CN114172897B - Method and system for transmitting files of PC (personal computer) end and Android end - Google Patents
Method and system for transmitting files of PC (personal computer) end and Android end Download PDFInfo
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- CN114172897B CN114172897B CN202111501344.7A CN202111501344A CN114172897B CN 114172897 B CN114172897 B CN 114172897B CN 202111501344 A CN202111501344 A CN 202111501344A CN 114172897 B CN114172897 B CN 114172897B
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/64—Details of telephonic subscriber devices file transfer between terminals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention provides a method and a system for transmitting files at a PC end and an Android end, and belongs to the field of data communication. The method for transmitting the files of the PC end and the Android end comprises the following steps: establishing connection between a PC end and an Android end; generating a request message according to the operation of a user on the PC end, packaging and sending the request message to the Android end; after the Android terminal receives the solution Bao Douqu; and finally, the Android terminal performs corresponding operation according to the read content, generates a response message and returns the response message to the PC terminal. The invention also discloses a system for transmitting the files of the PC end and the Android end, which comprises the following steps: the system comprises a connection establishment module, a data packing and sending module, a data receiving and unpacking module and a response module. The file transmission method and the file transmission system provided by the invention are simple to operate, and the interaction times are reduced, so that the file transmission efficiency is improved, and the problem of low speed of transmitting a large number of small files between the PC end and the Android end is solved.
Description
Technical Field
The invention relates to a method and a system for transmitting files at a PC end and an Android end, and belongs to the field of data communication.
Background
Today, smartphones are basically already in the part of a person. According to data statistics, the operation systems of the smart phones used by the netizens in 2021 are basically divided into an Android system, an IOS system, a Blackberry system, a Windows system and a Symbian system, and the usage ratios of the netizens are 89.6%, 33.1%, 5.3%, 8.1%, 2.3% and 1.7% respectively. It follows that Android phones still occupy the main part of smartphones.
With the development of various software such as short videos and hand games, mobile phone storage files become more and more, and the transmission efficiency of a large number of small files becomes a point of attention. Currently, android mobile phones mostly transmit files based on MTP protocol. The sdcard of the Android mobile phone is mounted on a PC in an MTP mode, and a virtual file system is built for the PC through an MTP protocol method. When the PC operates files in the file system, a request is sent to the intelligent mobile phone through a standard MTP protocol, and the speed of transferring a large number of small files is very low. The MTP protocol-based method has the advantages that the Android mobile phone only builds a virtual file system to the PC end to manage mobile phone files, and the PC initiates a request to the mobile phone every time the mobile phone files are operated; the MTP can also judge whether the media file copied by the PC is supported by the target mobile phone, the MTP supports the protection of the digital license, the protected file can not be transmitted, and the method has certain security.
In summary, there is a certain demand for managing Android mobile phone files at PC end at present, but the transmission rate of a large number of small files is slow in the prior art. With the increase of mobile phone memory, the number of stored files of the mobile phone is gradually increased, and the requirement of people on efficient transmission of mobile phone files cannot be met by adopting the traditional MTP protocol mode transmission, so that the problem that a large number of small files are slow in transmission rate is urgent to be solved.
Disclosure of Invention
The invention provides a method and a system for transmitting files at a PC end and an Android end, which improve the transmission efficiency compared with the traditional method based on MTP protocol.
The invention discloses a file transmission method for a PC end and an Android end, which comprises the following steps:
step one: firstly connecting a PC and an Android mobile phone by using a USB, then locally starting a ServerSocket by the PC end, binding a local port, mapping the port of the PC end to the Android end by an adb reverse, then starting an Android end APP, transmitting the mapped port as an attached parameter to the mobile phone APP, finally starting a foreground Android Service by the Android end, starting a Socket in the Service, and connecting the port to the ServerSocket of the PC end by the Socket after the port is successfully started;
step two: generating a corresponding request message according to the operation of a user on a PC (personal computer) end on a file, compressing a text field in a GZIP (global position system) mode, calculating the load length of the text field and the number of bytes occupied by the load length of the text field, judging whether the content of the multimedia file exists, packaging and transmitting the existing field if the content of the multimedia file does not exist, otherwise, calculating the load length of the multimedia content and the number of bytes occupied by the load length of the multimedia content, and packaging and transmitting all the content;
step three: the Android terminal receives a message sent by the PC terminal, reads the high four bits of the 4 th byte, obtains the number of bytes occupied by the text field load length, and marks the number as Y1; reading the lower four bits of the 4 th byte to obtain the number of bytes occupied by the length of the multimedia load, and recording as Y2; judging whether the value of Y2 is 0, if the value of Y2 is 0, indicating that no multimedia content exists, only reading a text field, starting from the 5 th byte, reading Y1 bytes backwards, marking the load length of the text field as Y1', starting from the (Y1+5) th byte, reading Y1' bytes backwards, and decompressing to obtain an original text field; if the value of Y2 is not 0, the content is indicated to contain multimedia content, not only the text field is required to be read, but also the multimedia is required to be read, Y1 bytes are read backwards from the 5 th byte, the load length of the text field is marked as Y1', Y2 bytes are read backwards from the (Y1+5) th byte, the load length of the multimedia is marked as Y2', Y1' bytes are read backwards from the (Y1+Y 2+5) th byte, the compressed content of the text field is obtained, then decompression is carried out, the original text field is obtained, Y2' bytes are read backwards from the (Y1+Y 2+Y1' +5) th byte, and the multimedia content is obtained;
step four: and D, according to the message content read in the step three, the Android terminal carries out corresponding operation, generates a response message and returns the response message to the PC terminal.
The invention also discloses a system for transmitting the files of the PC end and the Android end, which comprises the following steps:
the connection establishment module is used for establishing connection between the PC end and the Android end;
the data packaging and transmitting module is used for packaging and transmitting the data according to a certain format;
the data receiving and unpacking module is used for receiving the data packet sent by the PC end and carrying out unpacking and reading on the data packet;
and the response module is used for the Android terminal to operate according to the read data and return a response message.
The package content of the data package and transmission module comprises:
a version number of the protocol, stored in byte 3;
the number of bytes occupied by the text field load length is stored in the upper four bits of the 4 th byte;
the number of bytes occupied by the length of the multimedia load is stored in the lower four bits of the 4 th byte;
a text field payload length, stored starting from byte 5;
if the multimedia file content exists, then the bytes after the text field load length are stored, if not, the bytes are not stored;
the text field compressed by the GZIP is stored after the multimedia load length if the content of the multimedia file exists, and is stored after the text field load length if the content of the multimedia file does not exist;
the multimedia file is then stored after the text field.
The text field of the request message comprises:
an id field, which identifies a request message and has uniqueness;
cmd field for identifying purpose of request and describing operation needed by Android terminal;
a reply field, identifying that a message is a request message, and the value is 0;
and a data field for transmitting data of the request message, and other data helpful for operation.
The text field of the response message comprises:
the id field is used for identifying the corresponding response message of the request sent by the PC end and has uniqueness;
a cmd field describing the operation that has been completed;
a reply field, which identifies that a message is a request message, and the value is 1;
code field, which marks the result of the operation performed by the Android terminal, and different codes correspond to different operation results;
a message field describing the result of Android terminal operation;
and a data field, which is used for carrying some information during operation in response to the data of the message.
Drawings
Fig. 1 is a flowchart of a method and a system for transmitting files at a PC end and an Android end.
Detailed Description
For the purpose of making the technical solution and implementation effect of the present invention more intuitive, the process of the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be apparent that the embodiments described are only some, but not all, embodiments of the present invention and the following examples are intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example 1
As shown in the accompanying drawings, the embodiment discloses a method for transmitting files of a PC end and an Android end, which comprises the following steps:
step one: firstly connecting a PC end and an Android mobile phone end by using a USB data line, then starting a Serversocket locally by the PC end, binding a local port, mapping the port of the PC end to the Android end by an adb reverse, starting an Android end APP, transmitting the mapped port as an attached parameter to the mobile phone APP, starting a foreground Android Service by the Android end, starting a Socket in the Service, and connecting the port to the Serversocket of the PC end by the Socket after the port is successfully started;
step two: the user selects copy operation, copies 1000 files under the catalog "sdcard/Android/1/test" to "sdcard/Android/1/to", operates on a PC end, generates request messages { "id": "xxxx", "cmd": "copy_file", "reply": "0", data { "from": "sdcard/Android/1/test", "to": "sdcard/Android/1/to" }, compresses a text field in a GZIP mode, calculates the text field load length and the number of bytes occupied by the load length, judges that no multimedia file exists, and the text field load length occupies the number of bytes, the text field load length and the text field content package are sent;
step three: the Android terminal receives a message sent by the PC terminal, reads the high four bits of the 4 th byte, obtains the number of bytes occupied by the load length of the text field, and marks the number as Y1; reading the lower four bits of the 4 th byte to obtain the number of bytes occupied by the load length of the multimedia, and recording as Y2; judging that the value of Y2 is 0, starting from the 5 th byte, reading Y1 bytes backwards, marking the load length of the text field as Y1', starting from the (Y1+5) th byte, reading Y1' bytes backwards, compressing the text field, and decompressing to obtain the original text field;
step four: according to the read content, the Android terminal carries out corresponding operation to generate a response message, and if the copying is successful, the text field content in the response message is generated as follows: { "id": "xxxxxx", "cmd": "get_file_list", "code": 0"," reply ": 1", "message": "copy successful", data { "name": "test. Txt", "size":7987655 "," last_modification ": 103243243", "file_type":1}, if copy fails, the text field content in the response message is generated as { "id": "xxxxxx", "cmd": "get_file_list", "code": -1 "," message ": operation failure" }
Example 2
As shown in the accompanying drawings, a file transmission system for a PC and an Android terminal in this embodiment includes: the system comprises a connection establishment module, a data packing and sending module, a data receiving and unpacking module and a response module. The connection establishment module is used for establishing connection between the PC end and the Android end. And the data packaging and sending module is used for packaging the data and sending the data to the Android terminal after generating the data according to the user operation. The data receiving and unpacking module is used for the Android terminal to disassemble and read the data packets after receiving the data packets sent by the PC terminal. The response module is used for the Android terminal to generate a response after reading the data and generate a response message to be sent to the PC terminal.
When the embodiment 1 and the embodiment 2 are sent at the PC side, firstly, a text field is generated according to the operation, the load length of the text field and the number of bytes occupied by the load length are calculated after the text field is compressed, and if a multimedia file exists, the load length of the multimedia and the number of bytes occupied by the load length are calculated. During packaging, the number of bytes occupied by the text field load length is stored in the upper four bits of the 4 th byte, the number of bytes occupied by the multimedia load length is stored in the lower four bits of the 4 th byte, and the next fields sequentially store the text field length, the multimedia length, the text field content and the multimedia content respectively. If the multimedia file does not exist, the storage is not performed. When the Android terminal receives, reading the upper four bits of the 4 th byte can know that the length of a text field needs to be obtained by reading a plurality of bits backwards from the 5 th field, determining to read a plurality of bytes backwards according to the length of the obtained text field to obtain the whole text content, and similarly, copying 1000 small files of 1KB from one directory to another directory under an MTP mode to obtain the multimedia content requires 69s, wherein the method only performs one interaction in the transmitting and receiving process, and copying 1000 small files of 1KB from one directory to another directory requires only 7 s.
Claims (4)
1. The PC end and Android end file transmission method is characterized by comprising the following steps:
step one: firstly connecting a PC and an Android mobile phone by using a USB, then locally starting a ServerSocket by the PC end, binding a local port, mapping the port of the PC end to the Android end by an adb reverse, then starting an Android end APP, transmitting the mapped port as an attached parameter to the mobile phone APP, finally starting a foreground Android Service by the Android end, starting a Socket in the Service, and connecting the port to the ServerSocket of the PC end by the Socket after the port is successfully started;
step two: generating a corresponding request message according to the operation of a user on a PC (personal computer) end on a file, compressing a text field in a GZIP (global position system) mode, calculating the load length of the text field and the number of bytes occupied by the load length of the text field, judging whether the content of the multimedia file exists, packaging and transmitting the existing field if the content of the multimedia file does not exist, otherwise, calculating the load length of the multimedia content and the number of bytes occupied by the load length of the multimedia content, and packaging and transmitting all the content;
step three: the Android terminal receives a message sent by the PC terminal, reads the high four bits of the 4 th byte, and records the number of bytes occupied by the load length of the obtained text field as Y1; reading the lower four bits of the 4 th byte to obtain the number of bytes occupied by the length of the multimedia load, and recording as Y2; judging whether the value of Y2 is 0, if the value of Y2 is 0, indicating that no multimedia content exists, only reading a text field, starting from the 5 th byte, reading Y1 bytes backwards, marking the load length of the text field as Y1', starting from the (Y1+5) th byte, reading Y1' bytes backwards, and decompressing to obtain an original text field; if the value of Y2 is not 0, the content is indicated to contain multimedia content, not only the text field is required to be read, but also the multimedia is required to be read, Y1 bytes are read backwards from the 5 th byte, the load length of the text field is marked as Y1', Y2 bytes are read backwards from the (Y1+5) th byte, the load length of the multimedia is marked as Y2', Y1' bytes are read backwards from the (Y1+Y 2+5) th byte, the compressed content of the text field is obtained, then decompression is carried out, the original text field is obtained, Y2' bytes are read backwards from the (Y1+Y 2+Y1' +5) th byte, and the multimedia content is obtained;
step four: and D, according to the message content read in the step three, the Android terminal carries out corresponding operation, generates a response message and returns the response message to the PC terminal.
2. The file transmission system of the PC end and the Android end is characterized by comprising the following modules:
the connection establishment module is used for establishing connection between the PC end and the Android end;
the data packaging and sending module is used for packaging and sending data according to a certain format after a request message is generated according to the operation of a user on a PC end, wherein the specific content of the packaged data is as follows:
a version number of the protocol, stored in byte 3;
the number of bytes occupied by the text field load length is stored in the upper four bits of the 4 th byte;
the number of bytes occupied by the length of the multimedia load is stored in the lower four bits of the 4 th byte;
a text field payload length, stored starting from byte 5;
if the multimedia file content exists, then the bytes after the text field load length are stored, if not, the bytes are not stored;
the text field compressed by the GZIP is stored after the multimedia load length if the content of the multimedia file exists, and is stored after the text field load length if the content of the multimedia file does not exist;
a multimedia file, which is then stored after the text field;
the data receiving and unpacking module is used for receiving the file and disassembling and reading the file;
and the response module is used for the Android terminal to operate according to the read data and return a response message.
3. The file transfer system of claim 2, wherein the request message text field in the data packaging and sending module comprises:
an id field, which identifies a request message and has uniqueness;
cmd field for identifying purpose of request and describing operation needed by Android terminal;
a reply field, identifying that a message is a request message, and the value is 0;
and a data field for transmitting data of the request message, and other data helpful for operation.
4. The file transfer system of claim 2, wherein the response message text field in the response module comprises:
the id field is used for identifying the corresponding response message of the request sent by the PC end and has uniqueness;
a cmd field describing the operation that has been completed;
a reply field, which identifies that a message is a request message, and the value is 1;
code field, which marks the result of the operation performed by the Android terminal, and different codes correspond to different operation results;
a message field describing the result of Android terminal operation;
and a data field, which is used for carrying some information during operation in response to the data of the message.
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| CN114172897B true CN114172897B (en) | 2023-08-25 |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6889256B1 (en) * | 1999-06-11 | 2005-05-03 | Microsoft Corporation | System and method for converting and reconverting between file system requests and access requests of a remote transfer protocol |
| KR20060081873A (en) * | 2005-01-10 | 2006-07-13 | 주식회사 팬택앤큐리텔 | Method for transmitting image of terminal |
| CN101520803A (en) * | 2009-03-18 | 2009-09-02 | 宇龙计算机通信科技(深圳)有限公司 | File sharing system and method between PC terminal and mobile terminal |
| CN102662924A (en) * | 2012-03-14 | 2012-09-12 | 福州瑞芯微电子有限公司 | Method for solving incompatibility problem in character set transmission from PC to Android system based on hybrid coding |
| CN102981990A (en) * | 2012-11-09 | 2013-03-20 | 青岛海信移动通信技术股份有限公司 | Data transmission method and device of terminal equipment with Androild platform |
| CN103929447A (en) * | 2013-01-11 | 2014-07-16 | 中国科学院声学研究所 | Method for analyzing HTTP chunked code data |
| WO2014161317A1 (en) * | 2013-09-12 | 2014-10-09 | 中兴通讯股份有限公司 | Data transmission method, device and terminal |
| CN105022644A (en) * | 2014-04-29 | 2015-11-04 | 宇龙计算机通信科技(深圳)有限公司 | Terminal, system updating method and system updating file delivering method and apparatus |
| CN107872482A (en) * | 2016-09-27 | 2018-04-03 | 中兴通讯股份有限公司 | The method and device of transmitting file on a kind of mobile terminal |
| CN109271266A (en) * | 2018-10-09 | 2019-01-25 | Oppo广东移动通信有限公司 | Document transmission method, device and terminal device |
| CN109298956A (en) * | 2018-10-09 | 2019-02-01 | Oppo广东移动通信有限公司 | Document transmission method, device and terminal device |
| CN109614369A (en) * | 2018-11-15 | 2019-04-12 | 中电科仪器仪表有限公司 | A kind of document transmission method of test equipment |
| CN109639768A (en) * | 2018-11-20 | 2019-04-16 | 北京凝思科技有限公司 | A kind of distribution blocked file transmission method and system |
| CN111488620A (en) * | 2020-04-17 | 2020-08-04 | 上海闻泰电子科技有限公司 | File processing method and device, mobile terminal and storage medium |
| CN112468454A (en) * | 2020-11-11 | 2021-03-09 | 许继集团有限公司 | Remote file management system and remote file management method thereof |
| CN113472878A (en) * | 2021-06-29 | 2021-10-01 | 烽火通信科技股份有限公司 | Method and device for realizing file dragging transmission in VNC by using browser plug-in |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7664872B2 (en) * | 2005-01-05 | 2010-02-16 | Divx, Inc. | Media transfer protocol |
| KR101242040B1 (en) * | 2006-06-26 | 2013-03-12 | 삼성전자주식회사 | Method and apparatus for automatically creating a playlist in a portable device |
| US8738580B2 (en) * | 2008-07-23 | 2014-05-27 | Nvidia Corporation | Copying files from one directory to another |
| CN102420822A (en) * | 2011-11-29 | 2012-04-18 | 中兴通讯股份有限公司 | Network file transmission method and system |
-
2021
- 2021-12-09 CN CN202111501344.7A patent/CN114172897B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6889256B1 (en) * | 1999-06-11 | 2005-05-03 | Microsoft Corporation | System and method for converting and reconverting between file system requests and access requests of a remote transfer protocol |
| KR20060081873A (en) * | 2005-01-10 | 2006-07-13 | 주식회사 팬택앤큐리텔 | Method for transmitting image of terminal |
| CN101520803A (en) * | 2009-03-18 | 2009-09-02 | 宇龙计算机通信科技(深圳)有限公司 | File sharing system and method between PC terminal and mobile terminal |
| CN102662924A (en) * | 2012-03-14 | 2012-09-12 | 福州瑞芯微电子有限公司 | Method for solving incompatibility problem in character set transmission from PC to Android system based on hybrid coding |
| CN102981990A (en) * | 2012-11-09 | 2013-03-20 | 青岛海信移动通信技术股份有限公司 | Data transmission method and device of terminal equipment with Androild platform |
| CN103929447A (en) * | 2013-01-11 | 2014-07-16 | 中国科学院声学研究所 | Method for analyzing HTTP chunked code data |
| WO2014161317A1 (en) * | 2013-09-12 | 2014-10-09 | 中兴通讯股份有限公司 | Data transmission method, device and terminal |
| CN105022644A (en) * | 2014-04-29 | 2015-11-04 | 宇龙计算机通信科技(深圳)有限公司 | Terminal, system updating method and system updating file delivering method and apparatus |
| CN107872482A (en) * | 2016-09-27 | 2018-04-03 | 中兴通讯股份有限公司 | The method and device of transmitting file on a kind of mobile terminal |
| CN109271266A (en) * | 2018-10-09 | 2019-01-25 | Oppo广东移动通信有限公司 | Document transmission method, device and terminal device |
| CN109298956A (en) * | 2018-10-09 | 2019-02-01 | Oppo广东移动通信有限公司 | Document transmission method, device and terminal device |
| CN109614369A (en) * | 2018-11-15 | 2019-04-12 | 中电科仪器仪表有限公司 | A kind of document transmission method of test equipment |
| CN109639768A (en) * | 2018-11-20 | 2019-04-16 | 北京凝思科技有限公司 | A kind of distribution blocked file transmission method and system |
| CN111488620A (en) * | 2020-04-17 | 2020-08-04 | 上海闻泰电子科技有限公司 | File processing method and device, mobile terminal and storage medium |
| CN112468454A (en) * | 2020-11-11 | 2021-03-09 | 许继集团有限公司 | Remote file management system and remote file management method thereof |
| CN113472878A (en) * | 2021-06-29 | 2021-10-01 | 烽火通信科技股份有限公司 | Method and device for realizing file dragging transmission in VNC by using browser plug-in |
Non-Patent Citations (1)
| Title |
|---|
| 《Deniable Storage Encryption for Mobile Devices》;Adm Skillen;IEEE;第11卷(第3期);第224-237页 * |
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