CN1745427B - Method and apparatus for managing overwrite on an optical disc write once - Google Patents
Method and apparatus for managing overwrite on an optical disc write once Download PDFInfo
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- CN1745427B CN1745427B CN2003801094129A CN200380109412A CN1745427B CN 1745427 B CN1745427 B CN 1745427B CN 2003801094129 A CN2003801094129 A CN 2003801094129A CN 200380109412 A CN200380109412 A CN 200380109412A CN 1745427 B CN1745427 B CN 1745427B
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Abstract
A method of managing overwrite and a method of recording management information on an optical disc write once can make it possible to perform a logical overwrite on the disc and thus heighten the use efficiency of the disc. The method includes replacement-recording data which is requested to be overwritten in a specified area of the disc where recording is completed in another data area physically separated from the specified area in the disc, and producing and recording management information for reproducing the physically replacement-recorded data.
Description
Technical field
The present invention relates to manage the method and apparatus of the rewriting on the optical disc write once.
Background technology
Recently, expectation exploitation and produce new HD-DVD (high-density digital general dish), on it can with high-quality and high quantity write and stored video data and voice data BD-RE (blu-ray disc rewritable) for example
As shown in Figure 1, BD-RE is divided into LIA (introducing the district), data field and LOA (draw-out area).Stem and afterbody in the data field are separately arranged ISA (inner spare area) and OSA (outer spare area).
On BD-RE, with corresponding bunch of specific record cell be records data in units, and can be repeatedly with data recording in the specific region of BD-RE, this is known as physical overwrite.At this moment, as shown in Figure 1, it detects whether there is any defect area in the data field during record data.If detect defect area, then carry out a series of replacement one recording operation, be used for carrying out the step of replacement record of the data of defect area (as ISA) record.In addition, the positional information of replacing record in the positional information of defect area and the spare area is recorded and is stored as in the defect list among the DMA (defect management) that reads in the district, as management information.
Simultaneously, the standard of BD-WO (blue light write-once discs) is discussed in relevant intercompany recently, and owing to BD-WO can only write down once on the overall optical disk area, so different with BD-RE, physically can not on BD-WO, rewrite.
But, must on BD-WO, rewrite so that the data of reference record are revised the part of records data, perhaps facilitate to user or main frame, therefore this is pressed for effective scheme.
Summary of the invention
Therefore, the present invention is directed to a kind of method and apparatus that is used to manage the rewriting on the optical disc write once, it has been avoided substantially because the restriction of correlation technique and one or more problems that shortcoming causes.
The object of the present invention is to provide a kind of method and apparatus that is used to manage the rewriting on optical disc write once, it can keep the continuity of user data area after carrying out physical overwrite on the CD and carrying out this physical overwrite.
Attendant advantages of the present invention, purpose and characteristics are set forth part in the following description, and part will be by perhaps becoming apparent by implementing the present invention in those of ordinary skills are below examination.Can realize and obtain purpose of the present invention and other advantage by the structure that particularly points out in following description and claims and the accompanying drawing.
In order to realize these purposes and other advantage, according to purpose of the present invention, as extensively embodying here and describing, a kind of management comprises in the method for the rewriting on the optical disc write once: replace record from the back of the user data area of CD and be requested to rewrite data in the specific region of the CD of finishing record; But and in the directorial area of CD record according to the information about the last record position of user data area of replacing that recording operation changes.
According to another aspect of the present invention, a kind of management comprises in the method for the rewriting on the optical disc write once: replace record from the preceding zone of the outer spare area (OSA) of CD and be requested to rewrite data in the specific region of the CD of finishing record; The OSA expansion is reached the size of replacing posting field; But and the information that record changes according to the expansion of OSA in the directorial area of CD about the last record position of user data area.
According to a further aspect of the invention, the method for the rewriting of a kind of management on optical disc write once comprises: replace in the outer spare area (OSA) of CD and write down the data that are requested to rewrite in the specific region of the CD of finishing record; Consider the size of replacing recording areas, determine whether to expand OSA; And but the information about the last record position of user data area that changes judged in record according to the expansion of OSA in the directorial area of CD.
In another aspect of the present invention, a kind of management comprises in the method with the rewriting on the optical disc write once of a plurality of recording layers: optionally replace in the user data area of each recording layer of CD and write down the data that are requested to rewrite in the specific region of the CD of finishing record; But and in the directorial area of CD record according to the information about the last record position of the user data area of each recording layer of replacing that recording operation changes.
In another aspect of the present invention, the method for the rewriting of a kind of management on optical disc write once comprises: receive and ask in the record order of the enterprising line item in the specific region of CD; Judge that this specific region is that the zone that has been recorded also is non-posting field; And if judge that this specific region is the zone that has been recorded, then data are replaced and are recorded in another zone of user data area, even so that after replacing recording operation, can guarantee the continuity of user data area.
Of the present invention aspect another in, a kind of device that is used for the recoding/reproduction optical disc write once comprises: controller is used to transmit the record order that is used to ask at the enterprising line item in the specific region of CD; And pen recorder, be used to judge that this specific region is that the zone that has been recorded also is non-posting field, if and to judge this specific region be the zone that has been recorded, then the data replacement is recorded in another zone of user data area, even so that after replacing recording operation, also can guarantee the continuity of user data area.
Description of drawings
Comprise accompanying drawing so that further understanding of the present invention to be provided, and its combination and constitute the application's a part, its show embodiments of the invention and with describe one and be used from explanation principle of the present invention.In the accompanying drawing:
Fig. 1 schematically illustrates the BD-RE structure as CD-RW according to correlation technique;
Fig. 2 has illustrated according to the BD-WO structure as optical disc write once of the present invention;
Fig. 3 A and 3B have illustrated the method that management rewrites on optical disc write once in accordance with another embodiment of the present invention;
Figure 4 and 5 have illustrated the method that management rewrites on optical disc write once according to other embodiments of the present invention;
Fig. 6 has illustrated the method that management rewrites on optical disc write once according to still another embodiment of the invention;
Fig. 7 and 8 has illustrated the relevant management information of method that rewrites with management on optical disc write once according to the present invention;
Fig. 9 has illustrated according to the present invention as the BD-WO structure of double deck type optical disc write once;
Figure 10 has illustrated according to an embodiment of the invention and has managed the method that rewrites on the double deck type optical disc write once;
Figure 11 has illustrated the method that management rewrites on the double deck type optical disc write once in accordance with another embodiment of the present invention;
Figure 12 and 13 has illustrated the method that management rewrites on the double deck type optical disc write once according to other embodiments of the present invention;
Figure 14 and 15 has illustrated the relevant management information of method that rewrites with management on the double deck type optical disc write once according to the present invention; And
Figure 16 has illustrated the device that is used for the recoding/reproduction optical disc write once according to the present invention.
Embodiment
Now will be in detail with reference to the method that management rewrites on optical disc write once of preferred embodiment according to the present invention, the example is shown in the drawings.In addition, in description of the invention, select widely used general terms.But, in special circumstances, also use the term of judging selection with the applicant, but their meaning will be described in the appropriate section of describing in detail.Therefore, should be understood that the meaning of available term but not the present invention grasped in term itself.
The present invention can even rewrite on optical disc write once.Usually, term " rewriting " is illustrated in the duplicate record on the specific region on the CD-RW.In other words, term " rewriting " is the inherent characteristic of CD-RW, and therefore it has been generally acknowledged that and can not rewrite on optical disc write once.
But, the invention enables and may logically rewrite, keep the physical characteristics of optical disc write once simultaneously, promptly the single write diagnostics is held.Particularly, by keep the continuity of user data area after physical overwrite operation, this has promoted the service efficiency of CD.Now, different embodiments of the invention will be described, as an example with BD-WO.
Fig. 2 has illustrated according to the present invention as the BD-WO structure of optical disc write once.BD-WO (blue light write-once discs) comprises LIA (introducing the district), data field and LOA (draw-out area).In the stem and afterbody of data field, divide be arranged ISA (inner spare area) and OSA (outer spare area), and the user data area of physical record data is between ISA and OSA.Provide LSN (logic area segment number) to user data area, and user or main frame transmit record order with reference to LSN.Pen recorder converts LSN to PSN (physical sector number), and the positional information in its actual expression CD is with the executive logging order.
In addition, in this dish, provide TDMA (temporary defect management area).TDFL (temporary defect list), TDDS (interim disc definition structure), SBM (space bit map) are recorded among the TDMA as management information.According to the present invention, in replacing the process that writes down the back records management information, be recorded in TDFL, and the successional LSN of user data area is recorded among the TDDS behind the expression replacement record about original area and the positional information of replacing posting field.
In addition, by distribute a bit (this is the smallest record unit) for each bunch, if corresponding bunch is the zone of record, the SBM information representation " 1b " of then writing down among the TDMA, and if this bunch be non-posting field, then represent " 0b ", vice versa.Therefore, by reading SBM information, can understand the zone and the non-posting field that where there are record in the CD easily.After reception is used to write down the users of specific area record order, by SBM information, data recording/reproducing device can be judged the record/non-recording status of respective regions, if and the specific region is a posting field, then carry out the replacement record of the data in another zone of data field, so that logical overwrite becomes possibility.
For specific renewal timing, with the least unit of cluster, upgrade the management information that writes down among the TDMA, and in optical disc write once, the zone of the management information of record such as TDMA is indispensable such as TDFL, TDDS, SBM etc.
Among Fig. 2, if the zone of having write down is present in the data field, because the characteristic of optical disc write once, " rewriting " in the respective regions is unallowed physically.But, if the record order request of user or main frame in A-B zone shown in Figure 2 (for example, the zone of having write down) enterprising line item, then the present invention makes data recording/reproducing device itself carry out the replacement record of the data in another zone of data field.Therefore, but user or main frame command record, and no matter whether the specific region of CD is recorded, so the user can use optical disc write once just as CD-RW.This is known as logical overwrite (LOW), to be different from physical overwrite.
In addition, during record order on carrying out A-B zone shown in Figure 2, because it is the zone of having write down, rewriting can not be carried out on respective regions.But, can carry out record order in the following manner: data are replaced one and are recorded in the data field, and particularly guarantee in the position of the successional data field of user data area, and directorial area is recorded among the TDMA of CD accordingly, to finish the execution of record order.
Fig. 3 A shows the method for managing the rewriting on the optical disc write once according to the present invention.The zone that the replacement record request rewrites in another zone of data field (for example, the A-B zone) in the data when after replacing record, keeping the continuity of user data area, replace record data from the front portion of OSA, and after replacing record, but the last record position of change user data area.Like this, before replacing record, user data area has and the corresponding last LSN information in the lucky forward position of OSA, but after replacing record, new last LSN is provided for user data area.Like this, therefore user or main frame have got rid of the zone of having write down based on the LSN command record from LSN.As a result, keep the continuity of user data area usually, and in the process of carrying out video disc recording, provide the handled easily of data recording/reproducing device (numeral among Figure 16 " 10 ").
Fig. 3 B is that the part of replacing recording areas is amplified diagrammatic sketch (for example, a-b district).This is replaced record and carries out from old last LSN position, and after the replacement record is finished, but the last LSN in user data district is provided to the lucky front portion of " a " position, will carry out from new last LSN thereby rewrite next time.
As mentioned above, should be recorded in optional position in the CD managing district according to the information of the variation of replacing the last LSN behind the record, and in the present invention, for example, this information is recorded in the TDDS of TDMA.TDDS comprises many general disc management information, and owing to upgrade timing for each, information is recorded among the TDDS recently, so TDDS will be suitable for writing down this management information most.
Fig. 4 shows the method for managing the rewriting on the optical disc write once in accordance with another embodiment of the present invention.The zone that the replacement record request rewrites in another zone of data field (for example, the A-B district) in the data when after replacing record, keeping the continuity of user data area, (promptly among a-b) replaces record in zone before OSA, OSA is extended to the size of replacing recording areas, subsequently, but be registered as management information according to the information that expansion OSA changes about the last record position of user data area.
Fig. 5 has illustrated the method for the rewriting on the management optical disc write once of another embodiment according to the present invention.The zone that the replacement record request rewrites in another zone of data field (for example, the A-B district) in the data when after replacing record, keeping the continuity of user data area, in OSA, replace record, consider that after replacing recording operation the size of replacing recording areas can be expanded OSA, if and OSA is expanded, but be recorded as management information according to the information that expansion OSA changes about the last record position of user data area.In addition, after replacing recording operation, consider the size of replacing recording areas, can not expand OSA, and if do not expand OSA, but the last record position information of user data area then do not changed.In addition, can before replacing recording operation, expand OSA, and can carry out the expansion of OSA according to user's request during the system initialization or between the operating period of CD.
Fig. 7 schematically shows the structure according to the TDDS of Fig. 3,4 and 5 the embodiment of the invention, has wherein write down by overwrite request and has carried out the LSN information that record changes of replacing.
In TDDS, provide the field of the positional information of the positional information that is used for record " LSN=0 " and " last LSN ", and as long as upgrade TDDS, just the positional information of the positional information of record " LSN=0 " and " last LSN ".Therefore, in Fig. 3,4 and 5 the embodiment of the invention, carry out according to overwrite request and to replace record, and record is by replacing the last LSN information that record changes.
Fig. 6 shows the method for the rewriting on the management optical disc write once of another embodiment according to the present invention.The zone that the replacement record request rewrites in another zone of data field (for example, the A-B district) in the data when after replacing record, keeping the continuity of user data area, zone before the OSA (promptly, in the a-b zone) carry out and replace record, this OSA is extended to the size of replacing recording areas, subsequently, but replacing the last record position that the record back changes user data area.Different with Fig. 3,4 and 5 embodiment, according to the embodiment of Fig. 6, replace the last LSN value (before OSA) that offers user data area before the record and keep former state, and new last LSN is provided for user data area after writing down replacing.This is called the last LSN that uses of user data area especially.
Fig. 8 shows the management information that writes down among the TDDS when execution graph 6 methods.TDDS comprises old last LSN value and is replacing the available last LSN information that the record back changes.
Fig. 9 to 15 has illustrated the method according to the rewriting on the embodiment of the invention management double deck type optical disc write once.Now, embodiments of the invention will be described, with the example of BD-WO as optical disc write once.
At first, Fig. 9 has illustrated the structure according to the BD-WO as the double deck type optical disc write once of the present invention.Compare with single-layer type optical disc write once shown in Figure 2, the BD-WO of Fig. 9 shows the double deck type optical disc write once, and two recording layers are known as layer 0 and layer 1.
According to double deck type BD-WO, the LSN that offers user data area is the successive value of the front portion (that is last LSN) from the end of the ISA0 of layer 0 to the ISA1 of layer 1.For LIA and LOA, divide TDMA0 and the TDMA1 that is used in records management information respectively, and TDFL, TDDS are recorded among TDAM0 and the TDMA1 by the mode identical with single-layer type BD-WO with SBM information.
Figure 10 has illustrated the method according to the rewriting on the management double deck type optical disc write once of the embodiment of the invention, and it is corresponding to the method for the rewriting on the management single-layer type optical disc write once of Fig. 3.The zone that the replacement record request rewrites in another zone of data field (for example, the C-D district) in the data when after replacing record, keeping the continuity of user data area, from the front portion of ISA1 (for example, the c-d zone) replaces record data, and after replacing record, but the last record position of change user data area.In this case, carry out rewrite operation by the mode identical with the single-layer type optical disc write once.That is, before replacing record, user data area has and the corresponding last LSN information in the lucky forward position of ISA1, but after replacing record, new last LSN is provided for user data area.Management information is recorded in the TDDS of TDMA, and as shown in Figure 7, the new last LSN value of information of record during TDDS upgrades timing.
In the situation of dual-layer type disc, also can by identical mode use shown in Figure 4 and 5 before the OSA or the replacement record of the data in the OSA of single-layer type CD, and in this case, the ISA1 of layer 1 will be the spare area of expansion.
Figure 11 has illustrated the method that rewrites of managing according to another embodiment of the invention on the double deck type optical disc write once, this is corresponding to the method that rewrites on the single-layer type optical disc write once of Fig. 6.The zone that the replacement record request rewrites in another zone of data field (for example, the C-D zone) in the data when after replacing record, keeping the continuity of user data area, from the front portion of ISA1 (for example, the c-d zone) replaces record data, and after replacing record, but the last record position of change user data area.That is, the last LSN information (before ISA1) that offers user data area before replacing record is kept former state, and new last LSN is provided for user data area after replacing record.This is called the available last LSN of user data area especially.Management information is recorded among the TDDS of TDMA, and as shown in Figure 8, the new available last LSN value of information of record during TDDS upgrades timing.
Figure 12 has illustrated the method that another embodiment management rewrites according to the present invention on the double deck type optical disc write once, it has the last LSN information of corresponding each recording layer.The zone that the replacement record request rewrites in other zone of data field (for example, A-B zone and C-D zone) data in order to replace when keeping the continuity of user data area after writing down, the data in A-B zone be replaced be recorded in OSA0 the front portion (for example, the a-b zone), and the data in C-D zone are replaced the front portion (for example, c-d zone) that is recorded in ISA1.In addition, after replacing record, with respect to each recording layer, but the last record position of change user data area.In this case, can replace record for each recording layer of dual-layer type disc.Like this, before replacing record, last LSN information is provided for the user data area (for example, the last LSN of layer 0 and layer 1) of each recording layer, but after replacing record, new last LSN is provided for the user data area of each recording layer.Management information is recorded among the TDDS of TDMA, and as shown in figure 14, is the new last LSN information of each recording layer record during TDDS upgrades timing.
In the situation of dual-layer type disc, among the OSA of the single-layer type CD shown in Figure 4 and 5 or the replacement of the data of OSA front portion record also can use by identical mode, and in this case, OSA0 will be the expansion spare area of layer 0, and ISA1 will be the expansion spare area of layer 1.
Figure 13 has illustrated the method that rewrites of managing according to a further embodiment of the invention on the double deck type optical disc write once.The zone that the replacement record request rewrites in other zone of data field (for example, A-B zone and C-D zone) data in order to replace when keeping the continuity of user data area after writing down, the data in A-B zone are replaced and (for example are recorded in before the OSA0, the a-b zone), and the data in C-D zone are replaced and are recorded in (for example, c-d zone) before the ISA1.In addition, after replacing record, with respect to each recording layer, but the last record position of change user data area.In this case, replace each recording layer that record can be used for dual-layer type disc.That is, the last LSN information (for example, the last LSN of layer 0 and layer 1) that offers the user data area of each recording layer is kept former state, but after replacing record, new last LSN is provided for the user data area of each recording layer.They are called the available last LSN of the available subscribers data field of layer 0 and layer 1 especially.Management information is recorded among the TDDS of TDMA, and as shown in figure 15, during TDDS upgrades timing, is the new last LSN value of information of each recording layer record.
Figure 13 shows the device that is used for the recoding/reproduction optical disc write once according to of the present invention.This data recording/reproducing device comprises and being used at the enterprising line item of CD/data recording/reproducing device of reproduction and the controller that is used to control this device.Controller is used for the recoding/reproduction order is offered data recording/reproducing device, and data recording/reproducing device is according to order enterprising line item/reproduction in the specific region of CD of controller.Data recording/reproducing device 10 comprises and the outside interface 12 that communicates, the light picker 11 of record or reproduction data on CD, be used for receiving reproducing signal and be modulated into the data processor 13 of signal to shift this modulation signal that can be recorded on the CD with the signal that reverts to expected signal value or will write down from light picker, be used to control light picker 11 so that accurately read signal or the accurate servo unit 14 of write signal on CD from CD, be used for the interim storer 15 of the various information that contain management information and data and the microcomputer 16 that is used for the element of controlling recording/transcriber stored.
During recording operation, read all management information of CD and be stored in the storer 15 of data recording/reproducing device, and management information is used for the recoding/reproduction operation on the CD.Record data in the specific region of CD if desired, then controller 20 is transferred to data recording/reproducing device with positional information with the data that will write down.Microcomputer 16 receiving record orders in the data recording/reproducing device 10, and the management information of storage from storer 15 (particularly, judge that SBM information with reference to figure 2 and 9 explanations) disc area of controller 20 expectation record data is that the zone of having write down also is the zone of non-record.If it judges that this zone is non-posting field, then microcomputer 16 carries out record according to the record order of controller 20, if and judge that this zone is the zone of having write down, then microcomputer 16 is replaced these data and is recorded in another zone of data field, thereby can guarantee the continuity of user data area.
Industry is used
Therefore, the present invention can carry out logical overwrite, keeps simultaneously the physics characteristic of optical disc write once, and namely single writes characteristic. Particularly, by keep the continuity of user data area after physical overwrite operation, it has promoted the use efficient of CD.
What those skilled in the art were obvious is can carry out various modifications and variations in the present invention. Therefore, the present invention is intended to cover various modifications and variations of the present invention, as long as they are at the range of appended claims and equivalent thereof.
Claims (19)
1. method that management rewrites on optical disc write once, optical disc write once comprises the data field with spare area and user data area, is given the logic area segment number on the user data area, it is characterized in that, comprising:
From the back of the user data area of CD,, carry out and replace recording operation by writing the replacement data that is requested to rewrite in the specific region of recorded data wherein;
The record expression is according to the first information of the last logic area segment number of the user data area of replacing the recording operation change in the directorial area of CD; And
Record second information, the second information representation specific region and the position that is recorded in the replacement data in the user data area in directorial area.
2. the method for claim 1 is characterized in that, obtains the last logic area segment number information of user data area about the information of the previous last logic area segment number of user data area by renewal.
3. the method for claim 1 is characterized in that, the last logic area segment number information of user data area is updated to new management information, and the while is kept former state about the information of the previous last logic area segment number of user data area.
4. the method for claim 1 is characterized in that, described optical disc write once is the double deck type optical disc write once, can be by identical mode using said method to it.
5. method as claimed in claim 4 is characterized in that, and is the same with a recording layer, and the user data area that provides continuously is provided bilayer.
6. method as claimed in claim 4 is characterized in that, the first information is represented the last logic area segment number of user data area of each recording layer of CD.
7. method that management rewrites on optical disc write once, optical disc write once comprises the data field with spare area and user data area, is given the logic area segment number on the user data area, it is characterized in that, comprising:
Zone before the outer spare area of CD by writing the replacement data that is requested to rewrite in the specific region of recorded data wherein, is carried out and is replaced recording operation;
The outer spare area expansion is reached the size of replacement data;
In the directorial area of CD, the record expression is according to the first information of the last logic area segment number of the user data area of the expansion variation of outer spare area; And
Record second information, the second information representation specific region and the position that is recorded in the replacement data in the user data area in directorial area.
8. the method that management rewrites on optical disc write once is characterized in that, comprising:
In the outer spare area of CD,, carry out and replace recording operation by writing the replacement data that is requested to rewrite in the specific region of recorded data wherein;
Consider the size of replacement data, judge whether to expand outer spare area;
In the directorial area of CD, the record expression is according to the first information of the last logic area segment number of the user data area of the judgement change of the expansion of outer spare area; And
Record second information, the second information representation specific region and the position that is recorded in the replacement data in the outer spare area in directorial area.
9. method as claimed in claim 8 is characterized in that, determines whether to expand outer spare area before replacing recording operation.
10. method as claimed in claim 8 is characterized in that, determines whether to expand outer spare area during the CD initialization.
11. the method that management rewrites on optical disc write once, optical disc write once comprises the data field with spare area and user data area, is given the logic area segment number on the user data area, it is characterized in that, comprising:
Reception is asked in the record order of the enterprising line item in the specific region of CD;
Judge that described specific region is that the zone that has been recorded also is non-posting field; And
If judging this specific region is the zone that has been recorded, then in another zone of user data area, carry out the replacement recording operation, so that after replacing recording operation, can guarantee the continuity of user data area by writing replacement data; And
In the directorial area of CD, the record expression is by the first information of the last logic area segment number of the user data area of replacement recording operation change.
12. method as claimed in claim 11 is characterized in that, utilizing the nearest space bit map SBM information that writes down in the CD to carry out about the specific region is that the zone that has been recorded also is the judgement of non-posting field.
13. the device that management rewrites on optical disc write once, optical disc write once comprises the data field with spare area and user data area, is given the logic area segment number on the user data area, it is characterized in that, described device comprises:
From the back of the user data area of CD,, carry out the device of replacing recording operation by writing the replacement data that is requested to rewrite in the specific region of recorded data wherein;
The record expression is according to the device of the first information of the last logic area segment number of the user data area of replacing the recording operation change in the directorial area of CD; And
The device of record second information, the second information representation specific region and the position that is recorded in the replacement data in the user data area in directorial area.
14. device as claimed in claim 13, it is characterized in that, CD has two recording layers, and the first information comprises the last logic area segment number of user data area of each recording layer of CD, wherein, the device that rewrites on optical disc write once of described management also is included in the device of the first information of last logic area segment number that record in the directorial area comprises the user data area of each recording layer.
15. the device that management rewrites on optical disc write once, optical disc write once comprises the data field with spare area and user data area, is given the logic area segment number on the user data area, it is characterized in that, described device comprises:
The device of replacing recording operation by writing the replacement data that is requested to rewrite in the specific region of recorded data wherein, is carried out in zone before the outer spare area of CD;
The outer spare area expansion is reached the device of the size of replacement data;
In the directorial area of CD, the record expression is according to the device of the first information of the last logic area segment number of the user data area of the expansion variation of outer spare area; And
The device of record second information, the second information representation specific region and the position that is recorded in the replacement data in the user data area in directorial area.
16. the device that management rewrites on optical disc write once is characterized in that, described device comprises:
In the outer spare area of CD,, carry out the device of replacing recording operation by writing the replacement data that is requested to rewrite in the specific region of recorded data wherein;
Consider the size of replacement data, judge whether to expand the device of outer spare area;
In the directorial area of CD, the record expression is according to the device of the first information of the last logic area segment number of the user data area of the judgement change of the expansion of outer spare area; And
The device of record second information, the second information representation specific region and the position that is recorded in the replacement data in the outer spare area in directorial area.
17. device as claimed in claim 16 is characterized in that also comprising, determines whether to expand the device of outer spare area before replacing recording operation.
18. device as claimed in claim 16 is characterized in that also comprising, determines whether to expand the device of outer spare area during the CD initialization.
19. a device that is used for the recoding/reproduction optical disc write once, optical disc write once comprises the data field with spare area and user data area, is given the logic area segment number on the user data area, it is characterized in that, described device comprises:
Reception is used to ask the device of the record order of the specific region identifying recording layer of recorded data therein;
Replace recording operation by carrying out in another zone that replacement data is write user data area, even so that after replacing recording operation, can guarantee the successional device of user data area; And
In the directorial area of CD, the record expression is according to the device of the first information of the last logic area segment number of the user data area of replacing the recording operation change.
Applications Claiming Priority (16)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020078889 | 2002-12-11 | ||
| KR20020078889 | 2002-12-11 | ||
| KR10-2002-0078889 | 2002-12-11 | ||
| KR20030005212 | 2003-01-27 | ||
| KR1020030005212 | 2003-01-27 | ||
| KR10-2003-0005212 | 2003-01-27 | ||
| KR10-2003-0009896 | 2003-02-17 | ||
| KR20030009896 | 2003-02-17 | ||
| KR1020030009896 | 2003-02-17 | ||
| KR10-2003-0013199 | 2003-03-03 | ||
| KR1020030013199 | 2003-03-03 | ||
| KR20030013199 | 2003-03-03 | ||
| KR1020030045316 | 2003-07-04 | ||
| KR20030045316 | 2003-07-04 | ||
| KR10-2003-0045316 | 2003-07-04 | ||
| PCT/KR2003/002596 WO2004053872A1 (en) | 2002-12-11 | 2003-11-27 | Method and apparatus for managing overwrite on an optical disc write once |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1745427A CN1745427A (en) | 2006-03-08 |
| CN1745427B true CN1745427B (en) | 2010-12-08 |
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| CN2003801094129A Expired - Fee Related CN1745427B (en) | 2002-12-11 | 2003-11-27 | Method and apparatus for managing overwrite on an optical disc write once |
| CN2003801094379A Expired - Lifetime CN1745428B (en) | 2002-12-11 | 2003-11-27 | Method for managing overwrite and method for recording management information on an optical disc write once |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2003801094379A Expired - Lifetime CN1745428B (en) | 2002-12-11 | 2003-11-27 | Method for managing overwrite and method for recording management information on an optical disc write once |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102622357A (en) * | 2011-01-27 | 2012-08-01 | 赛酷特(北京)信息技术有限公司 | Method for single write-in on basis of fat32 file system format |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448728A (en) * | 1991-08-08 | 1995-09-05 | Sharp Kabushiki Kaisha | Storage medium control system for controlling a write-once read-many storage medium |
| EP1043723A1 (en) * | 1999-03-08 | 2000-10-11 | Matsushita Electric Industrial Co., Ltd. | Information recording medium, information recording method, information recording apparatus and information reproducing apparatus |
| CN1685426A (en) * | 2002-11-22 | 2005-10-19 | 索尼株式会社 | Recording medium, recording device, reproduction device, recording method, and reproduction method |
-
2003
- 2003-11-27 CN CN2003801094129A patent/CN1745427B/en not_active Expired - Fee Related
- 2003-11-27 CN CN2003801094379A patent/CN1745428B/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448728A (en) * | 1991-08-08 | 1995-09-05 | Sharp Kabushiki Kaisha | Storage medium control system for controlling a write-once read-many storage medium |
| EP1043723A1 (en) * | 1999-03-08 | 2000-10-11 | Matsushita Electric Industrial Co., Ltd. | Information recording medium, information recording method, information recording apparatus and information reproducing apparatus |
| CN1685426A (en) * | 2002-11-22 | 2005-10-19 | 索尼株式会社 | Recording medium, recording device, reproduction device, recording method, and reproduction method |
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| Publication number | Publication date |
|---|---|
| CN1745428A (en) | 2006-03-08 |
| CN1745428B (en) | 2011-01-26 |
| CN1745427A (en) | 2006-03-08 |
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