CN1784738A - Write once optical disc,and method and apparatus for recovering disc management information from the write once optical disc - Google Patents
Write once optical disc,and method and apparatus for recovering disc management information from the write once optical disc Download PDFInfo
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- CN1784738A CN1784738A CN 200480012574 CN200480012574A CN1784738A CN 1784738 A CN1784738 A CN 1784738A CN 200480012574 CN200480012574 CN 200480012574 CN 200480012574 A CN200480012574 A CN 200480012574A CN 1784738 A CN1784738 A CN 1784738A
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Abstract
A write once optical recording medium and a method and apparatus for storing and recovering defect management information to and from the write once optical recording medium are provided. The recording medium includes at least one recording layer, and a data area on the recording layer. The data area includes at least one spare area and a user data area. The spare area contains at least one replacement cluster, each of the replacement clusters storing therein address information of a corresponding defective cluster.
Description
Technical field
The method and apparatus that the present invention relates to a kind of Write-once optical disc and be used for recovering management information from Write-once optical disc.
Background technology
CD is widely used as the optical medium of record mass data.Recently, in the middle of CD, the recording medium of a kind of new high-definition digital video disc (HD-DVD) type, as Blu-ray disc, just under development.High-definition video data and high definition audio data can both write and be kept at for a long time on this Blu-ray disc.This Blu-ray disc, HD-DVD technology promptly of future generation can be than existing DVD storage more data.
Usually, thick 1.2mm of this Blu-ray disc and diameter 12cm, and have the optical transport layer of royal purple laser of Tong Guo the wavelength 405nm of 0.1mm thickness, its DVD than the red laser of existing use wavelength 650nm is more accurate.
Among the multiple draft standards of this Blu-ray disc is being prepared.In this respect, the preparation of the various draft standards of one time write-in-type blue light dish (BD-WO) is after can rewriteeing Blu-ray disc.The BD-WO record one time write-in-type blue light dish once that is a kind of permission in its zone, and BD-RE to be a kind of permission write down in its zone, the rewritten Blu-ray disc of erasable and duplicate record.
Fig. 1 schematically shows the structure of the recording areas of BD-RE.Blu-ray disc among Fig. 1 has a recording layer, and it provides Lead-In Area, data area, leading-out zone successively from the inner periphery of dish.The data field has the interior spare area (ISA0) that lays respectively at the data area inner circumferential portion and is positioned at the outer spare area (OSA0) of data area excircle part, and the user area that is positioned at the middle part, data field that supplies user data to write/write down.
If write the defect area of intermediate detection in the BD-RE data area in data, then to carry out and replace write operation, this operation is that the data in the defect area are transferred in the spare area.Afterwards, the relevant information of position of defect area and so on and the relevant information in the replacement zone of usefulness, all the management information as defect area is written in the defect management (DMA1DMA2, DMA3, and DMA4) that imports/go out the district, is used for defect management.
Yet, because in Write-once optical disc, on the specific region, only can carry out the write-once operation, thereby the good following information of management is just particularly important, that is, represent whether a zone has the positional information that writes the data on it, expression can write the positional information of position of the disk area of data, the defect area information of the position of expression defect area, or the like.At the Write-once optical disc of developing for example in the unified standard of BD-WO, under the situation that defect management information is damaged or does not write, the method that defect management information is provided and recovers defect management information need be set up unified standard.If under the situation of the management information that does not have recovery to lose, data are write in the dish, then a lot of problems can appear, for example write data according to previous incorrect management information, but and the position that obtains posting field on the incorrect dish.
Summary of the invention
Thus, the present invention relates to a kind of write once optical recording medium, and to/from the method and apparatus of optical disc storage and recovery management information, it has been eliminated fully by the limitation of prior art and the caused one or more problems of shortcoming.
Other features and advantages of the present invention will be described in explanation subsequently, and through following check or study from the practice of the present invention, above-mentioned feature and advantage are conspicuous for the person of ordinary skill of the art.Can realize and obtain purpose of the present invention and other advantages as specifically noted structure in instructions and claim and the accompanying drawing.
According to an aspect of the present invention, provide a kind of recording medium, it comprises: at least one recording layer; And the data field on this at least one recording layer, this data field comprises at least one spare area and user data area, and this at least one spare area comprises at least one replacement cluster, and each of this at least one replacement cluster all comprises the address information of corresponding defect cluster.
According to a further aspect in the invention, provide a kind of recording medium, it comprises: at least one recording layer; And the data field on this at least one recording layer, this data area comprises at least one spare area and user data area, this at least one spare area storage replacement data, and this replacement data is replaced defective data; Wherein this replacement data further comprises the address information of corresponding defective data, and this replacement data and defective data are stored by scheduled unit.
According to a further aspect in the invention, the method of the management information on a kind of managing recording medium is provided, this recording medium comprises the data field, this data field comprises at least one spare area and user data area, this at least one spare area comprises at least one replacement cluster, and this method comprises: (a) address information of storage corresponding defective cluster in each of at least one replacement cluster.
According to a further aspect in the invention, a kind of method from recording medium recovery management information is provided, this recording medium comprises and is used for writing down therein temporary disk (T-disk) definition structure (temporary discdefinition structure, TDDS) temporary defect management area of information and temporary defect list (TDFL) information, this method comprise reproduces (n-1) individual TDDS information from this recording medium; Determine whether the indicated definite zone subsequently, zone of (n-1) individual TDDS information has record; If should determine that the zone have record, then determine and the positional information that should definite zone be associated; And based on this individual TDDS information of determining of positional information reconstruct (n).
According to a further aspect in the invention, a kind of method from recording medium recovery management information is provided, this recording medium comprises the temporary defect management area that is used for writing down therein temporary disk (T-disk) definition structure (TDDS) information and temporary defect list (TDFL) information, this recording medium further comprises at least one spare area, this spare area has at least one replacement cluster, each of this at least one replacement cluster has the address information that is stored in corresponding defect cluster wherein and the address information of replacement cluster, and this method comprises reproduces (n-1) individual TDFL information from recording medium; From the replacement cluster of determining, reproduce the address information of defect cluster and the address information of replacement cluster; And come the individual TDFL information of reconstruct (n) based on the address information of reproducing.
According to a further aspect in the invention, a kind of equipment that is used for the management information on the managing recording medium is provided, this recording medium comprises the data field, this data field comprises at least one spare area and user data area, this at least one spare area comprises at least one replacement cluster, and this equipment comprises: be used for to the recording medium recording data with from the recoding/reproduction unit of recording medium reproducing data; And be used for each the control module that controlling recording/reproduction units stores the address information of corresponding defect cluster into this at least one replacement cluster.
According to a further aspect in the invention, a kind of equipment from recording medium recovery management information is provided, this recording medium comprises the temporary defect management area that is used for writing down therein temporary disk (T-disk) definition structure (TDDS) information and temporary defect list (TDFL) information, this equipment comprises combination of elements, and these elements are used for: from the individual TDDS information of this recording medium reproducing (n-1); Determine whether the indicated definite zone subsequently, zone of the individual TDDS information of this (n-1) has record; If should determine that the zone have record, then determine and the positional information that should definite zone be associated; And based on this individual TDDS information of determining of status information reconstruct (n).
According to a further aspect in the invention, a kind of equipment from recording medium recovery management information is provided, this recording medium comprises the temporary defect management area that is used for writing down therein temporary disk (T-disk) definition structure (TDDS) information and temporary defect list (TDFL) information, this recording medium further comprises at least one spare area, this spare area has at least one replacement cluster, each of this at least one replacement cluster has the address information that is stored in corresponding defective cluster wherein and the address information of replacement cluster, this equipment comprises combination of elements, and these elements are used for: reproduce (n-1) individual TDFL information from this recording medium; From the replacement cluster of determining, reproduce the address information of defect cluster and the address information of replacement cluster; And based on the individual TDFL information of address information reconstruct (n) of this reproduction.
Should be understood that the generality of front of the present invention is described and following detailed is exemplary and indicative, and is intended to provide the of the present invention further explanation to as claim.
Description of drawings
Included accompanying drawing provides further understanding of the present invention, and a part combined and formation the application, and it has illustrated embodiments of the invention, and is used for explaining principle of the present invention together with the description.
In the accompanying drawings:
Fig. 1 schematically shows the structure that BD-RE goes up write area;
Fig. 2 shows the structure according to Write-once optical disc of the present invention;
Fig. 3 shows the temporary disk (T-disk) management information on the Write-once optical disc that can be stored in Fig. 2 according to the present invention;
Fig. 4 shows the record cell structure of replacing the district in the spare area of Write-once optical disc of according to the present invention Fig. 2 and 3;
Fig. 5 shows the content of the temporary disk (T-disk) management information on the Write-once optical disc that can be stored in Fig. 2 and 3 according to the present invention;
Fig. 6 shows the method for recovering the management information of Write-once optical disc according to first embodiment of the invention;
Fig. 7 shows according to the present invention on Write-once optical disc and to determine to have write down or the method for posting field not;
Fig. 8 shows the content of the temporary defect area information of losing in the Write-once optical disc among Fig. 2 and 3 according to the present invention;
Fig. 9 shows the method that can be applicable to the recovery temporary disk (T-disk) management information of Write-once optical disc according to second embodiment of the invention;
Figure 10 shows the method that can be applicable to the recovery temporary defect district information of Write-once optical disc according to second embodiment of the invention; And
Figure 11 shows according to optical data recording/reproducing device of the present invention.
Embodiment
Now will be in detail with reference to the preferred embodiments of the present invention, its example example is in the accompanying drawings.For convenience of description, as an example, the situation of one time write-in-type blue light CD (BD-WO) will be described.
In this process, although up to the present, the inventor has as much as possible selected widely used generic term in description of the invention, but when the implication of term when the application's relevant instructions partly is described in detail, the inventor is a term of selecting special situation on inventor's judgment.Therefore, if, should be by understanding the present invention as the implication of the defined term of inventor.
Definition of＜CD and disc management information 〉
Fig. 2 shows the structure according to the Write-once optical disc such as the BD-WO of the embodiment of the invention.The dish of Fig. 2 is the single-layered disk with a recording layer, but the present invention is what be can be applicable to as the multilayer Write-once optical disc of double-deck BD-WO.
With reference to figure 2, the recording layer of dish comprises Lead-In Area, data field and draw-out area.Spare area ISA0 and outer spare area OSA0 were used to replace defect area in the data field comprised, to carry out the physical imperfection management.Lead-In Area comprises first and second DMA (DMA1 and DMA2), and leading-out zone comprises third and fourth DMA (DMA3 and DMA4).Also provide temporary defect management area (TDMA) to be used for temporarily storing and managing defective area information.When no longer including data and will write this Write-once optical disc or response, be stored in data among the TDMA and just be transferred to and carry out nonvolatil storage among the DMA from the order of main frame or system.Usually, in view of the importance of defect management, for the purpose of redundancy, each DMA is loaded with identical management data.
Usually, with regard to CD-RW since can be as required repeatedly write/erase many times, so do not need big DMA.Yet this is not the situation of Write-once optical disc.With regard to Write-once optical disc, in case but data are written to a posting field, and this zone just can not write data again.Thus, defect management needs bigger directorial area and/or effective directorial area structure and method.
As shown in Figure 2, TDMA comprises the TDMA1 that distributes to Lead-In Area and have fixed size, and distribute to outer spare area OSA0's and the TDMA2 that changes according to the size of this spare area of big I.For example, if the size of OSA0 is N*256 bunch, then the size of TDMA2 (P bunch) is: P=(N*256)/4.
One or more temporary defect lists (TDFL) and one or more temporary disk (T-disk) definition structure (TDDS) as management information, are written among each TDMA1 and the TDMA2.Therefore,, in a narrow sense say, be meant the information that is written among TDFL and the TDDS according to management information of the present invention.
If in data field or spare area, find defect area, then carry out the processing procedure of data being transferred to spare area from defect area.This TDFL is used for by utilizing defect area to tabulate to manage the information of a series of like this processing procedures, and writes out (being the situation of single-layered disk at this dish) according to the size of defect area tabulation with 1～4 bunch size.This TDDS writes out with the cluster size, and as shown in Figure 3, in a narrow sense says, comprises dish definition structure (DDS) information and dish user mode information (trace information or space bit map (SBM)).
In this application, term " TDDS " and " TDDS information " are used interchangeably, and term " TDFL " and " TDDS information " also are used interchangeably.
Optimum power calibration area (OPC district) is assigned to Lead-In Area, is used to search for optimum write power, and its structure is identical with the CD of prior art with purposes.
By with reference to figure 3, will describe the content of each TDDS in more detail and compare with the structure of the CD-RW of correlation technique.
As shown in Figure 3, in the situation of CD-RW, DDS takies about 60 bytes, a very little part in the cluster (having 32 sectors), and rest parts zero padding in the cluster.Yet in the present invention, except as beyond the 60a of this zone the same with DDS in the CD-RW of prior art (as, 60 bytes), the remainder 60b of a sector is used as the DDS of Write once optical disc.Therefore, TDDS of the present invention is made up of the remainder 60c that is used for storing the whole sector (2048 byte) of DDS and being used for the cluster of memory disc user mode information (trace information or space bit map (SBM)).
As the part of DDS, be used for the required information of managing write-once type CD according to the present invention and comprise following information, yet also can the standard of being included in set up other required in process information.
At first, for supporting a plurality of different wiring methods, this DDS comprises that logging mode sign 62 is used to indicate specific logging mode/method.The logging mode sign 62 expression continuous recordings of ' 00000 000b ' that for example, has value, and the logging mode sign 62 with value ' 0000 0001b ' is represented recorded at random.DDS further comprise be used for each spare area ' PSN ' of nearest TDFL ' has used last PSN ' and ' first usable spare cluster in ISA0/OSA0 ' and ' PSN ' of (n-1) individual TDDS of OPC.The PSN meaning is a physical sector number.
Next, in remaining 31 sectors (60c) of this cluster of TDDS, write down dish user mode information of the present invention.This dish user mode information is the information that changes with the use of coiling, and more specifically, in the situation of Write-once optical disc, but need this information, write/do not write the zone and obtain this zone by whole disk area is divided into the other posting field of precise search.Although disclosing, Fig. 3 use first sector, front of cluster as the DDS zone, and remaining 31 sectors of this bunch are as the zone of memory disc user mode information, but the present invention includes zone, preceding 31 sectors of using bunch as memory disc user mode information, and with the 32nd the last sector of this bunch as the DDS zone.
As mentioned above, dish user mode information can be, for example trace information or SBM.If logging mode sign 62 expression continuous recordings, trace information is stored among the regional 60c as dish user mode information so.And if logging mode sign 62 is represented recorded at random, SBM is recorded in regional 10c as dish user mode information so.
Trace information is a kind of information of relevant dish user mode, and can be used on to use and have on the continuous recording dish.For example among CD and the DVD, known user mode information is RZone, fragment or the recording interval that is used for the trace information of CD and is used for DVD at the Write-once optical disc of prior art.All these various terms are called as ' trace information ' in the present invention as adopted name, and should be understood to its meaning.
SBM (space bit map) is the information of another kind of indicating panel user mode, and also can be applicable to have the dish of recorded at random according to the present invention.The Zone Full that SBM can be used for coiling, wherein (for example to each minimum record cell, under the BD-WO situation, be one bunch) bit of distribution, if this bunch is the zone that has write, then use ' 1b ' to represent this record cell, if this bunch is not write the zone, then use ' 0b ' to represent this record cell (vice versa).Therefore, based on reading SBM information, can easily know the current state that has write the zone and do not write the zone of Write-once optical disc.
An example of trace information schematically illustrates by 64 expressions and at the right-hand component of Fig. 3.The last record position of the data of each track in the trace information indicating panel, and this trace information can comprise the information about last recording address (LRA), in its expression user area the address of last posting field.
Above-mentioned TDDS and TDFL are that to carry out the defect management of Write-once optical disc needed.Yet the situation of record TDDS and/or TDFL failure may take place, for example, and power fail.For this situation, the invention provides a kind of structure and being used to of coiling and recover for example method and apparatus of TDDS and/or TDFL of management information.This dish structure is described now.
Fig. 4 shows the example according to the replacement cluster R in the spare area (for example ISA0 among Fig. 2 or OSA0) of the Write-once optical disc such as BD-WO of the present invention.As shown in Figure 4, when in the user area of Write-once optical disc or spare area, finding defective, plan to write or write have this defective bunch user data be written in the Free Region of spare area.Herein, this Free Region is called replacement cluster d, and this have a defective bunch be referred to herein as defect cluster D.Known bunch is record cell and comprises one or more sectors.
Replacement cluster d comprises address area 21, user's control data zone 22 and replaces user data area 24.The address information of address area 21 storage replacement cluster d, for example, the PSN of replacement cluster d.Other information can be stored in this address area 21.The address information of defect cluster D, the PSN of this defect cluster D for example is stored in the specific region of replacement cluster d, and this specific region can be, for example, perhaps address area 21 or user's control data zone 22.This user's control data zone 22 is wherein also stored the control data that is used for replacement cluster d.Replace the user data that user data area 24 storages plan to write or write defect cluster D.
Use the dish structure among Fig. 4, will a kind of method of recovering management information according to the first embodiment of the present invention be discussed with reference to figure 5-8.In Fig. 5 and 8, dot dish/defect management information of losing, i.e. the information that will recover.
As shown in Figure 5, Write-once optical disc, for example Fig. 2 and 3 dish, a plurality of TDFL of storage in TDMA such as TDMA1 (#n-1, #n ...) and a plurality of TDDS (#n-1, #n ...).Each TDFL and TDDS have the structure of being discussed as among the application.In this example, suppose that (n) individual TDDS 32 loses and defective appears at A, B in the data field, C bunch, user data is write ' a ', ' b ' in the spare area (ISA0) that replaces A, B, C bunch, ' c ' bunch respectively as a result.
Be (n) the individual TDDS 30 that recovers to lose, with reference to figure 6, when Write-once optical disc is written in the system that comprises data recording/reproducing device (for example back will discuss system shown in Figure 11), read (n-1) the individual TDDS 30 (Fig. 5) (step 601) that correctly is recorded on the BD-WO.In case obtain this (n-1) individual TDDS, just know when writing (n-1) individual TDDS, coil the position of last posting field.For example, from this (n-1) individual TDDS, can determine to have used in the Lead-In Area the last PSN of OPC, can obtain to be used for the dish user mode information (trace information (use LRA) of this data field or SBM), and can obtain first usable spare cluster among the spare area ISA0/OSA0.
If determine that next TDDS ((n) individual TDDS 32) needs to recover (step 602), check the certain applicable areas of this dish so, to obtain this (n) needed information of individual TDDS (step 603) of reconstruct.More specifically, check the zone of following, determine whether there is any record in that zone by after represented each the last posting field of (n-1) individual TDDS.This inspection is undertaken by using the RF signal testing, will discuss with reference to figure 7 hereinafter.Determine then to follow each position and address, and use these positions and address to come this (n) individual TDDS (step 604) of reconstruct by this end of record (EOR) in the zone of the represented last recording address of (n-1) individual TDDS at these.And (n) individual TDDS of reconstruct is used as (n) individual TDDS32 and is recorded in (step 604) among the TDMA1, and according to the present invention, this has finished the recovery to (n) the individual TDDS that loses.Step 602 can automatically be carried out or carry out according to the instruction of user or main frame.
Fig. 7 has illustrated the RF signal testing, and according to the present invention, it is used to determine whether disk area is posting field or not posting field.As shown in Figure 7, utilize the RF signal can determine on the dish record of record/(writing/do not write) zone.Usually, the RF signal can be from the writing of dish/posting field detects, and from not the writing of dish/posting field can only not detect less or not have the RF signal.Therefore, by detecting the RF signal, can detect the FA final address that has write the zone, the address that promptly (n) individual TDDS will appointment.
Processing procedure is as shown in Figure 7 carried out in each specific region to dish, obtains the information ( step 6031,6032 and 6033 among Fig. 6) of the TDDS informational needs of reconstruction of lost.For example, can determine from the RF signal of Lead-In Area by detecting with the last PSN of OPC.Can obtain coiling user mode information (trace information (using LRA) or SBM) can obtain first usable spare cluster by detecting the RF signal that comes from spare area ISA0/OSA0 by detecting the RF signal that comes from the data area.
Below, will method according to a kind of recovery (n) individual TDFL of first embodiment of the invention be described with reference to figure 5-8.
The example of the structure of (n-1) the individual TDFL 40 among Fig. 5 as shown in Figure 8.In the example of Fig. 5 and 8, (n-1) individual TDFL 40 comprises three clauses and subclauses 51, and it comprises the PSN of each defect cluster A, B, C and corresponds respectively to replacement cluster a, the b of a bunch A, B, C, the PSN of c.In other words, because bunch A, B, the defective of C in the data field, user data is write bunch a, b in the spare area (ISA0), c respectively to replace bunch A, B, C.Managed and be stored clauses and subclauses about the information of defect cluster and replacement cluster then as (n-1) individual TDFL 40.
In writing time subsequently, suppose to have found defective among bunch D in the data field.Bunch d that can be written in the spare area (ISA0) in the data that are intended to write or write bunch D replaces bunch D., owing to show the failure of this replacement in writing writing (n) individual TDFL, system or main frame do not know that this replacement writes.Like this, the method for recovering (n) individual TDFL needs, and is described below according to the present invention.
As shown in Figure 6, when dish is written into, read the reproducible correctly TDDS and the TDFL (step 601) of record, just (n-1) individual TDDS 30 and (n-1) individual TDFL 40 among Fig. 5 in system.Under the situation of above-mentioned example, from (n-1) individual TDFL shown in Figure 8, can access three positional informations 50 that are used for the clauses and subclauses of defect cluster A, B, C and from (n-1) the individual TDDS shown in Fig. 5, can access first usable spare cluster (50) among the ISA0/OSA0.In this example, the positional information 50 of first usable spare cluster that obtains from (n-1) individual TDDS, position or the start address of expression replacement cluster d.
Then, determine in exist (6033 in the step 603) of following by any record in the zone of the first represented usable spare cluster 50 of (n-1) individual TDDS.That is to say system detects whether there is any record in the zone of bunch d.This detection is above finished in conjunction with the RF signal testing of Fig. 7 discussion by utilizing.Depend on system, step 6033 can carry out or wait according to the request from main frame carrying out (step 602) automatically.Under the situation of above-mentioned example, determine that a bunch d has record.
Yet, in order to recover (n) individual TDFL, needing clauses and subclauses completely, it comprises the positional information corresponding to the defect cluster D of this replacement cluster d.But this positional information is not only to write down and can obtain by using the RF signal testing to determine whether replacement cluster d has.Therefore, in order to obtain the positional information of this defect cluster D, the present invention utilizes the positional information of defect cluster D, it is recorded in the specific region of reproducible replacement cluster d, as mentioned in conjunction with Fig. 4 discussed.For example, the PSN of this defect cluster D is recorded in or user's control data zone 22 of address area 21 or replacement cluster d in.
Therefore, in the above example,, can know the positional information of defect area defect cluster D based on the user's control data zone (or address area) that reads replacement cluster d.This information is used to the last full clauses and subclauses 52 of reconstruct (n) individual TDFL as shown in Figure 8.In this example, can be with the PSN of the replacement that obtains by step 6033 bunch d and the last full clauses and subclauses 52 of coming the individual TDFL of reconstruct (n) corresponding to the PSN of the defect cluster D of replacement cluster d, the PSN of this defect cluster D is obtained by the user's control data zone (or address area) that replaces bunch d.So can use from three clauses and subclauses 51 of (n-1) individual TDFL and the last clauses and subclauses of recovering 52 and come complete (n) the individual TDFL of reconstruct.
(n) the individual TDFL that has recovered as previously discussed is written in the TDMA zone, and TDMA1 has for example finished the recovery processing procedure (step 604) of TDFL.
To be described term " PSN " and " last PSN " in more detail below.A record cell that has write on the dish (under the BD-WO situation be bunch) has a plurality of sectors, and a PSN is the start address of first sector, and last PSN is the start address of last sector.Therefore, the direction that increases at PSN as the service orientation of fruit tray, so can by bunch " PSN " (promptly, bunch the start address of first sector) know the position of specific record cell, the direction (as the OPC zone) that the direction of using as fruit tray reduces at PSN, can know the position of specific record cell by " last PSN " (that is the start address of the last sector of this bunch) of this bunch so.According to the present invention, " positional information " means " PSN " and/or " last PSN ", but is not limited thereto, and can refer to represent the additive method of special place or position.
Referring now to Fig. 9 and Figure 10, the method according to the recovery management information of second embodiment of the present invention is discussed, the management information (for example, (n) individual TDDS and (n) individual TDFL) that it is lost from zone recovery of dish last registration.Fig. 9 has illustrated the treatment step that recovers (n) individual TDDS, and Figure 10 has illustrated the treatment step that recovers (n) individual TDFL.
For (n) the individual TDDS that recovers to lose, as shown in Figure 9, when the Write-once optical disc as Fig. 2 and 3 mid-games is loaded in the system that comprises data recording/reproducing device, the position of the last record in applicable zone on the dish (for example, spare area, data area, Lead-In Area etc.) is determined (step 901).This can finish by utilizing the front contact RF input that Fig. 7 discussed.Next step reads (n-1) individual TDDS (step 902) from TDMA.Afterwards will be in the positional information that step 901 obtains compare with the positional information that obtains in step 902 (step 903).If have any difference between this two parts positional information, then utilize this different information and (n-1) individual TDDS to come (n) the individual TDDS (step 904) of reconstruction of lost, its mode and foregoing first embodiment are similar.For example, the position (in the time of (n) individual TDDS) of the last record that this different information should display disc reality, and this information is used for upgrading or change is stored in different with it information among (n-1) individual TDDS, forms (n) individual TDDS.If but do not detect difference in step 903, then system thinks and does not exist (n) individual TDDS and processing procedure to finish.
According to system, such situation can be arranged, wherein directly do not compare step 903 as (n) individual TDDS from the regional resulting positional information of coiling last record.There is not (n-1) individual TDDS, or the reliability of the data of from (n-1) individual TDDS, reproducing existing problems or this situation can occur very low the time.
Therefore, in the method according to the individual TDDS of recovery (n) of second embodiment of the invention, the zone of last record is at first determined on the dish, utilizes the positional information in the zone of this last record to recover (n) individual TDDS afterwards.
In order to recover (n) individual TDFL, as shown in figure 10, when dish was loaded in the system, the posting field reproduced (step 1001) in the spare area of dish therefrom obtained the positional information of each replacement cluster and corresponding to the positional information (step 1002) of each defect cluster of this replacement cluster.If use dish structure shown in Figure 4, this can realize so, and the two is stored in the positional information of its replacement cluster and the positional information of corresponding defective cluster in this replacement cluster.This two parts positional information is formed the recent entry among (n) individual TDFL.Detect arbitrary clauses and subclauses (step 1003) then from (n-1) the individual TDFL that is write down.Then from all clauses and subclauses that detected of step 1003 and the clauses and subclauses of having formed contrast from step 1002.If any difference is arranged, different information and all be used to make up (n) individual TDFL (step 1005) so from the clauses and subclauses of (n-1) individual TDFL.That is to say that if there are differences, the clauses and subclauses of having formed from step 1002 are accumulated to the clauses and subclauses of (n-1) individual TDFL with the individual TDFL of reconstruct (n) so.Make is because common current TDFL should comprise the information that dish is gone up all defect district in this way.If do not detect difference in step 1004, system is thought does not so have (n) individual TDFL and processing procedure to finish.
According to system, such situation that may occur directly adopts two parts positional information from replacement cluster not compare step 1004 as (n) individual TDFL exactly.When there not being (n-1) individual TDFL, or the reliability of the data of reproducing from (n-1) individual TDFL is when being suspicious or very low, and this situation may occur.
Therefore, recover in the method for (n) individual TDFL at second embodiment according to the present invention, at first positional information is determined in the zone of the replacement from spare area, obtains recent entry information from this positional information, and utilizes the individual TDFL of this items for information reconstruct (n).
Figure 11 explanation is according to optical data recording/reproducing device of the present invention.This device or other suitable devices or system can be used to realize TDFL that the structure of CD and storage and recovery disc management information are for example above-mentioned and the method for TDDS.
As described in Figure 11, optical data recording/reproducing device comprises: recoding/reproduction unit 10, this element are used for Soviet Union lifted and record CD and from the optical disc replay data; Controller 20 is used for controlling recording/reproduction units 10.All elements of this data recording/reproducing device connection of all working.Controller 20 transmits the instruction that is used to record the zone on the CD or reproduces from the zone on the CD to recoding/reproduction unit 10.This recoding/reproduction unit 10 reproduces data with data recording to dish or from dish according to the instruction of controller 20.Recoding/reproduction unit 10 comprises interface unit 12, pick-up unit 11, data processor 13, servo unit 14, storer 15 and microcomputer 16.Interface unit 12 is connected with for example external unit of controller 20.Pick-up unit 11 direct record data are to CD, or from the optical disc replay data.Data processor 13 receives reproducing signal from pick-up unit 11, recovers preferred signal, and modulation signal makes it be suitable for CD, and transmits signal.Servo unit 14 control pick-up unit 11 are to read signal or signal is write CD from CD.Storer 15 temporary storaging datas and various information comprise required disc management information.The parts of microcomputer 16 controlling recording/reproduction units 10, and carry out or control according to the step of the method for recovery TDFL of the present invention and TDDS.
According to first and second embodiment of the present invention, can carry out or carry out respectively the recovery of (n) individual TDDS and (n) individual TDFL simultaneously at different time.
Industrial usability
From the dish last posting field on information and previous TDDS/TDFL information recover The management information of losing (particularly TDDS and TDFL) stops and takes place by the management letter Losing and the mistake that causes of breath, thus allow more effectively to use dish.
It will be apparent for a person skilled in the art that in the present invention and can make various modifications And variation. Therefore, the invention is intended to covering drops in claims and the equivalent scope thereof Modifications and variations of the present invention.
Claims (38)
1. recording medium comprises:
At least one recording layer; And
Data field on this at least one recording layer, this data area comprises at least one spare area and user data area, and this at least one spare area comprises at least one replacement cluster, and each this at least one replacement cluster comprises the address information of corresponding defective cluster.
2. recording medium as claimed in claim 1, wherein this address information is stored in definite zone of each replacement cluster.
3. recording medium as claimed in claim 2 should determine wherein that the zone was user's control data zone of each replacement cluster.
4. recording medium as claimed in claim 2 should determine wherein that the zone was the address area of each replacement cluster.
5. recording medium as claimed in claim 1, wherein this address information is first physical sector number of defect cluster.
6. recording medium as claimed in claim 1, wherein this defect cluster is arranged at least one of this at least one spare area and user data area.
7. recording medium as claimed in claim 6 further comprises:
Temporary defect management area is used for storing therein the defect management information about defect cluster and replacement cluster, and wherein the address information of this defect cluster is used for the defect management information of reconstruction of lost.
8. recording medium as claimed in claim 1, wherein this recording medium is a Write-once optical disc.
9. recording medium as claimed in claim 8, wherein this Write-once optical disc is the one time write-in-type blue light dish.
10. recording medium comprises:
At least one recording layer; And
Data field on this at least one recording layer, this data field comprises at least one spare area and user data area, this at least one spare area storage replacement data, this replacement data is replaced defective data;
Wherein this replacement data further comprises the address information corresponding to defective data, and this replacement data and defective data are stored by scheduled unit.
11. the method for the management information on the managing recording medium, this recording medium comprises the data field, and this data field comprises at least one spare area and user data area, and this at least one spare area comprises at least one replacement cluster, and this method comprises:
(a) at each in this at least one replacement cluster storage corresponding to the address information of defect cluster.
12. method as claimed in claim 11, wherein in storing step (a), this address information is stored in definite zone of this each replacement cluster.
13. method as claimed in claim 12, wherein in storing step (a), user's control data zone that this definite zone is this each replacement cluster.
14. method as claimed in claim 12, wherein in storing step (a), this definite zone is the address area of this each replacement cluster.
15. method as claimed in claim 11, wherein in storing step (a), this address information is first physical sector number of defect cluster.
16. method as claimed in claim 11, wherein in storing step (a), this defect cluster is arranged at least one of at least one spare area and user data area.
17. method as claimed in claim 16 further comprises:
(c) will store in the temporary defect management area of recording medium about the defect management information of defect cluster and replacement cluster.
18. method as claimed in claim 11 further comprises:
(d) by using the address information of the defect cluster of storage in the storing step (a), recover the defect management information of losing.
19. method as claimed in claim 11, wherein in storing step (a), this recording medium is a Write-once optical disc.
20. method as claimed in claim 19, wherein in storing step (a), this Write-once optical disc is the one time write-in-type blue light dish.
21. the method from recording medium recovery management information, this recording medium comprise the temporary defect management area territory that is used for writing down therein temporary disk (T-disk) definition structure (TDDS) information and temporary defect list (TDFL) information, this method comprises:
From this recording medium, reproduce (n-1) individual TDDS information;
Determine whether the indicated definite zone subsequently, zone of the individual TDDS information of this (n-1) has record;
If should determine that the zone had record, then determine the positional information that is associated with this definite zone; And
Based on this n TDDS information of positional information reconstruct of determining.
22. method as claimed in claim 21, the step that wherein should determine positional information are to be used to from determining that the RF signal in zone carried out.
23. method as claimed in claim 22, wherein in reconstruction step, n TDDS information comprises at least one in following:
The logging mode sign,
First address information of nearest TDFL information,
The FA final address information of the optimum power calibration information of usefulness,
First address information of usable spare cluster, and
First address information of n TDDS information.
24. method as claimed in claim 23, wherein in reconstruction step, n TDDS information further comprises dish user mode information.
25. method as claimed in claim 21, wherein in reproducing step, this recording medium is a Write-once optical disc.
26. method as claimed in claim 25, wherein in reproducing step, this Write-once optical disc is the one time write-in-type blue light dish.
27. method from recording medium recovery management information, this recording medium comprises the temporary defect management area that is used for writing down therein temporary disk (T-disk) definition structure (TDDS) information and temporary defect list (TDFL) information, this recording medium further comprises at least one spare area, this spare area has at least one replacement cluster, each this at least one replacement cluster have be stored in wherein corresponding to the address information of defect cluster and the address information of replacement cluster, this method comprises:
From this recording medium, reproduce (n-1) individual TDFL information;
From the replacement cluster of determining, reproduce the address information of defect cluster and the address information of replacement cluster; And
N TDFL information of address information reconstruct based on this reproduction.
28. method as claimed in claim 27, wherein in reproducing the step of address information, the address information of this defect cluster is to reproduce from this determines definite zone of replacement cluster.
29. method as claimed in claim 28, wherein in the step of reproducing address information, this determines that definite zone of replacement cluster is this user's control data zone of determining replacement cluster.
30. method as claimed in claim 29, wherein in reproducing the step of address information, the address information of this replacement cluster is to reproduce from this determines the address area of replacement cluster.
31. method as claimed in claim 28, wherein in the step of reproducing address information, this determines that definite zone of replacement cluster is this address area of determining replacement cluster.
32. method as claimed in claim 31, wherein in reproducing the step of address information, the address information of this replacement cluster is to reproduce from this determines the address area of replacement cluster.
33. method as claimed in claim 27, wherein the address information of this defect cluster is first physical sector number of defect cluster.
34. method as claimed in claim 27, wherein in the step of reproducing address information, this recording medium is a Write-once optical disc.
35. method as claimed in claim 34, wherein in the step of reproducing address information, this Write-once optical disc is the one time write-in-type blue light dish.
36. an equipment that is used for the management information on the managing recording medium, this recording medium comprises the data field, and this data field comprises at least one spare area and user data area, and this at least one spare area comprises at least one replacement cluster, and this device comprises:
Be used for to the recording medium recording data with from the recoding/reproduction unit of recording medium reproducing data; And
Be used for controlling the control module that this recoding/reproduction unit stores the address information of corresponding defective cluster into each this at least one replacement cluster.
37. the equipment from recording medium recovery management information, this recording medium comprise the temporary defect management area that is used for writing down therein temporary disk (T-disk) definition structure (TDDS) information and temporary defect list (TDFL) information, this device comprises:
Device from the individual TDDS information of this recording medium reproducing (n-1);
Determine whether the indicated definite zone subsequently, zone of the individual TDDS information of this (n-1) has the device of record;
If should determine that the zone had record, then determine and the device that should determine the positional information that the zone is associated; And
Device based on this n TDDS information of determining of positional information reconstruct.
38. equipment from recording medium recovery management information, this recording medium comprises the temporary defect management area that is used for writing down therein temporary disk (T-disk) definition structure (TDDS) information and temporary defect list (TDFL) information, this recording medium further comprises at least one spare area, this spare area has at least one replacement cluster, each this at least one replacement cluster has the address information that is stored in corresponding defective cluster wherein and the address information of replacement cluster, and this equipment comprises:
From this recording medium, reproduce the device of (n-1) individual TDFL information;
The device of the address information of the address information of reproduction defect cluster and replacement cluster from the replacement cluster of determining; And
Device based on n the TDFL information of reproducing of address information reconstruct.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US46900503P | 2003-05-09 | 2003-05-09 | |
| US60/469,005 | 2003-05-09 | ||
| KR1020030033696 | 2003-05-27 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100050777A Division CN101504856B (en) | 2003-05-09 | 2004-05-07 | Method and apparatus for recovering management information from the recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1784738A true CN1784738A (en) | 2006-06-07 |
| CN100547668C CN100547668C (en) | 2009-10-07 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100050777A Active CN101504856B (en) | 2003-05-09 | 2004-05-07 | Method and apparatus for recovering management information from the recording medium |
| CNB2004800125745A Active CN100547668C (en) | 2003-05-09 | 2004-05-07 | Recover the method and apparatus of management information from CD |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100050777A Active CN101504856B (en) | 2003-05-09 | 2004-05-07 | Method and apparatus for recovering management information from the recording medium |
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| Country | Link |
|---|---|
| CN (2) | CN101504856B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116661698A (en) * | 2023-06-16 | 2023-08-29 | 浙江清环智慧科技有限公司 | Management method and device for storage in inspection well drainage monitoring equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG129225A1 (en) * | 1998-04-20 | 2007-02-26 | Samsung Electronics Co Ltd | Optical data storage medium |
| KR100677066B1 (en) * | 1998-10-10 | 2007-02-01 | 삼성전자주식회사 | Disc having spare area for defect management and method for allocating spare area |
-
2004
- 2004-05-07 CN CN2009100050777A patent/CN101504856B/en active Active
- 2004-05-07 CN CNB2004800125745A patent/CN100547668C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116661698A (en) * | 2023-06-16 | 2023-08-29 | 浙江清环智慧科技有限公司 | Management method and device for storage in inspection well drainage monitoring equipment |
| CN116661698B (en) * | 2023-06-16 | 2024-02-13 | 浙江清环智慧科技有限公司 | Management method and device for storage in inspection well drainage monitoring equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100547668C (en) | 2009-10-07 |
| CN101504856A (en) | 2009-08-12 |
| CN101504856B (en) | 2012-09-12 |
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