CN109120309A - File acquisition method and device, file transmitting method and device, storage medium - Google Patents
File acquisition method and device, file transmitting method and device, storage medium Download PDFInfo
- Publication number
- CN109120309A CN109120309A CN201710487483.6A CN201710487483A CN109120309A CN 109120309 A CN109120309 A CN 109120309A CN 201710487483 A CN201710487483 A CN 201710487483A CN 109120309 A CN109120309 A CN 109120309A
- Authority
- CN
- China
- Prior art keywords
- analog signal
- terminal
- original document
- file
- carried out
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 75
- 238000003860 storage Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 64
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 32
- 230000009467 reduction Effects 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims description 52
- 230000008569 process Effects 0.000 claims description 28
- 238000005070 sampling Methods 0.000 claims description 18
- 230000003321 amplification Effects 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 17
- 238000007493 shaping process Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 14
- 108010001267 Protein Subunits Proteins 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006870 function Effects 0.000 description 33
- 238000010586 diagram Methods 0.000 description 22
- 230000005672 electromagnetic field Effects 0.000 description 20
- 230000006698 induction Effects 0.000 description 11
- 230000015654 memory Effects 0.000 description 11
- 230000001939 inductive effect Effects 0.000 description 10
- 238000013461 design Methods 0.000 description 9
- 238000005457 optimization Methods 0.000 description 9
- 238000004088 simulation Methods 0.000 description 9
- 239000000178 monomer Substances 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Telephone Function (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The present invention provides a kind of file acquisition method and devices, file transmitting method and device, storage medium, wherein, this document acquisition methods include: that the analog signal of second terminal transmission is obtained in the way of electromagnetic induction by the loudspeaker electromagnetic coil of first terminal；By carrying out reduction treatment to the analog signal, original document corresponding with the analog signal is obtained.Through the invention, it is cumbersome to efficiently solve the problems, such as that file present in the relevant technologies transmits, so that the complexity of simplified-file transmission, improves the effect of user experience.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of file acquisition method and device, file transmitting method and
Device, storage medium.
Background technique
As the every field of people's life is goed deep into the application of intelligent terminal, shared file also increasingly frequency between terminal
Numerous, the transmission of especially small documents is very frequent, especially accounts for the overwhelming majority, the near field of present mainstream with audio and picture file
Transmission technology is mainly based on bluetooth (BT) and local area network (WIFI) technology.
The transmission feature of BT is point-to-point transmission, and a BT, which initiates source, can only connect unique target device, and need secret
Key authentication, and transmission requires to be confirmed every time；WIFI transmission utilizes local area network technology, and both can complete Cell Broadcast CB can also
With point-to-point to biography, and using local area network technology carry out near-field communication when, need to carry out authentication.Two kinds of above-mentioned technologies exist
It when connection or is that code key is needed to carry out identity validation or be that must complete the foundation of point-to-point link, also, it is above two
Technical solution all there are certain requirements power, and the establishment step of the two transmission link is all relatively complicated, especially to music and
It is applied for the information not high to security requirement such as pictorial information cumbersome.
Cumbersome problem is transmitted for file present in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of file acquisition method and device, file transmitting method and device, storage medium,
At least to solve the problems, such as that it is cumbersome that file present in the relevant technologies transmits.
According to one embodiment of present invention, a kind of file acquisition method is provided, comprising: utilize the loudspeaking of first terminal
Device electromagnetic coil obtains the analog signal of second terminal transmission by way of electromagnetic induction；By being carried out to the analog signal
Reduction treatment obtains original document corresponding with the analog signal.
Optionally, by carrying out reduction treatment to the analog signal, the original corresponding with the analog signal is obtained
Beginning file includes: to carry out demodulation process to the analog signal；It is counted to the analog signal after demodulation process has been carried out
Word sampling processing；The analog signal is decoded processing to having carried out digitized sampling treated, obtains described original
File.
Optionally, before carrying out the reduction treatment to the analog signal, the method also includes: to the simulation
Signal at least one carries out the following processing: amplification, shaping, filtering.
According to one embodiment of present invention, provide a kind of file transmitting method, comprising: determine it is to be passed give first eventually
The analog signal at end；The analog signal is transmitted in the way of electromagnetic induction by the loudspeaker electromagnetic coil of second terminal
To the first terminal.
Optionally it is determined that the analog signal to be passed for giving first terminal comprises determining that and to be passed gives the first terminal
The type of original document；The original document is converted into the analog signal according to the type of the original document.
Optionally, according to the type of the original document by the original document be converted into the analog signal include:
When the type for determining the original document is non-audio file type, message sink coding is carried out to the original document, by the original
The coded format of beginning file is changed to the coded format of audio class file；The original document conversion of message sink coding will be carried out
At the analog signal.
Optionally, before sending the analog signal to the first terminal, the method also includes: to the mould
Quasi- signal at least one carries out the following processing: amplification, shaping, filtering.
According to one embodiment of present invention, a kind of file acquisition device is provided, comprising: first obtains module, is used for
The analog signal of second terminal transmission is obtained in the way of electromagnetic induction by the loudspeaker electromagnetic coil of first terminal；Second
Module is obtained, for obtaining original document corresponding with the analog signal by carrying out reduction treatment to the analog signal.
Optionally, the first acquisition module includes: first processing units, is mediated for carrying out solution to the analog signal
Reason；The second processing unit, for carrying out digitized sampling processing to having carried out the analog signal after demodulation process；It obtains single
Member obtains the original document for the analog signal to be decoded processing to having carried out digitized sampling treated.
According to one embodiment of present invention, a kind of document conveying apparatus is provided, comprising: determining module, for determining
The analog signal to be passed for giving first terminal；Delivery module, for passing through electromagnetism using the loudspeaker electromagnetic coil of second terminal
The mode of induction sends the analog signal to the first terminal.
Optionally, the determining module comprises determining that unit, for determining the original text to be passed for giving the first terminal
The type of part；Converting unit, for the original document to be converted into the analog signal according to the type of the original document.
Optionally, the converting unit includes: coded sub-units, for being non-sound in the type for determining the original document
When frequency file type, message sink coding is carried out to the original document, the coded format of the original document is changed to audio class
The coded format of file；Conversion subunit is believed for the original document for having carried out message sink coding to be converted into the simulation
Number.
According to one embodiment of present invention, a kind of document transmission system is additionally provided, including first terminal and second is eventually
End, wherein the first terminal for performing the following operations: pass through electromagnetism using the loudspeaker electromagnetic coil of the first terminal
The mode of induction obtains the analog signal of the second terminal transmission；By carrying out reduction treatment to the analog signal, obtain
Original document corresponding with the analog signal；The second terminal is for performing the following operations: determining and to be passed gives described
The analog signal of one terminal；By the loudspeaker electromagnetic coil of the second terminal in the way of electromagnetic induction by the simulation
Signal sends the first terminal to.
Optionally, the first terminal is obtained and the analog signal by carrying out reduction treatment to the analog signal
Corresponding original document includes: that the first terminal carries out demodulation process to the analog signal；The first terminal is to progress
The analog signal after demodulation process carries out digitized sampling processing；The first terminal is to having carried out at digitized sampling
The analog signal after reason is decoded processing, obtains the original document.
Optionally, the second terminal determines that the analog signal to be passed for giving the first terminal includes: described
Two terminals determine the type of the original document to be passed for giving the first terminal；The second terminal is according to the original document
The original document is converted into the analog signal by type.
According to one embodiment of present invention, a kind of storage medium is provided, the storage medium includes the program of storage,
Wherein, method described in any of the above embodiments is executed when described program is run.
According to still another embodiment of the invention, a kind of processor is additionally provided, the processor is used to run program,
In, described program executes method described in any of the above embodiments when running.
Through the invention, due to when carrying out file transmission, being logical using the electromagnetic coil of original loudspeaker in terminal
Cross what the mode of electromagnetic induction was completed, also, when carrying out file transmission using electromagnetic induction technology without being authenticated,
And can simplify document transmission process, further, since using be original loudspeaker in terminal electromagnetic coil carry out text
Part transmission, without additional electromagnetic induction device, the design complexities of terminal are simplified, the relevant technologies are efficiently solved
Present in file transmit cumbersome problem, thus simplified-file transmission complexity, improve the effect of user experience.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the hardware configuration of the mobile terminal of file acquisition method or file transmitting method according to an embodiment of the present invention
Block diagram；
Fig. 2 is the flow chart of file acquisition method according to an embodiment of the present invention；
Fig. 3 is the flow chart of file transmitting method according to an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the acoustic apparatus extended according to embodiments of the present invention；
Fig. 5 is the position view between terminal according to an embodiment of the present invention when carrying out signal transmission；
Fig. 6 is the schematic diagram that loudspeaker coil according to an embodiment of the present invention generates alternating electromagnetic field；
Fig. 7 is the production principle schematic diagram of inductive signal according to an embodiment of the present invention；
Fig. 8 is the work flow diagram of downlink according to an embodiment of the present invention；
Fig. 9 is the work flow diagram of uplink according to an embodiment of the present invention；
Figure 10 is the functional block diagram of signal transmission system according to an embodiment of the present invention；
Figure 11 is the data flow diagram of transfer audio files according to an embodiment of the present invention；
Figure 12 is the flow chart of transmission audio class file according to an embodiment of the present invention；
Figure 13 is the data flow diagram of transmission non-audio file according to an embodiment of the present invention；
Figure 14 is the transmission flow figure of transmission non-audio class file according to an embodiment of the present invention；
Figure 15 is the side AP according to an embodiment of the present invention signal processing module and downlink coding the functional block diagram；
Figure 16 is uplink Decoding function blocks according to an embodiment of the present invention and uplink encoding function module diagram；
Figure 17 is the structural block diagram of file acquisition device according to an embodiment of the present invention；
Figure 18 is the structural block diagram of document conveying apparatus according to an embodiment of the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
Along with the development of intelligent terminal (for example, smart phone), the acoustic element performance for its configuration is stronger and stronger,
Volume is also increasing, but these acoustic elements carry out the device of electroacoustic conversion, function list in particular with moving-coil principle
One, under many application scenarios, the mode used is also limited by its principle of sound and can only use according to Conventional electro-acoustic switching device.
In view of the acoustic apparatus of current main-stream electro-acoustic element, especially speaker types, it is substantially using moving-coil type
The characteristics of structure, it includes moving-coil structure can regard the coil for having one group of fixed the number of turns as from principle, when its into
When the process of row electroacoustic conversion, the electromagnetic field of alternation can be generated by alternating current, while in its surrounding space in coil, utilized
This faint electromagnetic field variation carries out special digital data transmission.
It is essentially all at this stage using the coil of electro-acoustic element as primary line using the acoustic applications of electromagnetic coupling principle
Circle, using the more special induction coil device of the larger the number of turns of volume as secondary coil, the signal of the two couples direction
It has been determined that being coupled from electro-acoustic element to induction coil.
But have the following insufficient using the acoustic applications of electromagnetic coupling principle at this stage:
1) harsher to Structural Design Requirement, being not easy to will be in technology transplant to terminal class product: dedicated electromagnetism sense
Answer coil component volume big, heavy；The induced electricity dynamic formula and faradic spirit that dedicated induction coil device generates simultaneously
Sensitivity and precision all can not meet needed for data transmission；
2) application scheme is required high: in order to realize that electromagnetic coupling acts on, it is necessary to be added in terminal scheme dedicated
Induction coil device, can all increase pressure from cost and design in this way；
3) the existing technology that music enhancing is carried out using electromagnetic induction is all pure analog form, by the shadow of playing environment
Sound is larger；And the signal transmission of whole system is all analog format, has no idea to carry out at the optimizations such as digitized noise reduction
Reason；
4) scheme in the related technology, be basically it is a kind of completed in the way of electromagnetic coupling audio class system connection
With the system of one-way transmission, it is more like a kind of acoustics multiplying arrangement.
Based on above-mentioned consideration, a kind of coil using the original loudspeaker of terminal is provided in embodiments of the present invention and is passed through
The mode of electromagnetic induction carries out the scheme of file transmission.The embodiment of the present invention is illustrated below:
Embodiment 1
Embodiment of the method provided by the embodiment of the present application one can be in mobile terminal, terminal or similar fortune
It calculates and is executed in device.For running on mobile terminals, Fig. 1 is file acquisition method or file according to an embodiment of the present invention
The hardware block diagram of the mobile terminal of transfer approach.As shown in Figure 1, mobile terminal 10 may include one or more (in Fig. 1
Only showing one) (processor 102 can include but is not limited to Micro-processor MCV or programmable logic device FPGA to processor 102
Deng processing unit), memory 104 for storing data and for the transmitting device 106 of communication function.This field is general
Logical technical staff is appreciated that structure shown in FIG. 1 is only to illustrate, and does not cause to limit to the structure of above-mentioned electronic device.
For example, mobile terminal 10 may also include than shown in Fig. 1 more perhaps less component or with different from shown in Fig. 1
Configuration.
Memory 104 can be used for storing the software program and module of application software, such as the file in the embodiment of the present invention
Acquisition methods or the corresponding program instruction/module of file transmitting method, processor 102 are stored in memory 104 by operation
Software program and module realize above-mentioned method thereby executing various function application and data processing.Memory
104 may include high speed random access memory, may also include nonvolatile memory, and such as one or more magnetic storage device dodges
It deposits or other non-volatile solid state memories.In some instances, memory 104 can further comprise relative to processor
102 remotely located memories, these remote memories can pass through network connection to mobile terminal 10.The example of above-mentioned network
Including but not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.
Transmitting device 106 is used to that data to be received or sent via a network.Above-mentioned network specific example may include
The wireless network that the communication providers of mobile terminal 10 provide.In an example, transmitting device 106 includes a Network adaptation
Device (Network Interface Controller, referred to as NIC), can be connected by base station with other network equipments to
It can be communicated with internet.In an example, transmitting device 106 can for radio frequency (Radio Frequency, referred to as
RF) module is used to wirelessly be communicated with internet.
Embodiment 2
A kind of file acquisition method for running on above-mentioned mobile terminal is provided in embodiments of the present invention, and Fig. 2 is basis
The flow chart of the file acquisition method of the embodiment of the present invention, as shown in Fig. 2, the process includes the following steps:
Step S202 is obtained second terminal by the loudspeaker electromagnetic coil of first terminal in the way of electromagnetic induction and passed
Defeated analog signal；
Step S204 is obtained corresponding with the analog signal original by carrying out reduction treatment to the analog signal
File.
Wherein, the terminal that can be for receiving file of aforesaid operations is executed.
Through the invention, due to when carrying out file transmission, being logical using the electromagnetic coil of original loudspeaker in terminal
Cross what the mode of electromagnetic induction was completed, also, when carrying out file transmission using electromagnetic induction technology without being authenticated,
And can simplify document transmission process, further, since using be original loudspeaker in terminal electromagnetic coil carry out text
Part transmission, without additional electromagnetic induction device, the design complexities of terminal are simplified, the relevant technologies are efficiently solved
Present in file transmit cumbersome problem, thus simplified-file transmission complexity, improve the effect of user experience.
In an alternative embodiment, it by carrying out reduction treatment to above-mentioned analog signal, obtains and the analog signal
Corresponding original document includes: to carry out demodulation process to above-mentioned analog signal；To carried out the analog signal after demodulation process into
Digitized sampling processing；Analog signal is decoded processing to having carried out digitized sampling treated, obtains above-mentioned original
File.In the present embodiment, the transmission terminal for sending original document needs to carry out file corresponding when sending file
Processing, including coded treatment, the processing such as analog-to-digital conversion receive lateral terminal and need to carry out analog signal after receiving analog signal
A series of reduction treatment is to obtain original document.
In an alternative embodiment, before carrying out reduction treatment to above-mentioned analog signal, the above method further include:
At least one above-mentioned analog signal is carried out the following processing: amplification, shaping, filtering.To obtain complete analog signal, it is easy to
Carry out subsequent reduction treatment.
A kind of file transmitting method for running on above-mentioned mobile terminal is provided in embodiments of the present invention, and Fig. 3 is basis
The flow chart of the file transmitting method of the embodiment of the present invention, as shown in figure 3, the process includes the following steps:
Step S302 determines the analog signal to be passed for giving first terminal；
Step S304, by the loudspeaker electromagnetic coil of second terminal in the way of electromagnetic induction by above-mentioned analog signal
Send first terminal to.
Wherein, the terminal that can be for sending file of aforesaid operations is executed.
Through the invention, due to when carrying out file transmission, being logical using the electromagnetic coil of original loudspeaker in terminal
Cross what the mode of electromagnetic induction was completed, also, when carrying out file transmission using electromagnetic induction technology without being authenticated,
And can simplify document transmission process, further, since using be original loudspeaker in terminal electromagnetic coil carry out text
Part transmission, without additional electromagnetic induction device, the design complexities of terminal are simplified, the relevant technologies are efficiently solved
Present in file transmit cumbersome problem, thus simplified-file transmission complexity, improve the effect of user experience.
In an alternative embodiment, it is to be passed to determine that the analog signal to be passed for giving above-mentioned first terminal comprises determining that
Give the type of the original document of first terminal；Original document above-mentioned simulation is converted into according to the type of the original document to believe
Number.In the present embodiment, original document may be audio class file, it is also possible to non-audio class file, for audio class file
Processing with non-audio class file has differences.For audio class file, the terminal of sending side can be broadcast according to conventional
The mode of playback frequency file carries out file transmission just, and for non-audio class file, needs to turn non-audio class file
It changes, non-audio class file is converted into the file of audio class, then carry out file transmission by way of playing audio file.Below
The conversion of non-audio class file is illustrated:
In an alternative embodiment, original document above-mentioned simulation is converted into according to the type of above-mentioned original document to believe
It number include: that message sink coding is carried out to above-mentioned original document when the type for determining above-mentioned original document is non-audio file type,
The coded format of the original document is changed to the coded format of audio class file；The original text of message sink coding will be carried out
Part is converted into analog signal.
In an alternative embodiment, before sending above-mentioned analog signal to first terminal, the above method is also wrapped
At least one it includes: above-mentioned analog signal is carried out the following processing: amplification, shaping, filtering.In the present embodiment, to analog signal
The Signal to Noise Ratio (SNR) that can increase analog signal is amplified and/or be filtered, Shape correction can be increased when necessary.
To be easy to transmission of analogue signal.
The file in the present invention is illustrated combined with specific embodiments below:
Embodiment 3
The present invention is directed to moving-coil electroacoustic transducer (especially loudspeaker class device), and needs are played out or passed
Defeated signal (corresponding to above-mentioned original document) carries out digital-to-analogue conversion, and is sent to first loudspeaker coil, this signal
Alternating electromagnetic field is generated around coil；Second coil-moving speaker in the electromagnetic field is in by the work of the electromagnetic field simultaneously
With the generation alternation induced electromotive force on its coil carries out signal amplification and optimization to this alternating electromotive force and then can select
Digital-to-analogue conversion is selected, the analog signal or digital signal similar with original signal are obtained, and then completes to play or obtain transmission file.
Generally speaking, using the present invention in scheme transmission signal during, by the signal transmitted into
Row digital-to-analogue conversion, by necessary digital coding module (downlink coding functional module as shown in figure 15) and digital-to-analogue conversion tune
System obtains the signal type (for example, signal of supersonic band) for being adapted for use with acoustic element broadcasting, then again believes this
First loudspeaker coil number is poured into, signal just generates alternating electromagnetic field by coil around coil；It is in the electromagnetism simultaneously
Second coil-moving speaker in is generated alternation induced electromotive force on its coil, utilizes function by the effect of the electromagnetic field
The uplink sensing processing link (function of signal transmission system functional block diagram as shown in Figure 10 that acoustic apparatus after capable of extending includes
The acoustic apparatus part that can be extended) operation such as signal amplification, shaping, filtering is carried out to this alternating electromotive force, it is solved later
Tune, ADC analog-to-digital conversion and the processing of necessary numerical optimization scheme, send gained digital signal into digital decoding module (such as Figure 16
Shown in uplink Decoding function blocks), and then obtain completely transmitting file.
The system block diagram of file transmission in the embodiment of the present invention can refer to the acoustic apparatus of extension as shown in Figure 4,
Wherein:
Entire speaker system is divided into two kinds of operating modes: play mode (normal mode) and inductive mode in complete machine
(reception pattern)；
Play mode and the corresponding hardware circuit different from of inductive mode, while defining play mode circuit is downlink electrical
Road, inductive mode circuit are upstream circuitry；
The SPK monomer or RCV monomer for playing source of sound, are defined as signal source；
SPK the or RCV monomer for incuding alternating electromagnetic field, is defined as receiver；
To the unit that signal source and reception signal are filtered, it is defined as filter module；
The modular unit for the alternating signal that amplification receiver generates, is defined as amplifier；
For optimizing or the digital arithmetic unit of noise reduction, it is defined as optimization module；
In the embodiment of the present invention most direct application be will have been provided with extension acoustic apparatus function end product it is close
The loudspeaker monomer of another terminal nearby (can refer to modes of emplacement shown in Fig. 5), is passed voice signal by electromagnetic field
It passs, record or plays.
When the speaker system of a terminal, which is in, plays working condition, electric signal pours into vibration inside its loudspeaker monomer
In the coiled wire-wound coil of dynamic system, according to the theory of Ampere's law, synchronous alternating electromagnetic field can be generated around coil (such as simultaneously
Loudspeaker coil shown in fig. 6 generates alternating electromagnetic field)；At this moment by the speaker system of a Function Extension close to conventional loudspeaking
The coil of device, Function Extension loudspeaker would be in the electromagnetic field of this alternation；Further according to transformer principle, alternating electromagnetic field
Across the coiled wire-wound coil of Function Extension loudspeaker, synchronous alternate electrical signal (induction letter as shown in Figure 7 can be generated in coil
Number production principle), by the amplification and filtering of function extension system or ADC and add certain digital optimization processing, so that it may
To obtain necessary analog signal or digital information.
The technical essential of device in the embodiment of the present invention is as follows:
The loudspeaker device needs of Function Extension are constantly in induction reception state during non-broadcasting, therefore are designing
In, the electromagnetic interference needs of speaker area are paid close attention to；
The speaker system of Function Extension has mandatory requirement for organization plan of the loudspeaker monomer in terminal device；
Consider that metal structure declines to the shielding of electromagnetic field and structural distance to loudspeaker coil induction alternating electromagnetic field ability
Subtract；
The electrical signal amplitude of induced electromotive force is very small；Amplitude output signal is increased, Function Extension acoustic apparatus is used for
In loudspeaker monomer need appropriate to increase the number of turns and accurately control the number of turns number；It also needs to carry out letter in whole device simultaneously
Number filtering and amplification, increase the signal-to-noise ratio (Signal-to-Noise Ratio, referred to as SNR) of output signal；Even also need
Necessary signal shaping is added before analog-digital converter (Analog-Digital Converter, referred to as ADC) module；
The design core of entire function expanding device is to match a set of upstream circuitry to loudspeaker unit, includes but not only wraps
Containing filtering, amplification, Shaping Module；There is certain optimization to loudspeaker monomer simultaneously；
Electro Magnetic Compatibility (the ElectroMagnetic of electromagnetism interference is also added in entire circuit
Compatibility, referred to as EMC) circuit, EMC circuit and shaping circuit are provided to reduce the electromagnetism of terminal complete machine complexity
Influence of the environment to coil-induced alternating electromagnetic field；
Device in the embodiment of the present invention works in play mode, the work of groundwork process and audio downlink
Process is identical (downlink operation process as shown in Figure 8)；When in the embodiment of the present invention device work in inductive mode,
Its workflow uplink workflow as shown in Figure 9, its biggest characteristic is that output can have Mutiple Choice: 1. direct mould
Quasi- signal plays, and records after 2. turning digital signal, plays or records after 3. turning the optimized algorithm process of digital signal；
Wherein, downlink operation process shown in Fig. 8 includes the following steps:
S802, AP starting；
S804, the judgement of uplink and downlink control unit are to execute uplink inductive operation or execute downlink play operation；
S806 plays operating mode into downlink when determining that executing downlink plays；
S808 receives the input of downlink played data；
S810 incudes operating mode into uplink；
S812, downlink processing；
S814, downlink finish playing.
Uplink workflow shown in Fig. 9 includes the following steps:
S902, AP starting；
S904, the judgement of uplink and downlink control unit are to execute uplink inductive operation or execute downlink play operation；
S906 plays operating mode into downlink when determining that executing downlink plays；
S908 incudes operating mode into uplink when determining that executing uplink incudes；
S910, alternating electromagnetic field sensed data；
S912, downlink processing signal amplification module handle signal；
S914, downlink processing simulation Shaping Module handle signal；
S916, downlink processing analog filter block handle signal；
S918, judging whether can direct play signal；
S920, judging result be can direct play signal when, into downlink play operating mode；
S922, judging result be cannot direct play signal when, to signal carry out ADC analog-to-digital conversion；
S924, downlink processing number optimization channel；
S926 judges whether directly to play or record；
S928, be judged as recorded when, carry out digitalized audio record；
S930, be judged as play out when, into downlink play operating mode；
S932, uplink induction are completed.
It is the electro-acoustic element funtion part that present system is covered, the composition block diagram of the present invention in the terminal such as Figure 10 above
It is shown, it is the acoustic apparatus circuit block diagram of Function Extension in dotted line frame, there is special module: uplink and downlink in the AP system in left side
Codec unit includes uplink decoder module and downlink coding module in the unit, and the function of realization is: uplink module is by function
The acoustic apparatus that can be extended is processed that digital information is decoded into the manageable digital file of AP system according to agreement；Downlink
Module encodes the advanced digitized of information for needing to transmit, and is then fed into the downlink of the acoustic apparatus of Function Extension, complete
At channel coding and digital-to-analogue conversion, initial digital signal is changed into analog signal, via the supersonic band of speaker system
It plays out.
The operation of entire signal transmission is completed, two terminals sent and received signals all must be according to present system
Functional block diagram is configured, while during carrying out data transmission, and needs to carry out position pendulum according to mode shown in fig. 5
Put, keep the speaker system of two terminals speak direction as close as possible to.
Transmitted by taking music file as an example: in this application mode, the terminal of playing music, which can be used, to be possessed
The terminal of the acoustic apparatus of Function Extension can also make general terminal.The terminal for receiving music, which must use, extension function
The terminal of the uplink decoder module of the uplink inductive link and side AP of acoustic apparatus.Data flow such as Figure 11 of entire transmission process
It is shown: because audio file itself does not need to carry out Channel Coding and Modulation just to be the class signal for being suitble to acoustical device to play
Type, therefore the transmission of this class file can bypass the side AP uplink and downlink coding/decoding module.Specific signal processing flow such as Figure 12
It is shown.Wherein, Figure 12 includes the following steps:
S1202 initiates music file transmission；
S1204, into the downlink of playback terminal Function Extension acoustic apparatus；
S1206, the loudspeaker supersonic band by sending terminal play out music file；
S1208, the loudspeaker for receiving terminal carry out electromagnetic induction；
S1210 receives terminal function extension acoustic apparatus uplink and adopts to induced electromotive force progress demodulation digitlization
Sample；
The side S1212, AP uplink decoder module is decoded the digital information sampled and saves into formatted file.
In whole flow process, the most key is following two o'clock:
Audio class file needs not move through uplink coding module in transmitting terminal；
The file that receiving end is handled well can be stored directly on local storage, or selection does not enter AP system, and
It is directly entered terminal codec system and carries out relevant treatment.
As shown in figure 13 for the data flow of non-audio class file transmission, specific process flow diagram is as shown in figure 14.Its
In, Figure 14 includes the following steps:
S1402 sends terminal AP and initiates transmission non-audio class file process；
S1404 sends user equipment downlink coding module and carries out message sink coding to file；
S1406, by the loudspeaker supersonic band playing music for sending terminal；
S1408, the loudspeaker for receiving terminal carry out electromagnetic induction；
S1410 receives terminal function extension acoustic apparatus uplink and adopts to induced electromotive force progress demodulation digitlization
Sample；
The side S1412, AP uplink decoder module is decoded the digital information sampled and saves into formatted file.
Non-audio class data will be transmitted, it is necessary to first carry out message sink coding, the coded format of conventional numerical information is become
It is more similar to the coded format of audio class file, this single stepping is exactly the core work of the side AP downlink coding module；It obtains
New digital information play link modulation through the downlink of Function Extension acoustic apparatus, information is attached to and is suitable for acoustical device and broadcasts
On the signal put, acoustical device is poured into, external in playback terminal generates alternating electromagnetic field；
The uplink inductive link coupling that terminal recycles Function Extension acoustic apparatus is received, data need to be transmitted by being loaded
Analog signal, then this analog signal is demodulated and decoded by its uplink decoding chain road, obtains a class audio frequency
File, then the downlink decoder module of receiving terminal carries out unloading according to agreement or defined file format, completes entire file
Transmission flow.
Compared with prior art, the technical effect of apparatus of the present invention, application range and on end product can
Realisation all great enhancing.
Firstly, existing acoustic element on apparatus of the present invention using terminal product, it is only necessary to carry out suitable device optimization
And circuit design, it both can satisfy the demand of design scheme.This design cost is minimum, and occupied terminal structure and layout space is most
It is few, the ease of use of terminal user is influenced minimum；
Secondly, existing Radio Transmission Technology scheme requires to defer to standard agreement, code key inspection and authentication etc. are completed
Operation, it is poorer than present system using conveniency.
Again, the existing product form for completing audio related data transmission using electromagnetic induction skill is relatively simple, only class
Like the product of " magic sound " music box etc, and prior art core is that pure analog form is realized, in application process can
The potentiality much interfered, and do not optimized.During the link of pure simulation, it can only be filtered on a small quantity, to noise
Elimination it is weaker；And apparatus of the present invention carry out digitized processing, the prior art of solution after electromagnetic induction may be implemented again
In be difficult to filter, noise reduction and acoustic algorithms optimization the defects of.
Finally, apparatus of the present invention may be implemented to non-audio class file carry out asynchronous transmission, in this way application aspect in addition to
Outside quick transfer audio files, a kind of approach of novel transmitting small file can also be provided for user.
Apparatus of the present invention can also be transmitted in heterochronous digital signal, either synchronously or asynchronously be recorded, synchronizing and put extension etc. outside in many ways
It deep ploughs in face.
Embodiment 4
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but it is very much
In the case of the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to existing
The part that technology contributes can be embodied in the form of software products, which is stored in a storage
In medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, calculate
Machine, server or network equipment etc.) execute method described in each embodiment of the present invention.
A kind of file acquisition device is additionally provided in the present embodiment, and the device is real for realizing above-described embodiment and preferably
Mode is applied, the descriptions that have already been made will not be repeated.As used below, the soft of predetermined function may be implemented in term " module "
The combination of part and/or hardware.Although device described in following embodiment is preferably realized with software, hardware, or
The realization of the combination of software and hardware is also that may and be contemplated.
Figure 17 is the structural block diagram of file acquisition device according to an embodiment of the present invention, and as shown in figure 17, which includes
First, which obtains module 172 and second, obtains module 174, is illustrated below to the device:
First obtains module 172, is obtained in the way of electromagnetic induction for the loudspeaker electromagnetic coil by first terminal
The analog signal for taking second terminal to transmit；Second obtain module 174, be connected to it is above-mentioned first obtain module 172, for by pair
Above-mentioned analog signal carries out reduction treatment, obtains original document corresponding with above-mentioned analog signal.
In an alternative embodiment, above-mentioned first acquisition module 172 includes: first processing units, for above-mentioned
Analog signal carries out demodulation process；The second processing unit, for digitizing to having carried out the analog signal after demodulation process
Sampling processing；Acquiring unit obtains original for analog signal to be decoded processing to having carried out digitized sampling treated
File.
In an alternative embodiment, above-mentioned apparatus further includes first processing module, for above-mentioned analog signal
At least one before carrying out reduction treatment, above-mentioned analog signal is carried out the following processing: amplification, shaping, filtering.
Figure 18 is the structural block diagram of document conveying apparatus according to an embodiment of the present invention, and as shown in figure 18, which includes
Determining module 182 and delivery module 184, are below illustrated the device:
Determining module 182, for determining the analog signal to be passed for giving first terminal；Delivery module 184 is connected to above-mentioned
Determining module 182 is transmitted analog signal in the way of electromagnetic induction for the loudspeaker electromagnetic coil by second terminal
To first terminal.
In an alternative embodiment, above-mentioned determining module 182 comprises determining that unit, to be passed gives for determining
The type of the original document of one terminal；Converting unit, for original document to be converted into the mould according to the type of original document
Quasi- signal.
In an alternative embodiment, above-mentioned converting unit includes: coded sub-units, for determining original document
When type is non-audio file type, message sink coding is carried out to original document, the coded format of original document is changed to audio
The coded format of class file；Conversion subunit, for the original document for carrying out message sink coding to be converted into analog signal.
In an alternative embodiment, above-mentioned apparatus further includes Second processing module, for by above-mentioned analog signal
At least one before sending first terminal to, above-mentioned analog signal is carried out the following processing: amplification, shaping, filtering.
According to one embodiment of present invention, a kind of document transmission system is additionally provided, including first terminal and second is eventually
End, wherein the first terminal for performing the following operations: using the loudspeaker electromagnetic coil of first terminal by electromagnetic induction
Mode obtains the analog signal of second terminal transmission；By carrying out reduction treatment to analog signal, obtain corresponding with analog signal
Original document；Second terminal is for performing the following operations: determining the analog signal to be passed for giving first terminal；Eventually using second
The loudspeaker electromagnetic coil at end sends analog signal to first terminal by way of electromagnetic induction.
In an alternative embodiment, above-mentioned first terminal is by carrying out reduction treatment, acquisition and mould to analog signal
The quasi- corresponding original document of signal includes: that first terminal carries out demodulation process to analog signal；First terminal is to being demodulated
Treated, and the analog signal carries out digitized sampling processing；First terminal is to having carried out digitized sampling treated simulation
Signal is decoded processing, obtains original document.
In an alternative embodiment, above-mentioned first terminal to the analog signal carry out the reduction treatment it
At least one before, above-mentioned analog signal can also be carried out the following processing: amplification, shaping, filtering.
In an alternative embodiment, above-mentioned second terminal determines that the analog signal to be passed for giving first terminal includes:
Second terminal determines the type of the original document to be passed for giving first terminal；Second terminal will be original according to the type of original document
File is converted into analog signal.
In an alternative embodiment, original document is converted into mould according to the type of original document by above-mentioned second terminal
Quasi- signal includes: to carry out message sink coding to original document when the type for determining above-mentioned original document is non-audio file type,
The coded format of original document is changed to the coded format of audio class file；The original document of message sink coding will be carried out
It is converted into analog signal.
In an alternative embodiment, above-mentioned second terminal may be used also before sending analog signal to first terminal
At least one to be carried out the following processing to above-mentioned analog signal: amplification, shaping, filtering.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Following manner realization is crossed, but not limited to this: above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with any
Combined form is located in different processors.
The embodiments of the present invention also provide a kind of storage medium, which includes the program of storage, wherein above-mentioned
Program executes method described in any of the above embodiments when running.
Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to: USB flash disk, read-only memory (Read-
Only Memory, referred to as ROM), it is random access memory (Random Access Memory, referred to as RAM), mobile hard
The various media that can store program code such as disk, magnetic or disk.
The embodiments of the present invention also provide a kind of processor, the processor is for running program, wherein program operation
Step in Shi Zhihang any of the above-described method.
As can be seen from the above embodiments, in embodiments of the present invention, Function Extension has been carried out to speaker system: from simple
Electro-acoustic transducing device becomes that electroacoustic conversion can be completed, and can generate the magnetic of corresponding change electric signal by induction variation magnetic field
Power conversion device.Also, using the speaker system of this Function Extension, cooperates necessary coding, Transmission system, complete data
Transmission channel is built, it can real-time Transmission audio file can also complete the function of asynchronous transmission non-audio class file.
The present invention program is believed digital data modulation at simulation from electromagnetic field inducing principle, using transformer principle
Number, it is transmitted by the ultrasonic wave working frequency range of acoustical device, devises a kind of completely new information transmission mode, and transmit function
It consumes small, has very strong practicability and technology realizability, especially more have irreplaceable advantage in application terseness.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.It is all within principle of the invention, it is made it is any modification, etc.
With replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (16)
1. a kind of file acquisition method characterized by comprising
The analog signal of second terminal transmission is obtained in the way of electromagnetic induction by the loudspeaker electromagnetic coil of first terminal；
By carrying out reduction treatment to the analog signal, original document corresponding with the analog signal is obtained.
2. the method according to claim 1, wherein being obtained by carrying out reduction treatment to the analog signal
The original document corresponding with the analog signal includes:
Demodulation process is carried out to the analog signal；
Digitized sampling processing is carried out to the analog signal after demodulation process has been carried out；
The analog signal is decoded processing to having carried out digitized sampling treated, obtains the original document.
3. the method according to claim 1, wherein to the analog signal carry out the reduction treatment it
Before, the method also includes:
At least one the analog signal is carried out the following processing: amplification, shaping, filtering.
4. a kind of file transmitting method characterized by comprising
Determine the analog signal to be passed for giving first terminal；
The analog signal is sent to described in the way of electromagnetic induction by the loudspeaker electromagnetic coil of second terminal
One terminal.
5. according to the method described in claim 3, it is characterized in that, determining that the analog signal to be passed for giving first terminal includes:
Determine the type of the original document to be passed for giving the first terminal；
The original document is converted into the analog signal according to the type of the original document.
6. according to the method described in claim 5, it is characterized in that, according to the type of the original document by the original document
Being converted into the analog signal includes:
When the type for determining the original document is non-audio file type, message sink coding is carried out to the original document, it will
The coded format of the original document is changed to the coded format of audio class file；
The original document for having carried out message sink coding is converted into the analog signal.
7. according to the method described in claim 4, it is characterized in that, by the analog signal send to the first terminal it
Before, the method also includes:
At least one the analog signal is carried out the following processing: amplification, shaping, filtering.
8. a kind of file acquisition device characterized by comprising
First obtains module, and second is obtained in the way of electromagnetic induction eventually for the loudspeaker electromagnetic coil by first terminal
Hold the analog signal of transmission；
Second obtains module, for obtaining corresponding with the analog signal by carrying out reduction treatment to the analog signal
Original document.
9. device according to claim 8, which is characterized in that described first, which obtains module, includes:
First processing units, for carrying out demodulation process to the analog signal；
The second processing unit, for carrying out digitized sampling processing to having carried out the analog signal after demodulation process；
Acquiring unit, for being decoded processing to having carried out digitized sampling treated the analog signal, described in acquisition
Original document.
10. a kind of document conveying apparatus characterized by comprising
Determining module, for determining the analog signal to be passed for giving first terminal；
Delivery module, for the loudspeaker electromagnetic coil by second terminal by the analog signal in the way of electromagnetic induction
Send the first terminal to.
11. device according to claim 10, which is characterized in that the determining module includes:
Determination unit, for determining the type of the original document to be passed for giving the first terminal；
Converting unit, for the original document to be converted into the analog signal according to the type of the original document.
12. device according to claim 11, which is characterized in that the converting unit includes:
Coded sub-units, for the type for determining the original document be non-audio file type when, to the original document
Message sink coding is carried out, the coded format of the original document is changed to the coded format of audio class file；
Conversion subunit, for the original document for having carried out message sink coding to be converted into the analog signal.
13. a kind of document transmission system, which is characterized in that including first terminal and second terminal, wherein
The first terminal is for performing the following operations: passing through electromagnetic induction using the loudspeaker electromagnetic coil of the first terminal
Mode obtain the analog signal of second terminal transmission；By carrying out reduction treatment, acquisition and institute to the analog signal
State the corresponding original document of analog signal；
The second terminal is for performing the following operations: determining the analog signal to be passed for giving the first terminal；Using described
The loudspeaker electromagnetic coil of second terminal sends the analog signal to the first terminal by way of electromagnetic induction.
14. system according to claim 13, which is characterized in that the first terminal is by carrying out the analog signal
Reduction treatment, obtaining original document corresponding with the analog signal includes:
The first terminal carries out demodulation process to the analog signal；
The first terminal carries out digitized sampling processing to the analog signal after having carried out demodulation process；
The analog signal is decoded processing to the first terminal to having carried out digitized sampling treated, obtains the original
Beginning file.
15. system according to claim 13, which is characterized in that the second terminal determine it is to be passed give it is described first eventually
End the analog signal include:
The second terminal determines the type of the original document to be passed for giving the first terminal；
The original document is converted into the analog signal according to the type of the original document by the second terminal.
16. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein when described program is run
Method described in any one of perform claim requirement 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710487483.6A CN109120309A (en) | 2017-06-23 | 2017-06-23 | File acquisition method and device, file transmitting method and device, storage medium |
| PCT/CN2018/091461 WO2018233561A1 (en) | 2017-06-23 | 2018-06-15 | Method and apparatus for acquiring file, method and apparatus for transferring file, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710487483.6A CN109120309A (en) | 2017-06-23 | 2017-06-23 | File acquisition method and device, file transmitting method and device, storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109120309A true CN109120309A (en) | 2019-01-01 |
Family
ID=64733243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710487483.6A Withdrawn CN109120309A (en) | 2017-06-23 | 2017-06-23 | File acquisition method and device, file transmitting method and device, storage medium |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109120309A (en) |
| WO (1) | WO2018233561A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019118915A1 (en) * | 2019-07-12 | 2021-01-14 | František Mojžiš | Analog firewall |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045091A (en) * | 2010-12-31 | 2011-05-04 | 武汉天喻信息产业股份有限公司 | Short range data transmission device and method based on electromagnetic induction |
| US20140369170A1 (en) * | 2011-09-16 | 2014-12-18 | Nokia Corporation | Near field communication apparatus |
| CN105024764A (en) * | 2015-07-24 | 2015-11-04 | 上海斐讯数据通信技术有限公司 | Audio-format-based file transmission method and system |
| CN105591675A (en) * | 2016-01-19 | 2016-05-18 | 惠州Tcl移动通信有限公司 | Mobile terminal short-distance wireless transmission system and method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5694139A (en) * | 1994-06-28 | 1997-12-02 | Sony Corporation | Short-distance communication antenna and methods of manufacturing and using the short-distance communication antenna |
| EP1443678A1 (en) * | 2003-02-03 | 2004-08-04 | Sulzer Markets and Technology AG | Apparatus for inductive transmission of electrical signals |
| CN101955093B (en) * | 2009-07-20 | 2013-02-27 | 杭州优迈科技有限公司 | Operation and control system of multi-base-station wireless remote elevator calling and control method |
| CN103475106A (en) * | 2013-08-15 | 2013-12-25 | 葛东良 | Rotator remote measurement apparatus and remote measurement method thereof |
| CN106341163B (en) * | 2016-10-21 | 2019-06-07 | 上海航天控制技术研究所 | A kind of short distance magnetic coupling wireless digital signal Transmission system and method |
-
2017
- 2017-06-23 CN CN201710487483.6A patent/CN109120309A/en not_active Withdrawn
-
2018
- 2018-06-15 WO PCT/CN2018/091461 patent/WO2018233561A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045091A (en) * | 2010-12-31 | 2011-05-04 | 武汉天喻信息产业股份有限公司 | Short range data transmission device and method based on electromagnetic induction |
| US20140369170A1 (en) * | 2011-09-16 | 2014-12-18 | Nokia Corporation | Near field communication apparatus |
| CN105024764A (en) * | 2015-07-24 | 2015-11-04 | 上海斐讯数据通信技术有限公司 | Audio-format-based file transmission method and system |
| CN105591675A (en) * | 2016-01-19 | 2016-05-18 | 惠州Tcl移动通信有限公司 | Mobile terminal short-distance wireless transmission system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018233561A1 (en) | 2018-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109246671B (en) | Data transmission method, device and system | |
| JP5655159B2 (en) | Hearing aid with dual mode radio | |
| AU2009342798B2 (en) | Method for establishing short-range, wireless communication between a mobile phone and a hearing aid | |
| CN103177730B (en) | Decoding device, communication terminal, base station apparatus and coding/decoding method | |
| CN109445741B (en) | Data transmission method and device, electronic equipment and storage medium | |
| CN101789239A (en) | Audio processing in a portable listening device | |
| CN105653237B (en) | Audio play control method, audio broadcasting control system and terminal | |
| CN204616044U (en) | Based on the music share system of Bluetooth technology | |
| CN104991755B (en) | A kind of information processing method and electronic equipment | |
| CN101018245A (en) | Filter coefficient setting device, filter coefficient setting method, and program | |
| CN106973160A (en) | A kind of method for secret protection, device and equipment | |
| CN106408253A (en) | Event prompting method, device and system | |
| CN112530444A (en) | Audio encoding method and apparatus | |
| Arentz et al. | Near ultrasonic directional data transfer for modern smartphones | |
| CN109120309A (en) | File acquisition method and device, file transmitting method and device, storage medium | |
| CN104010060A (en) | Method and electronic device for recognizing identity of incoming caller | |
| Thibodeau | Between the listener and the talker: connectivity options | |
| KR101840013B1 (en) | Proximity payment system using inaudible sound wave technology | |
| US9942670B2 (en) | Hearing aid device and method for operating the hearing aid device with a communication device | |
| CN106341765A (en) | Method For Operating A Hearing Aid System And Hearing Aid System | |
| CN102322928B (en) | Electronic scale, mobile equipment, body weight measuring system and wireless transmission method | |
| CN207234909U (en) | A kind of intelligent mobile terminal | |
| KR101442027B1 (en) | Sound processing system to recognize earphones for portable devices using sound patterns, mathod for recognizing earphone for portable devices using sound patterns, and mathod for sound processing using thereof | |
| CN111385780A (en) | Bluetooth audio signal transmission method and device | |
| WO2015154460A1 (en) | Audio data recording method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190101 |
|
| WW01 | Invention patent application withdrawn after publication |