CN106303775A - Mobile terminal and mobile terminal pickup optimization method - Google Patents
Mobile terminal and mobile terminal pickup optimization method Download PDFInfo
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- CN106303775A CN106303775A CN201510363395.6A CN201510363395A CN106303775A CN 106303775 A CN106303775 A CN 106303775A CN 201510363395 A CN201510363395 A CN 201510363395A CN 106303775 A CN106303775 A CN 106303775A
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- mobile terminal
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Abstract
Disclosure embodiment provides a kind of mobile terminal and mobile terminal pickup optimization method, described mobile terminal includes sound pick up equipment, described sound pick up equipment includes mike and the analog-digital converter being connected with described mike, the running voltage of described mike is higher than designated value, and in described analog-digital converter, analogue signal is arranged according to the running voltage of described mike with the mapping relations of digital signal.Mike and the analog-digital converter of mobile terminal sound pick up equipment are the most relatively independent, and are regarded as an entirety and are designed, manufacture.The raising of microphone works voltage makes the maximum of sound pick up equipment can bear sound pressure level to be also enhanced, it is meant that mobile terminal can record bigger sound；The raising of microphone works voltage also can promote the signal to noise ratio of sound pick up equipment simultaneously, also implies that mobile terminal can record less sound.So be greatly improved the pickup performance of mobile terminal, make it possible to capture catch before less than sound.
Description
Technical field
It relates to communication technical field, particularly relate to a kind of mobile terminal and mobile terminal pickup optimization method.
Background technology
The sound pick up equipment of mobile terminal would generally relate to maximum signal to noise ratio (max SNR, Signal Noise Ratio) and maximum
Sound pressure level (max SPL, Sound Pressure Level) the two parameter can be born, it is ensured that the two parameter is the most permissible
Carry out sound pick up equipment.Microphone (mike) in sound pick up equipment itself generally can bear the biggest sound pressure level and can
With the signal to noise ratio that offer is the biggest, receive ADC (Analog-to-Digital Converter, the analog digital conversion of microphone
Device) chip matches with microphone, lossless for the analogue signal of microphone output or the conversion of least disadvantage
Become digital signal.
Summary of the invention
For overcoming problem present in correlation technique, the disclosure provides mobile terminal and mobile terminal pickup optimization method, to carry
The pickup performance of high mobile terminal.
First aspect according to disclosure embodiment, it is provided that a kind of mobile terminal, described mobile terminal includes sound pick up equipment, institute
Stating sound pick up equipment and include mike and the analog-digital converter being connected with described mike, the running voltage of described mike is higher than referring to
Definite value, in described analog-digital converter, analogue signal is arranged according to the running voltage of described mike with the mapping relations of digital signal.
Optionally, described designated value is 1.8V.
Optionally, the running voltage of described mike is 2V.
Optionally, described mobile terminal is mobile phone or panel computer.
Second aspect according to disclosure embodiment, it is provided that a kind of mobile terminal pickup optimization method, described mobile terminal includes
Sound pick up equipment, described sound pick up equipment includes mike and the analog-digital converter being connected with described mike, and described method includes:
The running voltage of described mike is improved more than designated value；
Running voltage according to described mike arranges analogue signal and the mapping relations of digital signal in described analog-digital converter.
Optionally, described designated value is 1.8V.
Optionally, the running voltage of described mike is 2V.
Optionally, described mobile terminal is mobile phone or panel computer.
Embodiment of the disclosure that the technical scheme of offer can include following beneficial effect:
In the disclosed embodiments, mike and the analog-digital converter of mobile terminal sound pick up equipment are the most relatively independent, but quilt
It is considered as an entirety to be designed, manufacture.The running voltage of mike is increased to more than designated value, in order to adapt to Mike
The raising of wind running voltage, in analog-digital converter, analogue signal is the most unalterable with the mapping relations of digital signal, but
Running voltage according to mike is configured.The raising of microphone works voltage makes the maximum of sound pick up equipment can bear sound
Arbitrarily downgrade and be also enhanced, it is meant that mobile terminal can record bigger sound；The raising of microphone works voltage also can carry simultaneously
Rise the signal to noise ratio of sound pick up equipment, also imply that mobile terminal can record less sound.So it is greatly improved mobile terminal
Pickup performance, make it possible to capture catch before less than sound.
It should be appreciated that it is only exemplary and explanatory that above general description and details hereinafter describe, can not limit
The disclosure processed.
Accompanying drawing explanation
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet embodiments of the invention,
And for explaining the principle of the present invention together with description.
Fig. 1 is the schematic diagram according to a kind of mobile terminal shown in an exemplary embodiment；
Fig. 2 is the circuit diagram according to the sound pick up equipment shown in an exemplary embodiment；
Fig. 3 is the flow chart according to a kind of mobile terminal pickup optimization method shown in an exemplary embodiment；
Fig. 4 is the block diagram according to a kind of device for pickup shown in an exemplary embodiment.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to accompanying drawing
Time, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.In following exemplary embodiment
Described embodiment does not represent all embodiments consistent with the present invention.On the contrary, they are only and the most appended power
The example of the apparatus and method that some aspects that described in detail in profit claim, the present invention are consistent.
Fig. 1 is the schematic diagram according to a kind of mobile terminal shown in an exemplary embodiment.
Shown in Figure 1, mobile terminal 100 includes that sound pick up equipment 101, described sound pick up equipment 101 include mike 102 He
The analog-digital converter 103 being connected with described mike, the running voltage of described mike 102 is higher than designated value, and described modulus turns
In parallel operation 103, analogue signal is arranged according to the running voltage of described mike 102 with the mapping relations of digital signal.
In other alternative embodiment of the present embodiment or the disclosure, described designated value can be 1.8V.
In other alternative embodiment of the present embodiment or the disclosure, the running voltage of described mike can be 2V.
In other alternative embodiments of the present embodiment or the disclosure, described mobile terminal can be mobile phone or panel computer.
Mike can include two parts, and a part is vibrating diaphragm, and another part is amplifier (i.e. operational amplifier).As example
Can be found in shown in Fig. 2, mike is connected with codec circuit (codec IC) in fig. 2, and mike can include shaking
Film and amplifier, codec circuit can include ADC and DSP, and the running voltage of vibrating diaphragm is VDD1, the running voltage of ADC is
VDD2, VDD1And VDD2Occurrence can according to circumstances be set.
In the related, it is provided that the manufacturer of the manufacturer of mike and offer ADC is the most same, in order to make two parts
Device can combine and normally work, and the running voltage of mike is the most all defined as 1.8V, namely the work electricity of amplifier
Pressure is 1.8V.And in embodiment of the disclosure, improve this running voltage, such as bring up to 2V from 1.8V.Improve wheat
Gram wind running voltage major advantage is that and mike can be made to bear bigger input signal without causing signal wave elimination,
This is just that the sensitivity heightening vibrating diaphragm provides space, and namely maximum S/N R for lifting mike improves space；Permissible
Making mike bear bigger input signal, this also implies that the maximum sound pressure level that mike can bear becomes big.Slicing is
Refer to: if signal level is too strong, exceeding circuit allowed band (threshold value), signal cannot pass through, and its waveform is reamed
A part, just creates slicing.
The analogue signal that the effect of ADC is transmitted through mike exactly is converted into digital signal, and digital signal maximum is 0dBFS.
As example, in the related, the analogue signal of acquiescence is converted into the mapping relations of digital signal and may is that 0dBV is (also
I.e. 1V)=0dBFS ,-1dBV=-1dBFS ..., can be found in shown in table 1, if the signal more than 1dBV, bring
Result is exactly slicing.
Table 1
| Simulation | Numeral | |
| 0dBV | -------→ | 0dBFS |
| -1dBV | -------→ | -1dBFS |
| -2dBV | -------→ | -2dBFS |
| -3dBV | -------→ | -3dBFS |
| -4dBV | -------→ | -4dBFS |
| -5dBV | -------→ | -5dBFS |
In the present embodiment, because the running voltage of mike is enhanced, so modulus mapping relations are also required to carry out accordingly
Adjust, such as, may be turned into 6dBV (namely 2V)=0dBFS, 5dBV=-1dBFS ..., can be found in shown in table 2:
Table 2
| Simulation | Numeral | |
| 6dBV | -------→ | 0dBFS |
| 5dBV | -------→ | -1dBFS |
| 4dBV | -------→ | -2dBFS |
| 3dBV | -------→ | -3dBFS |
| 2dBV | -------→ | -4dBFS |
| 1dBV | -------→ | -5dBFS |
By this embodiment, mike and the analog-digital converter of mobile terminal sound pick up equipment are the most relatively independent, and are regarded as
One entirety is designed, manufactures.The running voltage of mike is increased to more than designated value, in order to adapt to mike work
Making the raising of voltage, in analog-digital converter, analogue signal is the most unalterable with the mapping relations of digital signal, but according to
The running voltage of mike is configured.The raising of microphone works voltage makes the maximum of sound pick up equipment can bear sound pressure level
Also it is enhanced, it is meant that mobile terminal can record bigger sound；The raising of microphone works voltage also can promote simultaneously and pick up
The signal to noise ratio of mixer, also implies that mobile terminal can record less sound.So it is greatly improved picking up of mobile terminal
Sound performance, make it possible to capture catch before less than sound.
Fig. 3 is the flow chart according to a kind of mobile terminal pickup optimization method shown in an exemplary embodiment.Described mobile whole
End includes that sound pick up equipment, described sound pick up equipment include mike and the analog-digital converter being connected with described mike, described method
Including:
In step S301, the running voltage of described mike is improved more than designated value.
In step s 302, analogue signal and numeral letter in described analog-digital converter are set according to the running voltage of described mike
Number mapping relations.
In other alternative embodiments of the present embodiment or the disclosure, described designated value is 1.8V.
In other alternative embodiments of the present embodiment or the disclosure, the running voltage of described mike is 2V.
In other alternative embodiments of the present embodiment or the disclosure, described mobile terminal can be mobile phone or panel computer.
Fig. 4 is the block diagram according to a kind of device for pickup shown in an exemplary embodiment.Such as, this device 2800 can
To be mobile phone, computer, digital broadcast terminal, messaging devices, game console, tablet device, medical treatment sets
Standby, body-building equipment, personal digital assistant etc..
With reference to Fig. 4, device 2800 can include following one or more assembly: processes assembly 2802, memorizer 2804, electricity
Source component 2806, multimedia groupware 2808, audio-frequency assembly 2810, the interface 2812 of input/output (I/O), sensor
Assembly 2814, and communications component 2816.
Process assembly 2802 and generally control the integrated operation of device 2800, such as with display, call, data communication,
The operation that camera operation and record operation are associated.Process assembly 2802 and can include that one or more processor 2820 is held
Row instruction, to complete all or part of step of above-mentioned method.Can include one or more additionally, process assembly 2802
Module, it is simple to process between assembly 2802 and other assemblies is mutual.Such as, process assembly 2802 and can include multimedia
Module, with facilitate multimedia groupware 2808 and process between assembly 2802 mutual.
Memorizer 2804 is configured to store various types of data to support the operation at equipment 2800.Showing of these data
Example include on device 2800 operation any application program or the instruction of method, contact data, telephone book data,
Message, picture, video etc..Memorizer 2804 can by any kind of volatibility or non-volatile memory device or they
Combination realize, such as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM), can
Erasable programmable read-only memory (EPROM) (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic storage
Device, flash memory, disk or CD.
The various assemblies that power supply module 2806 is device 2800 provide electric power.Power supply module 2806 can include power management system
System, one or more power supplys, and other generate, manage and distribute, with for device 2800, the assembly that electric power is associated.
The screen of one output interface of offer that multimedia groupware 2808 is included between described device 2800 and user.One
In a little embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel,
Screen may be implemented as touch screen, to receive the input signal from user.Touch panel includes that one or more touch passes
Sensor is with the gesture on sensing touch, slip and touch panel.Described touch sensor can not only sense touch or slide dynamic
The border made, but also detect the persistent period relevant to described touch or slide and pressure.In certain embodiments,
Multimedia groupware 2808 includes a front-facing camera and/or post-positioned pick-up head.When device 2800 is in operator scheme, as clapped
When taking the photograph pattern or video mode, front-facing camera and/or post-positioned pick-up head can receive the multi-medium data of outside.Each preposition
Photographic head and post-positioned pick-up head can be a fixing optical lens system or have focal length and optical zoom ability.
Audio-frequency assembly 2810 is configured to output and/or input audio signal.Such as, audio-frequency assembly 2810 includes a Mike
Wind (MIC), when device 2800 is in operator scheme, during such as call model, logging mode and speech recognition mode, mike
It is configured to receive external audio signal.The audio signal received can be further stored at memorizer 2804 or via logical
Letter assembly 2816 sends.In certain embodiments, audio-frequency assembly 2810 also includes a speaker, is used for exporting audio frequency letter
Number.
I/O interface 2812 provides interface for processing between assembly 2802 and peripheral interface module, above-mentioned peripheral interface module is permissible
It is keyboard, puts striking wheel, button etc..These buttons may include but be not limited to: home button, volume button, start button and
Locking press button.
Sensor cluster 2814 includes one or more sensor, for providing the state estimation of various aspects for device 2800.
Such as, what sensor cluster 2814 can detect equipment 2800 opens/closed mode, the relative localization of assembly, such as institute
Stating display and keypad that assembly is device 2800, sensor cluster 2814 can also detect device 2800 or device 2800
The position change of one assembly, the presence or absence that user contacts with device 2800, device 2800 orientation or acceleration/deceleration
Variations in temperature with device 2800.Sensor cluster 2814 can include proximity transducer, is configured to the most any
Physical contact time detection near the existence of object.Sensor cluster 2814 can also include optical sensor, such as CMOS or CCD
Imageing sensor, for using in imaging applications.In certain embodiments, this sensor cluster 2814 can also include adding
Velocity sensor, gyro sensor, Magnetic Sensor, pressure transducer or temperature sensor.
Communications component 2816 is configured to facilitate the communication of wired or wireless mode between device 2800 and other equipment.Device
2800 can access wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof.An example
Property embodiment in, communications component 2816 via broadcast channel receive from external broadcasting management system broadcast singal or broadcast phase
Pass information.In one exemplary embodiment, described communications component 2816 also includes near-field communication (NFC) module, to promote
Enter junction service.Such as, can be based on RF identification (RFID) technology in NFC module, Infrared Data Association (IrDA) skill
Art, ultra broadband (UWB) technology, bluetooth (BT) technology and other technologies realize.
In the exemplary embodiment, device 2800 can be by one or more application specific integrated circuits (ASIC), numeral letter
Number processor (DSP), digital signal processing appts (DSPD), PLD (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components realize, for performing the said method of end side.
In the exemplary embodiment, additionally provide a kind of non-transitory computer-readable recording medium including instruction, such as, wrap
Including the memorizer 2804 of instruction, above-mentioned instruction can have been performed said method by the processor 2820 of device 2800.Such as,
Described non-transitory computer-readable recording medium can be ROM, random access memory (RAM), CD-ROM, tape, soft
Dish and optical data storage devices etc..
Those skilled in the art, after considering description and putting into practice invention disclosed herein, will readily occur to other reality of the present invention
Execute scheme.The application is intended to any modification, purposes or the adaptations of the present invention, these modification, purposes or
Adaptations is followed the general principle of the present invention and includes the undocumented common knowledge or used in the art of the disclosure
Use technological means.Description and embodiments is considered only as exemplary, and true scope and spirit of the invention are by appended right
Requirement is pointed out.
It should be appreciated that the invention is not limited in precision architecture described above and illustrated in the accompanying drawings, and can
To carry out various modifications and changes without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (8)
1. a mobile terminal, it is characterised in that described mobile terminal includes that sound pick up equipment, described sound pick up equipment include Mike
Wind and the analog-digital converter being connected with described mike, the running voltage of described mike is higher than designated value, described analog digital conversion
In device, analogue signal is arranged according to the running voltage of described mike with the mapping relations of digital signal.
Mobile terminal the most according to claim 1, it is characterised in that described designated value is 1.8V.
Mobile terminal the most according to claim 2, it is characterised in that the running voltage of described mike is 2V.
Mobile terminal the most according to claim 1, it is characterised in that described mobile terminal is mobile phone or panel computer.
5. a mobile terminal pickup optimization method, it is characterised in that described mobile terminal includes sound pick up equipment, described pickup
Device includes mike and the analog-digital converter being connected with described mike, and described method includes:
The running voltage of described mike is improved more than designated value；
Running voltage according to described mike arranges analogue signal and the mapping relations of digital signal in described analog-digital converter.
Method the most according to claim 5, it is characterised in that described designated value is 1.8V.
Method the most according to claim 6, it is characterised in that the running voltage of described mike is 2V.
Method the most according to claim 5, it is characterised in that described mobile terminal is mobile phone or panel computer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363395.6A CN106303775B (en) | 2015-06-26 | 2015-06-26 | Mobile terminal and mobile terminal pickup optimization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363395.6A CN106303775B (en) | 2015-06-26 | 2015-06-26 | Mobile terminal and mobile terminal pickup optimization method |
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| CN106303775B CN106303775B (en) | 2019-12-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102695113A (en) * | 2011-03-11 | 2012-09-26 | 快捷半导体(苏州)有限公司 | Temperature compensation system and temperature compensation method |
| US20120269363A1 (en) * | 2009-06-29 | 2012-10-25 | Nokia Corporation | Temperature compensated microphone |
| CN103125071A (en) * | 2010-08-18 | 2013-05-29 | 美国亚德诺半导体公司 | Charge sharing analog computation circuitry and applications |
-
2015
- 2015-06-26 CN CN201510363395.6A patent/CN106303775B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120269363A1 (en) * | 2009-06-29 | 2012-10-25 | Nokia Corporation | Temperature compensated microphone |
| CN103125071A (en) * | 2010-08-18 | 2013-05-29 | 美国亚德诺半导体公司 | Charge sharing analog computation circuitry and applications |
| CN102695113A (en) * | 2011-03-11 | 2012-09-26 | 快捷半导体(苏州)有限公司 | Temperature compensation system and temperature compensation method |
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