Electronic device and sound generation method of electronic device
By modulating and superimposing the audio signal in electronic devices and forming audio only at the target position, the problem of poor privacy effect during playback of electronic devices is solved and higher privacy is achieved.
Patent Information
- Application Number
- CN202011155167.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-10-26
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2040-10-26
AI Technical Summary
Electronic devices are easily received by others when playing videos or audio, resulting in poor privacy effects.
Design an electronic device that includes a housing, a display screen and N ultrasonic vibrators. The signal processing module modulates the audio signal and sends it to the ultrasonic vibrator to superimpose it at the target position to form an audio signal, ensuring that it is only in the target. Audio can only be received at the location, but it cannot be received at other locations.
It effectively enhances the privacy effect when playing audio or video, ensuring that only the target location can receive audio signals and other locations cannot receive them, improving privacy.
Smart Images
Figure CN114500707B_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of communication technology, and specifically relates to an electronic device and a sound generation method of the electronic device. Background Art
[0002] With the development of electronic technology, people have higher and higher requirements for electronic devices. Current electronic devices generally have functions such as playing videos and playing audios, but in actual use, when electronic devices use speakers to play videos or audios, they are easily received by others, resulting in poor privacy when electronic devices play videos or audios. Summary of the invention
[0003] The purpose of the embodiments of the present application is to provide an electronic device and a sound generation method of the electronic device, which can solve the problem of poor privacy when the electronic device plays video or audio.
[0004] In order to solve the above technical problems, this application is implemented as follows:
[0005] In a first aspect, an embodiment of the present application provides an electronic device, comprising: a housing, a display screen, a signal processing module, and N ultrasonic vibrators, wherein the housing is provided with a receiving groove and M sound outlet holes, the display screen is disposed in the receiving groove, and forms a receiving cavity with the receiving groove, the signal processing module and the N ultrasonic vibrators are both located in the receiving cavity, the signal processing module is electrically connected to the N ultrasonic vibrators, respectively, and each of the ultrasonic vibrators is connected to at least one of the sound outlet holes through a sound guide channel, M≥N≥2, and M and N are integers;
[0006] The signal processing module is used to modulate the first audio signal into a first modulation signal, and send the first modulation signal to P target ultrasonic vibrators among the N ultrasonic vibrators, so that each target ultrasonic vibrator sends an ultrasonic signal, and the P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal.
[0007] In a second aspect, an embodiment of the present application provides a sound-generating method of an electronic device, wherein the electronic device includes a housing, a display screen, a signal processing module, and N ultrasonic vibrators, wherein the housing is provided with a receiving groove and M sound outlet holes, the display screen is arranged in the receiving groove, and forms a receiving cavity with the receiving groove, the signal processing module and the N ultrasonic vibrators are both located in the receiving cavity, the signal processing module is electrically connected to the N ultrasonic vibrators, respectively, and each of the ultrasonic vibrators is connected to at least one of the sound outlet holes through a sound guide channel, M≥N≥2, and M and N are integers, and the method includes:
[0008] Determine the target location of the target object;
[0009] Determine P target ultrasonic vibrators from the N ultrasonic vibrators according to the first audio signal and the target position, and obtain a first modulation signal;
[0010] Controlling the signal processing module to send the first modulation signal to the P target ultrasonic vibrators of the electronic device, so that each target ultrasonic vibrator sends an ultrasonic signal, and the P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal;
[0011] Wherein, N≥P≥2, and P is an integer.
[0012] In a third aspect, an embodiment of the present application provides a sound-generating device of an electronic device, the electronic device comprising a housing, a display screen, a signal processing module and N ultrasonic vibrators, the housing being provided with a receiving groove and M sound outlet holes, the display screen being arranged in the receiving groove and forming a receiving cavity with the receiving groove, the signal processing module and the N ultrasonic vibrators being both located in the receiving cavity, the signal processing module being electrically connected to the N ultrasonic vibrators respectively, each of the ultrasonic vibrators being connected to at least one of the sound outlet holes respectively through a sound guide channel, M≥N≥2, and M and N are integers; the sound-generating device further comprises:
[0013] A first determination module, used to determine a target position of a target object;
[0014] a second determination module, configured to determine P target ultrasonic vibrators from the N ultrasonic vibrators according to the first audio signal and the target position, and obtain a first modulation signal;
[0015] a first control module, configured to control the signal processing module to send the first modulation signal to the P target ultrasonic vibrators of the electronic device, so that each target ultrasonic vibrator sends an ultrasonic signal, and the P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal;
[0016] Wherein, N≥P≥2, and P is an integer.
[0017] In a fourth aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the sound emitting method of the electronic device as described in the second aspect.
[0018] In a fifth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the sound emitting method of an electronic device as described in the second aspect are implemented.
[0019] In a sixth aspect, an embodiment of the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the sound production method of the electronic device as described in the second aspect.
[0020] In an embodiment of the present application, the electronic device includes: a housing, a display screen, a signal processing module and N ultrasonic vibrators, the housing is provided with a receiving groove and M sound outlet holes, the display screen is arranged in the receiving groove, and forms a receiving cavity with the receiving groove, the signal processing module and the N ultrasonic vibrators are both located in the receiving cavity, the signal processing module is electrically connected to the N ultrasonic vibrators respectively, each of the ultrasonic vibrators is connected to at least one of the sound outlet holes through a sound guide channel, M≥N≥2, and M and N are integers. In this way, since each target ultrasonic vibrator sends an ultrasonic signal, and P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal, and other positions will not form target audio, that is, other positions cannot receive the target audio, thereby enhancing the privacy effect when playing audio or video. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is one of the structural schematic diagrams of an electronic device provided in an embodiment of the present application;
[0022] Figure 2 is a propagation schematic diagram of a first modulated signal provided in an embodiment of the present application;
[0023] Figure 3 is a flow chart of a sound generation method of an electronic device provided in an embodiment of the present application;
[0024] Figure 4 is a propagation schematic diagram of a second modulation signal provided in an embodiment of the present application;
[0025] Figure 5 This is a flow chart of a camera taking a face image provided by an embodiment of the present application;
[0026] Figure 6 It is a structural schematic diagram of a sound-generating device of an electronic device provided in an embodiment of the present application;
[0027] Figure 7 This is a second structural diagram of an electronic device provided in an embodiment of the present application;
[0028] Figure 8 This is the third structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0030] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.
[0031] The electronic device and the sound generation method provided by the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in combination with the accompanying drawings.
[0032] See also Figure 1 , Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application, such as Figure 1 As shown, the electronic device includes: a housing 10, a display screen 20, a signal processing module (not shown in the figure) and N ultrasonic vibrators 30, the housing 10 is provided with a receiving groove and M sound outlet holes 11, the display screen 20 is arranged in the receiving groove, and forms a receiving cavity with the receiving groove, the signal processing module and the N ultrasonic vibrators 30 are both located in the receiving cavity, the signal processing module is electrically connected to the N ultrasonic vibrators 30 respectively, each of the ultrasonic vibrators 30 is connected to at least one of the sound outlet holes 11 through a sound guide channel, M≥N≥2, and M and N are integers;
[0033] Among them, the signal processing module is used to modulate the first audio signal into a first modulation signal, and send the first modulation signal to P target ultrasonic vibrators among the N ultrasonic vibrators 30, so that each target ultrasonic vibrator sends an ultrasonic signal, and the P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal.
[0034] Among them, the ultrasonic vibrator 30 in the embodiment of the present application can be called a sound-emitting device, the sound outlet hole can also be called a sound outlet channel, and a power amplifier can also be arranged between the signal processing module and each ultrasonic vibrator 30.
[0035] The working principle of the embodiment of the present application can be seen in the following description:
[0036] The signal processing module can modulate the first audio signal into a first modulated signal, and send the first modulated signal to P target ultrasonic vibrators, and the above P target ultrasonic vibrators can send ultrasonic signals, and the ultrasonic signals can interfere with each other when propagating in the air, and form a target audio corresponding to the first audio signal at the target position. That is, other positions except the target position cannot receive the target audio, so that as long as the user (that is, the user using the electronic device) is at the above target position and other users are not at the target position, it can be ensured that other users cannot receive the above target audio, thereby improving the privacy of the electronic device when playing the above first audio signal.
[0037] It should be noted that, as an optional implementation, the first modulated signal can be an ultrasonic signal, that is, the signal processing module can modulate the first audio signal into an ultrasonic signal, and the target ultrasonic vibrator can send the ultrasonic signal; as another optional implementation, the target ultrasonic vibrator can transmit the first modulated signal to the external environment in the form of an ultrasonic signal.
[0038] For example: See Figure 2 , the first audio signal can be f0, and the signal processing module can modulate the first audio signal into multiple first modulation signals (such as f1 and f2), and the first modulation signals f1 and f2 can pass through the corresponding sound-generating device (i.e., ultrasonic vibrator 30) and the sound output channel (i.e., sound guide channel) in sequence to form an ultrasonic signal that propagates in the air, and the above ultrasonic signals can be interfered and superimposed in the air, and then at least one of the signals f1+f2, f1-f2, and f2-f1 is obtained, and the above superimposed signals f1+f2, as well as f1 and f2 are all in the ultrasonic frequency band, and the superimposed signals f1-f2 or f2-f1 can be superimposed at the target position after the self-demodulation process of the air to form a target audio corresponding to the first audio signal (i.e., the playback content can match the content of the first audio signal f0). In this way, the target audio has the advantages of high directivity and small side lobes, thereby ensuring better privacy.
[0039] The target audio may also be understood as: the main lobe of the sound pressure of the target audio has a certain directional angle, and the directional angle may also be understood as pointing to the target position.
[0040] It should be noted that the interference superposition and self-demodulation process of multiple first modulated signals in the air can be collectively referred to as nonlinear propagation effect.
[0041] In addition, the phases of the ultrasonic signals emitted by any two of the P target ultrasonic vibrators may be the same or different. For example, when the target position is a position in a direction perpendicular to the center position of the display screen 20 of the electronic device, the phases of the ultrasonic signals emitted by any two of the target ultrasonic vibrators may be the same; when the target position is other positions, the phases of the ultrasonic signals emitted by some of the P target ultrasonic vibrators may be different.
[0042] It should be noted that the signal processing module may include a control unit, and the control unit may control the phase of the first modulation signal sent to each target ultrasonic vibrator, thereby adjusting the superposition position of the target audio.
[0043] At the same time, the target position can also be determined according to the specific position of the facial image of the user of the electronic device, and then the phase of the ultrasonic signal emitted by each target ultrasonic vibrator can be determined according to the target position and the specific position of each target ultrasonic vibrator. In this way, the ultrasonic signals emitted by multiple target ultrasonic vibrators can be interfered and superimposed to obtain the target audio corresponding to the first audio signal.
[0044] The method for detecting the specific position of the user's facial image is not specifically limited herein. For example, the detection method may be infrared light detection or ultrasonic wave detection.
[0045] In addition, the ultrasonic vibrator 30 is vibrated to send ultrasonic signals to the external environment. Since the vibration of the ultrasonic vibrator 30 does not generate other noises, the interference of the noises on the user can be reduced.
[0046] The distribution of the N ultrasonic vibrators 30 is not limited herein. As an optional implementation, the N ultrasonic vibrators 30 may be randomly distributed.
[0047] As another optional embodiment, the N ultrasonic vibrators 30 are distributed in an array. In this way, compared with the method in which the N ultrasonic vibrators 30 are concentrated in one position, the distribution of the N ultrasonic vibrators 30 can be more uniform, and the target audio can be better superimposed at the target position.
[0048] Of course, the number of ultrasonic vibrators 30 is not limited here. For example, the number of ultrasonic vibrators 30 (ie, the value of N) can be an even number, such as 4, 6, or 8.
[0049] In addition, as an optional implementation, N ultrasonic vibrators 30 may be disposed on the housing 10 of the electronic device. For example, a plurality of receiving holes are provided on the housing 10 , and an ultrasonic vibrator 30 is embedded in each receiving hole.
[0050] Of course, as another optional implementation, see Figure 1 The electronic device includes a shell 10, the shell 10 is provided with a receiving groove and M sound outlet holes 11, the display screen 20 is arranged in the receiving groove, and forms a receiving cavity with the receiving groove, the signal processing module and the N ultrasonic vibrators 30 are both located in the receiving cavity, the signal processing module is electrically connected to the N ultrasonic vibrators 30 respectively, each of the ultrasonic vibrators 30 is connected to at least one of the sound outlet holes 11 through a sound guide channel, M≥N≥2, and M and N are integers.
[0051] In this way, since M sound outlet holes 11 are provided, the ultrasonic vibrator 30 can make sound through the sound outlet holes 11, and there is no need to set the ultrasonic vibrator 30 on the shell 10, thereby enhancing the protection effect of the ultrasonic vibrator 30. At the same time, setting the ultrasonic vibrator 30 in the accommodating cavity can make the electronic device more beautiful and have better waterproof and dustproof performance.
[0052] Among them, the ultrasonic vibrator 30 can be arranged one by one with the sound outlet hole 11, that is, at this time the sound guide channel can be perpendicular to the ultrasonic vibrator 30 and the sound outlet hole 11 respectively, and the distance of the sound guide channel is the shortest at this time, thereby reducing the loss of the signal propagating in the sound guide channel; of course, the ultrasonic vibrator 30 and the sound outlet hole 11 can also be staggered, that is, the sound guide channel can form a certain angle with the ultrasonic vibrator 30 and the sound outlet hole 11 respectively. In this way, the setting position of the ultrasonic vibrator 30 can be more flexible, that is, it does not need to be limited to the position opposite to the sound outlet hole 11.
[0053] As an optional implementation, see Figure 1 The M sound outlet holes 11 are all located between the edge of the display screen 20 and the inner wall of the accommodating groove.
[0054] In this way, since the M sound holes 11 are located between the edge of the display screen 20 and the inner wall of the accommodating groove, the influence of the sound holes 11 on the display effect of the display screen 20 can be reduced, the structural integrity of the display screen 20 can be ensured, and the screen-to-body ratio of the electronic device can be increased.
[0055] Among them, the sound hole 11 can be a part of the assembly gap between the edge of the display screen 20 and the inner wall of the accommodating groove, and the other parts of the assembly gap that are not the sound hole 11 can be filled with an adhesive layer to enhance the connection strength between the display screen 20 and the shell 10 and enhance the fixing effect of the display screen 20.
[0056] Alternatively, see Figure 3The embodiment of the present application also provides a sound-generating method of an electronic device, which can be applied to the electronic device in the above embodiment, that is, the electronic device may include: a housing 10, a display screen 20, a signal processing module and N ultrasonic vibrators 30, the housing 10 is provided with a receiving groove and M sound outlet holes 11, the display screen 20 is arranged in the receiving groove, and forms a receiving cavity with the receiving groove, the signal processing module and the N ultrasonic vibrators 30 are both located in the receiving cavity, the signal processing module is electrically connected to the N ultrasonic vibrators 30 respectively, each of the ultrasonic vibrators 30 is connected to at least one of the sound outlet holes 11 through a sound guide channel, M≥N≥2, and M and N are integers, and the method includes the following steps:
[0057] Step 301: Determine the target position of the target object.
[0058] Among them, the target object can refer to a user or other object. When the target object is a user of an electronic device, since the target audio is only generated at the target position, the privacy of the target audio playback can be enhanced, while reducing the impact on other users; of course, when the target object is other objects, such as rabbits and other animals, since the target audio is only generated at the target position, this can have the effect of driving away the animals.
[0059] Step 302: According to the first audio signal and the target position, P target ultrasonic vibrators are determined from the N ultrasonic vibrators, and a first modulation signal is obtained.
[0060] Among them, the process of obtaining the first modulated signal can refer to the relevant description in the above embodiment, that is, the first modulated signal can be obtained by modulation of the signal processing module, and the details will not be repeated here.
[0061] Among them, P target ultrasonic vibrators are determined according to the first audio signal and the target position, and then the phase of the ultrasonic signal sent by each target ultrasonic vibrator can be determined, so that the target audio can be superimposed at the target position with higher accuracy.
[0062] Step 303: Control the signal processing module to send the first modulation signal to the P target ultrasonic vibrators of the electronic device, so that each target ultrasonic vibrator sends an ultrasonic signal, and the P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal; wherein N≥P≥2, and P is an integer.
[0063] The specific generation principle of the target audio can refer to the corresponding description in the above embodiment, and will not be repeated here.
[0064] The first audio signal may be an audio signal played by the electronic device, or an audio signal included in the played video, which is not specifically limited here. Of course, the first audio signal may be an audio signal stored locally in the electronic device, or an audio signal received or downloaded from a server, which is not specifically limited here.
[0065] Optionally, the electronic device further includes a camera and / or a distance sensor, and before controlling the signal processing module to send the first modulation signal to the P target ultrasonic vibrators of the electronic device, the method further includes:
[0066] controlling the camera to capture a target image containing the target object, and determining the target position according to the target image; and / or,
[0067] The target distance between the target object and the electronic device is acquired by the distance sensor, and the target position is determined according to the target distance.
[0068] The working principle of determining the target position based on the camera can be described as follows: the camera can be a TOF camera, so that the target position can be determined based on the depth information of the target object included in the target image.
[0069] The working principle of determining the target position based on the distance sensor can be described as follows: the distance sensor can be an infrared sensor, and the infrared sensor can determine the target position of the target object by emitting infrared light and receiving reflected infrared light reflected back to the electronic device by the target object.
[0070] In this way, the accuracy of the target position determination can be improved by using a camera and / or a distance sensor.
[0071] In addition, the target position can be determined by the target image captured by the camera. The target object can be a user, and the camera captures the user's face image, and then how to determine the first modulation signal (i.e. Figure 5 The process of determining the phase of the modulated signal in Figure 5 In this way, by adjusting the pointing angle (target position) in real time according to the position of the face image, the purpose of the pointing angle following the face can be achieved, that is, the pointing angle always points to the face direction of the user.
[0072] Optionally, the first modulated signal includes P sub-signals, each sub-signal corresponds to a target ultrasonic vibrator, and the phase and intensity of each sub-signal are related to the position of the corresponding target ultrasonic vibrator. In this way, through the interference superposition of the above P sub-signals, the accuracy of superimposing the target audio at the target position can be further improved, thereby further improving the privacy of the target audio playback.
[0073] Optionally, before controlling the signal processing module to send the first modulation signal to the P target ultrasonic vibrators of the electronic device, the method further includes:
[0074] Controlling N of the ultrasonic vibrators to send a second modulation signal;
[0075] receiving a reflected signal obtained by reflecting the second modulated signal from the target object;
[0076] A target operation is determined based on the reflected signal.
[0077] The target operation is not specifically limited here. For example, the target operation may be to control the display screen of the electronic device to light up or turn off. Of course, the target operation may also be to adjust the volume of the electronic device.
[0078] As an optional implementation, the reflection signal is a signal collected continuously within a time period, so that the accuracy of the reflection signal collection result can be guaranteed, and at the same time, the electronic device can be prevented from being in a state of collecting reflection signals all the time, thereby reducing the power consumption of the electronic device.
[0079] In addition, the target operation may also be determining the sound mode of the electronic device. For example, as an optional implementation, determining the target position of the target object includes:
[0080] When the target sound emission mode is the first sound emission mode, a target position of the target object is determined.
[0081] As another optional implementation, after determining the target position of the target object, the method further includes: when the target sound emission mode is the second sound emission mode, controlling at least part of the M sound emission holes to play the first audio signal.
[0082] In this way, it can be determined through the reflection signal of the second modulated signal whether the electronic device is in the first sound emission mode or the second sound emission mode, thereby making the method of determining the sound emission mode of the electronic device more intelligent.
[0083] The second modulated signal may also be in the ultrasonic frequency band, so that the interference to the user is small, and the second modulated signal and the first modulated signal may be signals of different frequency bands, and the two do not interfere with each other.
[0084] The electronic device has different sound emission modes, and thus has different sound emission methods. When there are other users in the external environment, it means that there is a problem of poor privacy. At this time, the electronic device needs to be controlled to be in the first sound emission mode, that is, the signal processing module needs to be controlled to send a first modulation signal to P target ultrasonic vibrators to form a target audio at the target position.
[0085] In addition, as an optional implementation manner, the determining the target operation according to the reflection signal includes:
[0086] determining a target motion of the target object according to the reflection signal;
[0087] A target operation is determined according to the target action.
[0088] The specific type of the target action is not limited here. For example, when the target object is a user, the target action can be a gesture, body movement, or head movement of the user.
[0089] In this way, since the target operation can be determined according to the target action, the control of the electronic device is made more intelligent and flexible.
[0090] Of course, when the target operation is to determine the sound mode of the electronic device, the sound mode of the electronic device can be determined according to the target action. According to the above, the sound mode of the electronic device can include a first sound mode and a second sound mode.
[0091] As for how to specifically detect whether the user wants to control the electronic device to be in the first sound mode or the second sound mode, it can be done by transmitting a second modulated signal. The second modulated signal is transmitted back to the electronic device after encountering the user, and the electronic device can determine the sound mode of the electronic device based on the detected reflected signal. For details, please refer to the corresponding description in the above implementation.
[0092] For example, as an optional implementation, the determining the target operation according to the reflection signal includes:
[0093] determining a target gesture of the user according to the reflected signal;
[0094] It is determined that the electronic device is in a first sound emitting mode or a second sound emitting mode according to the target gesture.
[0095] The reflected signal may be returned to the electronic device through the palm of the user, and different reflected signals indicate different target gestures of the user. Thus, it may be determined whether the electronic device is in the first sound emission mode or the second sound emission mode according to the target gesture.
[0096] It should be noted that there is a one-to-one correspondence between the target gesture and the sound pattern, and the corresponding relationship can be stored in the electronic device body, and of course, can also be obtained through the server.
[0097] In this way, the electronic device can be controlled to be in the first sound emission mode or the second sound emission mode through different gestures, thereby making the determination of the sound emission mode more convenient and accurate.
[0098] It should be noted that see Figure 1 The electronic device may also be provided with at least one sound collection component 40 (also referred to as a microphone) and an analog-to-digital converter. The sound collection component 40 is connected to the processor of the electronic device through the analog-to-digital converter. The reception of the reflected signal of the second modulated signal may be realized by the sound collection component 40, and then after being converted by the analog-to-digital converter, the target gesture is recognized in the processor. Of course, the sound collection component 40 and the analog-to-digital converter may also be connected through a power amplifier.
[0099] For example, the transmission process of the second modulated signal and the corresponding reception process of the reflected signal can be referred to Figure 4 , the details will not be repeated here.
[0100] In the embodiment of the present application, through steps 301 to 303, since each target ultrasonic vibrator sends an ultrasonic signal, and P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal, while other positions do not form target audio, that is, other positions cannot receive the target audio, thereby enhancing the privacy effect when playing audio or video.
[0101] It should be noted that the sound-generating method of the electronic device provided in the embodiment of the present application can be performed by a sound-generating device or a control module in the sound-generating device for performing the sound-generating method. In the embodiment of the present application, the method of performing the sound-generating method by the sound-generating device is taken as an example to illustrate the device of the sound-generating method provided in the embodiment of the present application.
[0102] The embodiment of the present application also provides a sound-generating device of an electronic device, the electronic device comprising a housing 10, a display screen 20, a signal processing module and N ultrasonic vibrators 30, the housing 10 is provided with a receiving groove and M sound outlet holes, the display screen 20 is arranged in the receiving groove, and forms a receiving cavity with the receiving groove, the signal processing module and the N ultrasonic vibrators 30 are both located in the receiving cavity, the signal processing module is electrically connected to the N ultrasonic vibrators 30 respectively, each of the ultrasonic vibrators 30 is connected to at least one of the sound outlet holes through a sound guide channel, M≥N≥2, and M and N are integers; Figure 6 As shown, the sound-generating device 600 comprises:
[0103] A first determination module 601 is used to determine a target position of a target object;
[0104] A second determination module 602 is used to determine P target ultrasonic vibrators from the N ultrasonic vibrators according to the first audio signal and the target position, and obtain a first modulation signal;
[0105] A first control module 603 is used to control the signal processing module to send the first modulation signal to the P target ultrasonic vibrators of the electronic device, so that each target ultrasonic vibrator sends an ultrasonic signal, and the P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal;
[0106] Wherein, N≥P≥2, and P is an integer.
[0107] Optionally, the electronic device further includes a camera and / or a distance sensor, and the sound-generating device 600 further includes:
[0108] A second control module is used to control the camera to capture a target image containing the target object, and determine the target position according to the target image; and / or,
[0109] The third control module is used to obtain the target distance between the target object and the electronic device through the distance sensor, and determine the target position according to the target distance.
[0110] Optionally, the first modulated signal includes P sub-signals, each sub-signal corresponds to a target ultrasonic vibrator, and a phase and an intensity of each sub-signal are related to a position of the corresponding target ultrasonic vibrator.
[0111] Optionally, the sound generating device 600 further includes:
[0112] A fourth control module, used for controlling the N ultrasonic vibrators to send a second modulation signal;
[0113] A receiving module, configured to receive a reflected signal obtained by reflecting the second modulated signal from the target object;
[0114] The third determination module is configured to determine a target operation according to the reflection signal.
[0115] Optionally, the reflection signal is a signal collected continuously within a time period.
[0116] Optionally, the third determining module includes:
[0117] A first determination submodule, configured to determine a target motion of the target object according to the reflection signal;
[0118] The second determining submodule is used to determine a target operation according to the target action.
[0119] The embodiments of the present application can also enhance the privacy effect when playing audio or video.
[0120] The sound-generating device of the electronic device in the embodiment of the present application can be a device, or a component, integrated circuit, or chip in a terminal. The device can be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc. The non-mobile electronic device can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.
[0121] The sound-generating device of the electronic device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.
[0122] The sound-generating device of the electronic device provided in the embodiment of the present application can achieve Figure 3 To avoid repetition, the various processes implemented by the method embodiment are not described here.
[0123] Optional, such as Figure 7 As shown, an embodiment of the present application also provides an electronic device 700, including a processor 701, a memory 702, and a program or instruction stored in the memory 702 and executable on the processor 701. When the program or instruction is executed by the processor 701, each process of the sound emission method embodiment of the above-mentioned electronic device is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.
[0124] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.
[0125] Figure 8 A schematic diagram of the hardware structure of an electronic device to implement an embodiment of the present application.
[0126] The electronic device 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, and a processor 810. The electronic device also includes: a housing, a display screen, a signal processing module, and N ultrasonic vibrators. The housing is provided with a receiving groove and M sound outlet holes. The display screen is arranged in the receiving groove and forms a receiving cavity with the receiving groove. The signal processing module and the N ultrasonic vibrators are both located in the receiving cavity. The signal processing module is electrically connected to the N ultrasonic vibrators respectively. Each of the ultrasonic vibrators is connected to at least one of the sound outlet holes through a sound guide channel. M≥N≥2, and M and N are integers.
[0127] Those skilled in the art will appreciate that the electronic device 800 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 810 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption through the power management system. 8 The electronic device structure shown in the figure does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.
[0128] Among them, the processor 810 is used to determine the target position of the target object; determine P target ultrasonic vibrators from the N ultrasonic vibrators according to the first audio signal and the target position, and obtain a first modulation signal; control the signal processing module to send the first modulation signal to the P target ultrasonic vibrators of the electronic device, so that each target ultrasonic vibrator sends an ultrasonic signal, and the P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal; wherein N≥P≥2, and P is an integer.
[0129] Optionally, the electronic device further includes a camera and / or a distance sensor, and the processor 810 is further configured to:
[0130] controlling the camera to capture a target image containing the target object, and determining the target position according to the target image; and / or,
[0131] The target distance between the target object and the electronic device is acquired by the distance sensor, and the target position is determined according to the target distance.
[0132] Optionally, the first modulated signal includes P sub-signals, each sub-signal corresponds to a target ultrasonic vibrator, and a phase and an intensity of each sub-signal are related to a position of the corresponding target ultrasonic vibrator.
[0133] Optionally, the processor 810 is further configured to:
[0134] Controlling N of the ultrasonic vibrators to send a second modulation signal;
[0135] receiving a reflected signal obtained by reflecting the second modulated signal from the target object;
[0136] A target operation is determined based on the reflected signal.
[0137] Optionally, the reflection signal is a signal collected continuously within a time period.
[0138] Optionally, the operation of determining a target according to the reflected signal performed by the processor 810 includes:
[0139] determining a target motion of the target object according to the reflection signal;
[0140] A target operation is determined according to the target action.
[0141] The embodiments of the present application can also enhance the privacy effect when playing audio or video.
[0142] It should be understood that in the embodiment of the present application, the input unit 804 may include a graphics processor (Graphics Processing Unit, GPU) 8041 and a microphone 8042, and the graphics processor 8041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 807 includes a touch panel 8071 and other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. Other input devices 8072 may include but are not limited to a physical keyboard, a function key (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which will not be repeated here. The memory 809 can be used to store software programs and various data, including but not limited to applications and operating systems. The processor 810 can integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, the user interface, and the application program, etc., and the modem processor mainly processes wireless communication. It is understandable that the above-mentioned modem processor may not be integrated into the processor 810.
[0143] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned electronic device sound emission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
[0144] The processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
[0145] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned electronic device sound emission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
[0146] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
[0147] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.
[0148] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.
[0149] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.
Claims
1. An electronic device, characterized in that: include: A housing, a display screen, a signal processing module and N ultrasonic vibrators, wherein the housing is provided with a receiving groove and M sound outlet holes, the display screen is arranged in the receiving groove and forms a receiving cavity with the receiving groove, the signal processing module and the N ultrasonic vibrators are both located in the receiving cavity, the signal processing module is electrically connected to the N ultrasonic vibrators respectively, each of the ultrasonic vibrators is connected to at least one of the sound outlet holes through a sound guide channel, M≥N≥2, and M and N are integers; The signal processing module is used to modulate the first audio signal into a first modulation signal, and send the first modulation signal to P target ultrasonic vibrators among the N ultrasonic vibrators, so that each target ultrasonic vibrator sends an ultrasonic signal, and the P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal, N≥P≥2, and P is an integer; The M sound outlet holes are all located between the edge of the display screen and the inner wall of the accommodating groove.
2. A sound generating method of an electronic device, characterized in that: The electronic device comprises a housing, a display screen, a signal processing module and N ultrasonic vibrators, the housing is provided with a receiving groove and M sound outlet holes, the display screen is arranged in the receiving groove and forms a receiving cavity with the receiving groove, the signal processing module and the N ultrasonic vibrators are both located in the receiving cavity, the signal processing module is electrically connected to the N ultrasonic vibrators respectively, each of the ultrasonic vibrators is connected to at least one of the sound outlet holes through a sound guide channel, M≥N≥2, and M and N are integers, and the method comprises: Determine the target location of the target object; Determine P target ultrasonic vibrators from the N ultrasonic vibrators according to the first audio signal and the target position, and obtain a first modulation signal; Controlling the signal processing module to send the first modulation signal to the P target ultrasonic vibrators of the electronic device, so that each target ultrasonic vibrator sends an ultrasonic signal, and the P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal; Wherein, N≥P≥2, and P is an integer; Before controlling the signal processing module to send the first modulation signal to the P target ultrasonic vibrators of the electronic device, the method further includes: Controlling N of the ultrasonic vibrators to send a second modulation signal; receiving a reflected signal obtained by reflecting the second modulated signal from the target object; A target operation is determined according to the reflected signal, where the target operation is to control the display screen of the electronic device to light up or turn off, or the target operation is to adjust the volume of the electronic device.
3. The method according to claim 2, characterized in that The electronic device further includes a camera and / or a distance sensor. Before controlling the signal processing module to send the first modulation signal to the P target ultrasonic vibrators of the electronic device, the method further includes: controlling the camera to capture a target image containing the target object, and determining the target position according to the target image; and / or, The target distance between the target object and the electronic device is acquired by the distance sensor, and the target position is determined according to the target distance.
4. The method according to claim 2, characterized in that: The first modulated signal includes P sub-signals, each sub-signal corresponds to a target ultrasonic vibrator, and the phase and intensity of each sub-signal are related to the position of the corresponding target ultrasonic vibrator.
5. The method according to claim 2, characterized in that: The reflection signal is a signal collected continuously within a period of time.
6. The method according to claim 2, characterized in that The determining a target operation according to the reflected signal comprises: determining a target motion of the target object according to the reflection signal; A target operation is determined according to the target action.
7. A sound-generating device for an electronic device, characterized in that: The electronic device comprises a housing, a display screen, a signal processing module and N ultrasonic vibrators, wherein the housing is provided with a receiving groove and M sound outlet holes, the display screen is arranged in the receiving groove and forms a receiving cavity with the receiving groove, the signal processing module and the N ultrasonic vibrators are both located in the receiving cavity, the signal processing module is electrically connected to the N ultrasonic vibrators respectively, each of the ultrasonic vibrators is connected to at least one of the sound outlet holes through a sound guide channel, M≥N≥2, and M and N are integers; the sound-generating device further comprises: A first determination module, used to determine a target position of a target object; a second determination module, configured to determine P target ultrasonic vibrators from the N ultrasonic vibrators according to the first audio signal and the target position, and obtain a first modulation signal; a first control module, configured to control the signal processing module to send the first modulation signal to the P target ultrasonic vibrators of the electronic device, so that each target ultrasonic vibrator sends an ultrasonic signal, and the P ultrasonic signals are superimposed at the target position to form a target audio corresponding to the first audio signal; Wherein, N≥P≥2, and P is an integer; The sound-generating device further comprises: A fourth control module, used for controlling the N ultrasonic vibrators to send a second modulation signal; A receiving module, configured to receive a reflected signal obtained by reflecting the second modulated signal from the target object; The third determination module is used to determine a target operation according to the reflected signal, where the target operation is to control the display screen of the electronic device to light up or turn off, or the target operation is to adjust the volume of the electronic device.
8. The sound generating device according to claim 7, characterized in that: The electronic device further includes a camera and / or a distance sensor, and the sound-generating device further includes: A second control module is used to control the camera to capture a target image containing the target object, and determine the target position according to the target image; and / or, The third control module is used to obtain the target distance between the target object and the electronic device through the distance sensor, and determine the target position according to the target distance.
9. The sound generating device according to claim 7, characterized in that: The first modulated signal includes P sub-signals, each sub-signal corresponds to a target ultrasonic vibrator, and the phase and intensity of each sub-signal are related to the position of the corresponding target ultrasonic vibrator.
10. The sound generating device according to claim 7, characterized in that: The reflection signal is a signal collected continuously within a period of time.
11. The sound generating device according to claim 7, characterized in that: The third determination module comprises: A first determination submodule, configured to determine a target motion of the target object according to the reflection signal; The second determining submodule is used to determine a target operation according to the target action.
12. An electronic device, characterized in that: The invention comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the sound emitting method of the electronic device described in any one of claims 2 to 6.
13. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by a processor, the steps of the sound generation method of the electronic device described in any one of claims 2 to 6 are implemented.