Electronic device

Abstract

The embodiment of the invention provides electronic equipment, relates to the technical field of electronics, and is used for improving the experience feeling when a user uses the electronic equipment. The electronic equipment comprises a driving module and a sound production and vibration component which are arranged in a shell. The driving module is used for outputting a driving signal according to the received control variable; the sounding and vibrating component is coupled with the driving module; the sound production and vibration part is used for producing sound and generating vibration under the driving of the driving signal; therefore, the electronic equipment can simulate the vibration sense of the writing particles and the writing sound. Furthermore, even under the same control variable, the sound produced by the sound production part and the sound produced by the vibration part are random in the time domain instead of being unchanged, so that the experience of the electronic equipment is more real.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to an electronic device. Background Art

[0002] The contact and friction between two objects usually produce sound and vibration. For example, when a pen writes on paper, it will produce low-decibel vibration and high-decibel sound. With the development of electronic technology, display products with touch functions have the function of presenting written patterns, so technicians in this field have developed electronic devices (such as styluses) that match display products. As a common input device, the stylus can easily realize the character input function of display products such as notebooks on the one hand, and can also be used as a mouse on the other hand, so it has broad application prospects and good product recognition.

[0003] However, since display products are essentially different from paper, users lack a real writing experience when using electronic devices. In order to improve the user's writing experience, those skilled in the art add a sound playback module to the electronic device to simulate the sound emitted during the writing process. However, under the same limiting conditions, the sound playback module can only play fixed sounds, and the user's writing experience is still relatively poor. Summary of the invention

[0004] An embodiment of the present application provides an electronic device for generating, under the same limiting conditions, random sounds and vibrations for simulating writing, rather than being constant.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect of an embodiment of the present application, an electronic device is provided, comprising: a first housing, a driving module, and a sound and vibration component. The first housing has a housing cavity inside; the driving module is disposed in the housing cavity, and is used to receive a control variable and output a driving signal according to the control variable; the sound and vibration component is located in the housing cavity and coupled to the driving module; the sound and vibration component is used to emit sound and generate vibration under the drive of the driving signal; wherein, under the same control variable, the sound and / or vibration emitted by the sound and vibration component has randomness in the time domain.

[0007] The electronic device provided by the embodiment of the present application is provided with a driving module inside, and the sound and vibration components can generate vibrations under the drive of the driving module, so that the electronic device can simulate the vibration of writing particles. The sound and vibration components can also emit sounds under the drive of the driving module, so that the electronic device can simulate the writing sound. On this basis, under the same control variable, the sound and / or vibration emitted by the sound and vibration components are random in the time domain, so even if the use state of the electronic device remains unchanged (the control variable remains unchanged), the sound and / or vibration emitted by the sound and vibration components are also variable, not static. Similar to writing on paper, even if the writing state remains unchanged, the friction sound and roughness will still change due to changes in paper granularity and paper thickness. Therefore, the electronic device provided by the embodiment of the present application is random in the case of the same limiting conditions, and the use experience is more real, and it is used for a good experience.

[0008] In a possible implementation, the driving module is specifically used to receive a first control variable in a first time period, and output a first driving signal according to the first control variable, and the sound and vibration component is specifically used to emit a first sound and generate a first vibration under the drive of the first driving signal; the driving module is also specifically used to receive a second control variable in a second time period, and output a second driving signal according to the second control variable, and the sound and vibration component is also specifically used to emit a second sound and generate a second vibration under the drive of the second driving signal; the first control variable is the same as the second control variable, and the sound pressure waveform of the first sound is different from the sound pressure waveform of the second sound; and / or, the amplitude of the first vibration is different from the amplitude of the second vibration. Through the randomness of the sound pressure waveform and amplitude in the time domain, even if the use state of the electronic device remains unchanged, the sound and vibration emitted by the sound and vibration component are variable, thereby improving the user experience.

[0009] In a possible implementation, the driving module is used to receive a first control variable in a first time period and output a first driving signal according to the first control variable; and is also used to receive a second control variable in a second time period and output a second driving signal according to the second control variable; the first control variable is the same as the second control variable, and the first driving signal is different from the second driving signal. By making the driving signal random in the time domain, the sound and vibration generated by the sound and vibration components can be made random in the time domain, thereby improving the user experience.

[0010] In a possible implementation, the sound and vibration component is used to generate sound by vibrating under the drive of the driving module. In this way, the sound generated by the sound and vibration component matches the control variable more closely, the sound is more realistic and varied, and the experience is better.

[0011] In a possible implementation, the time difference between the start time of the sound and vibration component emitting sound and the start time of the sound and vibration component generating vibration is less than or equal to 50ms. In the embodiment of the present application, the start time difference of the sound and vibration component emitting sound and generating vibration is controlled within 50ms, which can improve the simultaneity of the sound and vibration start of the sound and vibration of the sound and vibration component, so that the vibration and sound generated by the sound and vibration component are more compatible with the control variable, thereby improving the user experience.

[0012] In a possible implementation, the time difference between the cut-off time for the sound-generating and vibration-generating component to emit sound and the cut-off time for the sound-generating and vibration-generating component to generate vibration is less than or equal to 50ms. In the embodiment of the present application, the cut-off time difference for the sound-generating and vibration-generating component to emit sound and generate vibration is controlled within 50ms, which can improve the simultaneity of the sound-generating and vibration-generating component sound-generating and vibration-generating cut-off, so that the vibration and sound generated by the sound-generating and vibration-generating component are more compatible with the control variables, thereby improving the user experience.

[0013] In a possible implementation, the sound and vibration component includes a vibration device and a sound device; the driving module is used to output a vibration driving signal to drive the vibration device to generate vibration; and is also used to output a sound driving signal to drive the sound device to generate sound. The vibration device and the sound device are two independent devices, which are flexible to set up and have low requirements on device performance.

[0014] In a possible implementation, the driving module includes a first output terminal and a second output terminal, the vibration device is coupled to the first output terminal, and the sound device is coupled to the second output terminal. The first output terminal and the second output terminal independently output control signals, which can reduce the performance requirements of the driving module.

[0015] In a possible implementation, the time difference between the start time of the vibration drive signal and the start time of the sound drive signal is less than or equal to 50ms. In the embodiment of the present application, the start time difference of the vibration drive signal and the sound drive signal is controlled within 50ms, which can improve the simultaneity of the sound and vibration start of the vibration component, so that the vibration and sound generated by the sound and vibration component are more compatible with the control variable, thereby improving the user experience effect.

[0016] In a possible implementation, the time difference between the cutoff time of the vibration drive signal and the cutoff time of the sound drive signal is less than or equal to 50ms. In the embodiment of the present application, the cutoff time difference between the vibration drive signal and the sound drive signal is controlled within 50ms, which can improve the simultaneity of the sound and vibration cutoff of the sound and vibration components, so that the vibration and sound generated by the sound and vibration components are more compatible with the control variables, thereby improving the user experience effect.

[0017] In a possible implementation, the electronic device further includes a low-pass filter circuit and a high-pass filter circuit; the low-pass filter circuit is coupled between the third output terminal of the driving module and the vibration device, and the low-pass filter circuit is used to pass a signal less than a set frequency; the high-pass filter circuit is coupled between the third output terminal and the sound device, and the high-pass filter circuit is used to pass a signal greater than or equal to the set frequency. By making the driving module output a wide-band waveform covering the vibration drive signal frequency band (for example, 0Hz-1000Hz) and the sound drive signal frequency band (for example, 1000Hz-20000Hz), and then divided into two, one is transmitted to the vibration device through the low-pass filter circuit, and the other is transmitted to the sound device through the high-pass filter circuit. Then, the vibration drive signal transmitted to the vibration device and the generation drive signal transmitted to the sound device are obtained by filtering from the same signal, and the vibration drive signal and the generation drive signal are almost started and stopped at the same time. The starting time difference and the end time difference of the vibration drive signal and the generation drive signal can be 0 in theory, so that the vibration device and the sound device can be started at the same time, thereby improving the user experience effect.

[0018] In a possible implementation, the sound and vibration component includes a second shell and a driving member, a cantilever and a mass block arranged in the second shell; the second shell includes an opening; the mass block is located on the side of the cantilever away from the opening and has a gap with the second shell; the driving member is used to generate a vibration driving force under the drive of the driving module, and the driving member is arranged near the opening; one end of the cantilever is connected to the second shell, and the other end of the cantilever is connected to the mass block. The sound and vibration component provided in the embodiment of the present application drives the cantilever to swing by the vibration of the driving member. The driving member can drive the cantilever to generate a low-order vibration frequency (for example, <1000Hz) under the drive of the vibration driving signal output by the driving module for generating vibration. The driving member can also drive the cantilever to generate a high-order vibration frequency (for example, ≥1000Hz) under the drive of the sound driving signal output by the driving module for generating sound. A sound and vibration component can achieve sound and vibration at the same time, and the structure in the electronic device is simple and easy to layout.

[0019] In a possible implementation, the sound and vibration component further includes a damping member, which is disposed on an inner surface of the second shell body opposite to the opening. By arranging the damping member on the inner wall of the second shell body, a buffering effect can be achieved on the one hand, and the bandwidth of the sound and vibration component can be adjusted on the other hand.

[0020] In a possible implementation, the electronic device is a pen, and the sound and vibration components are arranged near the pen tip. When writing on paper, the sound and vibration are transmitted from the pen tip, and the position of the hand is also close to the side of the pen tip. Therefore, arranging the sound and vibration components near the pen tip can better simulate the friction sound and vibration of writing.

[0021] In one possible implementation, the electronic device includes a sound output channel, which is connected to the sound and vibration component. When laying out the components inside the electronic device, reserving the sound output channel can reduce sound loss. Moreover, when vibrating to generate sound, sufficient air gaps need to be left so that the sound can be effectively transmitted.

[0022] In a possible implementation, the electronic device is a pen, the first housing includes a sound outlet, the sound outlet is connected to the sound outlet channel, and the sound outlet is arranged near the pen tip. When writing on paper, sound and vibration are transmitted from the pen tip. Therefore, arranging the sound outlet near the pen tip can better simulate the friction sound and vibration of writing.

[0023] In a possible implementation, the first shell includes a pen tip, a pen body, and a connecting portion, wherein the pen tip and the pen body are connected via the connecting portion; the pen body has a receiving cavity; and the area of ​​the pen body not blocked by the connecting portion has a sound outlet. This is a simple structural setting.

[0024] In a possible implementation, the electronic device further includes a sound detector, which is coupled to the driving module and is used to detect the sound emitted by the sound-emitting and vibration components, and transmit the detection result to the driving module. By setting the sound detector in the electronic device, the actual sound value emitted by the sound-emitting and vibration components can be detected in real time, and the driving signal can be adjusted in real time according to the difference between the actual sound value and the target sound value, so as to achieve closed-loop control of the target sound value and improve the sound simulation effect.

[0025] In a possible implementation, the electronic device further includes a vibration detector, which is coupled to the driving module and is used to detect the vibration generated by the sound and vibration components, and transmit the detection result to the driving module. By setting the vibration detector in the electronic device, the actual vibration value generated by the sound and vibration components can be detected in real time, and the driving signal can be adjusted in real time according to the difference between the actual vibration value and the target vibration value, so as to achieve closed-loop control of the target vibration value and improve the vibration simulation effect.

[0026] In a possible implementation, the control variables include at least one of writing speed, writing pressure, pen tip type, paper type, volume, and vibration intensity. These control variables can further enhance the user experience.

[0027] In a possible implementation, the electronic device further includes a button, which is disposed outside the first housing and coupled to the driving module. In different usage environments, users may require different volume feedback. By providing a button on the electronic device, the volume can be directly adjusted, reducing the interaction requirements between the electronic device and the display product. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present application, the following is a brief introduction to the drawings required for use in some embodiments of the present application. Obviously, the drawings described below are only drawings of some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the products involved in the embodiments of the present application, the actual process of the method, the actual timing of the signal, etc.

[0029] Figure 1 A schematic diagram of the structure of an electronic device according to an embodiment of the present application;

[0030] Figure 2 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0031] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0032] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0033] Figure 5 A signal circuit diagram of an electronic device provided in an embodiment of the present application;

[0034] Figure 6 A signal circuit diagram of an electronic device provided in an embodiment of the present application;

[0035] Figure 7 A signal circuit diagram of an electronic device provided in an embodiment of the present application;

[0036] Fig. 8A A schematic diagram of the structure of a sound and vibration component provided in an embodiment of the present application;

[0037] Figure 8B A schematic diagram of the structure of another sound and vibration component provided in an embodiment of the present application;

[0038] Fig. 9 A schematic diagram of the structure of another sound and vibration component provided in an embodiment of the present application;

[0039] Fig.10 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0040] Fig.11 A signal circuit diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0042] In the following, the terms "second", "first", etc. are used only for convenience of description and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "second", "first", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0043] In the embodiments of the present application, directional terms such as "up", "down", "left" and "right" may be defined including but not limited to the orientation relative to the schematic placement of the components in the drawings. It should be understood that these directional terms may be relative concepts, which are used for relative description and clarification, and may change accordingly according to the change of the orientation of the components in the drawings.

[0044] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. In addition, the term "coupled" can be a direct electrical connection or an indirect electrical connection through an intermediate medium. The term "contact" can be a direct contact or an indirect contact through an intermediate medium.

[0045] In the embodiments of the present application, "and / or" describes the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B may be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0046] An embodiment of the present application provides an electronic device, which is, for example, an electronic device with a sound and vibration function. For example, the electronic device is a stylus, a touch pen, etc. Of course, the electronic device can also be an electronic device with a display function. When the stylus writes on the display product, the display product emits a sound and generates vibration.

[0047] The embodiments of the present application do not impose any special restrictions on the specific form of the electronic device, and an electronic device being a stylus is used as an example for illustration.

[0048] As a common input device, the stylus pen can easily realize the character input (such as writing and drawing) function of display products (such as tablets, TVs, mobile phones, etc.) on the one hand, and can also be used as a mouse on the other hand, so it has broad application prospects and good product recognition. However, existing display products have problems such as stylus writing slippage, no paper-like particle touch, poor writing experience, and unsatisfactory handwriting control, which affect the user's writing experience. How to achieve a paper-like writing experience on display products is a problem that everyone is trying to solve.

[0049] In some writing pens, the vibration of the pen strokes is simulated by a motor, but there is only vibration information, lacking information about the writing sound, which makes the feeling thin and the experience unreal. In other writing pens, the writing sound is simulated by the speaker on the display product side, but there is only sound information, no vibration of writing particles, and the sound source does not move with the movement of the handwriting, so the listening effect is poor. In some other products, the writing experience is improved by attaching a paper-like film (such as Yise paper-like film) to the screen surface of the display product. However, the film will reduce the brightness and color reproduction of the screen display.

[0050] Figure 1 A schematic diagram of the structure of an electronic device according to an embodiment of the present application.

[0051] In some embodiments, Figure 1 As shown, the electronic device includes a housing, a linear motor and a sound output unit arranged in the housing. The linear motor is used to generate vibration according to the writing speed, and the sound output unit is used to play sound according to the writing speed.

[0052] In this way, the electronic device can generate vibrations to simulate the vibration of writing particles. The electronic device can also emit sound to simulate the sound of writing. However, when the writing speed is fixed, the sound played by the sound output unit is fixed. However, when writing on paper, even if the writing speed remains unchanged, the sound will change due to changes in the particle size and thickness of the paper. Therefore Figure 1 The electronic devices shown still do not provide a realistic experience and the user experience is poor.

[0053] Figure 2 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0054] An embodiment of the present application provides an electronic device, which is, for example, a writing pen. Figure 2 As shown, the electronic device comprises a first housing 10, a driving module 20 and a sound and vibration component 30. The first housing 10 has an accommodating cavity inside, and the driving module 20 and the sound and vibration component 30 are both arranged in the accommodating cavity.

[0055] In some embodiments, Figure 2As shown, the first housing 10 is a segmented structure. The first housing 10 includes a pen tip 11, a pen body 12 and a connecting portion 13, and the pen tip 11 and the pen body 12 are connected by the connecting portion 13; the pen tip 11 is the use end of the electronic device, and the pen body 12 includes a receiving cavity.

[0056] The connecting portion 13 may be an integral structure with the pen tip 11 , the connecting portion 13 may be an integral structure with the pen body 12 , the connecting portion 13 may be an integral structure with both the pen tip 11 and the pen body 12 , or the connecting portion may not be an integral structure with either the pen tip 11 or the pen body 12 .

[0057] For example, the side of the pen tip 11 facing the pen body 12 and the side of the pen body 12 facing the pen tip 11 are both larger than the cross-sectional area of ​​the connecting portion 13 along the direction perpendicular to the length of the electronic device. Then, the side of the pen tip 11 facing the pen body 12 and the side of the pen body 12 facing the pen tip 11 are not completely covered by the connecting portion 13. The side of the pen tip 11 facing the pen body 12 and the side of the pen body 12 facing the pen tip 11 can be equal, or they can be unequal.

[0058] The pen tip 11 may be a hollow structure or a solid structure. Similarly, the connecting portion 13 may be a hollow structure or a solid structure. In addition, the connecting portion 13 and the pen tip 11 may be a connected structure or a separated structure. Similarly, the connecting portion 13 and the pen body 12 may be a connected structure or a separated structure.

[0059] In some other embodiments, the first housing 10 is an integrated structure, that is, the pen tip and the pen body are an integrated structure.

[0060] The material of the first shell 10 is not limited in the embodiment of the present application. The first shell 10 can be made of plastic, metal, etc.

[0061] The driving module 20 is used to receive the control variables and output a driving signal according to the control variables to drive the sound and vibration component 30 to make sound and vibrate. For example, the driving signal output by the driving module 20 is affected by one or more of the control variables such as writing speed, writing pressure, pen tip type (brush, pencil, pen), paper type, volume, vibration intensity, etc.

[0062] The sound and vibration component 30 is fixedly connected to the first housing and coupled to the driving module 20, and is used to receive the driving signal output by the driving module 20. The sound and vibration component 30 is used to emit sound and generate vibration under the drive of the driving module.

[0063] In some embodiments, the electronic device includes a bracket, the sound and vibration component 30 is disposed on the bracket, and the bracket is fixedly connected to the first shell 10 .

[0064] In other embodiments, the sound and vibration component 30 is fixed on the inner wall of the first shell 10 .

[0065] Then, the electronic device provided in the embodiment of the present application can generate vibration to simulate the vibration of writing particles. The electronic device can also emit sound to simulate the sound of writing.

[0066] In the embodiment of the present application, under the same control variables, the sound emitted by the sound and the vibration component 30 are random in the time domain. That is to say, there is no fixed pattern in the time domain between the sound and the sound emitted by the vibration component 30, and it is random. For example, even if the control variables received by the driving module 20 are the same, the sound emitted by the sound and the vibration component 30 may be the same or different. And when the control variables are the same, there is no pattern to follow whether the sound emitted by the sound and the vibration component 30 are the same, and it is random.

[0067] The time domain refers to describing the relationship between physical signals (such as sound intensity or vibration intensity) and time.

[0068] In some embodiments, the frequency of the sound emitted by the sound and vibration component 30 has a distribution characteristic, and the frequency of the sound emitted by the sound and vibration component 30 is controlled by the driving signal emitted by the driving module 20. The driving signal emitted by the driving module 20 to the sound and vibration component 30 has a fixed frequency, and the frequency of the sound emitted by the sound and vibration component 30 is fixed, but the amplitude of the sound emitted by the sound and vibration component 30 is random.

[0069] In some embodiments, the frequency of the vibration generated by the sound and vibration component 30 has a distribution characteristic, and the frequency of the vibration generated by the sound and vibration component 30 is controlled by the driving signal sent by the driving module 20. The frequency of the driving signal sent by the driving module 20 to the sound and vibration component 30 is fixed, and the frequency of the vibration generated by the sound and vibration component 30 is fixed, but the amplitude of the vibration generated by the sound and vibration component 30 is random. For example, when the control variable remains unchanged, the sound emitted by the sound and vibration component 30 is continuously detected for a period of time, and the sound pressure waveform along the time axis direction can be obtained. During the detection time when the control variable remains unchanged, due to the randomness of the sound, the sound pressure waveform is an irregular waveform.

[0070] Similarly, when the control variables remain unchanged, the vibration generated by the sound and vibration component 30 is continuously detected for a period of time, and a vibration waveform along the time axis direction can be obtained. During the detection time when the control variables remain unchanged, the vibration waveform is an irregular waveform because the vibration is random. The vibration waveform can be, for example, one or more of a displacement waveform, a velocity waveform, and an acceleration waveform.

[0071] Based on this, the electronic device provided by the embodiment of the present application is provided with a driving module 20 inside, and the sound and vibration component 30 can generate vibration under the drive of the driving module 20, so that the electronic device can simulate the vibration of writing particles. The sound and vibration component 30 can also emit sound under the drive of the driving module 20, so that the electronic device can simulate the writing sound. On this basis, the sound and / or vibration emitted by the sound and vibration component 30 are random in the time domain, so even if the use state of the electronic device remains unchanged (the control variable remains unchanged), the sound emitted by the sound and vibration component 30 is also variable, not static. Similar to writing on paper, even if the writing state remains unchanged, the friction sound and roughness will still change due to changes in paper granularity and paper thickness. Therefore, the electronic device provided by the embodiment of the present application is provided with randomness in the case of the same limiting conditions, and the use experience is more real, and the experience is good.

[0072] In some embodiments, the driving module 20 is specifically used to receive the first control variable in the first time period t1 and output a first driving signal according to the first control variable. The sound and vibration component 30 is specifically used to emit a first sound and generate a first vibration under the drive of the first driving signal output by the driving module 20.

[0073] The driving module 20 is also specifically used to receive the second control variable in the second period t2 and output a second driving signal according to the second control variable. The sound and vibration component 30 is also specifically used to emit a second sound and generate a second vibration under the drive of the second driving signal output by the driving module 20.

[0074] The first control variable and the second control variable may include one or more of the control variables such as writing speed, writing pressure, pen tip type (brush, pencil, pen), paper type, volume, vibration intensity, etc. The control variables applicable to writing pens in the related art are all optional control variables in the embodiments of the present application. The driving signal output by the driving module 20 is affected by the control variables. For example, the amplitude and frequency distribution of the driving signal will be dynamically adjusted, thereby affecting the sound and vibration generated by the sound and vibration component 30.

[0075] In some embodiments, the first control variable and the second control variable are different.

[0076] For example, as long as one of the different control variables among writing speed, writing pressure, pen tip type, paper type, volume, and vibration intensity is different, it is a difference in the embodiments of the present application.

[0077] Then, the first drive signal and the second drive signal may have different frequencies and amplitudes. The sound pressure waveform of the first sound is different from the sound pressure waveform of the second sound, and the vibration waveform of the first vibration is different from the vibration waveform of the second vibration.

[0078] It can also be understood that when the electronic device receives different control variables, the driving signal generated by the driving module 20 is different, the sound emitted by the sound and vibration component 30 is different, and the vibration generated is also different.

[0079] In this way, electronic devices can simulate the changes in sound and vibration caused by changes in factors such as pressure and writing speed during actual writing. The sound and vibration emitted by electronic devices are real and varied, providing a better experience.

[0080] In other embodiments, the first control variable is the same as the second control variable.

[0081] For example, the same writing speed, the same writing pressure, the same pen tip type, the same paper type, the same volume, the same vibration intensity, etc.

[0082] Then, the first drive signal and the second drive signal are still different. For example, the waveforms of the first drive signal and the second drive signal may be different. For example, the frequencies of the first drive signal and the second drive signal are the same, but the amplitudes vary differently. The drive module 20 may receive the same control variable but output different drive signals through a software algorithm. The specific implementation method may refer to the software algorithm in the related art that receives the same signal but outputs different signals, and the embodiments of the present application are not limited thereto.

[0083] For example, when the driving module 20 receives the same first control variable and second control variable, the sound pressure waveform of the first sound and the sound pressure waveform of the second sound output by the sound and vibration component 30 are different.

[0084] For example, when the driving module 20 receives the same first control variable and second control variable, the vibration waveform of the first vibration output by the sound and vibration component 30 is different from the vibration waveform of the second vibration.

[0085] It can also be understood that during the writing process, even if the electronic device receives the same control variable at different time periods, the driving signal generated by the driving module 20 may be different. Then, the sound pressure waveforms of the sound emitted by the sound-generating and vibration components 30 may also be different, and the sounds heard by the user may also be different. The vibration waveforms of the vibrations generated by the sound-generating and vibration components 30 may also be different, and the vibrations felt by the user may also be different.

[0086] In this way, even if the use state of the electronic device remains unchanged, the sound and / or vibration generated by the sound and vibration component 30 is variable and not constant. Similar to writing on paper, even if the writing state remains unchanged, the friction sound and roughness will still change due to changes in paper granularity and paper thickness. Therefore, the experience of the electronic device provided by the embodiment of the present application is more realistic and the user experience is better.

[0087] In some embodiments, the electronic device has a user end (such as the pen tip 11), and the sound and vibration component 30 is disposed near the user end. For example, the sound and vibration component 30 is disposed near the position of the hand holding.

[0088] It is explained here that the "close" in the embodiment of the present application is an interface divided by the center line of the electronic device. For example, the area between the center line of the electronic device and the pen tip 11 is called the pen tip 11 close to the electronic device. The area between the center line of the electronic device and the pen tail is called the pen tail close to the electronic device.

[0089] Since the sound and vibration are both transmitted from the user end when writing on paper, therefore, arranging the sound and vibration component 30 close to the user end can better match the friction sound and vibration feeling of simulating writing.

[0090] In some embodiments, Figure 2 As shown, the electronic device also includes a sound output channel, which is connected to the sound and vibration component 30.

[0091] When laying out the components inside the electronic device, reserving a sound outlet channel can reduce sound loss. Moreover, when vibrating and making sounds, sufficient air gaps need to be left so that the sound can be effectively transmitted. Then, there should be a sound outlet channel (that is, an air gap) between the sound-generating and vibrating component 30 and the sound outlet 14 so that the sound can be transmitted. Therefore, when laying out the components inside the electronic device, a sound outlet channel should be reserved to reduce sound loss. Of course, the sound outlet channel can be a straight channel or a curved channel. The sound outlet channel can go around the first shell 10, or it can be just one path, Figure 2 The sound output channel indicated by the dotted line is for reference only.

[0092] In some embodiments, the first housing 10 includes a sound outlet 14, which is connected to the sound outlet channel and is located between the user end and the sound and vibration component 30. For example, the electronic device is a pen, and the sound outlet 14 is arranged near the pen tip 11 of the pen.

[0093] For example, the first housing 10 includes a pen tip 11 and a pen body 12 , and the pen body 12 has a sound outlet 14 in an area not blocked by the connecting portion 13 .

[0094] The sound outlet 14 can be arranged around the connecting portion 13, or can be a plurality of discontinuous openings. The sound outlet 14 can be strip-shaped, hole-shaped, or the like.

[0095] In some embodiments, the sound and vibration component 30 is disposed near the pen tip 11 .

[0096] When writing on paper, the sound and vibration are transmitted from the pen tip 11, and the position of the hand is also close to the side of the pen tip 11. Therefore, the sound and vibration component 30 is arranged close to the pen tip 11, which can better simulate the friction sound and vibration feeling of writing.

[0097] The following is a schematic illustration of the manner in which the electronic device receives the control variable.

[0098] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0099] Regarding the method of obtaining writing pressure, in some embodiments, such as Figure 3 As shown, the electronic device further includes a pressure sensor 40 , which is disposed in the accommodating cavity and coupled to the driving module 20 .

[0100] The pressure sensor 40 is used to detect writing pressure and feed back the detection result as a control variable to the driving module 20. For example, the pressure sensor 20 is arranged close to the pen tip 11 to improve the accuracy of pressure detection.

[0101] The embodiment of the present application does not limit the structure of the pressure sensor 40 , and all pressure sensors in related technologies are applicable to the embodiment of the present application.

[0102] Regarding the method of acquiring the writing speed, in some embodiments, the electronic device further includes a speed sensor, which is disposed in the accommodating cavity and coupled to the driving module 20 .

[0103] The speed sensor is used to detect the writing speed and transmit the detection result as a control variable to the driving module 20. For example, the speed sensor is arranged close to the pen tip 11 to improve the accuracy of pressure detection.

[0104] In some other embodiments, in some embodiments, the electronic device further includes an acceleration sensor, the acceleration sensor is disposed in the accommodating cavity, and the acceleration sensor is coupled to the driving module 20 .

[0105] The acceleration sensor is used to detect the writing speed and transmit the detection result as a control variable to the driving module 20. For example, the acceleration sensor is arranged close to the pen tip 11 to improve the accuracy of pressure detection.

[0106] Currently, electronic devices may also include a velocity sensor and an acceleration sensor at the same time to improve the accuracy of the detected writing speed.

[0107] In some other embodiments, Figure 3 As shown, the electronic device further includes a wireless communication module 50 , which is disposed in the accommodating cavity and coupled to the driving module 20 .

[0108] The wireless communication module 50 may include, for example, a Bluetooth module, a Wi-Fi module, etc.

[0109] The writing speed can be obtained through a display product that cooperates with an electronic device. The display product and the electronic device establish a wireless connection through the wireless communication module 50, and the acquired writing speed is wirelessly transmitted to the wireless communication module 50 of the electronic device, and then fed back to the driving module 20 by the wireless communication module 50.

[0110] Regarding the method of obtaining the pen tip type, in some embodiments, such as Figure 3 As shown, the pen tip type can be selected and inputted by the display product side. After the display product determines the user's selection of the pen tip type, it is wirelessly transmitted to the wireless communication module 50 of the electronic device, and then fed back to the driving module 20 by the wireless communication module 50.

[0111] Regarding the method of obtaining the paper type, in some embodiments, such as Figure 3 As shown, the paper type can be selected and inputted by the display product side. After the display product determines the user's selection of the paper type, it is wirelessly transmitted to the wireless communication module 50 of the electronic device, and then fed back to the driving module 20 by the wireless communication module 50 .

[0112] Regarding the method of obtaining the volume, in some embodiments, the volume can be selected and inputted by the display product side. After the display product determines the user's selection of the volume, it is wirelessly transmitted to the wireless communication module 50 of the electronic device, and then fed back to the driving module 20 by the wireless communication module 50.

[0113] In other embodiments, Figure 3 As shown, the electronic device further includes a button 60, which is disposed outside the first housing 10 and is coupled to the driving module 20. The button 60 can adjust the volume of the electronic device and feed back the adjustment result to the driving module 20.

[0114] The button 60 in the embodiment of the present application may be a physical button or a touch button, which is not limited in the embodiment of the present application.

[0115] In different usage environments, users may require different volume feedback. By setting a button 60 on the electronic device, the volume can be directly adjusted, reducing the interaction requirements between the electronic device and the display product.

[0116] Regarding the acquisition method of vibration intensity, in some embodiments, the vibration intensity can be selected and inputted by the display product side. After the display product determines the user's selection of vibration intensity, it is wirelessly transmitted to the wireless communication module 50 of the electronic device, and then fed back to the driving module 20 by the wireless communication module 50.

[0117] In other embodiments, Figure 3 As shown, the electronic device further includes a button 60, which is disposed outside the first housing 10 and is coupled to the driving module 20. The button 60 can adjust the vibration intensity of the electronic device and feed back the adjustment result to the driving module 20.

[0118] The button 60 in the embodiment of the present application may be a physical button or a touch button, which is not limited in the embodiment of the present application.

[0119] The button for adjusting the volume and the button for adjusting the vibration intensity may be the same button, or they may be different buttons. In the embodiment of the present application, the example in which the two are the same button is used for illustration.

[0120] In different usage environments, users may require feedback of different volumes. By providing a button 60 on the electronic device, the vibration intensity can be directly adjusted, reducing the interaction requirements between the electronic device and the display product.

[0121] Regarding the way in which the sound-generating and vibration component 30 generates sound in the embodiments of the present application, in some embodiments, the sound-generating and vibration component 30 is used to generate sound by vibration under the drive of a driving module.

[0122] That is to say, in the electronic device provided in the embodiment of the present application, the sound and vibration component 30 is driven by the driving module 20 to emit sound in real time through its own vibration, without playing a pre-stored audio file.

[0123] In this way, the sound emitted by the sound-generating and vibrating component 30 is more closely matched with the control variable, the sound is more realistic and varied, and the experience is better.

[0124] In some embodiments, the frequency of the sound emitted by the sound and vibration component 30 is greater than or equal to 1000 Hz, and the frequency of the sound emitted is in the medium and high frequency bands to which the user's ears are more sensitive. The frequency of the vibration generated by the sound and vibration component 30 is less than 1000 Hz, and the frequency of the vibration generated is in the low frequency band to which the user's fingers are more sensitive.

[0125] Of course, the embodiment of the present application does not limit the frequency band of the sound emitted by the sound-emitting and vibration component 30 and the frequency band of the vibration generated. The frequency band of the sound emitted can be heard by the user's ears, and the frequency band of the vibration generated can be felt by the user's fingers.

[0126] By controlling the frequency band of vibration, it can be realized that whether the sound-generating and vibration component 30 generates sound or vibration, the structure is simple and the cost is low.

[0127] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0128] In some embodiments, Figure 4 As shown, the sound and vibration component 30 includes a vibration device 31 and a sound device 32, and the vibration device 31 and the sound device 32 are two independent devices.

[0129] By way of example, the vibration device 31 includes a linear motor, a piezoelectric motor, etc., and the sound generating device 32 includes a speaker, a buzzer, etc.

[0130] In some embodiments, the vibration device 31 and the sound device 32 are arranged on the side of the driving module 20 facing the user end. For example, the sound device 32 is arranged on the side of the vibration device 31 facing the user end. There is a sound outlet channel between the sound device 32 and the first shell 10, and the sound outlet channel is connected to the sound outlet 14 to ensure that the sound emitted by the sound device 31 is transmitted through the sound outlet channel and the sound attenuation is small. The vibration device 31 is arranged at the position of the hand to better feel the vibration.

[0131] The driving module 20 is used to output a vibration driving signal to drive the vibration device 31 to generate vibration. The driving module 20 is used to output a sound driving signal to drive the sound device 32 to generate sound.

[0132] For example, the driving module 20 includes an output terminal, which first outputs a sound driving signal and then outputs a vibration driving signal.

[0133] Figure 5 A signal circuit diagram of an electronic device provided in an embodiment of the present application.

[0134] Or, for example, Figure 5 As shown, the driving module 20 includes a first output terminal O1 and a second output terminal O2 , the vibration device 31 is coupled to the first output terminal O1 , and the sound device 32 is coupled to the second output terminal O2 .

[0135] The driving module 20 outputs a vibration driving signal through the first output terminal O1 to drive the vibration device 31 to vibrate. The driving module 20 outputs a sound driving signal through the second output terminal O2 to drive the sound device 32 to make a sound. The driving module 20 may include two submodules, one of which outputs a vibration driving signal from the first output terminal O1 and the other outputs a sound driving signal from the second output terminal O2.

[0136] In some embodiments, the time difference between the start time of the vibration drive signal and the start time of the sound drive signal is less than or equal to 50ms. For example, the time difference between the start time of the vibration drive signal and the start time of the sound drive signal is 45ms, 40ms, 35ms, 30ms, 25ms, 20ms, 15ms, 10ms, 5ms, 0ms, etc.

[0137] In some embodiments, the time difference between the cut-off time of the vibration drive signal and the cut-off time of the sound drive signal is less than or equal to 50ms. For example, the time difference between the cut-off time of the vibration drive signal and the cut-off time of the sound drive signal is 45ms, 40ms, 35ms, 30ms, 25ms, 20ms, 15ms, 10ms, 5ms, 0ms, etc.

[0138] In the embodiment of the present application, the start and end time difference between the vibration drive signal and the sound drive signal is controlled within 50ms, which can improve the simultaneity of starting the vibration device 31 and the sound device 32, so that the vibration generated by the vibration device 31 and the sound emitted by the sound device 32 are more matched with the control variables, thereby improving the user experience.

[0139] In some embodiments, the time difference between the start time of the sound and vibration component 30 emitting sound and the start time of the sound and vibration component 30 generating vibration is less than or equal to 50 ms.

[0140] For example, the time difference between the start time of the sound device 32 emitting sound and the start time of the vibration device 31 generating vibration is less than or equal to 50ms. For example, the time difference between the start time of the sound device 32 emitting sound and the start time of the vibration device 31 generating vibration is 45ms, 40ms, 35ms, 30ms, 25ms, 20ms, 15ms, 10ms, 5ms, 0ms, etc.

[0141] In some embodiments, the time difference between the cut-off time when the sound and vibration component 30 emits sound and the cut-off time when the sound and vibration component 30 generates vibration is less than or equal to 50 ms.

[0142] For example, the time difference between the cut-off time when the sound-generating device 32 generates sound and the cut-off time when the vibration device 31 generates vibration is less than or equal to 50ms. For example, the time difference between the cut-off time when the sound-generating device 32 generates sound and the cut-off time when the vibration device 31 generates vibration is 45ms, 40ms, 35ms, 30ms, 25ms, 20ms, 15ms, 10ms, 5ms, 0ms, etc.

[0143] In the embodiment of the present application, the start and end time difference between the sound emitted by the sound-generating device 32 and the vibration generated by the vibration device 31 is controlled within 50ms, which can improve the simultaneity of starting the vibration device 31 and the sound-generating device 32, so that the vibration generated by the vibration device 31 and the sound emitted by the sound-generating device 32 are more matched with the control variables, thereby improving the user experience.

[0144] Figure 6 A signal circuit diagram of an electronic device provided in an embodiment of the present application.

[0145] In some embodiments, Figure 6 As shown, the electronic device further includes a low-pass filter circuit 61 and a high-pass filter circuit 62 .

[0146] The driving module 20 includes a third output terminal O3, a low-pass filter circuit 61 coupled between the third output terminal O3 and the vibration device 31, and the low-pass filter circuit 61 is used to pass signals less than a set frequency. A high-pass filter circuit 62 is coupled between the third output terminal O3 and the sound generating device 32, and the high-pass filter circuit 62 is used to pass signals greater than or equal to the set frequency.

[0147] For example, the frequency band of the driving signal output by the driving module 20 is 0Hz-20000Hz, and the set frequency is 1000Hz. Then, the low-pass filter circuit 61 is used to pass the driving signal with a frequency band of 0Hz-1000Hz (excluding 1000Hz), filter out the driving signal with a frequency band of 1000Hz-20000Hz, and use this part of the driving signal as a vibration driving signal. The high-pass filter circuit 62 is used to pass the driving signal with a frequency band of 1000Hz-20000Hz, filter out the driving signal with a frequency band of 0Hz-1000Hz (excluding 1000Hz), and use this part of the driving signal as a sounding driving signal. Of course, the embodiment of the present application does not limit the value of the set frequency, and 1000Hz is only an illustration.

[0148] In some embodiments, the low-pass filter circuit 61 and the high-pass filter circuit 62 may be integrated in the driving module 20. Of course, the low-pass filter circuit 61 and the high-pass filter circuit 62 may also be separately provided from the driving module 20.

[0149] Regarding the structure of the low-pass filter circuit 61 , in some embodiments, the low-pass filter circuit 61 may be, for example, a low-pass filter, a follower circuit, or a detector.

[0150] Regarding the structure of the high-pass filter circuit 62 , in some embodiments, the high-pass filter circuit 62 may be, for example, a high-pass filter, a follower circuit, or a detector.

[0151] By making the driving module 20 output a wide-band waveform covering the vibration drive signal frequency band (e.g., 0Hz-1000Hz) and the sound drive signal frequency band (e.g., 1000Hz-20000Hz), and then dividing it into two, one is transmitted to the vibration device 31 through the low-pass filter circuit 61, and the other is transmitted to the sound device 32 through the high-pass filter circuit 62. Then, the vibration drive signal transmitted to the vibration device 31 and the generation drive signal transmitted to the sound device 32 are obtained by filtering from the same signal, the vibration drive signal and the generation drive signal start and end almost at the same time, and the start time difference and end time difference of the vibration drive signal and the generation drive signal can be 0 in theory, so that the vibration device 31 and the sound device 32 can be started at the same time, thereby improving the user experience.

[0152] Figure 7 A signal circuit diagram of an electronic device provided in an embodiment of the present application.

[0153] In other embodiments, Figure 7 As shown, the sound-generating and vibration components 30 are an integrated structure, and the vibration for sound generation is achieved by one element.

[0154] The driving module 20 includes a third output terminal O3. The driving signal output by the third output terminal O3 is a wide-band waveform covering the vibration driving signal frequency band (for example, 0 Hz-1000 Hz) and the sound driving signal frequency band (for example, 1000 Hz-20000 Hz). The sounding and vibration component 30 vibrates when driven by the vibration driving signal and makes a sound when driven by the sound driving signal.

[0155] Fig. 8A and Figure 8B A schematic diagram of the structure of a sound-generating and vibration component provided in an embodiment of the present application.

[0156] In some embodiments, Fig. 8A As shown, the sound and vibration component 30 includes a second shell 301 and a driving member 302 , a cantilever 303 and a mass block 304 arranged in the second shell 301 .

[0157] The second housing 301 includes an opening 311, the driving member 302 is disposed near the opening 311, the mass block 304 is located on the side of the cantilever 303 away from the opening 311, and there is a gap between the mass block 304 and the second housing 301. One end of the cantilever 303 is connected to the second housing 32, and the other end of the cantilever 303 is connected to the mass block 304.

[0158] The material of the second shell 301 is, for example, an insulating material. The opening 311 on the second shell 301 is used to transmit sound. There is an air gap between the driving member 302 and the second shell for transmitting sound.

[0159] The driving member 302 is used to generate vibration under the drive of the driving module 20 , and provide a vibration driving force for the cantilever 303 to drive the cantilever 303 to vibrate.

[0160] For example, Fig. 8A As shown, the driving member 302 includes an upper electrode 321, a lower electrode 322 and a piezoelectric film 323 located between the upper electrode 321 and the lower electrode 322. The upper electrode 321 receives the driving signal output by the driving module 20, and the lower electrode 322 is grounded. The piezoelectric film 323 generates a vibration driving force under the drive of the electric field formed by the upper electrode 321 and the lower electrode 322, thereby driving the cantilever 303 to move up and down to make a sound externally, and at the same time, the mass block 304 vibrates up and down to generate vibration acceleration.

[0161] The driving member 302 is disposed on the surface of the cantilever 303 facing the opening 311 . The driving member 302 and the second housing 301 may be connected or have a gap therebetween.

[0162] Or, for example, Figure 8B As shown, the driving member 302 includes a coil, which is fixed in the second housing 301. The coil receives the driving signal output by the driving module 20, generates an alternating magnetic field, thereby generating an alternating electromagnetic force on the mass block 304, thereby driving the cantilever 303 to move up and down to make a sound, and at the same time, the mass block 304 vibrates up and down to generate vibration acceleration. At this time, the mass block 304 is a permanent magnet. Alternatively, the sounding and vibrating component 30 also includes a permanent magnet, and the permanent magnet and the mass block 304 are both fixedly connected to the cantilever 303.

[0163] The cantilever 303 includes a first side and a second side opposite to each other, the first side of the cantilever 303 is fixedly connected to the second shell 301, and the second side of the cantilever 303 is fixedly connected to the mass block 304. In this way, when the mass block 304 and the cantilever 303 vibrate together, the vibration can be transmitted through the second shell 301. In some embodiments, the cantilever 303 also includes a third side and a fourth side opposite to each other, the third side and the fourth side intersect with the first side, and are not connected to the second shell 301. Then, only the first side of the cantilever 303 is fixedly connected to the second shell 301, which can increase the vibration amplitude of the cantilever 303 and emit high-frequency sound.

[0164] In some embodiments, the mass block 304 and the cantilever 303 may be an integrally formed structure, or the mass block 304 and the cantilever 303 may be separate structures. The mass block 304 is fixedly connected to the cantilever 303 and is not connected to the second housing 301. The mass block 304 is disposed at the end of the cantilever 303 to increase the swing amplitude of the cantilever 303.

[0165] The sound and vibration component 30 provided in the embodiment of the present application drives the cantilever 303 to swing by the vibration of the driving member 302. The driving member 302 can drive the cantilever 303 to generate a low-order vibration frequency (for example, <1000Hz) for generating vibration under the drive of the vibration driving signal output by the driving module 20. The driving member 302 can also drive the cantilever 303 to generate a high-order vibration frequency (for example, ≥1000Hz) for generating sound under the drive of the sound driving signal output by the driving module 20. A sound and vibration component 30 can achieve sound and vibration at the same time, and the structure in the electronic device is simple and easy to layout.

[0166] Fig. 9 A schematic diagram of the structure of a sound-generating and vibration component provided in an embodiment of the present application.

[0167] In some embodiments, Fig. 9 As shown, the sound and vibration component 30 further includes a damping member 305, which is disposed on the inner surface of the second housing 32 opposite to the opening 311. That is, the damping member 305 is located on the side of the cantilever 303 away from the opening 311, and is disposed on the inner surface of the second housing 32. The inner surface can be understood as the surface of the second housing 32 facing the cantilever 303.

[0168] For example, the damping member 305 may be disposed below the mass block 304 , and the damping member 305 and the mass block 304 may be in contact with each other or have a gap therebetween, which is not limited in the embodiment of the present application. Fig. 9 In the figure, a gap between the damping member 305 and the mass block 304 is taken as an example for illustration.

[0169] Alternatively, for example, the damping member 305 may also be disposed below the cantilever 303 , and the damping member 305 and the cantilever 303 may be in contact with each other or may have a gap therebetween.

[0170] The embodiment of the present application does not limit the size of the damping member 305. Fig. 9 The shape of the damping member 305 shown in FIG. 3 is only a schematic diagram.

[0171] By arranging the damping member 305 on the inner wall of the second shell 32 , on the one hand, a buffering effect can be achieved, and on the other hand, the bandwidth of the sound and vibration component 30 can be adjusted.

[0172] Fig.10 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Fig.11 A signal circuit diagram of an electronic device provided in an embodiment of the present application.

[0173] In some embodiments, Fig.10 As shown, the electronic device further includes a vibration detector 71 , which is coupled to the driving module 20 and is used to detect the vibration generated by the sound and vibration component 30 and transmit the detection result to the driving module 20 .

[0174] For example, Fig.11 As shown, the vibration detector 71 may be, for example, a velocity detector or an acceleration detector, and the vibration detector 71 is used to detect the vibration actually generated by the vibration device 31 in the electronic device, and feed back the detection result to the driving module 20. In this case, the actual vibration value detected by the vibration detector 71 is also used as a control variable of the driving module 20. The driving module 20 adjusts the output driving signal according to the difference between the actual vibration value and the target vibration value so that the actual vibration value is equal to the target vibration value.

[0175] For example, the vibration detector 71 is disposed in the accommodating cavity and is disposed close to the sound and vibration component 30. For example, the vibration detector 71 is disposed close to the position where the user holds the hand to improve the accuracy of the detection result.

[0176] By setting up a vibration detector 71 in the electronic device, the actual vibration value generated by the sound and vibration component 30 can be detected in real time, and the driving signal can be adjusted in real time according to the difference between the actual vibration value and the target vibration value to achieve closed-loop control of the target vibration value and improve the vibration simulation effect.

[0177] In some embodiments, Fig.10 As shown, the electronic device further includes a sound detector 72 , which is coupled to the driving module 20 and is used to detect the sound emitted by the sound and vibration component 30 and transmit the detection result to the driving module 20 .

[0178] For example, Fig.11 As shown, the sound detector 72 may be, for example, a microphone, and the sound detector 72 is used to detect the sound actually emitted by the sound-generating device 32 in the electronic device, and feed the detection result back to the driving module 20. In this case, the actual sound value detected by the sound detector 72 is also used as a control variable of the driving module 20. The driving module 20 adjusts the output driving signal according to the difference between the actual sound value and the target sound value, so that the actual sound value is equal to the target sound value.

[0179] For example, the sound detector 72 is disposed in the accommodating cavity, away from the use end of the electronic device. For example, the sound detector 72 is disposed at the rear of the electronic device.

[0180] Alternatively, for example, the sound detector 72 is disposed outside the first housing 10 so that the sound detector 72 detects the actual sound value of the sound-generating device 32 heard from outside the electronic device. Since the sound to be heard is not the sound emitted by the sound-generating device 32, but the sound transmitted to the outside of the electronic device. Therefore, by disposing the sound detector 72 outside the electronic device, the actual sound value detected is closer to the sound to be heard, and the detection result is more accurate.

[0181] By setting up a sound detector 72 in the electronic device, the actual sound value emitted by the sound-generating and vibration component 30 can be detected in real time, and the driving signal can be adjusted in real time according to the difference between the actual sound value and the target sound value to achieve closed-loop control of the target sound value and improve the sound simulation effect.

[0182] In some embodiments, the electronic device also includes a mainboard, and one or more of the driving module 20, the pressure sensor 40, the wireless communication module 50, the low-pass filter circuit 61, the high-pass filter circuit 62, the vibration detector 71, and the sound detector 72 are arranged on the mainboard.

[0183] In some embodiments, the electronic device also includes a power supply, which is used to power one or more of the driving module 20, the pressure sensor 40, the wireless communication module 50, the low-pass filter circuit 61, the high-pass filter circuit 62, the vibration detector 71, and the sound detector 72.

[0184] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An electronic device, characterized in that: include: A first shell having a receiving cavity therein; A driving module, disposed in the accommodating cavity, for receiving a control variable and outputting a driving signal according to the control variable; A sound and vibration component is located in the accommodating cavity and coupled to the driving module; the sound and vibration component is used to emit sound and generate vibration under the drive of the driving signal; Wherein, under the same control variable, the sound and / or vibration emitted by the sound and vibration component is random in the time domain.

2. The electronic device according to claim 1, characterized in that: The driving module is specifically used to receive a first control variable in a first time period, and output a first driving signal according to the first control variable, and the sound and vibration component is specifically used to emit a first sound and generate a first vibration under the drive of the first driving signal; The driving module is further specifically used to receive a second control variable in a second time period, and output a second driving signal according to the second control variable, and the sound and vibration component is further specifically used to emit a second sound and generate a second vibration under the drive of the second driving signal; The first control variable is the same as the second control variable, the sound pressure waveform of the first sound is different from the sound pressure waveform of the second sound, and / or the vibration waveform of the first vibration is different from the vibration waveform of the second vibration.

3. The electronic device according to claim 2, characterized in that: The first drive signal and the second drive signal are different.

4. The electronic device according to any one of claims 1 to 3, characterized in that: The sound and vibration component is used to generate sound through vibration under the drive of the driving module.

5. The electronic device according to any one of claims 1 to 4, characterized in that: The time difference between the start time of the sound and vibration component emitting sound and the start time of the sound and vibration component generating vibration is less than or equal to 50ms; and / or, The time difference between the cut-off time when the sound-generating and vibration component generates sound and the cut-off time when the sound-generating and vibration component generates vibration is less than or equal to 50ms.

6. The electronic device according to any one of claims 1 to 5, characterized in that: The sound and vibration components include a vibration device and a sound device; The driving module is used to output a vibration driving signal to drive the vibration device to generate vibration; and is also used to output a sound driving signal to drive the sound device to generate sound.

7. The electronic device according to claim 6, characterized in that: The driving module includes a first output terminal and a second output terminal, the vibration device is coupled to the first output terminal, and the sound generating device is coupled to the second output terminal.

8. The electronic device according to claim 6 or 7, characterized in that: The time difference between the start time of the vibration drive signal and the start time of the sound drive signal is less than or equal to 50ms; and / or, The time difference between the cut-off time of the vibration driving signal and the cut-off time of the sound driving signal is less than or equal to 50 ms.

9. The electronic device according to claim 6, characterized in that: The electronic device further comprises a low-pass filter circuit and a high-pass filter circuit; The low-pass filter circuit is coupled between the third output terminal of the driving module and the vibration device, and the low-pass filter circuit is used to pass signals with a frequency lower than a set frequency; The high-pass filter circuit is coupled between the third output terminal and the sound-generating device, and is used for passing signals greater than or equal to the set frequency.

10. The electronic device according to any one of claims 1 to 5, characterized in that: The sound and vibration component includes a second shell and a driving member, a cantilever and a mass block arranged in the second shell; The second shell includes an opening; the mass block is located on a side of the cantilever away from the opening, and there is a gap between the mass block and the second shell; The driving member is used to generate a vibration driving force under the drive of the driving module, and the driving member is arranged close to one side of the opening; One end of the cantilever is connected to the second shell, and the other end of the cantilever is connected to the mass block.

11. The electronic device according to claim 10, characterized in that: The sound and vibration component further includes a damping member disposed on an inner surface of the second housing opposite to the opening.

12. The electronic device according to any one of claims 1 to 11, characterized in that: The electronic device is a pen, and the sound-generating and vibration component is arranged close to the tip of the pen.

13. The electronic device according to any one of claims 1 to 12, characterized in that: The electronic device comprises a sound output channel, and the sound output channel is connected to the sound and vibration component.

14. The electronic device according to claim 13, characterized in that: The electronic device is a pen, the first shell includes a sound outlet, the sound outlet is communicated with the sound outlet channel, and the sound outlet is arranged close to the pen tip of the pen.

15. The electronic device according to claim 14, characterized in that: The first shell includes a pen tip, a pen body and a connecting part, the pen tip and the pen body are connected by the connecting part; the pen body has the accommodating cavity; the area of ​​the pen body not blocked by the connecting part has the sound outlet.

16. The electronic device according to any one of claims 1 to 15, characterized in that: The electronic device further comprises a sound detector, which is coupled to the driving module and is used for detecting the sound emitted by the sound-emitting and vibration component and transmitting the detection result to the driving module.

17. The electronic device according to any one of claims 1 to 16, characterized in that: The electronic device further comprises a vibration detector, which is coupled to the driving module and is used for detecting the vibration generated by the sound and vibration component and transmitting the detection result to the driving module.

18. The electronic device according to any one of claims 1 to 17, characterized in that: The control variables include at least one of writing speed, writing pressure, pen tip type, paper type, volume, and vibration intensity.

19. The electronic device according to any one of claims 1 to 18, characterized in that: The electronic device further includes a button, which is arranged outside the first shell and coupled to the driving module.

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