CN106027084B - Reduce the method and device of noise - Google Patents
Reduce the method and device of noise Download PDFInfo
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- CN106027084B CN106027084B CN201610329727.3A CN201610329727A CN106027084B CN 106027084 B CN106027084 B CN 106027084B CN 201610329727 A CN201610329727 A CN 201610329727A CN 106027084 B CN106027084 B CN 106027084B
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- electronic equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/005—Reducing noise, e.g. humm, from the supply
Abstract
The embodiment of the invention discloses a kind of method and device for reducing noise, the method for reducing noise includes: the intensity for obtaining electronic equipment and receiving signal；Judge whether the intensity of electronic equipment reception signal is greater than a preset strength；If the intensity that electronic equipment receives signal is greater than preset strength, controlling electronic devices is run in the first mode of operation；If the intensity that electronic equipment receives signal is not more than preset strength, controlling electronic devices is run in the second mode of operation, reduces the noise that electronic equipment generates, to improve the sensitivity that electronic equipment receives signal.The present invention, which reduces the method for noise and device, can guarantee that electronic equipment in any environment can normal communication.
Description
Technical field
The present invention relates to electronic technology field, in particular to a kind of method and device for reducing noise.
Background technique
Currently, the mobile electronic equipments such as mobile phone, tablet computer, laptop are obtained in the various aspects that people live
It is widely applied, above-mentioned mobile electronic equipment is in use, it usually needs receive the nothing that external communication device is sent
Line signal with external communication device holding to communicate, but, certain specific environments inconsistent in each local received signal quality
Lower signal quality is poor, such as mountain area, tunnel, place below urban viaduct, and signal is usually weaker, influences whether electronic equipment
Normal communication, such as make a phone call, surf the Internet that it is limited to be easy.
In addition, the electronic building brick or device being arranged thereon can generate electromagnetic noise (noise) after electronic equipment running,
These electromagnetic noises also will have a direct impact on reception of the electronic equipment to signal, and electronic equipment is caused to receive the sensitivity of signal not
It is good.And present electronic functionalities are more and more, and the functional module that electronic equipment includes also gradually increases, functional module
The electromagnetic noise that increasing means that electronic equipment generates can also increase therewith, survey in addition, electronic equipment can all do some reliabilities
Examination, reliability test are typically all down in some maximum conditions using electronic equipment；So to guarantee to pass through reliability
Test, electronic equipment can all have biggish design margin, and biggish design margin also will increase the electromagnetic noise of electronic equipment；
And the way of the prior art is used to reduce the electromagnetic noise of electronic equipment, so that electronic equipment can be above-mentioned certain specific
Preferable signal receiving sensitivity can also be kept in environment, be currently to be difficult to accomplish, and can also reduce electronic equipment
Production yield.
Summary of the invention
The present invention provides a kind of method and device for reducing noise, can guarantee that electronic equipment in any environment can
Enough normal communications.
The technical solution is as follows:
The present invention provides a kind of methods for reducing noise comprising: obtain the intensity that electronic equipment receives signal；Judgement
Whether the intensity that the electronic equipment receives signal is greater than a preset strength；If the intensity that the electronic equipment receives signal is greater than
The preset strength then controls the electronic equipment and runs in the first mode of operation；If the electronic equipment receives signal
Intensity is not more than the preset strength, then controls the electronic equipment and run in the second mode of operation, reduce the electronics and set
The standby noise generated, to improve the sensitivity that the electronic equipment receives signal.
Further, the noise that the electronic equipment generates is reduced, receives the sensitive of signal to improve the electronic equipment
Degree, further includes:
By controlling the parameter for the high-speed differential signal that the electronic equipment generates, making an uproar for the electronic equipment generation is reduced
Sound.
Further, the parameter of the high-speed differential signal generated by the control electronic equipment, further includes:
Reduce the eye size of the high-speed differential signal of the timing controller generation of electronic equipment；Or
Reduce the dc-couple voltage of the high-speed differential signal of the timing controller generation of electronic equipment；Or
Increase the rise time of the high-speed differential signal of the timing controller generation of electronic equipment；Or
The spread spectrum project of the timing controller of electronic equipment is opened, to set the high-speed-differential of timing controller generation
The frequency range of signal.
Further, the noise that the electronic equipment generates is reduced, receives the sensitive of signal to improve the electronic equipment
Degree, further includes:
By controlling the parameter of the signal of the power conversion module output of the electronic equipment, reduces the electronic equipment and produce
Raw noise.
Further, pass through the parameter of the signal of the control power conversion module output, further includes:
Increase the rise time of the switching signal of the power conversion module output；Or
Stablize the frequency of the switching signal of the power conversion module output；Or
Stablize the duty ratio of the switching signal of the power conversion module output；Or
Increase the rise time of the driving voltage of the power conversion module output；Or
Reduce the electric current of the power conversion module output.
The present invention also provides a kind of devices for reducing noise comprising: obtain module, judgment module, first mode control
Molding block and second mode control module, wherein the acquisition module receives the intensity of signal for obtaining electronic equipment；
The judgment module, for judging whether the intensity of the electronic equipment reception signal is greater than a preset strength；First mould
Formula control module controls the electronics and sets if the intensity for the electronic equipment to receive signal is greater than the preset strength
It is standby to run in the first mode of operation；The second mode control module, if receiving the intensity of signal for the electronic equipment
It no more than the preset strength, then controls the electronic equipment and runs in the second mode of operation, reduce the electronic equipment and produce
Raw noise, to improve the sensitivity that the electronic equipment receives signal.
Technical solution provided in an embodiment of the present invention has the benefit that
The intensity of signal is received by obtaining electronic equipment；It is pre- to judge whether the intensity of electronic equipment reception signal is greater than one
If intensity；If the intensity that electronic equipment receives signal is greater than preset strength, controlling electronic devices is transported in the first mode of operation
Row；If the intensity that electronic equipment receives signal is not more than preset strength, controlling electronic devices is run in the second mode of operation,
The noise that electronic equipment generates is reduced, to improve the sensitivity that electronic equipment receives signal.To which electronic equipment is receiving signal
In the environment of intensity difference, by the way that the electronic noise of electronic equipment generation is effectively reduced, electronic equipment can be made to keep preferable letter
Number receiving sensitivity；In the case where receiving the preferable normal environment of signal, normal manipulation mode is maintained；And letter is received improving signal
Number sensitivity improves electronic product production yield at the same time it can also reduce design of electronic products difficulty.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the step flow chart of the method for the reduction noise that first embodiment of the invention provides；
Fig. 2 is the timing controller of electronic equipment and the attachment structure schematic diagram of source electrode driver；
Fig. 3 A and Fig. 3 B are the eye figures of high-speed differential signal；
Fig. 4 is the rise time schematic diagram of high-speed differential signal；
Fig. 5 is the structural schematic diagram of power conversion module；
Fig. 6 is the structural block diagram of the device for the reduction noise that second embodiment of the invention provides.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to the method proposed according to the present invention for reducing noise and device its specific embodiment, structure,
Feature and effect, detailed description is as follows.
For the present invention aforementioned and other technology contents, feature and effect refer to the preferable reality of schema in following cooperation
Applying can clearly be presented in example detailed description.By the explanation of specific embodiment, when predetermined mesh can be reached to the present invention
The technical means and efficacy taken be able to more deeply and it is specific understand, however institute's accompanying drawings are only to provide with reference to and say
It is bright to be used, it is not intended to limit the present invention.
First embodiment
Fig. 1 is the step flow chart of the method for the reduction noise that first embodiment of the invention provides.The embodiment of the present invention
Reduce noise method guarantee electronic equipment in any environment can normal communication, referring to FIG. 1, the reduction of the present embodiment
The method of noise, may comprise steps of 101-107.
Step 101, the intensity that electronic equipment receives signal is obtained.
Wherein, the signal strength that the i.e. received external communication device of intensity of signal is sent is received, is arranged in electronic equipment
Existing signal strength detection module the intensity of external communication signals can be received with real-time detection electronic equipment, and can be in electricity
The lattice number for indicating signal receiving strength is shown on sub- device display screen, therefore in this step, it can be by obtaining signal strength inspection
The electronic equipment for surveying module detection receives the intensity of external communication signals and obtains the intensity that electronic equipment receives signal.
Step 103, judge whether the intensity of electronic equipment reception signal is greater than a preset strength, if electronic equipment receives letter
Number intensity be greater than this preset strength, then step 105 is carried out, if the intensity that electronic equipment receives signal is default strong no more than this
Degree, then carry out step 107.
Wherein, preset strength is minimum signal strength needed for electronic equipment normal communication, when being greater than this preset strength,
It can guarantee that electronic equipment with the normal communication of external communication device, such as the communication such as makes a phone call, surfs the Internet in any environment.
Step 105, controlling electronic devices is run in the first mode of operation.
Wherein it is preferred to the device for reducing noise can be set, such as the operating system of electronic equipment includes two kinds of operations
Mode: first operator scheme and second operator scheme, first operator scheme can receive external communication device in electronic equipment
It is used in the case that communication signal quality is relatively good, each module is in stronger driving capability in electronic equipment at this time, is able to satisfy institute
There is module all to operate normally, while the electromagnetic noise that electronic equipment generates is bigger, but does not interfere with electronic equipment reception
The sensitivity of signal, i.e. electronic equipment are able to maintain in this case the normal communications function such as makes a phone call, surfs the Internet.
Step 107, controlling electronic devices is run in the second mode of operation, the noise that electronic equipment generates is reduced, to mention
High electronic equipment receives the sensitivity of signal.
Wherein, the poor feelings of the communication signal quality that second operator scheme can receive external communication device in electronic equipment
It is used under condition, each module is in weaker driving capability in electronic equipment at this time, that is, reduces the design margin of electronic product, but guarantee
It is used in everyday environments；And the communication functions such as it is able to satisfy and specifically makes a phone call, surf the Internet, while electronic equipment generates
Electromagnetic noise it is smaller, it is therefore an objective to when communication signal quality is weaker reduce electronic equipment generate noise, promoted noise
Than being finally reached the purpose for promoting the sensitivity that electronic equipment receives signal of communication.In the present embodiment, first operator scheme is positive
Normal operation mode, second operator scheme are low-noise operation mode, and the noise that electronic equipment generates when first operator scheme is greater than
The noise that electronic equipment generates when second operator scheme, when communication signal quality is preferable, control comes according to first operator scheme
Operate electronic equipment；When communication signal quality is weaker, control operates electronic equipment, such energy according to second operator scheme
Enough achieve the purpose that electronic equipment is able to maintain good communication in any environment.
It improves electronic equipment and receives the energy that the sensitivity of signal can make radio-based electronic devices have stronger capture weak signal
Power, though electronic equipment in the presence of a harsh environment when it receives signal weaker, signal receives highly sensitive radio-based electronic devices still
It so can receive the signal data of external communication device transmission, thus guarantee to maintain stable connection with external communication device, because
For from following formula:
S=10lg (KTB)+NF+SNR=PN+SNR
Wherein, S is the sensitivity for receiving signal, and unit is dBm；When SNR indicates electronic equipment demodulation received signal
Required signal-to-noise ratio, unit are dB；NF indicates the noise coefficient of electronic apparatus system, and unit is dBm.
Wherein, required signal-to-noise ratio is the bigger the better when demodulating received signal, can increase electronic apparatus system in this way
Reception signal performance.Signal-to-noise ratio (SIGNAL-NOTICE RATE, SNR) is measurement communication system communication reliability
One the key technical indexes；It can be indicated with formula S/N, S and N are the mean power of signal and noise respectively；Here signal
Refer to that from electronic device exterior, i.e. electronic equipment needs received signal, and noise is removed except received signal, is generated
Random extra；When signal quality dies down, to keep certain signal-to-noise ratio, then need to reduce noise source generation
Noise.
Preferably, may also include that in step 107
By the parameter for the high-speed differential signal that controlling electronic devices generates, the noise that electronic equipment generates is reduced.
Because the parameters such as the amplitude of high-speed differential signal and rise time will have a direct impact on the size of electromagnetic noise；Such as figure
Shown in 2, in the display panel of electronic equipment, reduce noise device for example operate in device in operating system 201 can be with
It is connected with timing controller 202, timing controller 202 is connected with source electrode driver 203 (source IC), wherein operation
System 201, which can export, displays signal to timing controller 202, and timing controller 202 generates and exports high-speed differential signal
To source electrode driver 203, this high-speed differential signal is the major source for generating electromagnetic interference signal, in order to guarantee in some high frequencies
Or the normal of electronic equipment shows and communicates under the critical conditions such as high-temperature operation, the high-speed-differential that usual controlling electronic devices generates
The parameter of signal, the combination including any one or a variety of methods in following 4 kinds of methods:
1. reducing the eye size for the high-speed differential signal that timing controller generates.
Wherein, eye figure, that is, voltage of high-speed differential signal and the graph of relation of time, such as eye Figure 30 1 and Fig. 3 B of Fig. 3 A
Shown in eye Figure 30 2, reduce eye size be mainly control sequential control chip output high-speed differential signal voltage magnitude,
So that eye figure reduce, such as Fig. 3 B high-speed differential signal voltage magnitude ratio Fig. 3 A it is small, eye Figure 30 2 of Fig. 3 B is also than Fig. 3 A
Eye Figure 30 1 it is small, alternatively, it is also possible to control reduce timing controller output high-speed differential signal size of current, because of root
It can be seen that according to formula U=I*R and adjust different electric current I, also available different eye size；Reduce eye size
Degree, can guarantee that electronic equipment is normally carried out communication use, it can the intensity for making electronic equipment receive signal is big
In preset strength, in addition, the eye size degree specifically reduced also need the specifically used environment according to electronic equipment and
It is fixed.
2. the dc-couple voltage (common for the high-speed differential signal that the timing controller for reducing electronic equipment generates
Mode voltage, VCM) size.
Wherein, the size degree for reducing the dc-couple voltage of the high-speed differential signal of timing controller output, is also wanted
It can guarantee that electronic equipment is normally carried out communication use, it can the intensity for making electronic equipment receive signal is strong greater than default
Degree.
3. the rise time for the high-speed differential signal that the timing controller for increasing electronic equipment generates.
Wherein, the rise time as shown in figure 4, the rise time be primarily referred to as high-speed differential signal amplitude from 10% to amplitude
90% this period of time, increases the degree of the rise time of the high-speed differential signal of timing controller output, also want to protect
Card electronic equipment is normally carried out communication use, it can electronic equipment is made to receive the intensity of signal i.e. greater than preset strength
It can.
4. spread spectrum (Spread spectrum, SSC) project of the timing controller of electronic equipment is opened, when setting
Sequence controls the frequency range for the high-speed differential signal that chip generates.
Wherein, when timing control chip operation, the peak value of the pulse of high-speed differential signal can generate electromagnetic interference
(EMI), spread spectrum technology can reduce electromagnetic interference caused by timing controller.When not encountering electromagnetic interference problem,
The value of this intermediate item should be all set to " Disabled ", system stability can be improved in this way with optimization system performance；If met
To electromagnetic interference problem, then this should be set as to " Enabled " to reduce electromagnetic interference, namely setting timing controller produces
The frequency range of raw high-speed differential signal, to reduce the noise of the high-speed differential signal of timing controller generation.Specifically set
Fixed frequency range is also wanted to guarantee that electronic equipment is normally carried out communication use, it can electronic equipment is made to receive signal
Intensity be greater than preset strength.
In addition, be also high speed signal because the operating system of electronic equipment is exported to the display signal of timing controller, because
Display signal can also be adjusted by the combination of one or more of method in above-mentioned 4 in this, to guarantee that electronics is set
It is standby normally to be communicated.
Preferably, may also include that in step 107
By the parameter for the signal that the power conversion module of controlling electronic devices exports, making an uproar for electronic equipment generation is reduced
Sound.
Wherein, DC-DC power source conversion module is often used in electronic equipment, the structural schematic diagram of power conversion module is such as
Shown in Fig. 5 comprising multiple pins 1,2 ..., 24, each pin exports corresponding signal, the work of this power conversion module 401
In the process, switch (SW) signal that switch pin 20 exports can be opened and closed constantly, this is also to generate electromagnetic signal
Another major source.Adjustable switch (SW) signal in practice reduces noise；Also it is defeated to can choose reduction power conversion module
Electric current out increases the methods such as power supply rise time, specifically, by the parameter for the signal that controling power conversion module exports,
May include any one in following 5 kinds of methods or a variety of combinations:
1. increasing the rise time of the switching signal of power conversion module output.
Wherein, the degree for specifically increasing the rise time is also wanted to guarantee that electronic equipment is normally carried out communication use,
The intensity that electronic equipment can be made to receive signal is greater than preset strength.
2. the frequency of the switching signal of stabilized power supply conversion module output (without using the frequency of variation).
Wherein, the frequency of the switching signal of stabilized power supply conversion module output, i.e., so that the frequency of switching signal keeps steady
Determine, that is, frequency will not change.The numerical value of specific frequency is also wanted to guarantee that electronic equipment is normally carried out communication use,
The intensity that electronic equipment can be made to receive signal is greater than preset strength.
3. the duty ratio of the switching signal of stabilized power supply conversion module output.
Wherein, the duty ratio of stable switch signal, i.e., so that the duty ratio of switching signal keeps stablizing, that is, duty ratio
It will not change.The numerical value of specific duty ratio is also wanted to guarantee that electronic equipment is normally carried out communication use, it can makes electricity
The intensity that sub- equipment receives signal is greater than preset strength.
4. increasing the rise time of the driving voltage of power conversion module output.
In addition, this driving voltage is also possible to the driving voltage of other modules of electronic equipment output.When specific increase rises
Between degree also want can to guarantee that electronic equipment is normally carried out communication use, it can so that electronic equipment is received the strong of signal
Degree is greater than preset strength.
5. reducing the electric current of power conversion module output.
Wherein, the degree for specifically reducing electric current is also wanted to guarantee that electronic equipment is normally carried out communication use
So that the intensity that electronic equipment receives signal is greater than preset strength.
In conclusion the method provided in an embodiment of the present invention for reducing noise, receives signal by obtaining electronic equipment
Intensity；Judge whether the intensity of electronic equipment reception signal is greater than a preset strength；If the intensity that electronic equipment receives signal is big
In preset strength, then controlling electronic devices is run in the first mode of operation；If the intensity that electronic equipment receives signal is not more than
Preset strength, then controlling electronic devices is run in the second mode of operation, the noise that electronic equipment generates is reduced, to improve electronics
The sensitivity of equipment reception signal.To which electronic equipment is under the environment of received signal strength difference, set by the way that electronics is effectively reduced
The standby electronic noise generated, can make electronic equipment keep preferable signal receiving sensitivity；Receiving, signal is preferably normal
Under environment, normal manipulation mode is maintained；And it is set improving signal receiving signal sensitivity at the same time it can also reduce electronic product
Difficulty is counted, electronic product production yield is improved.
The following are the device of the invention embodiments, and the details of not detailed description in Installation practice can refer to above-mentioned
Corresponding embodiment of the method.
Second embodiment
Fig. 6 is the main frame block diagram of the device for the reduction noise that second embodiment of the invention provides.Referring to FIG. 6, drop
The device of low noise includes: to obtain module 601, judgment module 603, first mode control module 605 and second mode control
Module 607.
Module 601 is obtained, the intensity of signal is received for obtaining electronic equipment；
Judgment module 603, for judging whether the intensity of electronic equipment reception signal is greater than a preset strength；
First mode control module 605 controls electricity if the intensity for electronic equipment to receive signal is greater than preset strength
Sub- equipment is run in the first mode of operation；
Second mode control module 607 controls if the intensity for electronic equipment to receive signal is not more than preset strength
Electronic equipment is run in the second mode of operation, reduces the noise that electronic equipment generates, and receives signal to improve electronic equipment
Sensitivity.
Preferably, second mode control module 607, comprising: the first control module 609.
First control module 609, the parameter of the high-speed differential signal for being generated by controlling electronic devices reduce electronics
The noise that equipment generates.
Preferably, the first control module 609 is also used to reduce the high-speed-differential that the timing controller of electronic equipment generates
The eye size of signal；Or reduce the dc-couple electricity of the high-speed differential signal of the timing controller generation of electronic equipment
Pressure；Or increase the rise time of the high-speed differential signal of the timing controller generation of electronic equipment；Or it opens electronics and sets
The spread spectrum project of standby timing controller, to set the frequency range of the high-speed differential signal of timing controller generation.
Preferably, second mode control module 607, comprising: the second control module 611.
Second control module 611, for the parameter for the signal that the power conversion module by controlling electronic devices exports, drop
The noise that low electronic equipment generates.
Preferably, the second control module 611, when being also used to increase the rising of the switching signal of power conversion module output
Between；Or the frequency of the switching signal of stabilized power supply conversion module output；Or the switch letter of stabilized power supply conversion module output
Number duty ratio；Or increase the rise time of the driving voltage of power conversion module output；Or reduce power conversion module
The electric current of output.
In conclusion the device provided in an embodiment of the present invention for reducing noise, receives signal by obtaining electronic equipment
Intensity；Judge whether the intensity of electronic equipment reception signal is greater than a preset strength；If the intensity that electronic equipment receives signal is big
In preset strength, then controlling electronic devices is run in the first mode of operation；If the intensity that electronic equipment receives signal is not more than
Preset strength, then controlling electronic devices is run in the second mode of operation, the noise that electronic equipment generates is reduced, to improve electronics
The sensitivity of equipment reception signal.To which electronic equipment is under the environment of received signal strength difference, set by the way that electronics is effectively reduced
The standby electronic noise generated, can make electronic equipment keep preferable signal receiving sensitivity；Receiving, signal is preferably normal
Under environment, normal manipulation mode is maintained；And it is set improving signal receiving signal sensitivity at the same time it can also reduce electronic product
Difficulty is counted, electronic product production yield is improved.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above are modified or are modified
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (2)
1. a kind of method for reducing noise, characterized in that it comprises:
Obtain the intensity that electronic equipment receives signal；
Judge whether the intensity of the electronic equipment reception signal is greater than a preset strength；
If the intensity that the electronic equipment receives signal is greater than the preset strength, the electronic equipment is controlled in the first operation
It is run under mode；
If the intensity that the electronic equipment receives signal is not more than the preset strength, the electronic equipment is controlled in the second behaviour
It is run under operation mode, reduces the noise that the electronic equipment generates, to improve the sensitivity that the electronic equipment receives signal；
Wherein, the noise that the electronic equipment generates is reduced also to wrap to improve the sensitivity that the electronic equipment receives signal
It includes:
By controlling the parameter for the high-speed differential signal that the electronic equipment generates, the noise that the electronic equipment generates is reduced；
Wherein, the parameter of the high-speed differential signal generated by the control electronic equipment, further includes:
Reduce the eye size of the high-speed differential signal of the timing controller generation of electronic equipment；Or reduce electronic equipment
The dc-couple voltage for the high-speed differential signal that timing controller generates；Or
Increase the rise time of the high-speed differential signal of the timing controller generation of electronic equipment；Or open electronic equipment
The spread spectrum project of timing controller, to set the frequency range of the high-speed differential signal of timing controller generation.
2. a kind of device for reducing noise, characterized in that it comprises: obtain module, judgment module, first mode control module
And second mode control module, wherein
The acquisition module receives the intensity of signal for obtaining electronic equipment；
The judgment module, for judging whether the intensity of the electronic equipment reception signal is greater than a preset strength；
The first mode control module, if the intensity for the electronic equipment to receive signal is greater than the preset strength,
The electronic equipment is controlled to run in the first mode of operation；
The second mode control module, if the intensity for the electronic equipment to receive signal is not more than the preset strength,
It then controls the electronic equipment to run in the second mode of operation, the noise that the electronic equipment generates is reduced, described in improving
The sensitivity of electronic equipment reception signal；The second mode control module, comprising:
First control module reduces the electricity for the parameter by controlling the high-speed differential signal that the electronic equipment generates
The noise that sub- equipment generates, first control module are also used to reduce the high speed that the timing controller of electronic equipment generates
The eye size of differential signal；Or reduce the dc-couple of the high-speed differential signal of the timing controller generation of electronic equipment
Voltage；Or increase the rise time of the high-speed differential signal of the timing controller generation of electronic equipment；Or open electronics
The spread spectrum project of the timing controller of equipment, to set the frequency range of the high-speed differential signal of timing controller generation.
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| CN108964682A (en) * | 2018-08-02 | 2018-12-07 | 北京车联天下信息技术有限公司 | Radio noise-reduction method, denoising device and electronic equipment |
| CN109672478B (en) * | 2019-01-02 | 2021-03-02 | 合肥京东方光电科技有限公司 | Display device, signal transmission anti-interference method thereof and time sequence controller |
| CN110557818B (en) * | 2019-09-12 | 2021-12-28 | 北京维普无限智能技术有限公司 | Method for controlling power consumption of wireless signal receiving equipment |
| CN112787500B (en) * | 2021-01-27 | 2022-11-04 | 展讯通信（上海）有限公司 | Control method, device, system, processor, terminal and medium of DC-DC converter |
| CN113490101A (en) * | 2021-07-15 | 2021-10-08 | 恒玄科技(北京)有限公司 | Wireless earphone and communication method thereof |
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