WO2011150875A1

WO2011150875A1 - Device in mobile communication equipment and mobile communication equipment thereof

Info

Publication number: WO2011150875A1
Application number: PCT/CN2011/075729
Authority: WO
Inventors: 康俊腾
Original assignee: 华为终端有限公司
Priority date: 2011-06-14
Filing date: 2011-06-14
Publication date: 2011-12-08
Also published as: CN102960047A

Abstract

A device in a mobile communication equipment is disclosed in the present invention, which includes: a switch device, which is connected between a microphone and a processing device, and a switch driving device, which is used to drive the said switch device to connect or cut the physical link between the microphone and the processing device according to the using state of an operation key. When the microphone is connected with the processing device, the processing device amplifies the signal, which is output from the microphone, through an amplifying circuit. A mobile communication equipment is also disclosed, which includes: a microphone, a processing device and the said device in the mobile communication equipment, which is connected between the microphone and the processing device.

Description

Device and mobile communication device in mobile communication device

The present invention belongs to the field of communication devices, and in particular, to a device and a mobile communication device in a mobile communication device.

BACKGROUND OF THE INVENTION Mobile communication devices, such as mobile phones, have become a must-have tool for people today. The most basic function of a mobile communication device is to implement a call function. After one party establishes voice communication with the other party through the mobile communication device, the voice of the party holding the mobile communication device is collected by the microphone on the mobile communication device, and input into the processing device of the mobile communication device, and finally through communication. The link is transmitted to the handset of the other party's communication device. Under normal circumstances, the user only controls the voice signal collected by the processing device in the mobile communication device to process the voice signal collected by the microphone in the process of talking with the other party, and in the non-talk state, the software controls the processing device. The speech signal collected by the microphone is not processed. With the improvement of the design level of mobile phones, the trend of smart phones is obvious, and the systems in mobile phones are increasingly using operating systems. Correspondingly, there are more and more mobile phone Trojans, including Trojans for monitoring purposes. This type of Trojan program allows the user to control the access of the processing device in the mobile phone to the microphone, monitor the user's voice, and control the content to be monitored to be sent to the listener via the communication link without knowing the software. . It can be seen that the trojan program in the prior art can control the communication of the microphone and the processing device communication link in the mobile phone through the software, and it is easy to make the mobile phone become the monitoring tool of others. In order to prevent this Trojan horse program, people usually scan and monitor the Trojan horse program by installing mobile phone anti-virus software in the mobile phone, but the mobile phone anti-virus software is still a protection mechanism at the software level, anti-virus software. The loopholes in itself may still cause Trojan horses to be missed, so the problem of eavesdropping through Trojans cannot be completely solved.

In addition, in response to the emergence of new types of Trojans for monitoring, users who use anti-virus software will continue to update the virus database by upgrading, and anti-virus software will purchase the first time. The upgrade process after the end time usually requires the user to pay an additional fee, which increases the user's use cost.

Summary of the invention

In view of this, an object of the present invention is to provide a device and a mobile communication device in a mobile communication device, which can completely solve the problem that the Trojan horse program eavesdrops on the user's voice in an abnormal call state.

To achieve the above objective, an embodiment of the present invention provides an apparatus in a mobile communication device, including:

a switching device connected between the microphone and the processing device, and a switch driving device for driving the switching device to turn on or off a physical path between the microphone and the processing device according to a state of use of the operation button; When the microphone and the processing device are turned on, the processing device amplifies the electrical signal output by the microphone through an amplifying circuit.

Another aspect of the present invention also provides a mobile communication device comprising a microphone, a processing device, and means in the above-described mobile communication device connected between the microphone and the processing device.

In the device of the mobile communication device provided by the embodiment of the present invention, by operating the button, the driving device can drive the switching device to open or turn on the physical path between the microphone and the processing device, and the switching device disconnects between the microphone and the processing device. In the physical path, the microphone and the processing device are cut off in a hardware manner, and the Trojan program cannot control the communication link of the microphone and the processing device by the mobile device without the user's knowledge, thereby completely eliminating the communication path. Mobile communication devices are exploited by criminals as a monitoring tool.

DRAWINGS

1 is a schematic diagram of an apparatus in a mobile communication device according to an embodiment of the present invention;

2 is a schematic diagram of an embodiment of an apparatus in a mobile communication device provided by the present invention; and FIG. 3 is a schematic diagram of another embodiment of the apparatus in the mobile communication device provided by the present invention. DETAILED DESCRIPTION OF THE INVENTION The physical path between the winds and the winds eliminates the possibility that the mobile communication device becomes a monitoring tool from the root.

Based on the above considerations, an embodiment of the present invention provides a device in a mobile communication device, where the device can For anti-eavesdropping. As shown in FIG. 1, the device 1 includes a switching device 101 and a switch driving device 102. Therein, the switching device is connected between the microphone 2 of the mobile communication device and the processing device 3, which in practice may be a CPU in the mobile communication device. The processing device 3 is a main chip (for example, a high-pass platform) in the mobile communication device. When the microphone 2 and the processing device 3 are turned on, the processing device 3 can amplify the electrical signal output by the microphone 2 through an amplifying circuit, and further implement the subsequent Call or recording function.

The switch driving device 102 is for driving the switching device 101 to turn on or off the physical path between the microphone 2 and the processing device 3 in accordance with the use state of the operation button.

With the device in the mobile communication device provided by the embodiment of the present invention, by operating the button, the driving device 102 can be driven to drive the switching device 101 to open or turn on the physical path between the microphone and the processing device, and the switching device 101 disconnects the microphone and processes. When the physical path between the devices is used, the microphone and the processing device are cut off in a hardware manner, which is different from the isolation measures in the prior art that the voice signal collected by the microphone is not processed by the software control processing device. After the device in the mobile communication device of the embodiment cuts off the physical path between the microphone and the processing device, the Trojan program cannot control the communication link of the microphone and the processing device by the mobile communication device without the user's knowledge. And completely eliminate the possibility that mobile communication devices are used by criminals as a monitoring tool. At the same time, when the user needs to answer or make a call normally, the driving device 102 can be driven to drive the switching device 101 to turn on the physical path between the microphone 2 and the processing device 3, and then the microphone 2 can be played normally during the call. effect.

In practice, in order to implement the present invention, the above-mentioned operation buttons may be individually set or may be acted upon by existing buttons on the mobile communication device. The details are explained below.

Embodiment 1

2 is a schematic diagram of an embodiment of a device in a mobile communication device provided by the present invention. In this embodiment, the operation button is a lock button 4 specially provided for the anti-eavesdrop function. The drive device cooperates with the lock button 4, and the switching of the drive device between on and off is achieved by switching the lock button 4 in two states of use. The specific structure of the switch driving device and the switching device is not shown in FIG. 2. In practice, the switching of the use state of the lock key causes a physical path to be switched between on and off. The shut down device can take many forms of implementation.

For example, the lock button can slide between two positions, and the lock button slides to different positions corresponding to the two use states of the lock button respectively, and the switch driving device is interlocked with the lock button, and the switch driving device can be driven by the machine or the circuit. The switching device connected between the microphone and the processing device is turned on or off, so that the user only needs to slide the lock button to change the state of the switching device. After the user hangs up the phone, the lock button can be slid to the "off" position, and the drive device disconnects the physical path between the microphone and the processing device by the drive of the linkage device, so that the microphone is no longer functioning. Avoid using the phone as a listening tool. Before the user answers or makes a call, the lock button can be slid to the "on" position, and the drive device turns on the physical path between the microphone and the processing device by the drive of the linkage with the linkage, so that the microphone functions.

For example, the structure of the lock key can be a single-pole double-position switch, and the switch function is realized by physical action. With the device in the mobile communication device in this embodiment, the user can conveniently disconnect or turn on the physical path between the microphone and the processing device by using the lock button, after disconnecting the physical path between the microphone and the processing device, Because the hardware is isolated, the Trojan can't control the communication link between the microphone and the processing device by the user without knowing the software. It not only does not require the user to purchase anti-virus software, but also There is no longer a need to continuously pay for upgrades, reducing the cost of anti-eavesdropping.

Embodiment 2

3 is a schematic diagram of another embodiment of an apparatus in a mobile communication device provided by the present invention. In this embodiment, the operation buttons are acted upon by existing keys on the mobile communication device. The inventors further considered the keys that are frequently operated during actual calls and on-hook, and it is proposed to preferably use the call key and the hang up key as operation buttons.

As shown in FIG. 3, the driving device includes a level signal control module 1021, and the level signal control module 1021 has a first trigger signal input terminal 1021a, a second trigger signal input terminal 1021b, and a switch signal output terminal 1021c, and a switch signal output. The terminal 1021c is connected to the switching device 1011. The level signal control module 1021 can output a driving letter to the switching device 1011 through the switching signal output terminal 1021c. The two contacts of the call key 51 are respectively connected to the call key voltage output end 31 of the processing device 3 and the first trigger signal input end 1021a of the level signal control module 1021, and the two contacts of the hung up key 52 are respectively connected to the processing device. The hang-up key voltage output terminal 32 and the second trigger signal input terminal 1021b of the level signal control module 1021.

The level signal control module 1021 internally performs the corresponding operation logic on the two paths input by the first trigger signal input terminal 1021a and the second trigger signal input terminal 1021b, and outputs a corresponding switch control signal from the switch signal output terminal according to the operation result. Specifically, when the call key 51 is pressed, the level signal control module 1021 outputs a switch control signal that causes the switch device 1011 to be turned on. When the hoop button 52 is pressed, the level signal control module 1021 outputs such that the switch device 1011 is turned off. Open switch control signal.

In practice, the arithmetic logic of the level signal control module 1021 that satisfies the above requirements can be flexibly selected in accordance with the type of the switching device 1011, the potential of the talk key voltage output terminal 31, and the potential of the hang up key voltage output terminal 32.

For example, when the switching device 1011 is a normally open switch, and the potentials of the call key voltage output terminal 31 and the hang up key voltage output terminal 32 are both high levels, the level signal control module that satisfies the above requirements may include an "AND" operation module internally. And "non" arithmetic modules. The input end of the "non-" computing module is connected to the second trigger signal input end 1021b of the level signal control module, and is used for performing a "non-" operation on the signal input by the second trigger signal input end 1021b, and "and" operation The input end of the module is connected to the first trigger signal input end 1021a and the output end of the "non-" arithmetic module, and is used for "AND" the signal output by the "non-" arithmetic module and the signal input by the first trigger signal input end 1021a. The output signal of the "AND" operation module is used as the switch control signal outputted by the switching signal output terminal 1021c of the level signal control module 1021. If the signal input from the first trigger signal input terminal 1021a is denoted as A, and the signal input from the second trigger signal input terminal 1021b is denoted as B, the output result C of the arithmetic logic is A and S.

Thus, when the call key 51 is pressed, the first trigger signal input terminal 1021a and the call key voltage output terminal 31 are turned on, so that the first trigger signal input terminal 1021a is at a high level, and the first trigger signal input terminal is otherwise used. 1021a is at a low level; when the hang-up button 52 is pressed, the second trigger signal input terminal 1021b and the hang-up key voltage output terminal 32 are turned on, so that the second trigger signal input end 1021b is at a high level, and in other cases, the second trigger signal input terminal 1021b is at a low level. According to the operation logic of the level signal control module 1021, the switch signal output terminal 1021c outputs a high level only when the user presses the call key 51, causing the switch device 1011 to be turned on.

In addition, preferably, in order to enable the processing device 3 to know the use state of the call key 51 and the hang-up key 52, the contact of the call key 51 toward the first trigger signal input terminal 1021a and the first button of the processing device 3 The state sensing terminal 33 is connected, and the contact of the hanging key 52 toward the second trigger signal input terminal 1021b is also connected to the second button state sensing terminal 34 of the processing device 3. By the potential change of the first button state sensing terminal 33, the processing device 3 can know the use state of the call key 51, and the processing device 3 can know the use state of the hang key 52 by the potential change of the second button state sensing terminal 34. Embodiments of the present invention also provide a mobile communication device, which includes a microphone, a processing device, and a device in the mobile communication device in the above various embodiments connected between the microphone and the processing device. Wherein, when the microphone and the processing device are turned on, the processing device amplifies the electrical signal output by the microphone through the amplifying circuit. The internal structure and functions of the devices in the mobile communication device in the above embodiments are as described in the above embodiments, and are not described herein again. The above disclosure is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

Rights request

A device in a mobile communication device, comprising:

2. The device of the mobile communication device according to claim 1, wherein the operation button is a lock button, and the driving device cooperates with the lock button to switch between the two use states by the lock button. , to achieve the switching between the driving switch device between on and off.

3. Apparatus in a mobile communication device according to claim 2, wherein the two states of use of the lock key correspond to different positions to which the lock key is slid.

4. Apparatus in a mobile communication device according to claim 2, wherein the two use states of the lock correspond to depression and lifting of the lock.

The apparatus of the mobile communication device according to claim 1, wherein the call key and the hang up key on the mobile communication device are used as the operation button.

The device in the mobile communication device according to claim 5, wherein the driving device comprises a level signal control module, and the level signal control module has a first trigger signal input end and a second trigger signal. The input end and a switch signal output end; the two contacts of the call key are respectively connected to the call key voltage output end of the processing device and the first trigger signal input end of the level signal control module, and the two contacts of the hung up key are respectively Connecting the hanging key voltage output end of the processing device and the second trigger signal input end of the level signal control module, wherein the level signal control module is configured to input the first trigger signal input end and the second trigger signal input end The two signals execute the operation logic, and output a corresponding switch control signal from the switch signal output end according to the operation result, wherein when the call key is pressed, the level signal control module outputs a switch control signal that causes the switch device to be turned on, When the hang-up key is pressed, the level signal control module outputs a switch control signal that causes the switching device to be turned off.

The device of the mobile communication device according to claim 6, wherein the switch device is a normally open switch, and the call key voltage output end and the hang up key voltage output end are both in high power. The level signal control module internally includes an AND operation module and a non-operation module, and an input end of the non-operation module is connected to a second trigger signal input end of the level signal control module, and is used for Performing a "non-" operation on the signal input by the second trigger signal input terminal, the input end of the "AND" operation module is connected to the first trigger signal input end, and the input end of the "AND" operation module is further The output end of the operation module is connected to perform an operation of "AND" between the signal output by the "non" operation module and the signal input from the input end of the first trigger signal; the output signal of the "AND" operation module is used as the level signal The switch control signal outputted by the switch signal output terminal of the control module.

The device of the mobile communication device according to claim 6 or 7, wherein the contact of the call key toward the first trigger signal input end is further connected to the first button state sensing end of the processing device, The contact of the hang-up key toward the second trigger signal input is also coupled to the second button state sensing end of the processing device.

A mobile communication device, comprising: a microphone, a processing device, and a device in the mobile communication device according to any one of claims 1 to 8 connected between the microphone and the processing device.