driven according to the second drive signal to the charge pump switches to terminal
The interference that communications band is caused.
Brief description of the drawings
Below in conjunction with the accompanying drawings, it is described in detail by the embodiment to the present invention, technical scheme will be made
And its advantage is apparent.
Fig. 1 is the schematic flow sheet of the method for adjustment of drive signal provided in an embodiment of the present invention.
Fig. 2 is the time domain beamformer of the first drive signal provided in an embodiment of the present invention.
When Fig. 3 is the first component signal provided in an embodiment of the present invention, second component signal and the second drive signal
Domain waveform figure.
Fig. 4 three component signals provided in an embodiment of the present invention, the 4th component signal, the 5th component signal and the 3rd drive
The time domain beamformer of dynamic signal.
Fig. 5 the 6th component signals provided in an embodiment of the present invention, the 7th component signal, the 8th component signal and 4 wheel driven
The time domain beamformer of dynamic signal.
Fig. 6 is another schematic flow sheet of the method for adjustment of drive signal provided in an embodiment of the present invention.
Fig. 7 is the structural representation of the adjusting apparatus of drive signal provided in an embodiment of the present invention.
Fig. 8 is another structural representation of the adjusting apparatus of drive signal provided in an embodiment of the present invention.
Fig. 9 is the structural representation of mobile terminal provided in an embodiment of the present invention.
Figure 10 is another structural representation of mobile terminal provided in an embodiment of the present invention.
Embodiment
It refer to schema, wherein identical element numbers represent identical component, principle of the invention is to implement one
Illustrated in appropriate computing environment.The following description is that, based on the illustrated specific embodiment of the invention, it should not be by
It is considered as the limitation present invention other specific embodiments not detailed herein.
It will be detailed below.
Referring to Fig. 1, Fig. 1 is the schematic flow sheet of the method for adjustment of drive signal provided in an embodiment of the present invention, flow
It can include：
In step S101, the generation of terminal communication frequency range is disturbed when detecting charge pump switches corresponding harmonic frequency
When, obtain corresponding first drive signal of the charge pump switches.
Set it is understood that the executive agent of the embodiment of the present invention can be the terminals such as smart mobile phone or panel computer
It is standby.
Such as, there is switch module in the inside of the electric charge pump module of terminal touch screen system, the switch module is with certain
Working frequency constantly carry out switch switching.During constantly switch switching is carried out, the switch module can produce it
The harmonic component of working frequency.When the current communications band of the harmonic component and terminal is close, the harmonic component can be to terminal
Communications band interfere.
In the step S101 of the present embodiment, for example, when the corresponding harmonic wave of charge pump switches for detecting terminal touch screen
When the frequency communications band current to terminal produces interference, terminal can first obtain the current corresponding driving letter of the charge pump switches
Number, i.e. the first drive signal.
In step s 102, according to first drive signal, the component signal that at least two amplitudes of generation are not waited.
In step s 103, the component signal at least two amplitude not waited is overlapped, and obtains the second drive signal,
The spectrum energy of second drive signal is less than first drive signal.
Such as, step S102 and S103 can include：
After corresponding first drive signal of charge pump switches is got, terminal can according to first drive signal,
Generate the component signal that at least two amplitudes are not waited.Then, the component signal that terminal can not wait this at least two amplitude enters
Row superposition, so as to obtain the second drive signal.Second drive signal meets the condition that spectrum energy is less than the first drive signal.
In one embodiment, terminal can obtain the pulsewidth, amplitude, cycle of the first drive signal in step S101,
And the corresponding switch conduction duration threshold value of charge pump switches.It should be noted that during the corresponding switch conduction of charge pump switches
Long threshold value is that the corresponding most short-range missile of charge pump switches leads to duration.The switch conduction duration threshold value can be from the controls of charge pump switches
Obtained in molding block.The various parameters for the charge pump switches that are stored with the control module of charge pump switches.
Afterwards, terminal can generate the component signal that at least two amplitudes are not waited.The component that this at least two amplitude is not waited
Signal can meet following condition：The pulsewidth sum of at least two component signal is equal to the pulsewidth of the first drive signal；Each
The cycle of component signal is equal to the cycle of the first drive signal；One and only one signal at least two component signal
Amplitude is more than or equal to the amplitude of the first drive signal, and the amplitude of other component signals is less than the amplitude of the first drive signal；
And the amplitude is more than or equal to the pulsewidth of the component signal of the first drive signal amplitude more than or equal to charge pump switches correspondence
Switch conduction duration threshold value.
Illustrated below so that terminal generates the component signal that two amplitudes are not waited as an example, such as the two component signals point
Wei not the first component signal and second component signal.Fig. 2 and Fig. 3 are referred to, Fig. 2 is the time domain waveform of the first drive signal, Fig. 3
For the time domain waveform of the first component signal and second component signal, and by after the first component signal and second component Signal averaging
The time domain waveform of the second obtained drive signal.
For example, pulsewidth, cycle and amplitude of the terminal according to the first drive signal got, generate what amplitude was not waited
First component signal and second component signal.The pulsewidth sum of first component signal and second component signal is equal to the first driving letter
Number pulsewidth；The cycle of first component signal and second component signal is equal to the cycle of the first drive signal；Wherein first point
The amplitude for measuring signal is less than the amplitude of the first drive signal, and the amplitude of second component signal is equal to the width of the first drive signal
Degree, and switch conduction duration threshold value of the pulsewidth more than charge pump switches of second component signal.
As shown in Fig. 2 the pulsewidth of the first drive signal is a, amplitude is b, and the cycle is T.So, as shown in figure 3, terminal is given birth to
Into the first component signal pulsewidth a1 and second component signal pulsewidth a2 sums be equal to the first drive signal pulsewidth, i.e. a1
+ a2=a.The cycle of first component signal and second component signal is equal to the cycle T of the first drive signal.First component signal
Amplitude b1 be less than the first drive signal amplitude b, and the amplitude b2 of second component signal be equal to the first drive signal amplitude
b.Also, the pulsewidth a2 of second component signal is more than the switch conduction duration threshold value of charge pump switches.
Afterwards, the first component signal can be overlapped by terminal with second component signal, so as to obtain the second driving letter
Number.The time domain waveform of second drive signal is as shown in Figure 3.
In step S104, the charge pump switches are driven according to second drive signal.
Such as, after the second drive signal is obtained, terminal can be carried out according to the second drive signal to charge pump switches
Driving.
It is understood that the first component signal and second component signal due to forming the second drive signal for being superimposed
Pulsewidth sum be equal to the pulsewidth of the first drive signal, the amplitude of the first component signal is less than the amplitude of the first drive signal, and
The amplitude of second component signal is equal to the amplitude of the first drive signal, while the cycle of the first component signal and second component signal
The cycle of the first drive signal is equal to, therefore the spectrum energy of the second drive signal can be less than (the second drive of the first drive signal
The area of the time domain waveform of dynamic signal is less than in the time domain waveform area of the first drive signal, reflection to spectrum energy i.e. the second drive
The spectrum energy of dynamic signal is less than the spectrum energy of the first drive signal).So, compared to the first drive signal, according to
After two driving signal is driven to charge pump switches, the harmonic component produced by charge pump switches is to terminal communication frequency range
Interference is reduced.
Certainly, in another embodiment, terminal can also generate the component signal of three or more than three.Refer to figure
4, by terminal generate three amplitudes not wait component signal exemplified by, for example respectively three component signal, the 4th component signal and
5th component signal.These three component signals can meet following condition：The pulsewidth a3 of three component signal, the 4th component signal
Pulsewidth a4 and the 5th component signal pulsewidth a5 sums be equal to the first drive signal pulsewidth a, i.e. a3+a4+a5=a；3rd
The amplitude b3 of component signal and the amplitude b4 of the 4th component signal are respectively less than the amplitude b of the first drive signal, the 5th component signal
Amplitude b5 be equal to the amplitude b of the first drive signal, the amplitude b3 of three component signal is more than the amplitude b4 of the 4th component signal；
The cycle of three component signal, the 4th component signal and the 5th component signal can be equal to the cycle T of the first drive signal.Together
When, the pulsewidth a5 of the 5th component signal is equal to the corresponding switch conduction duration threshold value of charge pump switches.
The 3rd driving letter can be obtained after three component signal, the 4th component signal and the 5th component signal are superimposed
Number, its time domain waveform can be as shown in Figure 4.
Referring to Fig. 5, same so that terminal generates the component signal that three amplitudes are not waited as an example, such as respectively the 6th component
Signal, the 7th component signal and the 8th component signal.These three component signals can meet following condition：6th component signal
Pulsewidth a6, the pulsewidth a7 of the 7th component signal and the 8th component signal pulsewidth a8 sums are equal to the pulsewidth a of the first drive signal,
That is a6+a7+a8=a；The amplitude b6 of 6th component signal and the amplitude b8 of the 8th component signal are respectively less than the first drive signal
Amplitude b, the amplitude b7 of the 7th component signal are equal to the amplitude b of the first drive signal, and the amplitude b6 of the 6th component signal is more than the
The amplitude b8 of eight component signals；The cycle of 6th component signal, the 7th component signal and the 8th component signal can be equal to
The cycle T of one drive signal.Meanwhile, the pulsewidth a7 of the 7th component signal is equal to the corresponding switch conduction duration threshold of charge pump switches
Value.
By the 6th component signal, the 7th component signal and the 8th component signal be superimposed after obtain fourth drive signal when
Domain waveform can be as shown in Figure 5.
It is understood that when the component signal that multiple amplitudes that terminal is generated are not waited meets following condition, it is many by this
The drive signal that individual component signal is formed by stacking can have little influence on the service behaviour of charge pump switches：Multiple component signals
Pulsewidth sum be equal to the first drive signal pulsewidth；The cycle of each component signal is equal to the cycle of the first drive signal；Have
And only the amplitude of one-component signal is equal to the amplitude of the first drive signal, and the amplitude of other component signals is respectively less than first
The amplitude of drive signal, and the pulsewidth of the amplitude component signal equal with the first drive signal amplitude is more than or equal to charge pump
Switch corresponding switch conduction duration threshold value.
It should be noted that in other embodiments, the pulsewidth sum of multiple component signals of terminal generation can also
More than or less than the pulsewidth of the first drive signal.Such as, with the 6th component signal in Fig. 5, the 7th component signal and the 8th
Exemplified by component signal.In another embodiment, a6, a7, a8 sum can also be more than or less than the arteries and veins of the first drive signal
Wide a.For example, a numerical values recited is 20, then the numerical values recited of a6, a7, a8 sum can be 21, or 19 etc..As long as meeting
The spectrum energy of the signal obtained after 6th component signal, the 7th component signal and the 8th component signal are superimposed is less than first
This condition of the spectrum energy of drive signal.
In other embodiments, can be with the width of one and only one component signal in multiple component signals of terminal generation
Degree is more than the amplitude of the first drive signal, and the amplitude of other component signals is respectively less than the amplitude of the first drive signal.For example, figure
The amplitude b7 of the 7th component signal can be more than the amplitude b of the first drive signal in 5.For example, b numerical values recited is 25, then
B7 numerical values recited can be 26 or 27 etc..As long as meeting the 6th component signal, the 7th component signal and the 8th component
The spectrum energy of the signal obtained after Signal averaging is less than this condition of the spectrum energy of the first drive signal.
In other embodiments, the cycle of multiple component signals of terminal generation can also be not equal to the first drive signal
Cycle.As long as the spectrum energy for meeting the signal obtained after each component signal is superimposed is less than the frequency of the first drive signal
This condition of spectrum energy.
The present embodiment provide drive signal method of adjustment, when detect charge pump switches generation harmonic frequency to end
When the currently used communications band in end is interfered, corresponding first drive signal of the charge pump switches can be obtained by terminal.
Then, terminal can according to first drive signal generate at least two amplitudes not wait component signal, and by this at least two
The component signal that amplitude is not waited is overlapped, and obtains the second drive signal.Second drive signal meets spectrum energy and is less than the
The condition of one drive signal.Afterwards, terminal can be driven according to second drive signal to the charge pump switches.Due to
The spectrum energy of two driving signal is less than the first drive signal, therefore the charge pump switches are driven according to the second drive signal
The interference that the harmonic frequency of charge pump switches generation is caused to terminal communication frequency range can be reduced when dynamic.
Referring to Fig. 6, another schematic flow sheets of the Fig. 6 for the method for adjustment of drive signal provided in an embodiment of the present invention,
Flow can include：
In step s 201, when detect the corresponding harmonic frequency of charge pump switches to terminal communication frequency range produce interference
When, terminal obtains the pulsewidth of corresponding first drive signal of the charge pump switches, cycle, amplitude, and the charge pump switches pair
The switch conduction duration threshold value answered.
Such as, when touch-screen is in bright screen state and terminal carries out talk business, terminal can first obtain the touch
The current working frequency of the charge pump switches of screen, for example, f0, and communications band used in terminal.Then, terminal can be with
The frequency difference for obtaining each harmonic component in corresponding harmonic spectrum, harmonic spectrum is calculated according to the current working frequency of charge pump
For 2f0,3f0,4f0 ... Nf0.Afterwards, if judging, the frequency of some harmonic component in the harmonic spectrum is in terminal
In currently used communications band, or with the frequency interval of the communications band it is less than or equal to predetermined threshold value, then terminal can
Interference is produced to terminal communication frequency range with the corresponding harmonic frequency of the charge pump switches for determining touch-screen.Now, terminal can be with
Obtain the switch conduction of the pulsewidth of corresponding first drive signal of the charge pump switches, cycle, amplitude, and the charge pump switches
Duration threshold value.
For example, it is b, cycle that the pulsewidth for corresponding first drive signal of the charge pump switches that terminal is got, which is a, amplitude,
For T.
It should be noted that the corresponding switch conduction duration threshold value of the charge pump switches is that charge pump switches are corresponding just
Often most short-range missile required during work leads to duration.The switch conduction duration threshold value can be obtained from the control module of charge pump switches
Take.The various parameters for the charge pump switches that are stored with the control module of charge pump switches.
In step S202, terminal generates the component signal that at least two amplitudes are not waited, what at least two amplitude was not waited
Component signal meets condition：The pulsewidth sum of at least two component signal is equal to the pulsewidth of the first drive signal, each component letter
Number cycle be equal to one and only one signal in cycle of the first drive signal, at least two component signal amplitude it is big
In or equal to the first drive signal amplitude, and amplitude be more than or equal to the first drive signal amplitude component signal pulsewidth it is big
In or equal to switch conduction duration threshold value.
In step S203, the component signal that at least two amplitude is not waited is overlapped by terminal, obtains the second driving
Signal, the spectrum energy of second drive signal is less than the first drive signal.
Such as, step S202 and S203 can include：
Getting the pulsewidth a of corresponding first drive signal of charge pump switches, cycle T, amplitude b, and the charge pump
After the switch conduction duration threshold value of switch, terminal can generate the component signal that two amplitudes are not waited, such as respectively first point
Measure signal and second component signal.The component signal that the two amplitudes are not waited meets following condition：First component signal and second
The pulsewidth sum of component signal is equal to the pulsewidth of the first drive signal；The cycle of first component signal and second component signal is impartial
In the cycle of the first drive signal；The amplitude of one and only one signal is more than or equal to the first driving in the two component signals
The amplitude of signal, such as amplitude of second component signal are equal to the amplitude of the first drive signal, and the amplitude of the first component signal is small
In the amplitude of the first drive signal.Also, the pulsewidth of second component signal is more than the corresponding switch conduction duration of charge pump switches
Threshold value.
For example, the pulsewidth of the first component signal is a1, amplitude is b1, and the cycle is T1.The pulsewidth of second component signal is a2,
Amplitude is b2, and the cycle is T2.So, a1+a2=a, b1<B, b2=b, T1=T2=T.Also, b2 is more than or equal to charge pump
Switch corresponding switch conduction duration threshold value.That is, the duration shared by the pulsewidth of second component signal is more than or equal to charge pump
Most short-range missile needed for switch leads to duration.
The time domain waveform of first component signal and second component signal can be as shown in Figure 2.
After the first component signal and second component signal is generated, terminal can be by the first component signal and second point
Amount signal is overlapped, and obtains the second drive signal.It is understood that due to forming the of the second drive signal for being superimposed
The pulsewidth sum of one component signal and second component signal is equal to the pulsewidth of the first drive signal, and the amplitude of the first component signal is small
In the amplitude of the first drive signal, and the amplitude of second component signal is equal to the amplitude of the first drive signal, while the first component
The cycle of signal and second component signal is equal to the cycle of the first drive signal, therefore the spectrum energy meeting of the second drive signal
Less than the first drive signal (area of the time domain waveform of the second drive signal be less than the first drive signal time domain waveform area,
Reflect on spectrum energy that the i.e. spectrum energy of the second drive signal is less than the spectrum energy of the first drive signal).
The time domain waveform of second drive signal can be as shown in Figure 2.
In step S204, terminal is driven according to second drive signal to charge pump switches.
Such as, after the second drive signal is obtained, terminal just can be according to electric charge of second drive signal to touch-screen
Switch pump is driven.That is, the drive signal of charge pump switches is switched into the second drive signal by the first drive signal.
It is understood that because the spectrum energy of the second drive signal is less than the first drive signal, so compared to the
One drive signal, after being driven according to the second drive signal to charge pump switches, the harmonic wave produced by charge pump switches
Interference of the component to terminal communication frequency range is reduced.
In step S205, when detecting communications band and changing, terminal determines the communications band after change.
In step S206, it will not be produced if judging the harmonic frequency of the first drive signal with the communications band after the change
Raw interference, then the drive signal of the charge pump switches is switched to the first drive signal by terminal by the second drive signal.
Such as, step S205 and S206 can include：
It is adjusted to by the drive signal of the charge pump switches of touch-screen by the first drive signal after the second drive signal,
Terminal can be detected to its used communications band.When the communications band for detecting terminal changes, terminal can
First to determine used communications band after change.Then, terminal may determine that the harmonic wave point produced by the first drive signal
Whether amount can produce interference to the communications band after the change.
If it is judged that the harmonic component produced by the first drive signal will not be produced to the communications band after the change and done
Disturb, then the drive signal of its touch-screen charge pump switches can be switched back into the first drive signal by terminal.
It is understood that the drive signal of the charge pump switches of touch-screen is switched back into the first drive signal to ensure
The service behaviour of the charge pump switches is recovered completely.
If it is judged that the harmonic component produced by the first drive signal still can be produced to the communications band after the change
Interference, then terminal can be continuing with the second drive signal to drive charge pump switches, so as to reduce charge pump switches generation
The interference that is caused to communications band of harmonic component.
In one embodiment, the embodiment of the present invention can also comprise the following steps：
At the end of the communication service of terminal is detected, control terminal is carried out using the first drive signal to charge pump switches
Driving.
Such as, terminal detects user and is over talk business, then terminal can be by the charge pump switches of touch-screen
Drive signal the first drive signal is switched back into by the second drive signal.
It is understood that the drive signal of the charge pump switches of touch-screen is switched back into the first drive signal to ensure
The service behaviour of the charge pump switches is recovered completely.
Referring to Fig. 7, structural representations of the Fig. 7 for the adjusting apparatus of drive signal provided in an embodiment of the present invention.Driving
The adjusting apparatus 300 of signal can include：Acquisition module 301, generation module 302, laminating module 303, and drive module
304。
Acquisition module 301, for dry to the generation of terminal communication frequency range when detecting the corresponding harmonic frequency of charge pump switches
When disturbing, corresponding first drive signal of the charge pump switches is obtained.
Such as, when touch-screen is in bright screen state and terminal carries out talk business, terminal can first obtain the touch
The current working frequency of the charge pump switches of screen, for example, f0, and communications band used in terminal.Then, terminal can be with
The frequency difference for obtaining each harmonic component in corresponding harmonic spectrum, harmonic spectrum is calculated according to the current working frequency of charge pump
For 2f0,3f0,4f0 ... Nf0.Currently make in terminal if judging the frequency of some harmonic component in the harmonic spectrum
In communications band, or with the frequency interval of the communications band it is less than or equal to predetermined threshold value, then terminal can be determined
The corresponding harmonic frequency of charge pump switches for going out touch-screen produces interference to terminal communication frequency range.Now, the acquisition module of terminal
301 can first obtain charge pump switches current corresponding drive signal, i.e. the first drive signal of touch-screen.
For example, acquisition module 301 can obtain the pulsewidth, amplitude, cycle of the first drive signal, and touch-screen charge pump
The switch conduction duration threshold value of switch.
Generation module 302, for the component signal not waited according to first drive signal, at least two amplitudes of generation.
Laminating module 303, the component signal at least two amplitude not to be waited is overlapped, and obtains the second driving
Signal, the spectrum energy of second drive signal is less than first drive signal.
Such as, after corresponding first drive signal of charge pump switches that acquisition module 301 gets touch-screen, generation
Module 302 can generate the component signal that at least two amplitudes are not waited according to first drive signal.It is then possible to by terminal
Laminating module 303 by this at least two amplitude not wait component signal be overlapped, so as to obtain the second drive signal.This
Two driving signal meets the condition that spectrum energy is less than the first drive signal.
In one embodiment, acquisition module 301 can obtain the pulsewidth, amplitude, cycle of the first drive signal, and
The corresponding switch conduction duration threshold value of charge pump switches.It should be noted that the corresponding switch conduction duration threshold of charge pump switches
Value is the logical duration of most short-range missile needed for charge pump switches.The switch conduction duration threshold value can be from the control moulds of charge pump switches
Obtained in block.The various parameters for the charge pump switches that are stored with the control module of charge pump switches.
Afterwards, generation module 302 can be according to the pulsewidth of the first drive signal, amplitude, cycle and charge pump switches pair
The switch conduction duration threshold value answered, the component signal that at least two amplitudes of generation are not waited.The component that this at least two amplitude is not waited
Signal can meet following condition：The pulsewidth sum of at least two component signal is equal to the pulsewidth of the first drive signal；Each
The cycle of component signal is equal to the cycle of the first drive signal；One and only one signal at least two component signal
Amplitude is more than or equal to the amplitude of the first drive signal, and the amplitude is more than or equal to the component letter of the first drive signal amplitude
Number pulsewidth be more than or equal to the corresponding switch conduction duration threshold value of charge pump switches.
For example, generation module 302 generates the first component signal and second component signal that amplitude is not waited.First component is believed
Number and second component signal pulsewidth sum be equal to the first drive signal pulsewidth；First component signal and second component signal
Cycle is equal to the cycle of the first drive signal；Wherein the amplitude of the first component signal is less than the amplitude of the first drive signal, and
The amplitude of second component signal is equal to the amplitude of the first drive signal, and the pulsewidth of second component signal is more than charge pump switches
Switch conduction duration threshold value.
Then, the first component signal and second component signal can be overlapped by laminating module 303, so as to obtain second
Drive signal.
Drive module 304, for being driven according to second drive signal to the charge pump switches.
Such as, after the second drive signal is obtained, the drive module 304 of terminal can be according to second drive signal pair
The charge pump switches of touch-screen are driven.
It should be noted that in other embodiments, the pulsewidth sum for multiple component signals that generation module 302 is generated
The pulsewidth of the first drive signal can also be more than or less than.Such as, with the 6th component signal in Fig. 5, the 7th component signal
Exemplified by the 8th component signal.In one embodiment, a6, a7, a8 sum can also be more than or less than the first drive signal
Pulsewidth a.For example, a numerical values recited is 20, then the numerical values recited of a6, a7, a8 sum can be 21, or 19 etc..As long as
The spectrum energy for meeting the signal obtained after being superimposed the 6th component signal, the 7th component signal and the 8th component signal is less than
This condition of the spectrum energy of first drive signal.
In other embodiments, can be with one and only one component in multiple component signals that generation module 302 is generated
The amplitude of signal is more than the amplitude of the first drive signal.For example, the amplitude b7 of the 7th component signal can be more than the first drive in Fig. 5
The amplitude b of dynamic signal.For example, b numerical values recited is 25, then b7 numerical values recited can be 26 or 27 etc..As long as full
The spectrum energy of signal that foot is obtained after being superimposed the 6th component signal, the 7th component signal and the 8th component signal is less than the
This condition of the spectrum energy of one drive signal.
In other embodiments, the cycle for multiple component signals that generation module 302 is generated can also be not equal to first
The cycle of drive signal.As long as the spectrum energy for meeting the signal obtained after each component signal is superimposed is less than the first driving
This condition of the spectrum energy of signal.
Also referring to Fig. 8, Fig. 8 is another structural representation of the adjusting apparatus of drive signal provided in an embodiment of the present invention
Figure.In one embodiment, the adjusting apparatus 300 of drive signal can also include：Control module 305 and handover module 306.
Control module 305, at the end of the communication service of the terminal is detected, control terminal to use described first
Drive signal is driven to the charge pump switches.
Such as, terminal detects user and is over talk business, then control module 305 can be by the electric charge of touch-screen
The drive signal of switch pump switches back into the first drive signal by the second drive signal.
It is understood that the drive signal of the charge pump switches of touch-screen is switched back into the first drive signal to ensure
The service behaviour of the charge pump switches is recovered completely.
Handover module 306, for when the communications band for detecting the terminal changes, it is determined that the communication after change
Frequency range；Interference will not be produced with the communications band after the change if judging the harmonic frequency of first drive signal,
The drive signal of the charge pump switches is switched into first drive signal by second drive signal.
Such as, the drive signal of the charge pump switches of touch-screen is adjusted to by the first drive signal in drive module 304
After second drive signal, terminal can be detected to its used communications band.When the communications band for detecting terminal
When changing, handover module 306 can first determine communications band used in after change.Then, handover module 306 can be with
Whether the harmonic component produced by judging the first drive signal can produce interference to the communications band after the change.
If it is judged that the harmonic component produced by the first drive signal will not be produced to the communications band after the change and done
Disturb, then the drive signal of its touch-screen charge pump switches can be switched back into the first drive signal by handover module 306.
It is understood that the drive signal of the charge pump switches of touch-screen is switched back into the first drive signal to ensure
The service behaviour of the charge pump switches is recovered completely.
If it is judged that the harmonic component produced by the first drive signal still can be produced to the communications band after the change
Interference, then terminal can be continuing with the second drive signal to drive charge pump switches, so as to reduce charge pump switches generation
The interference that is caused to communications band of harmonic component.
The embodiment of the present invention also provides a kind of computer-readable recording medium, is stored thereon with computer program, the meter
Calculation machine program realizes the step in the method for adjustment of drive signal provided in an embodiment of the present invention when being executed by processor.
The embodiment of the present invention also provides a kind of mobile terminal, and the mobile terminal can include memory, processor, Yi Jicun
Storage is in the memory and can manage the computer program run in device in this place, is realized during the computing device computer program
Step in the method for adjustment of drive signal provided in an embodiment of the present invention.
For example, the mobile terminal can be panel computer or smart mobile phone etc..Referring to Fig. 9, Fig. 9 is the embodiment of the present invention
The mobile terminal structure schematic diagram of offer.The mobile terminal 500 can include radio frequency (RF, Radio Frequency) circuit
501st, the memory 502, input block 503, display unit of one or more computer-readable recording mediums are included
504th, Wireless Fidelity (WiFi, Wireless Fidelity) module 505, include one or more than one processing core
The grade part of processor 506.It will be understood by those skilled in the art that the mobile terminal structure shown in Fig. 9 is not constituted to movement
The restriction of terminal, can include than illustrating more or less parts, either combine some parts or different part cloth
Put.
Radio circuit 501 can be used for receive and send messages, or in communication process signal reception and transmission, especially, by base station
Downlink information receive after, transfer to one or more than one processor 506 handled；In addition, being sent up data are related to
To base station.
Memory 502 can be used for storage application program and data.Include and can hold in the application program that memory 502 is stored
Line code.Application program can constitute various functions module.Processor 506 is stored in the application journey of memory 502 by operation
Sequence, so as to perform various function application and data processing.
Input block 503 can be used for numeral, character information or the user's characteristic information (such as fingerprint) for receiving input, and
Keyboard, mouse, action bars, optics or the trace ball signal relevant with user's setting and function control is produced to input.One
In embodiment, input block 503 may include Touch sensitive surface and other input equipments.Touch sensitive surface, also referred to as touch display screen
Or Trackpad.
Display unit 504 can be used for display by the information of user input or be supplied to the information and mobile terminal of user
Various graphical user interface, these graphical user interface can be made up of figure, text, icon, video and its any combination.
Wireless Fidelity (WiFi) belongs to short range wireless transmission technology, and mobile terminal can be with by wireless fidelity module 505
Help user to send and receive e-mail, browse webpage and access streaming video etc., it has provided the user wireless broadband internet
Access.
Processor 506 is the control centre of mobile terminal, utilizes each of various interfaces and the whole mobile terminal of connection
Individual part, by operation or performs and is stored in application program in memory 502, and calls and be stored in memory 502
Data, perform the various functions and processing data of mobile terminal, so as to carry out integral monitoring to mobile terminal.
Although not shown in Fig. 9, mobile terminal can also include camera, bluetooth module etc., will not be repeated here.
Specifically in the present embodiment, processor 506 in mobile terminal can according to following instruction, by one or one with
On the corresponding executable code of process of application program be loaded into memory 502, and by processor 506 is stored in run
Application program in memory 502, so as to realize various functions：
When detecting the corresponding harmonic frequency of charge pump switches to the generation interference of terminal communication frequency range, the electric charge is obtained
Corresponding first drive signal of switch pump；The component signal not waited according to first drive signal, at least two amplitudes of generation；
The component signal that at least two amplitude is not waited is overlapped, and obtains the second drive signal, second drive signal
Spectrum energy is less than first drive signal；The charge pump switches are driven according to second drive signal.
In one embodiment, processor 506 is performing the corresponding first driving letter of the acquisition charge pump switches
Number step when, can include：Obtain the pulsewidth of corresponding first drive signal of the charge pump switches.So processor 506
When performing the step of the component signal not waited according to first drive signal, at least two amplitudes of generation, it can wrap
Include：The component signal not waited according to the pulsewidth of first drive signal, at least two amplitudes of generation, at least two amplitude
The pulsewidth sum for the component signal not waited is equal to the pulsewidth of first drive signal.
In one embodiment, processor 506 can also carry out：Obtain the corresponding first driving letter of the charge pump switches
Number cycle the step of.So processor 506, can be with when performing the step for the component signal that at least two amplitudes of generation are not waited
Including：The component signal that at least two amplitudes are not waited is generated, the cycle of each component signal is equal to the first driving letter
Number cycle.
In one embodiment, processor 506 can also carry out：Obtain the corresponding first driving letter of the charge pump switches
Number amplitude the step of.So processor 506, can be with when performing the step for the component signal that at least two amplitudes of generation are not waited
Including：Generating in the component signal that at least two amplitudes are not waited, the component signal that at least two amplitude is not waited has and only has
The amplitude of one signal is more than or equal to the amplitude of first drive signal.
In one embodiment, processor 506 can also carry out：When obtaining the corresponding switch conduction of the charge pump switches
The step of long threshold value.So processor 506 can be wrapped when performing the step for the component signal that at least two amplitudes of generation are not waited
Include：Generate has and only one in the component signal that at least two amplitudes are not waited, the component signal that at least two amplitude is not waited
The amplitude of individual signal is more than or equal to the amplitude of first drive signal, and amplitude is more than or equal to the first drive signal amplitude
Component signal pulsewidth be more than or equal to the switch conduction duration threshold value.
Processor 506 can also carry out following steps：At the end of the communication service of the terminal is detected, control terminal
The charge pump switches are driven using first drive signal.
Processor 506 can also carry out following steps：When the communications band for detecting the terminal changes, it is determined that
Communications band after change；If judging, the harmonic frequency of first drive signal will not be with the communications band after the change
Interference is produced, then the drive signal of the charge pump switches is switched into first driving by second drive signal believes
Number.
Referring to Fig. 10, Figure 10 is the structural representation of mobile terminal provided in an embodiment of the present invention.The embodiment of the present invention
The mobile terminal 600 provided, including charge pump 601, radio circuit 602, processor 603.
Charge pump 601 is a kind of DC-to-DC converter, and it can be realized by the continuous switching of internal switch module
Input voltage is raised and lowered, so as to obtain required output voltage.For example, the touch-screen system in mobile terminal there is
Electric charge pump module.
Radio circuit 602 be used for receive and send messages, or in communication process signal reception and transmission, especially, by base station
After downlink information is received, transfer to one or more than one processor 603 is handled；In addition, being sent to up data are related to
Base station.
Processor 603 is the control centre of mobile terminal, utilizes each of various interfaces and the whole mobile terminal of connection
Individual part, performs various functions and the data processing of mobile terminal, so as to carry out integral monitoring to mobile terminal.
In addition, mobile terminal can also be included such as wireless fidelity module, memory, bluetooth module, power supply, the first-class mould of shooting
Block, will not be repeated here.
In embodiments of the present invention, the processor 603 electrically connects with the charge pump 601, the radio circuit 602
Connect.
The processor 603, which is used to work as, detects the corresponding harmonic frequency of charge pump switches to 602 pairs of the radio circuit
When the communications band answered produces interference, corresponding first drive signal of the charge pump switches is obtained；
The processor 603 is used for the component signal not waited according to first drive signal, at least two amplitudes of generation；
The processor 603 is used to the component signal that at least two amplitude is not waited being overlapped, and obtains the second drive
Dynamic signal, the spectrum energy of second drive signal is less than first drive signal；
The charge pump 601 is used to be driven the charge pump switches according to second drive signal.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, the detailed description of the method for adjustment above with respect to drive signal is may refer to, here is omitted.
The tune of drive signal in the adjusting apparatus and foregoing embodiments of the drive signal provided in an embodiment of the present invention
Adjusting method belongs to same design, and the method for adjustment that the drive signal can be run in the adjusting apparatus of the drive signal is real
The either method provided in example is applied, it implements the method for adjustment embodiment that process refers to the drive signal, herein no longer
Repeat.
It should be noted that for the method for adjustment of drive signal described in the embodiment of the present invention, this area common test
Personnel are appreciated that to realize all or part of flow of the method for adjustment of drive signal described in the embodiment of the present invention, can be by
Computer program controls the hardware of correlation to complete, and the computer program can be stored in a computer read/write memory medium
In, such as storage in memory, and by least one computing device, may include drive signal as described in the process of implementation
The flow of the embodiment of method of adjustment.Wherein, described storage medium can be magnetic disc, CD, read-only storage (ROM, Read
Only Memory), random access memory (RAM, Random Access Memory) etc..
For the adjusting apparatus of the drive signal of the embodiment of the present invention, its each functional module can be integrated in one
In process chip or modules are individually physically present, can also two or more modules be integrated in a mould
In block.Above-mentioned integrated module can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.
If the integrated module is realized using in the form of software function module and is used as independent production marketing or in use, can also
It is stored in a computer read/write memory medium, the storage medium is for example read-only storage, disk or CD etc..
A kind of method of adjustment of the drive signal provided above the embodiment of the present invention, device, computer-readable storage
Medium and mobile terminal are described in detail, and specific case used herein is entered to the principle and embodiment of the present invention
Elaboration is gone, the explanation of above example is only intended to help and understands the method for the present invention and its core concept；Simultaneously for this
The technical staff in field, according to the thought of the present invention, will change, to sum up in specific embodiments and applications
Described, this specification content should not be construed as limiting the invention.
Claims (10)
1. a kind of method of adjustment of drive signal, it is characterised in that methods described includes：
When detecting the corresponding harmonic frequency of charge pump switches to the generation interference of terminal communication frequency range, obtain the charge pump and open
Close corresponding first drive signal；
The component signal not waited according to first drive signal, at least two amplitudes of generation；
The component signal that at least two amplitude is not waited is overlapped, and obtains the second drive signal, the second driving letter
Number spectrum energy be less than first drive signal；
The charge pump switches are driven according to second drive signal.
2. the method for adjustment of drive signal according to claim 1, it is characterised in that the acquisition charge pump switches
Corresponding first drive signal, including：
Obtain the pulsewidth of corresponding first drive signal of the charge pump switches；
The component signal not waited according to first drive signal, at least two amplitudes of generation, including：According to described first
The pulsewidth of drive signal, the component signal that at least two amplitudes of generation are not waited, the component signal that at least two amplitude is not waited
Pulsewidth sum be equal to first drive signal pulsewidth.
3. the method for adjustment of drive signal according to claim 1, it is characterised in that methods described also includes：
Obtain the cycle of corresponding first drive signal of the charge pump switches；
The component signal that at least two amplitudes of the generation are not waited includes：The component signal that at least two amplitudes are not waited is generated, respectively
The cycle of the component signal is equal to the cycle of first drive signal.
4. the method for adjustment of drive signal according to claim 1, it is characterised in that methods described also includes：
Obtain the amplitude of corresponding first drive signal of the charge pump switches；
The component signal that at least two amplitudes of the generation are not waited includes：Generate the component signal that at least two amplitudes are not waited, institute
The amplitude for stating one and only one component signal in the component signal that at least two amplitudes are not waited is more than or equal to the described first drive
The amplitude of dynamic signal.
5. the method for adjustment of drive signal according to claim 4, it is characterised in that methods described also includes：
Obtain the corresponding switch conduction duration threshold value of the charge pump switches；
The component signal that at least two amplitudes of the generation are not waited includes：Generate the component signal that at least two amplitudes are not waited, institute
The amplitude for stating one and only one component signal in the component signal that at least two amplitudes are not waited is more than or equal to the described first drive
The amplitude of dynamic signal, and amplitude is more than or equal to the pulsewidth of the component signal of first drive signal amplitude more than or equal to institute
State switch conduction duration threshold value.
6. the method for adjustment of drive signal according to claim 1, it is characterised in that methods described also includes：
At the end of the communication service of the terminal is detected, control the terminal using first drive signal to the electricity
Lotus switch pump is driven.
7. the method for adjustment of drive signal according to claim 1, it is characterised in that methods described also includes：
When the communications band for detecting the terminal changes, it is determined that the communications band after change；
Interference will not be produced with the communications band after the change if judging the harmonic frequency of first drive signal, will
The drive signal of the charge pump switches switches to first drive signal by second drive signal.
8. a kind of computer-readable recording medium, be stored with computer program, it is characterised in that the computer program is processed
Device realizes the step in the method for adjustment of any described drive signal in claim 1 to 7 when performing.
9. a kind of mobile terminal, including memory, processor, and it is stored in the memory and can be in the processor
The computer program of operation, it is characterised in that realized described in the computing device during computer program in claim 1 to 7
Step in the method for adjustment of any described drive signal.
10. a kind of mobile terminal, including charge pump, radio circuit, processor, it is characterised in that the processor and the electricity
Lotus pump, the radio circuit are electrically connected with；
The processor, which is used to work as, detects the corresponding harmonic frequency of charge pump switches communication frequency corresponding to the radio circuit
When section produces interference, corresponding first drive signal of the charge pump switches is obtained；
The processor is used for the component signal not waited according to first drive signal, at least two amplitudes of generation；
The processor is used to the component signal that at least two amplitude is not waited being overlapped, and obtains the second drive signal,
The spectrum energy of second drive signal is less than first drive signal；
The charge pump is used to be driven the charge pump switches according to second drive signal.
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