WO2024037084A1 - 电子设备、控制方法及计算机可读存储介质 - Google Patents
电子设备、控制方法及计算机可读存储介质 Download PDFInfo
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- WO2024037084A1 WO2024037084A1 PCT/CN2023/095359 CN2023095359W WO2024037084A1 WO 2024037084 A1 WO2024037084 A1 WO 2024037084A1 CN 2023095359 W CN2023095359 W CN 2023095359W WO 2024037084 A1 WO2024037084 A1 WO 2024037084A1
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- WIPO (PCT)
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- electronic device
- screen
- piezoelectric ceramic
- audio signal
- moving coil
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000000919 ceramic Substances 0.000 claims abstract description 143
- 230000005236 sound signal Effects 0.000 claims abstract description 65
- 238000004590 computer program Methods 0.000 claims description 14
- 230000015654 memory Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 7
- 230000004044 response Effects 0.000 description 7
- 230000003321 amplification Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Definitions
- the present application relates to screen sound technology, and in particular to an electronic device, a control method and a computer-readable storage medium.
- screen sound-generating electronic devices mostly use the deformation generated by the inverse piezoelectric effect of piezoelectric ceramics to drive screen deformation, thereby promoting air to produce sound and realizing the functions of earpieces and speakers. According to the frequency domain impedance characteristics of piezoelectric ceramics, its low frequency is far worse than traditional dynamic speakers even when driven at very high voltages.
- Embodiments of the present application provide an electronic device, a control method and a computer-readable storage medium.
- the electronic device in the embodiment of the present application includes a screen, a piezoelectric ceramic, and a moving coil actuator.
- the piezoelectric ceramic is connected to the screen, and the moving coil actuator is connected to the screen.
- the piezoelectric ceramics and the moving coil exciter can work at the same time.
- the piezoelectric ceramics are used to respond to the high-frequency part of the audio signal and push the screen to vibrate and produce sound.
- the dynamic coil exciter is used to respond to the low-frequency part of the audio signal and push the screen to vibrate and produce sound.
- the control method of the embodiment of the present application can be used in electronic equipment.
- the electronic equipment includes a screen, a piezoelectric ceramic and a moving coil actuator.
- the piezoelectric ceramic is connected to the screen, and the moving coil actuator is connected to the screen;
- the control method includes: when the electronic device is in the external amplifier mode, controlling the piezoelectric ceramic and the moving coil actuator to work simultaneously, and the piezoelectric ceramic is used to respond to the high-frequency part of the audio signal and push the The screen vibrates and produces sound, and the dynamic coil exciter is used to respond to the low-frequency part of the audio signal and push the screen to vibrate and produce sound.
- Electronic devices in embodiments of the present application include one or more processors and memories.
- the memory stores computer programs. When the computer program is executed by the processor, the steps of the control method described in the above embodiments are implemented.
- the computer-readable storage medium has a computer program stored thereon, and the program is processed by a processor. If executed, the steps of the control method described in the above embodiment are realized.
- Figure 1 is a schematic structural diagram of an electronic device according to certain embodiments of the present application.
- Figure 2 is a schematic flow chart of a control method in some embodiments of the present application.
- Figure 3 is a schematic diagram of the frequency response of piezoelectric ceramics and moving coil actuators
- Figure 4 is a schematic diagram of frequency response comparison of certain embodiments of the present application.
- Figure 5 is a schematic flowchart of a control method in some embodiments of the present application.
- Figure 6 is a partial circuit schematic diagram of an electronic device according to certain embodiments of the present application.
- FIGS 7 to 9 are schematic flow diagrams of control methods in certain embodiments of the present application.
- Figure 10 is a schematic diagram of an electronic device according to certain embodiments of the present application.
- first and second are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, features defined as “first” and “second” may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present application, “plurality” means two or more, unless otherwise explicitly and specifically limited.
- screen sound-generating electronic devices mostly use the deformation generated by the inverse piezoelectric effect of piezoelectric ceramics to drive screen deformation, thereby promoting air to produce sound and realizing the functions of earpieces and speakers.
- Using the inverse piezoelectric effect of piezoelectric ceramics to generate deformation to drive the screen to produce sound generally requires stacking of multiple layers of piezoelectric materials, which requires high process requirements.
- an electronic device 100 includes a screen 10 , a piezoelectric ceramic 22 and a moving coil actuator 32 .
- the piezoelectric ceramic 22 is connected to the screen 10
- the dynamic coil actuator 32 is connected to the screen 10 .
- the piezoelectric ceramic 22 is used to respond to the high-frequency part of the audio signal and push the screen 10 to vibrate and produce sound.
- the dynamic coil actuator 32 is used to It responds to the low-frequency part of the audio signal and drives the screen 10 to vibrate and produce sound.
- the control method of the embodiment of the present application can be used in an electronic device 100.
- the electronic device 100 includes a screen 10, a piezoelectric ceramic 22 and a moving coil actuator 32.
- the piezoelectric ceramic 22 is connected to the screen 10 and the moving coil actuator 32.
- Connect screen 10; control methods include:
- the piezoelectric ceramic 22 and the dynamic coil actuator 32 are controlled to work simultaneously.
- the piezoelectric ceramic 22 is used to respond to the high-frequency part of the audio signal and push the screen 10 to vibrate and produce sound.
- the dynamic coil actuator 32 is used to respond to the low frequency part of the audio signal and push the screen 10 to vibrate and produce sound.
- the piezoelectric ceramic 22 responds to high frequency and the dynamic coil exciter 32 responds to low frequency.
- the two complement each other and drive the screen 10 to vibrate and sound in the entire audio frequency domain, so that the external amplification effect is in the frequency domain. Wider and more balanced.
- the abscissa is frequency and the ordinate is frequency response value. It can be seen from Figure 3 that when piezoelectric ceramics are used alone, the frequency response is poor when the frequency is low; when the moving coil actuator is used alone, the frequency response is poor when the frequency is high. It can be seen from Figure 4 that using the technical solution of the present application, the frequency response of low frequency and high frequency is better. Whether the piezoelectric ceramic or moving coil exciter is used alone, or the traditional moving coil speaker is used alone, the technical solution of the present application is The frequency response is better, making the frequency range of the external amplification effect wider and more balanced.
- the electronic device 100 may include a smartphone, a tablet, a smart watch, a smart bracelet, and other devices, which are not specifically limited here.
- the electronic device 100 in the embodiment of the present application is explained by taking a smartphone as an example, which should not be understood as a limitation of the present application.
- the piezoelectric ceramic 22 can vibrate through deformation caused by the inverse piezoelectric effect, thereby driving the screen 10 to vibrate and produce sound.
- the principle of the dynamic coil actuator 32 is similar to that of a dynamic coil speaker. For example, the changing current passes through the coil to generate a changing magnetic field. The changing magnetic field interacts with the magnetic field of the original magnet to generate vibration, thereby driving the screen 10 to vibrate and produce sound.
- the electronic device 100 further includes a circuit board 40 , and the piezoelectric ceramic 22 and the moving coil actuator 32 can be disposed on the circuit board 40 and connected to the screen 10 respectively.
- the circuit board 40 may include a first circuit board 42 and a second circuit board 44.
- the first circuit board 42 may be a main board and is disposed close to the first end 12 of the screen 10, and the second circuit board 44 may be a small board and be close to the screen.
- the second end of 10 is set to 14.
- the piezoelectric ceramic 22 and the moving coil actuator 32 may both be disposed on the first circuit board 42, or one of the piezoelectric ceramic 22 and the moving coil actuator 32 may be disposed on the first circuit board 42. One is placed on the first circuit board 42 and the other is placed on the second circuit board 44 .
- the electronic device 100 also includes a middle frame 52.
- the middle frame 52 is disposed between the screen 10 and the circuit board 40.
- the middle frame 52 is provided with a through hole through which the piezoelectric ceramic 22 and the dynamic coil actuator 32 can pass to communicate with each other respectively.
- the screen 10 is connected such that the piezoelectric ceramics 22 and the dynamic actuator 32 are not in contact with the middle frame 52, which prevents the middle frame 52 from vibrating and causing sound to radiate around.
- the electronic device 100 also includes a battery 54 for powering the screen 10, the piezoelectric ceramic 22, the dynamic actuator 32, the circuit board 40, and the like.
- the electronic device 100 also includes a housing assembly 56 , in which the screen 10 , the piezoelectric ceramics 22 , the dynamic actuator 32 , the circuit board 40 , the middle frame 52 , the battery 54 , etc. can be accommodated.
- the part of the audio signal that is greater than the first preset frequency is determined as the high-frequency part, and the part of the audio signal that is less than the second preset frequency is determined as the low-frequency part.
- the first preset frequency may be smaller than the second preset frequency, the high frequency may refer to mid-high frequency, and the low frequency may refer to mid-low frequency. In this way, the high frequency part and the low frequency part may partially overlap, thereby avoiding audio signal loss.
- the first preset frequency may be 1800HZ
- the second preset frequency may be 2200HZ.
- the first preset frequency and the second preset frequency can be set in advance, or the first preset frequency and the second preset frequency can be determined according to the specifications of the piezoelectric ceramic 22 and the specifications of the moving coil actuator 32, There are no specific limitations here.
- the embodiment of the present application divides the frequency of the audio signal, and uses the better mid-low frequency thrust of the dynamic coil actuator 32 combined with the mid-to-high frequency ductility of the piezoelectric ceramic 22 to improve the overall sound amplification effect of the screen 10 .
- the piezoelectric ceramic 22 and the moving coil actuator 32 are driven simultaneously to drive the screen 10 to deform, thereby causing the screen 10 to vibrate up and down, pushing air and producing sound.
- the piezoelectric ceramic 22 and the dynamic exciter 32 are used together to achieve excellent external amplification performance in the entire audio frequency range.
- the piezoelectric ceramic 22 does not need to respond to the low frequency part.
- the moving coil actuator 32 does not need to respond to the high-frequency part, and the parts that are difficult to push by the piezoelectric ceramic 22 and the moving coil actuator 32 are filtered out or weakened, avoiding the frequency domain part with poor performance of the device itself. Therefore, there is no need to The large power drive greatly reduces the overall power consumption of the external amplifier.
- the electronic device 100 further includes a first filter and a second filter.
- the first filter is used to filter out the low-frequency part of the audio signal to obtain the high-frequency part of the audio signal and output it to the piezoelectric ceramic 22
- the second filter is used to filter out the high frequency part of the audio signal to obtain the low frequency part of the audio signal and output it to the moving coil exciter 32 .
- the electronic device 100 further includes a first filter and a second filter
- the control method further includes:
- the high frequency part and the low frequency part of the audio signal can be obtained through the first filter and the second filter.
- the audio signal can be divided by the first filter and the second filter.
- the low frequency of the piezoelectric ceramic 22 should be taken into consideration.
- the impedance is very large, and the low-frequency part can be filtered out or weakened through the first filter, leaving only the high-frequency part (mid- and high-frequency signals), so that the piezoelectric ceramics 22 can respond to the mid- and high-frequency signals of the audio signal and push the screen 10 to vibrate and sound; and the moving Due to the large high-frequency impedance and large performance attenuation, the coil exciter 32 can filter out or weaken the high-frequency part and retain only the low-frequency part (mid-low frequency signal), so that the moving coil exciter 32 can respond to the mid-low frequency signal of the audio signal and drive Screen 10 vibrates and sounds.
- the first filter and the second filter may be integrated in the controller 60 , and the controller 60 may be disposed on the circuit board 40 .
- the electronic device 100 when the electronic device 100 is in the earpiece mode, at least one of the piezoelectric ceramic 22 and the dynamic coil exciter 32 operates, and the piezoelectric ceramic 22 is used to respond to the audio signal and push the screen 10 to vibrate and produce sound, and/ Alternatively, the dynamic actuator 32 is used to respond to the audio signal and push the screen 10 to vibrate and produce sound.
- control method also includes:
- At least one of the piezoelectric ceramics 22 and the dynamic coil actuator 32 can be used to push the screen 10 to vibrate and produce sound.
- both the piezoelectric ceramic 22 and the dynamic actuator 32 can drive the screen 10 to vibrate and produce sound in the entire audio frequency domain. Therefore, the piezoelectric ceramic 22 or the dynamic actuator can be 32 alone responds to the entire audio signal to reduce power consumption; the piezoelectric ceramic 22 and the dynamic coil actuator 32 can also work together to respond to the entire audio signal, thereby increasing the loudness.
- the piezoelectric ceramic 22 can be used as a two-in-one external amplifier and earphone, and the dynamic coil exciter 32 can also be used as a two-in-one external amplifier and earphone, which are not specifically limited here.
- the electronic device 100 includes a first power amplifier 26 and a second power amplifier 36.
- the first power amplifier 26 is electrically connected to the piezoelectric ceramic 22 and is used to drive the piezoelectric ceramic 22 to work.
- the two power amplifiers 36 are electrically connected to the moving coil exciter 32 and are used to drive the moving coil exciter 32 to work.
- the first power amplifier 26 can be used to drive the piezoelectric ceramic 22 to work
- the second power amplifier 36 can be used to drive the moving coil actuator 32 to work.
- the first power amplifier 26 may be a high-voltage PA (Power Amplifier), and the high-voltage PA may drive the piezoelectric ceramic 22 to work based on the high-frequency part of the audio signal.
- the second power amplifier 36 may be It is a Smart PA, which can have functions such as temperature protection to facilitate circuit safety.
- the first power amplifier 26 and the second power amplifier 36 may also be other PAs, and are not specifically limited here.
- the electronic device 100 includes a controller 60 , the controller 60 is configured to control the first power amplifier 26 and the second power amplifier 36 to work simultaneously through serial bus addressing when the electronic device 100 is in the external amplifier mode, and controlling at least one of the first power amplifier 26 and the second power amplifier 36 to operate through the serial bus address when the electronic device 100 is in the handset mode.
- step 01 (controlling the piezoelectric ceramic 22 and the moving coil actuator 32 to work simultaneously when the electronic device 100 is in the external mode) includes:
- Step 04 controlling at least one of the piezoelectric ceramic 22 and the dynamic coil actuator 32 to work when the electronic device 100 is in the earphone mode) includes:
- 042 Control at least one of the first power amplifier 26 and the second power amplifier 36 to operate through the serial bus address when the electronic device 100 is in the handset mode.
- the piezoelectric ceramic 22 and/or the moving coil actuator 32 can be controlled to work according to the working mode of the electronic device 100 .
- the first power amplifier 26 and the second power amplifier 36 can be controlled to work simultaneously through serial bus (Inter-Integrated Circuit, I2C) address selection, so that the piezoelectric ceramic 22 Working simultaneously with the dynamic coil actuator 32 , the piezoelectric ceramic 22 responds to the high-frequency part of the audio signal and pushes the screen 10 to vibrate and make sounds.
- the dynamic coil actuator 32 responds to the low-frequency part of the audio signal and pushes the screen 10 to vibrate and make sounds.
- At least one of the first power amplifier 26 and the second power amplifier 36 can be controlled to work through serial bus address selection, and the piezoelectric ceramic 22 responds to the audio signal and pushes the screen 10 to vibrate and sound, and /Or, the dynamic actuator 32 responds to the audio signal and pushes the screen 10 to vibrate and produce sound.
- the audio signal can be transmitted to the first power amplifier 26 and the second power amplifier 36 through an integrated circuit built-in audio bus (Inter-IC Sound, I2S).
- I2S integrated circuit built-in audio bus
- the first power amplifier 26 and the second power amplifier 36 can be controlled to work simultaneously through serial bus address selection, and the high-frequency part of the audio signal can be transmitted through the built-in audio bus of the integrated circuit.
- the low frequency part of the audio signal is transmitted to the second power amplifier 36.
- at least one of the first power amplifier 26 and the second power amplifier 36 can be controlled to operate through serial bus address selection, and the entire audio signal can be transmitted to the first power amplifier through the integrated circuit built-in audio bus.
- amplifier 26 and a second power amplifier 36 are integrated circuit built-in audio bus.
- the screen 10 includes a first end 12 and a second end 14 opposite to each other, and the piezoelectric ceramic 22 and the moving coil actuator 32 are both disposed close to the first end 12 ; in the electronic device 100 When in handset mode, the piezoelectric ceramic At least one of the porcelain 22 and the moving coil exciter 32 operates.
- the piezoelectric ceramic 22 and the moving coil actuator 32 are both disposed close to the first end 12 , which facilitates space allocation within the electronic device 100 .
- the first end 12 may be the top end of the screen 10
- the second end 14 may be the bottom end of the screen 10 .
- the user When the electronic device 100 is in the earphone mode, the user usually puts his or her ear close to the top of the electronic device 100 , therefore, pressing the
- the electroceramic 22 and the moving coil exciter 32 are both disposed close to the first end 12 (relative to the second end 14, closer to the first end 12), which can meet the normal usage habits of users.
- the piezoelectric ceramic 22 and the dynamic actuator 32 are both disposed close to the first end 12.
- the piezoelectric ceramic 22 or the dynamic actuator 32 can respond to the entire audio signal alone to reduce power consumption; also It may be that the piezoelectric ceramic 22 and the dynamic actuator 32 work together to respond to the entire audio signal, thereby increasing the loudness.
- the piezoelectric ceramic 22 can be used as a two-in-one external amplifier and earphone.
- the dynamic actuator 32 is only used with the piezoelectric ceramic 22 in the external amplifier mode. That is to say, when the electronic device 100 is in the earphone mode. When the piezoelectric ceramic 22 responds to the entire audio signal alone.
- the dynamic coil actuator 32 can be used as a two-in-one external amplifier and earphone, and the piezoelectric ceramic 22 is only used with the dynamic coil actuator 32 in the external amplifier mode. That is to say, when the electronic device 100 is in In earpiece mode, the dynamic exciter 32 responds solely to the entire audio signal.
- the screen 10 includes a first end 12 and a second end 14 that are opposite to each other.
- One of the piezoelectric ceramic 22 and the dynamic coil actuator 32 is disposed close to the first end 12 and the other one is disposed close to the second end 12 .
- Terminal 14 is configured; when the electronic device 100 is in the handset mode, the piezoelectric ceramic 22 works or the dynamic coil actuator 32 works.
- the screen 10 includes a first end 12 and a second end 14 that are opposite to each other.
- One of the piezoelectric ceramic 22 and the dynamic coil actuator 32 is disposed close to the first end 12 , and the other is One is provided close to the second end 14 .
- Step 04 (controlling at least one of the piezoelectric ceramic 22 and the dynamic coil actuator 32 to work when the electronic device 100 is in the earphone mode) includes:
- the piezoelectric ceramic 22 and the moving coil actuator 32 are arranged at separate ends, which facilitates the formation of better sound effects when being played externally.
- one of the piezoelectric ceramics 22 and the moving coil actuator 32 is disposed close to the first end 12 (relative to the second end 14, disposed close to the first end 12), and the other one is disposed close to the second end 14 ( Relative to the first end 12, set close to the second end 14), specifically, the piezoelectric ceramic 22 is set close to the first end 12, and the moving coil actuator 32 is set close to the second end 14; or the moving coil actuator 32 is set close to The first end 12 is disposed, and the piezoelectric ceramic 22 is disposed close to the second end 14 .
- the piezoelectric ceramic 22 and the dynamic coil actuator 32 are arranged at two ends, only one of the piezoelectric ceramic 22 and the dynamic coil actuator 32 needs to work.
- the electronic device 100 is in the external amplification mode, since the piezoelectric ceramic 22 and the dynamic coil actuator 32 are arranged at two ends, the sounding positions of the two are different, and they can cooperate to achieve better sound effects such as stereophonic sound.
- the electronic device 100 further includes a placement status sensor for detecting In the placement state of the electronic device 100, when the electronic device 100 is in the handset mode and the placement state of the electronic device 100 is with the first end 12 facing upward, the piezoelectric ceramic 22 or the moving coil actuator 32 provided close to the first end 12 works; When the electronic device 100 is in the handset mode and the electronic device 100 is placed with the second end 14 facing upward, the piezoelectric ceramic 22 or the dynamic actuator 32 disposed close to the second end 14 works.
- the electronic device 100 further includes a placement state sensor.
- the placement state sensor is used to detect the placement state of the electronic device 100.
- Step 044 when the electronic device 100 is in the earpiece mode, control the piezoelectric ceramic 22 jobs or moving coil exciter 32 jobs), including:
- the operation of the piezoelectric ceramic 22 or the dynamic coil actuator 32 can be controlled according to the placement state of the electronic device 100 .
- the placement state sensor may be a gyroscope or a gravity sensor, etc., and the placement state sensor is used to detect the placement state of the electronic device 100 .
- the placement state of the electronic device 100 may include the first end 12 of the screen 10 facing upward, and the first end 12 of the screen 10 facing upward.
- the two ends 14 face upward.
- the piezoelectric ceramic 22 and the dynamic actuator 32 are arranged at two ends.
- the piezoelectric ceramic 22 or the dynamic actuator 32 close to the first end 12 works; when the electronic device 100 is in the handset mode and the electronic device 100 is placed with the second end 14 facing upward, it means that the user holds the electronic device 100 at this time. On the contrary, the piezoelectric ceramic 22 or the moving coil actuator 32 close to the second end 14 can be switched to work.
- the first end 12 may be the top end of the screen 10
- the second end 14 may be the bottom end of the screen 10
- the piezoelectric ceramic 22 is disposed close to the first end 12
- the dynamic actuator 32 is close to the second end 14
- the control method according to the embodiment of the present application can be implemented by the electronic device 100 according to the embodiment of the present application.
- electronic device 100 includes one or more processors 70 and memory 80 .
- Memory 80 stores computer programs. When the computer program is executed by the processor 70, the steps of the control method in any of the above embodiments are implemented.
- the piezoelectric ceramic 22 and the dynamic coil actuator 32 are controlled to work simultaneously.
- the piezoelectric ceramic 22 is used to respond to the high-frequency part of the audio signal and push the screen 10 to vibrate and produce sound.
- the dynamic coil actuator 32 for Respond to the low-frequency part of the audio signal and push the screen 10 to vibrate and produce sound.
- the computer-readable storage medium of the embodiment of the present application has a computer program stored thereon.
- the program is executed by the processor, the steps of the control method of any of the above embodiments are implemented.
- the piezoelectric ceramic 22 and the dynamic coil actuator 32 are controlled to work simultaneously.
- the piezoelectric ceramic 22 is used to respond to the high-frequency part of the audio signal and push the screen 10 to vibrate and produce sound.
- the dynamic coil actuator 32 is used to respond to the low frequency part of the audio signal and push the screen 10 to vibrate and produce sound.
- Computer program code can be in the form of source code, object code, executable file or some intermediate form, etc.
- Computer-readable storage media can include: any entity or device that can carry computer program code, recording media, USB flash drives, mobile hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM, Read-Only Memory), random access memory Access memory (RAM, Random Access Memory), and software distribution media, etc.
- the processor can be a central processing unit, or other general-purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate) Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
- DSP Digital Signal Processor
- ASIC Application Specific Integrated Circuit
- FPGA field programmable gate array
- references to the terms “one embodiment,” “some embodiments,” “an example,” “specific examples,” or “some examples” or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.
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- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
一种电子设备(100)、控制方法及计算机可读存储介质。电子设备(100)包括屏幕(10)、压电陶瓷(22)和动圈激励器(32)，压电陶瓷(22)连接屏幕(10)，动圈激励器(32)连接屏幕(10)；在电子设备(100)处于外放模式时，压电陶瓷(22)和动圈激励器(32)能够同时工作，压电陶瓷(22)用于响应音频信号的高频部分并推动屏幕(10)振动发声，动圈激励器(32)用于响应音频信号的低频部分并推动屏幕(10)振动发声。
Description
优先权信息
本申请请求2022年08月15日向中国国家知识产权局提交的、专利申请号为202210977265.1的专利申请的优先权和权益，并且通过参照将其全文并入此处。
本申请涉及屏幕发声技术，特别涉及一种电子设备、控制方法及计算机可读存储介质。
随着技术的迭代和更新，市面陆续涌现出了一系列的新形态电子设备，在无孔化需求下，屏幕发声电子设备也应运而生。在相关技术中，屏幕发声电子设备大多采用压电陶瓷的逆压电效应产生的形变驱动屏幕形变，从而推动空气发声，实现听筒和扬声器功能。根据压电陶瓷的频域阻抗特性，其低频即使在很高的电压驱动下也远远比传统动圈喇叭差。
发明内容
本申请的实施方式提供了一种电子设备、控制方法及计算机可读存储介质。
本申请实施方式的电子设备包括屏幕、压电陶瓷和动圈激励器，所述压电陶瓷连接所述屏幕，所述动圈激励器连接所述屏幕。在所述电子设备处于外放模式时，所述压电陶瓷和所述动圈激励器能够同时工作，所述压电陶瓷用于响应音频信号的高频部分并推动所述屏幕振动发声，所述动圈激励器用于响应所述音频信号的低频部分并推动所述屏幕振动发声。
本申请实施方式的控制方法可以用于电子设备，所述电子设备包括屏幕、压电陶瓷和动圈激励器，所述压电陶瓷连接所述屏幕，所述动圈激励器连接所述屏幕；所述控制方法包括：在所述电子设备处于外放模式时，控制所述压电陶瓷和所述动圈激励器同时工作，所述压电陶瓷用于响应音频信号的高频部分并推动所述屏幕振动发声，所述动圈激励器用于响应所述音频信号的低频部分并推动所述屏幕振动发声。
本申请实施方式的电子设备包括一个或多个处理器和存储器。所述存储器存储有计算机程序。所述计算机程序被所述处理器执行的情况下，实现上述实施方式所述的控制方法的步骤。
本申请实施方式的计算机可读存储介质，其上存储有计算机程序，所述程序被处理器
执行的情况下，实现上述实施方式所述的控制方法的步骤。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
本申请的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本申请某些实施方式的电子设备的结构示意图；
图2是本申请某些实施方式的控制方法的流程示意图；
图3是压电陶瓷和动圈激励器的频率响应示意图；
图4是本申请某些实施方式的频率响应对比示意图；
图5是本申请某些实施方式的控制方法的流程示意图；
图6是本申请某些实施方式的电子设备的部分电路示意图；
图7至图9是本申请某些实施方式的控制方法的流程示意图；
图10是本申请某些实施方式的电子设备的示意图。
下面详细描述本申请的实施方式，所述实施方式的实施方式在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的实施方式的描述中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的实施方式的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
随着技术的迭代和更新，市面陆续涌现出了一系列的新形态电子设备，在无孔化需求下，屏幕发声电子设备也应运而生。在相关技术中，屏幕发声电子设备大多采用压电陶瓷的逆压电效应产生的形变驱动屏幕形变，从而推动空气发声，实现听筒和扬声器功能。通过压电陶瓷的逆压电效应产生形变来驱动屏幕发声，一般需要多层压电材料堆叠，对工艺要求很高，同时还需要比较高的峰值电压来驱动，导致总体成本很高；此外，根据压电陶瓷的频域阻抗特性，其低频即使在很高的电压驱动下也远远比传统动圈喇叭差。也有产商使用动圈激励器来推动屏幕发声来实现听筒和扬声器功能。而采用动圈激励器这种方案来
实现屏幕发声，虽然其驱动电压和成本较低，但是其阻抗在高频后急剧增加，导致其高频性能衰减很大，响度和音质都比较差。
请参阅图1，本申请实施方式的电子设备100包括屏幕10、压电陶瓷22和动圈激励器32。压电陶瓷22连接屏幕10，动圈激励器32连接屏幕10。在电子设备100处于外放模式时，压电陶瓷22和动圈激励器32能够同时工作，压电陶瓷22用于响应音频信号的高频部分并推动屏幕10振动发声，动圈激励器32用于响应音频信号的低频部分并推动屏幕10振动发声。
请结合图2，本申请实施方式的控制方法可以用于电子设备100，电子设备100包括屏幕10、压电陶瓷22和动圈激励器32，压电陶瓷22连接屏幕10，动圈激励器32连接屏幕10；控制方法包括：
01：在电子设备100处于外放模式时，控制压电陶瓷22和动圈激励器32同时工作，压电陶瓷22用于响应音频信号的高频部分并推动屏幕10振动发声，动圈激励器32用于响应音频信号的低频部分并推动屏幕10振动发声。
上述电子设备100、控制方法中，通过压电陶瓷22响应高频和动圈激励器32响应低频，两者形成互补，在整个音频频域范围内驱动屏幕10振动发声，使外放效果频域更宽更均衡。
请参阅图3和图4，横坐标为频率，纵坐标为频率响应值。从图3可知，单独使用压电陶瓷，在频率较低时，频率响应较差；单独使用动圈激励器，在频率较高时，频率响应较差。从图4可知，采用本申请的技术方案，低频和高频的频率响应较佳，不论是相对单独使用压电陶瓷或动圈激励器，还是相对单独传统的动圈喇叭，本申请的技术方案的频率响应更好，使得外放效果频域更宽更均衡。
电子设备100可包括智能手机、平板电脑、智能手表、智能手环、等装置，在此不做具体限定。本申请实施方式的电子设备100以智能手机为例进行举例说明，不能理解为对本申请的限制。
压电陶瓷22可以通过逆压电效应产生的形变而发生振动，从而带动屏幕10振动发声。动圈激励器32的原理与动圈喇叭类似，具体例如可以为：变化的电流通过线圈，产生变化的磁场，变化的磁场与原有磁铁的磁场作用，产生振动，从而带动屏幕10振动发声。
请继续参阅图1，在某些实施方式中，电子设备100还包括电路板40，压电陶瓷22和动圈激励器32可以设置在电路板40上并分别与屏幕10连接。电路板40可以包括第一电路板42和第二电路板44，其中，第一电路板42可以为主板并靠近屏幕10的第一端12设置，第二电路板44可以为小板并靠近屏幕10的第二端14设置。压电陶瓷22和动圈激励器32可以均设置在第一电路板42上，或者，压电陶瓷22和动圈激励器32中的一个设
置在第一电路板42上，另一个设置在第二电路板44上。
电子设备100还包括中框52，中框52设置在屏幕10和电路板40之间，中框52上开设有通孔，压电陶瓷22和动圈激励器32可以穿过通孔以分别与屏幕10连接，如此，压电陶瓷22和动圈激励器32不与中框52接触，避免中框52振动而导致声音向四周发散。
电子设备100还包括电池54，电池54用于为屏幕10、压电陶瓷22、动圈激励器32、电路板40等供电。
电子设备100还包括壳体组件56，屏幕10、压电陶瓷22、动圈激励器32、电路板40、中框52、电池54等都可以收容在壳体组件56内。
在某些实施方式中，将音频信号大于第一预设频率的部分确定为高频部分，将音频信号小于第二预设频率的部分确定为低频部分。其中，第一预设频率可以小于第二预设频率，高频可以是指中高频，低频可以是指中低频，如此，高频部分和低频部分可以有部分重叠，可以避免音频信号损失。在一个实施例中，第一预设频率可以为1800HZ，第二预设频率可以为2200HZ。其中，第一预设频率和第二预设频率可以预先设定，也可以根据压电陶瓷22的规格参数和动圈激励器32的规格参数确定第一预设频率和第二预设频率，在此不做具体限定。
本申请实施方式通过将音频信号进行分频，用动圈激励器32中低频较好的推力结合压电陶瓷22的中高频延展性，提升屏幕10发声的整体外放效果。具体地，在电子设备100处于外放模式时，同时驱动压电陶瓷22和动圈激励器32以驱动屏幕10变形，从而使屏幕10上下振动，推动空气而发声。
压电陶瓷22和动圈激励器32配合使用，可以实现音频全频段优秀的外放表现力，同时在电子设备100处于外放模式时，通过分频处理，压电陶瓷22不需要响应低频部分，动圈激励器32不需要响应高频部分，压电陶瓷22和动圈激励器32难以推动的部分被滤除或者弱化，规避了器件本身性能较差的频域部分，因此，不需要较大的功率驱动，大大降低了整体的外放功耗。
在某些实施方式中，电子设备100还包括第一滤波器和第二滤波器，第一滤波器用于滤除音频信号的低频部分以获得音频信号的高频部分并输出至压电陶瓷22，第二滤波器用于滤除音频信号的高频部分以获得音频信号的低频部分并输出至动圈激励器32。
请继续参阅图2，在某些实施方式中，电子设备100还包括第一滤波器和第二滤波器，控制方法还包括：
02：控制第一滤波器滤除音频信号的低频部分以获得音频信号的高频部分并输出至压电陶瓷22；
03：控制第二滤波器滤除音频信号的高频部分以获得音频信号的低频部分并输出至动
圈激励器32。
如此，可以通过第一滤波器和第二滤波器获得音频信号的高频部分和低频部分。
具体地，在电子设备100处于外放模式时，可以通过第一滤波器和第二滤波器对音频信号进行分频处理，对压电陶瓷22进行调音时，考虑到压电陶瓷22的低频阻抗很大，可以通过第一滤波器滤除或者弱化低频部分，仅保留高频部分(中高频信号)，从而压电陶瓷22可以响应音频信号的中高频信号并推动屏幕10振动发声；而动圈激励器32由于高频阻抗大、性能衰减较大，可以滤除或者弱化高频部分，仅保留低频部分(中低频信号)，从而动圈激励器32可以响应音频信号的中低频信号并推动屏幕10振动发声。
请再次参阅图1，第一滤波器和第二滤波器可以集成在控制器60中，控制器60可以设置在电路板40上。
在某些实施方式中，在电子设备100处于听筒模式时，压电陶瓷22和动圈激励器32中的至少一个工作，压电陶瓷22用于响应音频信号并推动屏幕10振动发声，和/或，动圈激励器32用于响应音频信号并推动屏幕10振动发声。
请结合图5，在某些实施方式中，控制方法还包括：
04：在电子设备100处于听筒模式时，控制压电陶瓷22和动圈激励器32中的至少一个工作，压电陶瓷22用于响应音频信号并推动屏幕10振动发声，和/或，动圈激励器32用于响应音频信号并推动屏幕10振动发声。
如此，在电子设备100处于听筒模式时，可以通过压电陶瓷22和动圈激励器32中的至少一个推动屏幕10振动发声。
具体地，在电子设备100处于听筒模式时，压电陶瓷22和动圈激励器32均能够在整个音频频域范围内驱动屏幕10振动发声，因此，可以是压电陶瓷22或动圈激励器32单独响应整个音频信号以减少功耗；也可以是压电陶瓷22和动圈激励器32一起工作以响应整个音频信号，从而提升响度。
压电陶瓷22可以作外放和听筒的二合一，动圈激励器32也可以作外放和听筒的二合一，在此不做具体限定。
请参阅图6，在某些实施方式中，电子设备100包括第一功率放大器26和第二功率放大器36，第一功率放大器26与压电陶瓷22电连接并用于驱动压电陶瓷22工作，第二功率放大器36与动圈激励器32电连接并用于驱动动圈激励器32工作。
如此，可以通过第一功率放大器26驱动压电陶瓷22工作，通过第二功率放大器36驱动动圈激励器32工作。
具体地，第一功率放大器26具体可以为高压PA(Power Amplifier，功率放大器)，高压PA可以基于音频信号的高频部分驱动压电陶瓷22工作。第二功率放大器36具体可以
为Smart PA，Smart PA可以具有温度保护等功能，便于保护电路的安全。当然，上述第一功率放大器26和第二功率放大器36也可以采用其他PA，在此不做具体限定。
在某些实施方式中，电子设备100包括控制器60，控制器60用于在电子设备100处于外放模式时通过串行总线选址控制第一功率放大器26和第二功率放大器36同时工作，及在电子设备100处于听筒模式时通过串行总线选址控制第一功率放大器26和第二功率放大器36中的至少一个工作。
请参阅图7，在某些实施方式中，步骤01(在电子设备100处于外放模式时，控制压电陶瓷22和动圈激励器32同时工作)，包括：
012：在电子设备100处于外放模式时通过串行总线选址控制第一功率放大器26和第二功率放大器36同时工作；
步骤04(在电子设备100处于听筒模式时，控制压电陶瓷22和动圈激励器32中的至少一个工作)，包括：
042：在电子设备100处于听筒模式时通过串行总线选址控制第一功率放大器26和第二功率放大器36中的至少一个工作。
如此，可以根据电子设备100所处的工作模式控制压电陶瓷22和/或动圈激励器32工作。
具体地，在电子设备100处于外放模式时，可以通过串行总线(Inter-Integrated Circuit，I2C)选址，控制第一功率放大器26和第二功率放大器36同时工作，从而使得压电陶瓷22和动圈激励器32同时工作，压电陶瓷22响应音频信号的高频部分并推动屏幕10振动发声，动圈激励器32响应音频信号的低频部分并推动屏幕10振动发声。在电子设备100处于听筒模式时，可以通过串行总线选址，控制第一功率放大器26和第二功率放大器36中的至少一个工作，压电陶瓷22响应音频信号并推动屏幕10振动发声，和/或，动圈激励器32响应音频信号并推动屏幕10振动发声。
音频信号可以通过集成电路内置音频总线(Inter—IC Sound，I2S)传输至第一功率放大器26和第二功率放大器36。具体地，在电子设备100处于外放模式时，可以通过串行总线选址，控制第一功率放大器26和第二功率放大器36同时工作，通过集成电路内置音频总线将音频信号的高频部分传输至第一功率放大器26，将音频信号的低频部分传输至第二功率放大器36。在电子设备100处于听筒模式时，可以通过串行总线选址，控制第一功率放大器26和第二功率放大器36中的至少一个工作，通过集成电路内置音频总线将整个音频信号传输至第一功率放大器26和第二功率放大器36。
请参阅图1，在某些实施方式中，屏幕10包括相背的第一端12和第二端14，压电陶瓷22和动圈激励器32均靠近第一端12设置；在电子设备100处于听筒模式时，压电陶
瓷22和动圈激励器32中的至少一个工作。
如此，压电陶瓷22和动圈激励器32均靠近第一端12设置，便于进行电子设备100内的空间分配。
具体地，第一端12可以是屏幕10的顶端，第二端14可以是屏幕10的底端，在电子设备100处于听筒模式时，用户通常是将耳朵靠近电子设备100的顶端，因此，压电陶瓷22和动圈激励器32均靠近第一端12设置(相对第二端14而言，靠近第一端12设置)，能够满足用户正常的使用习惯。压电陶瓷22和动圈激励器32均靠近第一端12设置，在电子设备100处于听筒模式时，可以是压电陶瓷22或动圈激励器32单独响应整个音频信号以减少功耗；也可以是压电陶瓷22和动圈激励器32一起工作以响应整个音频信号，从而提升响度。在一个实施例中，压电陶瓷22可以作外放和听筒的二合一，动圈激励器32仅在外放模式下配合压电陶瓷22使用，也即是说，在电子设备100处于听筒模式时，压电陶瓷22单独响应整个音频信号。在另一个实施例中，动圈激励器32可以作外放和听筒的二合一，压电陶瓷22仅在外放模式下配合动圈激励器32使用，也即是说，在电子设备100处于听筒模式时，动圈激励器32单独响应整个音频信号。
在某些实施方式中，屏幕10包括相背的第一端12和第二端14，压电陶瓷22和动圈激励器32中的一者靠近第一端12设置，另一者靠近第二端14设置；在电子设备100处于听筒模式时，压电陶瓷22工作或动圈激励器32工作。
请参阅图8，在某些实施方式中，屏幕10包括相背的第一端12和第二端14，压电陶瓷22和动圈激励器32中的一者靠近第一端12设置，另一者靠近第二端14设置。步骤04(在电子设备100处于听筒模式时，控制压电陶瓷22和动圈激励器32中的至少一个工作)，包括：
044：在电子设备100处于听筒模式时，控制压电陶瓷22工作或动圈激励器32工作。
如此，压电陶瓷22和动圈激励器32分隔两端设置，便于外放时形成更好的声音效果。
具体地，压电陶瓷22和动圈激励器32中的一者靠近第一端12设置(相对第二端14而言，靠近第一端12设置)，另一者靠近第二端14设置(相对第一端12而言，靠近第二端14设置)，具体可以是：压电陶瓷22靠近第一端12设置，动圈激励器32靠近第二端14设置；或动圈激励器32靠近第一端12设置，压电陶瓷22靠近第二端14设置。在电子设备100处于听筒模式时，由于压电陶瓷22和动圈激励器32分隔两端设置，因此，只需要压电陶瓷22和动圈激励器32中的一个工作即可。在电子设备100处于外放模式时，由于压电陶瓷22和动圈激励器32分隔两端设置，因此，两者的发音位置不同，可以配合实现立体音等更好的声音效果。
在某些实施方式中，电子设备100还包括放置状态传感器，放置状态传感器用于检测
电子设备100的放置状态，在电子设备100处于听筒模式且电子设备100的放置状态为第一端12朝上时，靠近第一端12设置的压电陶瓷22或动圈激励器32工作；在电子设备100处于听筒模式且电子设备100的放置状态为第二端14朝上时，靠近第二端14设置的压电陶瓷22或动圈激励器32工作。
请参阅图9，在某些实施方式中，电子设备100还包括放置状态传感器，放置状态传感器用于检测电子设备100的放置状态，步骤044(在电子设备100处于听筒模式时，控制压电陶瓷22工作或动圈激励器32工作)，包括：
0442：在电子设备100处于听筒模式且电子设备100的放置状态为第一端12朝上时，控制靠近第一端12设置的压电陶瓷22或动圈激励器32工作；
0444：在电子设备100处于听筒模式且电子设备100的放置状态为第二端14朝上时，控制靠近第二端14设置的压电陶瓷22或动圈激励器32工作。
如此，可以根据电子设备100的放置状态控制压电陶瓷22或动圈激励器32工作。
具体地，放置状态传感器可以是陀螺仪或重力传感器等，放置状态传感器用于检测电子设备100的放置状态，电子设备100的放置状态可以包括屏幕10的第一端12朝上、屏幕10的第二端14朝上。压电陶瓷22和动圈激励器32分隔两端设置，在电子设备100处于听筒模式且电子设备100的放置状态为第一端12朝上时，说明此时用户正常使用电子设备100，可以控制靠近第一端12的压电陶瓷22或动圈激励器32工作；在电子设备100处于听筒模式且电子设备100的放置状态为第二端14朝上时，说明此时用户将电子设备100拿反了，可以切换靠近第二端14的压电陶瓷22或动圈激励器32工作。
在一个实施例中，第一端12可以是屏幕10的顶端，第二端14可以是屏幕10的底端，压电陶瓷22靠近第一端12设置，动圈激励器32靠近第二端14设置，在电子设备100处于听筒模式且电子设备100的放置状态为第一端12朝上时，可以控制靠近第一端12设置的压电陶瓷22工作以作为听筒；在电子设备100处于听筒模式且电子设备100的放置状态为第二端14朝上时，可以切换靠近第二端14设置的动圈激励器32工作以作为听筒；在电子设备100处于外放模式时，可以控制压电陶瓷22和动圈激励器32一起工作以作为外放。
请参阅图10，本申请实施方式的控制方法可由本申请实施方式的电子设备100实现。具体地，电子设备100包括一个或多个处理器70和存储器80。存储器80存储有计算机程序。计算机程序被处理器70执行的情况下，实现上述任一实施方式的控制方法的步骤。
例如，计算机程序被处理器70执行的情况下，实现以下控制方法的步骤：
01：在电子设备100处于外放模式时，控制压电陶瓷22和动圈激励器32同时工作，压电陶瓷22用于响应音频信号的高频部分并推动屏幕10振动发声，动圈激励器32用于
响应音频信号的低频部分并推动屏幕10振动发声。
本申请实施方式的计算机可读存储介质，其上存储有计算机程序，程序被处理器执行的情况下，实现上述任一实施方式的控制方法的步骤。
例如，程序被处理器执行的情况下，实现以下控制方法的步骤：
01：在电子设备100处于外放模式时，控制压电陶瓷22和动圈激励器32同时工作，压电陶瓷22用于响应音频信号的高频部分并推动屏幕10振动发声，动圈激励器32用于响应音频信号的低频部分并推动屏幕10振动发声。
可以理解，计算机程序包括计算机程序代码。计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。计算机可读存储介质可以包括：能够携带计算机程序代码的任何实体或装置、记录介质、U盘、移动硬盘、磁碟、光盘、计算机存储器、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、以及软件分发介质等。处理器可以是中央处理器，还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或更多个用于实现特定逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分，并且本申请的优选实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能，这应被本申请的实施例所属技术领域的技术人员所理解。
需要指出的是，上述所提到的具体数值只为了作为例子详细说明本申请的实施，而不应理解为对本申请的限制。在其他例子或实施方式或实施例中，可根据本申请来选择其他数值，在此不作具体限定。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对
上述实施例进行变化、修改、替换和变型。
Claims (20)
- 一种电子设备，其特征在于，所述电子设备包括：屏幕；压电陶瓷，所述压电陶瓷连接所述屏幕；动圈激励器，所述动圈激励器连接所述屏幕；在所述电子设备处于外放模式时，所述压电陶瓷和所述动圈激励器能够同时工作，所述压电陶瓷用于响应音频信号的高频部分并推动所述屏幕振动发声，所述动圈激励器用于响应所述音频信号的低频部分并推动所述屏幕振动发声。
- 根据权利要求1所述的电子设备，其特征在于，所述电子设备还包括电路板和中框，所述中框设置在所述屏幕和电路板之间，所述压电陶瓷和所述动圈激励器设置在所述电路板上，所述中框上开设有通孔，所述压电陶瓷和所述动圈激励器穿过所述通孔以分别与所述屏幕连接。
- 根据权利要求1所述的电子设备，其特征在于，所述电子设备还包括第一滤波器和第二滤波器，所述第一滤波器用于滤除所述音频信号的低频部分以获得所述音频信号的高频部分并输出至所述压电陶瓷，所述第二滤波器用于滤除所述音频信号的高频部分以获得所述音频信号的低频部分并输出至所述动圈激励器。
- 根据权利要求1所述的电子设备，其特征在于，在所述电子设备处于听筒模式时，所述压电陶瓷和所述动圈激励器中的至少一个工作，所述压电陶瓷用于响应所述音频信号并推动所述屏幕振动发声，和/或，所述动圈激励器用于响应所述音频信号并推动所述屏幕振动发声。
- 根据权利要求4所述的电子设备，其特征在于，所述电子设备包括第一功率放大器和第二功率放大器，所述第一功率放大器与所述压电陶瓷电连接并用于驱动所述压电陶瓷工作，所述第二功率放大器与所述动圈激励器电连接并用于驱动所述动圈激励器工作。
- 根据权利要求5所述的电子设备，其特征在于，所述电子设备包括控制器，所述控制器用于在所述电子设备处于外放模式时通过串行总线选址控制所述第一功率放大器和所述第二功率放大器同时工作，及在所述电子设备处于听筒模式时通过串行总线选址控 制所述第一功率放大器和所述第二功率放大器中的至少一个工作。
- 根据权利要求4所述的电子设备，其特征在于，所述屏幕包括相背的第一端和第二端，所述压电陶瓷和所述动圈激励器均靠近所述第一端设置；在所述电子设备处于听筒模式时，所述压电陶瓷和所述动圈激励器中的至少一个工作。
- 根据权利要求4所述的电子设备，其特征在于，所述屏幕包括相背的第一端和第二端，所述压电陶瓷和所述动圈激励器中的一者靠近所述第一端设置，另一者靠近所述第二端设置；在所述电子设备处于听筒模式时，所述压电陶瓷工作或所述动圈激励器工作。
- 根据权利要求8所述的电子设备，其特征在于，所述电子设备还包括放置状态传感器，所述放置状态传感器用于检测所述电子设备的放置状态，在所述电子设备处于听筒模式且所述电子设备的放置状态为所述第一端朝上时，靠近所述第一端设置的所述压电陶瓷或所述动圈激励器工作；在所述电子设备处于听筒模式且所述电子设备的放置状态为所述第二端朝上时，靠近所述第二端设置的所述压电陶瓷或所述动圈激励器工作。
- 一种控制方法，用于电子设备，其特征在于，所述电子设备包括屏幕、压电陶瓷和动圈激励器，所述压电陶瓷连接所述屏幕，所述动圈激励器连接所述屏幕；所述控制方法包括：在所述电子设备处于外放模式时，控制所述压电陶瓷和所述动圈激励器同时工作，所述压电陶瓷用于响应音频信号的高频部分并推动所述屏幕振动发声，所述动圈激励器用于响应所述音频信号的低频部分并推动所述屏幕振动发声。
- 根据权利要求10所述的控制方法，其特征在于，所述电子设备还包括电路板和中框，所述中框设置在所述屏幕和电路板之间，所述压电陶瓷和所述动圈激励器设置在所述电路板上，所述中框上开设有通孔，所述压电陶瓷和所述动圈激励器穿过所述通孔以分别与所述屏幕连接。
- 根据权利要求10所述的控制方法，其特征在于，所述电子设备还包括第一滤波器和第二滤波器，所述控制方法还包括：控制所述第一滤波器滤除所述音频信号的低频部分以获得所述音频信号的高频部分并输出至所述压电陶瓷；控制所述第二滤波器滤除所述音频信号的高频部分以获得所述音频信号的低频部分并输出至所述动圈激励器。
- 根据权利要求10所述的控制方法，其特征在于，所述控制方法还包括：在所述电子设备处于听筒模式时，控制所述压电陶瓷和所述动圈激励器中的至少一个工作，所述压电陶瓷用于响应所述音频信号并推动所述屏幕振动发声，和/或，所述动圈激励器用于响应所述音频信号并推动所述屏幕振动发声。
- 根据权利要求13所述的控制方法，其特征在于，所述电子设备包括第一功率放大器和第二功率放大器，所述第一功率放大器与所述压电陶瓷电连接并用于驱动所述压电陶瓷工作，所述第二功率放大器与所述动圈激励器电连接并用于驱动所述动圈激励器工作。
- 根据权利要求14所述的控制方法，其特征在于，所述在所述电子设备处于外放模式时，控制所述压电陶瓷和所述动圈激励器同时工作，包括：在所述电子设备处于外放模式时通过串行总线选址控制所述第一功率放大器和所述第二功率放大器同时工作；所述在所述电子设备处于听筒模式时，控制所述压电陶瓷和所述动圈激励器中的至少一个工作，包括：在所述电子设备处于听筒模式时通过串行总线选址控制所述第一功率放大器和所述第二功率放大器中的至少一个工作。
- 根据权利要求13所述的控制方法，其特征在于，所述屏幕包括相背的第一端和第二端，所述压电陶瓷和所述动圈激励器均靠近所述第一端设置；在所述电子设备处于听筒模式时，所述压电陶瓷和所述动圈激励器中的至少一个工作。
- 根据权利要求13所述的控制方法，其特征在于，所述屏幕包括相背的第一端和第二端，所述压电陶瓷和所述动圈激励器中的一者靠近所述第一端设置，另一者靠近所述第二端设置；所述在所述电子设备处于听筒模式时，控制所述压电陶瓷和所述动圈激励器中的至少一个工作，包括：在所述电子设备处于听筒模式时，控制所述压电陶瓷工作或所述动圈激励器工作。
- 根据权利要求17所述的控制方法，其特征在于，所述电子设备还包括放置状态传感器，所述放置状态传感器用于检测所述电子设备的放置状态，所述在所述电子设备处于听筒模式时，控制所述压电陶瓷工作或所述动圈激励器工作，包括：在所述电子设备处于听筒模式且所述电子设备的放置状态为所述第一端朝上时，控制靠近所述第一端设置的所述压电陶瓷或所述动圈激励器工作；在所述电子设备处于听筒模式且所述电子设备的放置状态为所述第二端朝上时，控制靠近所述第二端设置的所述压电陶瓷或所述动圈激励器工作。
- 一种电子设备，其特征在于，所述电子设备包括一个或多个处理器和存储器，所述存储器存储有计算机程序，所述计算机程序被所述处理器执行的情况下，实现权利要求10-18任意一项所述的控制方法的步骤。
- 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述程序被处理器执行的情况下，实现权利要求10-18任意一项所述的控制方法的步骤。
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| CN110677792A (zh) * | 2019-10-25 | 2020-01-10 | Oppo广东移动通信有限公司 | 电子设备和电子设备的控制方法 |
| CN111866673A (zh) * | 2020-08-03 | 2020-10-30 | 苏州索迩电子技术有限公司 | 屏幕发声装置、方法、存储介质及电子装置 |
| CN112543250A (zh) * | 2019-09-04 | 2021-03-23 | 中兴通讯股份有限公司 | 音频播放控制方法、智能手机、装置及可读存储介质 |
| US20210136499A1 (en) * | 2019-10-31 | 2021-05-06 | AAC Technologies Pte. Ltd. | Screen sounding exciter and electronic device |
| CN115412817A (zh) * | 2022-08-15 | 2022-11-29 | Oppo广东移动通信有限公司 | 电子设备、控制方法及计算机可读存储介质 |
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| CN112543250A (zh) * | 2019-09-04 | 2021-03-23 | 中兴通讯股份有限公司 | 音频播放控制方法、智能手机、装置及可读存储介质 |
| CN110677792A (zh) * | 2019-10-25 | 2020-01-10 | Oppo广东移动通信有限公司 | 电子设备和电子设备的控制方法 |
| US20210136499A1 (en) * | 2019-10-31 | 2021-05-06 | AAC Technologies Pte. Ltd. | Screen sounding exciter and electronic device |
| CN111866673A (zh) * | 2020-08-03 | 2020-10-30 | 苏州索迩电子技术有限公司 | 屏幕发声装置、方法、存储介质及电子装置 |
| CN115412817A (zh) * | 2022-08-15 | 2022-11-29 | Oppo广东移动通信有限公司 | 电子设备、控制方法及计算机可读存储介质 |
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