CN1961356B - Method and apparatus for overwriting data on recording medium - Google Patents
Method and apparatus for overwriting data on recording medium Download PDFInfo
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- CN1961356B CN1961356B CN2005800177049A CN200580017704A CN1961356B CN 1961356 B CN1961356 B CN 1961356B CN 2005800177049 A CN2005800177049 A CN 2005800177049A CN 200580017704 A CN200580017704 A CN 200580017704A CN 1961356 B CN1961356 B CN 1961356B
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/036—Insert-editing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1883—Methods for assignment of alternate areas for defective areas
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1883—Methods for assignment of alternate areas for defective areas
- G11B20/1889—Methods for assignment of alternate areas for defective areas with discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/218—Write-once discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2541—Blu-ray discs; Blue laser DVR discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
Abstract
In an embodiment of the method of over-writing a recording medium, if data for writing on the recording medium is to be written on a recorded portion of a user data area of the recording medium, an unrecorded portion of the recording medium is selected as a replacement portion for recording the data and the data is recorded in the replacement portion.
Description
Technical field
The present invention relates to recording medium and related with it method and apparatus.
Background technology
The novel high-density CD of a kind of for example blue light rewritable disk (BD-RE) is is researched and developed, and it can write down and store high definition audio and video data for a long time.As shown in Figure 1, BD-RE has district, data field and the draw-out area of introducing.Distribute inner spare area (ISA) and outer spare area (OSA) respectively in the front-end and back-end of data field.The record unit of BD-RE is bunch.Consult Fig. 1, during data recording, can detect whether there is defect area in the data field.When detecting defect area, then replace recording operation.For example, will plan to be recorded in data recording in the defect area in spare area (for example inner spare area (ISA)).Then, with detected defect area and the positional information of spare area of replacing record as the management information record with store the defect list (DFL) that is arranged in the disc management area (DMA) of introducing the district into.
In the read operation of these data, will be recorded in data in the spare area by visit DFL and read and reproduce, rather than the data in the defect area are read and reproduce; Prevent that thus the data recording/reproducing mistake from taking place.
Write-once can write down Blu-ray disc (BD-WO) also in research and development.Different with rewritable disk, data can only be recorded once in the whole zone of write-once CD; And can't be in the write-once CD overwrite data physically.Yet need may take place editor or part to revise the data conditions that has write down.For example, for ease of main frame and user's use, the virtual overwrite of data will be desirable.
Disclosure of the Invention
In an embodiment of the method for overwrite recording medium, if write on the recording section of user data area that data on the recording medium will be written in recording medium, then the selected conduct of the non-recorded part of recording medium is used to write down the replacement part of these data, and data are recorded in this replacement part.For example, the non-recorded part of the user data area of recording medium can be selected part as an alternative.In one embodiment, user data area is divided into a plurality of recording areas, and the selected part as an alternative of the non-recorded part of a recording areas.In one embodiment, select step in comprising the recording areas of recording section, non-recorded part to be selected part as an alternative.In another embodiment, select the non-recorded part of the posting field different with the posting field that comprises recording section.In another embodiment, select the spare area separate with user data area.
In another embodiment, the management information in the directorial area that is recorded in recording medium is conducted interviews to determine to write on the recording section of user data area whether data on the recording medium will be written in recording medium.
In another embodiment, in the directorial area of recording medium, write down an entry to indicate the position and the replacement position partly of recording section.
From an embodiment of the method for the user data area reading of data of recording medium, the management information in the directorial area of recording medium is conducted interviews.Management information comprises first second at least one entry of recording section of recording section and user data area of indication user data area.Second recording section comprise and be used for overwrite first data of the data of recording section.When receiving from first during the instruction of recording section reading of data, from second the data of recording section be read.
Embodiments of the invention also comprise the equipment that is configured to carry out the inventive method.
In addition, one embodiment of the present of invention are used for the recording medium of data structure of the data overwrite on the managing recording medium at having.In this embodiment, recording medium comprises the directorial area that is used to store at least one entry.In the user data area of this entry indication recording medium will with the data overwrite recording section, and storage is used for the replacement part of the data of overwrite in the indication user data area.
In another embodiment, first of directorial area storage indication user data area second at least one entry of recording section of recording section and user data area.Here, second recording section comprise and be used for overwrite first data of the data of recording section.
Brief Description Of Drawings
Be included in this providing, and be bonded in the application and constitute its a part of accompanying drawing embodiments of the invention are shown, and be used for explaining principle of the present invention with instructions to further understanding of the present invention.In the accompanying drawings:
The method that Fig. 1 illustrates the structure of general CD-RW and is used for managing defect;
Fig. 2 illustrates the logical overwrite method that is used for the write-once CD according to an embodiment of the invention;
Fig. 3 illustrates an example that carries out logical overwrite on the open journal scope (SRR) in the write-once CD according to an embodiment of the invention;
Fig. 4 illustrates an example that carries out logical overwrite on the closed SRR in the write-once CD according to an embodiment of the invention;
Fig. 5 illustrates according to an embodiment of the invention next write address (NWA) system of selection in the logical overwrite process of the sequential recordng mode (SRM) of write-once CD;
Fig. 6 illustrates used journal range information (SRRI) structure of sequential recordng mode according to an embodiment of the invention;
Fig. 7 illustrates the used logical overwrite method of recorded at random pattern (RRM) according to an embodiment of the invention;
Fig. 8 illustrates the block scheme of optical recording according to an embodiment of the invention and reproducer.
Implement best mode of the present invention
Below will be in detail with reference to example embodiment of the present invention, these example embodiment are shown in the drawings.In the case of any possible, will in institute's drawings attached, use identical reference number to represent same or analogous part.
Fig. 2 illustrates the logical overwrite method that is used for the write-once high density compact disc according to an embodiment of the invention.As shown in the figure, the write-once high density compact disc comprises introducing district, data field and draw-out area.The data field comprises inner spare area (ISA), outer spare area (OSA) and user data area.Introducing the district is used as record multiple being used for data is recorded in CD/from the zone of the various management information of optical disc replay data.Introduce the district and can be provided with temporary disk (T-disk) directorial area (TDMA), it is the zone of the management information of recording defect management information and recording disk.Also can be defective that CD may frequently take place between the operating period and in the spare area, distribute independent additional TDMA for upgrading records management information.
In having the write-once CD of said structure, data recording can be categorized as two types: sequential recordng mode (SRM) type and recorded at random pattern (RRM) type.In the SRM type, for ease of data are recorded on the CD, the user data area that has wherein write down actual user data is divided into a plurality of continuous posting fields that are used for record data.Each is called as a journal scope (SRR) a plurality of continuous recordings district that is divided.Data are recorded among the SRR can write down at the next one (maybe can write) non-write down bunch to go up carry out.But the address that next recordable non-among the SRR write down bunch is called as next write address (NWA).More particularly, in SRR, back to back not recording areas becomes NWA after the recording areas, and the record of data is from NWA.Therefore, when beginning to carry out the journal of data from NWA, NWA can dynamically increase according to the record of data.
In above-mentioned SRM type, the order of writing (or overwrite) data in the part in recording areas or the SRR (SRR#n) can provide (or making) by user or main frame.In this case, because the characteristic of write-once CD, the physical write of data can only be carried out once, and therefore to write (or record) be infeasible to the data on recording areas.In other words, can not physically carry out the overwrite of data.All embodiment according to the present invention, in can writing down the SRM type of high density compact disc, when providing (or making) request with the overwrite order of data overwrite on recording areas, write on data on the recording section be changed to NWA from same SRR, from the NWA opening entry of another SRR, or be recorded in the spare area.This is called as logical overwrite (LOW).
For example, as shown in Figure 2, write (or record) when order is sent out as the data B in a recorded data A district in the SRR (SRR#n), be recorded in the data B in the data A district or be recorded in next writable area of the SRR that comprises data A district, be among the NWA, or be recorded in the spare area (for example OSA).When among the NWA that data is recorded in the SRR that comprises data A district, become NWA ' from next writable area of SRR (SRR#n).After carrying out the replacement record of data, as mentioned above, the information relevant with the position of the district that wants the overwrite data (being data A district) and replacement recording areas (being the data B district of user data area or the data B district of spare area) is recorded among the TDMA as the LOW entry.The LOW entry mainly is divided into two types: heavy allocated defect (RAD) type and heavy continuously allocated defect (CRD) type.
The LOW entry of RAD type comprises the information about the logical overwrite of carrying out in single bunch.First bunch first physical sector number (PSN) in zone that each entry comprises first bunch first physical sector number (PSN) in the zone of having carried out logical overwrite and carried out the replacement record of logical overwrite.On the other hand, the LOW entry of CRD type comprises the information relevant with the logical overwrite of carrying out and therefore uses two entries in a plurality of successive clusters.More particularly, first bunch the PSN comprising a PSN of first bunch who has carried out logical overwrite and carried out the replacement record of logical overwrite of in these two entries.The most last bunch the PSN that another entry comprises a PSN of the most last bunch who has carried out logical overwrite and carried out the replacement record of logical overwrite.
Therefore, when as mentioned above through the CD of logical overwrite after process in when reproduced, the CD drive reference record in TDMA entry-information and identify the logical overwrite district and replace the information of recording areas, can reproduce thus and replace record data B district, rather than data A district.In the SRM type, the replacement of actuating logic overwrite record is preferable in the NWA of user data area rather than spare area.More particularly, in CD-R, as a kind of defect management method, the spare area also is used to replace the recording defect zone.Therefore, when the spare area was used to the replacement record of logical overwrite, existence must be guaranteed the spare area of enough scopes in advance during the CD initialization, and this spare area purposes is indefinite.Therefore, for fear of these problems, the replacement of actuating logic overwrite record is preferable in the NWA of user data area.When in the user data area that is using the SRM type during actuating logic overwrite, can be at SRR open and SRR actuating logic overwrite when sealing.
Fig. 3 illustrates an example that carries out logical overwrite on the open SRR in the write-once CD according to an embodiment of the invention.In SRM, but open SRR is meant the non-SRR that has write down SRR or also left some recording areas (being non-recorded part).Open SRR has NWA.But closed SRR is meant and no longer leaves among the SRR or have a recording areas, even or refer to exist not recording areas or part, but owing to no longer be allowed to, thereby change into the SRR of closed state from the request of user or main frame.Therefore, there is not NWA for closed SRR.Consult Fig. 3, when the overwrite of the recording areas order that receives open SRR, then can in any open SRR, carry out and replace record.In other words, when the order that receives open SRR (SRR#n) at recorded data A district loam cake write data B, be recorded in the data B in the data A district or replace record, or replace record from the NWA of any other open SRR from the NWA of the SRR that comprises data A district.
Fig. 4 illustrates an example that carries out logical overwrite on the closed SRR in the write-once CD according to an embodiment of the invention.Consult Fig. 4, when the write order that is provided (or making) by main frame is overwrite order to the recording areas among the closed SRR,, replace record so in open SRR, carry out because closed SRR does not comprise NWA.At this, when the loam cake of recording areas write data, also can in the spare area, carry out and replace record at closed SRR.More particularly, replacement is write down from the NWA of open SRR or is carried out spare areas such as for example OSA.For closed SRR, can in the spare area, carry out especially and replace record, rather than in user data area.
As mentioned above, the logical overwrite in the write-once high density compact disc among the SRM is carried out at the NWA place.In one embodiment, can distribute maximum 16 SRR, and correspondingly comprise maximum 16 NWA.Below in conjunction with Fig. 5 the method for selecting NWA according to an embodiment of the invention is elaborated.
Fig. 5 illustrates according to an embodiment of the invention with the NWA system of selection in the logical overwrite process of the sequential recordng mode of write-once CD.Consult Fig. 5, can in the user data area of write-once high density compact disc, can distribute a plurality of journal scopes (SRR).In addition, can distribute maximum 16 SRR in this embodiment.Each open SRR comprises the NWA that indicates next writable area.
According to this embodiment,,, in the open SRR that comprises the data of wanting overwrite, replace record when write order request during in recording areas loam cake write data for a plurality of NWA that may exist.More particularly, when having NWA in the SRR (SRR#n) that it is provided the order of (or making) data overwrite, replace record at the NWA place of this open SRR (SRR#n).If be disabled to its SRR that provides the overwrite order of (or making), for example,, open SRR is closed SRR if becoming (or changing), then carry out and replace record at the NWA place of adjacent S RR.
Therefore, when the SRR of want overwrite (SRR#n) is closed SRR, in the last open SRR of this SRR (SRR#n) (SRR#n-1) or next open SRR (SRR#n+1), carries out and replace record.In addition, the SRR zone also may because of non-recorded part do not accommodate be not enough to replace the record unavailable.In other words, this SRR (SRR#n) or adjacent S RR (SRR#n+1 or SRR#n-1) but the residue recording areas may be not enough, thereby can't once carry out the replacement record.
In one embodiment of the invention, but be not enough to carry out when replacing record when the residue recording areas of SRR or adjacent S RR, then in the SRR that can write down (maybe can write) district from nearest the having enough of SRR#n, carry out and replace record.When carrying out data replacement record as described above, can guarantee to replace the continuity of recording areas.Can prevent to write down overwrite district and heavy allocated defect (RAD) entry of the address of replacing recording areas or the waste of heavy allocated defect (CRD) entry continuously in addition.
Simultaneously, in another embodiment of the present invention, when but the residue recording areas of this SRR or adjacent S RR is not enough to carry out the replacement record, then can in the zone of this deficiency, carry out the replacement record of replacing record and in next adjacent open SRR, proceeding remainder data.When using said method, can there be a plurality of RAD or CRD entry replacement recorded information with the indication logical overwrite.In addition, in further embodiment of this invention, the replacement of logical overwrite record is carried out since the first open SRR order.More particularly, no matter logical overwrite is related with which SRR, all carries out and replace record since the first open SRR.
When CD drive is being carried out when replacing record on the adjacent S RR or since the first open SRR, can obtain information by the journal range information (SRRI) of reference record in TDMA about the first open SRR.This will be elaborated in conjunction with Fig. 6.Fig. 6 illustrates SRRI structure according to an embodiment of the invention.Consult Fig. 6, the SRRI that is recorded among the TDMA comprises " SRRI head " field, " tabulation of SRR entry " field and " SRRI full stop " field." SRRI head " field comprises " SRRI identifier=' ' SR ' " field, " SRR entry number " field, " open SRR numbering " field and " open SRR numbered list " field.Here, the SRR entry numbering of describing in the process in the back is recorded in " SRR entry numbering " field.Open SRR numbering is recorded in " open SRR numbered list field ", and the numbered list of open SRR is recorded in " open SRR numbered list " field.In " tabulation of SRR entry " field, write down the tabulation of open SRR numbering.At this, the numbered list of maximum 16 assignable open SRR is recorded.When the numbering of the open SRR that is distributed less than ' 16 ' time, then " 0 " is recorded in and does not use in the open SRR field.The SRR numbering is arranged with (or decline) order that successively decreases.Therefore, when the actuating logic overwrite, CD drive reference " open SRR numbered list " field is to search for and to seek the SRR of replaceable record.More particularly, with reference to Fig. 6, when actuating logic overwrite in the recording areas of the 9th SRR (SRR#9), can on the 9th SRR, replace record data, or can be at the SRR of adjacent (promptly nearest), just the 8th SRR or the 10th SRR go up to carry out and replace record, maybe can carry out since the 1st SRR and replace record.
The tabulation of SRR entry is recorded in " tabulation of SRR entry " field of SRRI.Here, the SRR entry is by order assignment and from " 1 " opening entry.At this, in a SRR entry, distribute 8 bytes, wherein write down information specific.The SRR entry comprises " the initial PSN of SRR#n " field, " session begins " and " LRA among the SRR#n " field.More particularly, the physical sector number (PSN) of the reference position of SRR#n (or zone) is assigned with and is recorded in " the initial PSN of SRR#n " field with 28 size." session begins " field size is 1, and the most last recording areas (LRA) of SRR#n to be recorded in size be in " LRA among the SRR#n " field of 28.
Therefore, CD drive can be included in the positional information that information in the SRR entry identifies the recording areas of corresponding SRR by use.Can determine the NWA of next writable area of indication by using " LRA among the SRR#n " field information.That is, by the physical sector number (PSN) of service recorder in " LRA among the SRR#n ", first sector of following cluster becomes NWA.If ' 0 ' has been recorded in " LRA among the SRR#n " field, then this indicates these data not to be recorded among the SRR#n.Therefore, the sector that is recorded in " the initial PSN of SRR#n " field becomes NWA.
As mentioned above, broadly be divided into SRM type and RRM type at the record that can write down data in the high density compact disc.In the RRM type, on all non-write down bunch, carry out the record of data randomly.In above-mentioned RRM type, about the message reflection of in the user data area bunch recording status in space bit map (SBM).More particularly, SBM comprises all bunch of a plurality of positions of mating one by one with user data area, with the recording status of indication respective regions.Below in conjunction with Fig. 7 the method for the logical overwrite data in the RRM type is described.
Fig. 7 illustrates the logical overwrite method in the RRM type of CD-R according to an embodiment of the invention.Consult Fig. 7, in the RRM type, when sending the overwrite order be used in recording areas loam cake write data from main frame, plan to be recorded in data in the recording areas and be replaced and for example be recorded in the spare area.According to the characteristic of RRM type and since data by recorded at random user data area bunch in, but therefore in user data area the replacement record energy efficiency of actuating logic overwrite not high.Therefore in the RRM type, the data replacement of logical overwrite can be recorded in such as in the spare areas such as OSA.At this, also can be with the replacement district of spare area as defect area, and the size that in the CD initialization procedure, should sufficiently specify and distribute the spare area.
Fig. 8 illustrates the block scheme according to optical recording of the present invention and reproducer.Consult Fig. 8, optical recording and/or reproducer comprise: the data recording/reproducing device 10 that is used for executive logging/reproduction on CD; And the main frame or the controller 20 (here, data recording/reproducing device 10 often is called as " CD drive ", and these two terms all will be used for explanation of the present invention) that are used for controlling recording/transcriber 10.
Basically, in above-mentioned optical recording and reproducer, main frame 20 provides to data recording/reproducing device 10 and is used to write to or reproduces from the writing or reproduce order of CD specific region, and that data recording/reproducing device 10 responses are carried out from the order of main frame 20 is right/and the recoding/reproduction of specific region from the CD.Data recording/reproducing device 10 comprises: interface unit 12 is used for for example carrying out data with main frame 20 and waits with the order exchange and communicate by letter; Pickup unit 11, be used for directly to/from CD Writing/Reading data; Data processor 13 is used for closing the signal value that needs from pickup unit 11 received signals and recovery, or signal to be recorded is modulated into the signal that can write on the CD; Servo unit 14 is used to control pickup unit 11 and reads signal exactly from CD, or exactly signal write on the CD; Storer 15 is used for temporary management information and the data of comprising in interior various information; And microcomputer 16, be used for the each several part of controlling recording/transcriber 10.
To the process steps that in this optical recording and/or the reproducer data is recorded in an embodiment of the method on the CD-R be described below.In case CD-R is inserted in optical recording and/or the reproducer, management information promptly is read out and is deposited in the storer 15 of data recording/reproducing device 10 from CD.Here, if the user need write on the specific region of CD, then the write order of main frame 20 these requirements of response indication treats that with one group write data offers data recording/reproducing device 10 with the information relevant with desired writing position.
Whether the microcomputer 16 in the data recording/reproducing device 10 receives write orders and determines (i) main frame 20 whether want the disc area of write data be defect area and/or (ii) should be recorded in the zone based on being stored in management information in the storer 15.Then, microcomputer 16 according to from the write order of main frame 20 neither defect area carry out on the zone of recording areas.For example, if should the zone in closed SSR or start address less than the LRA of SSR to be written, determine that then this zone is for having write down.
Carrying out as described above under the situation that data write, in the time will carrying out overwrite according to user command, the data that write down (or writing) to overlapping (or overwrite) district are replaced in another zone that is recorded in the data field, for example user data area or spare area, as top in conjunction with as described in one of embodiment of the invention.Then, the corresponding information that is included in the RAD that creates in this process and CRD entry is recorded among the TDMA that introduces in the district.For this reason, positional information and data that microcomputer 16 will be replaced the zone of record according to Host Command offer servo unit 14 and data processor 13, close the position that needs by pickup unit 11 on CD thus and finish record or replace record.
To the method according to the data that write down as described above from optical disc replay of the present invention be elaborated below.When the write-once CD that wherein records data was inserted in optical recording and/or the reproducer, management information was read and is deposited in the storer 15 of data recording/reproducing device 10 from CD, to feed to/to use during from the optical disc recording/reproducing data.
Here, if the user wants to read from the specific region of CD (or reproduction) data, then the reading order of main frame 20 these requirements of response indication will offer data recording/reproducing device 10 about closing the information that need read the position.Microcomputer 16 in the data recording/reproducing device 10 receives read commands, and use and management information is determined to want therefrom by main frame 20 whether the disc area of reading of data is the zone that has been replaced.If like this, then microcomputer 16 determines to replace the position in district from management information.Yet, not carry out under the situation of replacing record, microcomputer 16 reads the data in (or reproduction) indicated district and the information that is read is sent to main frame 20.If record (for example RAD/CRD type) is replaced in executed, then microcomputer 16 sends to main frame 20 from determined replacement district's reading of data and with the information that is read.
As mentioned above, have the following advantages at the method and apparatus that can write down high density compact disc loam cake write data according to of the present invention.By the high efficiency method according to the overwrite data of the logging mode of write-once high density compact disc is provided, when the loam cake of the recording areas write data in CD, can manage and reproduce the write-once high density compact disc more efficiently.
Industrial applicibility
Although with regard to a limited number of embodiment the present invention is disclosed, be derived from many modifications and changes of the present invention yet benefit from of the present disclosure it will be recognized by those skilled in the art. For example, although in several examples, describe for blue light write-once CD, yet the present invention be not limited to this write-once compact disk standards, be not limited to write-once recording medium or CD as recording medium. Be intended to make all these class modifications and changes all to drop in the spirit and scope of the present invention.
Claims (23)
1. method in write-once recording medium loam cake write data, described recording medium comprises temporary disk (T-disk) directorial area, spare area and is divided into the user data area of a plurality of journal scopes, said method comprising the steps of:
Determine whether will be written on the recording areas of journal scope in the user data area according to the data of write order, but but each journal scope is to have the open ended sequential recording interval of record position and do not have in the sealing journal scope of record position one;
To be written on the recording areas if determine described data according to write order, then obtain the tabulation of the open ended sequential recording interval that writes down in the temporary disk (T-disk) directorial area, and select the open ended sequential recording interval to be used to write down data according to write order; And
But from the record position opening entry of the selecteed open ended sequential recording interval data according to write order, but the record position of wherein selecteed open ended sequential recording interval is positioned at the section start that does not write down record cell of being followed behind the last recording address of selecteed open ended sequential recording interval.
2. the method for claim 1 is characterized in that, each record cell is one bunch, and the section start that does not write down record cell is first sector of not writing down in the record cell.
3. method as claimed in claim 1 or 2, it is characterized in that, if making the journal scope of write order is the open ended sequential recording interval, then described selection step selects described journal scope to be used to write down data according to write order as the open ended sequential recording interval; And first bunch the section start that described recording step is followed behind the described last recording address of the journal scope of making write order begins the data of journal according to write order.
4. the method for claim 1 is characterized in that, is sealing journal scope if make the journal scope of write order, and then described selection step is selected another open ended sequential recording interval.
5. method as claimed in claim 1 or 2 is characterized in that, selected open ended sequential recording interval is from the nearest open ended sequential recording interval of the journal scope of making write order.
6. the method for claim 1 is characterized in that, be not enough to store described data according to write order if make the journal scope of write order, but then described selection step selects to have another open ended sequential recording interval of enough recording areas.
7. method as claimed in claim 6 is characterized in that, selects the first open ended sequential recording interval in a plurality of open ended sequential recording intervals of described selection step from user data area.
8. as claim 1, each described method in 2,4,6 and 7 is characterized in that management information in the described temporary disk (T-disk) directorial area is used to indicate the initial sector of each journal scope and the last recording address of each journal scope.
9. as claim 1,2,4, each described method in 6 and 7, it is characterized in that if the journal scope relevant with write order is sealing journal scope, then described determining step is determined will be written on the recording areas of journal scope according to the data of write order.
10. as claim 1,2,4, each described method in 6 and 7, it is characterized in that, if be used to write down according to the start address of the described data of the write order last recording address less than the journal scope, then described determining step determines that the data according to write order will be written on the recording areas.
11. as claim 1, each described method in 2,4,6 and 7 is characterized in that, also comprises:
In the temporary disk (T-disk) directorial area of described recording medium, write down entry-information, but the start address of the record position of the start address of the described recording areas of described entry-information indication and described selecteed open ended sequential recording interval.
12. the equipment in write-once recording medium loam cake write data, described recording medium comprise temporary disk (T-disk) directorial area, spare area and are divided into the user data area of a plurality of journal scopes that described equipment comprises:
Interface is configured to carry out and the communicating by letter of main frame;
Pick-up, be configured to directly to/from recording medium Writing/Reading data;
Data processor is configured to receive and restoring signal from pick-up, or signal to be recorded is modulated into the signal that can write on the recording medium;
Servomechanism, be configured to control pick-up from/to recording medium read/write signal exactly;
Storer is configured to temporary storage management information and data; And
Microcomputer, be configured to control described interface, pick-up, data processor, servomechanism and storer, and be configured to determine whether the data according to write order will be written on the recording areas of journal scope in the user data area, but but each journal scope is to have the open ended sequential recording interval of record position and do not have in the sealing journal scope of record position one; And if be configured to determine that described data according to write order will be written on the recording areas, then obtain the tabulation of the open ended sequential recording interval that writes down in the temporary disk (T-disk) directorial area, and select the open ended sequential recording interval to be used to write down data according to write order; But and be configured to control described equipment from the record position opening entry of the selecteed open ended sequential recording interval data according to write order, but the record position of wherein selecteed open ended sequential recording interval is positioned at the section start that does not write down record cell of being followed behind the last recording address of selecteed open ended sequential recording interval.
13. equipment as claimed in claim 12 is characterized in that, each record cell is one bunch, and the section start that does not write down record cell is first sector of not writing down in the record cell.
14. as claim 12 or 13 described equipment, it is characterized in that, if making the journal scope of write order is the open ended sequential recording interval, then described microcomputer is configured to select described journal scope to be used to write down data according to write order as the open ended sequential recording interval; And first bunch the section start that described equipment is configured to be followed behind the described last recording address of the journal scope of making write order begins the data of journal according to write order.
15. equipment as claimed in claim 12 is characterized in that, is sealing journal scope if make the journal scope of write order, then described microcomputer is configured to select another open ended sequential recording interval.
16., it is characterized in that selected open ended sequential recording interval is from the nearest open ended sequential recording interval of the journal scope of making write order as claim 12 or 13 described equipment.
17. equipment as claimed in claim 12 is characterized in that, be not enough to store described data according to write order if make the journal scope of write order, but then described microcomputer is configured to select to have another open ended sequential recording interval of enough recording areas.
18. equipment as claimed in claim 17 is characterized in that, described microcomputer is configured to select in a plurality of open ended sequential recording intervals from user data area the first open ended sequential recording interval.
19. as claim 12, each described equipment in 13,15,17 and 18 is characterized in that, management information in the described temporary disk (T-disk) directorial area is used to indicate the initial sector of each journal scope and the last recording address of each journal scope.
20. as claim 12,13,15, each described equipment in 17 and 18, it is characterized in that, be sealing journal scope if make the journal scope of write order, and then described microcomputer is configured to determine that the data according to write order will be written on the recording areas of journal scope.
21. as claim 12,13,15, each described equipment in 17 and 18, it is characterized in that, if be used to write down according to the start address of the described data of the write order last recording address less than the journal scope, then described microcomputer is configured to determine that the data according to write order will be written on the recording areas.
22. as claim 12,13,15, each described equipment in 17 and 18, it is characterized in that, described equipment is configured to write down entry-information in the temporary disk (T-disk) directorial area of described recording medium, but the start address of the record position of the start address of the described recording areas of described entry-information indication and described selecteed open ended sequential recording interval.
23. as claim 12, each described equipment in 13,15,17 and 18 is characterized in that, also comprises:
Main frame, be configured to provide write order to described microcomputer, but wherein said microcomputer is configured to provide about the information of the record position of selecteed open ended sequential recording interval and according to the data of write order to servomechanism and data processor, but makes pick-up to be recorded on the record position of selecteed open ended sequential recording interval according to the data of write order.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58171704P | 2004-06-23 | 2004-06-23 | |
| US60/581,717 | 2004-06-23 | ||
| KR1020040085288 | 2004-10-25 | ||
| KR1020040085288A KR101014727B1 (en) | 2004-06-23 | 2004-10-25 | Method and Apparatus for managing a overwrite in Optical write once disc |
| KR10-2004-0085288 | 2004-10-25 | ||
| PCT/KR2005/001934 WO2006001632A2 (en) | 2004-06-23 | 2005-06-22 | Method and apparatus for overwriting data on recording-medium and the recording medium |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100896368A Division CN101042890B (en) | 2004-06-23 | 2005-06-22 | Method and apparatus for overwriting data on recording-medium and the recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1961356A CN1961356A (en) | 2007-05-09 |
| CN1961356B true CN1961356B (en) | 2011-06-08 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100896368A Active CN101042890B (en) | 2004-06-23 | 2005-06-22 | Method and apparatus for overwriting data on recording-medium and the recording medium |
| CN2005800177049A Expired - Fee Related CN1961356B (en) | 2004-06-23 | 2005-06-22 | Method and apparatus for overwriting data on recording medium |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100896368A Active CN101042890B (en) | 2004-06-23 | 2005-06-22 | Method and apparatus for overwriting data on recording-medium and the recording medium |
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| Country | Link |
|---|---|
| CN (2) | CN101042890B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0477503A2 (en) * | 1990-09-28 | 1992-04-01 | Fuji Photo Film Co., Ltd. | Method of recording data in memory card having eeprom and memory card system using the same |
-
2005
- 2005-06-22 CN CN2007100896368A patent/CN101042890B/en active Active
- 2005-06-22 CN CN2005800177049A patent/CN1961356B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0477503A2 (en) * | 1990-09-28 | 1992-04-01 | Fuji Photo Film Co., Ltd. | Method of recording data in memory card having eeprom and memory card system using the same |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-231053A 1997.09.05 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1961356A (en) | 2007-05-09 |
| CN101042890A (en) | 2007-09-26 |
| CN101042890B (en) | 2011-10-12 |
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