CN1746864A - Recording disk and file attribute information management - Google Patents
Recording disk and file attribute information management Download PDFInfo
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- CN1746864A CN1746864A CN 200410054357 CN200410054357A CN1746864A CN 1746864 A CN1746864 A CN 1746864A CN 200410054357 CN200410054357 CN 200410054357 CN 200410054357 A CN200410054357 A CN 200410054357A CN 1746864 A CN1746864 A CN 1746864A
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Abstract
An information management method of file attribute on rerecordable optical disc includes carrying out record and management on file attribute through leading information and access control information recorded and managed on file of rerecordable optical disc, recording file user or unit and recording access data and time of last access on blue light optical disc BD - RE able to carry out rerecord in private computer or notebook computer system for ensuring safety of file recorded on rerecordable optical disc .
Description
[technical field]
This invention is the technology of file attribute information managing method of high dense CD of the Blu-ray Disc re-recordables such as (BDRE:Blu-ray Disc Rewritable) of relevant re-recordable.
[background technology]
Recently, but the novel high dense CD that writes down again of high image quality video data and high tone quality voice data is preserved in non-volatile recording, just is being able to popularize rapidly as the format manipulation mode to re-recordable Blu-ray Disc (BD-RE).Therefore, estimate that exploitation to its Related product appears on the market and commercialization is close at hand.
As shown in Figure 1, the file structure of BD-RE has following characteristics: promptly, below the root directory of upper, be provided with more than one BDAV catalogue at least, following " info.bdav " file and " menu.tidx " file and " mark.tidx " file of also being provided with of this BDAV catalogue.In addition, also be provided with following several catalogue in the file structure of BD-RE (FileStructure): promptly, write down a plurality of play list file (
*.rpls,
*.vpls) playlist directory, write down a plurality of clip information file (
*.clpi) CLIPINF catalogue, record corresponding to a plurality of clip file of each clip information file, promptly with the A/V code stream recorded segment file of MPEG2 transport stream (Transport Stream) mode (
*.m2ts) STREAM catalogue.
In addition, also can append other more than one auxiliary BDAV catalogue of configuration (BDAVl～BDAVn) below the root directory of above-mentioned upper, and those record the clip file on the STREAM catalogue, as regeneration control information to " 01001.m2ts " file and " 02000.m2ts " file, then respectively recorded and stored in " 01001.clpi " file and " 02000.clpi " file of being recorded in the ClLIP catalogue.In addition, decision " 01001.m2ts " file and " 02000.m2ts " file be connected regeneration and the required in proper order playlist information of regeneration, but also recorded and stored in " 01001.rpls " file that is recorded in the playlist directory.
As shown in Figure 2, the A/V code stream of recorded and stored to the BD-RE, as having continuity in time, and Segment A/V code stream (Clip A/V Stream) with fragment (Clip) unit record preservation, by actual playlist on the BD-RE (Real PlayList) and the virtual playlist (VirtualPlayList) and the clip information file (Clip Info File) of editing setting, be recorded and the management of regenerating by the user.
Therefore, be saved in the required optical disc apparatus of A/V code stream on the BD-RE regenerative operation of the Segment A/V code stream by above-mentioned actual playlist and virtual playlist and clip information file management that will read and regenerate reading with regenerative recording.
Recently, utilize PC computer systems such as (PC), various files that recording user needs on above-mentioned BD-RE or deletion and the required scheme of editing files just are being able to nervous research.For example, do not work out the last access user name (Last Access User_id) and the required solution of access time (Last AccessTime) information thereof of user name (User_id), the ID of group (Group_id) and the last accessing file that can effectively manage log file user on BD-RE as yet.Therefore, it is extremely urgent to develop and promote the problem of this solution.
[summary of the invention]
This invention is intended to promote above-mentioned solution, multiple access control (Access Control) information such as the user name of user ID, the ID of group and the last accessing file of log file user on re-recordable Blu-ray Disc CDs such as (BD-RE) and access time information thereof by record and management, for in PC computer systems such as (PC), more effectively supervision and management is recorded in the file on the CD, and the file attribute information managing method of a re-recordable optical disc is provided.
To achieve these goals, the file attribute information managing method of the re-recordable optical disc of developing according to this invention writes down and manages the access control information of the required guidance information of the file of management accounts on re-recordable optical disc and relevant these files.
In addition, on the re-recordable optical disc in this invention, also there is the required guidance information of the file of management accounts on re-recordable optical disc, and has the access control information of relevant these files.
As mentioned above, file attribute information managing method by the re-recordable optical disc in this invention, access control information to required guidance information of the file of management accounts on re-recordable optical disc and relevant above-mentioned file writes down and manages, in computer systems such as PC (PC) or notebook computer, the user or the group of simple supervision and affirmation log file on the Blu-ray Disc that can write down again CDs such as (BD-RE), and can effectively supervise and confirm last access user or group and the access date and the time of log file, having improved security personnel and supervision efficient to being recorded in the file on the re-recordable optical disc to greatest extent, is an extremely practical invention.
[description of drawings]
Fig. 1 is the file structure synoptic diagram that is recorded on the re-recordable Blu-ray Disc (BD-RE);
Fig. 2 is recorded in the view that the play list file on the re-recordable Blu-ray Disc links to each other with clip information file and clip file;
Fig. 3 and Fig. 4 are the logicality volume structure synoptic diagram of Blu-ray Disc on the BDAV field of re-recordable;
Fig. 5 is anchor message area and the management information field synoptic diagram that relevant re-recordable Blu-ray Disc is described with form;
Fig. 6 is the MIA chart-information synoptic diagram of relevant re-recordable Blu-ray Disc;
Fig. 7 is to the file attribute information managing method by the re-recordable optical disc in this invention, the file form detailed structure synoptic diagram that writes down and manage;
Fig. 8 is to the file attribute information managing method by the re-recordable optical disc in this invention, the extended attribute form detailed structure synoptic diagram that writes down and manage;
Fig. 9 is the computer system structure synoptic diagram that adopts the file attribute information managing method of the re-recordable optical disc in this invention.
[embodiment]
The correct example of file attribute information managing method that describes the re-recordable optical disc of developing according to this invention with reference to accompanying drawing in detail is as follows: promptly,
At first, the file attribute information managing method of the re-recordable optical disc of developing according to this invention is applicable to the Blu-ray Disc highly dense CDs such as (BD-RE) of re-recordable.In addition, in computer systems such as PC or notebook computer, this invention also is applicable to record and manages user name (Last Access User_id) and the access time information multiple access control informations such as (Last Access Time Stamp) thereof of going up log file user's user name (User_id), the ID of group (Group_id) and last accessing file at the Blu-ray Disc (BD-RE) of re-recordable.
As shown in Figure 3 and Figure 4, logicality volume structure at common BD-RE, in the logicality volume structure on the BDAV field (Logical Volume Structure on BDAV domain), comprise anchor message area (AIA:Anchor Information Area) and management information field (MIA:ManagementInformation Area).In anchor message area (AIA), can write down and manage a concordance list (HeaderTable) and a plurality of transfer table (Loop Table[0]～[31]).In above-mentioned concordance list, can write down indicator dog (Pointing Block[0]～[31]), and in transfer table, then can write down and upgrade piece group (Updated Block[0]～[15]).
In addition, in above-mentioned management message area (MIA), comprise a plurality of management information pieces (MIB[0]～[15]), as in main management message area (Main MIA), comprising MIA chart (MAP), file table (File Table), disc area table (Disc Region Table), allocation rule table (Allocation Rule SetTable) and filename form (File Name Table).
As shown in Figure 5, in the BD-RE that adopts this invention, also comprise this management information of the required extended attribute form of log file access control (Extended Attribute Table), be recorded in the indicator dog (Pointing Block) of the concordance list in the anchor message area (AIA), link to each other with the renewal piece (Updated Block) of transfer table, have the structure that links to each other with the MIA chart and upgrade piece.As shown in Figure 6, in the MIA chart, comprise the information that record links to each other with the beginning management information piece (Start MIB) of each form, promptly in the MIA chart, comprise the beginning management information piece (Start MIB ofFile Table) of log file form and the beginning management information piece of extended attribute information form (Start MIB of Extended Attribute Table).
As shown in Figure 7, in file form (File Table), comprise log file table gauge outfit (File TableHeader) and more than one file logging (File Record), and in file table gauge outfit, then Record ID (Identification), translation (Version), data type symbol (Signature) information such as (Data Type).
In addition, in above-mentioned file logging, can write down and management document name recording mechanism (File Name RecordNumber), next link (Next Link), father link (Parent Link), attribute (Attribute), extended attribute record number (Extended Attribute Record Number), file record type (File RecordType), file record type foundation (File Record Type Dependent), creation-time (Creation Time) and modification time (Modification Time).
As shown in Figure 7, in above-mentioned attribute (Attribute) information, can write down user name mark and the ID of group mark, for example in " Set_User_id " and " Set_Group_id " of 1 figure place, can select at least to write down more than one according to this invention additional definitions.As shown in Figure 8, extended attribute record (Extended AttributeRecord) links to each other with extended attribute record number (Extended Attribute Record Number) in comprising the corresponding document record that is recorded in setting " Set_User_id " or " Set_Group_id ", and also comprises next extended attribute record (NextExtended Attribute Record) and the extended attribute information (Extended Attribute Information) of writing down at above-mentioned extended attribute record (Extended Attribute Record).
In addition; in above-mentioned extended attribute information; with the form of file access control information, record and management document link number (File Link Count); user name (User_id); the ID of group (Group_id); permission (Permissions) information; last access user name (Last Access User_id); last access time stamp (Last Access Time Stamp); duplicate management system (the CGMS:Copy GenerationManagement System) information that takes place; type of data structure (Data Structure Type); protection system (Protection System) information.
As mentioned above, user name and the ID of group can write down user or the group's identifying information with the management accounts corresponding document, and above-mentioned last access user name (Last Access User_id) the last access of refreshable record any one user's of log file identifying information, above-mentioned last access user name can replace being recorded as the ID of access group (Last Access Group_id) or additional record and manage into the last access ID of group.
For example, above-mentioned last access time stamp, better a record with information shown in date (Date) of the record size access corresponding document of 4 bits and time (Time), this value is with special time, as " 00:00:00Local time, January 1; 1970 " is reference time, betters a record time of last access with the time of second unit.
As shown in Figure 9, by central processing unit 10, Video Controller 11, north bridge 12, storer 13, Audio Controller 14, CD drive 15, south bridge 16, storer 17, in the computer system that keyboard controller 18 is formed, in the operating system of executable operations on uploading to storer 13 (OS:Operating System), the user is during by search and with reference to any one file of BD-RE file-system access of as above writing down and manage, the intrinsic user name that will belong to this user is as last access user name (Last Access User_id), the time of also saying last accessing file simultaneously is as last access time stamp (Last Access Time Stamp), and with its record with manage in the extended attribute record (Extended Attribute Record).
In addition; date and time with the above-mentioned file of access writes down and manages as last access time stamp; so that use a computer the user search of system and with reference to be recorded in BD-RE on the relevant access control information of file, more effectively protect and supervise each file.
By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.
Claims (8)
1, the file attribute information managing method of re-recordable optical disc comprises:
The access control information of the reply required guidance information of the file of management accounts on re-recordable optical disc and relevant these files writes down and manages.
2, the file attribute information managing method of re-recordable optical disc as claimed in claim 1 is characterized in that,
In the required file logging of the file that management is write down on the re-recordable optical disc, should be in file name record number, next link, father link, attribute, extended attribute record number, file record type, file record type foundation, creation-time, modification time information, comprise at least record one of them to begin a project.
3, the file attribute information managing method of re-recordable optical disc as claimed in claim 2 is characterized in that,
In attribute information, should optionally comprise record and can distinguish whether write down and manage, the above-mentioned file logging user's of relative recording user name or the required identifying information of the ID of group.
4, the file attribute information managing method of re-recordable optical disc as claimed in claim 2 is characterized in that,
In access control information, should comprise the extended attribute information that the extended attribute record of record and file logging number links to each other,
And in above-mentioned extended attribute information; should be at file chaining number, user name, the ID of group, License Info, last access user name, last access time stamp, duplicate and take place in management system information, type of data structure, the protection system information, comprise at least record one of them to begin a project.
5, the file attribute information managing method of re-recordable optical disc as claimed in claim 4 is characterized in that,
Above-mentioned last access user name should be bettered a record as the user's who belongs to last access corresponding document intrinsic ID.
6, the file attribute information managing method of re-recordable optical disc as claimed in claim 4 is characterized in that,
Above-mentioned last access time stamp should be bettered a record as the date and time information that belongs to last access corresponding document.
7, the CD that can write down again is characterized in that,
Also answer record management to be recorded in the required guidance information of file on the re-recordable optical disc on the described CD, and the access control information of the relevant above-mentioned file of record.
8, CD as claimed in claim 7 is characterized in that,
The CD of described re-recordable should be the Blu-ray Disc of re-recordable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410054357 CN1746864A (en) | 2004-09-08 | 2004-09-08 | Recording disk and file attribute information management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410054357 CN1746864A (en) | 2004-09-08 | 2004-09-08 | Recording disk and file attribute information management |
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| Publication Number | Publication Date |
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| CN1746864A true CN1746864A (en) | 2006-03-15 |
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| CN 200410054357 Pending CN1746864A (en) | 2004-09-08 | 2004-09-08 | Recording disk and file attribute information management |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107239712A (en) * | 2016-03-29 | 2017-10-10 | 阿里巴巴集团控股有限公司 | The hidden method and device of user profile based on application program |
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2004
- 2004-09-08 CN CN 200410054357 patent/CN1746864A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107239712A (en) * | 2016-03-29 | 2017-10-10 | 阿里巴巴集团控股有限公司 | The hidden method and device of user profile based on application program |
| US10671755B2 (en) | 2016-03-29 | 2020-06-02 | Alibaba Group Holding Limited | Method and device for concealing user information contained in application |
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