CN105337671B - The means of communication and system of terminal are sent and received based on sound wave - Google Patents
The means of communication and system of terminal are sent and received based on sound wave Download PDFInfo
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- CN105337671B CN105337671B CN201410403877.5A CN201410403877A CN105337671B CN 105337671 B CN105337671 B CN 105337671B CN 201410403877 A CN201410403877 A CN 201410403877A CN 105337671 B CN105337671 B CN 105337671B
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Abstract
The present invention provides a kind of means of communication and system that terminal is sent and received based on sound wave.The means of communication include: first terminal by the information of the first frequency of receivable sound wave, and modulation is loaded on to be issued on first group of sound wave at least two band frequencies；Second terminal demodulates first group of sound wave using preassigned second frequency；If not demodulating to obtain the information of the first model and first frequency, the modulates information of first frequency is loaded on and is issued on second group of sound wave by first terminal, and second group of sound wave has and different at least two band frequencies of first group of sound wave；If demodulation obtains, communicated between first terminal and second terminal by first frequency and second frequency.By the above-mentioned means, the compatibility of data transmission between communicating terminal is improved, to improve the success rate of communication data transfer the invention enables the Autonomous adaptation for being able to carry out frequency of sound wave between the communicating terminal based on sound wave.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to audio data transmission technique field, more particularly to a kind of base
The means of communication and system of terminal are sent and received in sound wave.
Background technique
In current life, data transmission technology of the applications of sound waves between terminal is compared to traditional near-field communication skill
Art has been widely used in commercial correspondance because it has the characteristics that high reliablity, high safety, data transmission bauds are fast, at low cost
Field.
In the prior art when carrying out the data transmission based on sound wave, have to send out between sender and the terminal of recipient
The sound wave (sound wave) with corresponding fixation and known frequency of sound wave is sent and received, communication mechanism could be established.However, solid
Fixed frequency of sound wave makes the terminal of sender the terminal of the recipient of the frequency of sound wave can not cannot be supported to carry out with others
Communication, i.e., can not carry out the Autonomous adaptation of frequency of sound wave, poor so as to cause the compatibility between communicating terminal, and data pass
Defeated success rate is lower.
Summary of the invention
In consideration of it, technical problem to be solved by the invention is to provide a kind of communications for sending and receiving terminal based on sound wave
Method and system, are able to carry out the Autonomous adaptation of frequency of sound wave between communicating terminal, improve the compatibility between communicating terminal with
And the success rate of data transmission.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of means of communication are provided, comprising:
First terminal loads on the information of the first frequency of receivable sound wave, modulation on first group of sound wave at least two band frequencies
It issues；Second terminal enrolls first group of sound wave that first terminal issues, and using preassigned second frequency to first group of sound
Wave is demodulated；If not demodulating to obtain the information of first frequency, for first terminal by the information of first frequency, modulation loads on the
It is issued on two groups of sound waves, second group of sound wave has and different at least two band frequencies of first group of sound wave；If demodulation obtains first
The information of frequency, then communicated between first terminal and second terminal by first frequency and second frequency.
It wherein, include: the while the modulates information of first frequency is loaded on and issued on first group of sound wave by first terminal
The modulates information of the first model of itself is loaded on and is issued on first group of sound wave by one terminal；If not demodulating to obtain first frequency
Information, if it includes: that second terminal does not solve that then the modulates information of first frequency is loaded on sending on second group of sound wave by first terminal
Tune obtains the information of the first model and first frequency, then first terminal loads the information of the first model and first frequency, modulation
It is issued on second group of sound wave.
Wherein, if second terminal demodulates to obtain the information of the first model and first frequency, the means of communication using second frequency
Further comprise: second terminal loads on the information of the second model of itself and second frequency, modulation with first frequency
It is issued on sound wave；First terminal enrolls the sound wave with first frequency that second terminal issues, and using first frequency to sound wave
It is demodulated, obtains the information of the second model and second frequency.
Wherein, first terminal is demodulated after obtaining the first model and the information of first frequency using second frequency, communication side
Method further comprises: the mapping relations between the first model of first terminal record, the second model and first frequency, second frequency.
Wherein, after second terminal demodulates to obtain the step of information of the first model and first frequency using second frequency,
The means of communication further comprise: the mapping between the first model of second terminal record, the second model and first frequency, second frequency
Relationship.
In order to solve the above technical problems, another technical solution used in the present invention is: providing logical between a kind of terminal
News system, including first terminal and second terminal, first terminal include the first modulation /demodulation module and the first loudspeaker, second terminal
Including second microphone and the second modulation /demodulation module, in which: the first modulation /demodulation module is used to first terminal can receive sound
The modulates information of the first frequency of wave loads on first group of sound wave at least two band frequencies；First loudspeaker are used for first
Group sound wave issues；Second microphone is used to enroll first group of sound wave that the first loudspeaker of first terminal issue；Second modulation /demodulation
Module is used to demodulate first group of sound wave that second microphone is enrolled using preassigned second frequency；
If the second modulation /demodulation module does not demodulate to obtain the information of first frequency, the first modulation /demodulation module is further used
It is issued on second group of sound wave in loading on the modulates information of first frequency, second group of sound wave has not identical as first group of sound wave
At least two band frequencies；If the second modulation /demodulation module demodulates to obtain the information of first frequency, first terminal and second terminal
Between communicated by first frequency and second frequency.
Wherein, the first modulation /demodulation module is also used to loading on the modulates information of first frequency on first group of sound wave
The modulates information of the first model of first terminal is loaded on first group of sound wave simultaneously, if the second modulation /demodulation module does not demodulate
The information of the first model and first frequency is obtained, then the first modulation /demodulation module is further used for the first model and first frequency
Information, modulation loads on and issues on second group of sound wave.
Wherein, second terminal further includes the second loudspeaker, demodulates to obtain the first model and first in the second modulation /demodulation module
When the information of frequency, the second modulation /demodulation module is further used for the information tune by the second model of second terminal and second frequency
System loads on the sound wave with first frequency, and the second loudspeaker are used to have the sound wave of first frequency to issue；First terminal is also
Including the first microphone, the first microphone is used to enroll the sound wave with first frequency that the second loudspeaker of second terminal issue,
First modulation /demodulation module is further used for demodulating sound wave using first frequency, obtains the second model and second frequency
Information.
Wherein, second terminal further includes the first matching module, the first modulation /demodulation module demodulate to obtain the second model and
After the information of second frequency, the first matching module for record the first model, the second model and first frequency, second frequency it
Between mapping relations.
Wherein, second terminal further includes the second matching module, the second modulation /demodulation module demodulate to obtain the first model and
After the information of first frequency, the second matching module for record the first model, the second model and first frequency, second frequency it
Between mapping relations.
The beneficial effect of the embodiment of the present invention is: being in contrast to the prior art, the embodiment of the present invention passes through as hair
The first terminal for the side of sending and as one or many acoustic communications with different frequency between the second terminal of recipient, directly
First group of sound wave that first terminal issues can be demodulated using preassigned second frequency, be somebody's turn to do to second terminal
The first terminal of first group of sound wave load can receive the information of the first frequency of sound wave, then using second frequency and first frequency as
The frequency of sound wave communicated between both sides is able to carry out the autonomous of frequency of sound wave between communicating terminal based on this embodiment of the present invention and fits
Match, improve the compatibility between communicating terminal, to improve the success rate that data are transmitted between communicating terminal.
Detailed description of the invention
Fig. 1 is the flow chart of the means of communication of first embodiment of the invention；
Fig. 2 is the flow chart of the means of communication of second embodiment of the invention；
Fig. 3 is the functional block diagram of the communication system of the preferred embodiment of the present invention.
Specific embodiment
To keep the purpose of the present invention, technical solution and technical effect clearer, with reference to the accompanying drawing to reality of the invention
Apply the detailed description of example work further.Obviously, the described embodiments are merely a part of the embodiments of the present invention, rather than complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work
Under all other embodiment obtained, all belong to the scope of protection of the present invention.
Fig. 1 is the flow chart of the first embodiment of the means of communication of the invention.Refering to Figure 1, the present embodiment is logical
Communication method is the following steps are included: step S11: the information of the first frequency of receivable sound wave, modulation are loaded on tool by first terminal
It is issued on first group of sound wave for having at least two band frequencies.
In the present embodiment, first terminal as sender or sends terminal, correspondingly, second terminal as recipient or
Receive terminal.First terminal mentioned by full text of the present invention and second terminal are not limited to intelligence by taking smart phone as an example certainly
Can mobile phone, can be any terminal that function is sent and received with sound wave, including laptop, portable communication appts,
PDA (Personal Digital Assistant, personal digital assistant or tablet computer) and audio entrance guard device, audio are known
Not with transaction payment terminal Key etc..Based on this, the means of communication of the invention be applicable to gate inhibition swipe the card, transaction payment, body face to face
Part identification certification etc..
It should be pointed out that before the information to first frequency is modulated, it is also necessary to carry out data encoding.It is modulated
The information of first frequency of sound wave is embodied in one group of coding modulation data, it is therefore necessary to count this group of coding modulation data
Mould is converted to obtain corresponding analog information, is then loaded on analog information and is successively issued on first group of sound wave, certainly may be used
First group of sound wave to be simultaneously emitted by.
The present embodiment preferably first group of sound wave has three sections of frequency of sound wave, and is non-second harmonic frequency.Certainly, other
In embodiment, those skilled in the art can also be arranged first group of sound wave have other quantity sections frequency, the present invention to this simultaneously
It is not limited.
After first group of sound wave is issued, first terminal opens the sound pick-up outfit of itself, such as microphone, prepares to receive second
The information that terminal is fed back in the form of sound wave.
Step S12: second terminal enrolls first group of sound wave that first terminal issues, and uses preassigned second frequency
First group of sound wave is demodulated.
Second terminal successively enrolls first group of sound that first terminal issues by itself sound pick-up outfit, such as microphone
Then wave carries out analog-to-digital conversion to the first group of sound wave received, then carries out solution conciliation to first group of sound wave after analog-to-digital conversion
Code.
Demodulation is the inverse process of modulation, is undistorted from first group of sound wave with three sections of different frequencies (high frequency)
Ground obtains the information of the first frequency of load, must selecting demodulated frequency when demodulation.
Step S13: judge whether second terminal demodulates to obtain the information of first frequency.
Wherein, if second terminal does not demodulate to obtain the information of first frequency, indicate that second terminal can not using second frequency
First group of sound wave is demodulated, i.e., second terminal can not be communicated with second frequency with first terminal, be thened follow the steps
S14.On the contrary, if second terminal demodulates to obtain the information of first frequency, indicate that second terminal can be to the using second frequency
One group of sound wave is demodulated, i.e., second terminal can be communicated with second frequency with first terminal, thens follow the steps S15.
Step S14: the modulates information of the first frequency of sound wave is loaded on and is issued on second group of sound wave by first terminal.
Wherein, second group of sound wave has and the different at least two sections of frequency of sound wave of first group of sound wave, and second group of sound
The number of segment for the frequency of sound wave that wave has can be identical with first group of sound wave, can not also be identical.Second group of sound of the present embodiment
Wave is upper with the different at least two sections of frequency of sound wave of first group of sound wave to having, that is to say, that if second terminal without
Method demodulates to obtain the information of the first frequency of sound wave by second frequency, then repeatedly step S11 first terminal by the first frequency of sound wave
Information load on sound wave and the sending of other band frequencies, until no longer executing step S14 after step S13, but execute step
Rapid S15.
Step S15: it is communicated between first terminal and second terminal by first frequency and second frequency.
Based on above-mentioned, it is known that the present embodiment by first terminal as sender and the second terminal as recipient it
Between one or many acoustic communications with different frequency, until second terminal can use preassigned second frequency pair
First group of sound wave that first terminal issues is demodulated, and the receivable sound wave of the first terminal of first group of sound wave load is obtained
The information of first frequency thus allows for then using second frequency and first frequency as the frequency of sound wave communicated between both sides
The Autonomous adaptation of frequency of sound wave between communicating terminal improves the compatibility between communicating terminal, and then improves between communicating terminal
The success rate of data transmission.
Fig. 2 is the flow chart of the second embodiment of the means of communication of the invention.It please refers to shown in Fig. 2, in first embodiment
On the basis of described, the means of communication of the present embodiment the following steps are included:
Step S21: first terminal loads the information of the first model of itself and the first frequency of receivable sound wave, modulation
It is issued on first group of sound wave at least two band frequencies.
Step S22: second terminal enrolls first group of sound wave that first terminal issues, and uses preassigned second frequency
First group of sound wave is demodulated.
The preferred first terminal of the present embodiment detects whether it was adapted to before this communication with other terminals, i.e., and
One terminal detect itself the first model whether with the models of other terminals, first terminal can receive sound wave frequency whether with its
Its frequency of sound wave has mapping relations.If having mapping relations, then it represents that carried out adaptation before first terminal, at this time preferred choosing
Take the frequency of sound wave of adaptation as frequency, demodulation frequency, i.e. second frequency demodulates first group of sound wave that first terminal issues.
Step S23: judge whether second terminal demodulates to obtain the information of the first model and first frequency.
If second terminal does not demodulate to obtain the information of the first model and first frequency, indicate that second terminal uses second frequency
First group of sound wave can not be demodulated, i.e., second terminal can not be communicated with second frequency with first terminal, then execute step
Rapid S24.On the contrary, indicating that second terminal uses second if second terminal demodulates to obtain the information of the first model and first frequency
Frequency can demodulate first group of sound wave, i.e., second terminal can be communicated with second frequency with first terminal, then held
Row step S25.
Step S24: first terminal loads on the modulates information of the first model and the first frequency of sound wave on second group of sound wave
It issues.
Step S25: by the information of the second model of itself and second frequency, modulation is loaded on the first frequency second terminal
It is issued on the sound wave of rate.
Step S26: it is communicated between first terminal and second terminal by first frequency and second frequency.
This step further records the mapping relations between the second model, the first model and second frequency, first frequency, with
Convenient for the adaptation of frequency of sound wave is directly carried out when the communication afterwards of first terminal and second terminal according to mapping relations.Based on this
Purpose, the preferred first terminal of the present embodiment and second terminal, which record, the mapping relations.
Fig. 3 is the functional block diagram of the preferred embodiment of communication system of the invention.It please refers to shown in Fig. 3, the present embodiment
Communication system includes first terminal 10 and second terminal 20, and first terminal 10 includes the first microphone 11, the first D/A switch mould
Block 12, the first modulation /demodulation module 13, the first loudspeaker 14 and the first matching module 15, second terminal 20 include second microphone
21, the second D A switch module 22, the second modulation /demodulation module 23, the second loudspeaker 24 and the second matching module 25.In this reality
It applies in example:
First D A switch module 12 is used to count the information of the first frequency of the receivable sound wave of first terminal 10
Mould conversion.First modulation /demodulation module 13 is used to loading on the modulates information of first frequency into first at least two band frequencies
On group sound wave.First loudspeaker 14 are used to issue first group of sound wave.Wherein,
First group of sound wave has three sections of different frequencies, and the first modulation /demodulation module 13 of first terminal 10 is used for first
The modulates information of frequency loads on first group of sound wave with three sections of different frequencies, the first loudspeaker 14 for will have three sections not
First group of sound wave of same frequency successively issues.
The second microphone 21 of second terminal 20 is used to enroll first group of sound that the first loudspeaker 14 of first terminal 10 issue
Wave.First group of sound wave that second D A switch module 22 is used to enroll second microphone 21 carries out analog-to-digital conversion.Second modulation
Demodulation module 23 is used for that the preassigned second frequency of use enrolls second microphone 21 and passes through the second D/A switch mould
First group of sound wave after 22 analog-to-digital conversion of block is demodulated.
If the second modulation /demodulation module 23 does not demodulate to obtain the information of first frequency, the first modulatedemodulate of first terminal 10
Mode transfer block 13 is further used for loading on the modulates information of first frequency to be issued on second group of sound wave, wherein second group of sound wave tool
Have and different at least two band frequencies of first group of sound wave.
If the demodulation of the second modulation /demodulation module 23 obtains the information of first frequency, first terminal 10 and second terminal 20 it
Between communicated by first frequency and second frequency.
Further, the first modulation /demodulation module 13 of first terminal 10 can also be used in the first model of first terminal 10
It is loaded on first group of sound wave with three sections of different frequencies with the modulates information of first frequency, the first loudspeaker 14 will be for that will have
First group of sound wave of three sections of different frequencies successively issues.
If the second modulation /demodulation module 23 does not demodulate to obtain the information of the first model and first frequency, first terminal 10
First modulation /demodulation module 13 is further used for loading on the modulates information of first frequency to be issued on second group of sound wave.
If the demodulation of the second modulation /demodulation module 23 obtains the information of the first model and first frequency, first terminal 10 and the
It is communicated between two terminals 20 by first frequency and second frequency.
Then, the second matching module 25 is between the first model of record, the second model and first frequency, second frequency
Mapping relations, in order to directly carry out sound wave frequency when the communication afterwards of first terminal 10 and second terminal 20 according to mapping relations
The adaptation of rate.Further,
Second modulation /demodulation module 23 is used to load the modulates information of the second model of second terminal 20 and second frequency
In on the sound wave with first frequency.Second loudspeaker 24 are used to have the sound wave of first frequency to issue.
What the second loudspeaker 24 that the first microphone 11 of first terminal 10 is used to enroll second terminal 20 issued has first
The sound wave of frequency.First modulation /demodulation module 13 is further used for demodulating sound wave using first frequency, obtains second type
Number and second frequency information.
First matching module 15 is used to record the mapping between the first model, the second model and first frequency, second frequency
Relationship, in order to directly carry out frequency of sound wave according to mapping relations when the communication afterwards of first terminal 10 and second terminal 20
Adaptation.
The modules of the communication system of the present embodiment are corresponding to execute step described in above-mentioned means of communication embodiment, because
This beneficial effect having the same.Moreover, it will be understood that the embodiment of communication system described above is only to illustrate
Property, the division of described module, only a kind of logical function partition, there may be another division manner in actual implementation,
Such as first terminal 10 and second terminal 20 can respectively correspond the first and second judgment modules of setting, to judge the second modulation
Whether demodulation module 23 demodulates to obtain the information of the first model and first frequency, or the first and second processing modules of setting, uses
It can be combined or can be integrated into another system with controlling the modules corresponding operation of progress or multiple modules
In, or some features can be ignored or not executed.In addition, the mutual coupling or communication connection of module can be by one
A little interfaces are also possible to electrical or other forms.
Component part of the above-mentioned each functional module as communication system, may or may not be physical frame, both
It can be located in one place, may be distributed over multiple network units, both can take the form of hardware realization, can also adopt
It is realized with the form of software function frame.Some or all of the modules therein can be selected to realize this hair according to the actual needs
The purpose of bright scheme.
In conclusion the embodiment of the present invention by first terminal as sender and the second terminal as recipient it
Between one or many acoustic communications with different frequency, until second terminal can use preassigned second frequency pair
First group of sound wave that first terminal issues is demodulated, and the first terminal for obtaining first group of sound wave load can receive the of sound wave
The information of one frequency thus allows for leading to then using second frequency and first frequency as the frequency of sound wave communicated between both sides
The Autonomous adaptation of frequency of sound wave between terminal is interrogated, the compatibility between communicating terminal is improved, and then improves number between communicating terminal
According to the success rate of transmission.
Illustrate again, the above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all
It is special using technology between equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, such as each embodiment
Sign be combined with each other, and being applied directly or indirectly in other relevant technical fields, similarly includes protecting in patent of the invention
It protects in range.
Claims (10)
1. a kind of means of communication, which is characterized in that the means of communication include:
The information of the first frequency of receivable sound wave, modulation are loaded on first group of sound at least two band frequencies by first terminal
It is issued on wave；
Second terminal enrolls first group of sound wave that the first terminal issues, and using preassigned second frequency to institute
It states first group of sound wave to be demodulated, judges whether the second terminal demodulates to obtain the information of the first frequency；
If not demodulating to obtain the information of the first frequency, the first terminal loads the modulates information of the first frequency
It is issued on second group of sound wave, and returns and judge whether the second terminal demodulates to obtain the information of the first frequency, it is described
Second group of sound wave has and different at least two band frequencies of first group of sound wave；
If demodulation obtains the information of the first frequency, pass through described first between the first terminal and the second terminal
Frequency and the second frequency are communicated.
2. the means of communication according to claim 1, which is characterized in that the first terminal is by the information of the first frequency
Modulation loads on while sending on first group of sound wave
The modulates information of the first model of itself is loaded on and is issued on first group of sound wave by the first terminal；
Do not demodulate to obtain the information of the first frequency if described, the first terminal is by the modulates information of the first frequency
It loads on to issue on second group of sound wave and includes:
If the second terminal does not demodulate to obtain the information of first model and the first frequency, the first terminal will
The information of first model and the first frequency, modulation loads on to be issued on second group of sound wave.
3. the means of communication according to claim 2, which is characterized in that if the second terminal uses the second frequency solution
Tune obtains the information of first model and the first frequency, and the means of communication further comprise:
By the information of the second model of itself and the second frequency, modulation is loaded on first frequency second terminal
It is issued on the sound wave of rate；
The first terminal enrolls the sound wave with the first frequency that the second terminal issues, and use described the
One frequency demodulates the sound wave, obtains the information of second model and the second frequency.
4. the means of communication according to claim 3, which is characterized in that the first terminal is using the first frequency to institute
After stating the step of sound wave is demodulated to obtain the information of second model and the second frequency, the means of communication are into one
Step includes:
The first terminal records between first model, second model and the first frequency, the second frequency
Mapping relations.
5. the means of communication according to claim 4, which is characterized in that the second terminal is demodulated using the second frequency
After obtaining first model and the information of the first frequency, the means of communication further comprise:
The second terminal records between first model, second model and the first frequency, the second frequency
Mapping relations.
6. a kind of communication system, which is characterized in that the communication system includes first terminal and second terminal, the first terminal
Including the first modulation /demodulation module and the first loudspeaker, the second terminal includes second microphone and the second modulation /demodulation module,
Wherein:
The modulates information that the first modulation /demodulation module is used to can receive the first terminal first frequency of sound wave loads
In on first group of sound wave at least two band frequencies；First loudspeaker are used to issue first group of sound wave；
The second microphone is used to enroll first group of sound wave that first loudspeaker of the first terminal issue；It is described
Second modulation /demodulation module is used for the first group of sound enrolled using preassigned second frequency to the second microphone
Wave is demodulated, and judges whether the second modulation /demodulation module demodulates to obtain the information of the first frequency；
If the second modulation /demodulation module does not demodulate to obtain the information of the first frequency, the first modulation /demodulation module
It is further used for loading on the modulates information of the first frequency and is issued on second group of sound wave, and returns and judge that described second adjusts
Whether demodulation module processed demodulates to obtain the information of the first frequency, and second group of sound wave has with first group of sound wave not
Identical at least two band frequencies；
If the second modulation /demodulation module demodulates to obtain the information of the first model and the first frequency, the first terminal
It is communicated between the second terminal by the first frequency and the second frequency.
7. communication system according to claim 6, which is characterized in that the first modulation /demodulation module is also used to by institute
It states the letter of the first model of the first terminal while modulates information of first frequency loads on first group of sound wave
Breath modulation loads on first group of sound wave, if the second modulation /demodulation module does not demodulate to obtain first model and institute
The information of first frequency is stated, then the first modulation /demodulation module is further used for the letter of first model and the first frequency
Breath, modulation loads on to be issued on second group of sound wave.
8. communication system according to claim 7, which is characterized in that the second terminal further includes the second loudspeaker, in institute
When stating the second modulation /demodulation module and demodulating to obtain the information of first model and the first frequency, second modulation /demodulation
Module is further used for loading on the modulates information of the second model of the second terminal and the second frequency with described
On the sound wave of first frequency, second loudspeaker are used to have the sound wave of the first frequency to issue；
The first terminal further includes the first microphone, and first microphone is for enrolling described the second of the second terminal
The sound wave with the first frequency that loudspeaker issue, the first modulation /demodulation module are further used for using described the
One frequency demodulates the sound wave, obtains the information of second model and the second frequency.
9. communication system according to claim 8, which is characterized in that the second terminal further includes the first matching module,
After the first modulation /demodulation module demodulates to obtain the information of second model and the second frequency, described first
It is used to record the mapping between first model, second model and the first frequency, the second frequency with module
Relationship.
10. communication system according to claim 9, which is characterized in that the second terminal further includes the second matching module,
After the second modulation /demodulation module demodulates to obtain the information of first model and the first frequency, described second
It is used to record the mapping between first model, second model and the first frequency, the second frequency with module
Relationship.
Priority Applications (2)
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| CN201410403877.5A CN105337671B (en) | 2014-08-15 | 2014-08-15 | The means of communication and system of terminal are sent and received based on sound wave |
| PCT/CN2015/086976 WO2016023516A1 (en) | 2014-08-15 | 2015-08-14 | Sound wave sending method, receiving method, sending device and receiving device and system |
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| CN201410403877.5A CN105337671B (en) | 2014-08-15 | 2014-08-15 | The means of communication and system of terminal are sent and received based on sound wave |
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| CN107888296A (en) * | 2016-09-30 | 2018-04-06 | 通用电气公司 | Utilize the communication system and method for pipeline configuration |
| CN108377169A (en) | 2018-02-08 | 2018-08-07 | 京东方科技集团股份有限公司 | A kind of vehicle information directive sending method and device |
| CN111970558A (en) * | 2020-10-19 | 2020-11-20 | 深圳乐播科技有限公司 | Screen projection method, device, equipment and storage medium based on sound wave communication |
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| RU2398356C2 (en) * | 2008-10-31 | 2010-08-27 | Cамсунг Электроникс Ко., Лтд | Method of setting up wireless communication line and system for setting up wireless communication |
| US8854985B2 (en) * | 2010-12-31 | 2014-10-07 | Yossef TSFATY | System and method for using ultrasonic communication |
| CN103825661B (en) * | 2014-03-13 | 2016-03-02 | 魅族科技（中国）有限公司 | A kind of method that annexation is set up and terminal |
| CN103856270A (en) * | 2014-03-13 | 2014-06-11 | 珠海市魅族科技有限公司 | Data receiving method and terminal |
| CN103957220A (en) * | 2014-05-19 | 2014-07-30 | 刘飞 | Data transmission method and system based on frequency conversion sound waves |
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