CN111641755B

CN111641755B - Signal output control method and device and electronic equipment

Info

Publication number: CN111641755B
Application number: CN202010482162.9A
Authority: CN
Inventors: 廖敏江
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-06-29
Anticipated expiration: 2040-05-29
Also published as: CN111641755A

Abstract

The embodiment of the application provides a signal output control method, a signal output control device and electronic equipment, relates to the technical field of communication, and can solve the problems that voice data of a user is stolen and privacy safety of the user is threatened. The method comprises the following steps: under the condition that an audio output unit in the electronic equipment works, acquiring a first signal through a motion sensor in the electronic equipment; outputting a second signal through the motion sensor, or forbidding outputting a first signal meeting a preset condition through the motion sensor; the audio output unit works to drive the electronic equipment to vibrate; the second signal is obtained according to the first signal, and the second signal is different from the first signal; the signals meeting the preset conditions are: when the audio output unit outputs voice, the signal obtained by the motion sensor. The method is applied to a scene that the electronic equipment outputs the voice signal.

Description

Signal output control method and device and electronic equipment

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a signal output control method and device and electronic equipment.

Background

At present, in order to acquire the motion state of a smart phone, almost all the smart phones integrate an acceleration sensor. Because the loudspeaker and the acceleration sensor of the mobile phone are installed on the same main board and are very close to each other in distance, the reading of the acceleration sensor can be obviously influenced by the vibration generated by the main board when the loudspeaker works (namely the loudspeaker outputs a voice signal). That is, the operation of the speaker drives the electronic device to vibrate, so that the acceleration sensor detects and outputs a signal. The signals of the acceleration sensor can be restored to the voice signals (or called voice data) of the loudspeaker through deep learning of the signals (or called data) of the acceleration sensor.

Currently, data acquisition of the acceleration sensor does not require any authorization, and an Application program (APP) in the mobile phone can acquire the data without the knowledge of the user. However, the current mobile phone only limits the use of the microphone and the recording permission of the APP, and does not limit the APP to acquire the data of the acceleration sensor. Therefore, the APP in the mobile phone can steal the voice data of the user by acquiring the data of the acceleration sensor, and the mobile phone user is eavesdropped, so that the privacy security of the user is threatened.

Disclosure of Invention

The embodiment of the application provides a signal output control method, a signal output control device and electronic equipment, and can solve the problems that voice data of a user is stolen and privacy and safety of the user are threatened.

In order to solve the above technical problem, the embodiment of the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a signal output control method, where the method includes: under the condition that an audio output unit in the electronic equipment works, acquiring a first signal through a motion sensor in the electronic equipment; outputting a second signal through the motion sensor, or forbidding outputting a first signal meeting a preset condition through the motion sensor; the audio output unit works to drive the electronic equipment to vibrate; the second signal is obtained according to the first signal, and the second signal is different from the first signal; the signals meeting the preset conditions are: when the audio output unit outputs voice, the signal obtained by the motion sensor.

In a second aspect, an embodiment of the present application provides a signal output control apparatus, including: the acquisition module is used for acquiring a first signal through a motion sensor in the electronic equipment under the condition that an audio output unit in the electronic equipment works; the output module is used for outputting a second signal through the motion sensor, or forbidding outputting a first signal meeting a preset condition through the motion sensor; the audio output unit works to drive the electronic equipment to vibrate; the second signal is obtained according to the first signal, and the second signal is different from the first signal; the signals meeting the preset conditions are: when the audio output unit outputs voice, the signal obtained by the motion sensor.

In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program stored on the memory and executable on the processor, and when the program is executed by the processor, the steps of the signal output control method in the first aspect are implemented.

In a fourth aspect, the present application provides a readable storage medium, on which a program is stored, and the program, when executed by a processor, implements the steps of the signal output control method as in the first aspect described above.

In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the signal output control method according to the first aspect.

In the embodiment of the present application, the first signal may be acquired by the motion sensor, and the second signal may be output by the motion sensor, or the first signal meeting the preset condition may be prohibited from being output by the motion sensor. The audio output unit can drive the electronic equipment to vibrate, so that the first signal can be a vibration signal generated by transmitting the vibration of the audio output unit to the motion sensor. The second signal is obtained according to the first signal and is different from the first signal, which means that the first signal cannot be determined through the second signal, that is, the voice signal represented by the first signal cannot be restored through the second signal. In addition, the signals meeting the preset conditions are as follows: when the audio output unit outputs the voice signal, the signal obtained by the motion sensor, namely the first signal meeting the preset condition, can be restored into the voice signal output by the audio output unit. Therefore, the second signal which can not restore the correct voice signal is output through the motion sensor, or the first signal which can restore the voice signal is not output, so that the situation that an illegal user steals the voice data of the user through the signal which steals the motion sensor can be avoided, and the privacy safety of the voice data of the user is protected.

Drawings

Fig. 1 is a schematic flowchart of a signal output control method according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a signal transmission process according to an embodiment of the present application;

fig. 3 is a second schematic diagram of a signal transmission process according to an embodiment of the present application;

fig. 4 is a third schematic diagram of a signal transmission process according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a signal output control apparatus according to an embodiment of the present disclosure;

fig. 6 is a schematic hardware structure diagram of an electronic device according to an embodiment of the present disclosure;

fig. 7 is a second schematic diagram of a hardware structure of an electronic device according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description of the embodiments of the present application, unless otherwise specified, "a plurality" means two or more, for example, a plurality of signals means two or more signals, and the like.

It should be noted that the signal output control method provided in the embodiment of the present application is applied to an electronic device, and in particular, may be applied to a scenario in which the electronic device outputs a voice signal through an audio output unit, for example, a scenario in which a user controls the electronic device to output a voice signal when performing a voice call or a video call.

In the embodiment of the present application, one or more audio output units are included in the electronic device. The audio output unit may be a speaker or a screen audio output unit. Specifically, the audio output unit is used for supporting the electronic device to output a voice signal (or called voice data). In the following embodiments, an audio output unit is taken as an example of a speaker, and a signal output control method provided by the embodiments of the present application is described.

It is emphasized that, in the following embodiments, for clarity of description, the signals output by the audio output unit are described in different positions by two different names of the voice signal and the voice data, but both are used to describe the signals output by the audio output unit per se.

It will be appreciated that the speaker and microphone in the electronic device may operate simultaneously. The electronic device controls the loudspeaker and the microphone to work simultaneously during a voice call or a video call. At this time, the signal output from the speaker may include a voice signal from the microphone.

In an embodiment of the application, one or more motion sensors are included in the electronic device. The motion sensor may be an acceleration sensor or a gyroscope. In particular, a motion sensor is used to detect a motion state of the electronic device, for example, by vibration of an audio output unit causing the motion sensor to detect a signal.

It can be understood that, in the embodiment of the present application, the operation of the audio output unit in the electronic device means that the electronic device outputs a voice signal through the audio output unit. When the audio output unit in the electronic equipment works, the audio output unit vibrates. Specifically, the audio output unit and the motion sensor in the current electronic device are relatively close to each other, for example, the speaker and the acceleration sensor of the mobile phone are mounted on the same main board and are very close to each other. At this time, the audio output unit in the electronic device may generate vibration when operating, and drive the electronic device to vibrate, so that the motion sensor may detect the vibration and output a signal (i.e., a vibration signal).

According to the signal output control method and device and the electronic equipment provided by the embodiment of the application, under the condition that the audio output unit works, the first signal can be obtained through the motion sensor, the second signal is output through the motion sensor, or the first signal meeting the preset condition is forbidden to be output through the motion sensor. The audio output unit can drive the electronic equipment to vibrate, so that the first signal can be a vibration signal generated by transmitting the vibration of the audio output unit to the motion sensor. The second signal is obtained according to the first signal and is different from the first signal, which means that the first signal cannot be determined through the second signal, that is, the voice signal represented by the first signal cannot be restored through the second signal. In addition, the signals meeting the preset conditions are as follows: when the audio output unit outputs the voice signal, the signal obtained by the motion sensor, namely the first signal meeting the preset condition, can be restored into the voice signal output by the audio output unit. Therefore, the second signal which can not restore the correct voice signal is output through the motion sensor, or the first signal which can restore the voice signal is not output, so that the situation that an illegal user steals the voice data of the user through the signal which steals the motion sensor can be avoided, and the privacy safety of the voice data of the user is protected.

The signal output control provided by the embodiments of the present application is described in detail with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Fig. 1 is a schematic flow chart of a signal output control method according to an embodiment of the present disclosure. The signal output control method shown in fig. 1 may include step 101, step 102, and step 103, and step 102 and step 103 are parallel steps.

Step 101, under the condition that an audio output unit in the electronic equipment works, a signal output control device acquires a first signal through a motion sensor in the electronic equipment.

Optionally, the signal output control method provided in this embodiment of the present application may further perform, before step 101, detecting whether an audio output unit in the electronic device is operating. Specifically, if it is detected that the audio output unit is operating, the signal output control device may execute step 101; on the contrary, if the operation of the audio output unit is not detected, the signal output control device may end the signal output control process.

The audio output unit can work through vibration, and the electronic equipment is driven to vibrate through the work of the audio output unit. At this time, the vibration of the audio output unit may be transmitted to the motion sensor in the electronic device, so that the motion sensor acquires a vibration signal generated by the vibration. The first signal may be a vibration signal that the vibration of the audio output unit transfers to the motion sensor, i.e., the first signal may be considered as a signal that the audio output unit inputs to the motion sensor.

It is understood that the audio output unit outputs a voice signal by vibration. At this time, the audio output unit generates a vibration signal, and the vibration signal is transmitted to the motion sensor so that the motion sensor obtains a first signal. I.e. the vibration signal and the first signal can be considered as the same signal, without considering signal losses during the transmission of the vibration signal. Of course, the embodiment of the present application is not particularly limited thereto.

It should be noted that, the operation of the audio output unit refers to the audio output unit outputting a sound signal, that is, the audio output unit outputting audio. For example, the sound signal may include a speech signal and a non-speech signal. Illustratively, the audio indicated by the voice signal is voice, such as voice (i.e., audio) of a user during a voice call or a video call. The audio indicated by the non-speech signal may be a ring tone, music or alert tone, etc.

Optionally, in the present application, the voice signal may be a signal that represents voice data and is output by the audio output unit during a voice call or a video call by the signal output control apparatus.

Specifically, since the first signal is a signal obtained by the motion sensor when the audio output unit operates, if the audio output unit outputs a voice signal, the first signal may be used to restore the voice signal. On the contrary, if the signal output by the audio output unit is not a voice signal (e.g. a sound signal indicating a ringtone), the first signal cannot restore the voice signal.

And 102, outputting a second signal by the signal output control device through the motion sensor.

In the embodiment of the present application, the application scenario in which the signal output control method is implemented through step 101 and step 102 is referred to as application scenario 1.

The second signal is obtained according to the first signal, and the second signal is different from the first signal. Illustratively, the feature vector of the second signal is different from the feature vector of the first signal.

It can be understood that the second signal may be a signal obtained by interfering the first signal so that the feature vector of the first signal is changed, that is, the second signal loses the feature of the first signal, that is, loses the feature of the speech signal corresponding to the first signal.

Further, since the second signal is different from the first signal, the second signal cannot restore the speech signal represented by the first signal, that is, the second signal cannot restore a correct speech signal. At this time, even if the APP in the signal output control device (e.g., an illegal APP in a mobile phone) acquires the second signal output by the signal output device, the voice data of the user cannot be restored by the second signal, and thus the voice data of the user cannot be leaked by the second signal output by the signal output control device.

Step 103, the signal output control device prohibits the motion sensor from outputting the first signal meeting the preset condition.

In the embodiment of the present application, the application scenario in which the signal output control method is implemented through step 101 and step 103 is referred to as application scenario 2.

Wherein, the signal that accords with the preset condition is: and the audio output unit outputs a vibration signal acquired by the motion sensor when the voice signal is output. At this time, the first signal meeting the preset condition may be used to restore the speech signal output by the audio output unit.

Optionally, in the signal output control method provided in this embodiment of the present application, the electronic device may determine whether the first signal meets the preset condition between step 102 and step 103. If the first signal is determined to meet the predetermined condition, the step 103 is executed. On the contrary, if the first signal is judged to be not in accordance with the preset condition, the signal output control device outputs the first signal which is not in accordance with the preset condition through the motion sensor, and the output first signal can not be restored into the voice signal output by the audio output unit, namely, the voice data of the user can not be leaked.

Exemplarily, as shown in fig. 2, a schematic diagram of a signal transmission flow provided in an embodiment of the present application is provided. Among them, the vibration signal M1 of the audio output unit 201 in the electronic device may be transmitted to the motion sensor 202. Subsequently, the motion sensor 202 may detect the vibration signal M1 and output a signal M2 based on the vibration signal M1. For example, in application scenario 1, the vibration signal M1 may be the first signal, and the signal M2 may be the second signal. As another example, in application scenario 2, the vibration signal M1 and the signal M2 are both the first signals that do not meet the preset condition, i.e., the vibration signal M1 is the same as the signal M2.

In addition, fig. 2 and the following related drawings show the signal transmission direction by the direction of the hollow arrow.

According to the signal output control method provided by the embodiment of the application, under the condition that the audio output unit works, the first signal can be obtained through the motion sensor, the second signal is output through the motion sensor, or the first signal meeting the preset condition is forbidden to be output through the motion sensor. The audio output unit can drive the electronic equipment to vibrate, so that the first signal can be a vibration signal generated by transmitting the vibration of the audio output unit to the motion sensor. The second signal is obtained according to the first signal and is different from the first signal, which means that the first signal cannot be determined through the second signal, that is, the voice signal represented by the first signal cannot be restored through the second signal. In addition, the signals meeting the preset conditions are as follows: when the audio output unit outputs the voice signal, the signal obtained by the motion sensor, namely the first signal meeting the preset condition, can be restored into the voice signal output by the audio output unit. Therefore, the second signal which can not restore the correct voice signal is output through the motion sensor, or the first signal which can restore the voice signal is not output, so that the situation that an illegal user steals the voice data of the user through the signal which steals the motion sensor can be avoided, and the privacy safety of the voice data of the user is protected.

Optionally, the signal output control method provided in application scenario 1 of the embodiment of the present application may be implemented by implementation 1, implementation 2, and implementation 3 described below.

Optionally, in implementation 1 of application scenario 1 in the embodiment of the present application, before step 102, the signal output control method may further include step 104 and step 105:

and 104, inputting an interference signal into the motion sensor through a scrambler in the electronic equipment by the signal output control device.

Alternatively, the interference signal may be a random signal.

Alternatively, the scrambler in the electronic device may be implemented by a hardware unit or a software unit. The following description will take the example where the scrambler is implemented by a hardware unit.

Alternatively, the scrambler may be a hardware unit additionally added in a conventional electronic device.

Optionally, the source of the interfering signal is a scrambler, which may be connected to the motion sensor through a switch. The signal output control device can control a switch in the scrambler to be switched to a connection state after detecting that the audio output unit is started and works, and meanwhile, the scrambler is electrified to be in a working state and output an interference signal.

And 105, the signal output control device superposes the interference signal and the first signal to obtain a second signal.

It will be appreciated that superimposing the interfering signal and the first signal amounts to scrambling the first signal. At this time, the second signal loses the characteristics of the first signal, that is, loses the characteristics of the voice signal corresponding to the first signal, so that the second signal cannot be restored to a correct voice signal.

Exemplarily, referring to fig. 2, as shown in fig. 3, a schematic signal transmission flow provided by an embodiment of the present application is shown. Among them, the vibration signal M1 of the audio output unit 201 in the electronic device may be transmitted to the motion sensor 202. The jammer 203 inputs the jammer signal M3 to the motion sensor 202. Subsequently, the motion sensor 202 may detect the vibration signal M1 and superimpose the vibration signal M1 and the interference signal M3 on the output signal M2. For example, in application scenario 1, the vibration signal M1 may be the first signal, and the signal M2 may be the second signal.

The interference signal is superposed on the first signal, so that the superposed second signal loses the characteristics of the original voice signal, the second signal cannot be restored into a correct voice signal, and the purpose of preventing the privacy behavior of a user from being illegally stolen by acquiring the data of the motion sensor is achieved.

Optionally, in implementation 2 of application scenario 1 in the embodiment of the present application, before step 102, the signal output control method may further include step 106 to step 108:

and 106, acquiring a signal of the first signal in the direction of the target axis by the signal output control device.

It can be understood that the signal output control device acquires the first signal, and acquires specific values of the first signal in three quadrant axes of X, Y and Z, that is, acquires a signal in the X-axis direction, a signal in the Y-axis direction and a signal in the Z-axis direction in the first signal.

It should be noted that in the embodiment of the present application, a plurality of components (e.g., a plurality of masses) are built in a motion sensor (e.g., an acceleration sensor) and can detect X, Y, Z accelerations in three directions, and accurate response values in 3 axial directions are obtained by calculation, that is, signals of the first signal in 3 axial directions X, Y, Z are obtained.

For example, the signal of the first signal in the target axis direction may be a signal of the first signal in the Z axis direction.

And step 107, multiplying the numerical value of the signal of the first signal in the target axis direction by a preset coefficient by the signal output control device to obtain a driving signal.

Illustratively, the predetermined coefficient is-1. At this time, the value of the signal of the first signal in the target axis direction is multiplied by a preset coefficient, which means that the value of the signal of the first signal in the target axis direction is inverted. Specifically, the signal output control device may multiply the value of the Z-axis direction signal by-1 to obtain a Z-axis direction signal after inversion. At this time, the vibration direction of the linear motor in the electronic apparatus may be the Z-axis direction.

Step 108, the signal output control device inputs a driving signal to a linear motor in the electronic equipment.

Alternatively, the linear motor is a hardware (or component) that is self-contained in a conventional electronic device.

Optionally, in this embodiment of the present application, the vibration direction of the linear motor in the electronic device may be any one of the X-axis direction, the Y-axis direction, and the Z-axis direction, and the X-axis direction is taken as an example in this embodiment of the present application.

Wherein, the driving signal (such as the inverted Z-axis signal) can trigger the linear motor to move reversely. Wherein, the linear motor reverse motion does: a reverse motion with respect to the motion of the audio output unit in the Z-axis direction, or a reverse motion with respect to the motion of the motion sensor in the Z-axis direction before the signal is input to the linear motor.

Specifically, the signal output control device may input the inverted Z-axis signal (i.e., the driving signal) to a control chip of the linear motor to drive the linear motor to operate. In the case where the linear motor moves up and down during operation, the linear motor also generates Z-axis vibration during operation.

And step 109, under the condition that the linear motor works, the signal output control device acquires a third signal through the motion sensor.

The linear motor works to drive the electronic equipment to vibrate, so that the linear motor acquires a vibration signal transmitted by the linear motor in the electronic equipment. I.e. the third signal may be a signal generated by the motion sensor based on vibrations of the linear motor.

It will be appreciated that operation of the linear motor generates a vibration signal which is transmitted to the motion sensor such that the motion sensor obtains a third signal. I.e. the vibration signal and the third signal can be considered as the same signal, without considering signal losses during the transmission of the vibration signal.

And 110, the signal output control device superposes the third signal and the first signal to obtain a second signal.

Optionally, the driving signal is a signal of the first signal in a Z-axis direction, and the vibration direction of the linear motor is the Z-axis direction. At this time, since the vibration direction of the linear motor vibration and the vibration direction of the audio output unit vibration are opposite in the Z-axis direction, the reverse vibration of the linear motor vibration may have a damping effect on the vibration of the audio output unit in the Z-axis direction, and even cancel each other. That is, in the Z-axis direction, the reverse vibration of the linear motor vibration is a disturbance vibration to the audio output unit vibration. It will be appreciated that in an ideal situation, the value of the second signal ultimately output by the motion sensor is (x, y, 0), where x and y are positive numbers greater than 0. That is, the motion sensor eventually detects vibrations in the X and Y axis directions, but does not detect vibrations in the Z axis direction.

Exemplarily, referring to fig. 2, as shown in fig. 4, a schematic signal transmission flow provided by an embodiment of the present application is shown. Among them, the vibration signal M1 of the audio output unit 201 in the electronic device may be transmitted to the motion sensor 202. The motion sensor 202 transmits a signal M4 to the linear motor 204. Subsequently, as the linear motor 204 vibrates, the linear motor 204 may transmit a vibration signal M5 to the motion sensor 202. Further, the motion sensor 202 may detect the vibration signal M5, and superimpose the vibration signal M1 and the vibration signal M5 on the output signal M2 (including the signal of the first signal in the X axis direction and the signal in the Y axis direction). For example, in application scenario 1, the vibration signal M1 may be the first signal, the signal M2 may be the second signal, the signal M4 may be a signal (i.e., a driving signal) obtained by inverting a Z-axis direction signal of the first signal, and the vibration signal M5 may be the third signal.

Therefore, interference vibration is generated by the linear motor in the electronic equipment, the motion sensor outputs a second signal after superposing the signal (namely the first signal) vibrated by the audio output unit and the signal (namely the third signal) vibrated by the linear motor, the purpose of scrambling the original voice signal is achieved, and the signal output by the transport motion sensor cannot be restored into a correct voice signal.

Optionally, in implementation 3 of application scenario 1 in the embodiment of the present application, before step 102, the signal output control method may further include step 111 and step 112:

and step 111, multiplying the signal of the first signal in the first axial direction by a target coefficient by the signal output control device to obtain a processed signal of the first axial direction.

Optionally, the signal of the first signal in the first axial direction includes: at least one of the signal of the first signal in the X-axis direction, the signal of the Y-axis direction and the signal of the Z-axis direction. Each first axial signal corresponds to a target coefficient.

Optionally, the first axial signal may be at least one randomly selected from a signal of the first signal in the X-axis direction, a signal of the Y-axis direction and a signal of the Z-axis direction, for example, a signal of the first signal in the X-axis direction and a signal of the Y-axis direction.

Optionally, the signal of each first signal in the first axis direction corresponds to a random target coefficient. For example, the target coefficient for the signal of the first signal in the X-axis direction is-1, and the target coefficient for the signal of the first signal in the Y-axis direction is 2. At this time, when the signal of the first axial direction is the signal of the X-axis direction, the value of the corresponding signal of the second axial direction is the value of the signal of the X-axis direction multiplied by-1. When the signal in the first axial direction is a signal in the Y-axis direction, the value of the corresponding signal in the second axial direction is the value of the signal in the Y-axis direction multiplied by 2.

And 112, the signal output control device superposes the signal of the first signal in the second axial direction and the processed signal of the first axial direction to obtain a second signal.

Wherein the first axial direction is different from the second axial direction.

Optionally, the first signal may include other axial signals besides the first axial signal and the second axial signal. That is, the signal output control means may derive the second signal from a part of the first signal, not the entire axial signal.

Illustratively, in connection with the example in step 111 above, the third axial signal is a Z-axis signal. Further, in step 112, the signal output control device may superimpose the signal of the first signal in the X-axis direction obtained by multiplying the numerical value by-1, the signal of the first signal in the Y-axis direction obtained by multiplying the numerical value by 2, and the signal of the first signal in the Z-axis direction to obtain the second signal.

It is understood that, in steps 111 and 112, the signal output control device scrambles the first signal by the software unit to obtain the second signal.

Wherein the second signal loses the characteristic of the first signal by multiplying signals of different axial directions in the first signal acquired by the motion sensor by corresponding target coefficients. Therefore, the purpose of scrambling the original voice signal can be realized, and the signal output by the motion sensor can not be restored into the correct voice signal.

Optionally, in application scenario 2 of the embodiment of the present application, before step 101, the signal output control method may further include step 113 and step 114:

and step 113, the signal output control device stores the first signal into a signal database under the condition that the audio output unit works.

Optionally, each time the audio output unit operates, the signal output control device may store the signal acquired by the motion sensor in the signal database.

It will be appreciated that as the number of signals in the signal database increases, the signal output control means may continually perform deep learning on the signals in the signal database to determine or update the target feature vector described below.

And step 114, the signal output control device updates the target characteristic vector according to the signals in the signal database.

Wherein, the signals in the signal database are the signals acquired by the motion sensor. The target feature vector is: when the audio output unit outputs a voice signal, the motion sensor acquires a feature vector of the signal; the feature vectors of the signals which meet the preset conditions meet the target feature vector.

Specifically, the signal output control module may distinguish a signal acquired by the motion sensor based on the audio output unit from a signal acquired by the motion sensor based on other factors, that is, the signal output control module may distinguish a signal of the motion sensor representing the voice signal. Further, the signal output control module may determine a feature vector of a signal of the motion sensor representing the voice signal as the target feature vector.

Furthermore, the signal output control device can continuously update the target characteristic vector and continuously improve the accuracy of the target characteristic vector, so that the accuracy of filtering the signal which meets the preset condition by the motion sensor can be improved. I.e. to improve the accuracy of filtering the signal in a motion sensor that is able to recover the correct speech signal.

Accordingly, step 103 in the above embodiment may be implemented by step 103 a:

step 103a, the signal output control device prohibits the motion sensor from outputting the first signal of which the feature vector is in line with the target feature vector.

Specifically, the signal output control device may determine whether the first signal meets the preset condition by determining that the feature vector of the first signal meets the target feature vector.

Correspondingly, if the feature vector of the first signal is judged to be not in accordance with the target feature vector, the signal output control device can output the first signal through the motion sensor.

The method can judge whether the first signal meets the preset condition by judging the characteristic vector of the first signal, and the target characteristic vector is the characteristic vector of the signal acquired by the motion sensor when the audio output unit outputs the voice signal, so that whether the first signal is the signal which needs to be filtered by forbidding output by the motion sensor can be accurately judged. At this time, the user's voice data can be prevented from being stolen by acquiring the motion sensor information without additionally adding an interference signal or hardware in the electronic device.

It should be noted that, in the signal output control method provided in the embodiment of the present application, the execution main body may be a signal output control device, or a control module and/or a control entity in the signal output control device for executing the signal output control method. In the embodiment of the present application, a signal output control method executed by a signal output control device is taken as an example, and a signal output control method device provided in the embodiment of the present application is described.

Fig. 5 is a schematic diagram of a signal output control apparatus according to an embodiment of the present disclosure. The signal output control device 50 shown in fig. 5 includes: an obtaining module 51, configured to obtain a first signal through a motion sensor in the electronic device when an audio output unit in the electronic device is in operation; the output module 52 is configured to output the second signal through the motion sensor, or prohibit the motion sensor from outputting the first signal meeting the preset condition; the audio output unit works to drive the electronic equipment to vibrate; the second signal is obtained according to the first signal, and the second signal is different from the first signal; the signals meeting the preset conditions are: when the audio output unit outputs voice, the signal obtained by the motion sensor.

The signal output control device of the embodiment of the application can acquire the first signal through the motion sensor and output the second signal through the motion sensor, or forbid the first signal which accords with the preset condition from being output through the motion sensor. The audio output unit can drive the electronic equipment to vibrate, so that the first signal can be a vibration signal generated by transmitting the vibration of the audio output unit to the motion sensor. The second signal is obtained according to the first signal and is different from the first signal, which means that the first signal cannot be determined through the second signal, that is, the voice signal represented by the first signal cannot be restored through the second signal. In addition, the signals meeting the preset conditions are as follows: when the audio output unit outputs the voice signal, the signal obtained by the motion sensor, namely the first signal meeting the preset condition, can be restored into the voice signal output by the audio output unit. Therefore, the second signal which can not restore the correct voice signal is output through the motion sensor, or the first signal which can restore the voice signal is not output, so that the situation that an illegal user steals the voice data of the user through the signal which steals the motion sensor can be avoided, and the privacy safety of the voice data of the user is protected.

Optionally, the signal output control device 50 further includes: a first control module, configured to input an interference signal into the motion sensor through a scrambler in the electronic device before the output module 52 outputs the second signal through the motion sensor; the interference signal and the first signal obtained by the obtaining module 51 are superimposed to obtain a second signal.

Optionally, the signal output control device 50 further includes: a second control module, configured to obtain a signal of the first signal in the target axis direction before the output module 52 outputs the second signal through the motion sensor; multiplying the numerical value of the first signal in the direction of the target axis by a preset coefficient to obtain a driving signal; inputting a driving signal into a linear motor in an electronic device; under the condition that the linear motor works, a third signal is obtained through the motion sensor; superposing the third signal and the first signal to obtain a second signal; wherein, the linear motor works to drive the electronic equipment to vibrate.

Optionally, the signal output control device 50 further includes: the third control module is configured to, before the output module 52 outputs the second signal through the motion sensor, multiply the signal of the first signal in the first axial direction by a target coefficient to obtain a processed signal of the first axial direction; superposing the signal of the first signal in the second axial direction and the processed signal of the first axial direction to obtain a second signal; wherein the first axial direction is different from the second axial direction.

Optionally, the signal output control device 50 further includes: the fourth control module is used for storing the first signal into the signal database under the condition that the audio output unit of the electronic equipment works after the acquisition module 51 acquires the first signal through the motion sensor under the condition that the audio output unit works; updating the target characteristic vector according to the signals in the signal database; an output module 52, specifically configured to prohibit output of a first signal with a feature vector that matches the target feature vector by the motion sensor; wherein, the signals in the signal database are the signals acquired by the motion sensor; the characteristic vector of the signal which accords with the preset condition accords with the target characteristic vector; the target feature vector is: when the audio output unit outputs a voice signal, the motion sensor acquires a feature vector of the signal.

The signal output control device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in an electronic apparatus. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.

The signal output control in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The signal output control provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 1, and is not described here again to avoid repetition.

Optionally, as shown in fig. 6, an electronic device 600 is further provided in this embodiment of the present application, and includes a processor 601, a memory 602, and a program or an instruction stored in the memory 602 and executable on the processor 601, where the program or the instruction is executed by the processor 601 to implement each process of the signal output control method embodiment, and can achieve the same technical effect, and no further description is provided here to avoid repetition.

It should be noted that the electronic devices in the embodiments of the present application may include the mobile electronic device and the non-mobile electronic device described above.

Fig. 7 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application. As shown in fig. 7, the electronic device 1000 includes, but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, a processor 1010, a scrambler 1011, and a linear motor 1012.

Those skilled in the art will appreciate that the electronic device 1000 may further comprise a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 1010 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The electronic device structure shown in fig. 7 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.

Wherein, the sensor 1005 is used for acquiring a first signal when the audio output unit 1003 works; a sensor 1005 for outputting the second signal, or prohibiting outputting the first signal meeting a preset condition; wherein, the audio output unit 1003 drives the electronic device to vibrate; the second signal is obtained according to the first signal acquired by the sensor 1005, and the second signal is different from the first signal; the signals meeting the preset conditions are: when the audio output unit 1003 outputs voice, the sensor 1005 acquires a signal.

The electronic device of the embodiment of the application can acquire the first signal through the sensor 1005 and output the second signal through the sensor 1005, or prohibit the sensor 1005 from outputting the first signal meeting the preset condition. The audio output unit 1003 can drive the electronic device to vibrate, so that the first signal can be a vibration signal generated by transmitting the vibration of the audio output unit 1003 to the sensor 1005. The second signal is obtained according to the first signal and is different from the first signal, which means that the first signal cannot be determined through the second signal, that is, the voice signal represented by the first signal cannot be restored through the second signal. In addition, the signals meeting the preset conditions are as follows: the signal acquired by the sensor 1005 when the audio output unit 1003 outputs the voice signal, that is, the first signal meeting the preset condition may be restored to the voice signal output by the audio output unit 1003. Therefore, the sensor 1005 outputs the second signal which can not restore the correct voice signal, or does not output the first signal which can restore the voice signal, so that the situation that an illegal user steals the voice data of the user through the signal of the sensor 1005 can be avoided, and the privacy and the safety of the voice data of the user are protected.

Optionally, the scrambler 1011 is configured to input an interference signal into the sensor 1005 before the sensor 1005 outputs the second signal; and a sensor 1005 for superposing the interference signal and the first signal to obtain a second signal.

Optionally, the sensor 1005 is configured to acquire a signal of the first signal in the target axis direction before outputting the second signal; multiplying the numerical value of the first signal in the direction of the target axis by a preset coefficient to obtain a driving signal; inputting a drive signal into a linear motor 1012 in the electronic device; acquiring a third signal through the motion sensor 1005 in a case where the linear motor operates; superposing the third signal and the first signal to obtain a second signal; wherein the linear motor 1012 operates to drive the electronic device to vibrate.

Thus, the sensor 1005 outputs the second signal after superimposing the signal (i.e. the first signal) of the vibration of the audio output unit 1003 and the signal (i.e. the third signal) of the vibration of the linear motor 1012 by generating the interference vibration through the linear motor of the electronic device, so that the purpose of scrambling the original voice signal is achieved, and the signal output by the transmission sensor 1005 cannot be restored to the correct voice signal.

Optionally, the processor 1010 is configured to multiply the signal of the first signal in the first axial direction by a target coefficient before the sensor 1005 outputs the second signal, so as to obtain a processed signal of the first axial direction; superposing the signal of the first signal in the second axial direction and the processed signal of the first axial direction to obtain a second signal; wherein the first axial direction is different from the second axial direction.

Wherein, by multiplying signals of different axial directions in the first signal acquired by the sensor 1005 by the corresponding target coefficients, the second signal can lose the characteristics of the first signal. Thus, the original voice signal can be scrambled, and it is ensured that the signal output by the sensor 1005 cannot be restored to a correct voice signal.

Optionally, the processor 1010 is configured to, in a case that the electronic device audio output unit 1003 operates, store the first signal into the signal database in a case that the audio output unit 1003 operates after the sensor 1005 acquires the first signal; updating the target characteristic vector according to the signals in the signal database; a sensor 1005, specifically configured to prohibit outputting a first signal whose feature vector matches a target feature vector; wherein, the signals in the signal database are signals acquired by the sensor 1005; the characteristic vector of the signal which accords with the preset condition accords with the target characteristic vector; the target feature vector is: when the audio output unit 1003 outputs a voice signal, the sensor 1005 acquires a feature vector of the signal.

Here, since it can be determined whether the first signal meets the preset condition by determining the feature vector of the first signal, and the target feature vector is the feature vector of the signal acquired by the sensor 1005 when the audio output unit 1003 outputs the voice signal, it is possible to accurately determine whether the first signal is a signal that the sensor 1005 needs to perform filtering by prohibiting output. In this case, it is not necessary to add an additional interference signal to the electronic device and to add hardware to the electronic device, and it is possible to prevent the user from stealing voice data by acquiring data of the sensor 1005.

It should be understood that in the embodiment of the present application, the input Unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042, and the Graphics Processing Unit 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 may include two parts, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 1009 may be used to store software programs as well as various data, including but not limited to application programs and operating systems. Processor 1010 may integrate an application processor that handles primarily operating systems, user interfaces, applications, etc. and a modem processor that handles primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1010.

It is understood that, in the embodiment of the present application, the obtaining module 51 and the output module 52 in the signal output control apparatus 50 may be implemented by the sensor 1005 in the electronic device 1000 (e.g., the electronic device 1000 in fig. 7); a first control block in the signal output control device 50, which may be implemented by the scrambler 1011 and the sensor 1005 in the electronic apparatus 1000 in fig. 7; a second control module in the signal output control device 50, which may be implemented by the scrambler 1011 and the sensor 1005 in the electronic apparatus 1000; a third control module in the signal output control device 50, which may be implemented by the scrambler 1011 and the sensor 1005 in the electronic apparatus 1000; the fourth control module in the signal output control device 50 may be implemented by the processor 1010 in the electronic device 1000.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the signal transmission control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The processor may be a processor in the electronic device in the above embodiments. The readable storage medium may include a computer-readable storage medium, such as a read-only memory (ROM), a Random Access Memory (RAM), a magnetic or optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the signal transmission control method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

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. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

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 application 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 an electronic device (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 application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A signal output control method, characterized in that the method comprises:

under the condition that an audio output unit in the electronic equipment works, acquiring a first signal through a motion sensor in the electronic equipment;

outputting a second signal through the motion sensor, or prohibiting outputting of the first signal meeting a preset condition through the motion sensor;

the audio output unit works to drive the electronic equipment to vibrate; the second signal is obtained according to the first signal, and the second signal is different from the first signal; the signals meeting the preset conditions are as follows: and when the audio output unit outputs voice, the motion sensor acquires signals.

2. The method of claim 1, wherein prior to outputting the second signal by the motion sensor, further comprising:

inputting, by a scrambler in the electronic device, an interference signal into the motion sensor;

and superposing the interference signal and the first signal to obtain the second signal.

3. The method of claim 1, wherein prior to outputting the second signal by the motion sensor, the method further comprises:

acquiring a signal of the first signal in the direction of a target axis;

multiplying the value of the first signal in the direction of the target axis by a preset coefficient to obtain a driving signal;

inputting the driving signal into a linear motor in the electronic device;

acquiring a third signal through the motion sensor under the condition that the linear motor works;

superposing the third signal and the first signal to obtain the second signal;

wherein, the linear motor works to drive the electronic equipment to vibrate.

4. The method of claim 1, wherein prior to outputting the second signal by the motion sensor, the method further comprises:

multiplying the signal of the first signal in the first axial direction by a target coefficient to obtain a processed signal of the first axial direction;

superposing the signal of the first signal in a second axial direction and the processed signal of the first axial direction to obtain a second signal;

wherein the first axial direction is different from the second axial direction.

5. The method according to claim 1, wherein after acquiring the first signal by a motion sensor in the electronic device in a case where an audio output unit in the electronic device is operated, the method further comprises:

under the condition that the audio output unit works, the first signal is saved in a signal database;

updating a target feature vector according to the signals in the signal database;

the prohibiting the output of the first signal meeting a preset condition through the motion sensor includes:

inhibiting output of the first signal by the motion sensor with a feature vector that conforms to a target feature vector;

wherein the signals in the signal database are signals acquired by the motion sensor; the characteristic vector of the signal which accords with the preset condition accords with the target characteristic vector; the target feature vector is: and when the audio output unit outputs a voice signal, the motion sensor acquires a feature vector of the signal.

6. A signal output control apparatus, characterized in that the apparatus comprises:

the device comprises an acquisition module, a processing module and a control module, wherein the acquisition module is used for acquiring a first signal through a motion sensor in the electronic equipment under the condition that an audio output unit in the electronic equipment works;

the output module is used for outputting a second signal through the motion sensor, or forbidding outputting of the first signal meeting a preset condition through the motion sensor;

7. The apparatus of claim 6, further comprising:

a first control module, configured to input an interference signal into the motion sensor through a scrambler in the electronic device before the output module outputs the second signal through the motion sensor; and superposing the interference signal and the first signal to obtain the second signal.

8. The apparatus of claim 6, further comprising:

the second control module is used for acquiring a signal of the first signal in the direction of a target axis before the output module outputs the second signal through the motion sensor; multiplying the value of the first signal in the direction of the target axis by a preset coefficient to obtain a driving signal; inputting the driving signal into a linear motor in the electronic device; acquiring a third signal through the motion sensor under the condition that the linear motor works; superposing the third signal and the first signal to obtain the second signal; wherein, the linear motor works to drive the electronic equipment to vibrate.

9. The apparatus of claim 6, further comprising:

the third control module is used for multiplying the signal of the first signal in the first axial direction by a target coefficient before the output module outputs the second signal through the motion sensor to obtain a processed signal of the first axial direction; superposing the signal of the first signal in a second axial direction and the processed signal of the first axial direction to obtain a second signal; wherein the first axial direction is different from the second axial direction.

10. The apparatus of claim 6, further comprising:

the fourth control module is used for storing the first signal into a signal database under the condition that the audio output unit in the electronic equipment works after the acquisition module acquires the first signal through the motion sensor in the electronic equipment under the condition that the audio output unit in the electronic equipment works; updating a target feature vector according to the signals in the signal database;

the output module is specifically configured to prohibit the motion sensor from outputting the first signal whose feature vector matches a target feature vector;