CN109561643A - Electromagnetic interference control method and Related product - Google Patents

Electromagnetic interference control method and Related product Download PDF

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Publication number
CN109561643A
CN109561643A CN201811302281.0A CN201811302281A CN109561643A CN 109561643 A CN109561643 A CN 109561643A CN 201811302281 A CN201811302281 A CN 201811302281A CN 109561643 A CN109561643 A CN 109561643A
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CN
China
Prior art keywords
frequency
mipi
target
working frequency
display screen
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Pending
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CN201811302281.0A
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Chinese (zh)
Inventor
唐凯
谭正鹏
陈运
王立中
杨海
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN201811302281.0A priority Critical patent/CN109561643A/en
Publication of CN109561643A publication Critical patent/CN109561643A/en
Priority to PCT/CN2019/109164 priority patent/WO2020088184A1/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields

Abstract

The embodiment of the present application discloses a kind of electromagnetic interference control method and Related product, by when electronic equipment is in video mode, if display screen is in bright screen state, obtain the target operating frequency of modem, obtain the first MIPI working frequency of display screen MIPI, determine whether target operating frequency is interfered according to the first MIPI working frequency, if, determine the target video frame per second of video, determine the 2nd MIPI working frequency corresponding with target video frame per second, the MIPI working frequency of display screen is adjusted to the 2nd MIPI working frequency, so, it can be in the case where not changing electronic equipment hardware design, video mode, which is in, in electronic equipment dynamically adjusts display screen MIPI working frequency at present, to eliminate or reduce its electromagnetic interference to modem communication, it obtains Optimal communication performance.

Description

Electromagnetic interference control method and Related product
Technical field
This application involves electronic technology fields, and in particular to a kind of electromagnetic interference control method and Related product.
Background technique
With the development of mobile communication technology, the demand that user communicates the electronic equipments such as mobile phone is increasing, mesh Preceding electronic equipment on the market is general to pass through the side such as cellular mobile network communication or Wi-Fi communication when carrying out data transmission Formula transmits data, and comprehensive screen mobile phone all suffers from radio frequency interference problem, for example, when electronic equipment is carrying out net cast, Display screen frame per second and clarity are more demanding, are used for transmission the display screen mobile industry processor interface (mobile of data Industry processor interface, MIPI) when being worked with fixed frequency, if its crossover frequency or frequency multiplication frequency are fallen in In particular job frequency, may there are the various modules interfered with each other with display screen MIPI, such as communication module, audio mould Block, to influence the functional stabilization of modules in electronic equipment.
Currently, the interference to modules can be improved by HardwareUpgring, but it will increase cost, and improvement is limited, Therefore, the problem of how reducing the interference of the working frequency of display screen MIPI to electronic equipment modules is urgently to be resolved.
Summary of the invention
The embodiment of the present application provides a kind of electromagnetic interference control method and Related product, can eliminate or reduce display The electromagnetic interference that screen MIPI working frequency communicates modem, realizes optimal communication performance.
In a first aspect, the embodiment of the present application provides a kind of electromagnetic interference control method, it is applied to electronic equipment, the electronics Equipment includes display screen, modem modem, which comprises
When the electronic equipment is in video mode, if display screen is in bright screen state, the target of the modem is obtained Working frequency;
Obtain the first MIPI working frequency of the display screen Mobile Industry Processor Interface MIPI;
Determine whether the target operating frequency is interfered according to the first MIPI working frequency;
If so, obtaining the target video frame per second of the video;
Determine the 2nd MIPI working frequency corresponding with the target video frame per second, the 2nd MIPI working frequency is to institute The interference for stating target operating frequency generation is less than the interference that the first MIPI working frequency generates the target operating frequency;
The MIPI working frequency of the display screen is adjusted to the 2nd MIPI working frequency.
Second aspect, the embodiment of the present application provide a kind of electromagnetic interference control device, are applied to electronic equipment, the electricity Sub- equipment includes display screen, modem modem, and the electromagnetic interference control device includes:
Acquiring unit, for if display screen is in bright screen state, obtaining institute when the electronic equipment is in video mode State the target operating frequency of modem;And obtain the first MIPI work of the display screen Mobile Industry Processor Interface MIPI Frequency;
Determination unit, for determining the target operating frequency whether by dry according to the first MIPI working frequency It disturbs;
The acquiring unit is also used to obtain the mesh of the video when determining that the target operating frequency is interfered Mark video frame rate;
The determination unit is also used to determine the 2nd MIPI working frequency corresponding with the target video frame per second, described 2nd MIPI working frequency is less than the first MIPI working frequency to the mesh to the interference that the target operating frequency generates Mark the interference that working frequency generates;
Adjustment unit, for adjusting the MIPI working frequency of the display screen to the 2nd MIPI working frequency.
The third aspect, the embodiment of the present application provide a kind of electronic equipment, including processor, memory, communication interface, and One or more programs, wherein said one or multiple programs are stored in above-mentioned memory, and are configured by above-mentioned It manages device to execute, above procedure is included the steps that for executing the instruction in the embodiment of the present application first aspect.
Fourth aspect, the embodiment of the present application provide a kind of computer readable storage medium, wherein above-mentioned computer-readable Storage medium storage is used for the computer program of electronic data interchange, wherein above-mentioned computer program executes computer such as Step some or all of described in the embodiment of the present application first aspect.
5th aspect, the embodiment of the present application provide a kind of computer program product, wherein above-mentioned computer program product Non-transient computer readable storage medium including storing computer program, above-mentioned computer program are operable to make to calculate Machine executes the step some or all of as described in the embodiment of the present application first aspect.The computer program product can be one A software installation packet.
As can be seen that electromagnetic interference control method and Related product described in the embodiment of the present application, by electronics When equipment is in video mode, if display screen is in bright screen state, the target operating frequency of modem is obtained, obtains display screen The first MIPI working frequency of MIPI determines whether target operating frequency is interfered according to the first MIPI working frequency, if so, It determines the target video frame per second of video, the 2nd MIPI working frequency corresponding with target video frame per second is determined, by display screen MIPI working frequency is adjusted to the 2nd MIPI working frequency, in this way, can be the case where not changing electronic equipment hardware design Under, video mode is in electronic equipment and dynamically adjusts display screen MIPI working frequency at present, makes display screen MIPI work right Modem interferes lesser working frequency, to eliminate or reduce its electromagnetic interference to modem communication, obtains optimal logical Believe performance.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Figure 1A is the structural schematic diagram of a kind of electronic equipment provided by the embodiments of the present application;
Figure 1B is a kind of flow diagram of electromagnetic interference control method disclosed in the embodiment of the present application;
Fig. 2 is the flow diagram of another kind electromagnetic interference control method disclosed in the embodiment of the present application;
Fig. 3 is the flow diagram of another kind electromagnetic interference control method disclosed in the embodiment of the present application;
Fig. 4 is the structural schematic diagram of another kind electronic equipment disclosed in the embodiment of the present application;
Fig. 5 is a kind of structural schematic diagram of electromagnetic interference control device disclosed in the embodiment of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.
The description and claims of this application and term " first " in above-mentioned attached drawing, " second " etc. are for distinguishing Different objects, are not use to describe a particular order.In addition, term " includes " and " having " and their any deformations, it is intended that It is to cover and non-exclusive includes.Such as the process, method, system, product or equipment for containing a series of steps or units do not have It is defined in listed step or unit, but optionally further comprising the step of not listing or unit, or optionally also wrap Include other step or units intrinsic for these process, methods, product or equipment.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments It is contained at least one embodiment of the application.Each position in the description occur the phrase might not each mean it is identical Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and Implicitly understand, embodiment described herein can be combined with other embodiments.
Electronic equipment involved by the embodiment of the present application may include the various handheld devices with wireless communication function, Mobile unit, wireless headset calculate equipment or are connected to other processing equipments of radio modem and various forms of User equipment (user equipment, UE), mobile station (mobile station, MS), terminal device (terminal Device) etc., electronic equipment for example can be smart phone, tablet computer, Earphone box etc..For convenience of description, mention above To equipment be referred to as electronic equipment.
Figure 1A is please referred to, Figure 1A is the structural schematic diagram of a kind of electronic equipment provided by the embodiments of the present application, electronic equipment Including control circuit and input-output circuit, imput output circuit is connected to the control circuit.
Wherein, control circuit may include storage and processing circuit.Storage circuit in the storage and processing circuit can be with It is memory, such as hard drive memory, nonvolatile memory (such as flash memory or it is used to form the other of solid state drive Electrically programmable read only memory etc.), volatile memory (such as either statically or dynamically random access memory etc.) etc., the application Embodiment is with no restriction.Processing circuit in storage and processing circuit can be used for the operating of controlling electronic devices.Processing electricity Road can microprocessor based on one or more, microcontroller, digital signal processor, baseband processor, power management unit, Audio codec chip, specific integrated circuit, display-driver Ics etc. are realized.
Storage and processing circuit can be used for running the software in electronic equipment, such as play incoming call prompting jingle bell application journey Sequence, play short message prompt jingle bell application program, play alarm clock prompting jingle bell application program, play media file application program, Voice over internet protocol (voice over internet protocol, VOIP) call application program, operating system function Energy is equal.These softwares can be used for executing some control operations, for example, playing incoming call prompting jingle bell, playing short message prompt sound Other functions etc. in bell, broadcasting alarm clock prompting jingle bell, broadcasting media file, progress voice telephone calls and electronic equipment, The embodiment of the present application is with no restriction.
Wherein, input-output circuit can be used for that electronic equipment is made to realize outputting and inputting for data, i.e. permission electronic equipment From outer equipment receiving data and electronic equipment is allowed to export data to external equipment from electronic equipment.
Input-output circuit may further include sensor.Sensor may include ambient light sensor, based on light and The infrared proximity transducer of capacitor, ultrasonic sensor, touch sensor is (for example, be based on light touch sensor and/or condenser type Touch sensor, wherein touch sensor can be a part of touching display screen, can also be used as a touch sensor knot Structure independently uses), acceleration transducer, gravity sensor and other sensors etc..Input-output circuit can also be further Including audio component, audio component can be used for providing audio input and output function for electronic equipment.Audio component can be with Including tone generator and other components for being used to generate and detect sound.
Input-output circuit can also include one or more display screens.Display screen may include liquid crystal display, organic Light emitting diode (LED) display screen, electric ink display screen, plasma panel, using a kind of in the display screen of other display technologies or Several combination of person.Display screen may include touch sensor array (that is, display screen can be touching display screen).Touch sensing Device can be the capacitance touch sensing formed by transparent touch sensor electrode (such as tin indium oxide (ITO) electrode) array Device, or can be the touch sensor formed using other touching techniques, such as sound wave touch-control, pressure sensible touch, resistive touch, Optical touch etc., the embodiment of the present application is with no restriction.
Input-output circuit, which can further include telecommunication circuit, can be used for providing for electronic equipment and external equipment The ability of communication.Telecommunication circuit may include analog- and digital- input-output interface circuit, and be based on radiofrequency signal and/or light The radio communication circuit of signal.Radio communication circuit in telecommunication circuit may include radio-frequency transceiver circuitry, power amplifier Circuit, low-noise amplifier, switch, filter and antenna.For example, the radio communication circuit in telecommunication circuit may include For supported by emitting and receiving near-field coupling electromagnetic signal near-field communication (near field communication, NFC circuit).For example, telecommunication circuit may include near-field communication aerial and near-field communication transceiver.Telecommunication circuit can also wrap Include cellular telephone transceiver and antenna, wireless lan transceiver circuit and antenna etc..
Input-output circuit can further include other input-output units.Input-output unit may include Button, control stick, click wheel, scroll wheel, touch tablet, keypad, keyboard, camera, light emitting diode and other state instructions Device etc..
Wherein, electronic equipment can further include battery (not shown), and battery provides electric energy for electron equipment.
It describes in detail below to the embodiment of the present application.
Figure 1B is please referred to, Figure 1B is a kind of flow diagram of electromagnetic interference control method disclosed in the embodiment of the present application, Applied to electronic equipment described in above-mentioned Figure 1A, the electronic equipment includes display screen and modem modem, the electromagnetism Interference control method includes the following steps:
101, when the electronic equipment is in video mode, if display screen is in bright screen state, obtain the modem's Target operating frequency.
Wherein, above-mentioned video mode include electronic equipment be in net cast mode or electronic equipment it is logical in video The mode of words, the mode of video calling include the mode or electronics that electronic equipment carries out video calling by third-party application Equipment is based on the video calling mode of long term evolution voice service (Voice over Long Term Evolution, VOLTE), In the embodiment of the present application, when electronic equipment is in video mode, display screen display picture frame per second and clarity require compared with Height, the requirement of real-time that display screen transmits data is high, target operating frequency can be detected by modem, and frequently by the target operation Rate is sent to the application processor (application processor, AP) in electronic equipment.
Optionally, in above-mentioned steps 101, the target operating frequency of the modem is obtained, it may include following steps:
11, the movement speed of the electronic equipment is obtained;
If 12, the movement speed meets pre-set velocity range, targeted time period is determined according to the movement speed, with The targeted time period receives the target operating frequency that the modem is reported.
In the embodiment of the present application, it is contemplated that be in video mode in electronic equipment, the frame per second and clarity of display screen are wanted Ask higher, networked-induced delay requires height, and the power consumption of electronic equipment is higher, if modem continuous high frequency reports target operation frequency to AP Rate will increase the data processing pressure of AP, therefore the speed detector of electronic equipment, such as speed can be passed through by improving power consumption The movement speed that sensor detects electronic equipment can be according to preset speed if movement speed belongs in preset velocity interval Degree determines the corresponding targeted time period of movement speed with the mapping relations between the time cycle, and controls modem according to target Time cycle reports target operating frequency to AP, specifically, when first movement speed is greater than the second movement speed, first movement speed Corresponding period first time second time period corresponding less than the second movement speed is spent, thus, it can be according in electronic equipment Under different movement speeds, the time cycle that modem reports target operating frequency is adjusted flexibly, saves the function of electronic equipment Consumption.
Optionally, when electronic equipment is in and puts out under screen state, the operation that modem reports target operating frequency can be stopped, To which the power consumption of electronic equipment can be reduced.
102, the first MIPI working frequency of the display screen Mobile Industry Processor Interface MIPI is obtained.
In the embodiment of the present application, application processor AP can obtain display screen MIPI according to the time cycle of target operating frequency First MIPI working frequency of bus, when the detection cycle of target operating frequency is all from first time period modulation to the second time After phase, the time cycle for obtaining the first MIPI working frequency can also be adjusted therewith.
103, determine whether the target operating frequency is interfered according to the first MIPI working frequency.
In the embodiment of the present application, application processor AP is in the target operating frequency for receiving modem, and obtains first After MIPI working frequency, target operating frequency can be determined whether by according to target operating frequency and the first MIPI working frequency The interference of one MIPI working frequency.
Optionally, in above-mentioned steps 103, whether the target operating frequency is determined according to the first MIPI working frequency It is interfered, it may include following steps:
31, it according to the corresponding relationship between preset MIPI working frequency and interfering frequency list, determines and described first The corresponding target jamming list of frequency of MIPI working frequency, the target jamming list of frequency include to work with the first MIPI Corresponding multiple first interfering frequencies of frequency;
32, by the multiple first interfering frequency in the target operating frequency and the target jamming list of frequency according to It is secondary to be matched, if the target operating frequency is matched into any first interfering frequency in the multiple first interfering frequency Function determines that the target operating frequency is interfered.
Wherein, multiple interfering frequencies of the display screen MIPI under multiple MIPI working frequencies can be obtained in electronic equipment in advance List, the corresponding interfering frequency list of every MIPI working frequency, each interfering frequency list includes multiple interfering frequencies, so Corresponding relationship between MIPI working frequency and interfering frequency list is set afterwards, thus, obtain the first MIPI working frequency it Afterwards, it may be determined that the first interfering frequency list corresponding with the first MIPI working frequency, the first interfering frequency list include and first Corresponding multiple first interfering frequencies of MIPI working frequency, show that the first MIPI working frequency can be in multiple first interfering frequencies Any first interfering frequency generates interference, wherein every one first interfering frequency refers to modem logical in multiple first interfering frequencies It will receive the working frequency of interference in letter.
Wherein, can by multiple first interfering frequencies in the target operating frequency of modem and target jamming list of frequency according to It is secondary to be matched, if in multiple first interfering frequencies exist first interfering frequency equal with target operating frequency, matching at Function, the i.e. target operating frequency of modem are fallen into the range of target jamming list of frequency, it is determined that target operating frequency is by The interference of one MIPI working frequency.
104, if so, obtaining the target video frame per second of the video.
Wherein, target video frame per second is the video video frame rate to be shown that obtains of camera of current electronic device, this Apply in embodiment, however, it is determined that the target operating frequency of modem is interfered, and can obtain the target video frame per second of video.
105, the 2nd MIPI working frequency corresponding with the target video frame per second, the 2nd MIPI working frequency are determined What the first MIPI working frequency generated the target operating frequency is less than to the interference that the target operating frequency generates Interference.
Requirement in view of different video frame rates to MIPI working frequency is different, accordingly, it can be determined that current goal regards The corresponding 2nd MIPI working frequency of frequency frame per second, thus, display screen MIPI works in the 2nd MIPI working frequency, it is ensured that video It is normally shown with target video frame per second, and the interference for generating the 2nd MIPI working frequency to the target operating frequency is small In the interference that the first MIPI working frequency generates the target operating frequency, reduces the work to modem and interfere.
Optionally, in above-mentioned steps 105, the 2nd MIPI working frequency corresponding with the target video frame per second is determined, it can Include the following steps:
51, target MIPI operating frequency range list corresponding with the target video frame per second, the target MIPI are determined Operating frequency range list includes multiple MIPI working frequencies;
52, interference of every MIPI working frequency to the target operating frequency in the multiple MIPI working frequency is determined Intensity value obtains multiple interference strength values;
53, the 2nd MIPI work corresponding less than the interference strength value of preset threshold in the multiple interference strength value is determined Frequency.
Wherein it is determined that target MIPI operating frequency range list corresponding with the target video frame per second, then display screen MIPI can work in the MIPI working frequency within the scope of target MIPI operating frequency range list, to guarantee current video It carries out stablizing display under target video frame per second.
In the embodiment of the present application, after determining the corresponding target MIPI operating frequency range list of target video frame per second, by Include multiple MIPI working frequencies in target MIPI operating frequency range list, can further determine that the target work to modem It is less than the 2nd MIPI working frequency of preset threshold in the interference strength value of working frequency, thus, display screen MIPI work can be reduced The interference that frequency generates the target operating frequency of modem, obtains preferable communication performance.
Optionally, in above-mentioned steps 51, target MIPI operating frequency range corresponding with the target video frame per second is determined List, it may include following steps:
According to the corresponding relationship between preset video frame rate and MIPI operating frequency range list, the determining and target The corresponding target MIPI operating frequency range list of video frame rate.
Wherein, multiple MIPI operating frequency range lists under multiple video frame rates can be obtained in electronic equipment in advance, often One frame rate of game corresponds to a MIPI operating frequency range list, and video frame rate and the list of MIPI operating frequency range is then arranged Between corresponding relationship, thus, obtain video target video frame per second after, it may be determined that mesh corresponding with target video frame per second The list of MIPI operating frequency range is marked, target MIPI operating frequency range list includes corresponding with target video frame per second multiple MIPI working frequency can make in this way, display screen MIPI is worked with any MIPI working frequency in multiple MIPI working frequencies Video carries out stablizing display under target video frame per second.
Optionally, in above-mentioned steps 105, the 2nd MIPI working frequency corresponding with the target video frame per second is determined, it can Include the following steps:
54, target MIPI operating frequency range list corresponding with the target video frame per second, the target MIPI are determined Operating frequency range list includes multiple MIPI working frequencies;
55, it according to the corresponding relationship between preset MIPI working frequency and interfering frequency list, determines the multiple Every MIPI working frequency is corresponding in MIPI working frequency refers to interfering frequency list, obtains multiple with reference to interfering frequency column Table;
56, interfering frequency list is referred to by each in the target operating frequency and the multiple reference interfering frequency list In multiple interfering frequencies matched, obtain the corresponding matching result of the second interfering frequency list;
If 57, the matching result is all interfering frequencies in the second interfering frequency list and the target operation It fails to match for frequency, is determined and described second according to the corresponding relationship between the MIPI working frequency and interfering frequency list The corresponding 2nd MIPI working frequency of interfering frequency list.
Wherein, it can be determined above-mentioned more according to the corresponding relationship between preset MIPI working frequency and interfering frequency list Every MIPI working frequency is corresponding in a MIPI working frequency refers to interfering frequency list, obtains multiple with reference to interfering frequency column Table can be by target operating frequency and with reference to interference for every MIPI working frequency and its corresponding reference interfering frequency list Multiple interfering frequencies in list of frequency are successively matched, and are deposited in multiple interfering frequencies in interfering frequency list if this is referred to In the interfering frequency equal with target operating frequency, then successful match, in turn, it may be determined that it is dry that target operating frequency falls into the reference It disturbs within the scope of list of frequency, thus, it may be determined that multiple with reference in interfering frequency list, it is dry that target operating frequency does not fall within the reference Disturb the second interfering frequency list of list of frequency range, i.e. all interference in target operating frequency and the second interfering frequency list Frequency and it fails to match, thus, it may be determined that the corresponding 2nd MIPI working frequency of the second interfering frequency list be to modem Target operating frequency interfere lesser MIPI working frequency.
106, the MIPI working frequency of the display screen is adjusted to the 2nd MIPI working frequency.
It, can be by the MIPI working frequency of display screen MIPI after determining the 2nd MIPI working frequency in the embodiment of the present application It adjusts from the first MIPI working frequency to the 2nd MIPI working frequency, in this way, it is logical to modem to eliminate or reduce display screen MIPI The electromagnetic interference of letter obtains optimal communication performance.
It further, can also be to the display of display screen during the MIPI working frequency to display screen is adjusted Parameter is adjusted, to guarantee display screen steady operation.
Optionally, in the embodiment of the present application, the MIPI working frequency of the display screen is adjusted to the 2nd MIPI work When working frequency, it can comprise the further steps of:
A1, the display screen frame per second when the variable quantity after MIPI frequency error factor is less than the first preset threshold, root The reference screen parameter value of the display screen is determined according to preset frame rate calculation formula and the 2nd MIPI working frequency;
A2, according to the screen parameter for adjusting the display screen with reference to screen parameter value dynamic, obtain target screen ginseng Numerical value, the screen parameter include the following at least one porch value in the preset frame rate calculation formula: after horizontal along HBP, Horizontal forward position HFP, it is vertical after along VBP, vertical front porch VFP, the width VSA of vertical synchronizing signal, horizontal synchronizing signal width HAS。
Wherein, the preset frame rate calculation formula is following formula:
FPS=CLK_rate*2*lane_num/ ((height+VBP+VSA+VFP) * (weight+HBP+HFP+HSA) * bits_perpixel)
Wherein, FPS indicates the frame per second of display screen, and CLK_rate indicates MIPI frequency, and lane_num indicates port number, Height and weight indicates the physical size of display screen, and VBP (vertical back porch) expression starts in a frame image When, the later invalid line number of vertical synchronizing signal, VFB (vertical front porch) expression terminates in a frame image Afterwards, the pervious invalid line number of vertical synchronizing signal, VSA (vertical syncactive) indicate the width of vertical synchronizing signal Degree, HBP (horizontal back porch) are indicated since horizontal synchronizing signal to the valid data of a line The number of clock, HFP (horizontal front porth) indicate that the valid data of a line terminate to next horizontal synchronization Signal start between clock number, HSA (horizontal sync active): indicating the width of horizontal synchronizing signal, Bits_perpixel indicates that RGB shows data width.
Wherein, first preset threshold can be empirical value, for guaranteeing that display screen is aobvious in frequency error factor context The stability shown such as can be display screen chip limits of error range 1%.
As it can be seen that electronic equipment can make some of the display screen of electronic equipment after frequency hopping switching in the embodiment of the present application Parameter changes, and frame per second is an important parameter index of the exhibit stabilization after guarantee display screen frequency hopping switching, so it is electric Sub- equipment can be based on frame per second formula, predefine the reference screen ginseng that the frequency hopping needs the screen parameter of synchronous adjustment in the process Numerical value, electronic equipment can first adjust screen parameter to reference screen parameter value, and on the basis of reference screen parameter value into One step dynamic adjustment screen parameter, is finally reached target screen parameter value, to improve display screen exhibit stabilization.
Optionally, in above-mentioned steps A2, the screen parameter includes horizontal screen parameter, and the horizontal screen parameter includes Following at least one: the HBP, the HFP and the HAS;Wherein, according to described with reference to described in the dynamic adjustment of screen parameter value The screen parameter of display screen obtains target screen parameter value, it may include following steps:
According to the horizontal screen parameter for adjusting the display screen with reference to screen parameter value dynamic, make the display screen Variable quantity of the row scanning duration after MIPI frequency error factor is less than the second preset threshold.
Wherein, if screen parameter is horizontal screen parameter, electronic equipment can first be adjusted horizontal screen parameter to reference screen Curtain parameter value, and further dynamic adjustment screen parameter on the basis of reference screen parameter value, sweep the row of the display screen Variable quantity of the duration after MIPI frequency error factor is retouched less than the second preset threshold, thus, display screen exhibit stabilization can be improved.
For example, measuring horizontal-scanning interval when display screen MIPI basic frequency is 514.5MHz is 7.18us, MIPI When frequency error factor is to quenching frequency 529MHz, it is finely adjusted according to the reference value of screen parameter, and synchro measure horizontal-scanning interval, Determine that the value that horizontal-scanning interval is the screen parameter after fine tuning under 7.18us state is target value.This is mainly due to above-mentioned pre- If frame per second calculation formula is only theoretical calculation formula, actually since the physical difference of device is anisotropic, the accuracy of this reference value is simultaneously It is not very high, and the numerical value of MIPI transmission frequency and screen parameter is practical differs larger (MHz and tens, several hundred difference), Display screen horizontal screen parameter is affected to exhibit stabilization simultaneously, so consider to correct level based on actually detected result The value of screen parameter, so as to improve stability.
If the vertical screen parameter includes following at least one in addition, the screen parameter only includes vertical screen parameter Kind: the VBP, the VFP and the VAS, then the target screen parameter value can be equal to described with reference to screen parameter value, i.e., The porch value for adjusting vertical direction does not influence row scanning duration.
As it can be seen that, in the case where screen parameter includes horizontal screen parameter, electronic equipment being capable of root in the embodiment of the present application Actually detected result is combined to be modified reference screen parameter value according to row scanning duration constraint condition, to show after improving frequency hopping Display screen stability.
As can be seen that electromagnetic interference control method described in the embodiment of the present application, by being in view in electronic equipment When frequency mode, if display screen is in bright screen state, the target operating frequency of modem is obtained, obtains the first of display screen MIPI MIPI working frequency determines whether target operating frequency is interfered according to the first MIPI working frequency, if so, determining video Target video frame per second determines the 2nd MIPI working frequency corresponding with target video frame per second, by the MIPI working frequency of display screen It adjusts to the 2nd MIPI working frequency, in this way, can be in the case where not changing electronic equipment hardware design, in electronic equipment Display screen MIPI working frequency is dynamically adjusted at present in video mode, to eliminate or reduce its electricity to modem communication Magnetic disturbance obtains optimal communication performance.
Consistent with the abovely, Fig. 2 is a kind of flow diagram of electromagnetic interference control method disclosed in the embodiment of the present application. Applied to electronic equipment as shown in Figure 1A, the electronic equipment includes display screen and modem modem, the electromagnetic interference Control method includes the following steps:
201, when the electronic equipment is in video mode, if display screen is in bright screen state, obtain the modem's Target operating frequency.
202, the first MIPI working frequency of the display screen Mobile Industry Processor Interface MIPI is obtained.
203, determine whether the target operating frequency is interfered according to the first MIPI working frequency.
204, if so, obtaining the target video frame per second of the video.
205, the 2nd MIPI working frequency corresponding with the target video frame per second, the 2nd MIPI working frequency are determined What the first MIPI working frequency generated the target operating frequency is less than to the interference that the target operating frequency generates Interference.
206, the MIPI working frequency of the display screen is adjusted to the 2nd MIPI working frequency.
207, in the frame per second of the display screen when the variable quantity after MIPI frequency error factor is less than the first preset threshold, root The reference screen parameter value of the display screen is determined according to preset frame rate calculation formula and the 2nd MIPI working frequency.
208, according to the screen parameter for adjusting the display screen with reference to screen parameter value dynamic, target screen ginseng is obtained Numerical value, the screen parameter include the following at least one porch value in the preset frame rate calculation formula: after horizontal along HBP, Horizontal forward position HFP, it is vertical after along VBP, vertical front porch VFP, the width VSA of vertical synchronizing signal, horizontal synchronizing signal width HAS。
Wherein, the specific descriptions of above-mentioned steps 201- step 208 are referred to electromagnetic interference controlling party described in Figure 1B The corresponding description of method, details are not described herein.
As can be seen that electromagnetic interference control method described in the embodiment of the present application, by being in view in electronic equipment When frequency mode, if display screen is in bright screen state, the target operating frequency of modem is obtained, obtains the first of display screen MIPI MIPI working frequency determines whether target operating frequency is interfered according to the first MIPI working frequency, if so, obtaining video Target video frame per second determines the 2nd MIPI working frequency corresponding with the target video frame per second, and the MIPI of display screen is worked Frequency is adjusted to the 2nd MIPI working frequency, small in variable quantity of the frame per second after MIPI frequency error factor of the display screen When the first preset threshold, the reference screen parameter value of display screen is determined, adjusted according to reference screen parameter value dynamic described aobvious The screen parameter of display screen obtains target screen parameter value, in this way, can in the case where not changing electronic equipment hardware design, Electronic equipment is in video mode and dynamically adjusts display screen MIPI working frequency at present, to eliminate or reduce it to modem The electromagnetic interference of communication obtains optimal communication performance, and, improve display screen exhibit stabilization.
Consistent with the abovely, Fig. 3 is a kind of flow diagram of electromagnetic interference control method disclosed in the embodiment of the present application. Applied to electronic equipment shown in figure 1A, the electronic equipment includes display screen and modem modem, the electromagnetic interference control Method processed includes the following steps:
301, when the electronic equipment is in video mode, if display screen is in bright screen state, obtain the modem's Target operating frequency.
302, the first MIPI working frequency of the display screen MIPI is obtained.
303, it according to the corresponding relationship between preset MIPI working frequency and interfering frequency list, determines and described first The corresponding target jamming list of frequency of MIPI working frequency, the target jamming list of frequency include to work with the first MIPI Corresponding multiple first interfering frequencies of frequency.
304, by the multiple first interfering frequency in the target operating frequency and the target jamming list of frequency It is successively matched, if the target operating frequency is matched into any first interfering frequency in the multiple first interfering frequency Function determines that the target operating frequency is interfered.
305, the target video frame per second of the video is obtained, determines target corresponding with the target video frame per second of the video MIPI operating frequency range list, the target MIPI operating frequency range list include multiple MIPI working frequencies.
306, determine that every MIPI working frequency does the target operating frequency in the multiple MIPI working frequency Intensity value is disturbed, multiple interference strength values are obtained.
307, the corresponding 2nd MIPI work of interference strength value for being less than preset threshold in the multiple interference strength value is determined Working frequency.
308, the MIPI working frequency of the display screen is adjusted to the 2nd MIPI working frequency.
309, in the frame per second of the display screen when the variable quantity after MIPI frequency error factor is less than the first preset threshold, root The reference screen parameter value of the display screen is determined according to preset frame rate calculation formula and the 2nd MIPI working frequency.
310, according to the screen parameter for adjusting the display screen with reference to screen parameter value dynamic, target screen ginseng is obtained Numerical value, the screen parameter include the following at least one porch value in the preset frame rate calculation formula: after horizontal along HBP, Horizontal forward position HFP, it is vertical after along VBP, vertical front porch VFP, the width VSA of vertical synchronizing signal, horizontal synchronizing signal width HAS。
Wherein, the specific descriptions of above-mentioned steps 301- step 310 are referred to electromagnetic interference controlling party described in Figure 1B The corresponding description of method, details are not described herein.
As can be seen that electromagnetic interference control method described in the embodiment of the present application, by being in view in electronic equipment When frequency mode, if display screen is in bright screen state, the target operating frequency of modem and the first MIPI work of display screen MIPI are obtained Working frequency, if the first MIPI working frequency generates interference to target operating frequency, determination is corresponding with the target video frame per second of video Target MIPI operating frequency range list, determine in multiple MIPI working frequencies every MIPI working frequency to target operation frequency The interference strength value of rate obtains multiple interference strength values, determines the interference strength for being less than preset threshold in multiple interference strength values It is worth corresponding 2nd MIPI working frequency, the MIPI working frequency of display screen is adjusted to the 2nd MIPI working frequency, is being shown The frame per second of screen is adjusted when the variable quantity after MIPI frequency error factor is less than the first preset threshold according to reference screen parameter value dynamic The screen parameter of whole display screen obtains target screen parameter value, in this way, can move in the case where electronic equipment is in different user's scenes State adjusts display screen MIPI working frequency, to eliminate or reduce its electromagnetic interference to modem communication, obtains optimal logical Believe performance, and, improve display screen exhibit stabilization.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram of another kind electronic equipment disclosed in the embodiment of the present application, as shown, The electronic equipment includes processor, memory, communication interface, and one or more programs, wherein said one or multiple journeys Sequence is stored in above-mentioned memory, and is configured to be executed by above-mentioned processor, and above procedure includes for executing following step Rapid instruction:
When the electronic equipment is in video mode, if display screen is in bright screen state, the target of the modem is obtained Working frequency;
Obtain the first MIPI working frequency of the display screen Mobile Industry Processor Interface MIPI;
Determine whether the target operating frequency is interfered according to the first MIPI working frequency;
If so, obtaining the target video frame per second of the video;
Determine the 2nd MIPI working frequency corresponding with the target video frame per second, the 2nd MIPI working frequency is to institute The interference for stating target operating frequency generation is less than the interference that the first MIPI working frequency generates the target operating frequency;
The MIPI working frequency of the display screen is adjusted to the 2nd MIPI working frequency.
In a possible example, in terms of the target operating frequency for obtaining the modem, above procedure includes For executing the instruction of following steps:
Obtain the movement speed of the electronic equipment;
If the movement speed meets pre-set velocity range, targeted time period is determined according to the movement speed, with institute It states targeted time period and receives the target operating frequency that the modem is reported.
In a possible example, the target operating frequency is determined according to the first MIPI working frequency described Whether aspect, above procedure includes the instruction for executing following steps if being interfered:
According to the corresponding relationship between preset MIPI working frequency and interfering frequency list, determining and the first MIPI The corresponding target jamming list of frequency of working frequency, the target jamming list of frequency include and the first MIPI working frequency Corresponding multiple first interfering frequencies;
Successively by the multiple first interfering frequency in the target operating frequency and the target jamming list of frequency It is matched, if any first interfering frequency successful match in the target operating frequency and the multiple first interfering frequency, Determine that the target operating frequency is interfered.
In a possible example, in the determination the 2nd MIPI working frequency corresponding with the target video frame per second Aspect, above procedure include the instruction for executing following steps:
Determine target MIPI operating frequency range list corresponding with the target video frame per second, the target MIPI work Frequency range list includes multiple MIPI working frequencies;
Determine that every MIPI working frequency is strong to the interference of the target operating frequency in the multiple MIPI working frequency Angle value obtains multiple interference strength values;
Determine the 2nd MIPI work frequency corresponding less than the interference strength value of preset threshold in the multiple interference strength value Rate.
In a possible example, in the determination the 2nd MIPI working frequency corresponding with the target video frame per second Aspect, above procedure include the instruction for executing following steps:
Determine target MIPI operating frequency range list corresponding with the target video frame per second, the target MIPI work Frequency range list includes multiple MIPI working frequencies;
According to the corresponding relationship between preset MIPI working frequency and interfering frequency list, the multiple MIPI work is determined Every MIPI working frequency is corresponding in working frequency refers to interfering frequency list, obtains multiple with reference to interfering frequency list;
It will be each with reference in interfering frequency list in the target operating frequency and the multiple reference interfering frequency list Multiple interfering frequencies matched, obtain the corresponding matching result of the second interfering frequency list;
If the matching result is all interfering frequencies and target operation frequency in the second interfering frequency list It fails to match for rate, is determined according to the corresponding relationship between the MIPI working frequency and interfering frequency list and described second dry Disturb the corresponding 2nd MIPI working frequency of list of frequency.
In a possible example, the MIPI working frequency of the display screen is adjusted to the 2nd MIPI described When working frequency, above procedure further includes the instruction for executing following steps:
The display screen frame per second when the variable quantity after MIPI frequency error factor is less than the first preset threshold, according to pre- If frame per second calculation formula and the 2nd MIPI working frequency determine the reference screen parameter value of the display screen;
According to the screen parameter for adjusting the display screen with reference to screen parameter value dynamic, target screen parameter is obtained Value, the screen parameter includes the following at least one porch value in the preset frame rate calculation formula: along HBP, water after horizontal Flat forward position HFP, it is vertical after along VBP, vertical front porch VFP, the width VSA of vertical synchronizing signal, horizontal synchronizing signal width HAS。
In a possible example, the screen parameter includes horizontal screen parameter, and the horizontal screen parameter includes Following at least one: the HBP, the HFP and the HAS;
Described according to the screen parameter for adjusting the display screen with reference to screen parameter value dynamic, target screen is obtained In terms of parameter value, above procedure includes the instruction for executing following steps:
According to the horizontal screen parameter for adjusting the display screen with reference to screen parameter value dynamic, make the display screen Variable quantity of the row scanning duration after MIPI frequency error factor is less than the second preset threshold.
It is above-mentioned that mainly the scheme of the embodiment of the present application is described from the angle of method side implementation procedure.It is understood that , in order to realize the above functions, it comprises execute the corresponding hardware configuration of each function and/or software mould for electronic equipment Block.Those skilled in the art should be readily appreciated that, in conjunction with each exemplary unit of embodiment description presented herein And algorithm steps, the application can be realized with the combining form of hardware or hardware and computer software.Some function actually with Hardware or computer software drive the mode of hardware to execute, the specific application and design constraint item depending on technical solution Part.Professional technician can specifically realize described function to each using distinct methods, but this reality Now it is not considered that exceeding scope of the present application.
The embodiment of the present application can carry out the division of functional unit according to above method example to electronic equipment, for example, can With each functional unit of each function division of correspondence, two or more functions can also be integrated in a processing unit In.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.It needs It is noted that be schematical, only a kind of logical function partition to the division of unit in the embodiment of the present application, it is practical real It is current that there may be another division manner.
Referring to Fig. 5, Fig. 5 is a kind of structural schematic diagram of electromagnetic interference control device disclosed in the embodiment of the present application, answer For electronic equipment shown in figure 1A, the electronic equipment includes display screen and modem modem, the electromagnetic interference control Device processed includes acquiring unit 501, determination unit 502 and adjustment unit 503, wherein
The acquiring unit 501 is used for when the electronic equipment is in video mode, if display screen is in bright screen shape State obtains the target operating frequency of the modem;And obtain the first of the display screen Mobile Industry Processor Interface MIPI MIPI working frequency;
The determination unit 502, for whether determining the target operating frequency according to the first MIPI working frequency It is interfered;
The acquiring unit 501 is also used to obtain the video when determining that the target operating frequency is interfered Target video frame per second;
The determination unit 502 is also used to determine the 2nd MIPI working frequency corresponding with the target video frame per second, institute It states the 2nd MIPI working frequency and the first MIPI working frequency is less than to described to the interference that the target operating frequency generates The interference that target operating frequency generates;
The adjustment unit 503 works for adjusting the MIPI working frequency of the display screen to the 2nd MIPI Frequency.
Optionally, in terms of the target operating frequency for obtaining the modem, the acquiring unit 501 is specifically used for:
Obtain the movement speed of the electronic equipment;
If the movement speed meets pre-set velocity range, targeted time period is determined according to the movement speed, with institute It states targeted time period and receives the target operating frequency that the modem is reported.
Optionally, determine whether the target operating frequency is interfered according to the first MIPI working frequency described Aspect, the determination unit 502 are specifically used for:
According to the corresponding relationship between preset MIPI working frequency and interfering frequency list, determining and the first MIPI The corresponding target jamming list of frequency of working frequency, the target jamming list of frequency include and the first MIPI working frequency Corresponding multiple first interfering frequencies;
Successively by the multiple first interfering frequency in the target operating frequency and the target jamming list of frequency It is matched, if any first interfering frequency successful match in the target operating frequency and the multiple first interfering frequency, Determine that the target operating frequency is interfered.
Optionally, described true in terms of the determination the 2nd MIPI working frequency corresponding with the target video frame per second Order member 502 is specifically used for:
Determine target MIPI operating frequency range list corresponding with the target video frame per second, the target MIPI work Frequency range list includes multiple MIPI working frequencies;
Determine that every MIPI working frequency is strong to the interference of the target operating frequency in the multiple MIPI working frequency Angle value obtains multiple interference strength values;
Determine the 2nd MIPI work frequency corresponding less than the interference strength value of preset threshold in the multiple interference strength value Rate.
Optionally, described true in terms of the determination the 2nd MIPI working frequency corresponding with the target video frame per second Order member 502 is specifically used for:
Determine target MIPI operating frequency range list corresponding with the target video frame per second, the target MIPI work Frequency range list includes multiple MIPI working frequencies;
According to the corresponding relationship between preset MIPI working frequency and interfering frequency list, the multiple MIPI work is determined Every MIPI working frequency is corresponding in working frequency refers to interfering frequency list, obtains multiple with reference to interfering frequency list;
It will be each with reference in interfering frequency list in the target operating frequency and the multiple reference interfering frequency list Multiple interfering frequencies matched, obtain the corresponding matching result of the second interfering frequency list;
If the matching result is all interfering frequencies and target operation frequency in the second interfering frequency list It fails to match for rate, is determined according to the corresponding relationship between the MIPI working frequency and interfering frequency list and described second dry Disturb the corresponding 2nd MIPI working frequency of list of frequency.
Optionally, it is described the MIPI working frequency of the display screen is adjusted to the 2nd MIPI working frequency when, The determination unit 502 is also used to:
The display screen frame per second when the variable quantity after MIPI frequency error factor is less than the first preset threshold, according to pre- If frame per second calculation formula and the 2nd MIPI working frequency determine the reference screen parameter value of the display screen;
The adjustment unit 503, is also used to:
According to the screen parameter for adjusting the display screen with reference to screen parameter value dynamic, target screen parameter is obtained Value, the screen parameter includes the following at least one porch value in the preset frame rate calculation formula: along HBP, water after horizontal Flat forward position HFP, it is vertical after along VBP, vertical front porch VFP, the width VSA of vertical synchronizing signal, horizontal synchronizing signal width HAS。
Optionally, the screen parameter includes horizontal screen parameter, and the horizontal screen parameter comprises at least one of the following: The HBP, the HFP and the HAS;
Described according to the screen parameter for adjusting the display screen with reference to screen parameter value dynamic, target screen is obtained In terms of parameter value, the adjustment unit 503 is specifically used for:
According to the horizontal screen parameter for adjusting the display screen with reference to screen parameter value dynamic, make the display screen Variable quantity of the row scanning duration after MIPI frequency error factor is less than the second preset threshold.
As can be seen that electromagnetic interference control device described in the embodiment of the present application, by being in view in electronic equipment When frequency mode, if display screen is in bright screen state, the target operating frequency of modem is obtained, obtains the first of display screen MIPI MIPI working frequency determines whether target operating frequency is interfered according to the first MIPI working frequency, if so, determining video Target video frame per second determines the 2nd MIPI working frequency corresponding with target video frame per second, by the MIPI working frequency of display screen It adjusts to the 2nd MIPI working frequency, in this way, can be in the case where not changing electronic equipment hardware design, in electronic equipment Display screen MIPI working frequency is dynamically adjusted at present in video mode, to eliminate or reduce its electricity to modem communication Magnetic disturbance obtains optimal communication performance.
It should be noted that electronic equipment described in the embodiment of the present application is presented in the form of functional unit.Here Used term " unit " should be understood as meaning as widest as possible, for realizing pair of function described by each " unit " As for example can be integrated circuit ASIC, single circuit, for executing the processor of one or more softwares or firmware program (altogether Enjoying, dedicated or chipset) and memory, combinational logic circuit, and/or provide and realize other suitable groups of above-mentioned function Part.
Wherein, acquiring unit 501, determination unit 502 and adjustment unit 503 can be control circuit or processor.
The embodiment of the present application also provides a kind of computer storage medium, wherein computer storage medium storage is for electricity The computer program of subdata exchange, it is as any in recorded in above method embodiment which execute computer A kind of some or all of electromagnetic interference control method step.
The embodiment of the present application also provides a kind of computer program product, and the computer program product includes storing calculating The non-transient computer readable storage medium of machine program, the computer program are operable to that computer is made to execute such as above-mentioned side Some or all of any electromagnetic interference control method recorded in method embodiment step.
It should be noted that for the various method embodiments described above, for simple description, therefore, it is stated as a series of Combination of actions, but those skilled in the art should understand that, the application is not limited by the described action sequence because According to the application, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know It knows, the embodiments described in the specification are all preferred embodiments, related actions and modules not necessarily the application It is necessary.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment Point, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed device, it can be by another way It realizes.For example, the apparatus embodiments described above are merely exemplary, such as the division of the unit, it is only a kind of Logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine or can To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, It can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also be realized in the form of software program module.
If the integrated unit is realized in the form of software program module and sells or use as independent product When, it can store in a computer-readable access to memory.Based on this understanding, the technical solution of the application substantially or Person says that all or part of the part that contributes to existing technology or the technical solution can body in the form of software products Reveal and, which is stored in a memory, including some instructions are used so that a computer equipment (can be personal computer, server or network equipment etc.) executes all or part of each embodiment the method for the application Step.And memory above-mentioned includes: USB flash disk, read-only memory (read-only memory, ROM), random access memory The various media that can store program code such as (random access memory, RAM), mobile hard disk, magnetic or disk.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can It is completed with instructing relevant hardware by program, which can store in a computer-readable memory, memory It may include: flash disk, ROM, RAM, disk or CD etc..
The embodiment of the present application is described in detail above, specific case used herein to the principle of the application and Embodiment is expounded, the description of the example is only used to help understand the method for the present application and its core ideas; At the same time, for those skilled in the art can in specific embodiments and applications according to the thought of the application There is change place, in conclusion the contents of this specification should not be construed as limiting the present application.

Claims (10)

1. a kind of electromagnetic interference control method, which is characterized in that be applied to electronic equipment, the electronic equipment include display screen, Modem modem, which comprises
When the electronic equipment is in video mode, if display screen is in bright screen state, the target operation of the modem is obtained Frequency;
Obtain the first MIPI working frequency of the display screen Mobile Industry Processor Interface MIPI;
Determine whether the target operating frequency is interfered according to the first MIPI working frequency;
If so, obtaining the target video frame per second of the video;
Determine the 2nd MIPI working frequency corresponding with the target video frame per second, the 2nd MIPI working frequency is to the mesh The interference that mark working frequency generates is less than the interference that the first MIPI working frequency generates the target operating frequency;
The MIPI working frequency of the display screen is adjusted to the 2nd MIPI working frequency.
2. the method according to claim 1, wherein the target operating frequency for obtaining the modem, packet It includes:
Obtain the movement speed of the electronic equipment;
If the movement speed meets pre-set velocity range, targeted time period is determined according to the movement speed, with the mesh The mark time cycle receives the target operating frequency that the modem is reported.
3. method according to claim 1 or 2, which is characterized in that described to be determined according to the first MIPI working frequency Whether the target operating frequency is interfered, comprising:
It is determining to work with the first MIPI according to the corresponding relationship between preset MIPI working frequency and interfering frequency list The corresponding target jamming list of frequency of frequency, the target jamming list of frequency include corresponding with the first MIPI working frequency Multiple first interfering frequencies;
The target operating frequency and the multiple first interfering frequency in the target jamming list of frequency are successively carried out Matching determines if any first interfering frequency successful match in the target operating frequency and the multiple first interfering frequency The target operating frequency is interfered.
4. method according to claim 1-3, which is characterized in that the determination and the target video frame per second pair The 2nd MIPI working frequency answered, comprising:
Determine target MIPI operating frequency range list corresponding with the target video frame per second, the target MIPI working frequency Range list includes multiple MIPI working frequencies;
Determine every MIPI working frequency in the multiple MIPI working frequency to the interference strength value of the target operating frequency, Obtain multiple interference strength values;
Determine the corresponding 2nd MIPI working frequency of interference strength value for being less than preset threshold in the multiple interference strength value.
5. method according to claim 1-3, which is characterized in that the determination and the target video frame per second pair The 2nd MIPI working frequency answered, comprising:
Determine target MIPI operating frequency range list corresponding with the target video frame per second, the target MIPI working frequency Range list includes multiple MIPI working frequencies;
According to the corresponding relationship between preset MIPI working frequency and interfering frequency list, the multiple MIPI work frequency is determined Every MIPI working frequency is corresponding in rate refers to interfering frequency list, obtains multiple with reference to interfering frequency list;
By the target operating frequency and the multiple with reference to each with reference to more in interfering frequency list in interfering frequency list A interfering frequency is matched, and the corresponding matching result of the second interfering frequency list is obtained;
If the matching result be the second interfering frequency list in all interfering frequencies and the target operating frequency it is equal It fails to match, interferes frequency with described second according to the corresponding relationship between the MIPI working frequency and interfering frequency list is determining The corresponding 2nd MIPI working frequency of rate list.
6. method according to claim 1-5, which is characterized in that work in the MIPI by the display screen When frequency is adjusted to the 2nd MIPI working frequency, the method also includes:
The display screen frame per second when the variable quantity after MIPI frequency error factor is less than the first preset threshold, according to default frame Rate calculation formula and the 2nd MIPI working frequency determine the reference screen parameter value of the display screen;
According to the screen parameter for adjusting the display screen with reference to screen parameter value dynamic, target screen parameter value, institute are obtained Stating screen parameter includes the following at least one porch value in the preset frame rate calculation formula: after horizontal before HBP, level Along HFP, it is vertical after along VBP, vertical front porch VFP, the width VSA of vertical synchronizing signal, horizontal synchronizing signal width HAS.
7. according to the method described in claim 6, it is characterized in that, the screen parameter includes horizontal screen parameter, the water Flat screen parameter comprises at least one of the following: the HBP, the HFP and the HAS;
It is described according to the screen parameter for adjusting the display screen with reference to screen parameter value dynamic, obtain target screen parameter Value, comprising:
According to the horizontal screen parameter for adjusting the display screen with reference to screen parameter value dynamic, sweep the row of the display screen Variable quantity of the duration after MIPI frequency error factor is retouched less than the second preset threshold.
8. a kind of electromagnetic interference control device, which is characterized in that be applied to electronic equipment, the electronic equipment include display screen, Modem modem, the electromagnetic interference control device include:
Acquiring unit, for when the electronic equipment is in video mode, if display screen is in bright screen state, described in acquisition The target operating frequency of modem;And obtain the first MIPI work frequency of the display screen Mobile Industry Processor Interface MIPI Rate;
Determination unit, for determining whether the target operating frequency is interfered according to the first MIPI working frequency;
The acquiring unit is also used to obtain the target view of the video when determining that the target operating frequency is interfered Frequency frame per second;
The determination unit, is also used to determine corresponding with the target video frame per second the 2nd MIPI working frequency, described second MIPI working frequency is less than the first MIPI working frequency to the target work to the interference that the target operating frequency generates The interference that working frequency generates;
Adjustment unit, for adjusting the MIPI working frequency of the display screen to the 2nd MIPI working frequency.
9. a kind of electronic equipment, which is characterized in that including processor, memory, communication interface, and one or more programs, One or more of programs are stored in the memory, and are configured to be executed by the processor, described program packet Include the instruction for executing the step in the method according to claim 1 to 7.
10. a kind of computer readable storage medium, which is characterized in that storage is used for the computer program of electronic data interchange, In, the computer program makes computer execute the method according to claim 1 to 7.
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