WO2018000501A1 - 屏幕发声控制装置、方法及终端 - Google Patents

屏幕发声控制装置、方法及终端 Download PDF

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Publication number
WO2018000501A1
WO2018000501A1 PCT/CN2016/092495 CN2016092495W WO2018000501A1 WO 2018000501 A1 WO2018000501 A1 WO 2018000501A1 CN 2016092495 W CN2016092495 W CN 2016092495W WO 2018000501 A1 WO2018000501 A1 WO 2018000501A1
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Prior art keywords
signal
motor
middle frame
driver
frequency
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English (en)
French (fr)
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齐永生
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/02—Microphones

Definitions

  • the present disclosure relates to the field of screen sounding technology, for example, to a screen sounding control apparatus, method, and terminal.
  • the piezoelectric driver's low frequency response is poor.
  • the low frequency response can be improved by software equalizer (Equalizer, EQ).
  • EQ software equalizer
  • the effect of software mode debugging is limited.
  • the low frequency response is poor.
  • Embodiments of the present disclosure provide a screen sounding control apparatus, method, and terminal, which can ensure a good low frequency response effect of a screen sounding terminal.
  • a screen sound control device includes: a digital signal processor, a codec, a frequency divider, an amplifier, a driver, a motor, and a middle frame;
  • An output of the digital signal processor is coupled to an input of the codec
  • An output end of the codec is connected to an input end of the frequency divider
  • the frequency divider has a first output end connected to an input end of the amplifier, and a second output end connected to an input end of the motor;
  • the motor is coupled to the middle frame
  • An output of the amplifier is coupled to an input of the driver
  • the digital signal processor is configured to perform analog-to-digital conversion processing on the audio signal to obtain a digital signal, and send the digital signal to the codec;
  • the codec is configured to decode the digital signal to obtain a decoded signal, and send the decoded signal to the frequency divider;
  • the frequency divider is configured to perform frequency division processing on the decoded signal to obtain two output signals, and one high frequency signal is sent to the driver through an amplification process of the amplifier, so that the driver drives the display screen to vibrate, all the way
  • the low frequency signal drives the motor to rotate, so that the motor drives the middle frame to vibrate, and the display frame vibrates and sounds by the middle frame.
  • a connector is also included;
  • first end of the connecting member is connected to the motor, and the second end of the connecting member is connected to the middle frame;
  • the connecting member is configured to transmit a driving force for rotating the motor to the middle frame to vibrate the middle frame, and then the display screen vibrates and sounds by the middle frame.
  • the motor is a linear cylindrical motor.
  • the driver is a piezoelectric driver or an electromagnetic driver, wherein the driver is in direct contact with the display screen.
  • the screen sounding control device further includes an audio signal collecting module
  • the output end of the audio signal acquisition module is connected to the input end of the digital signal processing module
  • the audio signal acquisition module includes one or more combinations of an antenna, a microphone, and an application processor.
  • a screen sound control method includes:
  • Amplifying the high frequency signal to obtain an amplified signal and transmitting the amplified signal to a driver, so that the driver drives the display screen to vibrate;
  • the motor and the middle frame are connected by a connecting member; the driving force for rotating the motor is transmitted to the middle frame by the connecting member, so that the middle frame vibrates, and further The frame drives the display screen to vibrate.
  • the motor is a linear cylindrical motor.
  • the driver is a piezoelectric driver or an electromagnetic driver, wherein the driver The device is in direct contact with the display screen.
  • the method before performing the analog-to-digital conversion processing on the audio signal to obtain the digital signal, the method further includes:
  • a terminal comprising a display screen and the screen sounding control device according to any one of claims 1 to 5.
  • the digital signal is digitally processed by the digital signal processor to obtain a digital signal, and then the digital signal is decoded by the codec to obtain a decoded signal, and the above is obtained by a frequency divider.
  • the decoded signal is subjected to frequency division processing to obtain a high frequency signal and a low frequency signal.
  • the high frequency signal is input to the driver through the amplification processing of the amplifier, and the driver drives the display screen to vibrate
  • the low frequency signal is input to the motor
  • the driving motor rotates to drive the middle frame to vibrate.
  • the middle frame drives the display screen to vibrate and sound, which can ensure the good low frequency response of the screen sounding terminal.
  • FIG. 1 is a schematic structural diagram of a screen sounding control apparatus according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of another screen sounding control apparatus disclosed in an embodiment of the present disclosure.
  • FIG. 3 is a schematic flow chart of a screen sounding control method disclosed in an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • Embodiments of the present disclosure provide a screen sounding control apparatus, method, and terminal, which can ensure a good low frequency response effect of a screen sounding terminal.
  • FIG. 1 is a schematic structural diagram of a screen sounding control apparatus according to an embodiment of the present disclosure.
  • the screen sound control device shown in FIG. 1 includes:
  • a digital signal processor 110 a codec 120, a frequency divider 130, an amplifier 140, a driver 150, a motor 160, and a middle frame 170;
  • the output end of the digital signal processor 110 is connected to the input end of the codec 120; the output end of the codec 120 is connected to the input end of the frequency divider 130; the frequency divider 130 has a first output end and a second output end, the first output end is connected to the input end of the amplifier 140, the second output end is connected to the input end of the motor 160; the motor 160 is connected to the middle frame 170; the output end of the amplifier 140 is connected to the driver 150 input.
  • the digital signal processor 110 (Digital Signal Processing, DSP) is configured to perform analog-to-digital conversion processing on the audio signal to obtain a digital signal, and send the digital signal to the codec 120.
  • DSP Digital Signal Processing
  • the digital signal processor is a dedicated chip for digital signal processing, which can convert continuous analog audio signals into digital signals.
  • the digital signal processor can be divided into two categories: programmable and non-programmable.
  • the non-programmable digital signal processor takes the flow of the signal processing algorithm as the basic logic structure. Without the control program, generally only one main processing function can be completed, so it is also called a dedicated signal processor.
  • digital signal processors have limited functions, they have higher processing speeds.
  • the programmable signal processor can be programmed to change the functions that the processor has to perform, and has a large versatility, so it is also called a general-purpose signal processor.
  • the codec 120 decodes the digital signal to obtain a decoded signal, and transmits the decoded signal to the frequency divider 130.
  • the codec is a device or program that can transform a signal or a data stream.
  • the transformation referred to here includes both the operation of encoding a signal or data stream (usually for transmission, storage or encryption) or the extraction of an encoded stream, as well as the recovery of a form suitable for observation or operation from this encoded stream for observation or processing. Operation.
  • the frequency divider 130 divides the decoded signal to obtain two output signals, and the high frequency signal of one of the high frequency signals triggers the vibration of the driver 150 through the amplification process of the amplifier 140, thereby driving the display screen to vibrate, and the low frequency signal drives the motor 160. Rotating, thereby driving the middle frame 170 to vibrate, and driving the display screen to vibrate by the middle frame 170.
  • the frequency divider can separate the input analog audio signal into a high frequency signal and a low frequency signal.
  • the frequency divider is essentially an LC filter network composed of a capacitor and an inductor coil.
  • the treble channel is a high-pass filter, which only allows the high-frequency signal to pass through and blocks the low-frequency signal; the bass channel is just the opposite, it only allows The bass passes through to block the high-frequency signal; the mid-range channel is a band-pass filter, except that the frequency between the two low-high and high-frequency points can pass, and both the high-frequency component and the low-frequency component are blocked.
  • attenuating resistors are added.
  • some frequency dividers also include an impedance compensation network composed of resistors and capacitors to facilitate the power amplifier. drive.
  • the trigger driver 150 operates, and the driver 150 is in direct contact with the display screen, and is deformed by the output signal of the amplifier, thereby driving the display screen. Vibration sounds.
  • the low frequency signal driven by the frequency divider 130 drives the motor 160 to rotate, and the motor 160 and the middle frame 170 are connected by a connecting member. Therefore, the connecting member transmits the driving force of the motor 160 to the middle frame 170, so that the middle frame 170 The vibration is generated, and since the display screen is fixed on the middle frame 170, the middle frame 170 drives the display screen to vibrate.
  • the motor 160 may be a linear cylindrical motor, wherein the linear cylindrical motor has a simple structure, a more accurate positioning, a fast response speed, high sensitivity, and good followability.
  • the above-described driver 150 may be a piezoelectric driver or an electromagnetic driver, and the driver 150 is in direct contact with the display screen.
  • the piezoelectric actuator uses the inverse piezoelectric effect to convert electrical energy into mechanical energy or mechanical motion, and has the advantages of simple structure, low speed and large torque.
  • piezoelectric actuators can be divided into rigid displacement drivers and resonant displacement drivers.
  • the drive modes of rigid displacement drives are mainly multi-layer drivers and single (dual) chip drivers.
  • Resonant displacement actuators range from millimeter-scale micromotors to centimeter-sized motors; from single-degree-of-freedom linear motors to multi-degree-of-freedom planar and spherical motors; in principle, friction-based ultrasonics Motors to non-contact ultrasonic motors that use acoustic suspension; from high-resolution peristaltic motors to wear-free piezoelectric-current composite stepper motors. According to the working principle, the ultrasonic motor can be divided into contact type and non-contact type.
  • the electromagnetic actuator uses the principle of electromagnetic induction to control the magnetic force by changing the input current and the size of the air gap between the electromagnet and the magnetizer, thereby realizing the technology of non-contact electromagnetic driving.
  • the audio signal is processed by a digital signal processor
  • Digital processing obtains a digital signal, and then decodes the digital signal through a codec to obtain a decoded signal, and divides the decoded signal by a frequency divider to separate a high frequency signal and a low frequency signal, wherein the high frequency signal passes through the amplifier.
  • the amplification process inputs the driver, and the driver drives the display screen to vibrate, the low frequency signal is input to the motor, and the driving motor rotates to drive the middle frame to vibrate, and then the middle frame drives the display screen to vibrate.
  • FIG. 2 is a schematic structural diagram of another screen sounding control apparatus according to an embodiment of the present disclosure. Wherein, based on the screen sound control device shown in FIG. 1, the screen sound control device shown in FIG. 2 further includes:
  • the connecting member may be an elastic coupling, a gear, a worm gear, etc., and the connecting member may be determined by the structure of the motor 160 and the middle frame 170.
  • the audio signal acquisition module 190 wherein the output of the audio signal acquisition module 190 is coupled to the input of the digital signal processor 110 for acquiring an audio signal.
  • the audio signal collection module 190 may be one or a combination of an antenna, a microphone, and an application processor.
  • the antenna is configured to receive a call voice signal in the air
  • the microphone is configured to receive a multimedia voice signal (eg, a recorded voice signal, a video voice signal, etc.)
  • the application processor is configured to acquire an audio signal generated by the application (eg, a prompt signal, etc.) ).
  • FIG. 3 is a schematic flowchart diagram of a screen sounding control method according to an embodiment of the present disclosure.
  • the screen sound control method shown in FIG. 3 may include the following steps:
  • step 310 an audio signal is acquired using an antenna, a microphone, or an application processor;
  • step 320 performing analog-to-digital conversion processing on the audio signal to obtain a digital signal, and decoding the digital signal to obtain a decoded signal;
  • step 330 the above-mentioned decoded signal is subjected to frequency division processing to obtain a frequency-divided signal, wherein the frequency-divided signal includes a high-frequency signal and a low-frequency signal;
  • step 340 the high frequency signal is amplified to obtain an amplified signal, and the amplified signal is sent to the driver, so that the driver drives the display screen to vibrate;
  • step 350 the low frequency signal is sent to the motor to cause the motor to drive the middle frame to vibrate, and the display screen vibrates by the middle frame.
  • the audio signal may be a multimedia audio signal, a call voice signal, or a vibration prompt signal, etc., for example, may be used by an antenna to receive a call voice signal in the air, and the microphone is configured to receive a multimedia voice signal (eg, a voice signal, A video speech signal, etc.), the application processor is used to acquire an audio signal (eg, a cue signal, etc.) generated by the application.
  • a multimedia voice signal eg, a voice signal, A video speech signal, etc.
  • the application processor is used to acquire an audio signal (eg, a cue signal, etc.) generated by the application.
  • the audio signal is digitally processed to obtain a digital signal, and then the digital signal is decoded to obtain a decoded signal, and the decoded signal is frequency-divided to obtain a high-frequency signal and
  • the low frequency signal is amplified, and the amplified high frequency signal is sent to the driver, and the driver drives the display screen to vibrate and emit the low frequency signal to the motor. Since the motor is in contact with the middle frame, the middle frame is used. To fix the display screen, the motor drives the middle frame to vibrate. Optionally, the middle frame can drive the display screen to vibrate.
  • the above driver may be a piezoelectric driver or an electromagnetic driver, and the driver is in direct contact with the display screen.
  • the piezoelectric actuator uses the inverse piezoelectric effect to convert electrical energy into mechanical energy or mechanical motion, and has the advantages of simple structure, low speed and large torque.
  • piezoelectric actuators can be divided into rigid displacement drivers and resonant displacement drivers.
  • the drive modes of rigid displacement drives are mainly multi-layer drivers and single (dual) chip drivers.
  • Resonant displacement actuators range from millimeter-scale micromotors to centimeter-sized motors; from single-degree-of-freedom linear motors to multi-degree-of-freedom planar and spherical motors; in principle, friction-based ultrasonics Motors to non-contact ultrasonic motors that use acoustic suspension; from high-resolution peristaltic motors to wear-free piezoelectric-current composite stepper motors. According to the working principle, the ultrasonic motor can be divided into contact type and non-contact type.
  • the electromagnetic actuator uses the principle of electromagnetic induction to control the magnetic force by changing the input current and the size of the air gap between the electromagnet and the magnetizer, thereby realizing the technology of non-contact electromagnetic driving.
  • the motor may be a linear cylindrical motor, wherein the linear cylindrical motor has a simple structure, a more accurate positioning, a fast response speed, high sensitivity, and good followability.
  • the motor and the middle frame are connected by a connecting member, and the driving force for rotating the motor is transmitted to the middle frame, so that the middle frame vibrates by the motor, and the display screen vibrates and sounds by the middle frame.
  • the connecting member may be an elastic coupling, a gear, a worm gear, etc., and the connecting member may be determined by the structure of the motor and the middle frame.
  • the screen sounding control method shown in FIG. 3, which obtains a digital letter by digitally processing an audio signal And further decoding the digital signal to obtain a decoded signal, and then performing frequency division processing on the decoded signal to separate the high frequency signal and the low frequency signal, wherein the high frequency signal is input to the driver through the amplification process, and the display screen vibrates and sounds by the driver.
  • the low frequency signal is input to the motor, and the driving motor rotates to drive the middle frame to vibrate, and then the middle frame drives the display screen to vibrate and sound.
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • the terminal includes a display screen and the screen sounding control apparatus provided in FIG. 1 to FIG. 2, wherein the terminal may include a smart phone or a tablet.
  • Terminals such as desktop computers, personal digital assistants (PDAs), and mobile Internet devices (MIDs).
  • the screen sound control device is used to control the display screen vibration sound.
  • the terminal 400 shown in FIG. 4 only indicates components required in the terminal 400 for performing the screen sounding control method disclosed in the embodiment of the present disclosure, such as the screen sounding control device 410 and the display screen 420, which can Other components of the present disclosure are not labeled as this does not affect the implementation of the embodiments of the present disclosure.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. You can choose some or all of them according to actual needs.
  • the unit is to achieve the purpose of the solution of the embodiment.
  • the functional units in the embodiments of the present disclosure may be integrated into one processing unit, or a plurality of units may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present disclosure may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. Some instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the foregoing storage medium includes a medium that can store program codes, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.
  • the digital signal is digitally processed by the digital signal processor to obtain a digital signal, and then the digital signal is decoded by the codec to obtain a decoded signal, and the decoded signal is frequency-divided by a frequency divider to obtain a high signal.
  • the frequency signal and the low frequency signal wherein the high frequency signal is input to the driver through the amplification processing of the amplifier, the driver drives the display screen to vibrate, the low frequency signal is input to the motor, the driving motor rotates to drive the middle frame vibration, and then the middle frame drives the display screen to vibrate. It can guarantee good low frequency response of the screen sounding terminal.

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  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

一种屏幕发声控制装置（410），包括：数字信号处理器（110），用于对音频信号进行模数转换处理，得到数字信号；编解码器（120），与所述数字信号处理器的输出端连接，对所述数字信号进行解码，得到解码信号（320）；分频器（130），与所述编解码器（120）的输出端连接，得到所述解码信号中的高频信号和低频信号（330）；放大器（140），用于对所述高频信号进行放大处理；驱动器（150），与所述放大器（140）的输出端连接，驱动显示屏幕（420）振动发声（340）；马达（160），与所述分频器（130）的低频信号输出端连接；中框（170），与所述马达（160）连接，由马达（160）带动中框（170）振动，进而由中框（170）带动显示屏幕（420）振动发声（350）。

Description

屏幕发声控制装置、方法及终端
本申请要求在2016年6月28日提交中国专利局、申请号为201610490810.9、发明名称为“一种屏幕发声控制装置、方法及终端”的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及屏幕发声技术领域，例如涉及一种屏幕发声控制装置、方法及终端。
背景技术
随着终端技术的发展，利用屏幕发声技术的智能手机开始出现，所谓屏幕发声智能手机，是将国际领先的屏幕发声即“压电驱动器技术”应用于智能手机，使听筒功能与平面转换(In Plane Switching，IPS)高清屏幕完美融合的智能手机，无需在手机正面设置听筒发声孔。当压电驱动器通电工作时，手机触摸屏随之产生振动，进而推动空气产生声音。
但是，在使用过程中发现，压电驱动器的低频响应较差，为了获得较好的低频响应，可以通过软件更改均衡器(Equalizer，EQ)提高低频响应效果，但是，采用软件方式调试的效果有限，低频响应效果较差。
发明内容
本公开实施例提供了一种屏幕发声控制装置、方法及终端，可以保证屏幕发声终端良好的低频响应效果。
一种屏幕发声控制装置，包括：数字信号处理器、编解码器、分频器、放大器、驱动器、马达以及中框；
所述数字信号处理器的输出端连接所述编解码器的输入端；
所述编解码器的输出端连接所述分频器的输入端；
所述分频器有第一输出端和第二输出端，所述第一输出端连接所述放大器的输入端，所述第二输出端连接所述马达的输入端；
所述马达与所述中框连接；
所述放大器的输出端连接所述驱动器的输入端；
所述数字信号处理器用于对音频信号进行模数转换处理，得到数字信号，并将所述数字信号发送给所述编解码器；
所述编解码器用于对所述数字信号进行解码，得到解码信号，并将所述解码信号发送给所述分频器；以及
所述分频器用于对所述解码信号进行分频处理得到两路输出信号，一路高频信号经过所述放大器的放大处理发送给所述驱动器，以使所述驱动器带动显示屏幕振动发声，一路低频信号驱动所述马达转动，以使所述马达带动所述中框振动，并由所述中框带动所述显示屏幕振动发声。
可选的，还包括连接件；
其中，所述连接件的第一端与所述马达连接，所述连接件的第二端与所述中框连接；
所述连接件用于将所述马达转动的驱动力传递给所述中框，以使所述中框振动，进而由所述中框带动所述显示屏幕振动发声。
可选的，所述马达为线性柱状马达。
可选的，所述驱动器为压电式驱动器或者电磁式驱动器，其中，所述驱动器与所述显示屏幕直接接触。
可选的，所述屏幕发声控制装置还包括音频信号采集模块；
其中，所述音频信号采集模块的输出端与所述数字信号处理模块的输入端连接；
所述音频信号采集模块包括天线、传声器以及应用程序处理器中的一种或多种组合。
一种屏幕发声控制方法，包括：
对音频信号进行模数转换处理，得到数字信号，并对所述数字信号进行解码，得到解码信号；
对所述解码信号进行分频处理，得到分频信号，其中，所述分频信号包括高频信号以及低频信号；
对所述高频信号进行放大处理，得到放大信号，并将所述放大信号发送给驱动器，以使所述驱动器带动显示屏幕振动发声；以及
将所述低频信号发送给马达，以使所述马达带动中框振动，进而由所述中框带动所述显示屏幕振动发声。
可选的，所述马达与所述中框通过连接件连接；由所述连接件将所述马达转动的驱动力传递给所述中框，以使所述中框振动，进而由所述中框带动所述显示屏幕振动发声。
可选的，所述马达为线性柱状马达。
可选的，所述驱动器为压电式驱动器或者电磁式驱动器，其中，所述驱动 器与所述显示屏幕直接接触。
可选的，所述对音频信号进行模数转换处理，得到数字信号之前，所述方法还包括：
利用天线、传声器或者应用程序处理器获取音频信号。
一种终端，包括显示屏幕以及如权利要求1至5中任一项所述的屏幕发声控制装置。
从以上技术方案可以看出，本公开实施例，通过数字信号处理器对音频信号进行数字处理得到数字信号，进而通过编解码器对上述数字信号进行解码处理得到解码信号，通过分频器对上述解码信号进行分频处理，得到高频信号以及低频信号，其中，高频信号通过放大器的放大处理输入驱动器，由驱动器带动显示屏幕振动发声，低频信号输入马达，驱动马达转动带动中框振动，进而由中框带动显示屏幕振动发声，可以保证屏幕发声终端良好的低频响应效果。
附图概述
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，下面描述中的附图仅仅是本公开的一些实施例的附图。
图1是本公开实施例公开的一种屏幕发声控制装置的结构示意图；
图2是本公开实施例公开的另一种屏幕发声控制装置的结构示意图；
图3是本公开实施例公开的一种屏幕发声控制方法的流程示意图；
图4是本公开实施例公开的一种终端的结构示意图。
实施方式
为了使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开作地详细描述，所描述的实施例仅仅是本公开一部份实施例，而不是全部的实施例。本公开的说明书和权利要求书及上述附图中的术语“第一”和“第二”是用于区别不同对象，而非用于描述特定顺序。此外，术语“包括”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
本公开实施例提供了一种屏幕发声控制装置、方法及终端，可以保证屏幕发声终端的良好的低频响应效果。
请参阅图1，图1是本公开实施例公开的一种屏幕发声控制装置的结构示意图。其中，图1所示的屏幕发声控制装置包括：
数字信号处理器110、编解码器120、分频器130、放大器140、驱动器150、马达160以及中框170；
其中，上述数字信号处理器110的输出端连接上述编解码器120的输入端；上述编解码器120的输出端连接上述分频器130的输入端；上述分频器130有第一输出端和第二输出端，上述第一输出端连接上述放大器140的输入端，上述第二输出端连接上述马达160的输入端；上述马达160与上述中框170连接；上述放大器140的输出端连接上述驱动器150的输入端。
本公开实施例中，上述数字信号处理器110(Digital Signal Processing，DSP)用于对音频信号进行模数转换处理，得到数字信号，并将上述数字信号发送给上述编解码器120。
其中，数字信号处理器是进行数字信号处理的专用芯片，可以将连续的模拟音频信号转换为数字信号，按数字信号处理器的可编程性可分为可编程和不可编程两大类。不可编程的数字信号处理器以信号处理算法的流程为基本逻辑结构，没有控制程序，一般只能完成一种主要的处理功能，所以又称专用信号处理器。如快速傅里叶变换处理器、数字滤波器等。这类数字信号处理器虽然功能局限，但有较高的处理速度。可编程信号处理器则可通过编程改变处理器所要完成的功能，有较大的通用性，所以又称通用信号处理器。
上述编解码器120对上述数字信号进行解码，得到解码信号，并将上述解码信号发送给上述分频器130。
其中，编解码器是一个能够对一个信号或者一个数据流进行变换的设备或者程序。这里指的变换既包括将信号或者数据流进行编码(通常是为了传输、存储或者加密)或者提取得到一个编码流的操作，也包括为了观察或者处理从这个编码流中恢复适合观察或操作的形式的操作。
上述分频器130对上述解码信号进行分频处理得到两路输出信号，一路高频信号经过上述放大器140的放大处理触发上述驱动器150振动，进而带动显示屏幕振动发声，一路低频信号驱动上述马达160转动，进而带动上述中框170振动，并由上述中框170带动显示屏幕振动发声。
其中，分频器可以将输入的模拟音频信号分离成高频信号和低频信号。从电路结构来看，分频器本质上是由电容器和电感线圈构成的LC滤波网络，高音通道是高通滤波器，它只让高频信号通过而阻止低频信号；低音通道正好相反，它只让低音通过而阻止高频信号；中音通道则是一个带通滤波器，除了一低一高两个分频点之间的频率可以通过，高频成份和低频成份都将被阻止。在实际的分频器中，有时为了平衡高、低音单元之间的灵敏度差异，还要加入衰减电阻；另外，有些分频器中还加入了由电阻、电容构成的阻抗补偿网络，以便于功放驱动。
本公开实施例中，由分频器130分频得到的高频信号经过放大器140之后，触发驱动器150工作，驱动器150与显示屏幕直接接触，在放大器输出信号的驱动下发生形变，进而带动显示屏幕振动发声。而由分频器130分频得到的低频信号驱动马达160转动，马达160与中框170之间通过连接件连接，因此，连接件将马达160的驱动力传递给中框170，从而中框170产生振动，由于显示屏幕固定在中框170上，从而中框170带动显示屏幕振动发声。
可选地，上述马达160可以是线性柱状马达，其中，线性柱状马达结构简单，定位更精准，反应速度快、灵敏度高，随动性好。
可选地，上述驱动器150可以是压电式驱动器或者电磁式驱动器，并且驱动器150与显示屏幕直接接触。
其中，压电式驱动器是利用逆压电效应，将电能转变为机械能或机械运动的，它具有结构简单、低速、大力矩的优点。按驱动方式不同，压电式驱动器可分为刚性位移驱动器和谐振位移驱动器。刚性位移驱动器的驱动模式主要有多层式驱动器和单(双)晶片驱动器，此外还有Rainbow驱动器、Moonie驱动器和Cymbals驱动器等，几种模式在大小、质量、位移量及负载能力上都有自己的有特点。谐振位移驱动器(超声波电机)种类繁多，从毫米级的微型电机到厘米级的小型电机；从单自由度的直线电机到多自由度的平面电机和球型电机；从原理上有基于摩擦的超声波电机到利用声悬浮的非接触式超声波电机；从高分辨率的蠕动式电机到无磨损的压电-电流复合型步进电机。按照工作原理，可将超声波电机分为接触式和非接触式两种。
电磁式驱动器是利用电磁感应原理，通过改变输入电流及电磁铁与导磁体的气隙大小来控制磁力，进而实现非接触式电磁驱动的技术。
采用图1所示的屏幕发声控制装置，通过数字信号处理器对音频信号进行 数字处理得到数字信号，进而通过编解码器对上述数字信号进行解码处理得到解码信号，通过分频器对上述解码信号进行分频处理，分离高频信号以及低频信号，其中，高频信号通过放大器的放大处理输入驱动器，由驱动器带动显示屏幕振动发声，低频信号输入马达，驱动马达转动带动中框振动，进而由中框带动显示屏幕振动发声。实施本公开实施例，可以保证屏幕发声终端的良好的低频响应效果。
请参阅图2，图2是本公开实施例公开的另一种屏幕发声控制装置的结构示意图。其中，在图1所示的屏幕发声控制装置的基础上，图2所示的屏幕发声控制装置还包括：
连接件180，其中，上述连接件180的第一端与上述马达160连接，上述连接件180的第二端与上述中框170连接，用于将马达160转动的驱动力传递给中框170，从而由马达160带动中框170振动，进而由中框170带动显示屏幕振动发声。其中，连接件可以是弹性连轴器、齿轮、蜗轮蜗杆等，采用何种连接件可以由马达160与中框170的结构确定。
音频信号采集模块190，其中，音频信号采集模块190的输出端与上述数字信号处理器110的输入端连接，用于采集音频信号。
可选地，上述音频信号采集模块190可以是天线、传声器以及应用程序处理器中的一种或多种组合。其中，天线用于接收空中的通话语音信号，传声器用于接收多媒体语音信号(例如，录音语音信号、视频语音信号等)，应用程序处理器用于获取应用程序产生的音频信号(例如，提示信号等)。
请参阅图3，图3是本公开实施例公开的一种屏幕发声控制方法的流程示意图。其中，图3所示的屏幕发声控制方法可以包括以下步骤：
在步骤310中，利用天线、传声器或者应用程序处理器获取音频信号；
在步骤320中，对上述音频信号进行模数转换处理，得到数字信号，并对上述数字信号进行解码，得到解码信号；
在步骤330中，对上述解码信号进行分频处理，得到分频信号，其中，上述分频信号包括高频信号以及低频信号；
在步骤340中，对上述高频信号进行放大处理，得到放大信号，并将上述放大信号发送给驱动器，以使该驱动器驱动显示屏幕振动发声；
在步骤350中，将上述低频信号发送给马达，以使马达带动中框振动，并由中框带动显示屏幕振动发声。
本公开实施例中，音频信号可以是多媒体音频信号、通话语音信号或者振动提示信号等，例如可以由天线用于接收空中的通话语音信号，传声器用于接收多媒体语音信号(例如，录音语音信号、视频语音信号等)，应用程序处理器用于获取应用程序产生的音频信号(例如，提示信号等)。
通过在步骤310中获取音频信号之后，对该音频信号进行数字信号处理得到数字信号，然后对该数字信号进行解码处理得到解码信号，并对该解码信号进行分频处理，分别得到高频信号和低频信号，对该高频信号进行放大处理，并将放大后的高频信号发送给驱动器，由驱动器带动显示屏幕振动发声，同时将低频信号发送给马达，由于马达与中框接触，中框用来固定显示屏幕，因此马达带动中框振动，可选地，中框可以带动显示屏幕振动发声。
可选地，上述驱动器可以是压电式驱动器或者电磁式驱动器，并且驱动器与显示屏幕直接接触。
其中，压电式驱动器是利用逆压电效应，将电能转变为机械能或机械运动的，它具有结构简单、低速、大力矩的优点。按驱动方式不同，压电式驱动器可分为刚性位移驱动器和谐振位移驱动器。刚性位移驱动器的驱动模式主要有多层式驱动器和单(双)晶片驱动器，此外还有Rainbow驱动器、Moonie驱动器和Cymbals驱动器等，几种模式在大小、质量、位移量及负载能力上都有自己的特点。谐振位移驱动器(超声波电机)种类繁多，从毫米级的微型电机到厘米级的小型电机；从单自由度的直线电机到多自由度的平面电机和球型电机；从原理上有基于摩擦的超声波电机到利用声悬浮的非接触式超声波电机；从高分辨率的蠕动式电机到无磨损的压电-电流复合型步进电机。按照工作原理，可将超声波电机分为接触式和非接触式两种。
电磁式驱动器是利用电磁感应原理，通过改变输入电流及电磁铁与导磁体的气隙大小来控制磁力，进而实现非接触式电磁驱动的技术。
可选地，上述马达可以是线性柱状马达，其中，线性柱状马达结构简单，定位更精准，反应速度快、灵敏度高，随动性好。
可选地，马达与中框之间通过连接件连接，用于将马达转动的驱动力传递给中框，从而由马达带动中框振动，进而由中框带动显示屏幕振动发声。其中，连接件可以是弹性连轴器、齿轮、蜗轮蜗杆等，采用何种连接件可以由马达与中框的结构确定。
图3所示的屏幕发声控制方法，通过对音频信号进行数字处理得到数字信 号，进而对上述数字信号进行解码处理得到解码信号，然后对上述解码信号进行分频处理，分离高频信号以及低频信号，其中，高频信号通过放大处理输入驱动器，由驱动器带动显示屏幕振动发声，低频信号输入马达，驱动马达转动带动中框振动，进而由中框带动显示屏幕振动发声。实施本公开实施例，可以保证屏幕发声终端的良好的低频响应效果。
请参阅图4，图4是本公开实施例公开的一种终端的结构示意图，该终端包括显示屏幕和图1～图2提供的屏幕发声控制装置，其中，该终端可以包括智能手机、平板电脑、台式电脑、个人数字助理(Personal Digital Assistant，PDA)以及移动互联网设备(Mobile Internet Device，MID)等终端。
其中，屏幕发声控制装置用来控制显示屏幕振动发声。
需要说明的是，图4所示的终端400仅仅标示了终端400中用于执行本公开实施例公开的屏幕发声控制方法所需的组件，例如屏幕发声控制装置410和显示屏幕420，对于终端能够具备的其他组件本公开实施例不作标示，因为这不影响本公开实施例的实现。
需要说明的是，对于前述实施例的方法，为了简单描述，故将所述方法都表述为一系列的动作组合，但是本领域技术人员应该知悉，本公开并不受所描述的动作顺序的限制，因为依据本公开，一些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于可选实施例，所涉及的动作和模块并不一定是本公开所必须的。
在上述实施例中，对不同实施例的描述都有不同侧重点，其中一实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置，可通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部 单元来实现本实施例方案的目的。
另外，在本公开的实施例中的功能单元可以集成在一个处理单元中，也可以是多个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
本公开实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本公开实施例中的元器件可以根据实际需要进行合并、划分和删减。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括一些指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本公开多个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本公开的技术方案，而非对其限制；尽管参照前述实施例对本公开进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本公开实施例技术方案的范围。
工业实用性
本公开实施例通过数字信号处理器对音频信号进行数字处理得到数字信号，进而通过编解码器对上述数字信号进行解码处理得到解码信号，通过分频器对上述解码信号进行分频处理，得到高频信号以及低频信号，其中，高频信号通过放大器的放大处理输入驱动器，由驱动器带动显示屏幕振动发声，低频信号输入马达，驱动马达转动带动中框振动，进而由中框带动显示屏幕振动发声，可以保证屏幕发声终端良好的低频响应效果。

Claims (11)

  1. 一种屏幕发声控制装置，包括：数字信号处理器、编解码器、分频器、放大器、驱动器、马达以及中框；
    所述数字信号处理器的输出端连接所述编解码器的输入端；
    所述编解码器的输出端连接所述分频器的输入端；
    所述分频器有第一输出端和第二输出端，所述第一输出端连接所述放大器的输入端，所述第二输出端连接所述马达的输入端；
    所述马达与所述中框连接；
    所述放大器的输出端连接所述驱动器的输入端；
    所述数字信号处理器用于对音频信号进行模数转换处理，得到数字信号，并将所述数字信号发送给所述编解码器；
    所述编解码器用于对所述数字信号进行解码，得到解码信号，并将所述解码信号发送给所述分频器；以及
    所述分频器用于对所述解码信号进行分频处理得到两路输出信号，一路高频信号经过所述放大器的放大处理发送给所述驱动器，以使所述驱动器带动显示屏幕振动发声，一路低频信号驱动所述马达转动，以使所述马达带动所述中框振动，并由所述中框带动所述显示屏幕振动发声。
  2. 根据权利要求1所述的屏幕发声控制装置，还包括连接件；
    其中，所述连接件的第一端与所述马达连接，所述连接件的第二端与所述中框连接；
    所述连接件用于将所述马达转动的驱动力传递给所述中框，以使所述中框振动，进而由所述中框带动所述显示屏幕振动发声。
  3. 根据权利要求2所述的屏幕发声控制装置，其中，所述马达为线性柱状马达。
  4. 根据权利要求3所述的屏幕发声控制装置，其中，所述驱动器为压电式驱动器或者电磁式驱动器，其中，所述驱动器与所述显示屏幕直接接触。
  5. 根据权利要求1至4任意一项所述的屏幕发声控制装置，其中，所述屏幕发声控制装置还包括音频信号采集模块；
    其中，所述音频信号采集模块的输出端与所述数字信号处理模块的输入端连接；
    所述音频信号采集模块包括天线、传声器以及应用程序处理器中的一种或多种组合。
  6. 一种屏幕发声控制方法，包括：
    对音频信号进行模数转换处理，得到数字信号，并对所述数字信号进行解码，得到解码信号；
    对所述解码信号进行分频处理，得到分频信号，其中，所述分频信号包括高频信号以及低频信号；
    对所述高频信号进行放大处理，得到放大信号，并将所述放大信号发送给驱动器，以使所述驱动器带动显示屏幕振动发声；以及
    将所述低频信号发送给马达，以使所述马达带动中框振动，进而由所述中框带动所述显示屏幕振动发声。
  7. 根据权利要求6所述方法，其中，所述马达与所述中框通过连接件连接；由所述连接件将所述马达转动的驱动力传递给所述中框，以使所述中框振动，进而由所述中框带动所述显示屏幕振动发声。
  8. 根据权利要求7所述方法，其中，所述马达为线性柱状马达。
  9. 根据权利要求8所述方法，其中，所述驱动器为压电式驱动器或者电磁式驱动器，其中，所述驱动器与所述显示屏幕直接接触。
  10. 根据权利要求6至9任意一项所述方法，所述对音频信号进行模数转换处理，得到数字信号之前，所述方法还包括：
    利用天线、传声器或者应用程序处理器获取音频信号。
  11. 一种终端，包括显示屏幕以及如权利要求1至5中任一项所述的屏幕发声控制装置。
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