CN105282310B - The sound signal transmission method and its message Transmission system of mobile device - Google Patents
The sound signal transmission method and its message Transmission system of mobile device Download PDFInfo
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- CN105282310B CN105282310B CN201410357202.1A CN201410357202A CN105282310B CN 105282310 B CN105282310 B CN 105282310B CN 201410357202 A CN201410357202 A CN 201410357202A CN 105282310 B CN105282310 B CN 105282310B
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Abstract
The present invention relates to a kind of sound signal transmission method of mobile device and its message Transmission systems.The mobile device includes a message input unit, for receiving the sound outside the mobile device, and generates one first voice signal according to the sound；One message processing circuit is coupled to the message input unit, is used for carrying out signal processing to first voice signal, to generate one first audio signal；And a wireless communication module, it is coupled to the message processing circuit, is used for, with a wireless blue tooth (Bluetooth) agreement or a Wireless Fidelity certification (Wi Fi) agreement, transmitting first audio signal in real time to multiple external mobile devices.
Description
Technical field
The present invention relates to a kind of sound signal transmission method of mobile device and its message Transmission systems, more particularly to one kind
Can wirelessly broadcasting sound signal to multiple mobile devices method and its message Transmission system.
Background technology
With the fast development of the communication technology, smartphone has become the part during many life are lived.Due to intelligence
The portability of type mobile phone and various applications are constantly weeded out the old and bring forth the new, and people can have been carried out each by smartphone now
Kind different function, such as E-mail communication, web browsing, e-commerce etc..However, although smartphone incorporate it is a variety of
Using and function still often be limited to one-to-one talk for most basic call function.
On the other hand, large conference room or lecture hall install public address equipment mostly, these public address equipments include microphone and
Loudspeaker provide the function of multiple spot radio reception and sound broadcasting respectively.However, public address equipment is usually fixed, and must be built-in
Transmission line carries out the transmission of voice signal, can only be confined to the same interior space when in use, therefore use upper elasticity
And convenience is relatively low.In view of this, it is really necessary to propose a kind of message Transmission system, in combination with the radio reception work(of multiple mobile devices
Energy, sound amplification function and call function, to realize multiple spot and the transmission of real-time voice signal.
Invention content
Therefore, it is a primary object of the present invention to provide one kind technology can transmit audio signal in real time by radio communication
To the method and its message Transmission system of multiple mobile devices.
The present invention discloses a kind of mobile device, including a message input unit, for receiving one outside the mobile device
Sound, and one first voice signal is generated according to the sound；One message processing circuit is coupled to the message input unit, is used for
Signal processing is carried out to first voice signal, to generate one first audio signal；And a wireless communication module, it is coupled to this
Message processing circuit is used for a wireless blue tooth (Bluetooth) agreement or Wireless Fidelity certification (Wi-Fi) agreement, real
When transmit first audio signal to multiple external mobile devices.
The present invention also discloses a kind of method of transmission voice signal, is used for a mobile device, has a radio communication mold
Block, this method include the sound received outside the mobile device, and generate one first voice signal according to the sound；To this
One voice signal carries out signal processing, to generate one first audio signal；And it is wireless blue with one by the wireless communication module
Tooth agreement or a Wireless Fidelity authentication protocol transmit first audio signal to multiple external mobile devices in real time.
The present invention also discloses a kind of non-instantaneous computer readable medium, has a program code, can perform and include in one
In the mobile device of one wireless communication module, which includes the sound received outside the mobile device, and according to this
Sound generates the program code of one first voice signal；Signal processing is carried out to first voice signal, to generate one first sound
The program code of frequency signal；And by the wireless communication module with a wireless blue tooth protocol or a Wireless Fidelity authentication protocol
To transmit first audio signal in real time to the program code of multiple external mobile devices.
The present invention also discloses a kind of message Transmission system, including a first movement device and multiple second mobile devices.It should
First movement device includes a message input unit, for receiving the sound outside the first movement device, and according to the sound
Sound generates one first voice signal；One first message processing circuit is coupled to the message input unit, is used for first sound
Signal carries out signal processing, to generate one first audio signal；And one first wireless communication module, it is coupled to first message
Processing circuit is used for, with a wireless blue tooth protocol or a Wireless Fidelity authentication protocol, transmitting first audio signal.It is multiple
Every 1 second mobile device includes one second wireless communication module in second mobile device, is used for the wireless blue tooth protocol or is somebody's turn to do
Wireless Fidelity authentication protocol receives first audio signal；One second message processing circuit is used for first audio signal
Signal processing is carried out, to generate one second audio signal；And one first message broadcast unit.The first message broadcast unit packet
Containing at least one first amplifier, for amplifying second audio signal；And at least one first loud speaker, be coupled to this at least one
First amplifier, for playing second audio signal that at least one first amplifier is amplified.
Description of the drawings
Fig. 1 shows the schematic diagram of one mobile device of the embodiment of the present invention.
Fig. 2 shows the schematic diagrames that mobile device is in speakerphone mode.
Fig. 3 shows that mobile device is in the schematic diagram of message sending mode.
Fig. 4 shows that mobile device is in the schematic diagram of message reception pattern.
Fig. 5 shows the schematic diagram of one message Transmission system of the embodiment of the present invention.
Accompanying drawings symbol description
10 mobile devices
102 message input units
103 message processing circuits
104 message coders
106 processors
108 wireless communication modules
110 message broadcast units
120A~120C external mobile devices
130,140 switch unit
AMP1, AMP2 amplifier
SP1, SP2 loud speaker
CTRL1, CTRL2 control signal
N1~N6 contacts
V0 voice signals
V1, V2 audio signal
D1 digital audio datas
R2 wireless signals
The paths P1~P3
50 message Transmission systems
502,504_1~504_N mobile devices
Specific implementation mode
Referring to FIG. 1, Fig. 1 is the schematic diagram of one mobile device 10 of the embodiment of the present invention.As shown in Figure 1, mobile device 10
Including a message input unit 102, a message processing circuit 103, a wireless communication module 108 and a message broadcast unit 110,
As for other possible constituent element or module, such as display, camera, keyboard, storage facilities, visible system demand and increase
It adds deduct few, therefore under the explanation for not influencing the present embodiment, do not show slightly.Message input unit 102 can be any kind of receipts
Mixer, such as microphone can be used to receive an outside environmental sounds, and generate sound letter according to the outside environmental sounds
Number V0, with output to message processing circuit 103.Message processing circuit 103 includes a message coder 104 and a processor
106.Message coder 104 is coupled to message input unit 102, can be used to carry out signal processing to voice signal V0, and will
Voice signal V0 is converted to digital audio data D1, with output to processor 106.Above-mentioned signal processing may include any to sound
The processing routine that signal carries out, such as amplification, filtering, noise filtering, Analog-digital Converter, message coding and decoding.Processor
106 are coupled to message coder 104, can be used to carry out Digital Signal Processing to digital audio data D1, to generate an audio
Signal V1.Processor 106 can be for mobile device 10 a central processing unit (Central Processing Unit,
CPU), microprocessor (Microprocessor) or other types of processor.Above-mentioned Digital Signal Processing may include any right
The processing routine that digital signal carries out, such as filter, detect mistake.The audio signal V1 that processor 106 generates can transmit channel radio
Believe module 108, then technology is sent by radio communication.Wireless communication module 108 is coupled to processor 106, can pass through nothing
It is mobile to outside that line bluetooth (Bluetooth) agreement or Wireless Fidelity certification (Wi-Fi) agreement transmit audio signal V1 in real time
Device 120A~120C.Wireless communication module 108 can be sent or be received data by any wireless communication technique, may include but
It is not limited to various types of wireless communication devices such as bluetooth or Wireless Fidelity certification (Wi-Fi).Message broadcast unit 110 can be used
Carry out exports audio signal V1, to play out, message broadcast unit 110 include amplifier AMP1, AMP2 and loud speaker SP1,
SP2.Amplifier AMP1 and AMP2 can be used to amplify audio signal V1.Loud speaker SP1 and SP2 can be used to playing audio signal V1,
It can be any kind of public address system, such as loudspeaker, loudspeaker or earphone.In general, message broadcast unit 110 may include
Any amount of amplifier and loud speaker, depending on viewing system demand, and it is without being limited thereto.
It is worth noting that, message processing circuit 103 may include a switch unit 130, with according to a control signal CTRL1
The way of output of switched audio signal V1.As 103 exports audio signal V1 of message processing circuit, mobile device 10 includes an expansion
Sound pattern and a message sending mode.User can input control signal CTRL1 control switch unit 130 so that mobile dress
10 are set to switch between speakerphone mode and message sending mode.Under speakerphone mode, switch unit 130 can be by audio signal
V1 is sent to message broadcast unit 110, and under message sending mode, audio signal V1 is then sent to nothing by switch unit 130
Line communication module 108.In addition, mobile device 10 has a message reception pattern simultaneously, wireless communication module 108 is wireless at this time
The receiving terminal of signal can receive the wireless signal R2 transmitted by any one in external mobile devices 120A~120C.Message processing
Circuit 103 carries out signal processing (such as demodulation, noise filtering) to the wireless signal R2 received again, to generate audio signal
V2.The playing audio signal V2 again of message broadcast unit 110.Wherein, amplifier AMP1 and AMP2 can be used to amplify audio signal V2,
Loud speaker SP1 and SP2 are then used for playing audio signal V2.In the case, mobile device 10 also includes a switch unit 140,
With according to the output mode of a control signal CTRL2 switching message broadcast unit 110.Under speakerphone mode, message broadcast unit
110 amplifications and exports audio signal V1, to play out.Under message reception pattern, message broadcast unit 110 then amplifies and defeated
Go out audio signal V2, to play out.
Referring to FIG. 2, Fig. 2 is the schematic diagram that mobile device 10 is in speakerphone mode.If Fig. 2 shows, under speakerphone mode, letter
Number along path P 1 carry out.User can speak against message input unit 102, to generate voice signal V0.Then, at message
After circuit 103 is managed to voice signal V0 progress signal processing (such as amplify, filter), exports audio signal V1 to message is played
Unit 110.The exports audio signal V1 again of message broadcast unit 110, to play out.In the case, mobile device 10 has
The function of loudspeaker can amplify the sound of user and be sent by loud speaker SP1 and SP2.It is worth noting that, path P 1 is only
For a wherein embodiment for the various transmission modes of audio signal V1.
Referring to FIG. 3, Fig. 3 is the schematic diagram that mobile device 10 is in message sending mode.As shown in figure 3, being sent out in message
It send under pattern, signal is carried out along path P 2.User can speak against message input unit 102, to generate voice signal V0.
Then, message coder 104 carries out signal processing (such as amplify, filter) to voice signal V0, and voice signal V0 is turned
It is changed to after digital audio data D1, output to processor 106.Processor 106 carries out digital signal to digital audio data D1
Processing (such as filtering, modulation), to generate audio signal V1, and is sent to wireless communication module 108 by audio signal V1.It connects
It, wireless communication module 108 transmits audio signal V1 to outside by wireless blue tooth protocol or Wireless Fidelity authentication protocol again
Mobile device 120A~120C.In the case, in the occasion of speech, mobile device 10 can be set as message hair by speaker
Send pattern so that the sound of speaker can be broadcasted to external mobile devices 120A~120C, and external mobile dress can be used in audience
120A~120C is set to listen to speech content.
Referring to FIG. 4, Fig. 4 is the schematic diagram that mobile device 10 is in message reception pattern.As shown in figure 4, being connect in message
Under receipts pattern, signal is carried out along path P 3.Wireless communication module 108 can receive any in external mobile devices 120A~120C
Wireless signal R2 transmitted by person, and wireless signal R2 is sent to message processing circuit 103.Message processing circuit 103 is right again
The wireless signal R2 received carries out signal processing (such as demodulation, noise filtering), to generate audio signal V2, and audio is believed
Number V2 is sent to message broadcast unit 110.Then, message broadcast unit 110 can playing audio signal V2.In the case,
Mobile device 10 can be set as message reception pattern by the audience of speech so that the sound of speaker can module by radio communication
108 receive, then are played out by message broadcast unit 110.It is worth noting that, in this embodiment, it can be in processor
106 are output on the path of message broadcast unit 110 and configure a digital analog converter (Digital to Analog
Converter, DAC), wireless signal R2 is converted into audio signal V2, then be amplified by amplifier AMP1 and AMP2 and
Subsequent processing.
Therefore, under speakerphone mode, control signal CTRL1 must control the contact N1 in switch unit 130 and be connected to contact
N2, and control the contact N4 that signal CTRL2 must be controlled in switch unit 140 and be connected to contact N5 so that audio signal V1 can lead to
Path P1 transmission (as shown in Figure 2) is crossed, to realize sound amplification function.Under message sending mode, control signal CTRL1, which must be controlled, to be cut
The contact N1 changed in unit 130 is connected to contact N3 so that audio signal V1 can passage path P2 transmission (as shown in Figure 3), into
And realize the sending function of broadcast.Under message reception pattern, control signal CTRL2 must control the contact in switch unit 140
N4 is connected to contact N6 so that audio signal V2 obtained by wireless signal R2 is converted can passage path P3 transmission (such as Fig. 4 institutes
Show), and then realize the function of radio receiver of broadcast.
Referring to FIG. 5, Fig. 5 is the schematic diagram of one message Transmission system 50 of the embodiment of the present invention.As shown in figure 5, message passes
Defeated system 50 includes mobile device 502 and 504_1~504_N.It can be seen from the above, transmission of sound signals side through the invention
Formula, any mobile device all may be set to speakerphone mode, message sending mode or message reception pattern.Therefore, in the field of speech
It closes, mobile device 502 can be set as to message sending mode, and mobile device 504_1~504_N is set as message and receives mould
Mobile device 502 can be used to deliver a speech for formula, speaker, and mobile device 504_1~504_N can be used to come in real time for audience
It listens to.In addition to this, when the audience using mobile device 504_x is to be asked a question, also mobile device 504_x can be switched to message
Sending mode, and mobile device 502 is switched into message reception pattern.Voice signal can be sent to by mobile device 504_x
Other mobile devices in mobile device 502 and mobile device 504_1~504_N.On the other hand, mobile device of the invention also may be used
It realizes a conference system, all mobile devices can be preset as message reception pattern at this time, when user is to be made a speech, then by phase
Corresponding mobile device switches to message sending mode.Therefore, user can switch mobile device according to self-demand
To required operation mode.In one embodiment, also each shifting in message Transmission system can be controlled by a central control system
(such as the only open mobile device of same time uses message sending mode to the operation mode of dynamic device, to avoid multiple uses
The speech of person interferes with each other), and it is without being limited thereto.
It is worth noting that, be to provide one kind can be by voice signal wirelessly for one of the important spiritual of the present invention
It broadcasts to the method and system of multiple mobile devices, and then realizes the function of meeting and speech.Those skilled in the art work as can evidence
To be modified or be changed, and it is without being limited thereto.For example, above-mentioned wireless communication module 108 is for skill by radio communication
Art sends or receives data, may include, but are not limited to various types of wireless communication dresses such as bluetooth or Wireless Fidelity certification
It sets.In addition, above-mentioned switch unit 130 is implemented in message processing circuit 103；However, in other embodiments, switch unit
130 can also realize in other devices or unit, or be implemented separately in mobile device 10, and without being limited thereto.In addition, above-mentioned switching
Unit 140 is implemented separately in mobile device 10；However, in other embodiments, switch unit 140 can also be realized in other dresses
It sets or unit, and it is without being limited thereto.Switch unit 130 and 140 it can all be implemented by circuit, detailed embodiment should be ability
Known to field technique personnel, repeated no more in this.
It may be noted that in disclosure recited above, a non-instantaneous computer readable medium can be stored for executing or connecting one
It includes that one can perform program generation in arithmetic unit that the program of instruction execution system, device or equipment, wherein an example, which are a kind of,
The non-instantaneous computer readable medium of code, such as the mobile device 10 in Fig. 1.According to this for example, if mobile device is in message hair
When sending pattern, which contains the sound received outside mobile device 10, and generates a voice signal V0 according to the sound
Program code, signal processing is carried out to voice signal V0, to generate the program code of an audio signal V1 and by wireless
Communication module 108 transmits audio signal V1 in real time to outside shifting with a wireless blue tooth protocol or a Wireless Fidelity authentication protocol
The program code of dynamic device 120A~120C.If mobile device is in speakerphone mode, which includes to be put by amplifier
Big and exports audio signal V1 and the program code that the audio signal V1 amplified is played by loud speaker.It is other to be relevant to different moulds
The program code to can perform in arithmetic unit all can be compiled in the variation of switching and the various above methods between formula.
In disclosed content, computer readable medium may include any entity medium such as magnetic media, light
Learn medium or semiconductor media.More specific example includes but is not limited to tape (Magnetic Tape), floppy disc
(Magnetic Floppy Diskette), magnetic hard-disk (Magnetic Hard Drive), storage card (Memory Card),
Solid state disk (Solid-State Drive), universal serial bus flash memory (USB Flash Drive), CD (Optical
Disc).Computer readable medium also can be a random access memory (RAM), and it includes static RAMs
(Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM) or magnetic RAM
(Magnetic RAM, MRAM).In addition to this, computer readable medium can may be programmed read-only for a read-only memory (ROM), one
Memory (Programmable ROM, PROM), an Erarable Programmable Read only Memory (Erasable PROM, EPROM),
One erasable writes programmable read only memory (Electrically EPROM, EEPROM) or other memory devices.
In the prior art, the public address equipment of large conference room or lecture hall is usually fixed, and must built-in biography
Defeated line carries out the transmission of voice signal, when in use can only be confined to the same interior space, thus using upper elasticity and
Convenience is relatively low.In comparison, the present invention provide it is a kind of can by radio communication technology transmit in real time audio signal method and
Message Transmission system, controllable mobile device switch between speakerphone mode, message sending mode and message reception pattern.
Its corresponding mobile device can be switched to message sending mode in speaker or spokesman, and its corresponding shifting can be switched in audience
Device is moved to message reception pattern.In this way, it can be achieved that speech and conferencing function, while being promoted using upper elasticity
And convenience.
The foregoing is merely presently preferred embodiments of the present invention, the equivalence changes that all claims under this invention are done with repair
Decorations should all belong to the covering scope of the present invention.
Claims (15)
1. a kind of mobile device, including：
One message input unit for receiving the sound outside the mobile device, and generates one first sound according to the sound
Signal；
One message processing circuit is coupled to the message input unit, is used for carrying out signal processing to first voice signal, with production
Raw one first audio signal, the message processing circuit include one first switch unit, are used for according to a first control signal, switching
The way of output of first audio signal；And
One wireless communication module is coupled to the message processing circuit, for being recognized with a wireless blue tooth protocol or a Wireless Fidelity
Agreement is demonstrate,proved, transmits first audio signal in real time to multiple external mobile devices；
Wherein, when the first control signal indicates a speakerphone mode, which transmits first audio signal
To a message broadcast unit, when the first control signal indicates a message sending mode, first switch unit by this first
Audio signal is sent to the wireless communication module.
2. mobile device according to claim 1, wherein the message processing circuit also include：
One message coder is coupled to the message input unit, is used for carrying out signal processing to first voice signal, and will
First voice signal is converted to one first digital audio data；And
One processor is coupled between the message coder and the wireless communication module, is used for the first digital audio number
According to Digital Signal Processing is carried out, to generate first audio signal.
3. mobile device according to claim 1, wherein the message broadcast unit include：
An at least amplifier, for amplifying first audio signal；And
An at least loud speaker is coupled to an at least amplifier, for playing first sound that an at least amplifier is amplified
Frequency signal.
4. mobile device according to claim 3, the wherein wireless communication module are also used for receiving multiple external mobile
A wireless signal in device transmitted by an external mobile devices, the message processing circuit carry out at signal the wireless signal
Reason, to generate one second audio signal, wherein an at least amplifier for amplify second audio signal and this at least one
Loud speaker is used for playing second audio signal that an at least amplifier is amplified.
5. mobile device according to claim 4, including：
One second switch unit is coupled between the message processing circuit and the message broadcast unit, is used for according to one second control
First audio signal or second audio signal are selectively sent to the message broadcast unit by signal processed；
Wherein, when the second control signal indicates the speakerphone mode, which transmits first audio signal
To the message broadcast unit, when the second control signal indicates a message reception pattern, second switch unit by this second
Audio signal is sent to the message broadcast unit.
6. mobile device according to claim 1, the wherein wireless communication module include a bluetooth module to support the nothing
Line Bluetooth protocol or a Wireless Fidelity authentication module are to support the Wireless Fidelity authentication protocol.
7. mobile device according to claim 1, wherein the message input unit include a Bluetooth input equipment.
8. a kind of method of transmission voice signal, is used for a mobile device, there is a wireless communication module and a message to play
Unit, this method include：
The sound outside the mobile device is received, and one first voice signal is generated according to the sound；
Signal processing is carried out to first voice signal, to generate one first audio signal；
By the wireless communication module with a wireless blue tooth protocol or a Wireless Fidelity authentication protocol come transmit in real time this first
Audio signal is to multiple external mobile devices；And
According to a first control signal, switch the way of output of first audio signal, wherein when the first control signal indicates
When one speakerphone mode, which is sent to the message broadcast unit, and when the first control signal indicates one
When message sending mode, which is sent to the wireless communication module.
9. according to the method described in claim 8, wherein the message broadcast unit has an amplifier and a loud speaker, this method
Also include：
Amplify first audio signal by the amplifier, and plays the first audio signal of the amplification by the loud speaker.
10. according to the method described in claim 9, also including：
The wireless communication in multiple external mobile devices transmitted by an external mobile devices is received by the wireless communication module
Number；
Signal processing is carried out to the wireless signal, to generate one second audio signal；And
Amplify second audio signal by the amplifier, and plays the second audio signal of the amplification by the loud speaker.
11. according to the method described in claim 10, also including：
According to a second control signal, first audio signal or second audio signal are selectively sent to the message and broadcast
Unit is put, wherein：
When the second control signal indicates the speakerphone mode, which is sent to the message broadcast unit；With
And
When the second control signal indicates a message reception pattern, which is sent to the message and plays list
Member.
12. a kind of non-instantaneous computer readable medium stores a program code, which can be included a wireless communication
Module and the mobile device of a message broadcast unit are executed to realize following steps：
The sound outside the mobile device is received, and one first voice signal is generated according to the sound；
Signal processing is carried out to first voice signal, to generate one first audio signal；
By the wireless communication module with a wireless blue tooth protocol or a Wireless Fidelity authentication protocol come transmit in real time this first
Audio signal is to multiple external mobile devices；And
According to a first control signal, switch the way of output of first audio signal, wherein when the first control signal indicates
When one speakerphone mode, which is sent to the message broadcast unit, and when the first control signal indicates one
When message sending mode, which is sent to the wireless communication module.
13. non-instantaneous computer readable medium according to claim 12, wherein the message broadcast unit have an amplification
Device and a loud speaker, and the program code can be executed by the mobile device also to realize following steps：
Amplify first audio signal by the amplifier and plays the first audio signal of the amplification by the loud speaker.
14. a kind of message Transmission system, including：
One first movement device includes：
One message input unit for receiving the sound outside the first movement device, and generates one first according to the sound
Voice signal；
One first message processing circuit is coupled to the message input unit, is used for carrying out signal processing to first voice signal,
To generate one first audio signal；And
One first wireless communication module is coupled to the first message processing circuit, is used for wireless with a wireless blue tooth protocol or one
Compatible authentication protocol transmits first audio signal；And
Multiple second mobile devices, wherein every 1 second mobile device includes：
One second wireless communication module, be used for the wireless blue tooth protocol or the Wireless Fidelity authentication protocol, receive this first
Audio signal；
One second message processing circuit is used for carrying out signal processing to first audio signal, with production
Raw one second audio signal；And
One first message broadcast unit includes：
At least one first amplifier, for amplifying second audio signal；And
At least one first loud speaker is coupled at least one first amplifier, and for playing this, at least one first amplifier is put
Big second audio signal；
Wherein, which includes also one second message broadcast unit, is coupled to the first message processing circuit, is used for
Receive first audio signal caused by the first message processing circuit；
Wherein, which includes：
One switch unit is used for, according to a control signal, switching the way of output of first audio signal；
Wherein, when control one speakerphone mode of signal designation, the switch unit by first audio signal be sent to this second
Message broadcast unit, when the one message sending mode of control signal designation, which transmits first audio signal
To first wireless communication module.
15. message Transmission system according to claim 14, wherein the second message broadcast unit include：
At least one second amplifier, for amplifying first audio signal；And
At least one second loud speaker is coupled at least one second amplifier, and for playing this, at least one second amplifier is put
Big first audio signal.
Priority Applications (1)
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| CN201410357202.1A CN105282310B (en) | 2014-07-25 | 2014-07-25 | The sound signal transmission method and its message Transmission system of mobile device |
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|---|---|---|---|
| CN201410357202.1A CN105282310B (en) | 2014-07-25 | 2014-07-25 | The sound signal transmission method and its message Transmission system of mobile device |
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