WO2018233561A1

WO2018233561A1 - Method and apparatus for acquiring file, method and apparatus for transferring file, and storage medium

Info

Publication number: WO2018233561A1
Application number: PCT/CN2018/091461
Authority: WO
Inventors: 蒋晓
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-06-23
Filing date: 2018-06-15
Publication date: 2018-12-27
Also published as: CN109120309A

Abstract

Provided in the present disclosure are a method and apparatus for acquiring a file, a method and apparatus for transferring a file, a system for transmitting a file, and a storage medium. The method for acquiring a file comprises: performing electromagnetic induction by means of an electromagnetic coil of a moving-coil electroacoustic transducer so as to receive a signal that is transmitted by means of the magnetic effect of a current; performing reduction processing on the received signal so as to acquire an original file that corresponds to the signal. The method for transferring the file comprises: determining a signal to be transferred; transferring the signal by means of the magnetic effect of a current of the electromagnetic coil of the moving-coil electroacoustic transducer.

Description

File acquisition method and device, file transmission method and device, and storage medium

Technical field

The present disclosure relates to the field of communications, and in particular, to a file acquisition method and apparatus, a file transmission method and apparatus, and a storage medium.

Background technique

As the application of intelligent terminals penetrates into various fields of people's lives, the files shared between terminals are more and more frequent, especially the transmission of small files is very frequent, especially the audio and picture files account for the vast majority, and now the mainstream near field Transmission technologies include Bluetooth (BT) and Local Area Network (WIFI) technologies.

BT transmission is point-to-point transmission. A BT originating source can only connect to a unique target device, and requires secret key authentication. Each transmission needs to be confirmed. WIFI transmission utilizes local area network technology, which can complete cell broadcast or point-to-point transmission. When using local area network technology for near field communication, identity authentication is required.

Summary of the invention

An embodiment of the present disclosure provides a file obtaining method, including: acquiring, by using electromagnetic induction of a speaker electromagnetic coil of a first terminal, an analog signal transmitted by a second terminal; and performing a restoration process on the analog signal to acquire and The original file corresponding to the analog signal.

An embodiment of the present disclosure provides a file transfer method, including: determining an analog signal to be transmitted to a first terminal; transmitting the analog signal to the first by electromagnetic induction using a speaker electromagnetic coil of the second terminal terminal.

An embodiment of the present disclosure provides a file obtaining apparatus, including: a first acquiring module, configured to acquire an analog signal transmitted by a second terminal by using a speaker electromagnetic coil of the first terminal by using electromagnetic induction; and a second acquiring module, The original file corresponding to the analog signal is obtained by performing a restoration process on the analog signal.

An embodiment of the present disclosure provides a file transfer apparatus, including: a determining module for determining an analog signal to be transmitted to a first terminal; and a transmitting module for utilizing a speaker electromagnetic coil of the second terminal by electromagnetic induction The analog signal is transmitted to the first terminal.

An embodiment of the present disclosure further provides a file transmission system including a first terminal and a second terminal, wherein the first terminal is configured to perform an operation of: electromagnetically sensing by using a speaker electromagnetic coil of the first terminal Obtaining an analog signal transmitted by the second terminal; acquiring an original file corresponding to the analog signal by performing a restoration process on the analog signal; and the second terminal is configured to: determine to be transmitted to the An analog signal of the first terminal; transmitting the analog signal to the first terminal by electromagnetic induction using a speaker electromagnetic coil of the second terminal.

Embodiments of the present disclosure provide a storage medium including a stored program, wherein the program executes a method according to the present disclosure while it is running.

Embodiments of the present disclosure also provide a processor for running a program, wherein the program executes a method in accordance with the present disclosure while it is running.

DRAWINGS

The accompanying drawings are included to provide a further

1 is a block diagram showing a hardware configuration of a mobile terminal that implements a file acquisition method and/or a file transfer method according to an embodiment of the present disclosure;

2 is a flowchart of a file acquisition method in accordance with an embodiment of the present disclosure;

3 is a flowchart of a file transfer method in accordance with an embodiment of the present disclosure;

4 is a schematic structural diagram of an apparatus for implementing a file acquisition method and a file transfer method according to an embodiment of the present disclosure;

5 is a schematic diagram of a position between terminals that implement a file acquisition method and a file transfer method according to an embodiment of the present disclosure;

6 is a schematic diagram of generating an electromagnetic field around an electromagnetic coil of a moving coil type electroacoustic transducer that implements a document transfer method according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram showing a principle of generating a sensing signal in a file acquiring method according to an embodiment of the present disclosure; FIG.

8 is a flowchart showing the operation of a file transfer device according to an embodiment of the present disclosure;

9 is a flowchart showing the operation of a file acquiring apparatus according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of an apparatus for implementing a file acquisition method and a file transfer method according to an embodiment of the present disclosure; FIG.

11 is a schematic diagram of a data flow for transmitting an audio file in accordance with an embodiment of the present disclosure;

12 is a flow diagram of transmitting an audio file in accordance with an embodiment of the present disclosure;

13 is a schematic diagram of a data flow for transmitting a non-audio file, in accordance with an embodiment of the present disclosure;

14 is a flowchart of transmitting a non-audio file, in accordance with an embodiment of the present disclosure;

15 is a functional block diagram of a file transfer apparatus according to an embodiment of the present disclosure;

16 is a functional block diagram of a file acquisition apparatus according to an embodiment of the present disclosure;

17 is a structural block diagram of a file acquiring apparatus according to an embodiment of the present disclosure;

FIG. 18 is a block diagram showing the structure of a file transfer apparatus according to an embodiment of the present disclosure.

Detailed ways

The present disclosure will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The embodiments of the present disclosure and the description thereof are for explaining the present disclosure, and are not intended to limit the present disclosure.

It should be noted that the terms “first”, “second” and the like in the present disclosure are used to distinguish similar objects, and are not used to describe a specific order.

Along with the development of smart terminals (for example, smart phones), the performance of the acoustic components configured for them is becoming more and more powerful and larger, but these acoustic components have a single function, generally only as a conventional electroacoustic transducer. use.

For example, a moving coil type electroacoustic transducer is a current mainstream acoustic component for electroacoustic conversion, and a moving coil type electroacoustic transducer has a set of coils with a fixed number of turns, and when it is subjected to electroacoustic conversion, a current is passed through the coil. Thus, an electromagnetic field is generated in the space around the coil, and embodiments of the present disclosure relate to a technical solution for signal transmission using the electromagnetic field.

The technical solution provided by the embodiments of the present disclosure can be applied to devices such as mobile terminals, computer terminals, and the like as long as the device includes a moving coil type electroacoustic transducer. The following describes an example in which the technical solution provided by the embodiment of the present disclosure is applied to a mobile terminal.

1 is a hardware block diagram of a mobile terminal that implements a file acquisition method and/or a file transfer method according to an embodiment of the present disclosure. As shown in FIG. 1, mobile terminal 10 may include one or more processors 102. As an example, only one processor 102 is shown in FIG. 1. Processor 102 may include, but is not limited to, a microprocessor unit (MPU), Programming logic device (PLD), etc. The mobile terminal 10 may also include a memory 104 for storing data and a transmission device 106 for communication functions. It is to be understood by those skilled in the art that the structure shown in FIG. 1 is merely illustrative and does not limit the technical solutions provided by the embodiments of the present disclosure. For example, the mobile terminal 10 may have a different configuration than that shown in FIG. 1 as needed, and may include more or fewer components than those shown in FIG.

The memory 104 can be used to store program instructions of application software, such as file acquisition methods and/or file transfer methods corresponding to embodiments of the present disclosure, and the processor 102 executes various applications by running program instructions stored in the memory 104. For example, a file acquisition method and/or a file transfer method that implement an embodiment of the present disclosure. Memory 104 may include high speed random access memory, and may also include non-volatile memory, for example, may include one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some examples, memory 104 may further include memory remotely located relative to processor 102, which may be connected to mobile terminal 10 over a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, or a combination thereof.

Transmission device 106 is for receiving or transmitting data via a network. An example of the network may include a wireless network provided by a communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a Network Interface Controller (NIC), so that communication with other network devices can be performed through the base station. In one example, the transmission device 106 can be a Radio Frequency (RF) device to communicate wirelessly with other devices.

2 is a flow chart of a file acquisition method in accordance with an embodiment of the present disclosure. For example, the file acquisition method can be applied to the mobile terminal 10 as shown in FIG. 1, so that the mobile terminal 10 can receive a file by the file acquisition method of the embodiment of the present disclosure.

As shown in FIG. 2, the file acquiring method of the embodiment of the present disclosure includes the steps of: S202: performing electromagnetic induction through an electromagnetic coil of a moving coil type electroacoustic transducer to receive an analog signal transmitted by a magnetic effect of a current; and S204, The original file corresponding to the analog signal is obtained by performing a restoration process on the received analog signal.

In the file acquisition method of the embodiment of the present disclosure, the electromagnetic signal transmitted by the magnetic coil of the original moving coil type electroacoustic transducer in the mobile terminal can be received to receive an analog signal transmitted by the magnetic effect of the current. Since the file transmission using the electromagnetic technology does not need to be authenticated, the file acquisition method using the embodiment of the present disclosure can simplify the file transmission process and improve the user experience. In addition, since the file acquisition method of the embodiment of the present disclosure utilizes the electromagnetic coil of the moving coil type electroacoustic transducer originally in the mobile terminal, no additional electromagnetic induction device is required, thereby simplifying the file acquisition method applying the embodiment of the present disclosure. The design complexity of the mobile terminal is cost-effective.

In some embodiments, step S204 includes: performing demodulation processing on the received analog signal; performing digital sampling processing on the signal obtained by the demodulation processing; and performing decoding processing on the signal obtained by the digitized sampling processing to obtain the original file. . In this case, when the transmitting terminal that transmits the original file needs to perform corresponding processing on the file, including encoding processing, digital-to-analog conversion processing, modulation processing, and the like.

In some embodiments, the file acquisition method of the embodiment of the present disclosure further includes performing at least one of amplifying, shaping, and filtering processing on the received analog signal before step S204. In this case, the subsequent reduction processing in step S204 is facilitated.

FIG. 3 is a flowchart of a file transfer method according to an embodiment of the present disclosure. For example, the file transfer method can be applied to the mobile terminal 10 as shown in FIG. 1, so that the mobile terminal 10 can transfer a file by the file transfer method of the embodiment of the present disclosure.

As shown in FIG. 3, the file transfer method of the embodiment of the present disclosure includes the steps of: S302: determining an analog signal to be transmitted; and S304, transmitting the analog signal by a magnetic effect of a current of a solenoid of the moving coil type electroacoustic transducer.

In the file transfer method of the embodiment of the present disclosure, the analog signal can be transmitted by the magnetic effect of the current of the electromagnetic coil of the original moving coil type electroacoustic transducer in the mobile terminal. Since file transmission using electromagnetic technology is not required to be authenticated, the file transfer method using the embodiment of the present disclosure can simplify the file transfer process and improve the user experience. In addition, since the file transfer method of the embodiment of the present disclosure utilizes the electromagnetic coil of the original moving coil type electroacoustic transducer in the mobile terminal, no additional electromagnetic equipment is required, thereby simplifying the application of the file transfer method of the embodiment of the present disclosure. The design complexity of the mobile terminal saves costs.

In some embodiments, step S302 includes determining the type of the original file to be transmitted; converting the original file into an analog signal to be transmitted according to the type of the original file to be transmitted.

In this embodiment, the original file may be an audio file or a non-audio file. For an audio file, the mobile terminal on the transmitting side can perform file transfer in a manner of playing an audio file in a conventional manner, and for a non-audio file, the non-audio file can be converted into an audio file, and then the file is transferred by playing the audio file.

In some embodiments, converting the original file into an analog signal to be transmitted according to a type of the original file to be transmitted includes: performing source coding on the original file to be transmitted when determining that the original file to be transmitted is a non-audio file, The original file is encoded into an audio file; the audio file corresponding to the original file to be transmitted obtained by the source encoding is converted into an analog signal.

In some embodiments, the file transfer method of the embodiment of the present disclosure further includes performing at least one of an amplification, shaping, and filtering process on the analog signal to be transmitted before step S304. In this case, the signal-to-noise ratio (SNR) of the analog signal to be transmitted can be increased, and the analog signal can be easily transmitted in the subsequent step S304.

In the technical solution provided by the embodiment of the present disclosure, the file to be transmitted (ie, the original file) is digital-to-analog converted, and then the analog signal corresponding to the file to be transmitted obtained by digital-to-analog conversion is transmitted to the mobile device in the form of current. An electromagnetic coil of a coil type electroacoustic transducer (for example, a moving coil type speaker or a moving coil type receiver), such that an electromagnetic field is generated around the electromagnetic coil, and electromagnetic of another moving coil type electroacoustic transducer located in the electromagnetic field The coil is subjected to the electromagnetic field to generate an induced electromotive force, and the induced electromotive force is subjected to signal amplification, optimization, and analog-to-digital conversion to obtain an original file, thereby completing file transmission.

It should be understood that, in the embodiment of the present disclosure, if the signal to be transmitted is itself an analog signal, the transmitting side may not perform digital-to-analog conversion, and accordingly, the receiving side (ie, the acquisition side) may not perform analog-to-digital conversion.

In summary, in the technical solution provided by the embodiment of the present disclosure, the signal to be transmitted is converted into a signal suitable for playing using an electro-acoustic conversion device (for example, a signal in an ultrasonic frequency band), and then the signal is transmitted to a moving coil type electric sound. An electromagnetic coil of the converter, such that an electromagnetic field is generated around the electromagnetic coil, and an electromagnetic coil of another moving coil type electroacoustic transducer in the electromagnetic field is subjected to the electromagnetic field to generate an induced electromotive force, and then necessary for the induced electromotive force Processing to get the transmitted signal.

4 is a schematic structural diagram of an apparatus for implementing a file acquisition method and a file transfer method according to an embodiment of the present disclosure. As shown in FIG. 4, the device includes an uplink and downlink control unit, an uplink circuit, a downlink circuit, and a moving coil speaker (SPK). The working mode of the device includes a file transfer mode and a file acquisition mode, and the file transfer mode is correspondingly implemented by a downlink circuit, and the file acquisition mode is correspondingly implemented by an uplink circuit. A moving coil speaker (SPK) is used as a signal source when the device is in the file transfer mode, and a moving coil speaker (SPK) acts as a receiver when the device is in the file acquisition mode.

As an example, the uplink circuit may include a signal amplifier, a shaping module, a filtering module, an analog-to-digital converter, and an optimization module, and the downlink circuit may include an optimization module, a filtering module, a digital-to-analog converter, and a power amplifier. For example, the optimization module can optimize the noise reduction or the like of the transmitted or received signal.

As an example, an apparatus that implements a file acquisition method and a file transmission method according to an embodiment of the present disclosure may be a mobile terminal. As shown in FIG. 5, a mobile terminal that implements a file transfer method according to an embodiment of the present disclosure is close to a mobile terminal that implements a file acquisition method according to an embodiment of the present disclosure, and transmission of a file by an electromagnetic field can be realized.

When the mobile terminal on the transmitting side is in the file transfer mode, the electrical signal corresponding to the file to be transmitted is transmitted to the electromagnetic coil of the moving coil speaker, and according to the theory of Ampere's law, a synchronous electromagnetic field is generated around the electromagnetic coil, FIG. A schematic diagram showing an electromagnetic field generated around an electromagnetic coil of a moving coil type electroacoustic transducer (for example, a moving coil speaker) that implements a document transfer method according to an embodiment of the present disclosure is shown.

The mobile terminal on the receiving side of the file acquisition mode is close to the mobile terminal on the transmitting side, so that the electromagnetic coil of the moving coil speaker of the mobile terminal on the receiving side is in the electromagnetic field generated by the electromagnetic coil of the moving coil speaker of the mobile terminal on the transmitting side. Thus, according to the transformer principle, the electromagnetic coil of the moving coil speaker of the mobile terminal on the receiving side generates a corresponding sensing signal, and FIG. 7 shows a schematic diagram of the generating principle of the sensing signal in the file acquiring method according to an embodiment of the present disclosure. By appropriately processing the induced signal generated by the electromagnetic coil of the moving coil speaker of the mobile terminal on the receiving side, a signal (file) transmitted by the mobile terminal on the transmitting side can be obtained.

In some embodiments, a file acquisition method and a file transfer method according to an embodiment of the present disclosure are required to pay attention to at least one of the following aspects: electromagnetic interference in a region where a moving coil type electroacoustic transducer is located; moving coil type electricity The structure of the acoustic transducer; the shielding of the electromagnetic structure by the metal structure; the electromagnetic field is attenuated as the distance increases; the amplitude of the induced signal of the moving coil type electroacoustic transducer on the receiving side is very small; if the amplitude of the transmitted signal is to be increased, it may be increased The number of turns of the electromagnetic coil of the moving coil type electroacoustic transducer on the large transmission side; filtering and signal amplification of the signal to be transmitted to increase the signal-to-noise ratio (SNR) of the transmitted signal The signal to be transmitted or the sensing signal can be shaped; the Electromagnetic Compatibility (EMC) circuit can be set to reduce the influence of the complex electromagnetic environment on the sensing signal.

FIG. 8 shows a workflow diagram of a file transfer device in accordance with an embodiment of the present disclosure. Referring again to FIG. 4, the file transfer apparatus according to an embodiment of the present disclosure mainly relies on the down circuit shown in FIG.

As shown in FIG. 8, the workflow of the file transfer apparatus according to an embodiment of the present disclosure includes the following steps: S802, start; S804, the uplink and downlink control unit determines whether to perform an uplink sensing (receiving) operation or a downlink transmitting operation, in determining When performing the downlink transmission operation, proceeding to step S806, when determining to perform the uplink sensing operation, proceeding to step S810; S806, entering the downlink transmission operation mode, receiving the input of the downlink transmission data at S808; S810, entering the uplink sensing operation mode S812, the downlink circuit works; S814, the transmission is completed.

FIG. 9 illustrates a workflow diagram of a file acquisition apparatus in accordance with an embodiment of the present disclosure. Referring again to FIG. 4, the file transfer obtaining apparatus according to an embodiment of the present disclosure mainly relies on the uplink circuit shown in FIG.

As shown in FIG. 9, the workflow of the file obtaining apparatus according to an embodiment of the present disclosure includes the following steps: S902, start; S904, the uplink and downlink control unit determines whether to perform an uplink sensing (receiving) operation or a downlink transmitting operation, in determining When performing the downlink transmission operation, proceeding to step S906, when determining to perform the uplink sensing operation, proceeding to step S908; S906, entering the downlink transmission working mode; S908, entering the uplink sensing working mode, receiving the signal sensed at S910; S912, The uplink circuit amplifies the signal; S914, the uplink circuit shapes the signal; S916, the uplink circuit filters the signal; S918, determines whether the signal is directly played, and when it is determined that the signal is directly played, proceeds to step S920, where When it is determined that the signal is not directly played, proceeding to step S922; S920, directly playing the signal; S922, performing analog-to-digital conversion on the signal; S924, the uplink circuit optimizes the signal; and S926, determining whether to directly play the signal or perform recording, When it is determined that the signal is directly played, the process proceeds to step S930, where it is determined to be When the recording is performed, the process proceeds to step S928. When it is determined that the signal is not directly played and the recording is not performed, the process proceeds to step S932; S928, digital recording is performed; S930, the signal is directly played; and S932, the uplink sensing is completed.

In some embodiments, the file obtained by digitally recording in step S928 can be converted to another type of file.

As shown in FIG. 10, a moving coil type electroacoustic transducer (for example, a speaker) can be expanded in function, that is, an up circuit and a down circuit are added to implement a file acquiring device and a file transferring device according to an embodiment of the present disclosure. In addition, for example, an uplink and downlink codec unit may be separately configured, and the uplink and downlink codec unit may include an uplink decoding module and a downlink encoding module, and the uplink decoding module senses (receives) the function-expanded moving coil type electroacoustic converter. The signal is decoded, and the downlink encoding module encodes the signal to be transmitted.

It should be understood that those skilled in the art can adjust the order and arrangement of the modules and devices included in the uplink and downlink codec units and the uplink circuit and the downlink circuit as needed, which is not limited by the embodiments of the present disclosure.

As an example, in an embodiment of the present disclosure, in order not to affect the general function of an electroacoustic conversion device (for example, a speaker), a file (signal) may be transmitted in an ultrasonic frequency band. It should be understood that if the file to be transmitted is an audio file, the file transfer device (terminal) may be a terminal of a moving coil type electroacoustic converter having a function expanded as in the embodiment of the present disclosure, or may be only A terminal including a general moving coil type electroacoustic transducer can be used as long as it can play an audio file through a moving coil type electroacoustic transducer. However, the file acquiring device must be a moving coil type having an extended function as an embodiment of the present disclosure. The terminal of the electroacoustic transducer, ie the terminal must contain an upstream circuit as described above.

FIG. 11 shows a data flow diagram of transmitting an audio file in accordance with an embodiment of the present disclosure. As shown in FIG. 11, since the audio file is a file type suitable for the electroacoustic converter to play, when the file is transmitted, the downlink encoding module can be bypassed at the file transfer device. In this case, the file acquisition device may also bypass the uplink decoding module.

FIG. 12 shows a flow chart of transmitting an audio file in accordance with an embodiment of the present disclosure. As shown in FIG. 12, the step of transmitting an audio file according to an embodiment of the present disclosure includes: S1202, starting transmission of an audio file; S1204, downlink circuit operation of the file transfer device; S1206, moving coil type electro-acoustic conversion of the file transfer device The audio file is played by the ultrasonic frequency band; S1208, the moving coil type electroacoustic converter of the file acquiring device performs electromagnetic induction; S1210, the uplink circuit of the file obtaining device works; S1212, obtains and stores the corresponding audio file.

FIG. 13 shows a schematic diagram of a data flow for transmitting a non-audio file in accordance with an embodiment of the present disclosure. FIG. 14 illustrates a flow chart for transmitting a non-audio file in accordance with an embodiment of the present disclosure. As shown in FIG. 14, the step of transmitting a non-audio file according to an embodiment of the present disclosure includes: S1402, starting transmission of a non-audio file; S1404, a downlink encoding module of the file transfer device encoding a non-audio file to obtain a suitable playback. Audio file; S1406, the moving coil type electroacoustic converter of the file transfer device plays the audio file in the ultrasonic frequency band; S1408, the moving coil type electroacoustic converter of the file acquiring device performs electromagnetic induction; S1410, the upstream decoding module pair of the file obtaining device The received file is decoded; S1412, the corresponding non-audio file is obtained and stored.

It should be understood that various processes (eg, encoding, decoding, modulation, demodulation, digital-to-analog conversion, analog-to-digital conversion, etc.) of signals (files) to be transmitted and received signals (files) in embodiments of the present disclosure, Filtering, shaping, magnification, etc.) are merely examples, and the scope of the present disclosure is not limited thereto.

As an example, as shown in FIGS. 15 and 16, a file transfer apparatus according to an embodiment of the present disclosure may perform source encoding and channel encoding, and accordingly, a file acquiring apparatus according to an embodiment of the present disclosure may perform channel decoding and signaling. Source decoding.

The file transfer device and the file acquisition device of the embodiments of the present disclosure have a wide range of applications and can be applied to various types of terminal products. Moreover, the file transfer method and the file acquisition method of the embodiments of the present disclosure have the following advantages: the appropriate function expansion of the existing dynamic coil type electroacoustic converter of the terminal product can meet the demand, the cost is low, and the space of the terminal product is occupied. Smaller, does not affect the convenience of the end product; does not require complex operations such as key check and identity authentication to enhance the user experience; can optimize the processing of the transmitted or received signals; can achieve audio files and non-audio The transmission of files provides users with a new way to transfer files.

For example, the technical solutions provided by the embodiments of the present disclosure may be used for asynchronous signal transmission, synchronous or asynchronous recording, synchronous external release, and the like.

It should be understood that the technical solutions provided by the embodiments of the present disclosure may be implemented by means of software, hardware or a combination thereof, for example, by software combined with general hardware, such as a processor, an integrated circuit, or the like. . Therefore, the technical solution of the embodiments of the present disclosure may be provided in the form of a software product, which may be stored in a storage medium (such as a ROM/RAM, a magnetic disk, an optical disk), including a plurality of instructions, and an end product (for example, The processor of the mobile phone, computer, server, or network device, etc., runs these instructions to perform the technical solutions provided by the embodiments of the present disclosure.

FIG. 17 is a structural block diagram of a file acquiring apparatus according to an embodiment of the present disclosure. As shown in FIG. 17, the file obtaining apparatus includes a first obtaining module 172 and a second acquiring module 174, and the first acquiring module 172 is configured to receive magnetic force passing current through electromagnetic induction of a coil of the moving coil type electroacoustic transducer. The second transmission module 174 is connected to the first acquisition module 172 for performing a restoration process on the received analog signal to obtain an original file corresponding to the received analog signal.

In some embodiments, the second obtaining module 174 includes: a first processing unit configured to perform demodulation processing on the received analog signal; and a second processing unit configured to perform digital sampling processing on the signal obtained by the demodulation processing; And an obtaining unit, configured to perform decoding processing on the signal obtained by the digitized sampling process to obtain an original file.

In some embodiments, the file obtaining apparatus further includes an optimization processing module, configured to perform at least one of an amplification process, a shaping process, and a filtering process on the received analog signal before performing the restoration process on the received analog signal. One.

FIG. 18 is a block diagram showing the structure of a file transfer apparatus according to an embodiment of the present disclosure. As shown in FIG. 18, the file transfer apparatus includes a determination module 182 for determining an analog signal to be transmitted, and a transfer module 184 coupled to the determination module 182 for passing the moving coil type electroacoustic transducer. The magnetic effect of the current of the electromagnetic coil transmits the analog signal.

In some embodiments, the determining module 182 includes: a determining unit configured to determine a type of the original file to be transmitted; and a converting unit configured to convert the original file into an analog signal to be transmitted according to a type of the original file.

In some embodiments, the conversion unit in the determination module 182 includes: an encoding subunit for encoding the original file to convert the original file into an audio file when determining that the type of the original file is a non-audio file; a unit for converting an encoded audio file into an analog signal to be transmitted.

In some embodiments, the file transfer apparatus further includes an optimization processing module configured to perform at least one of an amplification process, a shaping process, and a filtering process on the analog signal to be transmitted before transmitting the analog signal.

Embodiments of the present disclosure also provide a file transfer system including a file transfer device and a file acquisition device according to an embodiment of the present disclosure.

Embodiments of the present disclosure also provide a storage medium storing a computer program that executes a file transfer method and/or a file acquisition method of an embodiment of the present disclosure when executed by a computer.

In the embodiment of the present disclosure, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as discs and discs.

Embodiments of the present disclosure also provide a processor that runs a program to implement a file transfer method and/or a file acquisition method of an embodiment of the present disclosure.

In the technical solution provided by the embodiments of the present disclosure, the dynamic coil type electroacoustic transducer that performs the function expansion can realize the general electroacoustic conversion, and can transmit the file through the magnetic effect of the current and the electromagnetic induction, for example, in the ultrasonic frequency band. With the necessary uplink and downlink circuits, audio files can be transmitted in real time or non-audio files can be transmitted asynchronously. Therefore, the present disclosure provides a completely new information transmission method, and has low transmission power consumption, strong practicability and technical achievability, and in particular, an irreplaceable advantage in application simplicity.

It should be understood that the embodiment of the present disclosure has been described with a moving coil speaker as an example of a moving coil type electroacoustic transducer, but the present disclosure is not limited thereto, and for example, the moving coil type electroacoustic transducer may further include a moving coil. Telephone receiver, etc. In addition, in the embodiment of the present disclosure, the transmission analog signal is taken as an example. However, the present disclosure is not limited thereto, and the technical solution of the present disclosure may transmit a digital signal, for example, in conjunction with appropriate processing.

It should be noted that the terms "module" and "unit" as used in the present disclosure may be software, hardware, or a combination thereof that implements a predetermined function, such as a processor, an integrated circuit, or the like.

It should be understood by those skilled in the art that the modules, units, or steps in the embodiments of the present disclosure may be implemented on a single hardware, or may be distributed on a network composed of multiple hardwares, which may be implemented by a computer. The executable program code is implemented such that the corresponding program code can be stored in memory and run by the computer.

In some cases, various modules, units, or steps in the embodiments of the present disclosure may be implemented/executed in an order different from that shown or described in the present disclosure, may be implemented by a plurality of electronic circuits, or may be A single integrated circuit is implemented.

Thus, the present disclosure is not limited to any specific form of software, hardware or a combination thereof.

The embodiments of the present disclosure are only examples, and are not intended to limit the scope of the present disclosure, and various modifications and equivalents may be made to the embodiments of the present disclosure without departing from the scope of the present disclosure. Such modifications, equivalent substitutions and variations are intended to fall within the scope of the present disclosure.

Claims

A file acquisition method includes:

Electromagnetic induction through a solenoid of a moving coil type electroacoustic transducer to receive a signal transmitted by a magnetic effect through a current;

The original file corresponding to the signal is obtained by performing a restoration process on the received signal.
The method of claim 1, wherein the obtaining the original file corresponding to the signal by performing a restoration process on the received signal comprises:

Demodulating the signal;

Digitally sampling the signal obtained by the demodulation process;

The signal obtained by the digitized sampling process is subjected to decoding processing to acquire the original file.
The method of claim 1 further comprising:

At least one of the amplification processing, the shaping processing, and the filtering processing is performed on the received signal before the received signal is subjected to the restoration processing.
A file transfer method includes:

Determining the signal to be transmitted;

The signal is transmitted by the magnetic effect of the current of the electromagnetic coil of the moving coil type electroacoustic transducer.
The method of claim 4 wherein determining the signal to be transmitted comprises:

Determining the type of original file to be transferred;

The original file is converted into a signal to be transmitted according to the type of the original file.
The method of claim 5, wherein converting the original file into a signal to be transmitted according to a type of the original file comprises:

When determining that the type of the original file is a non-audio file, encoding the original file to convert the original file into an audio file;

The encoded audio file is converted into a signal to be transmitted.
The method of claim 4 further comprising:

The signal is subjected to at least one of an amplification process, a shaping process, and a filtering process before transmitting the signal.
A file acquisition device comprising:

a first acquisition module configured to perform electromagnetic induction through a solenoid of the moving coil type electroacoustic transducer to receive a signal transmitted by a magnetic effect of the current;

The second obtaining module is configured to obtain an original file corresponding to the signal by performing a restoration process on the received signal.
The apparatus of claim 8, wherein the first obtaining module comprises:

a first processing unit configured to perform demodulation processing on the received signal;

a second processing unit configured to digitally sample the signal obtained by the demodulation process;

And an acquiring unit configured to perform decoding processing on the signal obtained by the digitized sampling process to obtain the original file.
A file transfer device comprising:

Determining a module configured to determine a signal to be transmitted;

A transfer module configured to transmit the signal by a magnetic effect of a current of a solenoid of the moving coil type electroacoustic transducer.
The apparatus of claim 10, wherein the determining module comprises:

Determining a unit configured to determine a type of the original file to be transmitted;

And a conversion unit configured to convert the original file into a signal to be transmitted according to a type of the original file.
The apparatus of claim 11 wherein said converting unit comprises:

An encoding subunit configured to, when determining that the type of the original file is a non-audio file, encoding the original file to convert the original file into an audio file;

A conversion subunit configured to convert the encoded audio file into a signal to be transmitted.
A file transfer system including a file transfer device and a file acquisition device, wherein

The file transfer device is configured to: determine a signal to be transmitted; and transmit the signal by a magnetic effect of a current of a solenoid of the moving coil type electroacoustic transducer,

The file obtaining device is configured to perform the following operations:

Electromagnetic induction by the electromagnetic coil of the moving coil type electroacoustic transducer to receive a signal transmitted by the file transfer device; and by performing a restoration process on the received signal to obtain an original file corresponding to the signal.
The system according to claim 13, wherein said file obtaining means obtains an original file corresponding to said signal by performing a restoration process on said received signal comprises:

The file obtaining means performs demodulation processing on the received signal;

The file obtaining means digitizes a signal obtained by the demodulation process; and

The file obtaining means performs a decoding process on the signal obtained by the digitized sampling process to acquire the original file.
The system of claim 13 wherein said file transfer means determines that the signal to be transmitted comprises:

The file transfer device determines the type of the original file to be transferred;

The file transfer device converts the original file into a signal to be transmitted according to the type of the original file.
A storage medium storing a program, the program running to perform the method according to any one of claims 1 to 7.