CN108234727A - A kind of noise-reduction method and mobile terminal - Google Patents
A kind of noise-reduction method and mobile terminal Download PDFInfo
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- CN108234727A CN108234727A CN201711230387.XA CN201711230387A CN108234727A CN 108234727 A CN108234727 A CN 108234727A CN 201711230387 A CN201711230387 A CN 201711230387A CN 108234727 A CN108234727 A CN 108234727A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
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- Acoustics & Sound (AREA)
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Abstract
The present invention provides a kind of noise-reduction method and mobile terminal, the method includes：In communication process, the noise parameters that the capacitance of the mobile terminal makes a noise are determined；Compensation wave is generated according to the noise parameters, wherein, the opposite in phase of noise that the capacitance of compensation wave and the mobile terminal is sent out；Export the compensation wave, the noise sent out with the capacitance for offsetting the mobile terminal.On the basis of the capacitance of mobile terminal makes a noise, the sound of the antiphase of the noise sent out with the capacitance of mobile terminal is sent out, can reach and eliminate the noise that the capacitance of mobile terminal is sent out, promote the usage experience of user.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of noise-reduction method and mobile terminal.
Background technology
Mobile terminal PCB (Printed Circuit Board, printed circuit board) arrangement space is more and more nervous.Due to
Multi-layer ceramic capacitance has many advantages, such as that encapsulation is small, high frequency characteristics is excellent, temperature characterisitic is reliably at low cost, therefore it is widely used
In mobile terminal.
And multi-layer ceramic capacitance is susceptible to capacitance sound there are a drawback, with mobile terminal appearance design increasingly
Thin, capacitance sound is also easier to be perceived by the user.Especially when mobile terminal is under 2G patterns, radio-frequency power amplifier can be with
217HZ frequencies take out electricity, and so as to which main power voltage be caused to be shaken with 217HZ ripples, the capacitance on pcb board is because piezoelectric effect also can
It is shaken with 217HZ, so as to generate the appreciable capacitance sound of user.
It is existing since the noise that capacitance is sent out is that capacitance external electrode drives printed circuit board vibration sounding by scolding tin
The scheme for reducing capacitance sounding is that multi-layer ceramic capacitance is reduced to be directly attached to as far as possible on the scolding tin of capacitance external electrode, is only existed
There is a thin layer of tin cream in the junction of capacitance external electrode and gasket, and PCB is connected by gasket with noise reduction capacitance.When capacitance is sent out
During raw deformation, the big part of deformation quantity is not easy to involve PCB to be vibrated together, so as to reduce the deformation quantity of PCB, is reached and is reduced capacitance sound
Purpose, but above-mentioned noise-reduction method still can not thoroughly eliminate noise, still influence the usage experience of user.
Invention content
The embodiment of the present invention provides a kind of noise-reduction method and mobile terminal, in the prior art to capacitance sound to solve
The halfway problem of noise reduction.
In order to solve the above-mentioned technical problem, the invention is realized in this way：A kind of noise-reduction method, including：In communication process
In, determine the noise parameters that the capacitance of the mobile terminal makes a noise；Compensation wave is generated according to the noise parameters, wherein,
The opposite in phase of noise that the capacitance of the compensation wave and the mobile terminal is sent out；The compensation wave is exported, with described in counteracting
The noise that the capacitance of mobile terminal is sent out.
In a first aspect, the embodiment of the present invention additionally provides a kind of mobile terminal, the mobile terminal includes：First determining mould
Block, the noise parameters that the capacitance in communication process, determining the mobile terminal makes a noise；Generation module, for according to
Compensation wave is generated according to the noise parameters, wherein, the phase of noise that the capacitance of compensation wave and the mobile terminal is sent out
On the contrary；Output module, for exporting the compensation wave, the noise sent out with the capacitance for offsetting the mobile terminal.
Second aspect, an embodiment of the present invention provides a kind of mobile terminals, including processor, memory and are stored in described
It is real when the computer program is performed by the processor on memory and the computer program that can run on the processor
Now the step of noise-reduction method.
The third aspect, an embodiment of the present invention provides a kind of computer readable storage medium, the computer-readable storage
The step of computer program is stored on medium, the noise-reduction method is realized when the computer program is executed by processor.
In embodiments of the present invention, by communication process, determining that the noise that the capacitance of mobile terminal makes a noise is joined
Number；According to noise parameters generation compensation wave, output compensation wave, the noise sent out with the capacitance for offsetting mobile terminal.Mobile whole
On the basis of the capacitance at end makes a noise, the sound of the antiphase of the noise sent out with the capacitance of mobile terminal, Neng Gouda are sent out
The noise sent out to the capacitance for eliminating mobile terminal promotes the usage experience of user.
Description of the drawings
Fig. 1 is a kind of step flow chart of noise-reduction method of the embodiment of the present invention one；
Fig. 2 is a kind of step flow chart of noise-reduction method of the embodiment of the present invention two；
Fig. 3 is a kind of step flow chart of noise-reduction method of the embodiment of the present invention three；
Fig. 4 is a kind of structure diagram of mobile terminal of the embodiment of the present invention four；
Fig. 5 is a kind of structure diagram of mobile terminal of the embodiment of the present invention five；
Fig. 6 is a kind of hardware architecture diagram of mobile terminal of the embodiment of the present invention six.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment one
With reference to Fig. 1, a kind of step flow chart of noise-reduction method of the embodiment of the present invention one is shown.
Noise-reduction method provided in an embodiment of the present invention includes the following steps：
Step 101：In communication process, the noise parameters that the capacitance of mobile terminal makes a noise are determined.
It converses for 2G patterns, the bulky capacitor near receiver is main interference source, and each capacitance is with main power source
It stirs and shakes, then noise parameters of the noise parameters that the capacitance of mobile terminal makes a noise for the bulky capacitor near receiver.
Wherein, the noise parameters of the capacitance of mobile terminal include：Level of noise, noise phase value, frequency noise value etc..Noise
Parameter presets storage in the terminal, when detecting that mobile terminal be in 2G calls, is then stored from the corresponding of mobile terminal
Location determination noise parameters.
Step 102：According to noise parameters generation compensation wave.
Wherein, compensation wave is the wave of noise opposite in phase sent out with the capacitance of mobile terminal.
Such as：When frequency noise value is 217Hz, phase value 0, amplitude 3, then the frequency values of compensation wave exported are
217Hz, phase value 180, the phase of the phase value and compensation wave of the noise that the capacitance of amplitude 3, only mobile terminal is sent out
Value by noise cancellation on the contrary, just can achieve the effect that noise reduction.
Step 103：Output compensation wave, the noise sent out with the capacitance for offsetting mobile terminal.
In embodiments of the present invention, by communication process, determining that the noise that the capacitance of mobile terminal makes a noise is joined
Number；According to noise parameters generation compensation wave, output compensation wave, the noise sent out with the capacitance for offsetting mobile terminal.Mobile whole
On the basis of the capacitance at end makes a noise, the sound of the antiphase of the noise sent out with the capacitance of mobile terminal, Neng Gouda are sent out
The noise sent out to the capacitance for eliminating mobile terminal promotes the usage experience of user.
Embodiment two
With reference to Fig. 2, a kind of step flow chart of noise-reduction method of the embodiment of the present invention two is shown.
The embodiment of the present invention is made an uproar by the realization of PC, mobile terminal and microphone to what the capacitance of mobile terminal made a noise
The detection of sound parameter, record.Wherein, PC is connect with microphone, and mobile terminal passes through USB (Universal Serial with PC
Bus, universal serial bus) it connects, PC is connect with microphone, and the noise that microphone sends out the capacitance of mobile terminal receives
Detection.
Noise-reduction method provided in an embodiment of the present invention includes the following steps：
Step 201：Receive level of noise, noise phase value and the frequency noise value for the capacitance noise that PC is sent.
Wherein, the level of noise of capacitance noise, noise phase value and frequency noise value are detected, and pass through wheat by microphone
Gram wind is sent to PC.
Radio-frequency power amplifier is the important component of mobile terminal, and in the front stage circuits of mobile terminal, modulation is shaken
RF signal power very little caused by circuit is swung, is needed by one buffer stage of a series of amplification, interstage amplifier section, final stage work(
Rate amplifying stage after obtaining enough radio-frequency powers, can just be fed on antenna and radiate, so each mobile terminal is penetrated
Frequency power has difference.Under the working condition of the radio-frequency power of current mobile terminal, microphone detects the capacitance of mobile terminal
Level of noise, noise phase value and the frequency noise value to make a noise is sent to PC.
The vibration of the capacitance of mobile terminal is mainly vibrated by pcb board vibration and the air gap, is vibrated by the air gap
There are certain energy value, GSM (Global System for Mobile Communication, global system for mobile communications) frame
It is divided into 8 time slots, each time slot 0.577us, so per frame 0.577*8=4.615ms, its corresponding frequency is 216.7HZ.It penetrates
During the work of frequency power amplifier, per 4.615ms, work once extracts high current from battery-end, so as to cause Voltage Drop so that all
Phase property causes voltage dithering.Therefore periodically capacitance sounding ceiling capacity dot frequency caused by voltage fluctuation is also
216.7HZ。
And for current mobile terminal, the noise formula y=Asin (ω t+ ψ) of the capacitance of mobile terminal, air borne speed
It spends for 314m/s, 2 π/ω=4.615ms, start-phase ψ=0 or ψ=180；By wavelength formula λ=u/f, corresponding frequency
During for 216.7HZ, the ≈ 1.4m of λ=314/216.7, and general solid body should voice transmission sound faster, wavelength X can be more
It is long.The length r of general capacitance to receiver is millimeter level length, can be ignored relative to λ, then it is whole to movement can to ignore capacitance
Hold the distance r of receiver, it is believed that nearby nearby air starts simultaneously at vibrations to receiver for air and capacitance, then the capacitance of mobile terminal
Vibration mainly pass through pcb board.
And the time that radio-frequency power amplifier is opened is also known conditions, the initial phase of the noise of capacitance caused by
Can only be ψ=0 or ψ=180.The level of noise to be made a noise by the capacitance of microphone detection mobile terminal, noise phase value
It is 0 or 180, frequency noise value is 216Hz.
Step 202：Level of noise, noise phase value and the frequency noise value that capacitance is made a noise send out as capacitance and make an uproar
The noise parameters of sound.
The corresponding level of noise of noise, noise phase value and the frequency noise value that PC sends out the capacitance of mobile terminal are sent
To mobile terminal, mobile terminal is written in the noise parameters that capacitance is made a noise, and joins after dispatching from the factory for mobile terminal according to noise
Number generation compensation wave, offsets the noise that capacitance is sent out.
It should be noted that step 201 is for the corresponding noise parameters of generation capacitance and corresponding by capacitance to step 202
The detailed process of mobile terminal is written in noise parameters.During specific implementation, sent out if having had been written into capacitance in mobile terminal
The noise parameters of noise need not then perform step 201 to step 202.
Step 203：In communication process, the noise parameters that the capacitance of mobile terminal makes a noise are determined.
When detecting that mobile terminal is in 2G calls, then it is previously written from the acquisition of the correspondence storage location of mobile terminal
The noise parameters that the capacitance of mobile terminal makes a noise.
Wherein, noise parameters include：The capacitance of mobile terminal, which makes a noise, corresponding level of noise, noise phase value and makes an uproar
The voice frequency value or corresponding phase value of compensation wave, frequency values and range value.
Step 204：Determine the reverse phase place value of noise phase value.
When noise phase value is 0, it is determined that the reverse phase place value of noise phase value is 180；When noise phase value is 180
When, it is determined that the reverse phase place value of noise phase value is 0.
Step 205：According to level of noise, noise reverse phase place value and frequency noise value generation compensation wave.
The compensation wave that is generated is identical with the noise amplitude that the capacitance installed in mobile terminal is sent out, frequency is identical but phase
Position is opposite.
Step 206：Output compensation wave, the noise sent out with the capacitance for offsetting mobile terminal.
In embodiments of the present invention, the noise parameters that the capacitance of detection mobile terminal makes a noise in advance, and movement is written
Terminal, the noise parameters to be made a noise by the capacitance in communication process, determining mobile terminal；It determines to move according to noise parameters
The reverse phase value of noise that the capacitance of dynamic terminal is sent out, generation compensation wave, output compensation wave, to offset the capacitance of mobile terminal
The noise sent out on the basis of the noise that the capacitance included in mobile terminal is sent out, sends out and is sent out with the capacitance of mobile terminal
Noise antiphase sound, can achieve the purpose that eliminate the noise that sends out of capacitance of mobile terminal.
Embodiment three
With reference to Fig. 3, a kind of step flow chart of noise-reduction method of the embodiment of the present invention three is shown.
The embodiment of the present invention is realized by PC, mobile terminal and microphone joins the corresponding noise of the capacitance of mobile terminal
Several detection, record, wherein, mobile terminal is connect with PC by USB, and PC is connect with microphone, and microphone is to mobile terminal
The noise that capacitance is sent out carries out reception detection.
Noise-reduction method provided in an embodiment of the present invention includes the following steps：
Step 301：When detecting that capacitance makes a noise, predesigned compensation wave is exported.
During running of mobile terminal, the noise that the capacitance of mobile terminal is sent out is detected by microphone, and by capacitance
The noise sent out is sent to PC, and the level of noise that PC makes a noise the capacitance of mobile terminal is denoted as the first level of noise, and PC sends control
To mobile terminal, control mobile terminal sends out predesigned compensation wave, in the case where sending out predesigned compensation wave, passes through wheat for system order
Gram wind detection current mobile terminal, which makes a noise, corresponding second level of noise and is sent to PC.
Step 302：Receive the predesigned compensation wave regulating command that PC is sent.
The generating mode of predesigned compensation wave regulating command, a kind of preferred mode are：PC receives second that microphone is sent
Level of noise, and judge the size of the first level of noise and the second level of noise, when the first level of noise is more than the second level of noise, show electricity
Hold the phase value of noise sent out with the phase value of predesigned compensation wave on the contrary, being included in the predesigned compensation wave regulating command that PC is sent
Instruction be：It adjusts the instruction of predesigned compensation wave phase value and adjusts the instruction of predesigned compensation wave amplitude angle value.
Another preferably mode is：
When PC judges that the first level of noise is less than the second level of noise, show phase value and the first noise that capacitance makes a noise
The phase value of value is identical, then PC sends predesigned compensation wave regulating command to mobile terminal and includes：Adjust predesigned compensation wave amplitude angle value
Instruction.
Step 303：The range value and/or phase value of predesigned compensation wave are adjusted according to the regulating command of predesigned compensation wave.
Wherein, the regulating command of predesigned compensation wave is sent out for adjusting predesigned compensation wave with the capacitance for offsetting mobile terminal
Noise.
Specifically, when instruction and adjusting that adjusting predesigned compensation wave phase value is included in predesigned compensation wave regulating command are default
When compensating the instruction of wave amplitude angle value, the phase value and range value of predesigned compensation wave are adjusted.Such as：When the phase value of predesigned compensation wave
When being 0, then the phase value of predesigned compensation wave is adjusted to 180 according to the regulating command of predesigned compensation wave.Determine that capacitance makes a noise
Corresponding range value is identical by the range value of predesigned compensation wave is adjusted to capacitance makes a noise range value.
After mobile terminal is adjusted according to the regulating command of predesigned compensation wave according to the incremental mode output phase of volume
Predesigned compensation wave, then mobile terminal is detected by microphone and is made a noise corresponding third level of noise, third level of noise is sent
To PC, third level of noise and default level of noise are compared by PC, when third level of noise is less than default level of noise, PC no longer to
Mobile terminal sends predesigned compensation wave regulating command.
It should be noted that those skilled in the art can be configured default level of noise according to actual conditions, wherein,
Default level of noise could be provided as 1db, 2db, 3db etc., and the embodiment of the present invention is not specifically limited the size for presetting level of noise.
When only including the instruction for adjusting predesigned compensation wave amplitude angle value in predesigned compensation wave regulating command, predesigned compensation is adjusted
The range value of wave.
Step 304：Receive the corresponding phase value of predesigned compensation wave, frequency values and the range value after the adjusting that PC is sent..
When third level of noise is less than default level of noise, PC determines the corresponding phase value of predesigned compensation wave after adjusting, frequency
Rate value and range value, and mobile terminal is written.
Step 305：The noise parameters that phase value, frequency values and range value are made a noise as capacitance.
Step 306：In communication process, the noise parameters that the capacitance of mobile terminal makes a noise are determined.
When detecting that mobile terminal is in 2G calls, then it is previously written from the acquisition of the correspondence storage location of mobile terminal
The noise parameters for the capacitance that mobile terminal is included.
Step 307：According to phase value, frequency values and range value generation compensation wave.
According to noise parameters generation compensation wave, such as：When frequency values are 217Hz, phase value 0, amplitude 3 then exports
Compensation wave frequency values for 217Hz, phase value 0, amplitude 3.This kind of mode, the directly benefit by the way that mobile terminal is written
The correspondence parameter of wave is repaid, directly generates compensation wave according to parameter so that noise reduction speed faster, promotes the usage experience of user.
Step 308：Output compensation wave, the noise sent out with the capacitance for offsetting mobile terminal.
In embodiments of the present invention, the noise parameters that the capacitance of detection mobile terminal makes a noise in advance, and movement is written
Terminal, the noise parameters to be made a noise by the capacitance in communication process, determining mobile terminal；It is mended according to noise parameters generation
Repay wave, output compensation wave, with the noise that the capacitance for offsetting mobile terminal is sent out, in the base for the noise that the capacitance of mobile terminal is sent out
On plinth, the sound of the antiphase of the noise sent out with the capacitance of mobile terminal is sent out, can realize and eliminate original mobile terminal
The effect of noise that sends out of capacitance, noise-reduction method provided in an embodiment of the present invention, the mobile terminal that can be written with direct basis
The noise parameters that make a noise of capacitance directly generate compensation wave, realize noise reduction while reducing calculation amount.
Example IV
With reference to Fig. 4, a kind of structure diagram of mobile terminal of the embodiment of the present invention four is shown.
Mobile terminal provided in an embodiment of the present invention includes：First determining module 401, in communication process, determining
The noise parameters that the capacitance of the mobile terminal makes a noise；Generation module 402 compensates for being generated according to the noise parameters
Wave, wherein, the opposite in phase of noise that the capacitance of compensation wave and the mobile terminal is sent out；Output module 403, for defeated
Go out the compensation wave, the noise sent out with the capacitance for offsetting the mobile terminal.
In embodiments of the present invention, by communication process, determining that the noise that the capacitance of mobile terminal makes a noise is joined
Number；According to noise parameters generation compensation wave, output compensation wave, the noise sent out with the capacitance for offsetting mobile terminal.Mobile whole
On the basis of the capacitance at end makes a noise, the sound of the antiphase of the noise sent out with mobile terminal is sent out, elimination can be reached
The noise that the capacitance of mobile terminal is sent out promotes the usage experience of user.
Embodiment five
With reference to Fig. 5, a kind of structure diagram of mobile terminal of the embodiment of the present invention five is shown.
Mobile terminal provided in an embodiment of the present invention includes, the first determining module 501, in communication process, determining
The noise parameters that the capacitance of the mobile terminal makes a noise；Generation module 502 compensates for being generated according to the noise parameters
Wave, wherein, the opposite in phase of noise that the capacitance of compensation wave and the mobile terminal is sent out；Output module 503, for defeated
Go out the compensation wave, the noise sent out with the capacitance for offsetting the mobile terminal.
Preferably, the mobile terminal is connect with PC, and the PC is connect with microphone, and the mobile terminal includes：First
Receiving module 504, in communication process, determining that the capacitance of the mobile terminal is sent out in first determining module 501
Before the noise parameters of noise, level of noise, noise phase value and the frequency noise value of the capacitance noise that the PC is sent are received,
Wherein, the level of noise of the capacitance noise, noise phase value and frequency noise value are detected, and pass through microphone by microphone
It is sent to the PC；Second determining module 505, for the capacitance is made a noise level of noise, noise phase value and make an uproar
The noise parameters that voice frequency value makes a noise as capacitance.
Preferably, the generation module 502 includes：Determination sub-module 5021, for determining the anti-of the noise phase value
Phase value；Output sub-module 5022 compensates for being generated according to the level of noise, noise reverse phase place value and frequency noise value
Wave.
Preferably, the mobile terminal includes：Predesigned compensation wave output module 506, in first determining module
501 in communication process, before determining the noise parameters that the capacitance of the mobile terminal makes a noise, when detecting that capacitance sends out
During noise, predesigned compensation wave is exported；Second receiving module 507, for receiving the predesigned compensation wave regulating command of PC ends transmission；It adjusts
Module 508 is saved, for adjusting the range value and/or phase of the predesigned compensation wave according to the predesigned compensation wave regulating command
Value, wherein, the predesigned compensation wave regulating command is made an uproar with offset that the capacitance sends out for adjusting the predesigned compensation wave
Sound；Third receiving module 509, for receive PC ends transmission adjusting after the corresponding phase value of predesigned compensation wave, frequency values with
And range value；Third determining module 510, for what the phase value, frequency values and range value made a noise as capacitance
Noise parameters.
Preferably, the generation module 502 includes：Submodule 5023 is generated, for according to the phase value, the frequency
Value and amplitude generation compensation wave.
Mobile terminal provided in an embodiment of the present invention can realize that mobile terminal is realized in the embodiment of the method for Fig. 1 to Fig. 3
Each process, repeated to avoid, which is not described herein again.
In embodiments of the present invention, the noise parameters that the capacitance of detection mobile terminal makes a noise in advance, and movement is written
Terminal, the noise parameters to be made a noise by the capacitance in communication process, determining mobile terminal；It is mended according to noise parameters generation
Wave is repaid, output compensation wave with the noise that the capacitance for offsetting mobile terminal is sent out, is made an uproar what the capacitance that mobile terminal is included was sent out
On the basis of sound, the sound of the antiphase of the noise sent out with the capacitance of mobile terminal is sent out, can realize and eliminate original shifting
The effect of noise that the capacitance of dynamic terminal is sent out, noise-reduction method provided in an embodiment of the present invention, the shifting that can be written with direct basis
The noise parameters that the capacitance of dynamic terminal makes a noise directly generate compensation wave, and the effect of noise reduction is realized while reducing calculation amount.
Embodiment six
A kind of hardware architecture diagram of Fig. 6 mobile terminals of each embodiment to realize the present invention,
The mobile terminal 600 includes but not limited to：It is radio frequency unit 601, network module 602, audio output unit 603, defeated
Enter unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, processor
The components such as 610 and power supply 611.It will be understood by those skilled in the art that mobile terminal structure shown in Fig. 6 is not formed
Restriction to mobile terminal, mobile terminal can include than illustrate more or fewer components either combine certain components or
Different component arrangements.In embodiments of the present invention, mobile terminal include but not limited to mobile phone, tablet computer, laptop,
Palm PC, car-mounted terminal, wearable device and pedometer etc..
Processor 610, the noise parameters that the capacitance in communication process, determining the mobile terminal makes a noise；
Compensation wave is generated according to the noise parameters, wherein, the phase of noise that sends out of capacitance of the compensation wave and the mobile terminal
Position is opposite；Export the compensation wave, the noise sent out with the capacitance for offsetting the mobile terminal.；
In embodiments of the present invention, by communication process, determining that the noise that the capacitance of mobile terminal makes a noise is joined
Number；According to noise parameters generation compensation wave, output compensation wave, the noise sent out with the capacitance for offsetting mobile terminal.Mobile whole
On the basis of the capacitance at end makes a noise, the sound of the antiphase of the noise sent out with the capacitance of mobile terminal, Neng Gouda are sent out
The noise sent out to the capacitance for eliminating mobile terminal promotes the usage experience of user.
It should be understood that the embodiment of the present invention in, radio frequency unit 601 can be used for receive and send messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, handled to processor 610；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 601 includes but not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 601 can also by radio communication system and network and other set
Standby communication.
Mobile terminal has provided wireless broadband internet to the user by network module 602 and has accessed, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
It is that audio output unit 603 can receive radio frequency unit 601 or network module 602 or in memory 609
The audio data of storage is converted into audio signal and exports as sound.Moreover, audio output unit 603 can also be provided and be moved
The relevant audio output of specific function that dynamic terminal 600 performs is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 603 includes loud speaker, buzzer and receiver etc..
Input unit 604 is used to receive audio or video signal.Input unit 604 can include graphics processor
(Graphics Processing Unit, GPU) 6041 and microphone 6042, graphics processor 6041 is in video acquisition mode
Or the static images or the image data of video obtained in image capture mode by image capture apparatus (such as camera) carry out
Reason.Treated, and picture frame may be displayed on display unit 606.Through graphics processor 6041, treated that picture frame can be deposited
Storage is sent in memory 609 (or other storage mediums) or via radio frequency unit 601 or network module 602.Mike
Wind 6042 can receive sound, and can be audio data by such acoustic processing.Treated audio data can be
The form output of mobile communication base station can be sent to via radio frequency unit 601 by being converted in the case of telephone calling model.
Mobile terminal 600 further includes at least one sensor 605, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 6061, and proximity sensor can close when mobile terminal 600 is moved in one's ear
Display panel 6061 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, size and the direction of gravity are can detect that when static, can be used to identify mobile terminal posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；It passes
Sensor 605 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared ray sensor etc. are spent, details are not described herein.
Display unit 606 is used to show by information input by user or be supplied to the information of user.Display unit 606 can wrap
Display panel 6061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode may be used
Display panel 6061 is configured in forms such as (Organic Light-Emitting Diode, OLED).
User input unit 607 can be used for receiving the number inputted or character information and generation and the use of mobile terminal
The key signals input that family is set and function control is related.Specifically, user input unit 607 include touch panel 6071 and
Other input equipments 6072.Touch panel 6071, also referred to as touch screen collect user on it or neighbouring touch operation
(for example user uses any suitable objects such as finger, stylus or attachment on touch panel 6071 or in touch panel 6071
Neighbouring operation).Touch panel 6071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 610, receiving area
It manages the order that device 610 is sent and is performed.It is furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Type realizes touch panel 6071.In addition to touch panel 6071, user input unit 607 can also include other input equipments
6072.Specifically, other input equipments 6072 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, operating lever, details are not described herein.
Further, touch panel 6071 can be covered on display panel 6061, when touch panel 6071 is detected at it
On or near touch operation after, send to processor 610 with determine touch event type, be followed by subsequent processing device 610 according to touch
The type for touching event provides corresponding visual output on display panel 6061.Although in figure 6, touch panel 6071 and display
Panel 6061 is the component independent as two to realize the function that outputs and inputs of mobile terminal, but in some embodiments
In, can be integrated by touch panel 6071 and display panel 6061 and realize the function that outputs and inputs of mobile terminal, it is specific this
Place does not limit.
Interface unit 608 is the interface that external device (ED) is connect with mobile terminal 600.For example, external device (ED) can include
Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card end
Mouth, port, audio input/output (I/O) port, video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 608 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) and
One or more elements that the input received is transferred in mobile terminal 600 can be used in 600 He of mobile terminal
Data are transmitted between external device (ED).
Memory 609 can be used for storage software program and various data.Memory 609 can mainly include storing program area
And storage data field, wherein, storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 609 can include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 610 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part is stored in storage by running or performing the software program being stored in memory 609 and/or module and call
Data in device 609 perform the various functions of mobile terminal and processing data, so as to carry out integral monitoring to mobile terminal.Place
Reason device 610 may include one or more processing units；Preferably, processor 610 can integrate application processor and modulatedemodulate is mediated
Device is managed, wherein, the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 610.
Mobile terminal 600 can also include the power supply 611 (such as battery) powered to all parts, it is preferred that power supply 611
Can be logically contiguous by power-supply management system and processor 610, so as to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
In addition, mobile terminal 600 includes some unshowned function modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, and including processor 610, memory 609 is stored in
On memory 609 and the computer program that can be run on the processor 610, the computer program are performed by processor 610
Each process of the above-mentioned noise-reduction method embodiments of Shi Shixian, and identical technique effect can be reached, it is repeated to avoid, here no longer
It repeats.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each process of above-mentioned noise-reduction method embodiment when being executed by processor, and can reach
Identical technique effect is repeated to avoid, and which is not described herein again.Wherein, the computer readable storage medium is deposited Ru read-only
Reservoir (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM),
Magnetic disc or CD etc..
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those elements, and
And it further includes other elements that are not explicitly listed or further includes intrinsic for this process, method, article or device institute
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical elements in the process of element, method, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), used including some instructions so that a station terminal (can be mobile phone, computer services
Device, air conditioner or network equipment etc.) perform method described in each embodiment of the present invention.
The embodiment of the present invention is described above in conjunction with attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned specific embodiment is only schematical rather than restricted, those of ordinary skill in the art
Under the enlightenment of the present invention, present inventive concept and scope of the claimed protection are not being departed from, can also made very much
Form is belonged within the protection of the present invention.
Claims (12)
1. a kind of noise-reduction method, applied to mobile terminal, which is characterized in that the method includes：
In communication process, the noise parameters that the capacitance of the mobile terminal makes a noise are determined；
Compensation wave is generated according to the noise parameters, wherein, the noise that the capacitance of compensation wave and the mobile terminal is sent out
Opposite in phase；
Export the compensation wave, the noise sent out with the capacitance for offsetting the mobile terminal.
2. according to the method described in claim 1, it is characterized in that, the mobile terminal is connect with PC, the PC and microphone
Connection, described in communication process, before the step of determining the noise parameters that the capacitance of the mobile terminal makes a noise, institute
The method of stating further includes：
Level of noise, noise phase value and the frequency noise value for the capacitance noise that the PC is sent are received, wherein, the capacitance is made an uproar
Level of noise, noise phase value and the frequency noise value of sound are detected by microphone, and are passed through microphone and be sent to the PC；
The noise that level of noise, noise phase value and the frequency noise value that the capacitance is made a noise make a noise as capacitance
Parameter.
3. according to the method described in claim 2, it is characterized in that, described the step of generating compensation wave according to the noise parameters
Including：
Determine the reverse phase place value of the noise phase value；
Compensation wave is generated according to the level of noise, noise reverse phase place value and frequency noise value.
4. according to the method described in claim 1, it is characterized in that, described in communication process, the mobile terminal is determined
Capacitance make a noise noise parameters the step of before, the method further includes：
When detecting that capacitance makes a noise, predesigned compensation wave is exported；
Receive the predesigned compensation wave regulating command that PC is sent；
The range value and/or phase value of the predesigned compensation wave are adjusted according to the predesigned compensation wave regulating command, wherein, it is described
The regulating command of predesigned compensation wave is used to adjust the predesigned compensation wave, the noise sent out with the capacitance for offsetting the mobile terminal；
Receive the corresponding phase value of predesigned compensation wave, frequency values and the range value after the adjusting that PC is sent；
The noise parameters that the phase value, frequency values and range value are made a noise as capacitance.
5. the according to the method described in claim 4, it is characterized in that, step that compensation wave is generated according to the noise parameters
Suddenly, including：
Compensation wave is generated according to the phase value, frequency values and range value.
6. a kind of mobile terminal, which is characterized in that the mobile terminal includes：
First determining module, the noise parameters that the capacitance in communication process, determining the mobile terminal makes a noise；
Generation module, for generating compensation wave according to the noise parameters, wherein, the electricity of the compensation wave and the mobile terminal
Hold the opposite in phase of noise sent out；
Output module, for exporting the compensation wave, the noise sent out with the capacitance for offsetting the mobile terminal.
7. mobile terminal according to claim 6, which is characterized in that the mobile terminal is connect with PC, the PC and wheat
The connection of gram wind, the mobile terminal include：
First receiving module, in communication process, determining that the capacitance of the mobile terminal is sent out in first determining module
Go out before the noise parameters of noise, receive level of noise, noise phase value and the frequency noise of the capacitance noise that the PC is sent
Value, wherein, level of noise, noise phase value and the frequency noise value of the capacitance noise are detected, and pass through wheat by microphone
Gram wind is sent to the PC；
Second determining module, for level of noise, noise phase value and frequency noise value that the capacitance makes a noise as
The noise parameters that capacitance makes a noise.
8. mobile terminal according to claim 6, which is characterized in that the generation module includes：
Determination sub-module, for determining the reverse phase place value of the noise phase value；
Output sub-module, for generating compensation wave according to the level of noise, noise reverse phase place value and frequency noise value.
9. mobile terminal according to claim 6, which is characterized in that the mobile terminal includes：
Predesigned compensation wave output module, in communication process, determining the mobile terminal in first determining module
Before the noise parameters that capacitance makes a noise, when detecting that capacitance makes a noise, predesigned compensation wave is exported；
Second receiving module, for receiving the predesigned compensation wave regulating command of PC ends transmission；
Adjustment module, for adjusting the predesigned compensation wave amplitude angle value and/or phase according to the predesigned compensation wave regulating command
Value, wherein, the predesigned compensation wave regulating command is for adjusting the predesigned compensation wave, to offset the capacitance of the mobile terminal
The noise sent out；
Third receiving module, for receive PC ends transmission adjusting after the corresponding phase value of predesigned compensation wave, frequency values and
Range value；
Third determining module, for the noise parameters that the phase value, frequency values and range value make a noise as capacitance.
10. mobile terminal according to claim 9, which is characterized in that the generation module includes：
Submodule is generated, for generating compensation wave according to the phase value, frequency values and range value.
11. a kind of mobile terminal, which is characterized in that including processor, memory and be stored on the memory and can be in institute
The computer program run on processor is stated, such as claim 1 to 5 is realized when the computer program is performed by the processor
Any one of described in noise-reduction method the step of.
12. a kind of computer readable storage medium, which is characterized in that computer journey is stored on the computer readable storage medium
Sequence realizes the step of the noise-reduction method as described in any one of claim 1 to 5 when the computer program is executed by processor
Suddenly.
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| CN201711230387.XA CN108234727B (en) | 2017-11-29 | 2017-11-29 | Noise reduction method, mobile terminal and computer readable storage medium |
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| CN201711230387.XA CN108234727B (en) | 2017-11-29 | 2017-11-29 | Noise reduction method, mobile terminal and computer readable storage medium |
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