Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Referring to Fig. 1 and Fig. 2, Fig. 1 and Fig. 2 is amplitude detecting device figure provided in an embodiment of the present invention.As shown in Figure 1, vibration
Width detection device includes:
Loudspeaker 1, sound chamber 2, resonance circuit 3 and data processing module 4;
Wherein, the sound cavity plate 21 of the loudspeaker 1 and the sound chamber 2 is oppositely arranged, as shown in Fig. 2, the resonance circuit 3
Including the inductor 31 and capacitor 32 being connected in parallel.As shown in connection with fig. 1, the inductor 31 is set in the sound cavity plate 21,
The resonance circuit 3 is electrically connected with the data processing module 4;The vibrating diaphragm of the loudspeaker 1 has permeance;The data
Processing module 4 by obtain the distance between the loudspeaker 1 and the inductor 31, and be based on the loudspeaker 1 with it is described
The variation of the distance between inductor 31, determines the amplitude of the loudspeaker 1.
Inductor 31 is set in the sound cavity plate 21 of sound chamber 2.Specifically, can be inductance coil to be implanted into, patch or
The mode of etching, set on the position opposite with vibrating diaphragm of sound cavity plate.In this way, when amplitude detecting device is completed to install, loudspeaker 1
Vibrating diaphragm be oppositely arranged with inductor 31.The material of vibrating diaphragm is magnetically permeable material, for example, the alloy material of iron, cobalt, nickel,
The surface of vibrating diaphragm can be handled, make vibrating diaphragm that there is permeance.
As shown in Fig. 2, inductor 31 can be inductance coil, inductor 31 can formation resonance electricity in parallel with capacitor 32
Road 3.Since the vibrating diaphragm of loudspeaker 1 has permeance, in this way, can cause when loudspeaker 1 changes at a distance from inductor 31
The inductance value of inductor 31 changes, and the resonance frequency so as to cause resonance circuit 3 changes, and data processing module 4 can
To obtain the distance between loudspeaker and inductor by the variation for detecting resonance frequency, to detect the amplitude of loudspeaker.
It should be noted that capacitor 32 and data processing module 4 can be set to other components according to the actual situation
On, the present embodiment is not construed as limiting this.For example, data processing module 4 can be set to flexible circuit board (Flexible
Printed Circuit, abbreviation FPC) on.It is only for position shown in resonance circuit 3 and data processing module 4 in Fig. 1
Signal.
Specifically, it can be determined the amplitude of loudspeaker in the following way.
The resonance frequency of resonance circuit 3 can calculate according to the following formula,Wherein f is resonance frequency
Rate, L are the inductance value of inductor 31, and C is the capacitance of capacitor.
The inductance value L of inductor 31 can use formula table with the variation relation of the distance between inductor 31 and loudspeaker 1 D
Up to for L=L0+K/D2, wherein L is inductance value of the inductor 31 in working condition, L0When being in original state for inductor 31
Inductor initial value, K is constant, operating distance value of the D between loudspeaker 1 and inductor 31.
By the resonance of the distance between the available inductor 31 of above-mentioned two formula and loudspeaker 1 D and resonance circuit 3 frequency
The initial value L of rate f, the capacitance C of capacitor and inductor 310Between relationship:
In this way, can be by obtaining resonance frequency f, capacitance C and inductance initial value L0, to be obtained according to above-mentioned formula
Operating distance D between inductor 31 and loudspeaker 1 at work.
Furthermore it is possible to obtain loudspeaker 1 and inductor 31 is in initial distance value D under original state0, the original state
It can be understood as original state of the loudspeaker in not sounding, and obtain operating distance D and initial distance D0Difference, the difference
The as real-time amplitude of loudspeaker at work.
In this way, due to not needing to increase other substances on the diaphragm of loudspeaker, will not influence when carrying out amplitude detection
The performance of loudspeaker, therefore, the better performances of loudspeaker.
Optionally, as shown in figure 3, described device further includes power amplification system 5, the data processing module 4 and the power amplifier
System 5 is electrically connected, and the power amplification system 5 is electrically connected with the loudspeaker 1;
The data processing module 4 sends the amplitude detected to the power amplification system 5, and the power amplification system 5 is according to institute
State the signal strength in amplitude adjustment signal source.
In this embodiment, data processing module 4 can send the amplitude of the loudspeaker 1 detected to power amplification system 5,
Power amplification system 5 judges whether the amplitude is greater than default amplitude, if the amplitude of loudspeaker 1 is greater than default amplitude, power amplification system 5 will
The signal strength of signal source reduces.
In this way, amplitude detecting device can protect loudspeaker, mention according to the signal strength in the amplitude adjustment signal source of detection
The performance of high loudspeaker extends the service life of loudspeaker.
Optionally, as shown in figure 3, the predeterminable area of the vibrating diaphragm has permeance, the predeterminable area is plane;
The inductor is set to the position with the plane face of the sound cavity plate.
In this embodiment, the film top of the vibrating diaphragm of loudspeaker 1 is equipped with a plane domain 11, which, which has, leads
Magnetic characteristic, inductor 31 and plane domain 11 are to just.In this way, loudspeaker 1 changes at a distance from inductor can change electricity
Inductance value, and the variation of inductance value is sensitive, and the sensitivity of detected amplitude can be improved.
The embodiment of the present invention also provides a kind of mobile terminal, which includes described in any of the above-described embodiment
Amplitude detecting device.Since the mobile terminal includes above-mentioned amplitude detecting device, which has with above-mentioned amplitude detection
The identical beneficial effect of device, details are not described herein again.
Referring to fig. 4, Fig. 4 is the flow chart of amplitude detection method provided in an embodiment of the present invention.Amplitude detection method application
In mobile terminal, which includes the amplitude detecting device in above-described embodiment.As shown in figure 4, amplitude detection method packet
It includes:
Step 401, when the amplitude detecting device is in original state, obtain initial between loudspeaker and inductor
Distance value, the original state are the state when amplitude detecting device is static.
Wherein, above-mentioned original state can be understood as state when amplitude detecting device does not work, at this point, loudspeaker is not sent out
Sound, loudspeaker and inductor remain static.At initial distance value, that is, amplitude detecting device between loudspeaker and inductor
Distance value under above-mentioned original state.
Step 402, when the amplitude detecting device is in running order, obtain the loudspeaker and the inductor it
Between operating distance value, the working condition be the amplitude detecting device work when state.
Wherein, above-mentioned working condition can be understood as amplitude detecting device and work, shape when loudspeaker vibration sounding
State.The vibration of loudspeaker changes the distance between loudspeaker and inductor, when any under available above-mentioned working condition
The loudspeaker at quarter and the distance value of inductor.
Step 403, the amplitude that the loudspeaker is calculated based on the initial distance value and the operating distance value.
In this step, the difference that operating distance value Yu initial distance value can be calculated, using the difference as any moment
Loudspeaker amplitude.
In the embodiment of the present invention, above-mentioned mobile terminal can be mobile phone, tablet computer (Tablet Personal
Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital
Assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device, MID), wearable device
Any mobile terminal in (Wearable Device) etc..
The amplitude detection method of the embodiment of the present invention obtains loudspeaking when the amplitude detecting device is in original state
Initial distance value between device and inductor;When the amplitude detecting device is in running order, obtain the loudspeaker with
Operating distance value between the inductor;The loudspeaker is calculated based on the initial distance value and the operating distance value
Amplitude.When carrying out amplitude detection, since the detection method does not need to increase other substances, Bu Huiying on the diaphragm of loudspeaker
Ring the performance of loudspeaker, therefore, the better performances of loudspeaker.
Referring to Fig. 5, Fig. 5 is the flow chart of amplitude detection method provided in an embodiment of the present invention.The present embodiment and above-mentioned reality
The difference for applying example is the resonance frequency of initial value and working value, the capacitance of capacitor and resonance circuit based on inductor
Calculate the operating distance value between loudspeaker and inductor.Amplitude detection method the following steps are included:
Step 501, when the amplitude detecting device is in original state, obtain the initial value and capacitor of the inductor
The capacitance of device, the original state are the state when amplitude detecting device is static;
Wherein, above-mentioned original state can be understood as state when amplitude detecting device does not work, at this point, loudspeaker is not sent out
Sound, loudspeaker and inductor remain static.The initial value of inductor can be electricity of the inductor under above-mentioned original state
Inductance value, i.e. the inductance value of inductor have not been changed before value.
Initial distance value between step 502, acquisition loudspeaker and inductor.
In this step, using the current distance value between the inductor and the loudspeaker as the initial distance
Value, when the current distance value is that the variable quantity of the inductance value of the inductor reaches preset value, the loudspeaker and the electricity
The distance between sensor.
Wherein, the initial distance value between loudspeaker and inductor can be understood as amplitude detecting device and be in above-mentioned initial
Under state, distance value between loudspeaker and inductor, the distance value can be loudspeaker with permeance plane diaphragm with
The distance between inductor.
Specifically, the inductance value of inductor can be changed, and variable quantity reaches the inductance detected when preset value
The distance between device and loudspeaker are used as initial distance.Due in the production process, between actual loudspeaker and inductor
Distance at a distance from design may there is a certain error, and the vibration of loudspeaker may result in distance during the work time
There is a certain error.In this way, obtaining distance when default variation occurs for inductance value, it is possible to reduce the error of the distance.
It should be noted that the step can be performed simultaneously with step 501, it can also be before or after step 501
It executes.
Step 503, when the amplitude detecting device is in running order, obtain the amplitude detecting device resonance electricity
The resonance frequency on road;The work of the inductor is obtained according to the capacitance of the resonance frequency of the resonance circuit and the capacitor
Work value, and the loudspeaker according to the calculation of initial value of the working value of the inductor and the inductor and the inductor it
Between operating distance value, wherein the working condition be the amplitude detecting device work when state.
Wherein, above-mentioned working condition can be understood as amplitude detecting device and work, state when loudspeaker vibration.It raises
The vibration of sound device changes the distance between loudspeaker and inductor, and the change of the distance can cause inductance value to change, from
And the resonance frequency of resonance circuit is caused to change.The loudspeaker and inductor of any moment under available above-mentioned working condition
Distance value, resonance circuit resonance frequency, the inductance value of inductor.
Specifically, it can carry out calculating the operating distance value of loudspeaker and inductor in the following way.
Relationship between the resonance frequency of resonance circuit, the inductance value of inductor and the capacitance of capacitor can be expressed asWherein f is resonance frequency, and L is the inductance value of inductor, and C is the capacitance of capacitor, according to resonance frequency
The inductance working value of rate and the available inductor of capacitance.
The inductance value L of inductor can be expressed as with the variation relation of the distance between inductor and loudspeaker 1 D with formula
L=L0+K/D2, wherein L is the inductance value of inductor in the operating condition, L0Inductor when original state is in for inductor
Initial value, K is constant, operating distance value of the D between loudspeaker 1 and inductor.It can be according to the work of the inductor of acquisition
The operating distance between inductor and loudspeaker is calculated according to above-mentioned formula for the initial value of work value and inductor.
In addition, the humorous of the distance between inductor and loudspeaker D and resonance circuit can also be obtained by above-mentioned two formula
The initial value L of vibration frequency f, the capacitance C of capacitor and inductor0Between relationship:
In this way, according to the resonance frequency f of acquisition, capacitance C and inductance initial value L0, and can be shaken according to the formula
Width detection device at work, the operating distance D between inductor and loudspeaker.
Optionally, in the resonance frequency of the resonance circuit for obtaining the amplitude detecting device and the inductor
After the step of working value, in the amplitude for calculating the loudspeaker based on the initial distance value and the operating distance value
The step of before, the method also includes:
Judge whether the resonance frequency is less than predeterminated frequency value;If the resonance frequency is less than the predeterminated frequency value,
The amplitude of the loudspeaker is then calculated based on the initial distance value and the operating distance value.
In this embodiment, the threshold value of resonance frequency can be preset.When mobile terminal detects the humorous of resonance circuit
When vibration frequency, it can be determined that whether the resonance frequency is less than predeterminated frequency value.If being less than predeterminated frequency value, it may result in and raise
The amplitude of sound device is larger, then needs to detect the amplitude of loudspeaker.If resonance frequency is greater than predeterminated frequency, the amplitude of loudspeaker compared with
It is small, the amplitude of loudspeaker can not be detected.
In this way, detecting the amplitude of loudspeaker when resonance frequency is less than predeterminated frequency value, it is possible to reduce time of amplitude detection
Number, can save electric energy, the detection efficiency of amplitude can be improved.
Step 504, the amplitude that the loudspeaker is calculated based on the initial distance value and the operating distance value.
In this step, the difference that operating distance value Yu initial distance value can be calculated, using the difference as any moment
Loudspeaker amplitude.
Optionally, in the amplitude for calculating the loudspeaker based on the initial distance value and the operating distance value
After step, the method also includes:
Judge whether the amplitude is greater than default amplitude;If the amplitude is greater than the default amplitude, will cause
The signal strength weakening of the signal source of the loudspeaker vibration.
In this embodiment, the performance of loudspeaker can be had an impact since loudspeaker long-time amplitude is bigger, it is mobile
Terminal can preset amplitude threshold.When detecting the amplitude of loudspeaker, it is preset to judge whether the amplitude is greater than
Amplitude.If the amplitude of loudspeaker is greater than preset threshold, the signal of signal source is weakened, to reduce the amplitude of loudspeaker.Tool
Body, after the data processing module of amplitude detecting device detects the amplitude of loudspeaker, the amplitude can be sent to power amplification system,
If power amplification system judges that the amplitude is greater than default amplitude, the signal of signal source is weakened.In this way, the property of loudspeaker can be improved
Can, so as to extend the service life of loudspeaker.
The embodiment of the present invention, initial value and working value of the mobile terminal based on inductor, the capacitance of capacitor and humorous
The resonance frequency of vibration circuit calculates the operating distance value between loudspeaker and inductor, and based on operating distance and initial distance
Calculate the amplitude of loudspeaker.In this way, the detection mode does not need to increase other substances on a speaker, the better performances of loudspeaker.
Referring to Fig. 6, a kind of hardware structural diagram of Fig. 6 mobile terminal of each embodiment to realize the present invention is mobile
Terminal include but is not limited to be such as mobile phone, tablet computer, laptop, palm PC, navigation device, wearable device,
The mobile terminals such as Intelligent bracelet, pedometer.The mobile terminal 600 includes but is not limited to: radio frequency unit 601, network module 602,
Audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit
608, the components such as memory 609, processor 610 and power supply 611.It will be understood by those skilled in the art that shown in Fig. 6
Mobile terminal structure does not constitute the restriction to mobile terminal, and mobile terminal may include components more more or fewer than diagram,
Perhaps certain components or different component layouts are combined.
It is specifically introduced below with reference to all parts of the Fig. 6 to mobile terminal:
Radio frequency unit 601 can be used for receiving and sending messages or communication process in, signal sends and receivees, specifically, by base station
Downlink information receive after, to processor 610 handle;In addition, the data of uplink are sent to base station.In general, radio frequency unit 601
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrating
Frequency unit 601 can also be communicated with network and other equipment by wireless communication.Any communication can be used in above-mentioned wireless communication
Standard or agreement, including but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, frequency division duplex long term evolution), TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex long term evolution), Wi-Fi module, NFC module and bluetooth module
Deng.
Mobile terminal can help user to send and receive e-mail, browse webpage and access streaming matchmaker by network module 602
Body etc., it provides wireless broadband internet access for user, network module 602 include but is not limited to be RJ45 port module
Deng.
Audio output unit 603 can be in call signal reception pattern, call mode, record mould in mobile terminal 600
When under the isotypes such as formula, speech recognition mode, broadcast reception mode, by radio frequency unit 601 or network module 602 it is received or
The audio data stored in memory 609 is converted into audio signal and exports to be sound.Moreover, audio output unit 603
Audio output relevant to the specific function that mobile terminal 600 executes can also be provided (for example, call signal receives sound, disappears
Breath receives sound etc.).Audio output unit 603 includes loudspeaker, buzzer and receiver etc..
Input unit 604 can be audio or video input unit, for receiving audio or video signal.Input unit
604 may include graphics processor (Graphics Processing Unit, GPU) 6041 and microphone 6042, graphics process
Device 6041 is to the static images obtained in video acquisition mode or image capture mode by image capture apparatus (such as camera)
Or the image data of video is handled.Treated, and picture frame may be displayed on display unit 606.Through graphics processor
6041 treated picture frame can store in memory 609 (or other storage mediums) or via radio frequency unit 601 or
Network module 602 is sent.Microphone 6042 can be transported in telephone calling model, logging mode, speech recognition mode etc.
Sound (audio data) is received via microphone 6042 in row mode, and can be audio data by such acoustic processing.
Audio that treated (voice) data can be converted in the case where telephone calling model and can be sent to via radio frequency unit 601
The format of mobile communication base station exports.
Mobile terminal 600 further includes at least one sensor 605, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 6061, and proximity sensor can close when mobile terminal 600 is moved in one's ear
Display panel 6061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, it can detect that size and the direction of gravity when static, can be used to identify answering for mobile terminal posture
With (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion)
Deng;The fingerprint sensor that can also configure as mobile terminal, pressure sensor, iris sensor, molecule sensor, gyroscope,
The other sensors such as barometer, hygrometer, thermometer, infrared sensor, details are not described herein.
Display unit 606 is for showing information input by user or being supplied to the information of user.Display unit 606 can wrap
Display panel 6061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 6061.
User input unit 607 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family setting and the related key signals input of function control.Specifically, user input unit 607 may include touch panel 6071 with
And other input equipments 6072.Touch panel 6071, also referred to as touch screen collect the touch operation of user on it or nearby
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 6071 or in touch panel 6071
Neighbouring operation), and corresponding attachment device is driven according to preset formula.Touch panel 6071 may include touch detection
Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band
The signal come, transmits a signal to touch controller;Touch controller receives touch information from touch detecting apparatus, and by it
It is converted into contact coordinate, then gives processor 610, and order that processor 610 is sent can be received and executed.In addition, can
To realize touch panel 6071 using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel
6071, user input unit 607 can also include other input equipments 6072.Specifically, other input equipments 6072 can wrap
It includes but is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating stick etc.
It is one or more, specifically herein without limitation.
Further, touch panel 6071 can cover display panel 6061, when touch panel 6071 detect on it or
After neighbouring touch operation, processor 610 is sent to determine the type of touch event, is followed by subsequent processing device 610 according to touch thing
The type of part provides corresponding visual output on display panel 6061.Although in Fig. 6, touch panel 6071 and display panel
6061 be the function that outputs and inputs of realizing mobile terminal as two independent components, but in certain embodiments, it can
The function that outputs and inputs of mobile terminal is realized so that touch panel 6071 and display panel 6061 is integrated, is not done herein specifically
It limits.
Interface unit 608 be used as at least one external device (ED) connect with mobile terminal 600 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 608 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 600 or can be with
For transmitting data between mobile terminal 600 and external device (ED).
Memory 609 can be used for storing software program and various data.Memory 609 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.;Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 609 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 610 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 609, and calls and is stored in storage
Data in device 609 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Managing device 610 may include one or more processing units;Preferably, processor 610 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 610.
Mobile terminal 600 can also include the power supply 611 (such as battery) powered to all parts, it is preferred that power supply 611
Can be logically contiguous by power-supply management system and processor 610, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
Mobile terminal 600 further includes amplitude detecting device described in the various embodiments described above.
In addition, mobile terminal 600 includes some unshowned functional modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, including processor 610, and memory 609 is stored in
On memory 609 and the computer program that can run on the processor 610, the computer program are executed by processor 610
Each process of the above-mentioned amplitude detection embodiment of the method for Shi Shixian, and identical technical effect can be reached, to avoid repeating, here
It repeats no more.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each process of above-mentioned amplitude detection embodiment of the method, and energy when being executed by processor
Reach identical technical effect, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium, such as only
Read memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation
RAM), magnetic or disk etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.