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 region occupied of this recording medium in the recordable zone of whole data on this recording medium and the unappropriated zone of this recording medium by zone that taken with value representations different in the bitmap and/or unappropriated.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.
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 of recent renewal #n, 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.
Controller 2 is followed and is verified after with the predetermined unit record data that therein the data that write down are to find the method that writes the back checking of defective data.Therefore, controller 2 with predetermined unit record data and the data that write down of checking with the defect recognition data.Controller 2 produces indicates the defective data that finds during verifying to be stored in the TDFL and the TDDS in zone wherein.Controller 2 is stored in TDFL and TDDS in the storer 3, collects the TDFL and the TDDS of scheduled volume, and the TDFL that will collect and TDDS are sent to the TDMA that is included in the once writing recording medium 100.
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 of final updated #n, 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.