CN101056252A - Transmission method of compression file - Google Patents
Transmission method of compression file Download PDFInfo
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- CN101056252A CN101056252A CNA2007101084150A CN200710108415A CN101056252A CN 101056252 A CN101056252 A CN 101056252A CN A2007101084150 A CNA2007101084150 A CN A2007101084150A CN 200710108415 A CN200710108415 A CN 200710108415A CN 101056252 A CN101056252 A CN 101056252A
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- compressed file
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Abstract
The invention discloses a spreading method of the compressed file, including the following steps: (1) generate the original file and compress the description attribute of the files, the description attributes include the compression mode and identifier of the sending data block in the sending file; the description attributes are stored in the description table of the transmission attributes; (2) transmit the compression file and transmission attribute description table as the service element of the data broadcast service and the receiver can receive them; (3) receive the compression file and the transmission attribute description table at the receiver, decompress the compressed file to get the original file according to the compression mode of the compression file and transmission data block in the transmitted file, store them into the local location for access of the receiver. The method of the invention solves the problem that the existing technology can not broadcast the compressed file (especially the volume compression file compressed from multiple files) in unidirectional mode and recovers it at the receiver to access the original file.
Description
Technical field
The present invention relates to data broadcasting, data communication field, relate in particular to a kind of transmission method of compressed file.
Background technology
In fields such as data communication and data broadcastings, implement unidirectional file with broadcasting and multicast more and more and transmit, as IETF (the Internet engineering work group's) FLUTE (unidirectional file transmission) transportation protocol.In unidirectional file transfer, often need the file various attributes relevant with transmitting session are described, and these descriptors and file itself are blazed abroad together, receive for receiving terminal and handle.
More existing unidirectional file tranmission techniques such as FLUTE agreements can be used for the transmission of ordinary file.But for the transmission of compressed file, scheme is very simple, and the original document that visit in the compressed file is relatively more difficult.As in the FLUTE agreement, compressed file is described with a descriptor.The compressed file that single file forms, if directly visit original document, being used for the relevant description field of locating file must be consistent with original document, must be of the same name with original document as compressed file; Compressed file for a plurality of files formation, perhaps be used for the compressed file that the inconsistent single file of the relevant description field of locating file and original document forms, be compressed file to be used as a file transmit, and, just can not directly visit original document like this because in FDT, lack the descriptor of original document.
Prior art can't provide a kind of compressed file that forms for a plurality of files, perhaps be used for the compressed file that the inconsistent single file of the relevant description field of locating file and original document forms, can realize one way propagation and recover the method for visit original document wherein at receiving terminal.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of transmission method of compressed file, can't realize in the prior art recovering the problem of visit original document wherein to solve with the bundling compressed file one way propagation of the particularly a plurality of File Compress formation of compressed file and at receiving terminal.
In order to address the above problem, the invention provides a kind of transmission method of compressed file, described method is utilized recording document to transmit the transmission attribute description table of attribute and is propagated compressed file, it is characterized in that, may further comprise the steps:
(1) generate original document and compressed file description attribute separately, described description attribute comprises compress mode and to the sign of the transmission block of transfer files content; Described description attribute kit is contained in file transmits in the attribute, be put in the described transmission attribute description table;
(2) with described compressed file and described transmission attribute description table, send as the business element of data broadcast service, receive for the recipient;
(3) receive described compressed file and described transmission attribute description table at receiving terminal, sign according to described compressed file, described compress mode and described transmission block to the transfer files content, from described compressed file, solve original document, be stored in this locality, for the receiving terminal visit.
The transmission method of compressed file of the present invention, wherein, in step (1), described compress mode is represented with content coding field, the data block of described transfer files content transmission object mark for marking.
The transmission method of compressed file of the present invention, wherein, the sign of actual used transmission block when the transmission object of described compressed file sign is set to transmit described compressed file; The transmission object sign of described original document is set to the transmission object sign of the first bundling compressed file, and points to the first bundling compressed file with another attribute field, sets up getting in touch between original document and compressed file.
The transmission method of compressed file of the present invention, wherein, described another attribute field is the container file field, the title of the described first bundling compressed file of record in described container file field.
The transmission method of compressed file of the present invention, wherein, in step (2), described compressed file and described transmission attribute description table carry with transmission block, blaze abroad, and receive for receiving terminal and handle.
The transmission method of compressed file of the present invention, wherein, step (3) comprising:
(31) judge whether original document has received and be stored in this locality; If go to step (36); Otherwise, go to step (32);
(32) inquire about the clauses and subclauses of described original document correspondence by described transmission attribute description table, find corresponding transmission object sign and content encoding field, according to described transmission object sign reception transmission block; Learn the compress mode of described original document by described content coding field, and learn the first bundling compressed file of described original document correspondence by described another attribute field;
(33) after receiving terminal received data according to described transmission object sign, the treated first bundling compressed file that obtains by the described first bundling compressed file being called corresponding decompression method, need to judge whether other bundling compressed file; If desired, go to step (34); Otherwise, go to step (35);
(34) to the described first bundling compressed file and described other bundling compressed file, by the corresponding clauses and subclauses of described transmission attribute description table inquiry, find corresponding transmission object sign, receive transmission block according to described transmission object sign, receive the described first bundling compressed file and described other bundling compressed file;
(35) receiving terminal calls corresponding decompression method, solves original document from compressed file, is stored in this locality;
(36) the described original document of this accessing.
The transmission method of compressed file of the present invention wherein, as a group, generates a plurality of bundling compressed files of described original document correspondence to transmit the attribute description table.
Adopt method of the present invention,, can realize one way propagation and recover visit original document wherein at receiving terminal for the bundling compressed file that the particularly a plurality of File Compress of compressed file form; Adopt consistent description field that original document and compressed file are described, realized simply favorable expandability.
Description of drawings
Fig. 1 is a kind of concrete implementation and operation flow chart of the method for the invention;
Fig. 2 is the operational flowchart of another concrete file transmitting method of implementing of the method for the invention;
Fig. 3 is the operational flowchart of another concrete reception restoration methods of implementing of the method for the invention.
Embodiment
The present invention is in order to solve the drawback that conventional solution exists, and further sets forth the transmission method of a kind of compressed file of the present invention by following examples, below embodiment is described in detail, but not as a limitation of the invention.
As shown in Figure 1, a kind of concrete implementation and operation flow chart of the method for the invention.The embodiment of the invention said method comprising the steps of:
Step 11 generates original document and compressed file description attribute separately, and described description attribute is a compress mode and to the sign of the transmission block of transfer files content; Described description attribute and alternative document transmission attribute are put in the transmission attribute description table in the lump;
Step 12 with described compressed file and described transmission attribute description table, sends as the business element of data broadcast service, receives for the recipient;
Step 13, receive described compressed file and described transmission attribute description table at receiving terminal, the sign according to described compressed file, described compress mode and described transmission block to the transfer files content solves original document from described compressed file, be stored in this locality, for the receiving terminal visit.
Another of the method for the invention is concrete to be implemented to comprise file transmitting method and receives restoration methods.
As shown in Figure 2, the operational flowchart of another concrete file transmitting method of implementing of the method for the invention.Described file transmitting method may further comprise the steps:
Step 21 is described described compressed file and described original document description attribute separately simultaneously; Described description attribute is transmitted attribute together with other file to be put in the transmission attribute description table in the lump; For original document, in describing attribute, represent the compress mode that adopts with content coding field, transmit the data block of its content with the transmission object mark for marking; For compressed file, transmit the data block of its content with the transmission object mark for marking; The sign of actual used transmission block when the transmission object of described compressed file sign is set to transmit described compressed file; The transmission object sign of described original document is set to the transmission object sign of the first bundling compressed file, and points to the first bundling compressed file with another attribute field, sets up getting in touch between original document and compressed file; Described description attribute is transmitted attribute together with other file to be put in the transmission attribute description table in the lump.
Step 22 with described compressed file and described transmission attribute description table, sends as the business element of data broadcast service, receives for the recipient;
As shown in Figure 3, the operational flowchart of another concrete reception restoration methods of implementing of the method for the invention.Described reception restoration methods may further comprise the steps:
After step 33, receiving terminal receive data according to described transmission object sign, the treated first bundling compressed file that obtains, by the described first bundling compressed file being called corresponding decompression method, need to judge whether other bundling compressed file, if desired, go to step 34; Otherwise, go to step 35;
Below by the file transmitting method and the reception restoration methods of another concrete enforcement of application example explanation the method for the invention, on the FLUTE agreement, do expansion and realize the propagation of bundling compressed file.
Be provided with n original document F1-Fn, by m compressed file A1-Am of bundling boil down to.
In FDT (File Delivery Table), for this n file and m compressed file, each describes its attribute with clauses and subclauses.Wherein, for original document, in attribute description, represent the compress mode that it adopts with content encoding field Content-Encoding.
For compressed file, the TOI among the FDT (connection object sign) field is set to the TOI of its actual used ALC (asynchronous layered coding) packet in transmission; And for original document, its TOI field is set to the TOI of the first bundling compressed file correspondence in the bundling compressed file.For example, the TOI field of bundling compressed file A1-Am is set to the sign TOI1-TOIm of the used ALC bag of actual transmissions, then the TOI field of original document F1-Fn all is set to the transmission object sign TOI1 of A1 correspondence, and the A1 here is the first bundling compressed file in the bundling compressed file.
In addition, in FDT, original document F1 one Fn increases an attribute field Content-Container, the file name of record A1 in this field.Description as shown in table 1, as file to be transmitted association attributes.
Other field of connection object sign content encoding container file
F1…Fi… Fn A1…Am
| TOI1 | Compression method MIME value | A1 | … |
| TOI1 | Compression method MIME value | A1 | … |
| TOI1 | Compression method MIME value | A1 | … |
| TOI1 | Compression method MIME value | A1 | … |
| TOI1 | Compression method MIME value | A1 | … |
| TOI1 | … | Null | … |
| … | … | Null | … |
| TOIm | … | Null | … |
Table 1 file transmits the description of association attributes
FDT and compressed file A1-Am blaze abroad by the FLUTE agreement with the carrying of ALC packet, receive for receiving terminal and handle.
At receiving terminal, need the original document Fi among the visit F1-Fn.If receiving terminal has received FDT earlier.
If file has received and has been stored in this locality, this accessing this document then; Otherwise as follows:
One, by the clauses and subclauses of FDT inquiry Fi correspondence, finds corresponding TOI field value TOI1, receive the ALC bag according to TOI1; Simultaneously, know that by its content encoding field Fi is a compressed file, and learn its compression method, and, learn that the compressed file name is called A1 by Content-Container (container file) field.
Two, after receiving terminal received the ALC bag according to TOI1, the treated first bundling compressed file A1 that obtains by calling corresponding decompression method, had known needed other compression bundling compressed file.
Three, to these bundling compressed files, by the corresponding clauses and subclauses of FDT inquiry, find corresponding TOI value, receive the ALC bag according to TOI, these bundling compressed files are all received.
Four, after receiving terminal receives the compression bundling, call corresponding decompression method, from compressed file, solve each original document, be stored in this locality, for the receiving terminal visit.
As a kind of improvement project of this method, can in FDT, be described bundling compressed file A1-Am as a group.After receiving terminal is received one of them compressed file, find other file in same group, other compressed file in the group is received in advance, can raise the efficiency like this according to FDT.
The present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (7)
1, a kind of transmission method of compressed file, described method utilize recording document to transmit the transmission attribute description table of attribute and propagate compressed file, it is characterized in that, may further comprise the steps:
(1) generate original document and compressed file description attribute separately, described description attribute comprises compress mode and to the sign of the transmission block of transfer files content; Described description attribute kit is contained in file transmits in the attribute, be put in the described transmission attribute description table;
(2) with described compressed file and described transmission attribute description table, send as the business element of data broadcast service, receive for the recipient;
(3) receive described compressed file and described transmission attribute description table at receiving terminal, sign according to described compressed file, described compress mode and described transmission block to the transfer files content, from described compressed file, solve original document, be stored in this locality, for the receiving terminal visit.
2, the method for claim 1 is characterized in that, in step (1), described compress mode is represented with content coding field, the data block of described transfer files content transmission object mark for marking.
3, method as claimed in claim 2 is characterized in that, the sign of actual used transmission block when the transmission object of described compressed file sign is set to transmit described compressed file; The transmission object sign of described original document is set to the transmission object sign of the first bundling compressed file, and points to the first bundling compressed file with another attribute field, sets up getting in touch between original document and compressed file.
4, method as claimed in claim 3 is characterized in that, described another attribute field is the container file field, the title of the described first bundling compressed file of record in described container file field.
5, the method for claim 1 is characterized in that, in step (2), described compressed file and described transmission attribute description table carry with transmission block, blazes abroad, and receives for receiving terminal and handles.
6, method as claimed in claim 3 is characterized in that, step (3) comprising:
(31) judge whether original document has received and be stored in this locality; If go to step (36); Otherwise, go to step (32);
(32) inquire about the clauses and subclauses of described original document correspondence by described transmission attribute description table, find corresponding transmission object sign and content encoding field, according to described transmission object sign reception transmission block; Learn the compress mode of described original document by described content coding field, and learn the first bundling compressed file of described original document correspondence by described another attribute field;
(33) after receiving terminal received data according to described transmission object sign, the treated first bundling compressed file that obtains by the described first bundling compressed file being called corresponding decompression method, need to judge whether other bundling compressed file; If desired, go to step (34); Otherwise, go to step (35);
(34) to the described first bundling compressed file and described other bundling compressed file, by the corresponding clauses and subclauses of described transmission attribute description table inquiry, find corresponding transmission object sign, receive transmission block according to described transmission object sign, receive the described first bundling compressed file and described other bundling compressed file;
(35) receiving terminal calls corresponding decompression method, solves original document from compressed file, is stored in this locality;
(36) the described original document of this accessing.
7, the method for claim 1 is characterized in that, a plurality of bundling compressed files of described original document correspondence as a group, are generated and transmit the attribute description table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101084150A CN101056252B (en) | 2007-06-07 | 2007-06-07 | Transmission method of compression file |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101084150A CN101056252B (en) | 2007-06-07 | 2007-06-07 | Transmission method of compression file |
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| Publication Number | Publication Date |
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| CN101056252A true CN101056252A (en) | 2007-10-17 |
| CN101056252B CN101056252B (en) | 2010-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101084150A Expired - Fee Related CN101056252B (en) | 2007-06-07 | 2007-06-07 | Transmission method of compression file |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465791B (en) * | 2007-12-18 | 2011-08-17 | 国家广播电影电视总局广播科学研究院 | Document transmission method based on unidirection link |
| CN101237476B (en) * | 2008-03-05 | 2012-06-27 | 北京创毅视讯科技有限公司 | A file receiving method for mobile multimedia broadcasting system |
| CN101350837B (en) * | 2008-08-28 | 2012-07-04 | 深圳市迅雷网络技术有限公司 | Method and system for identifying file package bundling |
| CN103023994A (en) * | 2012-11-29 | 2013-04-03 | 深圳市新国都技术股份有限公司 | Remote downloading method for POS (point-of-sale) machine |
| CN106790302A (en) * | 2017-03-22 | 2017-05-31 | 无锡紫光存储系统有限公司 | Data ciphering method, data decryption method and system |
| CN107168962A (en) * | 2016-03-07 | 2017-09-15 | 深圳市中兴微电子技术有限公司 | A kind of document handling method, client and user equipment |
| CN113590557A (en) * | 2021-07-30 | 2021-11-02 | 北京明朝万达科技股份有限公司 | File identification method and device, storage medium and processor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1269034C (en) * | 2003-12-31 | 2006-08-09 | 中兴通讯股份有限公司 | Compression of executable document in embedded type system and its loading method |
| US8977859B2 (en) * | 2004-05-04 | 2015-03-10 | Elsevier, Inc. | Systems and methods for data compression and decompression |
| CN100581142C (en) * | 2005-11-04 | 2010-01-13 | 中国移动通信集团公司 | Method for handling attachment of E-mail |
| CN100595758C (en) * | 2006-11-27 | 2010-03-24 | 北京金山软件有限公司 | Storing method and system of playing map and obtaining method and system of playing map |
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2007
- 2007-06-07 CN CN2007101084150A patent/CN101056252B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465791B (en) * | 2007-12-18 | 2011-08-17 | 国家广播电影电视总局广播科学研究院 | Document transmission method based on unidirection link |
| CN101237476B (en) * | 2008-03-05 | 2012-06-27 | 北京创毅视讯科技有限公司 | A file receiving method for mobile multimedia broadcasting system |
| CN101350837B (en) * | 2008-08-28 | 2012-07-04 | 深圳市迅雷网络技术有限公司 | Method and system for identifying file package bundling |
| CN103023994A (en) * | 2012-11-29 | 2013-04-03 | 深圳市新国都技术股份有限公司 | Remote downloading method for POS (point-of-sale) machine |
| CN103023994B (en) * | 2012-11-29 | 2015-09-16 | 深圳市新国都技术股份有限公司 | A kind of remote download method for POS |
| CN107168962A (en) * | 2016-03-07 | 2017-09-15 | 深圳市中兴微电子技术有限公司 | A kind of document handling method, client and user equipment |
| CN106790302A (en) * | 2017-03-22 | 2017-05-31 | 无锡紫光存储系统有限公司 | Data ciphering method, data decryption method and system |
| CN106790302B (en) * | 2017-03-22 | 2019-08-20 | 无锡紫光存储系统有限公司 | Data ciphering method, data decryption method and system |
| CN113590557A (en) * | 2021-07-30 | 2021-11-02 | 北京明朝万达科技股份有限公司 | File identification method and device, storage medium and processor |
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| Publication number | Publication date |
|---|---|
| CN101056252B (en) | 2010-04-21 |
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Effective date of registration: 20180706 Address after: California, USA Patentee after: Global innovation polymerization LLC Address before: 518057 Department of law, Zhongxing building, South hi tech Industrial Park, Nanshan District hi tech Industrial Park, Guangdong, Shenzhen Patentee before: ZTE Corp. |
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Granted publication date: 20100421 |