CN108600566B - Interference processing method and mobile terminal - Google Patents
Interference processing method and mobile terminal Download PDFInfo
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- CN108600566B CN108600566B CN201810404408.3A CN201810404408A CN108600566B CN 108600566 B CN108600566 B CN 108600566B CN 201810404408 A CN201810404408 A CN 201810404408A CN 108600566 B CN108600566 B CN 108600566B
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Abstract
The invention provides an interference processing method and a mobile terminal, wherein the method comprises the following steps: detecting an interference signal of a receiver; determining a frequency of the interfering signal; and adjusting the frequency of the interference signal to a target frequency, wherein the target frequency is a preset human ear auditory blind area frequency. The interference processing method provided by the invention can adjust the frequency of the interference signal of the receiver to the frequency of the auditory blind area of the human ear, thereby avoiding the user from hearing the current sound generated by the interference signal in the receiver, improving the effect of the mobile terminal on processing the current sound interference of the receiver and reducing the interference of the current sound.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an interference processing method and a mobile terminal.
Background
With the increasing popularity of mobile terminals, the functions that can be provided by mobile terminals are increasing, for example, the existing mobile terminals can provide functions such as photographing, full-screen and infrared sensing, and voice answering.
In order to meet the requirements of infrared sensing and voice receiving functions, the infrared sensor and the telephone receiver are arranged at the top end of the full-face screen. Because the visual area of full screen is bigger and bigger, the space that sets up infrared ray sensor and receiver is littleer and smaller, and the interval between infrared ray sensor and the receiver diminishes, and the interval between infrared ray sensor interconnecting link and the receiver interconnecting link also diminishes, leads to infrared ray sensor's pulse signal to cause the interference and produce the electric current sound to the receiver. Similarly, because the visible area of the full-face screen is larger and larger, the distance between the antenna and the receiver is too small, in the 2-Generation wireless telephone technology (2G) signal communication state, the signal of the antenna may interfere with the receiver to generate current sound, and in addition, under the influence of the wiring layout of the finished Circuit Board (PCBA), the Power Amplifier (Power Amplifier, PA) of the 2G signal may generate magnetic field, and the coil of the receiver may be excited by the magnetic field to generate current sound.
Aiming at the problem that the pulse signal of the infrared sensor interferes with a receiver to generate current sound, the space of an antenna, a camera and a camera flash lamp is generally reduced by the conventional mobile terminal, or a displayable area of a comprehensive display screen is reduced. This way can greatly influence the performance and reliability of antenna, camera and display screen. Aiming at the problem that PA of 2G signals can generate a magnetic field and a receiver coil is excited by the magnetic field to generate current sound, the wiring design of a Printed Circuit Board (PCB) needs to be changed, and the project progress can be greatly influenced. Aiming at the problem that the distance between an antenna and a receiver is too small and the antenna directly interferes the receiver to generate current sound in a 2G signal communication state, the design needs to be re-stacked, changed and re-opened or re-designed by PCBA, so that the development cost is greatly wasted and the production progress is influenced.
Therefore, the effect of the current acoustic interference of the receiver processed by the existing mobile terminal is poor.
Disclosure of Invention
The embodiment of the invention provides an interference processing method and a mobile terminal, and aims to solve the problem that the effect of processing current sound interference of a receiver by the existing mobile terminal is poor.
In order to solve the technical problem, the invention is realized as follows: detecting an interference signal of the telephone receiver; determining a frequency of the interfering signal; and adjusting the frequency of the interference signal to a target frequency, wherein the target frequency is a preset human ear auditory blind area frequency.
In a first aspect, an embodiment of the present invention provides an interference processing method, including:
detecting an interference signal of the telephone receiver;
determining a frequency of the interfering signal;
and adjusting the frequency of the interference signal to a target frequency, wherein the target frequency is a preset human ear auditory blind area frequency.
In a second aspect, an embodiment of the present invention further provides a mobile terminal, including:
the detection module is used for detecting an interference signal of the telephone receiver;
a determining module for determining a frequency of the interfering signal;
and the adjusting module is used for adjusting the frequency of the interference signal to a target frequency, wherein the target frequency is a preset human ear auditory blind area frequency.
In a third aspect, an embodiment of the present invention further provides a mobile terminal, including a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the interference processing method.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of the interference processing method described above.
In the embodiment of the invention, the interference signal of the telephone receiver is detected; determining a frequency of the interfering signal; and adjusting the frequency of the interference signal to a target frequency, wherein the target frequency is a preset human ear auditory blind area frequency. Therefore, the frequency of the interference signal of the receiver can be adjusted to the frequency of the auditory blind area of the human ear, so that the user is prevented from hearing the current sound generated by the interference signal in the receiver, the effect of the mobile terminal on processing the current sound interference of the receiver is improved, and the interference of the current sound is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of an interference processing method according to an embodiment of the present invention;
fig. 2 is one of the structural diagrams of a mobile terminal according to an embodiment of the present invention;
fig. 3 is a second flowchart of an interference processing method according to an embodiment of the present invention;
fig. 4 is a second block diagram of a mobile terminal according to an embodiment of the present invention;
fig. 5 is a third flowchart of an interference processing method according to an embodiment of the present invention;
fig. 6 is a third block diagram of a mobile terminal according to an embodiment of the present invention;
fig. 7 is a fourth structural diagram of a mobile terminal according to an embodiment of the present invention;
fig. 8 is a fifth structural diagram of a mobile terminal according to an embodiment of the present invention;
fig. 9 is a sixth structural diagram of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of an interference processing method provided in an embodiment of the present invention, where the interference processing method can be applied to a mobile terminal including a receiver, as shown in fig. 1, and includes the following steps:
In this embodiment, the interference signal may be an interference signal generated by a signal of another module of the mobile terminal to the receiver, for example, an 11.6KHZ pulse signal of the infrared module, or a Time Division Multiple Access (TDMA) 217HZ interference noise generated when the radio frequency transceiver module operates in a 2G signal frequency band.
The interference signal can be obtained by a sampling resistor connected in series with the receiver. Specifically, referring to fig. 2, the mobile terminal 200 shown in fig. 2 includes a digital-to-analog conversion module 201, a receiver driver 202, a sampling resistor 204, an amplifier 205, and an adder 206. A first output end of the digital-to-analog conversion module 201 is connected with a first input end of the receiver driver 202, and a second output end of the digital-to-analog conversion module 201 is connected with a second input end of the receiver driver 202; a first output end of the receiver driver 202 is connected to a first input end of the receiver 203, and a second output end of the receiver driver 202 is connected to a second input end of the receiver 203 through the sampling resistor 204; a first input end and a second input end of the amplifier 205 are respectively connected to two ends of the sampling resistor 204, a first input end of the adder 206 is connected to a first output end of the digital-to-analog conversion module 201, and a second input end of the adder 206 is connected to an output end of the amplifier 205.
After the digital-to-analog conversion module 201 converts the audio digital signal into a differential signal, a differential positive polarity signal is input to a first input end of the receiver driver 202 through a first output end of the digital-to-analog conversion module 201, and a differential negative polarity signal is input to a second input end of the receiver driver 202 through a second input end of the digital-to-analog conversion module 201. The receiver driver 202 amplifies the differential positive signals and the differential negative signals, the amplified differential positive signals are input to the first input terminal of the receiver 203 through the first output terminal of the receiver driver 202, and the amplified differential negative signals are input to the second input terminal of the receiver 203 through the second output terminal of the receiver driver 202 through the sampling resistor 204.
The amplifier 205 is a voltage amplifier, and can detect a voltage signal at both ends of the sampling resistor 204, and use the detected voltage signal as a sampling signal. The amplifier 205 amplifies the sampled signal, and the amplification factor of the sampled signal is adjustable, and is related to the gain of the receiver driver 202, the sampling resistor 204 and the dc resistance of the receiver 203. The adder 206 adds and mixes the amplified sampling signal and the differential positive polarity signal output by the first output end of the digital-to-analog conversion module 201, outputs a negative feedback signal to the amplifier 205, and adjusts the gain of the amplifier 205 according to the negative feedback signal, so that the dc component output by the adder 206 is minimum, that is, the magnitude of the differential negative polarity signal in the amplified sampling signal is equal to the magnitude of the differential positive polarity signal output by the first output end of the digital-to-analog conversion module 201, so that the dc component after the positive and negative cancellation of the differential positive polarity signal and the differential negative polarity signal in the adder 206 is the minimum, and the dc component of the minimum is the interference signal.
And step 102, determining the frequency of the interference signal.
In this embodiment, the interference signal is a direct current component, and may be converted into a digital signal, and the frequency of the digital signal is extracted as the frequency of the interference signal.
Referring to fig. 2 again, the mobile terminal shown in fig. 2 further includes an analog-to-digital conversion module 207 and a frequency extraction sub-module 208. The analog-to-digital conversion module 207 is connected to the adder 206, and the analog-to-digital conversion module 207 is further connected to the frequency extraction sub-module 208. The analog-to-digital conversion module 207 receives the interference signal output by the adder 206, converts the interference signal into a digital signal, and transmits the digital signal to the frequency extraction sub-module 208, and the frequency extraction sub-module 208 extracts the frequency of the digital signal as the frequency of the interference signal.
And 103, adjusting the frequency of the interference signal to a target frequency.
In this embodiment, the target frequency is a preset frequency of the auditory blind area of the human ear.
It is understood that the frequency range generally covered by the human auditory sense is 20HZ to 20KHZ, and the sound above 20KHZ cannot be heard by human ears, so the preset human auditory sense dead zone frequency can be set to a frequency higher than 20KHZ, such as 21KHZ, 25KHZ, 27KHZ, or a frequency lower than 20 HZ. In this step 103, an anti-interference signal may be transmitted, and the frequency of the interference signal is adjusted to a target frequency by superimposing the anti-interference signal and the interference signal. Therefore, the frequency of the interference signal is adjusted to the target frequency, so that the frequency of the interference signal can be the frequency of the auditory blind area of the human ear, the user cannot hear the current sound generated by the interference signal from the telephone receiver, the current sound can be prevented from interfering the telephone receiver, and the effect of processing the current sound interference of the telephone receiver is improved.
In the embodiment of the present invention, the mobile terminal may be any mobile terminal including two cameras, for example: a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or the like.
The interference processing method of the embodiment of the invention detects the interference signal of the telephone receiver; determining a frequency of the interfering signal; and adjusting the frequency of the interference signal to a target frequency, wherein the target frequency is a preset human ear auditory blind area frequency. Therefore, the frequency of the interference signal of the receiver can be adjusted to the frequency of the auditory blind area of the human ear, so that the user is prevented from hearing the current sound generated by the interference signal in the receiver, the effect of the mobile terminal on processing the current sound interference of the receiver is improved, and the interference of the current sound is reduced.
Referring to fig. 3, fig. 3 is a flowchart of an interference processing method provided in an embodiment of the present invention, where the interference processing method can be applied to a mobile terminal including a receiver. As shown in fig. 3, the method comprises the following steps:
In this embodiment, the mobile terminal may be the mobile terminal 200 shown in fig. 2, and the mobile terminal 200 includes a digital-to-analog conversion module 201, a receiver driver 202, a sampling resistor 204, an amplifier 205, and an adder 206.
A first output end of the digital-to-analog conversion module 201 is connected with a first input end of the receiver driver 202, and a second output end of the digital-to-analog conversion module 201 is connected with a second input end of the receiver driver 202; a first output end of the receiver driver 202 is connected to a first input end of the receiver 203, and a second output end of the receiver driver 202 is connected to a second input end of the receiver 203 through the sampling resistor 204; a first input end and a second input end of the amplifier 205 are respectively connected to two ends of the sampling resistor 204, a first input end of the adder 206 is connected to a first output end of the digital-to-analog conversion module 201, and a second input end of the adder 206 is connected to an output end of the amplifier 205.
Optionally, when applied to the mobile terminal 200 shown in fig. 2, the step 301 may include the following steps:
acquiring a first differential positive polarity signal from a first output end of the digital-to-analog conversion module 201 through the adder 206;
acquiring a sampling signal from the sampling resistor 204 through the amplifier 205, and amplifying the sampling signal to obtain a signal to be superimposed, where the signal to be superimposed includes a first differential negative-polarity signal equal to the first differential positive-polarity signal in size;
the adder 206 is used to add the first differential positive-polarity signal and the signal to be added, and the obtained added signal is used as the interference signal.
In this embodiment, after the digital-to-analog conversion module 201 converts the audio digital signal into a differential signal, a differential positive-polarity signal is input to a first input terminal of the receiver driver 202 through a first output terminal of the digital-to-analog conversion module 201, and a differential negative-polarity signal is input to a second input terminal of the receiver driver 202 through a second input terminal of the digital-to-analog conversion module 201. The receiver driver 202 amplifies the differential positive signals and the differential negative signals, the amplified differential positive signals are input to the first input terminal of the receiver 203 through the first output terminal of the receiver driver 202, and the amplified differential negative signals are input to the second input terminal of the receiver 203 through the second output terminal of the receiver driver 202 through the sampling resistor 204.
In this embodiment, the interference signal may be an interference signal generated by a signal of another module of the mobile terminal to the receiver. Specifically, referring to fig. 2 again, the mobile terminal 200 further includes a central processor 2012, an infrared module 209 and a radio frequency transceiver module 2011, wherein the central processor 2012 is connected to the infrared module 209 and the radio frequency transceiver module 2011 respectively. For example, when the pulse signal of the infrared module 209 is 11.6HZ or the rf transceiver module 2011 is in the 2G signal operating frequency band, an interference signal may be generated to the receiver, and current sound may appear in the receiver. At this time, the sampling signal obtained from the sampling resistor 204 by the amplifier 205 is a voltage signal, and the voltage signal is a sum of voltages generated by the sampling resistor 204 by the differential negative polarity signal and the interference signal.
In this embodiment, the amplification factor of the sampling signal is related to the resistance of the receiver 203, the gain of the sampling resistor 204 and the gain of the receiver driver 202, in this embodiment, the negative feedback output terminal of the adder 206 is connected to the feedback input terminal of the amplifier 205, the amplifier 205 receives the negative feedback signal output by the negative feedback output terminal of the adder, and amplifies the sampling signal by adjusting the gain of the amplifier 205, so that the differential negative polarity signal in the sampling signal is adjusted to be the first differential negative polarity signal with the same size as the first differential positive polarity signal output by the first output terminal of the digital-to-analog conversion module 201, and the signal to be superimposed is obtained, i.e., the signal to be superimposed includes the first differential positive polarity signal with the same size as the first differential negative polarity signal.
And adding and mixing a first differential positive-polarity signal and the signal to be superimposed through an adder 206, and after the first differential positive-polarity signal is cancelled with a first differential negative-polarity signal in the signal to be superimposed, obtaining a superimposed signal with the minimum direct-current component, namely an interference signal.
Therefore, the interference signal in the receiver can be detected quickly, and the accuracy of the interference signal is improved.
It should be noted that this embodiment may also be applied to the embodiment corresponding to fig. 1 to achieve the same beneficial effects, and details are not repeated herein to avoid repetition.
In this embodiment, the mobile terminal may be the mobile terminal 400 shown in fig. 4, where the mobile terminal 400 includes: a digital-to-analog conversion module 401, a receiver driver 402, a sampling resistor 4014, an amplifier 405 and an adder 406;
a first output end of the digital-to-analog conversion module 401 is connected with a first input end of the receiver driver 402, and a second output end of the digital-to-analog conversion module 401 is connected with a second input end of the receiver driver 402; a first output end of the receiver driver 402 is connected with a first input end of the receiver 403 through the sampling resistor 4014, and a second output end of the receiver driver 402 is connected with a second input end of the receiver 403; a first input end and a second input end of the amplifier 405 are respectively connected to two ends of the sampling resistor 4014, a first input end of the adder 406 is connected to a second output end of the digital-to-analog conversion module 401, and a second input end of the adder 406 is connected to an output end of the amplifier 405.
Optionally, when applied to the mobile terminal 400 shown in fig. 4, the step 301 may include the following steps:
acquiring a second differential negative polarity signal from a second output end of the digital-to-analog conversion module 401 through the adder 406;
acquiring a sampling signal from the sampling resistor 4014 through the amplifier 405, and amplifying the sampling signal to obtain a signal to be superimposed, wherein the signal to be superimposed comprises a second differential positive-polarity signal which is equal to the second differential negative-polarity signal in size;
and superposing the second differential negative-polarity signal and the signal to be superposed through the adder 406, and taking the obtained superposed signal as the interference signal.
In this embodiment, after the digital-to-analog conversion module 401 converts the audio digital signal into a differential signal, a differential positive-polarity signal is input to a first input terminal of the receiver driver 402 through a first output terminal of the digital-to-analog conversion module 401, and a differential negative-polarity signal is input to a second input terminal of the receiver driver 402 through a second input terminal of the digital-to-analog conversion module 401. The receiver driver 402 amplifies the differential positive signals and the differential negative signals, the first output terminal of the receiver driver 402 inputs the amplified differential positive signals to the first input terminal of the receiver 403 through the sampling resistor 4014, and the second output terminal of the receiver driver 402 inputs the amplified differential negative signals to the second input terminal of the receiver 403.
In this embodiment, the interference signal may be an interference signal generated by a signal of another module of the mobile terminal to the receiver. Specifically, referring to fig. 4, the mobile terminal 400 further includes a central processing unit 4012, an infrared module 409 and a radio frequency transceiver module 4011, wherein the central processing unit 4012 is connected to the infrared module 409 and the radio frequency transceiver module 4011, and when a pulse signal of the infrared module 409 is 11.6HZ or the radio frequency transceiver module 4011 is in a 2G signal working frequency band, an interference signal of 217HZ is generated to the receiver, so that current sound occurs to the receiver. At this time, the sampling signal obtained from the sampling resistor 4014 through the amplifier 405 is a voltage signal, and the voltage signal is a sum of voltages generated by the differential negative polarity signal and the interference signal to the sampling resistor 4014.
In this embodiment, the amplification factor of the sampling signal is related to the resistance of the receiver 403, the sampling resistance 4014 and the gain of the receiver driver 402. The negative feedback output end of the adder 406 is connected to the feedback input end of the amplifier 405, the amplifier 405 receives the negative feedback signal output by the negative feedback output end of the adder 406, and amplifies the sampling signal by adjusting the gain of the amplifier 405 to obtain a signal to be superimposed, so that the differential positive polarity signal in the sampling signal is adjusted to a second differential positive polarity signal having the same magnitude as a second differential negative polarity signal output by the second output end of the digital-to-analog conversion module 401, so as to obtain the signal to be superimposed, i.e., the signal to be superimposed includes the second differential positive polarity signal having the same magnitude as the second differential negative polarity signal.
And adding and mixing a second differential negative-polarity signal and the signal to be superimposed through an adder 406, and after the second differential negative-polarity signal is cancelled with a second differential positive-polarity signal in the signal to be superimposed, obtaining a superimposed signal with the minimum direct-current component, namely an interference signal.
Therefore, the interference signal in the receiver can be detected quickly, and the accuracy of the interference signal is improved.
It should be noted that this embodiment may also be applied to the embodiment corresponding to fig. 1 to achieve the same beneficial effects, and details are not repeated herein to avoid repetition.
Optionally, the step 302 may include the following steps:
performing analog-to-digital conversion on the interference signal to obtain a digital signal;
and taking the frequency extracted from the digital signal as the frequency of the interference signal.
For example, referring to fig. 2, the mobile terminal 200 shown in fig. 2 includes an analog-to-digital conversion module 207 and a frequency extraction sub-module 208. The analog-to-digital conversion module 207 is connected to the adder 206, and the analog-to-digital conversion module 207 is further connected to the frequency extraction sub-module 208. The analog-to-digital conversion module 207 receives the interference signal output by the adder 206, converts the interference signal into a digital signal, and transmits the digital signal to the frequency extraction sub-module 208, and the frequency extraction sub-module 208 extracts the frequency of the digital signal as the frequency of the interference signal.
Therefore, the frequency of the interference signal can be determined quickly, and the accuracy of the frequency of the interference signal is improved.
It should be noted that this embodiment may also be applied to the embodiment corresponding to fig. 1 to achieve the same beneficial effects, and details are not repeated herein to avoid repetition.
Optionally, the following steps may be further included before step 301:
detecting N first interference signals generated by N modules in a working state on the telephone receiver, wherein N is a positive integer;
extracting N frequencies from the N first interference signals respectively;
establishing an incidence relation between the N modules and the N frequencies;
step 303 may include the steps of:
determining a target module associated with the frequency of the interference signal from the association between the N modules and the N frequencies.
In this embodiment, the N modules may include: infrared module and radio frequency transceiver module etc.. For example, an association relationship between the infrared module and the 11.KHZ interference signal may be established, and an association relationship between the radio frequency transceiver module and the 217HZ interference signal may be established. In the case that the frequency of the interference signal is 217HZ, according to the association relationship, the target module associated with the 217HZ interference signal can be determined to be the radio frequency transceiver module.
It is supplementary to be noted that, a target module corresponding to the frequency of the interference signal may be further determined according to a module signal frequency library of the mobile terminal, where the module signal frequency library includes: the working frequency of the module and the frequency of the interference signal generated by the receiver when the module is at the corresponding working frequency are in corresponding relation.
For example, referring to the mobile terminal 200 shown in fig. 2, the mobile terminal 200 includes a frequency comparison sub-module 2010, a central processing unit 2012, an infrared module 209, a radio frequency transceiver module 2011 and a module signal frequency bank 2013, wherein the central processing unit 2012 is respectively connected to the frequency comparison sub-module 2010, the infrared module 209, the radio frequency transceiver module 2011 and the module signal frequency bank 2013. The module signal frequency library 2013 stores a corresponding relationship between the operating frequency of the module and the frequency of the interference signal generated by the module to the receiver at the corresponding operating frequency, for example, when the operating frequency of the infrared module is 11.6KHZ, the frequency of the interference signal generated by the receiver is 11.6KHZ, and when the radio frequency transceiver module operates at a 2G signal frequency band, the frequency of the interference signal generated by the receiver is 217HZ, and may further include a corresponding relationship between other modules and the frequencies of the corresponding interference signals, which is not limited herein. The plurality of interference signals are infrared pulse signals of 11.6KHZ, the frequency comparison sub-module 2010 can determine that the target module is an infrared module by searching the module signal frequency bank 2013, and the frequency of the plurality of interference signals is 217HZ, and then the frequency comparison sub-module 2010 can determine that the target module is a radio frequency transceiver module by searching the module signal frequency bank 2013. The central processing unit 2012 can extract the working frequency of each module of the mobile terminal in real time, and update the frequency of the interference signal generated by the receiver when each module is at the corresponding working frequency, and synchronously update the working frequency of each module in the module signal frequency bank 2013 and the frequency of the interference signal generated by the receiver when each module is at the corresponding working frequency.
In this embodiment, the target frequency is a preset frequency of the auditory blind area of the human ear. The target operating frequency includes: and the working frequency is in the same frequency band as the current working frequency, or is in a different frequency band from the current working frequency.
For example, in a case where the target module is an infrared module, the interference signal is an infrared pulse signal, and the frequency of the infrared pulse signal of the infrared module is adjusted to be greater than 20KHZ, so that the frequency of the infrared pulse signal, i.e., the interference signal generated by the infrared module, can be adjusted to be a preset frequency of the auditory blind area of the human ear. At this time, the target operating frequency may be an operating frequency in the same frequency band as the current operating frequency of the infrared module.
Under the condition that the target module is the radio frequency transceiver module, the interference signal is 217HZ interference signal generated when the radio frequency transceiver module works in a 2G signal frequency band, the generation of 217HZ interference signal can be avoided by adjusting the working frequency of the radio frequency transceiver module to a 3G, 4G or 5G signal frequency band, and the frequency of the interference signal generated by the radio frequency transceiver module is adjusted to be preset human ear auditory blind area frequency. At this time, the target operating frequency is an operating frequency which is in a frequency band different from the current operating frequency of the radio frequency transceiver module. The interference processing method of the embodiment of the invention detects the interference signal of the telephone receiver; determining a frequency of the interfering signal; determining a target module generating the interference signal in the mobile terminal; and adjusting the frequency of the interference signal to a target frequency by adjusting the current working frequency of the target module to the target working frequency, wherein the target working frequency is a preset human ear auditory blind area frequency. Therefore, the frequency of the interference signal of the receiver can be adjusted to the frequency of the auditory blind area of the human ear, so that the user is prevented from hearing the current sound generated by the interference signal in the receiver, the effect of the mobile terminal on processing the current sound interference of the receiver is improved, and the interference of the current sound is reduced.
Referring to fig. 5, fig. 5 is a flowchart of an interference processing method according to an embodiment of the present invention, where the interference processing method can be applied to the mobile terminal shown in fig. 2 or fig. 4. As shown in fig. 5, the method comprises the following steps:
In this embodiment, the interference signal is processed only when the receiver is in the working state, so that the electric quantity can be saved.
This step can refer to step 101 in the embodiment shown in fig. 1 and step 301 in the embodiment shown in fig. 3, and is not described herein again to avoid repetition.
In the case that the mobile terminal is the mobile terminal 200 shown in fig. 2, the amplifier acquires the sampling signal from the sampling resistor 204, and amplifies the sampling signal to obtain a signal to be superimposed, where the signal to be superimposed includes a first differential negative-polarity signal having the same magnitude as the first differential positive-polarity signal.
In the case that the mobile terminal is the mobile terminal 400 shown in fig. 4, the amplifier acquires a sampling signal from the sampling resistor 4014, and amplifies the sampling signal to obtain a signal to be superimposed, where the signal to be superimposed includes a second differential positive-polarity signal having the same size as the second differential negative-polarity signal;
and step 504, addition operation.
When the mobile terminal is the mobile terminal 200 shown in fig. 2, the adder 206 is used to add the first differential positive-polarity signal output by the first output end of the digital-to-analog conversion module 201 and the signal to be added, and the obtained added signal is used as the interference signal.
When the mobile terminal is the mobile terminal 400 shown in fig. 4, the adder 406 adds and mixes the second differential negative-polarity signal output by the second output terminal of the digital-to-analog conversion module 401 and the signal to be superimposed, and after the second differential negative-polarity signal and the second differential positive-polarity signal in the signal to be superimposed are cancelled, the superimposed signal with the minimum direct-current component is the interference signal.
And step 505, analog-to-digital conversion.
For example, in the case that the mobile terminal is the mobile terminal 200 shown in fig. 2, the analog-to-digital conversion module 207 converts the interference signal into a digital signal.
For example, in the case that the mobile terminal is the mobile terminal 200 shown in fig. 2, the frequency extraction sub-module 208 extracts a frequency from the digital signal input by the analog-to-digital conversion module 207, and the frequency extracted from the digital signal is used as the frequency of the interference signal. For example, when the infrared pulse signal is an interference signal, the frequency of the interference signal is 11.6KHZ, and the frequency of the interference signal generated by the radio frequency transceiver module operating in the 2G signal frequency band is 217 HZ.
And step 507, frequency comparison.
In this implementation, the frequency of the extracted interference signal is compared with the frequency of the interference signal in a module signal frequency library, and a target module generating the interference signal to the receiver is determined, where the target module includes an infrared module and a radio frequency transceiver module. The module signal frequency library comprises: the working frequency of the module and the frequency of the interference signal generated by the receiver when the module is at the corresponding working frequency are in corresponding relation.
And step 508, processing by the central processing unit.
For example, when the mobile terminal is the mobile terminal 200 shown in fig. 2, the central processor 2012 can extract the operating frequencies of the modules of the mobile terminal and the frequencies of the interference signals generated by the receivers of the modules at the current operating frequency in real time, and synchronously update the operating frequencies of the modules in the module signal frequency bank 2013 and the frequencies of the interference signals generated by the receivers of the modules at the corresponding operating frequencies. The module of the mobile terminal may include an infrared module, a radio frequency transceiver module, and the like, which are not limited herein.
In step 509, the interference signal is determined to be an infrared pulse signal.
For example, when the frequency of the interference signal is 11.6KHZ, the interference signal is determined as an infrared pulse signal.
The frequency of the infrared pulse signal of the infrared module is adjusted to be more than 20KHZ, so that the frequency of the infrared pulse signal, namely the frequency of the interference signal generated by the infrared module, can be adjusted to be the preset frequency of the auditory blind area of the human ear. In this case, the frequency of the interference signal is a frequency that cannot be heard by human ears, and the influence of the interference signal can be reduced.
In step 5010, the interference signal is determined to be a TDMA signal of 217 HZ.
For example, when the frequency of the interference signal is 217HZ, the interference signal is determined to be a TDMA signal of 217 HZ.
The 217HZ TDMA signal is an 217HZ interference signal generated when the radio frequency transceiver module works in a 2G signal frequency band, the 217HZ interference signal can be avoided when the working frequency of the radio frequency transceiver module is adjusted to be a 3G, 4G or 5G signal frequency band, the frequency of the interference signal generated by the radio frequency transceiver module is adjusted to be a preset human ear auditory blind area frequency, the frequency of the interference signal cannot be heard by human ears, and the influence of the interference signal can be reduced.
Therefore, the harmful influence of the infrared module and the radio frequency transceiving module on interference signals generated by the telephone receiver can be reduced, the effect of the mobile terminal on processing the current sound interference of the telephone receiver is improved, and the current sound interference is reduced.
Referring to fig. 6, fig. 6 is a structural diagram of a mobile terminal according to an embodiment of the present invention, and as shown in fig. 6, the mobile terminal 600 includes: the detection module 601, the determination module 602, and the adjustment module 603, the detection module 601 is connected to the determination module 602, and the determination module 602 is further connected to the adjustment module 603, where:
a detecting module 601, configured to detect an interference signal of the receiver;
a determining module 602, configured to determine a frequency of the interference signal;
an adjusting module 603, configured to adjust the frequency of the interference signal to a target frequency, where the target frequency is a preset frequency of a blind area of human ear hearing.
Optionally, as shown in fig. 7, the adjusting module 603 includes:
a determining submodule 6031, configured to determine, according to the frequency of the interference signal, a target module in the mobile terminal that generates the interference signal;
an adjusting submodule 6032, configured to adjust the frequency of the interference signal to a target frequency by adjusting the current operating frequency of the target module to the target operating frequency.
Optionally, the detecting module 601 is further configured to detect N first interference signals generated by the N modules in the working state to the receiver, where N is a positive integer;
as shown in fig. 8, the mobile terminal 600 further includes:
an extracting module 604, configured to extract N frequencies from the N first interference signals respectively;
an establishing module 605, configured to establish an association relationship between the N modules and the N frequencies;
the determining sub-module 6031 is further configured to determine a target module associated with the frequency of the interference signal from the association relationship between the N modules and the N frequencies.
Optionally, the detecting module 601 includes: the digital-to-analog conversion module, the receiver driver, the sampling resistor, the amplifier and the adder;
a first output end of the digital-to-analog conversion module is connected with a first input end of the telephone receiver drive, and a second output end of the digital-to-analog conversion module is connected with a second input end of the telephone receiver drive; the first output end of the telephone receiver drive is connected with the first input end of the telephone receiver, and the second output end of the telephone receiver drive is connected with the second input end of the telephone receiver through the sampling resistor; a first input end and a second input end of the amplifier are respectively connected with two ends of the sampling resistor, a first input end of the adder is connected with a first output end of the digital-to-analog conversion module, and a second input end of the adder is connected with an output end of the amplifier;
the adder obtains a first differential positive-polarity signal from a first output end of the digital-to-analog conversion module;
the amplifier acquires a sampling signal from the sampling resistor and amplifies the sampling signal to obtain a signal to be superimposed, wherein the signal to be superimposed comprises a first differential negative-polarity signal which is equal to the first differential positive-polarity signal in size;
and the adder superposes the first difference positive-polarity signal and the signal to be superposed, and the obtained superposed signal is used as the interference signal.
Optionally, the detecting module 601 includes:
the digital-to-analog conversion module, the receiver driver, the sampling resistor, the amplifier and the adder;
a first output end of the digital-to-analog conversion module is connected with a first input end of the telephone receiver drive, and a second output end of the digital-to-analog conversion module is connected with a second input end of the telephone receiver drive; the first output end of the telephone receiver drive is connected with the first input end of the telephone receiver through the sampling resistor, and the second output end of the telephone receiver drive is connected with the second input end of the telephone receiver; a first input end and a second input end of the amplifier are respectively connected with two ends of the sampling resistor, a first input end of the adder is connected with a second output end of the digital-to-analog conversion module, and a second input end of the adder is connected with an output end of the amplifier;
the adder obtains a second differential negative-polarity signal from a second output end of the digital-to-analog conversion module;
the amplifier acquires a sampling signal from the sampling resistor and amplifies the sampling signal to obtain a signal to be superposed, wherein the signal to be superposed comprises a second differential positive-polarity signal which is equal to the second differential negative-polarity signal in size;
and the adder superposes the second differential negative-polarity signal and the signal to be superposed, and the obtained superposed signal is used as the interference signal.
The mobile terminal 600 can implement each process implemented by the mobile terminal in the method embodiments of fig. 1 and fig. 3, and is not described herein again to avoid repetition.
The mobile terminal 600 provided by the embodiment of the present invention can adjust the frequency of the interference signal of the receiver to the frequency of the auditory blind area of the human ear, thereby preventing the user from hearing the current sound generated by the interference signal in the receiver, improving the effect of the mobile terminal on processing the current sound interference of the receiver, and reducing the interference of the current sound.
Fig. 9 is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, where the mobile terminal 900 includes, but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, a processor 910, and a power supply 911. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 9 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 910 is configured to detect an interference signal of the receiver; determining a frequency of the interfering signal; and adjusting the frequency of the interference signal to a target frequency, wherein the target frequency is a preset human ear auditory blind area frequency.
Optionally, the processor 910 performs the adjusting the frequency of the interference signal to a target frequency, including: determining a target module generating the interference signal in the mobile terminal according to the frequency of the interference signal; and adjusting the frequency of the interference signal to a target frequency by adjusting the current working frequency of the target module to the target working frequency.
Optionally, the processor 910 is further configured to detect N first interference signals generated by the N modules in the working state to the receiver, where N is a positive integer; extracting N frequencies from the N first interference signals respectively; establishing an incidence relation between the N modules and the N frequencies;
the processor 910 performs the determining a target module generating the interference signal in the mobile terminal according to the frequency of the interference signal, including: determining a target module associated with the frequency of the interference signal from the association between the N modules and the N frequencies.
Optionally, the mobile terminal 900 further includes: the digital-to-analog conversion module, the receiver driver, the sampling resistor, the amplifier and the adder;
a first output end of the digital-to-analog conversion module is connected with a first input end of the telephone receiver drive, and a second output end of the digital-to-analog conversion module is connected with a second input end of the telephone receiver drive; the first output end of the telephone receiver drive is connected with the first input end of the telephone receiver, and the second output end of the telephone receiver drive is connected with the second input end of the telephone receiver through the sampling resistor; a first input end and a second input end of the amplifier are respectively connected with two ends of the sampling resistor, a first input end of the adder is connected with a first output end of the digital-to-analog conversion module, and a second input end of the adder is connected with an output end of the amplifier;
the processor 910 performs the detecting of the interference signal of the receiver, including:
acquiring a first differential positive polarity signal from a first output end of the digital-to-analog conversion module through the adder;
acquiring a sampling signal from the sampling resistor through the amplifier, and amplifying the sampling signal to obtain a signal to be superimposed, wherein the signal to be superimposed comprises a first differential negative-polarity signal which is equal to the first differential positive-polarity signal in size;
and superposing the first difference positive-polarity signal and the signal to be superposed through the adder, and taking the obtained superposed signal as the interference signal.
Optionally, the mobile terminal 900 further includes: the digital-to-analog conversion module, the receiver driver, the sampling resistor, the amplifier and the adder;
a first output end of the digital-to-analog conversion module is connected with a first input end of the telephone receiver drive, and a second output end of the digital-to-analog conversion module is connected with a second input end of the telephone receiver drive; the first output end of the telephone receiver drive is connected with the first input end of the telephone receiver through the sampling resistor, and the second output end of the telephone receiver drive is connected with the second input end of the telephone receiver; a first input end and a second input end of the amplifier are respectively connected with two ends of the sampling resistor, a first input end of the adder is connected with a second output end of the digital-to-analog conversion module, and a second input end of the adder is connected with an output end of the amplifier;
the processor 910 performs the detecting of the interference signal of the receiver, including:
acquiring a second differential negative-polarity signal from a second output end of the digital-to-analog conversion module through the adder;
acquiring a sampling signal from the sampling resistor through the amplifier, and amplifying the sampling signal to obtain a signal to be superimposed, wherein the signal to be superimposed comprises a second differential positive-polarity signal which is equal to the second differential negative-polarity signal in size;
and superposing the second differential negative-polarity signal and the signal to be superposed through the adder, and taking the obtained superposed signal as the interference signal.
The mobile terminal 900 can implement the processes implemented by the mobile terminal in the foregoing embodiments, and in order to avoid repetition, the details are not described here.
The mobile terminal 900 of the embodiment of the present invention can adjust the frequency of the interference signal of the receiver to the frequency of the auditory blind area of the human ear, thereby preventing the user from hearing the current sound generated by the interference signal in the receiver, improving the effect of the mobile terminal for processing the current sound interference of the receiver, and reducing the interference of the current sound.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 901 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 910; in addition, the uplink data is transmitted to the base station. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 901 can also communicate with a network and other devices through a wireless communication system.
The mobile terminal provides the user with wireless broadband internet access via the network module 902, such as helping the user send and receive e-mails, browse web pages, and access streaming media.
The audio output unit 903 may convert audio data received by the radio frequency unit 901 or the network module 902 or stored in the memory 909 into an audio signal and output as sound. Also, the audio output unit 903 may also provide audio output related to a specific function performed by the mobile terminal 900 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 903 includes a speaker, a buzzer, a receiver, and the like.
The input unit 904 is used to receive audio or video signals. The input Unit 904 may include a Graphics Processing Unit (GPU) 9041 and a microphone 9042, and the Graphics processor 9041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 906. The image frames processed by the graphic processor 9041 may be stored in the memory 909 (or other storage medium) or transmitted via the radio frequency unit 901 or the network module 902. The microphone 9042 can receive sounds and can process such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 901 in case of the phone call mode.
The mobile terminal 900 also includes at least one sensor 905, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 9061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 9061 and/or backlight when the mobile terminal 900 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 905 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described in detail herein.
The display unit 906 is used to display information input by the user or information provided to the user. The Display unit 906 may include a Display panel 9061, and the Display panel 9061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 907 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 9071 (e.g., operations by a user on or near the touch panel 9071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 9071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 910, receives a command from the processor 910, and executes the command. In addition, the touch panel 9071 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 907 may include other input devices 9072 in addition to the touch panel 9071. Specifically, the other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, and the like), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 9071 may be overlaid on the display panel 9061, and when the touch panel 9071 detects a touch operation on or near the touch panel 9071, the touch panel is transmitted to the processor 910 to determine the type of the touch event, and then the processor 910 provides a corresponding visual output on the display panel 9061 according to the type of the touch event. Although in fig. 9, the touch panel 9071 and the display panel 9061 are two independent components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 9071 and the display panel 9061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited herein.
The interface unit 908 is an interface through which an external device is connected to the mobile terminal 900. For example, the external device may include a wired or wireless headset terminal, an external power supply (or battery charger) terminal, a wired or wireless data terminal, a memory card terminal, a terminal for connecting a device having an identification module, an audio input/output (I/O) terminal, a video I/O terminal, an earphone terminal, and the like. The interface unit 908 may be used to receive input from external devices (e.g., data information, power, etc.) and transmit the received input to one or more elements within the mobile terminal 900 or may be used to transmit data between the mobile terminal 900 and external devices.
The memory 909 may be used to store software programs as well as various data. The memory 909 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 909 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 910 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or executing software programs and/or modules stored in the memory 909 and calling data stored in the memory 909, thereby performing overall monitoring of the mobile terminal. Processor 910 may include one or more processing units; preferably, the processor 910 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 910.
The mobile terminal 900 may also include a power supply 911 (e.g., a battery) for powering the various components, and preferably, the power supply 911 is logically connected to the processor 910 through a power management system that provides power management functions to manage charging, discharging, and power consumption.
In addition, the mobile terminal 900 includes some functional modules that are not shown, and thus will not be described in detail herein.
Preferably, an embodiment of the present invention further provides a mobile terminal, including a processor 910, a memory 909, and a computer program stored in the memory 909 and capable of running on the processor 910, where the computer program is executed by the processor 910 to implement each process of the foregoing interference processing method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the foregoing interference processing method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. An interference processing method is applied to a mobile terminal comprising a receiver, and is characterized by comprising the following steps:
detecting an interference signal of the telephone receiver;
determining a frequency of the interfering signal;
adjusting the frequency of the interference signal to a target frequency, wherein the target frequency is a preset human ear auditory blind area frequency;
the adjusting the frequency of the interference signal to a target frequency includes:
determining a target module generating the interference signal in the mobile terminal according to the frequency of the interference signal;
and adjusting the frequency of the interference signal to a target frequency by adjusting the current working frequency of the target module to the target working frequency.
2. The method of claim 1, wherein before detecting the interfering signal of the receiver, the method further comprises:
detecting N first interference signals generated by N modules in a working state on the telephone receiver, wherein N is a positive integer;
extracting N frequencies from the N first interference signals respectively;
establishing an incidence relation between the N modules and the N frequencies;
the determining a target module generating the interference signal in the mobile terminal according to the frequency of the interference signal includes:
determining a target module associated with the frequency of the interference signal from the association between the N modules and the N frequencies.
3. The method according to any of claims 1 to 2, the mobile terminal further comprising: the digital-to-analog conversion module, the receiver driver, the sampling resistor, the amplifier and the adder;
a first output end of the digital-to-analog conversion module is connected with a first input end of the telephone receiver drive, and a second output end of the digital-to-analog conversion module is connected with a second input end of the telephone receiver drive; the first output end of the telephone receiver drive is connected with the first input end of the telephone receiver, and the second output end of the telephone receiver drive is connected with the second input end of the telephone receiver through the sampling resistor; the first input end and the second input end of the amplifier are respectively connected with two ends of the sampling resistor, the first input end of the adder is connected with the first output end of the digital-to-analog conversion module, the second input end of the adder is connected with the output end of the amplifier,
the detecting the interference signal of the receiver comprises:
acquiring a first differential positive polarity signal from a first output end of the digital-to-analog conversion module through the adder;
acquiring a sampling signal from the sampling resistor through the amplifier, and amplifying the sampling signal to obtain a signal to be superimposed, wherein the signal to be superimposed comprises a first differential negative-polarity signal which is equal to the first differential positive-polarity signal in size;
and superposing the first difference positive-polarity signal and the signal to be superposed through the adder, and taking the obtained superposed signal as the interference signal.
4. The method according to any of claims 1 to 2, the mobile terminal further comprising: the digital-to-analog conversion module, the receiver driver, the sampling resistor, the amplifier and the adder;
a first output end of the digital-to-analog conversion module is connected with a first input end of the telephone receiver drive, and a second output end of the digital-to-analog conversion module is connected with a second input end of the telephone receiver drive; the first output end of the telephone receiver drive is connected with the first input end of the telephone receiver through the sampling resistor, and the second output end of the telephone receiver drive is connected with the second input end of the telephone receiver; the first input end and the second input end of the amplifier are respectively connected with two ends of the sampling resistor, the first input end of the adder is connected with the second output end of the digital-to-analog conversion module, the second input end of the adder is connected with the output end of the amplifier,
the detecting the interference signal of the receiver comprises:
acquiring a second differential negative-polarity signal from a second output end of the digital-to-analog conversion module through the adder;
acquiring a sampling signal from the sampling resistor through the amplifier, and amplifying the sampling signal to obtain a signal to be superimposed, wherein the signal to be superimposed comprises a second differential positive-polarity signal which is equal to the second differential negative-polarity signal in size;
and superposing the second differential negative-polarity signal and the signal to be superposed through the adder, and taking the obtained superposed signal as the interference signal.
5. A mobile terminal comprises a receiver and is characterized by further comprising:
the detection module is used for detecting an interference signal of the telephone receiver;
a determining module for determining a frequency of the interfering signal;
the adjusting module is used for adjusting the frequency of the interference signal to a target frequency, and the target frequency is a preset human ear auditory blind area frequency;
the adjustment module includes:
the determining submodule is used for determining a target module generating the interference signal in the mobile terminal according to the frequency of the interference signal;
and the adjusting submodule is used for adjusting the frequency of the interference signal to a target frequency by adjusting the current working frequency of the target module to the target working frequency.
6. The mobile terminal of claim 5, wherein the detecting module is further configured to detect N first interference signals generated by the N modules in an operating state to the receiver, where N is a positive integer;
the mobile terminal further includes:
an extracting module, configured to extract N frequencies from the N first interference signals, respectively;
the establishing module is used for establishing the incidence relation between the N modules and the N frequencies;
the determining sub-module is further configured to determine a target module associated with the frequency of the interference signal from the association relationship between the N modules and the N frequencies.
7. The mobile terminal of any of claims 5 to 6, the detection module comprising: the digital-to-analog conversion module, the receiver driver, the sampling resistor, the amplifier and the adder;
a first output end of the digital-to-analog conversion module is connected with a first input end of the telephone receiver drive, and a second output end of the digital-to-analog conversion module is connected with a second input end of the telephone receiver drive; the first output end of the telephone receiver drive is connected with the first input end of the telephone receiver, and the second output end of the telephone receiver drive is connected with the second input end of the telephone receiver through the sampling resistor; the first input end and the second input end of the amplifier are respectively connected with two ends of the sampling resistor, the first input end of the adder is connected with the first output end of the digital-to-analog conversion module, the second input end of the adder is connected with the output end of the amplifier,
the adder obtains a first differential positive-polarity signal from a first output end of the digital-to-analog conversion module;
the amplifier acquires a sampling signal from the sampling resistor and amplifies the sampling signal to obtain a signal to be superimposed, wherein the signal to be superimposed comprises a first differential negative-polarity signal which is equal to the first differential positive-polarity signal in size;
and the adder superposes the first difference positive-polarity signal and the signal to be superposed, and the obtained superposed signal is used as the interference signal.
8. The mobile terminal of any of claims 5 to 6, the detection module comprising: the digital-to-analog conversion module, the receiver driver, the sampling resistor, the amplifier and the adder;
a first output end of the digital-to-analog conversion module is connected with a first input end of the telephone receiver drive, and a second output end of the digital-to-analog conversion module is connected with a second input end of the telephone receiver drive; the first output end of the telephone receiver drive is connected with the first input end of the telephone receiver through the sampling resistor, and the second output end of the telephone receiver drive is connected with the second input end of the telephone receiver; the first input end and the second input end of the amplifier are respectively connected with two ends of the sampling resistor, the first input end of the adder is connected with the second output end of the digital-to-analog conversion module, the second input end of the adder is connected with the output end of the amplifier,
the adder obtains a second differential negative-polarity signal from a second output end of the digital-to-analog conversion module;
the amplifier acquires a sampling signal from the sampling resistor and amplifies the sampling signal to obtain a signal to be superposed, wherein the signal to be superposed comprises a second differential positive-polarity signal which is equal to the second differential negative-polarity signal in size;
and the adder superposes the second differential negative-polarity signal and the signal to be superposed, and the obtained superposed signal is used as the interference signal.
9. A mobile terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, implements the steps of the interference processing method according to any one of claims 1 to 4.
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| CN111585931B (en) * | 2020-03-25 | 2021-06-29 | 北京理工大学 | Single-carrier MMSE frequency domain equalization method, receiver and transmitter |
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| CN103236821A (en) * | 2013-04-26 | 2013-08-07 | 中国科学技术大学 | Adjustable negative resistance structure-based multimode multi-channel mixer |
| CN105763267A (en) * | 2016-04-01 | 2016-07-13 | 南京紫米网络科技有限公司 | Shaking noise automatic eliminating system used for near-field communication and application method |
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