CN1848253A - Method and apparatus for preserving data-recording status of a write-once recording medium, and write-once recording medium therefor - Google Patents
Method and apparatus for preserving data-recording status of a write-once recording medium, and write-once recording medium therefor Download PDFInfo
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- CN1848253A CN1848253A CN 200610079077 CN200610079077A CN1848253A CN 1848253 A CN1848253 A CN 1848253A CN 200610079077 CN200610079077 CN 200610079077 CN 200610079077 A CN200610079077 A CN 200610079077A CN 1848253 A CN1848253 A CN 1848253A
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- 238000004321 preservation Methods 0.000 description 4
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Abstract
A write-once recording medium preserving a data recording status of the write-once recording medium, a method of preserving the data recording status of a write-once recording medium, a medium including computer readable code for the same, and a recording and/or reproducing apparatus therefor. In the method of preserving the data recording status of a write-once recording medium, first, data is recorded on the write-once recording medium. Next, recording-status data, representing occupied areas, is produced and recorded in a temporary defect management area allocated in the write-once recording medium. Thereafter, a finalization command is received to preserve the data-recording status of the recording medium. Then, in response to the finalization command, predetermined data is recorded in a temporary defect management area to prevent further data recording on the write-once recording medium. Accordingly, the data recording status of the finalized write-once recording medium can be preserved.
Description
The application be that March 4, application number in 2004 are 200480000940.5 the applying date, denomination of invention divides an application for the application for a patent for invention of " being used to preserve the method and apparatus of data-recording status of write once recording recording medium and the once writing recording medium that is used for it ".
Technical field
The present invention relates to a kind of once writing recording medium of the data-recording status of once writing recording medium, a kind of method of the data-recording status of once writing recording medium, a kind of medium and a kind of record and/or transcriber that is used for once writing recording medium that is used for identical purpose computer-readable code that comprise preserved preserved.
Background technology
Recording medium, CD for example, its data readable region be by introducing the zone, draw the zone and the data area is formed, and each in them is by bunch forming.Bunch be record or the unit that reproduces data.The type that depends on data type and standardized recording method is recorded in aggregate of data in trizonal one.
After data recording, produce bitmap with expression about the information of the All Ranges of record data therein, then bitmap is recorded in the presumptive area of recording medium, to help to write down easily and/or reproduce data.More particularly, produce bitmap with expression introduce the zone, draw zone and data area each taken bunch and unappropriated bunch.Bitmap is recorded in the recording medium, thereby record and/or transcriber can be carried out the zone of the recording medium of fast access expectation.Specifically, because the zone of the data that bitmap identification has taken, so they are that important once writing recording medium is very useful to the management of the defective that produces during data recording therein.
The final once writing recording medium of determining represents that once writing recording medium is in the state that does not have multidata more can be recorded to this recording medium.Though the final of once writing recording medium determines it both can had been that other therein data can be recorded in the user data area of a recording medium, but once writing recording medium is finally determined, also can be therein when it reaches the predetermined final condition of determining, so for example when the user data area because of once writing recording medium did not all have more data can be recorded on the once writing recording medium with data occupancy, once writing recording medium was finally determined.
When once writing recording medium is finally determined, need to preserve the current data recording status, perhaps need to prevent the variation of data-recording status.Usually, when Backup Data or when being recorded on the write-once medium, must take important measures to forge or change the data that write down of this recording medium to prevent the 3rd people with the image that monitor camera is taken.Even the data that write down are changed by the third party, still need discern the variation in the data that write down, and need determine to be recorded in the raw data on this recording medium.
Summary of the invention
The invention provides a kind of once writing recording medium of data-recording status of keeping records medium, a kind of method of the data-recording status of this once writing recording medium, a kind of medium and a kind of record and/or transcriber that comprises the computer-readable code that is used for identical purpose preserved, install the data-recording status of preserving the once writing recording medium of finally determining by this, perhaps prevent modification the data-recording status of this once writing recording medium of finally determining.Determine easily this finally variation of the data-recording status of definite recording medium, and can determine to be recorded in the once writing recording medium and the corresponding raw data of previous recording status.
To partly set forth other aspect of the present invention and/or advantage in the following description, and wherein a part will be clearly from describe, perhaps can be by enforcement study of the present invention.
In order to realize above and/or others and advantage, embodiments of the invention provide a kind of method of data-recording status of keeping records medium, and it comprises: data are recorded on this recording medium; Produce the recording status data of the occupied area of this recording medium of expression, and these recording status data are recorded in the temporary defect management area territory that is distributed in this recording medium; Reception is used to preserve data-recording status data final of this recording medium and determines order; With finally determine that in response to this order is recorded in tentation data in this temporary defect management area territory, to prevent also at this recording medium identifying recording layer.
The step of recording scheduled data can also comprise: finally determine order in response to this, duplicate the temporary control and education data that comprise the recording status data of final entry in this temporary defect management area territory, and the temporary control and education data that will duplicate are recorded in the defect management on this recording medium.
This method can also comprise by determining based on the defect management that comprises the temporary control and education data of having duplicated whether this recording medium is finally determined, prevent to go back record data, and by determining that based on the defect management that comprises the temporary control and education data of having duplicated whether this recording medium is finally determined, prevents to go back record data.In addition, this tentation data can be recorded in the whole vacant zone in this temporary defect management area territory.
In addition, the recording status data can also comprise bitmap, it distinguishes the vacant data area that takies data area and this recording medium of this recording medium in the recordable zone of whole data on this recording medium by having taken and/or vacant zone with value representations different in the bitmap.Whether each bitmap can designation data be recorded in each bunch as this recording medium of the data record unit of this recording medium.This recording medium also can be an once writing recording medium.
In order to realize above and/or others and advantage, embodiments of the invention provide a kind of data are recorded in method on the recording medium, it comprises: determine sign based on final in the detected space bit map that is recorded in this recording medium, determine whether this recording medium is finally determined; With definite, prevent data recording to this recording medium based on what this recording medium had finally been determined.
In order also to realize above and/or others and advantage, embodiments of the invention provide a kind of data are recorded in method on the recording medium, it comprises: based on to determining that to the final of these recording medium recording data order is recorded in determining in the temporary defect management area territory with precedence record to the tentation data in this recording medium, prevents data recording to this recording medium in response to preventing also.
And, in order to realize above and/or others and advantage, embodiments of the invention provide a kind of data are recorded in method on the recording medium, it comprises: based on the detected final definite sign in the defect management that is recorded in this recording medium (DMA), determine whether this recording medium is finally determined; With definite, prevent data recording to this recording medium based on what this recording medium had finally been determined.
In order to realize above and/or others and advantage, embodiments of the invention provide a kind of data are recorded in method on the recording medium, comprise: based on be recorded in do not comprise in the final defect management (DMA) of determining sign and indicate this recording medium by the final temporary disk (T-disk) defect sturcture (TDDS) that has write down, temporary disk (T-disk) defect list (TDFL) or the space bit map of determining (SBM), prevent data recording to this recording medium.TDDS, TDFL and SBM also can be recorded in DMA and divide in the temporary defect management area territory (TDMA) of opening.TDDS and SBM can also be stored in the single zone that separates with the zone that comprises TDFL.
In order to realize above and/or others and advantage, embodiments of the invention provide a kind of record and/or transcriber, comprising: pick-up, and it is with the data writing recording medium or from the recording medium reading of data; And controller, it controls this pick-up data are recorded on this recording medium, but produce the recording status data of the occupied area in the whole data posting field on this recording medium of expression, and the control pick-up is recorded in tentation data in the temporary defect management area territory these recording status data are recorded in the temporary defect management area territory that is distributed on this recording medium and in response to final definite order of sending for the data-recording status of preserving this recording medium, to prevent also at this recording medium identifying recording layer.
In order to realize above and/or others and advantage, embodiments of the invention provide a kind of record and/or transcriber, comprising: pick-up, and it is with the data writing recording medium or from the recording medium reading of data; And controller, it controls this pick-up data are recorded on this recording medium, and comprise this recording medium of identification by the determining of the final tentation data of determining based on temporary defect management area territory, prevent data recording to this recording medium to this recording medium.Can determine that tentation data is recorded in this temporary defect management area territory based on the preassigned data in the whole vacant zone that is recorded in this temporary defect management area territory.
In order to realize above and/or others and advantage, embodiments of the invention provide a kind of zone of introducing that has, the data area, with the recording medium of drawing the zone, it comprises: the temporary defect management area territory, it is formed on introduces the zone, the data area, with draw in the zone at least one in, wherein, the recording status data of discerning the occupied area of this recording medium are recorded in this temporary defect management area territory, if wherein this recording medium is finally determined, so tentation data is recorded in this temporary defect management area territory, to prevent also at this recording medium identifying recording layer.
In order to realize above and/or others and advantage, embodiments of the invention provide a kind of medium that comprises a kind of computer-readable code, and the controller of this code controlling recording and/or transcriber is to carry out the method for embodiments of the invention.
Similarly, in order to realize above and/or others and advantage, embodiments of the invention provide a kind of medium that comprises a kind of computer-readable code, this record of this code control embodiment of the invention and/or the controller of transcriber.
Description of drawings
Figure 1A and 1B illustrate the structure of once writing recording medium according to an embodiment of the invention;
Fig. 2 illustrates the structure according to the recording status data of the embodiment of the invention;
Fig. 3 illustrates the structure according to the final recording status data of the embodiment of the invention;
Fig. 4 illustrates the detailed data structure according to the once writing recording medium with single-recordng-layer of the embodiment of the invention;
Fig. 5 illustrates according to another embodiment of the present invention the detailed structure in the blotter media defect structure (TDDS) shown in Fig. 4;
Fig. 6 illustrates another detailed data structure according to the once writing recording medium with single-recordng-layer of the embodiment of the invention;
Fig. 7 illustrates the detailed structure in zone that is used to store TDDS and space bit map (SBM) according to Fig. 6 of the embodiment of the invention.
Fig. 8 illustrates another detailed data structure according to the once writing recording medium with single-recordng-layer of the embodiment of the invention;
Fig. 9 is the block scheme of device that is used to realize to preserve the data-recording status of once writing recording medium according to an embodiment of the invention;
Figure 10 is the record of Fig. 9 and/or the block scheme of transcriber;
Figure 11 is the process flow diagram that the method for the data-recording status that is used to preserve once writing recording medium according to an embodiment of the invention is shown; With
Figure 12 is the process flow diagram of method of data-recording status that is used to preserve once writing recording medium that illustrates according to another embodiment of the present invention.
Embodiment
Now will be in detail with reference to embodiments of the invention, the example of embodiment shown in the drawings, wherein identical label is represented identical parts all the time.Embodiment is described below with reference to the accompanying drawings to explain the present invention.
Fig. 1 illustrates the structure of once writing recording medium according to an embodiment of the invention.Shown in Figure 1A, if once writing recording medium has single-recordng-layer L0, it comprises introducing zone, data area and draws the zone so.Introduce the inboard boundary vicinity that the zone is positioned at this recording medium, and draw the zone and be positioned near the outer boundaries of this recording medium.The data area forms introducing and draw between the zone, and is divided into spare area and user data area.
The zone that user data area domain representation data are recorded in it.But spare area represents to be used for replacing the record space of not occupied by defective of user area.Because a general best recording medium provides max cap. for record data, yet also considers defective, thus spare area can be set at first to account for this recording medium entire data capacity 5%.
Shown in Figure 1B, if once writing recording medium has two recording layer L0 and L1, recording layer L0 has from the inboard border of this recording medium to introducing zone, data area and the perimeter that outer boundaries forms in order so.Recording layer L1 also has from perimeter, the data area that the outer boundaries of this recording medium forms in order to inboard border and draws the zone.Compare with the single-recordng-layer write-once medium of Figure 1A, the bilateral recording medium draw the inboard boundary vicinity that the zone is formed on this recording medium.
In other words, the double record layer once writing recording medium of Figure 1B is recorded in data from the introducing zone of recording layer L0 to its exterior lateral area and draws the contrary orbital path (OTP) in zone to it from the exterior lateral area of recording layer L1 then, and spare area is dispensed in each of recording layer L0 and L1.
In the embodiment of Figure 1A and 1B, spare area may reside in to be introduced between zone and the user area and between exterior lateral area and the user area.Yet in some cases, spare area also can be formed on by cutting apart in the additional areas that the user area obtains, and introduces the zone and draws between the zone thereby at least one spare area may reside in.Therefore, a plurality of various spare areas of dynamic position potentially that have can be arranged.
" recording status " but data are meant by distinguishing region occupied and unappropriated zone represents the information of the recording status of the total data posting field on the recording medium.Specifically, by give taken be called as bitmap with unappropriated bunch of information of distributing different bit values to produce, bunch be the unit that data are recorded in it, and bunch also can be called piece.
Fig. 2 illustrates the structure according to the recording status data of the embodiment of the invention.As shown in Figure 2.Space bit map from SBM# 0 to SBM#n (SBM) is represented the recording status data.
SBM#i (i be 0 and n between integer) comprise identifier (for example, SBM#i), header data and the data bitmap (for example, bitmap #i) of each SBM.Header data comprises final determine sign and refresh counter, but and data bitmap indicate whether bunch being that unit is recorded in data on the posting field of this once writing recording medium.
If the recording status data must produce and write down the SBM#i of the new data bitmap that comprises the data area that representative has taken so owing to the other data of record in recording medium change.When producing and writing down new SBM#i, be included in the number of times of the renewal of the refresh counter indication recording status data among the new SBM#i.
Produce in order to upgrade the recording status data each SBM#i time can according to be installed in the record and/or transcriber in program and difference.Yet, general, be recorded before thereon once writing recording medium ejected from record and/or transcriber in data, new SBM#i will be produced and be write down at least once.
Whether final definite sign also is used to indicate once writing recording medium finally to be determined.
Fig. 3 illustrates the final recording status data structure according to the embodiment of the invention.Once writing recording medium by final determine before, be included in final in the head zone of each SBM and determine that sign is represented as " 0 " and is in the same place with other data recording.As shown in Figure 3, with the SBM of SBM#n representative record before region occupied final determined.If the main frame as main frame is finally determined order to record and/or transcriber issue, have only final definite value of statistical indicant to be changed to " 1 " in the data of the SBM#n that so in the end is updated, and comprise that the SBM#n of final definite sign " 1 " is write down once more to indicate this recording medium finally to be determined from " 0 ".
As shown in Figure 3, in some cases, for example the tentation data of " ffh " is recorded in next zone of the SBM#n with final definite sign " 1 ", thereby prevents also record SBM and other data on this once writing recording medium.In this case, preferably " ffh " is recorded in the whole unappropriated part in the zone that is used to write down SBM.
Owing to record has the final SBM that determines sign " 1 ", so the user can preserve the data-recording status of this once writing recording medium when finally determining.In other words, even changed by the data on the final recording medium of determining when being recorded in, when perhaps new data is added to the data that write down, can be by being identified in the final data that write down before determining with reference to being included in the data bitmap that has among the final SMB that determines sign " 1 ".This allows to be identified in the final other data of determining the back record.
Because recording scheduled data in next zone of the SBM#n with final definite sign " 1 " so can no longer write down SBM, are recorded on the once writing recording medium of finally determining to prevent other data.
Though the final definite sign among the embodiment among Fig. 2 and Fig. 3 is recorded in the head zone of each SBM#i, the position of final definite sign is not limited to the present invention.Can indicate in the zone that is recorded in except the head zone of each SBM#i finally determining.
Describe the zone that is used to write down final definite sign in detail hereinafter with reference to accompanying drawing.Fig. 4 illustrates the embodiment according to the detailed data structure of the once writing recording medium with single-recordng-layer of the embodiment of the invention.With reference to Fig. 4, introduce the zone and comprise temporary disk (T-disk) defect sturcture (TDDS) zone, temporary defect list (TDFL) zone and SBM zone.
Generally, storage is formed on about the defect management (DMA) of the information of the defective that produces when being recorded in data in the data area and introduces the zone and/or draw in the zone.When recording medium was loaded into record and/or transcriber, record and/or transcriber were carried out initialization.Initialization operation comprises by from introducing the zone and/or draw the zone and read the data that comprise defective data, determines how to manage this once writing recording medium and how to be recorded in data on this recording medium or to reproduce data on this recording medium.
Therefore, along with introducing the zone and/or drawing the increase of the amount of the data that write down in the zone, the time increase that the initialization recording medium is packed into after is required.In order to reduce the required time of initialization, use the temporary control and education data that comprise TDDS and TDFL, wherein TDDS and TDFL are recorded in and introduce the zone and/or draw regional DMA and divide in the temporary defect management area territory (TDMA) of opening.
TDFL comprises the data in defect recognition zone and the data in the zone that identification is replaced recently.TDDS is used to the data of managing TDFL and comprising the record position of discerning TDFL.
The temporary defect management data also comprises the SBM that represents the recording status data.
In other words, TDMA is set with storage TDDS, TDFL and SBM.In this case, TDMA forms introducing zone, data area and draw in the zone at least one, and can be a zone physically or be divided into a plurality of zones.
For example, with reference to Fig. 4, introduce the zone and comprise TDDS zone, TDFL zone and SBM zone.In this case, TDMA is divided into TDDS zone, TDFL zone and SBM zone.As shown in Figure 6, introduce the zone and can both comprise that the zone that is used to store TDDS and SBM (that is TDDS+SBM zone) comprised the zone that is used to store TDFL again.In this case, TDMA is divided into two zones,
When once writing recording medium is finally determined because not more multidata need be recorded on this recording medium or because can not write down more multidata thereon, so TDFL that will write down recently and TDDS shift to DMA and final entry in DMA.Therefore, when record and/or transcriber when this once writing recording medium reads defect management information, will only read significant data from DMA.Therefore, can realize fast initialization.In addition, because same defect management data can be recorded in many zones, so can improve the reliability of data.
Introduce the zone and comprise the SBM zone, its representative comprises the recording status data of the data bitmap in the zone that has been recorded in it about data.
The data area comprises spare area 1 and 2 and the user area.In the embodiment shown in fig. 4, if select to carry out defect management by record and/or transcriber, spare area 1 is dispensed on the head of data area so, and spare area 2 is dispensed on the afterbody of data area.
As mentioned above, the introducing zone of the once writing recording medium shown in Fig. 4 comprises the SBM zone of TDDS zone, TDFL zone and storage SBM.According to embodiments of the invention, in the data structure of the once writing recording medium of Fig. 4, determine that finally sign can be recorded in the TDDS zone.
The data structure in the TDDS zone shown in Fig. 5 displayed map 4.As shown in Figure 5, the TDDS zone is formed by a plurality of bunches.Bunch be data record unit and form by the sector of predetermined number.A bunch of storage TDDS#k (k is equal to, or greater than 0 integer).The sector is the basic physical location of once writing recording medium.
As shown in Figure 5, TDDS#k first physical sector number that comprises the TDDS identifier, represent first physical sector number of counter, driver and the Write-once disc information area of the number of times that TDDS upgrades, be recorded with the corresponding possible TDFL of TDDS#k therein, spare area 1 and 2 size, finally determine sign and about pointing to the data with the SBM pointer of the position of the corresponding SBM of situation of finally definite recording medium.
Simultaneously, if the user does not want to carry out defect management by record and/or transcriber, so therefore, be regardless of to be equipped with and use the zone, and the size of spare area 1 and 2 is registered as " 0 ".
Fig. 6 illustrates another embodiment of the data structure of the once writing recording medium with single-recordng-layer.As shown in Figure 6, introducing the zone comprises the TDFL zone and is used for TDDS and the two zone of SBM (that is TDDS+SBM zone).The introducing zone of once writing recording medium shown in Figure 4 is stored in TDFL, TDDS and SBM in the zones of different, and the introducing zone of the once writing recording medium of Fig. 6 is stored in TDDS and SBM in bunch of single zone.TDMA is formed in TDDS+SBM zone and TDFL zone.
Fig. 7 illustrates the detailed structure in the TDDS+SBM zone of Fig. 6.TDDS and SBM are recorded in one bunch.TDDS comprises final definite sign, and SBM comprises and be somebody's turn to do the corresponding bitmap of final definite sign.
As mentioned above, determine that finally sign not only can be recorded in the head zone of SBM#i, and can be recorded in the various zones in for example TDDS zone and TDDS+SBM zone.
As shown in Figure 1, the SBM zone preferably is formed on the data area, introduces the zone and draw in the zone at least one.The SBM zone is used to store the SBM#i that each represents the recording status data.
As described in detail among the above embodiment, additional final definite sign is used to preserve the data-recording status of once writing recording medium.Below, the method for not using final definite sign and preserving the data-recording status of once writing recording medium is described with reference to Fig. 8 and Fig. 9.
Fig. 8 illustrates another embodiment of the data structure of the once writing recording medium with single-recordng-layer.As shown in Figure 8, the introducing zone of once writing recording medium comprises the TDMA that is used to store TDFL, TDDS and SBM.This introducing zone also comprises DMA1 and the DMA2 that is used for the storage defect management data.The zone of drawing of once writing recording medium comprises DMA3 and DMA4.
TDDS and SBM zone are recorded in bunch of TDMA, and TDFL is recorded in another bunch.Though TDDS is similar with data structure shown in Figure 7 with the data structure that SBM is recorded in bunch therein, record is not final determines to indicate.
When the once writing recording medium of Fig. 8 was finally determined, TDDS, the SBM and the TDFL that are recorded in recently among the TDMA were replicated and are recorded among the DMA.Because final SBM and final TDDS and final TDFL are replicated and are recorded among the DMA, so finally do not determine that sign need be recorded with representative and be recorded in final SBM among the TDMA.
The unappropriated zone of TDMA is all filled up with for example tentation data of " ffh ", to prevent also at this once writing recording medium identifying recording layer.If TDMA for example is full of the data or the DMA storage defect management data of " ffh ", even receive after determining once writing recording medium when being used to write down the order of other data final when record and/or transcriber so, this record and/or transcriber be executive logging data not also.
Fig. 9 is the block scheme of device of preservation of realizing the data-recording status of once writing recording medium according to an embodiment of the invention.As shown in Figure 9, this device comprises write device/reader 1, controller 2 and storer 3.
Write device/reader 1 writes data into once writing recording medium 100 under the control of controller 2, and reads the data that write to verify this data.
According to embodiments of the invention, when data being recorded on the once writing recording medium 100, controller 2 is carried out defect management by the TDMA that use is included in the once writing recording medium 100, and preserves the data-recording status of this once writing recording medium 100.
Can realize the preservation of the data-recording status of once writing recording medium 100 in two ways, that is, the method for sign and the above-mentioned method of not using final definite sign are finally determined in above-mentioned use.
In the method for using final definite sign, when finally determining once writing recording medium 100, controller 2 produces finally to be determined to indicate and it is recorded in the presumptive area of once writing recording medium 100.More particularly, with reference to Fig. 3, in the data of the SBM#n of recent renewal, have only and final determine that the value of sign becomes " 1 " from " 0 ", and have the final SBM#n that determines sign " 1 " and be recorded in once more in next zone of the position with final original SBM#n that determines sign " 0 ".Controller 2 can be controlled and write/reader 1, thereby uses tentation data, i.e. " ffh " fills up the final definite dummy section of " 1 " that indicates of having of SBM#n back.Controller 2 is controlled the final entry of TDDS and TDFL then, thereby they are duplicated and are recorded among the DMA.Do not need the SBM of final entry is duplicated and is recorded among the DMA, and the final definite SBM of " 1 " that indicates that has that is recorded among the TDMA is used as the SBM of final entry.
In not using the final method of determining to indicate, when controller 2 when the main frame (not shown) receives the final order of determining once writing recording medium 100, TDDS, the SBM of final entry, the TDFL of final entry of controller 2 control final entries, thus they are duplicated and are recorded among the DMA.Afterwards, controller 2 control write device/readers 1, thus use tentation data, for example " ffh " fills up the whole unappropriated zone of TDMA.
If this TDMA by for example " ffh " if data fill up or this DMA comprises defect management data, even so final determine once writing recording medium 100 after controller 2 receive the order that is used to write down other data from main frame, it is executive logging data not also.
Though it is dispensable, but should be appreciated that controller 2 can be that a use is coded in the computing machine that the computer-readable code as on any other medium of CD, waveguide, carrier wave or channel on the computer-readable medium or that be present in the support said function is carried out this method.This computing machine can also be implemented as the chip with firmware or can be able to programme to carry out the general or special-purpose computing machine of this method.
In addition, should be appreciated that in order to realize the recording capacity of tens gigabytes, write device/reader 1 can comprise the low wavelength that is used in record tens byte datas on the once writing recording medium, the unit of high numerical aperture type.
The example of this unit includes but not limited to use the 405nm optical wavelength and has 0.85 numerical aperture and the unit of Blu-ray disc compatibility and/or the unit compatible with Advanced Optical Disc (ADO).The example of other once writing recording medium comprises CD-R and DVD-R.
Figure 10 is another block scheme of record and/or transcriber.As shown in figure 10, this record and/or transcriber comprise the pick-up 10 as write device/reader 1.Write-once/recording medium 100 is installed on the pick-up 10.This record and/or transcriber comprise PC I/F 22, DSP 22, RFAMP23, servo-drive system 24 and system controller 25, and all these form controller 2.Storer 3 can be installed in the system controller 25 of controller 2.
When record, PC I/F 21 is from the receiving record order of main frame (not shown) with the data that are recorded.The initialization that system controller 25 executive loggings are required.DSP 22 comes the data that receive from PC I/F 21 are carried out error correcting code (ECC) coding by being added to the data that received as the data of parity checking, in a predefined manner the ECC coded data is modulated then.RF AMP 23 will become the RF signal from the data-switching that DSP 22 receives.The RF signal record that pick-up 10 will receive from RF AMP 23 is to once writing recording medium 100.Servo-drive system 24 receives the required order of servocontrol from system controller 25, and servocontrol pick-up 10.According to embodiments of the invention, system controller 25 order pick-ups 10 perhaps with tentation data, as the temporary control and education data, are recorded on the once writing recording medium 100, to carry out defect management from once writing recording medium 100 reading of data.
In addition, when once writing recording medium 100 is finally determined in response to user's order, so perhaps when because satisfy predetermined finally when determining that condition once writing recording medium 100 is finally determined, system controller 25 order pick-ups 10 are recorded in the temporary defect management data (be TDDS, TDFL and SBM) of final entry in TDMA among the DMA.
When reproducing, PC I/F 21 receives from the main frame (not shown) and reproduces order.Controller 25 is carried out and is reproduced required initialization.Pick-up 10 receives by these once writing recording medium 100 laser light reflected bundles to these once writing recording medium 100 projecting laser bundles, and the output light signal.RF AMP 23 will convert the RF signal to from the light signal that pick-up 10 receives, and will offer DSP 22 from the modulated data that the RF signal obtains, and will offer servo-drive system 24 from the servo-control signal that the RF signal obtains.DSP22 carries out demodulation to modulated data, and exports the data that obtain by the ECC error correcting.Servo-drive system 24 receives servo-control signal from RF AMP 23, receives the required order of servocontrol from system controller 25, and servocontrol pick-up 10.PC I/F 21 sends the data that receive from DSP 22 to the main frame (not shown).When reproducing, system controller 25 can order pick-up 10 to read the required information of defect management.In other words, system controller 25 can be managed total system during recoding/reproduction.
To the method for the data-recording status of preserving once writing recording medium according to an embodiment of the invention be described based on the structure of record and/or the transcriber of Figure 10 now.
Figure 11 is the process flow diagram that the method for the data-recording status of preserving once writing recording medium according to an embodiment of the invention is shown.In the method for Figure 11, use the final preservation of determining to indicate the data-recording status of realizing once writing recording medium.
At first, in operation 110, this once writing recording medium is inserted into record and/or the transcriber that is used for record data, and data are recorded on this once writing recording medium.When this once writing recording medium was inserted in this record and/or the transcriber, this once writing recording medium was initialised.Through initialization, the once writing recording medium that this record and/or transcriber insert by identification is determined recording power data, defect management data and other data relevant with this once writing recording medium, prepares record data.During initialization, whether the zone that this record and/or transcriber visit comprise SBM comprises the information of the data that write down with acquisition about the recordable zone of once writing recording medium, thereby finds recording power data, defect management data and other data relevant with this once writing recording medium fast.This record and/or transcriber obtain to be used for the preparation data of data recording during initialization, and send this preparation data to the main frame that is connected on this record and/or the transcriber.Afterwards, this record and/or transcriber are recorded in data on this once writing recording medium in response to the record order that receives from this main frame.
Not only comprise at this once writing recording medium identifying recording layer recording the user data in the data area, and comprise that the data that the temporary defect administrative institute about the defective that produces is needed are recorded among the TDMA in the data that write down.
In operation 130, because the record new data when changing, produces the SBM#i of the new data bitmap that comprises the zone of representing to comprise new data, and SBM#i is recorded among the TDMA when the data-recording status of this once writing recording medium.When producing and writing down new SBM#i, expression increases by 1 about the refresh counter of the update times of data-recording status data.
Produce and time of record SBM#i can be different according to being installed in program in each record and/or the transcriber.When once writing recording medium is inserted in record and/or the transcriber, and after data are recorded on this once writing recording medium, before this once writing recording medium ejected from this record and/or transcriber, the SBM with new bitmap can only be produced and be write down once.Yet, under SBM situation about being produced once,, for example have a power failure if during data being recorded on this once writing recording medium, emergency condition takes place, can not realize the record of SBM so fully.Therefore, be preferably in be recorded in data on this once writing recording medium during, produce and record has the SBM of new data bitmap.
In operation 150, this record and/or transcriber are determined to order from the final of final definite this once writing recording medium of main frame reception.Although the user can send the final order of determining arbitrarily, usually predetermined final when determining condition when satisfying, for example be full of data and therefore again during record data, send final definite the order as data area or TDMA.Predetermined final when determining condition when satisfying, this record and/or transcriber can automatically finally be determined this once writing recording medium and not receive the final order of determining from main frame.Yet, preferably should write down and/or the satisfied final definite condition of being scheduled to of transcriber notice main frame, and whether the host asks user to finally determine this once writing recording medium.
Once writing recording medium can comprise that TDMA is with managing defect correctly.Yet re-writable recording medium only comprises DMA and does not comprise TDMA.Therefore, but when regenerative recording and/or transcriber were attempted to be recorded in data on the once writing recording medium or reproduced data on the once writing recording medium, compatibility issue may take place.In order to solve compatibility issue, in operation 160, to when finally determining this once writing recording medium, having been duplicated and it is recorded among the DMA by the TDDS and the TDFL of final entry in TDMA.
In operation 170, in response to this final definite order, this record and/or transcriber produce final definite mark and it are recorded in the predetermined zone.More particularly, in the data in the SBM#n of final updated, the final value of determining sign becomes 1 from 0, and represents that the bitmap #n of occupied area remains unchanged.Comprise that the final SMB#n that determines sign " 1 " is recorded in the next position of position of final updated of SBM#n once more.
Though final in the above-described embodiments definite sign is recorded in the head zone of SMB#i, the position of final sign is not limited to embodiments of the invention.As mentioned above, determine that finally sign can be recorded in the zone except that the head zone of SMB#i.
In operation 190,, tentation data is recorded in the next zone in zone with the SMB#n that finally determines sign " 1 " in order to prevent to write down other data.For example, record " ffh " to be preventing from also to write down SBM, and prevents that other data are recorded on this once writing recording medium.
Figure 12 is the process flow diagram that the method for the data-recording status of preserving once writing recording medium according to an embodiment of the invention is shown.In the method for Figure 12, do not use final definite sign and the data-recording status of realization preservation once writing recording medium.
At first, in operation 310, this once writing recording medium is inserted into record and/or the transcriber that is used for record data, and data are recorded on this once writing recording medium.
In operation 330, when the data-recording status of this once writing recording medium because the record new data when changing, comprises that the SBM#i of the new data bitmap in the zone of representing to comprise new data is produced and is recorded among the TDMA.
In operation 350, this record and/or transcriber are determined to order from the main frame reception is final, with final definite this once writing recording medium.
In operation 370, be replicated and be recorded among the DMA by the TDDS and the TDFL of final entry in TDMA.
In operation 390,, tentation data is recorded among the TDMA in order to prevent to write down other data.For example, fill up unappropriated zone among the TDMA, be recorded on this once writing recording medium to prevent other data with " ffh ".Because final when determining final SBM, final TDDS and final TDFL all be replicated and be recorded among the DMA, finally do not determine that sign is recorded in final SBM among the TDMA with expression so do not need to write down.If for example being full of the data or the DMA of " ffh ", TDMA comprises defect management data, even so when after final definite this once writing recording medium, record and/or transcriber receive when being used to write down the order of other data from main frame, and record and/or transcriber be executive logging data not also.
Though this method is described according to once writing recording medium, should be appreciated that this method can be used for the situation that rewritable media or medium have write-once and rewritable part.
Utilizability on the industry
As mentioned above, according to the present invention, preserve the record and/or the transcriber of the data-recording status of this once writing recording medium in the once writing recording medium of data-recording status that can the keeping records medium, the method and being used for of preserving the data-recording status of this once writing recording medium, preserve the data-recording status of the once writing recording medium of finally determining, perhaps prevent modification the data-recording status of this recording medium of finally determining.Determine the variation of the data-recording status of the recording medium that this is finally determined easily.In addition, can determine to be recorded in the once writing recording medium and the corresponding raw data of previous recording status.
Although illustrated and described several embodiments of the present invention, but those skilled in the art still should be appreciated that, under the situation of principle of the present invention that does not break away from its scope of qualification in claim and their equivalent and spirit, can change present embodiment.
Claims (57)
1, a kind of method of data-recording status of keeping records medium comprises:
Data are recorded on this recording medium;
Produce the recording status data of the occupied area of this recording medium of expression, and these recording status data are recorded in the temporary defect management area territory that is distributed in this recording medium;
Reception is used to preserve data-recording status data final of this recording medium and determines order; With
Determine finally that in response to this order is recorded in tentation data in this temporary defect management area territory, to prevent also in these recording medium recording data.
2, method according to claim 1, wherein, the step of recording scheduled data also comprises:
Finally determine order in response to this, duplicate the temporary control and education data that comprise the recording status data of final entry in this temporary defect management area territory, and the temporary control and education data that will duplicate are recorded in the defect management of this recording medium.
3, method according to claim 2 also comprises by determining that based on the defect management that comprises the temporary control and education data of having duplicated whether this recording medium is finally determined, prevents to go back record data.
4, method according to claim 1 also comprises by determining that based on the defect management of the temporary control and education data that comprise final entry whether this recording medium is finally determined, prevents to go back record data.
5, method according to claim 1 wherein, in the step of recording scheduled data, is recorded in this tentation data in the whole vacant zone in this temporary defect management area territory.
6, method according to claim 1, wherein, these recording status data comprise bitmap, it has been by having taken and/or vacant zone with the different value representation in the bitmap, but distinguishes the vacant data area that takies data area and this recording medium of this recording medium in the whole data posting field on this recording medium.
7, method according to claim 6, wherein, whether each bitmap designation data has been recorded in each bunch of this recording medium, and each bunch is the data record unit of this recording medium.
8, method according to claim 1, wherein, this recording medium is an once writing recording medium.
9, method according to claim 1, wherein, after receiving final definite order, recording scheduled data also comprise writing down finally to be determined to indicate to indicate final definite finishing.
10, method according to claim 9 wherein, determines finally that with this sign is recorded in the head of last space bit map.
11, method according to claim 9 also comprises based on the final definite sign that has write down and determines whether this recording medium is finally determined.
12, a kind of data are recorded in method on the recording medium, comprise:
Determine sign based on final in the detected space bit map that is recorded in this recording medium, determine whether this recording medium is finally determined; With
Based on determining that this recording medium has finally been determined, prevent data recording to this recording medium.
13, a kind of data are recorded in method on the recording medium, comprise: based on to determining that to the final of these recording medium recording data order is recorded in determining in the temporary defect management area territory with precedence record to the tentation data in this recording medium, prevents to these recording medium recording data in response to preventing also.
14, method according to claim 13 wherein, based on the preassigned data in the whole vacant zone that is recorded in the temporary defect management area territory, determines that tentation data is recorded in the temporary defect management area territory.
15, a kind of data are recorded in method on the recording medium, comprise:
Based on the detected final definite sign in the defect management that is recorded in this recording medium (DMA), determine whether this recording medium is finally determined; With
Based on determining that this recording medium has finally been determined, prevent data recording to this recording medium.
16, a kind of data are recorded in method on the recording medium, comprise:, prevent data recording to this recording medium based on being recorded in this recording medium of indication of not comprising in the final defect management (DMA) of determining sign by the final temporary disk (T-disk) defect sturcture (TDDS) that has write down, temporary disk (T-disk) defect list (TDFL) or the space bit map of determining (SBM).
17, method according to claim 16, wherein, TDDS, TDFL and SBM also are recorded in DMA and divide in the temporary defect management area territory (TDMA) of opening.
18, method according to claim 16, wherein, TDDS and SBM are stored in the single zone that separates with the zone that comprises TDFL.
19, a kind of record and/or transcriber comprise:
Pick-up, it is with the data writing recording medium or from the recording medium reading of data; With
Controller, it controls this pick-up data are recorded on this recording medium, but produce the recording status data of the occupied area in the whole data posting field on this recording medium of expression, and the control pick-up is recorded in tentation data in the temporary defect management area territory these recording status data are recorded in the temporary defect management area territory that is distributed on this recording medium and in response to final definite order of sending for the data-recording status of preserving this recording medium, to prevent also at this recording medium identifying recording layer.
20, record according to claim 19 and/or transcriber, wherein, controller is finally determined order in response to this, the control pick-up is duplicating the temporary control and education data that comprise the recording status data that are lastly recorded in the temporary control and education defect area, and the temporary control and education data that will duplicate are recorded in the defect management that is distributed on this recording medium.
21, record according to claim 19 and/or transcriber, wherein, if the defect management of this recording medium comprises the copy that is previously recorded in the temporary control and education data in the temporary defect management area territory that separates with defect management, controller control pick-up no longer is recorded in data on this recording medium so.
22, record according to claim 19 and/or transcriber, wherein, if this temporary defect management area territory comprises this tentation data, controller is by being determined that by what finally determine controlling pick-up is recorded in data on this recording medium again to this recording medium so.
23, record according to claim 19 and/or transcriber, wherein, this controller is controlled this pick-up this tentation data is recorded in the whole vacant zone in this temporary defect management area territory.
24, record according to claim 19 and/or transcriber, wherein, these recording status data comprise bitmap, this bitmap is distinguished the vacant data area that takies data area and this recording medium of this recording medium in the whole recorded data zone on this recording medium by with different value representation occupied area and vacant zone.
25, record according to claim 24 and/or transcriber, wherein, whether each bitmap designation data has been recorded in each bunch as data record unit.
26, record according to claim 19 and/or transcriber, wherein, this recording medium is an once writing recording medium.
27, a kind of record and/or transcriber comprise:
Pick-up, it is with the data writing recording medium or from the recording medium reading of data; With
Controller, it controls this pick-up data are recorded on this recording medium, and comprise this recording medium of identification by the determining of the final tentation data of determining based on temporary defect management area territory, prevent data recording to this recording medium to this recording medium.
28, record according to claim 27 and/or transcriber wherein, based on the preassigned data in the whole vacant zone that is recorded in the temporary defect management area territory, determine that tentation data is recorded in the temporary defect management area territory.
29, a kind of recording medium that has introducing zone, data area and draw the zone comprises:
The temporary defect management area territory, it is formed on introduces zone, data area and draws in the zone at least one,
The recording status data of wherein discerning the occupied area of this recording medium are recorded in the temporary defect management area territory, wherein, if this recording medium is finally determined, so tentation data is recorded in this temporary defect management area territory to prevent also at this recording medium identifying recording layer.
30, recording medium according to claim 29 also comprises the temporary defect management area territory, and it is formed on introduces the zone and draw in the zone at least one,
Wherein, this defect management comprises the temporary control and education data, and these temporary control and education data comprise the recording status data that are replicated and write down from this temporary defect management area territory that are lastly recorded in this temporary defect management area territory when finally determining this recording medium.
31, recording medium according to claim 29, wherein, the whole vacant zone in temporary defect management area territory comprises the tentation data that writes down when finally determining this recording medium.
32, recording medium according to claim 29, wherein, these recording status data comprise bitmap, this bitmap is discerned occupied area and vacant zone based on the different value in the bitmap, distinguishes the vacant data area that takies data area and this recording medium that is included in this recording medium in the whole recorded data zone on this recording medium.
33, recording medium according to claim 32, wherein, whether each bitmap recognition data has been recorded in each bunch as data record unit in the zone of this recorded data.
34, recording medium according to claim 29, wherein, this recording medium is an once writing recording medium.
35, a kind of method that is used for finally determining recording medium, this method comprises:
Receive the final order of determining, to prevent finally to determine after the recording medium described recording medium to be carried out record; With
In response to the described final order of determining, tentation data is recorded in the vacant zone in temporary defect management area territory of described recording medium.
36, method according to claim 35, wherein, the step of recording scheduled data comprises: described tentation data is recorded in the whole vacant zone in temporary defect management area territory, to prevent that record is carried out in the temporary defect management area territory.
37, method according to claim 35, wherein, described tentation data is " 00h " data.
38, method according to claim 35, wherein:
Described recording medium comprises to be introduced zone, data area and draws the zone;
Introduce the zone and comprise the temporary defect management area territory; And
The temporary defect management area territory comprises bitmap, it has been by having taken and/or vacant zone with the different value representation in the bitmap, distinguishes the vacant data area that takies data area and described recording medium of the described recording medium in the data area of described recording medium.
39, a kind of data are recorded in method on the recording medium, comprise:
Based on the previous tentation data that is recorded to described recording medium of finally determining in response to described recording medium is to be recorded in determining in the vacant zone in temporary defect management area territory, prevents from record is carried out in the temporary defect management area territory of described recording medium.
40, according to the described method of claim 39, wherein, described tentation data is recorded in the whole vacant zone in temporary defect management area territory.
41, according to the described method of claim 39, wherein:
Described recording medium comprises to be introduced zone, data area and draws the zone;
Introduce the zone and comprise the temporary defect management area territory; And
The temporary defect management area territory comprises bitmap, it has been by having taken and/or vacant zone with the different value representation in the bitmap, distinguishes the vacant data area that takies data area and described recording medium of the described recording medium in the data area of described recording medium.
42, a kind of record and/or reproducer comprise:
Pick-up, with data recording to recording medium or from the recording medium reading of data; With
Controller, in response to determining that finally order control pick-up is recorded in tentation data in the temporary defect management area territory of recording medium, described final definite order is used to prevent determine after the described recording medium described recording medium to be carried out record final.
43, according to the described equipment of claim 42, wherein:
Controller control pick-up is recorded in described tentation data in the whole vacant zone in temporary defect management area territory, to prevent that record is carried out in the temporary defect management area territory.
44, according to the described equipment of claim 42, wherein:
Described recording medium comprises to be introduced zone, data area and draws the zone;
Introduce the zone and comprise the temporary defect management area territory; And
The temporary defect management area territory comprises bitmap, it has been by having taken and/or vacant zone with the different value representation in the bitmap, distinguishes the vacant data area that takies data area and described recording medium of the described recording medium in the data area of described recording medium.
45, a kind of record and/or reproducer comprise:
Pick-up, with data recording to recording medium or from the recording medium reading of data; With
Controller, data on the control pick-up reading ﹠ recording medium, and comprise in response to final based on temporary defect management area territory and to determine that order is recorded with the determining of the tentation data that prevents from recording medium is write down, controls pick-up and prevents from record is carried out in the temporary defect management area territory of described recording medium recording medium.
46, according to the described equipment of claim 45, wherein, described tentation data is recorded in the whole vacant zone in temporary defect management area territory.
47, according to the described equipment of claim 45, wherein:
Described recording medium comprises to be introduced zone, data area and draws the zone;
Introduce the zone and comprise the temporary defect management area territory; And
The temporary defect management area territory comprises bitmap, it has been by having taken and/or vacant zone with the different value representation in the bitmap, distinguishes the vacant data area that takies data area and described recording medium of the described recording medium in the data area of described recording medium.
48, a kind of recording medium that has introducing zone, data area and draw the zone comprises:
The temporary defect management area territory, it is formed on introduces the zone and draws in the zone at least one,
Wherein, if described recording medium is determined finally that then tentation data is recorded in the temporary defect management area territory, the temporary defect management area territory of described recording medium is changed/record preventing.
49, according to the described recording medium of claim 48, wherein, the whole vacant zone in described temporary defect management area territory comprises in response to final determines that order is recorded the tentation data that recording medium is write down to prevent.
50, according to the described recording medium of claim 48, wherein, described tentation data is " 00h " data.
51, according to the described recording medium of claim 48, wherein, the temporary defect management area territory comprises bitmap, it has been by having taken and/or vacant zone with the different value representation in the bitmap, distinguishes the vacant data area that takies data area and described recording medium of the described recording medium in the data area of described recording medium.
52, a kind of computer-readable medium, coding has the processing instruction that is used to realize method according to claim 1 that computing machine is carried out on it.
53, a kind of computer-readable medium, coding has the processing instruction that is used to realize method according to claim 12 that computing machine is carried out on it.
54, a kind of computer-readable medium, coding has the processing instruction that is used to realize method according to claim 13 that computing machine is carried out on it.
55, a kind of computer-readable medium, coding has the processing instruction that is used to realize method according to claim 15 that computing machine is carried out on it.
56, a kind of computer-readable medium, coding has the processing instruction that is used to realize method according to claim 35 that computing machine is carried out on it.
57, a kind of computer-readable medium, coding has that computing machine carries out on it is used to realize processing instruction according to the described method of claim 39.
Applications Claiming Priority (7)
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| KR20030014612 | 2003-03-08 | ||
| KR1020030014612 | 2003-03-08 | ||
| KR1020030016499 | 2003-03-17 | ||
| US60/456,940 | 2003-03-25 | ||
| KR1020030023729 | 2003-04-15 | ||
| US60/472,114 | 2003-05-21 | ||
| KR1020030052080 | 2003-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800009405A Division CN100397499C (en) | 2003-03-08 | 2004-03-04 | Method and apparatus for preserving data-recording status of a write-once recording medium, and write-once recording medium therefor |
Publications (2)
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| CN1848253A true CN1848253A (en) | 2006-10-18 |
| CN100405474C CN100405474C (en) | 2008-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100915128A Expired - Fee Related CN101261869B (en) | 2003-03-08 | 2004-03-04 | Write and/or reproducing apparatus |
| CN2007101022012A Expired - Fee Related CN101067950B (en) | 2003-03-08 | 2004-03-04 | Recording method |
| CN2007101675470A Expired - Fee Related CN101197169B (en) | 2003-03-08 | 2004-03-04 | Method of preserving data-recording status of recording medium |
| CN2007101022027A Expired - Lifetime CN101067951B (en) | 2003-03-08 | 2004-03-04 | Recording and/ or reproduction device |
| CNB2006100790778A Expired - Lifetime CN100405474C (en) | 2003-03-08 | 2004-03-04 | Method and apparatus for preserving data-recording status of a write-once recording medium, and write-once recording medium therefor |
| CNB2004800009405A Expired - Lifetime CN100397499C (en) | 2003-03-08 | 2004-03-04 | Method and apparatus for preserving data-recording status of a write-once recording medium, and write-once recording medium therefor |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100915128A Expired - Fee Related CN101261869B (en) | 2003-03-08 | 2004-03-04 | Write and/or reproducing apparatus |
| CN2007101022012A Expired - Fee Related CN101067950B (en) | 2003-03-08 | 2004-03-04 | Recording method |
| CN2007101675470A Expired - Fee Related CN101197169B (en) | 2003-03-08 | 2004-03-04 | Method of preserving data-recording status of recording medium |
| CN2007101022027A Expired - Lifetime CN101067951B (en) | 2003-03-08 | 2004-03-04 | Recording and/ or reproduction device |
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| CNB2004800009405A Expired - Lifetime CN100397499C (en) | 2003-03-08 | 2004-03-04 | Method and apparatus for preserving data-recording status of a write-once recording medium, and write-once recording medium therefor |
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| CN (6) | CN101261869B (en) |
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| KR101244296B1 (en) | 2003-04-14 | 2013-03-18 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Device for and method of recording information |
| US20100018463A1 (en) * | 2008-07-24 | 2010-01-28 | Chen-Hua Yu | Plural Gas Distribution System |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3855390B2 (en) * | 1997-09-16 | 2006-12-06 | ソニー株式会社 | Recording apparatus, recording method, and disk-shaped recording medium |
| KR100677066B1 (en) * | 1998-10-10 | 2007-02-01 | 삼성전자주식회사 | Disc having spare area for defect management and method for allocating spare area |
| JP2000293971A (en) * | 1999-04-06 | 2000-10-20 | Minolta Co Ltd | Picture recording and reproducing device |
| JP2001283463A (en) * | 2000-03-31 | 2001-10-12 | Ricoh Co Ltd | Information recording medium and information recording/ reproducing method |
| US6845473B2 (en) * | 2000-04-08 | 2005-01-18 | Samsung Electronics Co., Ltd. | Method of verifying defect management area information of optical disc |
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2004
- 2004-03-04 CN CN2008100915128A patent/CN101261869B/en not_active Expired - Fee Related
- 2004-03-04 CN CN2007101022012A patent/CN101067950B/en not_active Expired - Fee Related
- 2004-03-04 CN CN2007101675470A patent/CN101197169B/en not_active Expired - Fee Related
- 2004-03-04 CN CN2007101022027A patent/CN101067951B/en not_active Expired - Lifetime
- 2004-03-04 CN CNB2006100790778A patent/CN100405474C/en not_active Expired - Lifetime
- 2004-03-04 CN CNB2004800009405A patent/CN100397499C/en not_active Expired - Lifetime
Also Published As
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| CN100397499C (en) | 2008-06-25 |
| CN101067951B (en) | 2010-06-02 |
| CN101067951A (en) | 2007-11-07 |
| CN101261869A (en) | 2008-09-10 |
| CN100405474C (en) | 2008-07-23 |
| CN101067950A (en) | 2007-11-07 |
| CN101261869B (en) | 2010-09-22 |
| CN101067950B (en) | 2011-04-13 |
| CN1701359A (en) | 2005-11-23 |
| CN101197169B (en) | 2010-11-17 |
| CN101197169A (en) | 2008-06-11 |
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