CN113395381A - Method and system for preventing mobile phone from being controlled in non-call state - Google Patents
Method and system for preventing mobile phone from being controlled in non-call state Download PDFInfo
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- CN113395381A CN113395381A CN202110553520.5A CN202110553520A CN113395381A CN 113395381 A CN113395381 A CN 113395381A CN 202110553520 A CN202110553520 A CN 202110553520A CN 113395381 A CN113395381 A CN 113395381A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/68—Circuit arrangements for preventing eavesdropping
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72463—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions to restrict the functionality of the device
Abstract
The invention discloses a method and a system for preventing a mobile phone from being controlled in a non-call state, wherein the method comprises the following steps: microphone, power amplifier circuit, manual switch, analog-to-digital circuit, signal processing circuit. The microphone converts sound into an analog electric signal, the analog electric signal is transmitted to the power amplification circuit through the signal wire and amplified, then the signal wire is transmitted to the analog-to-digital circuit for discrete sampling and conversion into a digital signal, and the digital signal is transmitted to the signal processing circuit through the bus to carry out operations such as coding, compression, modulation and the like, so that a baseband signal is provided for the subsequent mobile phone to realize wireless communication transmission. The manual switch is connected in series to a signal line or bus between the microphone and the signal processing circuit. In a non-call state, the manual switch is manually disconnected, so that audio signals from the microphone cannot enter the signal processing circuit, viruses, Trojan horse software or malicious software are physically and completely prevented from stealing audio information from the signal processing circuit, and compared with other known solutions, the method is simple to implement, low in cost and more effective.
Description
Technical Field
The invention belongs to the technical field of information security, and relates to a method and a system for preventing a mobile phone from being controlled in a non-call state.
Background
The smart phone is deeply integrated into aspects of production, operation, life, social contact and the like of modern people, and becomes an essential communication, leisure and entertainment tool for people to carry. While bringing much fun and convenience to people, smart phones are also very easy to be utilized by lawless persons, and are used for stealing personal privacy and stealing national/business secrets. The most commonly used means of lawbreakers is to acquire the recording authority of the smart phone through various viruses, read the digital audio signal in the signal processing circuit, change the microphone of the smart phone into an eavesdropper, record the conversation and background sound of surrounding personnel at any time, acquire sensitive information, seriously infringe personal privacy and even seriously damage the national benefits. When the mobile phone is in normal conversation, people can also carefully avoid the sensitive information, but in daily life, the mobile phone is almost around every moment, and people can hardly care for taking care of the mobile phone around every moment. For example, many people around us have been experienced that a user just chats with a nearby friend to like a certain commodity, and the user can push corresponding commodity information to the user after finding some software after turning on a mobile phone, so that the extreme coincidence enables the user not to be suspicious of monitoring.
In order to avoid the situation that the mobile phone recording right is controlled by others to cause secret leakage, the mobile phone antivirus software is installed to prevent unauthorized software from illegally acquiring the recording right of the smart phone, but the method only deals with conventional viruses and has certain hysteresis, and some purposely designed viruses/rogue software cannot be timely and effectively identified and eliminated by the mobile phone antivirus software. The market also develops a special mobile phone interference box for preventing eavesdropping, a mobile phone is placed in the mobile phone interference box when the mobile phone does not make a call, and a device capable of releasing ultrasonic waves or other acoustic interference is arranged in the mobile phone interference box, so that various peripheral sounds can be submerged in released noise, and a microphone of the mobile phone can only acquire an audio signal doped with strong noise. The mode plays a certain role in preventing the mobile phone from being used for eavesdropping in a non-call state, but on one hand, people cannot always carry a mobile phone interference box; furthermore, with digital signal noise reduction filtering techniques, the possibility still exists to extract significant information from the noise. The hidden danger that the mobile phone becomes the eavesdropper can not be effectively solved for a long time, people are forced to choose not to carry the mobile phone or turn off the mobile phone in sensitive occasions, and the normal life is seriously influenced because the family life needs to constantly prevent the speech from being eavesdropped.
Patent document No. CN206181163U discloses a mobile phone with physical eavesdropping and stealing prevention function, which includes a mobile phone and a voice control module, where the voice control module includes a microphone, a processor, and a dc power supply module, the dc power supply module is connected to the processor and the microphone respectively, and the dc power supply module is connected to a power supply of the mobile phone through a physical switch; the physical switch is a push switch, a plug-in switch or a sliding switch; the physical switch can be used as a control condition for connecting the telephone. According to the scheme, the on-off state of the current between the mobile phone power supply and the direct current power supply module is controlled through the physical switch, so that whether the microphone is powered on or not is controlled, and the control condition of switching on the telephone is realized. This solution is feasible in principle, but there are some problems in implementation: firstly, the integration level of the mobile phone is higher and higher, and in order to ensure the lightweight and compact structure of the mobile phone, the function integration design is required, one direct current power supply module supplies power for various devices, for example, a receiver, a camera, a mixing circuit, a signal processing circuit and the like need to be supplied with power at the same time, and at the moment, the physical switch is used for controlling the direct current power supply module to supply power, so that other devices on the mobile phone cannot work normally; if the direct current power supply module is configured for the microphone independently, the problems of cost, volume, power consumption, heat productivity increase and the like are caused. Secondly, in order to realize the design of the scheme and not influence the normal work of other devices on the mobile phone, a direct current power supply module needs to be configured for the microphone independently, a mobile phone circuit needs to be newly designed aiming at power consumption, electromagnetic compatibility, thermal stability and the like caused by the increase of the direct current power supply module, and the complexity, the workload and the cost of the realization are increased. Moreover, the direct-current power supply module is connected with a mobile phone power supply through a physical switch, and the on-off of the physical switch can cause transient current and voltage fluctuation, so that on one hand, the stability of the mobile phone power supply can be adversely affected, and other equipment can work abnormally; on the other hand, transient current and voltage fluctuation can also impact the electronic equipment on the mobile phone, which may cause the reduction of the service life of the electronic equipment on the mobile phone. In addition, according to the patent document requirement of CN206181163U, a path of power-on state signal needs to be added to the dc power module and provided to the processor, which will also provide a modification requirement for the hardware of the mobile phone circuit and the mobile phone processor, thereby increasing the modification cost and the technical risk.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a method and a system for preventing a mobile phone from being controlled in a non-call state, and solves the problems of how to safely and effectively avoid viruses, trojan horse software or malicious software invading the mobile phone to acquire the recording authority of the smart phone, log in surrounding personnel conversation and background sound data, infringe personal privacy and steal national secrets and business secrets.
In view of the above, the invention adopts the following technical scheme: a method for preventing a mobile phone from being operated in a non-call state is characterized by comprising the following steps:
generating an audio signal from a handset microphone;
selecting a manual switch to control the audio signal by using a data signal transmission path, and placing the manual switch at a closed position to be communicated with the data signal transmission path when a mobile phone is used for communication, so that the audio signal normally enters a signal processing circuit; when the mobile phone is not used for communication, the manual switch is placed at a disconnection position to cut off a data signal transmission path, so that the audio signal cannot enter the signal processing circuit.
Further, the data signal transmission path includes: the microphone, power amplifier circuit is connected to the microphone, power amplifier circuit connects hand switch, hand switch connects the analog to digital circuit, analog to digital circuit connects signal processing circuit.
Further, when a mobile phone is used for conversation, the manual switch is placed in a closed position to be communicated with the data signal transmission path, and the method comprises the following steps:
the manual switch is manually closed by a caller, an analog signal output by the microphone sequentially passes through the power amplifying circuit, the manual switch and the analog-to-digital circuit, enters the signal processing circuit, is subsequently modulated, subjected to frequency conversion operation and transferred by the base station, and then is sent to the receiver.
Further, when the mobile phone is not used for communication, the manual switch is placed at the disconnection position to cut off the data signal transmission path, and the method comprises the following steps:
the user manually cuts off the manual switch, and the analog signal output by the microphone is amplified by the power amplifying circuit and then cannot be transmitted backwards by the manual switch, so that viruses, trojan horse software or malicious software cannot obtain effective audio information in a signal processing circuit behind the microphone.
Further, the data signal transmission path includes: the microphone, power amplifier circuit is connected to the microphone, power amplifier circuit connects the analog-to-digital circuit, analog-to-digital circuit connects manual switch, manual switch connects signal processing circuit.
Further, when a mobile phone is used for conversation, the manual switch is placed in a closed position to be communicated with the data signal transmission path, and the method comprises the following steps:
the manual switch is manually closed by the caller, the analog signal output by the microphone sequentially passes through the power amplifying circuit 2, the analog-to-digital circuit and the manual switch, enters the signal processing circuit, and is subsequently transmitted to the receiver after modulation, frequency conversion operation and base station transfer.
Further, when the mobile phone is not used for communication, the manual switch is placed at the disconnection position to cut off the data signal transmission path, and the method comprises the following steps:
the user manually cuts off the manual switch, and the analog signal output by the microphone is transmitted backwards only after passing through the power amplifying circuit and the analog-to-digital circuit, so that viruses, trojan software or malicious software cannot obtain effective audio information in a signal processing circuit behind the manual switch.
Further, the signal processing circuit is an independent function circuit or a multifunctional integrated circuit.
Another object of the present invention is to provide a system for preventing a mobile phone from being manipulated in a non-call state, comprising:
the acquisition unit is used for generating an audio signal from a microphone of the mobile phone;
the control unit is used for selecting a manual switch to control the audio signal by using a data signal transmission path, and when a mobile phone is used for communication, the manual switch is placed at a closed position to be communicated with the data signal transmission path, so that the audio signal normally enters the signal processing circuit; when the mobile phone is not used for communication, the manual switch is placed at a disconnection position to cut off a data signal transmission path, so that the audio signal cannot enter the signal processing circuit.
Further, the data signal transmission path includes: the microphone, the power amplifying circuit, the manual switch and the analog-to-digital circuit; wherein the content of the first and second substances,
the microphone is connected with a power amplifying circuit, the power amplifying circuit is connected with a manual switch, the manual switch is connected with an analog-to-digital circuit, and the analog-to-digital circuit is connected with the signal processing circuit; alternatively, the first and second electrodes may be,
the microphone is connected with a power amplifying circuit, the power amplifying circuit is connected with an analog-to-digital circuit, the analog-to-digital circuit is connected with a manual switch, and the manual switch is connected with the signal processing circuit.
The invention achieves the following significant beneficial effects:
the realization is simple, include: generating an audio signal from a handset microphone; selecting a manual switch to control the audio signal by using a data signal transmission path, and placing the manual switch at a closed position to be communicated with the data signal transmission path when a mobile phone is used for communication, so that the audio signal normally enters a signal processing circuit; when the mobile phone is not used for communication, the manual switch is placed at a disconnection position to cut off a data signal transmission path, so that the audio signal cannot enter the signal processing circuit. Before the audio signal from the mobile phone microphone enters the signal processing circuit, a manual switch capable of manual intervention is connected in series, and when the mobile phone is used for communication, the manual switch is in a closed position, so that the audio signal from the mobile phone microphone can normally enter the signal processing circuit; when the mobile phone is not used for communication, the manual switch can be placed at the off position, and the audio signal from the microphone of the mobile phone cannot enter the signal processing circuit. The mobile phone is normally self-checked, the safety is higher, and the design scheme completely physically avoids the possibility that viruses, Trojan horse software or malicious software are intercepted in the non-call state of the mobile phone. Compared with other known solutions, the manual switch can be manually switched on and off outside the mobile phone, so as to allow or forbid obtaining of peripheral sound information, and compared with the method that the mobile phone is placed in a special mobile phone cabinet, a battery is taken out when the mobile phone is turned off or the mobile phone is placed in a special sound interference device, the use is more convenient and economical. Compared with the implementation scheme of controlling the power supply of the microphone by using a physical switch, the scheme only needs to serially connect a manual switch on a signal line or a bus of equipment and devices between the microphone and the signal processing circuit, does not need to increase an independent direct-current power supply module, does not need to greatly change the original circuit of the mobile phone, and is simple to implement and low in cost; and because the current and the voltage of the signal line and the bus are much smaller than those of the power supply circuit of the mobile phone power supply, the transient impact of the current and the voltage caused by the manual on-off and on-off of the switch has relatively small influence on the mobile phone power supply, and has smaller influence on the normal work of other equipment connected on the mobile phone.
Drawings
Fig. 1 is a flowchart of a method for preventing a mobile phone from being manipulated in a non-call state according to the present invention;
fig. 2 is a schematic diagram of a first embodiment of a data signal transmission path of the method for preventing a mobile phone from being manipulated in a non-call state according to the present invention;
fig. 3 is a schematic diagram of a data signal transmission path according to a second embodiment of the method for preventing a mobile phone from being manipulated in a non-call state.
Schematic of the reference numerals
1-microphone 2-power amplifying circuit 3-manual switch 4-analog to digital circuit
5-Signal processing Circuit
Detailed Description
The advantages and features of the present invention will become more fully apparent from the following description and appended claims, taken in conjunction with the accompanying drawings and detailed description of specific embodiments of the invention. It is to be noted that the drawings are in a very simplified form and are not to scale, which is intended merely for convenience and clarity in describing embodiments of the invention.
It should be noted that, for clarity of description of the present invention, various embodiments are specifically described to further illustrate different implementations of the present invention, wherein the embodiments are illustrative and not exhaustive. In addition, for simplicity of description, the contents mentioned in the previous embodiments are often omitted in the following embodiments, and therefore, the contents not mentioned in the following embodiments may be referred to the previous embodiments accordingly.
While the invention is amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood that the inventors do not intend to limit the invention to the particular embodiments described, but intend to protect all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the claims. The same component numbers may be used throughout the drawings to refer to the same or like parts.
Referring to fig. 1, a method for preventing a mobile phone from being operated in a non-call state according to the present invention includes:
step S101, generating an audio signal from a microphone of a mobile phone;
step S102, selecting a manual switch to control the audio signal by using a data signal transmission path, and placing the manual switch at a closed position to be communicated with the data signal transmission path when a mobile phone is used for communication, so that the audio signal normally enters a signal processing circuit; when the mobile phone is not used for communication, the manual switch is placed at a disconnection position to cut off a data signal transmission path, so that the audio signal cannot enter the signal processing circuit.
In one embodiment of the present application, specifically, the data signal transmission path includes: the microphone, power amplifier circuit is connected to the microphone, power amplifier circuit connects hand switch, hand switch connects the analog to digital circuit, analog to digital circuit connects signal processing circuit.
In an embodiment of the present application, specifically, when a mobile phone is used for a call, placing the manual switch in a closed position to connect the data signal transmission path includes:
the manual switch is manually closed by a caller, an analog signal output by the microphone sequentially passes through the power amplifying circuit, the manual switch and the analog-to-digital circuit, enters the signal processing circuit, is subsequently modulated, subjected to frequency conversion operation and transferred by the base station, and then is sent to the receiver.
In an embodiment of the present application, specifically, when a mobile phone is not used for a call, placing the manual switch in the off position to cut off the data signal transmission path includes:
the user manually cuts off the manual switch, and the analog signal output by the microphone is amplified by the power amplifying circuit and then cannot be transmitted backwards by the manual switch, so that viruses, trojan horse software or malicious software cannot obtain effective audio information in a signal processing circuit behind the microphone.
In one embodiment of the present application, specifically, the data signal transmission path includes: the microphone, power amplifier circuit is connected to the microphone, power amplifier circuit connects the analog-to-digital circuit, analog-to-digital circuit connects manual switch, manual switch connects signal processing circuit.
In an embodiment of the present application, specifically, when a mobile phone is used for a call, placing the manual switch in a closed position to connect the data signal transmission path includes:
the manual switch is manually closed by the caller, the analog signal output by the microphone sequentially passes through the power amplifying circuit 2, the analog-to-digital circuit and the manual switch, enters the signal processing circuit, and is subsequently transmitted to the receiver after modulation, frequency conversion operation and base station transfer.
In an embodiment of the present application, specifically, when a mobile phone is not used for a call, placing the manual switch in the off position to cut off the data signal transmission path includes:
the user manually cuts off the manual switch, and the analog signal output by the microphone is transmitted backwards only after passing through the power amplifying circuit and the analog-to-digital circuit, so that viruses, trojan software or malicious software cannot obtain effective audio information in a signal processing circuit behind the manual switch.
In one embodiment of the present application, the signal processing circuit is, in particular, a stand-alone functional circuit or a multifunctional integrated circuit.
Another object of the present invention is to provide a system for preventing a mobile phone from being manipulated in a non-call state, comprising:
the acquisition unit is used for generating an audio signal from a microphone of the mobile phone;
the control unit is used for selecting a manual switch to control the audio signal by using a data signal transmission path, and when a mobile phone is used for communication, the manual switch is placed at a closed position to be communicated with the data signal transmission path, so that the audio signal normally enters the signal processing circuit; when the mobile phone is not used for communication, the manual switch is placed at a disconnection position to cut off a data signal transmission path, so that the audio signal cannot enter the signal processing circuit.
In one embodiment of the present application, specifically, the data signal transmission path includes: the microphone, the power amplifying circuit, the manual switch and the analog-to-digital circuit; wherein the content of the first and second substances,
the microphone is connected with a power amplifying circuit, the power amplifying circuit is connected with a manual switch, the manual switch is connected with an analog-to-digital circuit, and the analog-to-digital circuit is connected with the signal processing circuit; alternatively, the first and second electrodes may be,
the microphone is connected with a power amplifying circuit, the power amplifying circuit is connected with an analog-to-digital circuit, the analog-to-digital circuit is connected with a manual switch, and the manual switch is connected with the signal processing circuit.
The embodiment of the present application further provides a system for preventing a mobile phone from being controlled in a non-call state, and it should be noted that the apparatus for preventing a mobile phone from being controlled in a non-call state according to the embodiment of the present application may be used to execute the method for preventing a mobile phone from being controlled in a non-call state according to the embodiment of the present application. The following describes a device for preventing a mobile phone from being operated in a non-call state according to an embodiment of the present application.
Referring to fig. 2, a data signal transmission path of a method for preventing a mobile phone from being controlled in a non-call state according to the present invention includes: the microphone comprises a microphone 1, a power amplifying circuit 2, a manual switch 3, an analog-to-digital circuit 4 and a signal processing circuit 5, wherein the microphone 1 converts sound into an analog electric signal; the power amplifying circuit 2 is connected with the microphone 1 through a signal line and is used for amplifying the received analog electric signal; the analog-to-digital conversion circuit 4 is connected with the power amplification circuit 2 through a signal wire and is used for performing discrete sampling on the amplified analog electric signal and converting the analog electric signal into a digital signal; the manual switch 3 is connected in series with a signal line between the analog-to-digital circuit 4 and the power amplification circuit 2 and is used for controlling whether the analog signal after power amplification enters the analog-to-digital circuit 4; the signal processing circuit 5 is connected with the analog-to-digital circuit 4 by a bus, and is used for performing compression coding, local application and storage on the received digital signal, or performing encryption, interleaving, recombination, channel coding, voice coding, modulation and other processing, and providing a baseband signal for the subsequent wireless communication transmission of the mobile phone. The manual switch 3 can be used for manually switching on and off states outside the mobile phone. The microphone 1, the power amplifying circuit 2, the analog-to-digital conversion circuit 4 and the signal processing circuit 5 are installed in the mobile phone, can exist as independent functional circuits, and can be integrated in a multifunctional mode, integrated in a chip mode or further split into more detailed circuits, and at the moment, the installation position of the manual switch 3 needs to be ensured to control whether signals are transmitted to the signal processing circuit 5 or not. The signal processing circuit 5 is a general name of a circuit for registering, storing and processing digital signals.
When the mobile phone is in a call, a caller manually closes the manual switch 3, an analog signal output by the microphone 1 sequentially passes through the power amplifying circuit 2, the manual switch 3 and the analog-to-digital circuit 4, enters the signal processing circuit 5, and is subsequently transmitted to the receiver after modulation, frequency conversion and other operations and base station transfer. When the mobile phone is in a non-call state, a user manually turns off the manual switch 3, and an analog signal output by the microphone 1 is amplified by the power amplification circuit 2 and then stops at the manual switch 3 and cannot be transmitted backwards, so that viruses, trojan software or malicious software cannot obtain effective audio information in the signal processing circuit 5 behind, and the function of eavesdropping prevention is realized.
Referring to fig. 3, a data signal transmission path of the method for preventing a mobile phone from being controlled in a non-call state of the present invention includes: the microphone comprises a microphone 1, a power amplifying circuit 2, a manual switch 3, an analog-to-digital circuit 4 and a signal processing circuit 5, wherein the microphone 1 converts sound into an analog electric signal; the power amplifying circuit 2 is connected with the microphone 1 through a signal line and is used for amplifying the received analog electric signal; the analog-to-digital conversion circuit 4 is connected with the power amplification circuit 2 through a signal wire and is used for performing discrete sampling on the amplified analog electric signal and converting the analog electric signal into a digital signal; the signal processing circuit 5 is connected with the analog-to-digital circuit 4 through a bus, and is used for performing compression coding, local application and storage on the received digital signal, or performing encryption, interleaving, recombination, channel coding, voice coding, modulation and other processing on the received digital signal, and providing a baseband signal for the subsequent wireless communication transmission of the mobile phone; the manual switch 3 is connected in series to a bus between the signal processing circuit 5 and the analog-to-digital conversion circuit 4, and is used for controlling whether the digital signal after discrete sampling enters the signal processing circuit 5. The manual switch 3 can be used for manually switching on and off states outside the mobile phone. The microphone 1, the power amplifying circuit 2, the analog-to-digital conversion circuit 4 and the signal processing circuit 5 are installed in the mobile phone, can exist as independent functional circuits, and can be integrated in a multifunctional mode, integrated in a chip mode or further split into more detailed circuits, and at the moment, the installation position of the manual switch 3 needs to be ensured to control whether signals are transmitted to the signal processing circuit 5 or not. The signal processing circuit 5 is a general name of a circuit for registering, storing and processing digital signals.
When the mobile phone is in a call, a caller manually closes the manual switch 3, an analog signal output by the microphone 1 sequentially passes through the power amplifying circuit 2, the analog-to-digital circuit 4 and the manual switch 3, enters the signal processing circuit 5, and is subsequently transmitted to the receiver after modulation, frequency conversion and other operations and base station transfer. When the mobile phone is in a non-call state, a user manually disconnects the manual switch 3, and after an analog signal output by the microphone 1 passes through the power amplification circuit 2 and the analog-to-digital circuit 4, the analog signal cannot be transmitted backwards through the manual switch 3, so that viruses, trojan horse software or malicious software cannot obtain effective audio information in the signal processing circuit 5 behind the manual switch, and the anti-eavesdropping function is realized.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
the realization is simple, include: generating an audio signal from a handset microphone; selecting a manual switch to control the audio signal by using a data signal transmission path, and placing the manual switch at a closed position to be communicated with the data signal transmission path when a mobile phone is used for communication, so that the audio signal normally enters a signal processing circuit; when the mobile phone is not used for communication, the manual switch is placed at a disconnection position to cut off a data signal transmission path, so that the audio signal cannot enter the signal processing circuit. Before the audio signal from the mobile phone microphone enters the signal processing circuit, a manual switch capable of manual intervention is connected in series, and when the mobile phone is used for communication, the manual switch is in a closed position, so that the audio signal from the mobile phone microphone can normally enter the signal processing circuit; when the mobile phone is not used for communication, the manual switch can be placed at the off position, and the audio signal from the microphone of the mobile phone cannot enter the signal processing circuit. The mobile phone is normally self-checked, the safety is higher, and the design scheme completely physically avoids the possibility that viruses, Trojan horse software or malicious software are intercepted in the non-call state of the mobile phone. Compared with other known solutions, the manual switch can be manually switched on and off outside the mobile phone, so as to allow or forbid obtaining of peripheral sound information, and compared with the method that the mobile phone is placed in a special mobile phone cabinet, a battery is taken out when the mobile phone is turned off or the mobile phone is placed in a special sound interference device, the use is more convenient and economical. Compared with the implementation scheme of controlling the power supply of the microphone by using a physical switch, the scheme only needs to serially connect a manual switch on a signal line or a bus of equipment and devices between the microphone and the signal processing circuit, does not need to increase an independent direct-current power supply module, does not need to greatly change the original circuit of the mobile phone, and is simple to implement and low in cost; and because the current and the voltage of the signal line and the bus are much smaller than those of the power supply circuit of the mobile phone power supply, the transient impact of the current and the voltage caused by the manual on-off and on-off of the switch has relatively small influence on the mobile phone power supply, and the transient impact has smaller influence on the normal work of other equipment connected to the mobile phone power supply.
Any other suitable modifications can be made according to the technical scheme and the conception of the invention. All such alternatives, modifications and improvements as would be obvious to one skilled in the art are intended to be included within the scope of the invention as defined by the appended claims.
Claims (10)
1. A method for preventing a mobile phone from being operated in a non-call state is characterized by comprising the following steps:
generating an audio signal from a handset microphone;
selecting a manual switch to control the audio signal by using a data signal transmission path, and placing the manual switch at a closed position to be communicated with the data signal transmission path when a mobile phone is used for communication, so that the audio signal normally enters a signal processing circuit; when the mobile phone is not used for communication, the manual switch is placed at a disconnection position to cut off a data signal transmission path, so that the audio signal cannot enter the signal processing circuit.
2. The method for preventing a handset from being manipulated in a non-call state according to claim 1, wherein the data signal transmission path comprises: the microphone, power amplifier circuit is connected to the microphone, power amplifier circuit connects hand switch, hand switch connects the analog to digital circuit, analog to digital circuit connects signal processing circuit.
3. The method for preventing the mobile phone from being manipulated in the non-call state according to claim 2, wherein placing the manual switch in the closed position to connect the data signal transmission path when the mobile phone is used for a call comprises:
the manual switch is manually closed by a caller, an analog signal output by the microphone enters the signal processing circuit through the power amplifying circuit, the manual switch and the analog-to-digital circuit, and is subsequently modulated, frequency-converted, transmitted and transferred by the base station and then sent to the receiver.
4. The method for preventing the mobile phone from being operated in the non-call state according to claim 2, wherein placing the manual switch in the off position to cut off the data signal transmission path when the mobile phone is not used for a call comprises:
the user manually cuts off the manual switch, and the analog signal output by the microphone is amplified by the power amplifying circuit and then cannot be transmitted backwards by the manual switch, so that viruses, trojan horse software or malicious software cannot obtain effective audio information in a signal processing circuit behind the microphone.
5. The method for preventing a handset from being manipulated in a non-call state according to claim 1, wherein the data signal transmission path comprises: the microphone, power amplifier circuit is connected to the microphone, power amplifier circuit connects the analog-to-digital circuit, analog-to-digital circuit connects manual switch, manual switch connects signal processing circuit.
6. The method for preventing the mobile phone from being manipulated in the non-call state according to claim 5, wherein the step of connecting the data signal transmission path with the manual switch in the closed position when the mobile phone is used for a call comprises:
the manual switch is manually closed by a caller, an analog signal output by the microphone sequentially passes through the power amplifying circuit, the analog-to-digital circuit and the manual switch, enters the signal processing circuit, and is subsequently modulated, frequency-converted, transmitted and transferred by the base station and then is sent to the receiver.
7. The method for preventing the mobile phone from being operated in the non-call state according to claim 5, wherein when the mobile phone is not used for calling, the manual switch is placed in the off position to cut off the data signal transmission path, comprising:
the user manually cuts off the manual switch, and the analog signal output by the microphone is transmitted backwards only after passing through the power amplifying circuit and the analog-to-digital circuit, so that viruses, trojan software or malicious software cannot obtain effective audio information in a signal processing circuit behind the manual switch.
8. The method as claimed in claim 1, wherein the signal processing circuit is a stand-alone functional circuit or a multifunctional integrated circuit.
9. A system for preventing a mobile phone from being manipulated in a non-call state, comprising:
the acquisition unit is used for generating an audio signal from a microphone of the mobile phone;
the control unit is used for selecting a manual switch to control the audio signal by using a data signal transmission path, and when a mobile phone is used for communication, the manual switch is placed at a closed position to be communicated with the data signal transmission path, so that the audio signal normally enters the signal processing circuit; when the mobile phone is not used for communication, the manual switch is placed at a disconnection position to cut off a data signal transmission path, so that the audio signal cannot enter the signal processing circuit.
10. The system for preventing a handset from being manipulated in a non-call state according to claim 9, wherein the data signal transmission path comprises: the microphone, the power amplifying circuit, the manual switch and the analog-to-digital circuit; wherein the content of the first and second substances,
the microphone is connected with a power amplifying circuit, the power amplifying circuit is connected with a manual switch, the manual switch is connected with an analog-to-digital circuit, and the analog-to-digital circuit is connected with the signal processing circuit; alternatively, the first and second electrodes may be,
the microphone is connected with a power amplifying circuit, the power amplifying circuit is connected with an analog-to-digital circuit, the analog-to-digital circuit is connected with a manual switch, and the manual switch is connected with the signal processing circuit.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536912A (en) * | 2003-04-06 | 2004-10-13 | 梁闽海 | Method for preventing mobile communication equipment from being remote controlled and become into wiretapper and its device |
| CN101127985A (en) * | 2007-09-21 | 2008-02-20 | 秦建忠 | Leakage prevention device for mobile phone |
| CN102868807A (en) * | 2012-08-24 | 2013-01-09 | 兴唐通信科技有限公司 | Method for limiting work of peripheral of mobile terminal |
| US20180213404A1 (en) * | 2015-07-21 | 2018-07-26 | Taek Jin Kim | Terminal having security function |
| US20180246832A1 (en) * | 2017-02-24 | 2018-08-30 | Dark Matter L.L.C. | Peripheral disconnection switch system and method |
| CN210041896U (en) * | 2019-08-09 | 2020-02-07 | 赵成 | Smart phone with anti-eavesdrop and anti-candid photograph functions |
-
2021
- 2021-05-20 CN CN202110553520.5A patent/CN113395381A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536912A (en) * | 2003-04-06 | 2004-10-13 | 梁闽海 | Method for preventing mobile communication equipment from being remote controlled and become into wiretapper and its device |
| CN101127985A (en) * | 2007-09-21 | 2008-02-20 | 秦建忠 | Leakage prevention device for mobile phone |
| CN102868807A (en) * | 2012-08-24 | 2013-01-09 | 兴唐通信科技有限公司 | Method for limiting work of peripheral of mobile terminal |
| US20180213404A1 (en) * | 2015-07-21 | 2018-07-26 | Taek Jin Kim | Terminal having security function |
| US20180246832A1 (en) * | 2017-02-24 | 2018-08-30 | Dark Matter L.L.C. | Peripheral disconnection switch system and method |
| CN210041896U (en) * | 2019-08-09 | 2020-02-07 | 赵成 | Smart phone with anti-eavesdrop and anti-candid photograph functions |
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