CN1615477A - Mechanism for use of conversion in multiple files - Google Patents
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- CN1615477A CN1615477A CNA038019698A CN03801969A CN1615477A CN 1615477 A CN1615477 A CN 1615477A CN A038019698 A CNA038019698 A CN A038019698A CN 03801969 A CN03801969 A CN 03801969A CN 1615477 A CN1615477 A CN 1615477A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/543—User-generated data transfer, e.g. clipboards, dynamic data exchange [DDE], object linking and embedding [OLE]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/25—Integrating or interfacing systems involving database management systems
- G06F16/258—Data format conversion from or to a database
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/545—Interprogram communication where tasks reside in different layers, e.g. user- and kernel-space
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2209/00—Indexing scheme relating to G06F9/00
- G06F2209/54—Indexing scheme relating to G06F9/54
- G06F2209/542—Intercept
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Abstract
This invention relates to a system an method for using conversion into multiple files to accept access inquiries of multiple files in data streams. After accepting inquires, a list that it concerned with a data stream and included in multiple files is identified. Data conversion defined in a conversion list is carried out before ending the inquiry. Encoded or decode is depended on a writing or reading inquiry. The converted list is concerned with its order. It also includes a structure having a first data stream structure, which has maps to make data streams concerned with conversion lists, and lists second data stream.
Description
The application is the Microsoft's PCT application that propose on May 17th, 2003, that specify All Countries except the U.S. by the U.S..
The background of invention
Computer system of today has generally been stored mass data in some files.The form of these files may be a kind of with the compatible mutually multiple different-format of different application programs, such as word processor, spreadsheet and similar software.Usually be necessary a file is sent to another computing machine, so that the data that another user can understand or operation file is interior.Sometimes, when file is very big, before file sends to another computing machine, need execute file conversion (for example, compression).By compressed file, need less bandwidth data can be sent to another computing machine.Under another situation, can carry out another conversion (for example, encrypt) and come protected data not make to be seen by undelegated user.
In these conversions some have specific coding method and use independent file (for example, dictionary) to store the information about the specific coding method.When visiting the file of conversion, must use these independent files.If independent file is destroyed, lose maybe and can't use, it is unavailable that the file of conversion will become.In addition, because some in these conversions have defined specific separately coding method for decomposing coded data and process information, in case file is converted, file just can not be shared or have execution general processing thereon.In addition, before convert file, the data in the current conversion demand file are come layout with successive byte.The maintenance that guarantees the file byte has expended a large amount of overheads continuously, and the file of frequently editing for needs is infeasible.Like this, although this conversion is of great use, its implementation method can not provide general skill for the user.
Summary of the invention
A kind of system and method for realizing conversion more flexibly that provides for the user is provided.Briefly, the invention provides a kind of mechanism, be used in storage and many parts file (multi-part file) one or more to change relevant transitional information.Many parts file is also included within and implements data converted on it.Therefore the present invention provides a kind of file layout so that the application program of visit data can easily be visited data converted for many parts file.According to the present invention, the several data conversion may be linked at together.The data-switching of these links is called a kind of " data space ".Each data space has a kind of unique order and type to change together that be linked at.For example same transitions can be specified in two data spaces, but specifies a kind of different order to implement these conversions.Transitional information has comprised data space for information about.
According to a further aspect in the invention, many parts file comprises a plurality of data stream.Each data stream can be and a data space correlation connection.Therefore, can be converted according to some data stream in many parts file of the present invention, and other data stream may keep original form.The ability that the data stream that this conversion is specific and need not is changed whole many parts file provides very large dirigibility for the user, for example allows only encode sensitive information (for example, drawing up file) in many parts file of user.
Therefore, The present invention be directed to conversion is implemented into system and method on many parts file.Receive the request of data stream in visit many parts file.Identify the conversion list relevant once receiving this request with data stream.These catalogues are also included within many parts file.Before finishing request, on data, carry out conversion in the conversion list appointment.If this request is a kind of write operation, these data of transform coding.If this request is a kind of read operation, these data of this transforms decode.This conversion list is that order is relevant.Conversion list comprises a kind of data structure, this data structure comprise the mapping that the names associate of data stream and this conversion list is got up first data stream, list the 3rd data stream at each listed conversion of the relevant information of second data stream, identification and the conversion of each conversion of data stream.
The accompanying drawing summary
Accompanying drawing 1 is the functional block diagram that diagram is used for the computer equipment of the embodiment of the invention.
Accompanying drawing 2 shows the general utility functions process flow diagram of conversion process of the present invention substantially.
Accompanying drawing 3 is diagrams of the exemplary tree-like level of expression metadata about transformation shown in Figure 2.
Accompanying drawing 4 is synoptic diagram of conversion process.
Accompanying drawing 5 is a width of cloth logical flow charts, and it illustrates the process of the translation data in visit many parts file according to one embodiment of present invention substantially.
DETAILED DESCRIPTION OF THE PREFERRED
The invention provides a kind of with the mechanism of transformation applications in many parts file.This mechanism provides a kind of structure of designated conversion information.This transitional information and translation data exist in same document jointly.Preferably preferentially based on a kind of file layout of a plurality of parts, this form allows the several data stream type to this mechanism of the present invention in a document.The inventor determines that the link of object especially is very suitable for embodiments of the invention with the file layout that embedding (OLE) mixes.Therefore, will use the mixed file form to describe the present invention below.Yet after the description below having read over, one of ordinary skill in the art will recognize that other many parts file layout can be carried out embodiments of the invention, by describing the different modification of mechanism and adapt to these other a plurality of file layouts to following.Therefore, be understandable that embodiments of the invention are not restricted to the description here.
At first, will the present invention be described with reference to the computer environment example that the present invention can implement.Secondly, will describe certain embodiments of the present invention in detail.Optional embodiment also can comprise the specific detail about specific embodiment.
The computer environment that the present invention is exemplary
Fig. 1 is the functional block diagram of the operable computer equipment of the example embodiment of the invention.Fig. 1 shows the typical computer equipment that uses in the exemplary embodiment of the present, and with reference to figure 1, in a configuration the most basic, computer equipment 100 has generally comprised a processor 102 and system storage 104 at least.The precision architecture and the type that depend on computer equipment 100, system storage 104 can be (for example RAM) that easily loses, non-volatile (for example ROM, flash memory or the like) or both combinations.System storage 104 generally comprises operating system 105, one or more program module 106, and can comprise routine data 107.The example of program module 106 comprises a browser application, a finance management application, Word and similar software.Those assemblies in 108 come these basic structures of diagram by a dotted line in Fig. 1.
What computer equipment 100 can also comprise that permission equipment 100 and other computer equipment 118 communicate communicates to connect 116, for example is by a network.Communicating to connect 116 is examples of communication medium.Communication medium generally can comprise computer-readable instruction, data structure, and program module, perhaps with other data of a kind of data-signal form of modulation, for example, carrier wave or other transmission mechanism, and comprise any information transmission media.Term " data-signal of modulation " means a kind of signal with one or more character set own, perhaps changes by this way signal message is encoded.As an example but be not limited to this, communication medium comprises wired media, for example cable network or directly wired connection, and wireless medium, sound for example, RF, infrared ray and other wireless medium.Terminology used here " computer-readable media " had both comprised that medium also comprised communication medium.
The general discussion of assembly
Fig. 2 is the functional flow diagram of the overview of the parts of example embodiment of the invention environment usually.Example be many parts file 202, preferably OLE composite file.The OLE file mode is well known in the art and is thought to comprise a lot of a kind of mechanism of different types of data fully widely in single file.The OLE composite file uses together in conjunction with the content of many embedded type files or other support relevant with single file usually.Each element in the composite file is stored in one way, can handle these elements so that create the application program of this element.Each element is stored as a data stream, for example data stream 204,206 and 208 as shown in Figure 2.As mentioned above, each data stream can be a kind of in the several types.For example, data stream 1 204 can be a word processing file, and data stream 2 206 can be a spreadsheet, and data stream Z 208 can be a graphic file.
In the past, when request was changed on many parts file 202, whole many parts file 202 (being data stream 204-208) all requirement must be continuous and conversion together.Yet according to the present invention, these data stream 204-208 needs not to be continuous.And these data stream 204-208 can be based on section.In the following discussion, refer to the file with a plurality of data blocks based on the file of section, these data are stored and have represented entire stream.A plurality of can be continuous storage, but is not continuous generally speaking.In one embodiment, these pieces are fixed sizes, for example are fixed on 512 bytes.Alternatively, these pieces can be variable sizes within not departing from the scope of the present invention.When these data stream are edited, can create new data block, and store with the discontinuous byte of the data block of other relevant with these data stream.Therefore, allow the light editor of data stream based on the file of section, and do not guarantee that data stream keeps successional expense.
As below describing in detail, the present invention allows to specify data block 240 relevant with a data stream (for example data stream 206) in many parts file 202 to carry out conversion, rather than changes other data stream.Because the present invention allows to specify the data stream that does not rely on other data stream to change, therefore the invention provides the huge dirigibility of protection and control data.For example, Fig. 2 shows a transfer process of data stream 2 206 experience.Data stream 2 206 can represent to comprise an electrical form of the cost relevant with special item.Therefore, need maintain secrecy, so that undelegated user can not check these costs to these cost information.Therefore, be a series of conversion of data stream 2 206 data designated, 240 experience (for example, conversion 220-224).Will be understood that many conversions can make link and these links can be with any order as those of ordinary skill in the art.The order of the specific conversion of link and conversion link has been represented data space 230.General, data space can be specified a conversion or be specified a plurality of conversions.In the above example, the data that last conversion (for example changing 224) will have been changed write the data stream 2 206 that resides in the hard disk (not shown).Describe this mechanism of use in detail with the embodiment of transformation applications below in conjunction with accompanying drawing 4 to many parts file.
The discussion of specific embodiments of the present invention
Fig. 3 illustrates an embodiment of the tree hierarchy of representative metadata about transformation 210 illustrated in fig. 2.General, tree hierarchy can be included in by any way with the compatible mutually many parts file of many parts file in.Following discussion will be described tree hierarchy in conjunction with compound files.Generally speaking, compound files is generally considered to be " file system in the file ".In compound files is the level of " storer " and " data stream ", and " storer " is similar to the catalogue in the file system, and " data stream " is similar to the file in the file system.In Fig. 3, square frame representative of data flow, the oval storer of representing.Before the conversion of describing metadata 210 of the present invention, what should be noted that a bit is by diagram under the root 302 of data stream 204-208 (shown in Fig. 2) in the level of this example.The definition of data stream is an ordinary skill in the compound files form under the root.
The conversion of metadata 210 provided by the invention is discussed now in further detail.Break away from root 302 called after “ $006DataSpaces " 310 specific memory storage metadata about transformation 210.$006DataSpace storer 310 comprises 320, one DataSpaceInfo storeies 330 of a DataSpaceMap data stream and TransformInfo storer 340.In the present embodiment, select to be used as the title “ $006DataSpaces of specific memory " write in the C programming language.Therefore, in the present embodiment, title is with single non-alphanumeric mark beginning, and the value of this mark is 6.General, the title of distributing to this specific memory is arbitrarily, depends on user's enforcement.
Its relevant data space of DataSpaceMap data stream 320 usefulness comes and data stream (for example, data stream 204-208) is shone upon.In one embodiment, DataSpaceMap data stream 320 is the forms with two row: stream index row 322 and DataSpaceName row 324.Content in the stream index row 322 refers to a data stream (for example, data stream 204-208) that is stored in the compound files.Content in the DataSpaceName row refers to specific data space, and this data space has defined the relevant data stream of identification in the stream index row 322.A data space can be associated with many data stream.For example, as shown in Figure 3, being identified as the data space of " DataSpaceNamel " and data stream 1 204 and data stream 2 206 is associated.Yet above-described DataSpaceMap data stream 320 is described as a form with DataSpaceMap data stream 320, and what those having ordinary skill in the art will appreciate that is also to use other data layout to discern and data stream is associated with data space.
DataSpaceInfo storer 330 comprises one or more DataSpaceName data stream (for example, DataSpaceName data stream 332 and 334).In described embodiment, tradition DataSpaceName data stream secundum legem, the compound files short name is named.Each DataSpaceName data stream 332 and 334 has been discerned the conversion of the catalogue 336 relevant with separately DataSpaceName data stream 332 and 334.In one embodiment, each DataSpaceName data stream 332 and 334 can be one group of sequential conversion list that is made of data space.Because the conversion storehouse, the order of catalogue 336 is important.In one embodiment, first conversion 337 in these catalogues 336 is called " bottom " conversion, and meaning these conversions 337 is the positions of approaching in the bottom data stream (for example, data stream 204).Last conversion 339 in these catalogues 336 is called " top " conversion, and meaning these conversions 339 is user and generation person and the producers that approach data (for example, application program).As in conjunction with the accompanying drawings 4 and the detailed description of carrying out hereinafter, the order decision in these catalogues 336 is through the data converted data stream.
TransformInfo storer 340 comprises one or more TransformInstance storer (for example, TransformInstance storer 342,344 and 346).In one embodiment, the title of these quantum memories is exactly the title of these conversions.In each TransformInstance storer 342,344 and 346, has a called after " $006Primary " data stream of 350 at least.$006primary data stream 350 comprises the relevant information of particular conversion, for example TransformClass type 354 and TransformClass title 356.The transform class of a kind of special special conversion of realization of this TransformClass type 354 expressions (for example, the LZ compression, digital rights management (DRM) protection, or the like).In one embodiment, TransformClass title 356 is appointed as a character string (for example, type) of discerning these transform class uniquely.The character string of discerning these classifications can be to realize the item name of these transform class.TransformClass type 354 has been stipulated a kind of type indicator of how explaining the character string of appointment in the TransformClass title 356 of informing.$006Primary data stream 350 may also comprise the data space of Transformlnstance358.TransformInstanceData 358 storage is designated as the information of the specified conversion of TransformClass title 356 and TransformClass type 354.For example, if these conversions are a kind of compressing and converting, TransformInstanceData 358 may comprise a window size and analog.
For certain conversion, TransforraInstanceData 358 can allow enough spaces to store necessary information.Therefore, as further improvement, the present invention allows conversion storing additional information (for example, the TransformInstanceData data stream 370) in the TransformInstanceData data stream.Short of Tong $006primary data stream 350 afoul titles allow.The kind of TransformInstanceData will depend on the type of this conversion and change.
Be used to utilize transitional information to store the embodiment of the file layout of translation data though above-mentioned tree hierarchy has been described one, those skilled in the art under the situation that does not influence the present invention's operation, can change this hierarchy as can be known.Therefore the tree hierarchy and the translation data of any storage transitional information can not break away from the present invention.Accompanying drawing 4 is graphical explanations of transfer process, uses according to mechanism of the present invention, that be used to format the file with translation data in this process.In this illustrative transfer process, application program 400 is attempted many parts file 202 that read and write is described in accompanying drawing 2.In general, each example of transform class as input, outputs to another one IStream interface with (the i.e. conversion) data of encoding with the IStream interface.Conversion (for example, conversion 420 and 422) is registered, and the data space relevant with data stream 206 also specify, for example the application programming interface that provides via the OLE composite file.For example, when at first creating data stream 206, create the application program of the data stream 206 in many parts file 202 and be responsible for specifying which transformation applications in these data.Perhaps, these take place through an argument list, and described each argument is equivalent to a kind of conversion.
These write access are through an OS layer.In the past, write operation flows 2 206 through IStream interface 414 visit datas.Yet according to the present invention, one or more conversion can be inserted into before the IStream interface 414.Each conversion (for example, conversion 420 and 422) gets the IStream interface as input (being respectively IStream interface 410 and 412), and to another IStream interface (being respectively IStream interface 412 and 414) output (that is conversion) data of coding wherein.
Similarly, when application program 400 attempts to read data stream 2 206 in many parts file 202, can insert one or more inverse conversion (for example, inverse conversion 450 and 452).The number of inverse conversion and the number of conversion match, this be for data correctly decoded so that application program is appreciated that data.5 be described in the mode of inserting conversion between application program 400 and the data stream 206 in conjunction with the accompanying drawings now.
Fig. 5 is a width of cloth logical flow chart, is used for usually describing the process that visits the translation data in the compound files according to the present invention.Process 500 starts from starting block 501, the data in the data stream of this application requests visit many parts file.Transitional information 210 has been specified data stream.
In decision box, whether specified data stream is the member of data space.With reference to the accompanying drawings 3, in one embodiment, this is to determine by the stream index 322 of retrieval identification request data stream in DataSpaceMap.If do not have to find the stream index 322 relevant with data stream, conversion and processing that data stream does not then have any definition proceed at last.In this case, application program is with the mode visit data before the present invention.Yet event data stream index 322 is included among the DataSpaceMap, handles in square frame 504 and proceeds.
In square frame 504, obtain the DataSpaceName relevant with stream index.DataSpaceName can be character string or other any form.
In square frame 506, use the DataSpaceName that obtains from square frame 504, retrieval DataSpacelnfo storer is discerned the DataSpaceName data stream relevant with the DataSpaceName that is identified in DataSpaceMap.The DataSpaceName data stream comprises a conversion list relevant with the data space name.
In square frame 508, identification is from the conversion in the catalogue.Write or read according to visit, conversion can be distinguished coded data or decoded data.The DataSpaceName data stream is listed each conversion with the order of appointment.If visit is a kind of writing, order is from the top to the bottom.If visit is a kind of reading, order is from the bottom to the top.
In square frame 510, use the conversion of being discerned.When implementing conversion, use the transform instances data to come correct translation data.If visit is a kind of writing, carry out conversion (coding).If visit is a kind of reading, carry out inverse conversion (decoding).
In decision block 512, whether the specified data space comprises further chained transforms.Whether this can also quote transform instances and be determined by checking catalogue 336.If in data space, implemented last conversion, change output data at last and finish this process.Yet,, handle turning back to square frame 508 and carrying out aforesaid processing, up to having carried out last conversion if also have another conversion list.
In addition, what it will be appreciated by those skilled in the art that is that it can be to realize in a different manner that 300 functions that provided are provided.For example, can there be direct mapping (skipping the use of data space) from the stream name to the conversion list.Therefore, the present invention includes these and other data stream is mapped to the embodiment of its transitional information.Handle 500 and show a such embodiment.
The complete explanation that above-mentioned instructions, embodiment and data provide manufacturing of the present invention and have been used in combination.Owing under the situation that does not break away from the spirit and scope of the present invention, a lot of embodiment can be arranged, therefore the invention belongs to following appending claims.
Claims (27)
1. computer-executed method is characterized in that it comprises:
Receive the request of data stream in visit many parts file;
Discern at least one conversion list relevant with data stream, this catalogue is identified from many parts file; And
Before ending request, carry out the data-switching of appointment in the conversion list.
2. computer implemented method according to claim 1 is characterized in that, described many parts file comprises the OLE composite file.
3. computer-executed method according to claim 1, it is characterized in that, the identification of described conversion list comprises the data space mapping of retrieve data stream, data space is mapped as between data stream and the data space title relevant with data space association is provided, data space definition catalogue.
4. computer-executed method according to claim 1 is characterized in that, described at least one conversion list comprises the type and the title of the conversion that each is listed.
5. computer implemented method according to claim 1, it is characterized in that, described catalogue further comprises the transform instances data of one of conversion of discerning in the catalogue, and described transform instances data are given for the relevant information of one of the described conversion of decoding institute's data converted.
6. computer-executed method according to claim 1 is characterized in that described request is the write request of a data block, carries out described at least one conversion and write coded data in the medium with establishment on data block.
7. computer-executed method according to claim 6 is characterized in that, described data block and the data block that had before write in the medium of data stream are discontinuous.
8. computer implemented method according to claim 6 is characterized in that, the size of described data block and other data flow data piece is fixed.
9. computer implemented method according to claim 1 is characterized in that, described catalogue comprises compressing and converting and encrypts conversion.
10. computer implemented method according to claim 1 is characterized in that, described request is the data block read request, and described at least one conversion is carried out an inverse conversion so that the data through decoding to be provided to the requesting party in the data block that retrieves from data stream.
11. a computer system that has the mechanism of transformation applications in many parts file, this computer system comprises:
Processor; With
Storer, this memory configurations have and are loaded into a plurality of computer executable instructions of storer to be carried out by processor, and computer executable instructions is carried out a kind of method, comprising:
Receive the request of the data stream in visit many parts file;
At least one conversion list that identification and data stream are associated, this catalogue is identified from many parts file; And
Before finishing request, carry out the data-switching of appointment in the conversion list.
12. computer system according to claim 11 is characterized in that, described many parts file comprises the OLE composite file.
13. computer system according to claim 11, it is characterized in that, the identification conversion list comprises the data space mapping of search data stream, and this data space is mapped as between data stream and the data space title relevant with data space association is provided, and data space defines described catalogue.
14., it is characterized in that described at least one conversion list comprises the type and the title of listed each conversion according to claim 11 described computer system.
15. computer system according to claim 11 is characterized in that, described catalogue further comprises the transform instances data of one of conversion of discerning in the catalogue, and the transform instances data specify relevant information to be used for decoding by a conversion institute data converted.
16. computer system according to claim 11 is characterized in that, described request is the write request of a data block, carries out at least one and change and create the coded data that writes in the medium on data block.
17. computer system according to claim 16 is characterized in that, the data block that described data block and other had before write in the medium of data stream is discontinuous.
18. computer system according to claim 16 is characterized in that, the size of described data block and other data flow data piece is fixed.
19. computer system according to claim 11 is characterized in that, described catalogue comprises compressing and converting and encrypts conversion.
20. computer system according to claim 11 is characterized in that, described request is the data block read request, and described at least one conversion is carried out a reverse to the data block that retrieves and brought to the requesting party and provide through decoded data from data stream.
21. come calculation of coding machine readable media with a kind of data structure, comprising:
First data stream comprises the mapping with the title associated of data stream in many parts file and conversion list;
Second data stream, it lists each data stream conversion;
The 3rd data stream of each conversion, the information that the identification of the 3rd data stream is associated with conversion.
22. computer-readable media according to claim 21 is characterized in that, described data structure is included in many parts file.
23. computer-readable media according to claim 21 is characterized in that, the described title that is used for conversion list can be relevant with the multiplex data stream in many parts file.
24. computer-readable media according to claim 21 is characterized in that, described conversion list is fixed with order.
25. computer-readable media according to claim 21 is characterized in that, the item name and the classification type of described information Recognition conversion.
26. computer-readable media according to claim 25 is characterized in that, the instance data that described information is further discerned and conversion is associated.
27. computer-readable media according to claim 26 is characterized in that, described conversion comprises compressing and converting, and instance data wherein comprises the window size of compressing and converting.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2003/015707 WO2004107198A1 (en) | 2003-05-17 | 2003-05-17 | Mechanism for applying transorms to multi-part files |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1615477A true CN1615477A (en) | 2005-05-11 |
| CN100430916C CN100430916C (en) | 2008-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038019698A Expired - Fee Related CN100430916C (en) | 2003-05-17 | 2003-05-17 | Mechanism for use of conversion in multiple files |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1625510A4 (en) |
| JP (1) | JP4378342B2 (en) |
| KR (1) | KR100965709B1 (en) |
| CN (1) | CN100430916C (en) |
| AU (1) | AU2003241506B8 (en) |
| BR (1) | BR0306999A (en) |
| CA (1) | CA2470720C (en) |
| MX (1) | MXPA04007407A (en) |
| WO (1) | WO2004107198A1 (en) |
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| CN108337208B (en) * | 2017-01-19 | 2020-11-24 | 中国电信股份有限公司 | Data protection method and replacement device based on cloud storage and cloud storage system |
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| SE513356C2 (en) * | 1998-11-20 | 2000-08-28 | Ericsson Telefon Ab L M | Method and apparatus for encrypting images |
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2003
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- 2003-05-17 AU AU2003241506A patent/AU2003241506B8/en not_active Ceased
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- 2003-05-17 JP JP2005500404A patent/JP4378342B2/en not_active Expired - Fee Related
- 2003-05-17 MX MXPA04007407A patent/MXPA04007407A/en active IP Right Grant
- 2003-05-17 EP EP03731243A patent/EP1625510A4/en not_active Ceased
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101449553B (en) * | 2006-05-31 | 2013-04-17 | 思杰系统有限公司 | System and method determining character set codes for decoding request submission in the gateway |
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| AU2003241506B2 (en) | 2009-11-26 |
| JP4378342B2 (en) | 2009-12-02 |
| AU2003241506B8 (en) | 2010-01-07 |
| EP1625510A4 (en) | 2008-03-12 |
| KR20060037217A (en) | 2006-05-03 |
| AU2003241506A1 (en) | 2005-01-21 |
| BR0306999A (en) | 2005-02-09 |
| JP2006526191A (en) | 2006-11-16 |
| CA2470720A1 (en) | 2004-11-17 |
| CA2470720C (en) | 2011-10-18 |
| MXPA04007407A (en) | 2005-02-17 |
| KR100965709B1 (en) | 2010-06-24 |
| EP1625510A1 (en) | 2006-02-15 |
| WO2004107198A1 (en) | 2004-12-09 |
| CN100430916C (en) | 2008-11-05 |
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