CN1735934A

CN1735934A - Dish and disc defect management method and equipment with temporary defect management area territory

Info

Publication number: CN1735934A
Application number: CNA2004800021178A
Authority: CN
Inventors: 黄盛凞; 高祯完; 李坰根
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2003-01-13
Filing date: 2004-01-08
Publication date: 2006-02-15
Also published as: KR20040065004A

Abstract

A kind of Write-once disc with at least one recording layer, comprise: the temporary defect management area territory is recorded with the temporary defect management information that is used for managing temporary defect information about the temporary defect information that only detects defective during corresponding recording operation therein; And defect management, the temporary defect information and the temporary defect management information that are recorded in therein in the temporary defect management area territory are recorded as defect information and defect management information respectively.

Description

Dish and disc defect management method and equipment with temporary defect management area territory

Technical field

The present invention relates to defect management, more particularly, relate to a kind of dish and disc defect management method and equipment with temporary defect management area territory (TDMA).

Background technology

Thereby defect management is to be stored in the process of the data degradation that data rewrite in the user data area of the dish that has defective therein causes to the new portion compensation of the data area of dish otherwise by defective.Usually, use linear replacement method or slip replacement method to carry out defect management.In linearity replacement method, exist the user data area of defective to replace therein by the spare data area that does not have defective.In slip replacement method, the user data area with defective is slipped over, and does not have the next user data area of defective to be used.Yet, linear replace and slip replacement method only may be used on dish as DVD-RAW/RW, on this dish, data can be by record repeatedly, and can use method of random access to come executive logging.In other words, be difficult to linearity replaced and slip replacement method is applied to and only allows the Write-once disc that once writes down thereon.

Usually, by data being recorded on the dish and confirming whether data correctly have been recorded in the existence that detects the defective in the dish on the dish.Yet, in case data are recorded on the Write-once disc impossible overwrite new data and management defective wherein.

After the exploitation of CD-R and DVD-R, the high density Write-once disc with tens GB recording capacities is introduced into.Because such dish is inexpensive and the random access of the quick read operation of permission realization, so it can be used as back-up disk.Yet, for the unavailable defect management of Write-once disc.Therefore, during backup operation, when being detected, backup operation can be interrupted when defect area (that is, wherein having the zone of defective).Usually, when system is not used continually (as, at night when system manager's inoperation system), carry out backup operation.In this case, owing to detect the defect area of Write-once disc, so backup operation will be interrupted probably.

Summary of the invention

An aspect of of the present present invention provides a kind of Write-once disc, a kind of disc defect management method and equipment that may be used on this Write-once disc.

An aspect of of the present present invention also provides a kind of dish, and therein,, therefore allow recording operation not have interruptedly and carry out even when during recording operation, detecting disc defect, also can carry out defect management, and a kind of disc defect management method and equipment.

An aspect of of the present present invention also provides a kind of dish, record defect information effectively therein, and a kind of disc defect management method and equipment.

Will be in ensuing description part set forth the present invention other aspect and/or advantage, some will be clearly by describing, and perhaps can learn through enforcement of the present invention.

According to an aspect of the present invention, a kind of Write-once disc with at least one recording layer is provided, this dish comprises: the temporary defect management area territory, write down therein about the temporary defect information of detected defective and be used to manage the temporary defect management information of this temporary defect information during corresponding recording operation only; And defect management, the temporary defect information and the temporary defect management information that are recorded in therein in the temporary defect management area territory are recorded as defect information and defect management information respectively.

According to a further aspect in the invention, a kind of Write-once disc is provided, this dish comprises: the temporary defect management area territory, write down therein about the temporary defect information of detected defective and be used to manage the temporary defect management information of this temporary defect information during corresponding recording operation only; Finish defect management temporarily, comprise the finishing defect information temporarily and be used to manage this defect management information of temporarily finishing of temporarily finishing defect information and be recorded of at least a portion of the temporary defect information that is recorded in the temporary defect management area territory therein; And defect management, when temporary defect information and temporary defect management information were recorded in the temporary defect management area territory as a pair of information during dish is finished therein, the temporary defect information and the temporary defect management information of all records were recorded as defect information and defect management information respectively.

According to a further aspect in the invention, a kind of method of managing disc defect is provided, comprise: the general only is recorded in the temporary defect management area territory of dish about the information of detected defective in the data in the data area that is recorded in dish during the recording operation with mark i as i temporary defect information, wherein, i is an integer; To be used for managing i temporary defect management of information information and be recorded in the temporary defect management area territory as i temporary defect management information; The mark that record i temporary defect information and record i temporary defect management information is repeated at least once will to be given to simultaneously corresponding recording operation, temporary defect information and temporary defect management information adds 1; Write in the defect management with the temporary defect management information that reads all records and temporary defect information and with it.

According to a further aspect in the invention, a kind of method of managing disc defect is provided, comprise: the piece with predetermined number is that unit is recorded in temporary management information in the temporary defect management area territory as the i temporary management information, described temporary management information comprises that wherein i is an integer about the temporary defect information and the temporary defect management information of the data in the data area that is recorded in dish according to the recording operation with i mark; The mark i that this temporary management information of record is repeated at least once will to be given to simultaneously corresponding recording operation and temporary management information adds 1; When the i temporary management information is recorded k time, to finish defect management information is recorded in and finishes in the defect management temporarily temporarily, wherein, k is the integer more than or equal to 2, describedly finishes the temporary management information that defect management information is based on all records temporarily and obtains; To write down the i temporary management information and repeat, should write down and write down and finish defect management information temporarily and repeat at least once; And the temporary defect management information and the temporary defect information that read all records, and this temporary defect management information and temporary defect information is recorded in the defect management.

According to a further aspect in the invention, provide a kind of record and reproducer, having comprised: record/read the unit is recorded in data on the dish and/or from coiling reading of data; And controller, controlling recording/read unit with will about the Data Detection from the data area that recording operation unit, is recorded in dish to the information of defective be recorded in the temporary defect management area territory as temporary defect information and will be used for managing temporary defect management of information information and be recorded in the temporary defect management area territory.

According to a further aspect in the invention, provide a kind of record and/or reproducer, having comprised: record/read unit is recorded in data that dish is gone up and/or from the dish reading of data; And controller, controlling recording/read unit with will about the Data Detection of the record from the data area that is recorded in dish according to first recording operation to the information of defective be recorded in the temporary defect management area territory as the first temporary defect information; The defect management information that will be used for the first temporary defect information of managing is recorded in the temporary defect management area territory as the first temporary defect management information; Data are recorded in the data area, and the mark i that will be given to corresponding recording operation, temporary defect information and temporary defect management information simultaneously adds 1; And the temporary defect information and the temporary defect management information of all records that will be in defect management during dish is finished read.

According to a further aspect in the invention, provide a kind of record and/or reproducer, having comprised: record/read the unit is recorded in data on the dish and/or from coiling reading of data; And controller, controlling recording/read unit is that unit is recorded in temporary defect management information in the temporary defect management area territory with the piece of predetermined number; And when temporary defect management information is recorded k time, to be recorded in and finish in the defect management temporarily based on all defect management informations of finishing that is recorded in that temporary defect management information in the temporary defect management information obtains temporarily, this management information comprises about the temporary defect information of the data in the data area that is recorded in dish according to recording operation and temporary defect management information.

Description of drawings

In conjunction with the drawings embodiment is described in detail, these and other aspects of the present invention and/or advantage will become apparent and be easier to understand, wherein:

Fig. 1 is the block scheme according to the recording unit of the embodiment of the invention;

Fig. 2 A and 2B illustrate the structure according to the dish of the embodiment of the invention;

Fig. 3 A illustrates the data structure according to the dish of the embodiment of the invention;

Fig. 3 B illustrates the data structure of the dish with the defect management shown in Fig. 3 A (DMA) and interim DMA (TDMA);

Fig. 4 A illustrates data structure according to the TDMA of the embodiment of the invention to 4C;

Fig. 5 A and 5B illustrate respectively according to the temporary defect management information TDDS#i of the embodiment of the invention and the data structure of copy thereof;

Fig. 6 illustrates the data structure of temporary defect information TDFL#i according to another embodiment of the invention;

Fig. 7 illustrates the figure of explanation according to the record of data in user data area A and spare area B of the embodiment of the invention;

Fig. 8 A and 8B illustrate as shown in Figure 7 temporary defect information TDFL#0 and the data structure of TDFL#1;

Fig. 9 illustrates the data structure about the information of defective #i;

Figure 10 is the process flow diagram that illustrates according to the disc defect management method of the embodiment of the invention;

Figure 11 is the process flow diagram that disc defect management method according to another embodiment of the invention is shown;

Figure 12 A illustrates the data structure of dish according to another embodiment of the invention;

Figure 12 B illustrates the data structure that has the DMA shown in Figure 12 A, TDMA and finish the dish of DMA (TFDMA) temporarily;

Figure 13 illustrates according to the TDMA of the embodiment of the invention and the reference diagram of the relation between the TFDMA;

Figure 14 A and 14B illustrate the data structure according to the TFDMA of the embodiment of the invention;

Figure 15 is the process flow diagram that disc defect management method according to another embodiment of the invention is shown; With

Figure 16 is the process flow diagram that disc defect management method according to another embodiment of the invention is shown.

Embodiment

To describe embodiments of the invention in detail now, its example shows that in the accompanying drawings wherein, identical label is represented identical parts all the time.Below, by describing embodiment with reference to the accompanying drawings to explain the present invention.

Fig. 1 is the block scheme according to the recording unit of the embodiment of the invention.This record and/or reproducer comprise: record/read unit 1, controller 2 and storer 3.Record/read unit 1 data are recorded on the dish 100, this dish 100 is the information storage mediums according to the embodiment of the invention.Record/read unit 1 also reads back data with the accuracy of the data of calibration tails from coiling 100.The defect management that controller 2 is carried out according to the embodiment of the invention.In this embodiment, controller 2 uses verify-after-write method, and in the method, data are recorded on the dish 100 with predetermined data unit, and whether the accuracy of the data of record is had defective by verification with the zone of detection dish 100.In other words, controller 2 is that unit records the user data on the dish 100 with the recording operation, and the user data of calibration tails is with the zone that has defective therein of detection dish 100.Thereafter, controller 2 is created the information of position that indication has the zone of defective, and with the information stores created in storer 3.When the amount of canned data reached predetermined degree, controller 2 was recorded in canned data on the dish 100 as temporary defect information.Although describe according to recording unit, should be appreciated that according to a further aspect in the invention, the equipment of Fig. 1 also reproduces data.

According to a further aspect in the invention, recording operation is the operating unit that maybe writing task that is performed is determined according to user's intention.According to this embodiment, recording operation is that graduated dial 100 is loaded into recording unit, and data are recorded on the dish 100 and from the process of recording unit taking-up dish 100.During recording operation, data be recorded with verification at least once.Usually, data be recorded with verification several times.The defect information of using verify-after-write method to obtain is temporarily stored in the storer 3 as temporary defect information.

Be appointed as in addition when finishing to shift out dish 100 or recording operation when the user presses record and/or the ejector button (not shown) of reproducer later at record data, controller 2 expectation recording operations stop.Controller 2 reads defect information from storer 3, provides defect information to record/read unit 1, and controlling recording/read unit 1 defect information is recorded on the dish 100.In the example that illustrates, defect information is recorded on the dish 100 as temporary defect information in recording operation unit.Record defect information in recording operation unit is understood that to write down the information about the defective that detects during corresponding recording operation unit only.Yet, should be appreciated that, can service recorder other definition of operation.

When the record of data is finished (, data will not be recorded on the dish 100 in addition), dish 100 need be finished at last.Controller 2 controlling recording/read unit 1 is rewritten in the defect management (DMA) of dish 100 as defect management information with the temporary defect information that will be stored in the record in the dish 100 and the temporary defect management information of record.

Fig. 2 A and 2B illustrate the structure according to the dish 100 of Fig. 1 of the embodiment of the invention.Fig. 2 A at length illustrates the single record layer disc 100 with recording layer L0.This dish 100 comprises: ingress area, data area and export area.Ingress area is positioned at the inside part of dish 100, and the export area is positioned at the Outboard Sections of dish 100.The data area and is divided into user data area and spare area between ingress area and export area.

User data area is the zone of user data.Spare area is the replacement zone with user data area of defective, and is used for compensating the loss at posting field that is caused by defective.Suppose in dish 100, to produce defective, preferably spare area occupy dish 100 entire data capacity 5%, coil on 100 thereby relatively large data can be recorded in.Yet, should be appreciated that other amount also can be used as spare area.

Fig. 2 B illustrates the double record layer disc 100 with two recording layer L0 and L1.Sequentially form ingress area, data area and exterior lateral area from the inside part of the first recording layer L0 to its Outboard Sections.In addition, the Outboard Sections from the second recording layer L1 sequentially forms exterior lateral area, data area and export area to its inside part.Different with the single record layer disc 100 of Fig. 2 A, the export area is positioned at the inside part of the dish 100 of Fig. 2 B.That is, the dish 100 of Fig. 2 B has contrary orbital path (OTP), therein, since the ingress area of the first recording layer L0 to its exterior lateral area and come record data from the exterior lateral area of the second recording layer L1 to its export area continuously.Spare area is assigned to each among recording layer L0 and the L1.

In this embodiment, spare area is between ingress area and the user data area and between user data area and the exterior lateral area.Yet if necessary, the part of user data area can be used as another spare area.That is, may reside between ingress area and the export area more than a spare area.Yet the position of spare area is not limited to this layout.

For defect management, dish 100 according to an aspect of the present invention comprises temporary defect management area territory (TDMA) or comprises TDMA and finish DMA (TFDMA) temporarily.Below, be described in shown in Fig. 3 A according to the defect management of the use TDMA of the embodiment of the invention with in the two defect management of the use TDMA according to another embodiment of the present invention shown in Figure 12 A and TFDMA.

Fig. 3 A illustrates the data structure according to the dish 100 of Fig. 2 of the embodiment of the invention and Fig. 2 B.With reference to figure 3A, are single record layer disc of Fig. 2 A as fruit tray 100, then in ingress area, form defect management (DMA) and interim DMA (TDMA).Perhaps, DMA can be included in ingress area and export area in the two, or TDMA also can be included in the export area.That is, DMA and TDMA can be arranged at least one of ingress area and export area.As fruit tray 100 are the double record layer disc shown in Fig. 2 B, and then DMA and TDMA lay respectively at the ingress area and the export area of the inside part that is positioned at dish 100.DMA also can be included in the export area and the exterior lateral area of the Outboard Sections that is arranged in dish 100.Therefore, according to an aspect of the present invention, DMA and TDMA are arranged at least one of ingress area, export area and exterior lateral area.

Usually, the information about the disc defect in the management dish 100 is recorded among the DMA.This information specify or comprise the structure of the dish 100 that is used for defect management, whether defect management be performed, defect information, the position of defect information and the position and the size of spare area.In this embodiment, because dish 100 is Write-once discs, so when above information changed, formerly new data was recorded after Ji Lu the data.

Usually, when dish 100 when being loaded into record as shown in Figure 1 and/or reading equipment, this equipment is from coiling 100 ingress area and export area reading of data to determine how to manage dish 100 and data are recorded on the dish 100 or from coiling 100 reading of data.Yet, increase if be recorded in the amount of the data in ingress area and/or the export area, after the dish 100 of packing into, prepare record or reproduce data to take a long time.In order to address this problem, an aspect of of the present present invention is used the temporary defect management information and the temporary defect information that will be recorded among the TDMA.TDMA is assigned to the ingress area and/or the export area of dish 100, and separates with DMA.That is, the defect information and the defect management information that only are used for carrying out the required last record of defect management are recorded in DMA, thereby have reduced record/read 1 pair of required quantity of information of recoding/reproduction operation in unit.

In the illustrated embodiment, owing to use linear replacement method to carry out defect management,, temporary defect information has the information of position in zone of replacement in the zone of defective so comprising the conduct of the information of position in the zone with defective of display disc 100 and display disc 100.Although not necessary, best, temporary defect information comprises that also the indication defective results from single defect block and results from information in the continuous defect piece physically.Temporary defect management information is used to managing temporary defect information, and comprises that indication is recorded in the information of the position of the temporary defect information on the dish 100.To explain the detailed data structure of temporary defect information and temporary defect management information later on.Should be appreciated that temporary defect information can comprise out of Memory, and other method of defect management can be used.

In the illustrated embodiment, temporary defect information and temporary defect management information are recorded when recording operation finishes.In TDMA, be registered as temporary defect information #0 about the information of the defective that in the data that during recording operation #0, write down, produces with about the information of its replacement, be registered as temporary defect information #1 about the information of the defective that in the data that during recording operation #1, write down, produces with about the information of its replacement.In addition, the management information that is used for managing temporary defect information #0, #1 is recorded in TDMA as temporary defect management information #0, #1, and this management information is specified the record position of temporary defect information #0, #1.When other data can not be recorded in the data area or the user does not wish that with other data recording the temporary defect information and the temporary defect management information that are recorded among the TDMA are re-written among the DMA wherein when (that is, need dish finishes).

Owing to following reason, temporary defect information and temporary defect management information are re-written among the DMA.When data will not be recorded on the dish 100 in addition (, dish 100 need be done), the temporary defect management information and the temporary defect information that only have been updated last record are several times recorded among the DMA once more.Therefore, record/reading unit 1 can only come to read defect management information from coiling 100 apace by the defect management information that reads last record, thus the fast initialization of realization dish 100.In addition, temporary defect information and temporary defect management information are recorded in the reliability of the information that increased among the DMA.

In this embodiment, being included in temporary defect information #0, the #1 of precedence record and the defect information among the #i-1 is not included among the temporary defect information #i.That is, only be included among the temporary defect information #i about the information of the defective that during corresponding recording operation #i, detects.For example, temporary defect information #0 specifies in the defective that detects during the recording operation #0, and temporary defect information #1 specifies the defective that only detects during recording operation #1.Therefore, can use the posting field of TDMA effectively.In other words, comprise that the posting field of ingress area (or export area or exterior lateral area) of TDMA is less than the data area of user data.Yet, if be recorded to comprise that before data were filled in the data area, data also can not be recorded among the TDMA about all information of the defective that detects during the recording operation formerly about the information of the defective that when executive logging is operated, detects.Therefore, in this embodiment, temporary defect information only comprises the information about the defective that detects during relevant recording operation.On the contrary, during dish was finished, all defect information that are included among temporary defect information #0, #1, #2, the #i were read and are written among the DMA.

Under the situation of compact disc, expect one bunch and be assigned to the zone of writing down temporary defect management information #i therein that four to eight bunches are assigned to the zone of writing down temporary defect information #i therein with tens GB recording capacities.Although this is because the amount of temporary defect information #i only is several KB, when the minimal physical unit that is easy to act as record most is bunch, bunch being that the unit record fresh information comes lastest imformation.The total amount of the defective that in dish, allows preferably disk recording capacity 5%.For example, the information about defective considered be 8 byte longs and bunch size be that 64KB is long, about four to eight bunches are required and write down temporary defect information #i.

Can also carry out verify-after-write method to temporary defect information #i and temporary defect management information #i.When detecting defective, the information that is recorded in the zone with defective of dish can use linear the replacement to be recorded in the spare area, perhaps using slides replace be recorded in the TDMA adjacent areas in.

Fig. 3 B illustrates the data structure of the dish with the TDMA shown in Fig. 3 A and DMA.With reference to figure 3B, two DMA (that is, DMA#1 and DMA#2) are formed to increase the robustness of defect management information and defect information.TDMA represents the temporary defect management area territory; Test chart is shown in the wherein zone of the record condition of measurement data; Driver and dish information are therein about at record and/or reproduce the information of the driver that operating period uses and the zone that dish information is recorded; Impact damper 1, impact damper 2 and impact damper 3 are the impact dampers on each regional border of indication.

Fig. 4 A illustrates the data structure according to the temporary management information TDMA of the embodiment of the invention.With reference to figure 4A, corresponding temporary defect information and temporary defect management information are recorded among the TDMA as a pair of information.More particularly, sequentially write down temporary management information TDMA#0 and TDMA#1 from the initial beginning of TDMA.A pair of corresponding temporary defect management TDDS#0 and temporary defect information TDFL#0 are included among the temporary management information TDMA#0 twice.A pair of corresponding temporary defect management TDDS#1 and temporary defect information TDFL#1 are included among the temporary management information TDMA#1 twice.The reason that the record identical information is twice is the reliability and the robustness of the information that increases.Temporary defect management information TDDS#0, #1 specify the position of corresponding temporary defect information TDFL#0, #1 respectively.Each temporary defect management information is also specified the position that just in time is recorded in its corresponding temporary defect information temporary defect information before.For example, temporary management information TDMA#1 sequentially comprises a pair of temporary defect information TDFL#1 and temporary defect management information TDDS#1, and the copy of temporary defect information TDFL#1 and temporary defect management information TDDS#1.Temporary defect management information TDDS#1 comprises about temporary defect information TDFL#1 and just in time is recorded in the positional information of the copy of the temporary defect information TDFL#0 before the temporary defect information TDFL#1.The copy of temporary defect management information TDDS#1 comprises about the positional information of the copy of its corresponding temporary defect information TDFL#1 with about the positional information of temporary defect information TDFL#1.As mentioned above,, then compare, can read the temporary defect information of all records more quickly with writing down temporary defect information cumulatively if temporary defect management information is also specified the position that just in time is recorded in corresponding temporary defect information temporary defect information before.The number of record temporary defect management information TDDS#0, #1 and temporary defect information TDFL#0, #1 is not limited.

Fig. 4 B illustrates the data structure of TDMA according to another embodiment of the invention.Compare with the TDMA of Fig. 4 A, corresponding temporary defect information and temporary defect management information are recorded among the TDMA of Fig. 4 B as a pair of information, but the order difference of recorded information.More particularly, the end from TDMA begins sequentially temporary management information #0, #1.A pair of corresponding temporary defect management TDDS#0 and temporary defect information TDFL#0 are recorded among the temporary management information TDMA#0 twice.A pair of corresponding temporary defect management TDDS#1 and temporary defect information TDFL#1 are recorded among the temporary management information TDMA#1 twice, thus the reliability and the robustness of the information of increasing.Temporary defect management information TDDS#0, #1 specify their corresponding temporary defect information TDFL#0, the position of #1 respectively.Each temporary defect management information is also specified the position that just in time is recorded in its corresponding temporary defect information temporary defect information before.For example, temporary management information TDMA#1 sequentially comprises a pair of temporary defect information TDFL#1 and temporary defect management information TDDS#1, and the copy of temporary defect information TDFL#1 and temporary defect management information TDDS#1.In addition, temporary defect management information TDDS#1 comprises about temporary defect information TDFL#1 and just in time is recorded in the positional information of the copy of the temporary defect information TDFL#0 before the temporary defect information TDFL#1.The copy of temporary defect management information TDDS#1 comprises the positional information about the copy of its corresponding temporary defect information TDFL#1, and about the positional information of temporary defect management information TDFL#1.

Fig. 4 C illustrates the data structure of TDMA according to another embodiment of the invention.Compare with the TDMA shown in the 4B with Fig. 4 A, corresponding temporary defect information and temporary defect management information are recorded among the TDMA of Fig. 4 C twice as a pair of information, and this is to recording of information position difference.More particularly, the TDMA of Fig. 4 C is divided into two parts, and temporary management information TDMA#i is recorded in the different parts with its copy.Yet TDMA can be divided into more than two parts, and temporary management information TDMA#i can be recorded more than twice.

To shown in the 4C, when the temporary defect information that constitutes temporary management information TDMA#i and temporary defect management information were recorded among the TDMA, this information was that unit is recorded as a pair of information with the piece of predetermined number as Fig. 4 A.For example, the temporary defect information TDFL#1 temporary defect management information TDDS#1 of formation temporary management information TDMA#1 is recorded in the piece together.In addition, the copy of the copy of temporary defect information TDFL#1 and temporary defect management information TDDS#1 is recorded in the piece together.

Equally, corresponding temporary defect information and temporary defect management information are recorded in the piece of predetermined number as a pair of information, thereby make that writing down many big or small of zone to temporary defect information and temporary defect management information therein equates mutually.

Fig. 5 A illustrates the data structure of temporary defect management information TDDS#i.With reference to figure 5A, temporary defect management information TDDS#i comprises: the identifier of temporary defect management information TDDS#i, just in time be recorded in the pointer of the record position of the pointer of record position of copy of the temporary defect information TDFL#i-1 before the corresponding temporary defect information TDFL#i and temporary defect information TDFL#i.

Fig. 5 B illustrates the data structure of the copy of temporary defect management information TDDS#i.With reference to figure 5B, the copy of temporary defect management information TDDS#i comprises: the pointer of the record position of the copy of the identifier of the copy of temporary defect management information TDDS#i, the pointer of record position that is recorded in the temporary defect information TDFL#i among the temporary defect management information TDDS#i and temporary defect information TDFL#i.

Fig. 6 illustrates the data structure of temporary defect information TDFL#i.With reference to figure 6, temporary defect information TDFL#i comprises: the identifier of temporary defect information TDFL#i and about the information of the defective that detects during corresponding recording operation #i.That is, the information about the defective that detects during formerly recording operation #0, #1 and the #i-1 is not included among the temporary defect information TDFL#i.Here, about the information indication defective of defective and the position of replacement thereof, and indication is to produce defective in single defect block or in the continuous defect piece.

Fig. 7 is the reference diagram that is shown specifically according to the record of data in user data area A and spare area B of the embodiment of the invention.According to an aspect of the present invention, can or bunch be that unit comes deal with data with the sector.The sector is represented can be in the file system of computing machine or the least unit of the data in the application program.Bunch expression can once physically be recorded in the least unit of the data on the dish.Usually, one or more sectors constitute bunch.

There is two types sector: physical sector and logic sector.Physical sector is the zone of writing down a sectors of data therein on the dish.The address that is used to detect physical sector is known as physical sector number (PSN).Logic sector is the unit that can be managed in file system or application program by its data.The address that is used to detect logic sector is known as logic sector number (LSN).The dish record as shown in Figure 1/equipment of reading uses PSN to detect the record position of the data on the dish 100.In about data computing machine or application program, all data are that unit is managed with LSN, and the position of data uses LSN detected.Based on the original records position whether dish 100 comprises defective and data, LSN and PSN are by record/read controller 2 mappings of equipment.

With reference to figure 7, user data area A and spare area B comprise the PSN that sequentially is assigned to a plurality of sectors (not shown).Usually, each LSN is corresponding at least one PSN.Yet, because LSN is assigned to the non-defect area that comprises the replacement zone that is recorded among the spare area B, so when coiling 100 when having defect area, even the size of physical sector and logic sector is big or small identical, the correspondence between PSN and the LSN is not held yet.

In user data area A, come user data with continuous recording pattern or recorded at random pattern.Under the continuous recording pattern, user data is by order and record continuously.Under the recorded at random pattern, the user data quilt is record randomly.In user data area A, the predetermined unit of section 1001 to 1007 expression data is carried out verify-after-write method therein.Recording unit records the user data in the section 1001, turns back to the initial of section 1001, and whether the inspection user data is correctly write down or have defective in section 1001.If detect defective in the part of section 1001, then this part is designated as defective #1.The user data that is recorded among the defective #1 also is recorded on the part of spare area B.Here, this part that is recorded in that data among the defective #1 are overwritten at wherein spare area B is known as and replaces #1.Next, recording unit records the user data in the section 1002, turns back to the initial of section 1002, and whether the inspection data are correctly write down or have defective in section 1002.If detect defective in the part of section 1002, then this part is designated as defective #2.Equally, replacing #2 accordingly with defective #2 is formed among the spare area B.In addition, given defect #3 and replace #3 in the section 1003 of user data area A and spare area B respectively.In section 1004, do not produce defective, defect area does not have designated.

After data recording and verification to section 1004, when recording operation #0 expectation finishes (, when the record of pressing the ejector button of recording unit or being assigned to the user data in the recording operation as the user is finished), recording unit will be recorded among the TDMA as temporary defect information TDFL#0 about the defective #1, the #2 that produce in section 1001 to 1004 and the information of #3.In addition, the management information that is used for managing temporary defect information TDFL#0 is recorded in TDMA as temporary defect management information TDDS#0.

As the explanation to section 1001 to 1004, when recording operation #1 began, data were recorded in the section 1005 to 1007, and defective #4 and defective #5 and replacement #4 and #5 are respectively formed among user data area A and the spare area B.If second recording operation expectation finishes, then recording unit will be about the information of defective #4 and #5 as temporary defect information TDFL#1 record, with the information record once more that is included among the defect information TDFL#1.Thereafter, the temporary management information that is used for managing this temporary defect information TDFL#1 is recorded in TDMA as temporary defect management information TDDS#1.

Fig. 8 A and 8B illustrate as explaining the temporary defect information TDFL#0 of record and the data structure of #1 with reference to figure 7.Fig. 9 illustrate about as explain the data structure of information of the defective #i of record with reference to figure 7.With reference to figure 8A and Fig. 8 B, temporary defect information TDFL#0 has described the defective that detects during recording operation #0.That is, temporary defect information TDFL#0 comprises the information about defective #1, #2 and #3.Indicate the position in the zone of the position in the zone that has defective #1 therein and the #1 of record replacement therein about the information of defective #1.Indicate the position in the zone of the position in the zone that has defective #2 therein and the #2 of record replacement therein about the information of defective #2.Indicate the position in the zone of the position in the zone that has defective #3 therein and the #3 of record replacement therein about the information of defective #3.

Temporary defect information TDFL#1 describes the defective that only detects during recording operation #1.That is, temporary defect information TDFL#1 comprises the information about defective #4 and #5.According to an aspect of the present invention, the defective that only during corresponding recording operation, detects of temporary defect information description.For finishing of dish, all temporary defect information that are recorded among the TDMA must be read and write among the DMA.Therefore, as previous mentioned with reference to figure 4A, 4B, 5A and 5B, temporary defect management information comprises about the information of the position of corresponding temporary defect information with about the information of the position that just in time is recorded in the temporary defect information before this corresponding temporary defect information.Therefore, compared by record cumulatively, can read the temporary defect information of all records more apace with the temporary defect information of all records.

Fig. 9 illustrates the data structure about the information of defective #i according to the embodiment of the invention.With reference to figure 9, about pointer and the corresponding pointer of replacing #i of the information description defective #i of defective #i.In addition, although be not necessary in all respects, can comprise also that about the information of defective #i indication is the status information that produces defective #i or produce defective #i in the continuous defect piece in single defect block.It is optional that status information is included in the information about defective #i.If in the continuous defect piece, produce defective #i, then status information represents that also the pointer of defective #i is that the initial of sensing continuous defect piece or the pointer of the end of pointing to the continuous defect piece and replacement #i are the end of pointing to initial or this replace block of sensing of the replace block of replacing defective #i.Indicating the pointer of defective #i when status information is the initial of continuous defect piece, and when the pointer that #i is replaced in indication is replace block initial, the pointer of defective #i is represented the initial physical sector number of continuous defect piece, the initial physical sector number that the pointer of replacement #i represents to replace #i.On the contrary, indicating the pointer of defective #i when status information is the end of continuous defect piece, when the pointer of indication replacement #i was the end of replace block, the pointer of defective #i was represented the end physical sector number of continuous defect piece, the end physical sector number that the pointer of replacement #i represents to replace i.Even without being that unit writes down the information about defective with the piece, at least two of user mode information exist the definition of the continuous defect piece of defective to realize effective record of information therein and save record space.Here, this piece is represented the logical record unit of data.

Initial and/or the end point of the pointer given defect #i of defective #i.The pointer of defective #i can comprise the initial PSN of defective #i.Replace the pointer of #i and specify the initial and/or end point of replacing #i.The pointer of replacing #i also can comprise the initial PSN that replaces #i.

Below, will the embodiment according to the dish 100 of the embodiment of the invention shown in the disc defect management method according to an aspect of the present invention of the record cell 1 that uses Fig. 1 and Fig. 3 A be described with reference to the accompanying drawings.

Figure 10 is the process flow diagram that illustrates according to the disc defect management method of the embodiment of the invention.With reference to Figure 10, the recording unit of Fig. 1 will be recorded in as the first temporary defect information about the information according to the data of first recording operation record among the TDMA of dish 100 (operation 1001).This process is used for managing disc defect.The temporary management information that recording unit will be used for the first temporary defect information of managing is recorded in TDMA (operation 1002) as the first temporary defect management information.Whether check needs to coil 100 finish (operation 1003).If do not need in operation 1003, to determine to coil 100 finish, then to operate 1001 and 1002 and be repeated, the mark that will be given to each recording operation, temporary defect information and temporary defect management information simultaneously adds 1 (1004).Yet if determine to need dish to finish in operation 1003, the temporary defect management information of all records and temporary defect information are read and are recorded in (operation 1005) among the DMA.That is, so the temporary defect management information of record and temporary defect information are recorded among the DMA as final defect management information and final defect information respectively.Final defect information and final defect management information can be repeated to write down to increase the reliability of Data Detection.In addition, can carry out verify-after-write method to final defect management information and final defect information.If detect defective from this information, the zone that comprises data of then coiling 100 zone and following with this defective can be considered to disabled (promptly, this zone is designated as defect area), final defect management information and final defect information can be recorded in after this defect area once more.

Figure 11 is the process flow diagram that illustrates according to the disc defect management method of the embodiment of the invention.With reference to Figure 11, the recording unit of Fig. 1 records the user data in the data area of dish 100 with the unit of data, so that verify-after-write method (operation 1101).The data of record are by the zone with defective (operation 1102) of verification with detection dish 100 in operation 1101.It is defect area that the controller 2 of Fig. 1 is specified the zone with this defective, controlling recording/read unit 1 will be recorded in data rewrite in the defect area to spare area, replace the zone to set up, and set up the given defect zone and replace the pointer information (operation 1103) of the position in zone.This pointer information is recorded in (operation 1104) in the storer 3 of Fig. 1 as the first temporary defect information.The first temporary defect information also can comprise describing and is in single defect block or produces the status information of defective in the continuous defect piece.Check whether the current record operation expects to finish (operation 1105).If determine that in operation 1105 this recording operation is not finished by expectation, then operate 1101 to 1104 and be repeated until that this recording operation finishes.

If determine that in operation 1105 recording operation may finish (promptly, when being done) according to user input or according to the record of the first recording operation user data, controller 2 controlling recording/read unit 1 to read the first temporary defect information then from storer 3, and this first temporary defect information is recorded in (operation 1106) among the TDMA as the first temporary defect information TDFL#0.The management information that is used for managing the first temporary defect information TDFL#0 is recorded in TDMA twice as the first temporary defect management information TDDS#0, and this first temporary defect management information TDDS#0 just in time is recorded in (operation 1107) after the first temporary defect information TDFL#0.Should be appreciated that the number of times of record temporary defect management information and temporary defect information is not limited.Whether check needs dish to finish (operation 1108).If in operation 1108, not need to determine dish to finish, then operate 1101 and be repeated to 1107.When operation 1101 to 1107 was repeated, the mark that is given to recording operation, temporary defect information and temporary defect management information added 1 (operation 1109).Yet temporary defect information TDFL#1 only specifies the information about the defective that detects during recording operation #1.That is, temporary defect information TDFL#1 does not comprise the information about the defective that detects during the recording operation #0 formerly.In addition, temporary defect management information TDDS#1 describes the position of corresponding temporary defect information TDFL#1 and just in time is recorded in the position of the temporary defect information TDFL#0 before the temporary defect information TDFL#1.

If in operation 1108, determine to need dish to finish, then the temporary defect information TDFL#0 of all records, #1, #i-1 and temporary defect management information TDDS#0, #1 ..., #i-1 is recorded in (operation 1110) among the DMA as final defect information DFL and final defect management information DDS respectively.Final defect information DFL and final defect management information DDS can repeatedly be write down several times to increase the reliability of Data Detection.Similarly, can carry out verify-after-write method to final defect information and defect management information.If in this information, detect defective, then Pan zone and the ensuing zone that comprises data with this defective can be considered to disabled (promptly, this zone is designated as defect area), final defect management information and defect information can be recorded in after the defect area once more.

Figure 12 A illustrates the data structure of the dish 100 of Fig. 2 according to another embodiment of the invention.With reference to figure 12A, are the single record layer disc shown in Fig. 2 A as fruit tray 100, then defect management (DMA), temporary defect management area territory (TDMA), finish in the ingress area that defect management (TFDMA) is formed on dish 100 temporarily.In addition, DMA also can be formed in the export area.Perhaps, the export area can comprise TDMA and TFDMA.That is, DMA, TDMA and TFDMA can be present at least one of ingress area and export area.As fruit tray 100 are the double record layer disc shown in Fig. 2 B, and then DMA, TDMA and TFDMA are present in the ingress area and export area of the inside part that lays respectively at dish 100.DMA also can be included in the export area and the exterior lateral area of the Outboard Sections that is arranged in dish 100.Therefore, DMA and TDMA are present at least one of ingress area, export area and exterior lateral area.

According to this embodiment and to explain similarly at the embodiment shown in Fig. 3 A, temporary defect management information and temporary defect information (constituting temporary management information together) are recorded among the TDMA.TDMA is assigned to the ingress area and/or the export area of separating with DMA.If temporary defect information is recorded above predetermined times, then the temporary defect information of all records is read from TDMA, and is recorded among the TFDMA.Even before dish is finished, if defect information is required the user data that for example is used for reproducing the data area that is recorded in dish 100, the temporary defect information that reads all records from isolated area can spend the considerable time.Therefore, even before dish is finished, the temporary defect information of record is read from isolated area, and is recorded in same area, reads the time quantum that defect information spends thereby reduced.

During dish was finished, the temporary defect information of all records and temporary defect management information were recorded among the DMA as final information.In this embodiment, owing to use linear replacement method to carry out defect management,, temporary defect information has the information of position in zone of replacement in the zone of defective so comprising the conduct of the information of position in the zone with defective of display disc 100 and display disc 100.Temporary defect management information is used to managing temporary defect information, and comprises the information about the position that is recorded in the temporary defect information on the dish 100.

In this embodiment, at every turn when recording operation finishes temporary defect information and temporary defect management information be recorded.In TDMA, be registered as temporary defect information TDFL#1 about the information of the defective that produces in the data that during recording operation #1, write down with about the information of replacing the zone.Be registered as temporary defect information TDFL#2 about the information of the defective that produces in the data that during recording operation #2, write down with about the information of replacing the zone.In addition, the management information that is used for managing temporary defect information TDFL#1, #2 is recorded in TDMA as temporary defect management information TDDS#1, #2.According to an aspect of the present invention, this management information is specified the position of temporary defect information TDFL#1, #2.In this embodiment, being included in temporary defect information TDFL#1, the #2 of precedence record and the defect information among the #i-1 is not included among the temporary defect information TDFL#i.That is, only be included in the temporary defect information TDFL#i about the information of the defective that during corresponding recording operation #i, detects from posting field.Therefore, can be minimized, therefore realize effective use of the posting field of TDMA about the amount of the information of defective.In other words, comprise that the posting field of ingress area (or export area or exterior lateral area) of TDMA is less than the data area of user data.Yet if be recorded all information that comprise about the defective that detects during the recording operation formerly about the information of the defective that detects when executive logging is operated, before data were filled in the data area, data also can not be recorded among the TDMA.Therefore, in this embodiment, the defect information that only is used for relevant recording operation is registered as temporary defect information.

When the number of the number of times that writes down temporary defect information reached predetermined number k, the temporary defect information of all records was written among the TFDMA.If necessary,, thereby quickened data recording even the temporary defect information of all records is recorded among the TFDMA as finish defect management information temporarily before dish is finished.

When other data can not or will no longer be recorded in the data area (, need dish to finish), the defect information that is recorded in the temporary defect information area is recorded among the DMA with the defect management information that is recorded among the TDMA.Finish for dish, must be read and write among the DMA about the temporary defect information #1 that is included in record, all information of defective among #2, the #i.Therefore, the defect management information of temporarily finishing that is lastly recorded among the TFDMA is at first read.Then, other temporary defect information is read from TDMA.Therefore, compare, can obtain the information of expecting more apace with there not being TFDMA.

Can carry out verify-after-write method to temporary defect information TDFL#i and temporary defect management information TDDS#i respectively therebetween.When detecting defective, the information that can use linear replacement method will be recorded in the zone with defective of dish is recorded in the spare area, perhaps use slip replacement method with this information be recorded in the TDMA adjacent areas in.

Figure 12 B illustrates the data structure of the dish with the TDMA shown in Figure 12 A, DMA and TFDMA.With reference to figure 12B, two DMA (being DMA#1 and DMA#2) are formed to increase the robustness of defect management information and defect information.Yet, should be understood that single DMA can be used, can be used more than two DMA.TDMA represents the temporary defect management area territory, TFDMA represents to finish defect management temporarily, test chart is shown in the wherein zone of the record condition of measurement data, driver and dish information are therein about at record and/or reproduce the information, dish information of the driver that operating period is used and the zone that is recorded about the information that dish is finished and the impact damper on impact damper 1, impact damper 2 and impact damper 3 each regional borders of indication.

Figure 13 is the reference diagram that the relation between TDMA and the TFDMA is shown according to an aspect of the present invention.With reference to Figure 13, (that is, in the time of k), the temporary management information of all records is collected and is recorded among the TFDMA as finish defect management information temporarily when record temporary defect information and temporary defect management information are recorded pre-determined number as temporary management information.For example, when temporary defect management information is recorded k time (promptly in TDMA, temporary management information TDMA#1, #2 ..., #k is recorded) time, all temporary management information TDMA#1, #2 ..., #k is collected and be recorded among the TFDMA as finish defect management information TFDMA#1 temporarily.After, when temporary management information is write down k time (promptly once more, temporary management information TDMA#k+1, #k+2, #2k are recorded) time, all temporary management information TDMA#k+1, #k+2, #2k are collected and are recorded among the TFDMA as finish defect management information TFDMA#2 temporarily.

Finish defect management information TFDMA#1 temporarily and comprise all temporary defect information that is included among temporary management information TDMA#1, #2, the #k * n, also comprise information about the record position of next temporary management information TDMA#k * n+1.Therefore, even before dish is finished, record/read unit 1 reads all temporary defect information in the defect management information temporarily finished that is included in the last record that is stored in the TFDMA from the defect management information of finishing of last record temporarily, reads all temporary defect information based on the next temporary management information of information from be stored in TDMA of the position of finishing defect management information about the next one temporarily.Therefore, finish defect management information with record not temporarily and compare, can obtain defect information more apace.

The data structure according to the TDMA of the embodiment of the invention shown in Figure 12 A also can be implemented to shown in the 4C as Fig. 4 A.The data structure of temporary defect management information TDDS#i can be shown in Fig. 5 A.The data structure of the copy of temporary defect management information TDDS#i can be shown in Fig. 5 B.The data structure of temporary defect information TDFL#i can be as shown in Figure 6.

Figure 14 A shows data structure according to the TFDMA of the embodiment of the invention to Figure 14 D.More particularly, Figure 14 A shows the data structure according to the TFDMA of the embodiment of the invention.With reference to figure 14A, sequentially write down from the initial beginning of TFDMA and to finish defect management information TFDMA#1, TFDMA#2, TFDMA#n temporarily.In finishing defect management information TFDMA#n temporarily, accordingly finish defect management information TFDDS#n temporarily and finish defect information TFDFL#n temporarily and comprised reliability and robustness twice with increase information.Finish defect management information TFDDS#n specifies the position of temporarily finishing defect information TFDFL#n accordingly and is lastly recorded in the position of temporarily finishing the defect information among the defect information TFDFL#n temporarily.The let us hypothesis, temporary defect management information is recorded k time, finishes defect management information TFDDS#n temporarily and is recorded.In this case, finish the position that defect management information TFDDS#n describes next temporary management information TDMA#k * n+1 temporarily.Record is finished defect management information TFDDS#n temporarily and finishes the number of times of defect information TFDFL#n temporarily not limited.

Figure 14 B illustrates the detailed data structure of the TFDMA of Figure 14 A.With reference to figure 14B, when temporary management information TDMA is recorded k time, finish temporarily defect management information TFDMA#1, #2 ..., #n is by record respectively.Therefore, finish temporary defect information TDFL#1, #2, the #k * n that defect information TFDFL#n also comprises all records temporarily.Finish defect management information TFDDS#n temporarily and comprise pointer that points to the position of temporarily finishing defect information TFDFL#n accordingly and the pointer that points to the position of next temporary management information TDMA#k * n+1.Here, k represents the integer more than or equal to 2.

Figure 14 C illustrates the data structure of TFDMA according to another embodiment of the invention.Compare with Figure 14 A, be recorded in order difference among Figure 14 C finish defect management information temporarily.More particularly, begin sequentially to write down from the ending of TFDMA and finish defect management information TFDMA#1, TFDMA#2, TFDMA#n temporarily.In finishing defect management information TFDMA#n temporarily, accordingly finish defect management information TFDDS#n temporarily and finish defect information TFDFL#n temporarily and comprised reliability and robustness twice with increase information.Finish defect management information TFDDS#n appointment finishes the position of defect information TFDFL#n temporarily and is included in the position of temporarily finishing the defect information among the defect information TFDFL#n at last accordingly temporarily.For example, TDMA is recorded k time when temporary management information, when finishing defect management information TFDDS#n temporarily and being recorded, finishes the position that defect management information TFDDS#n describes next temporary management information TDMA#k * n+1 temporarily.K is expressed as 2 or bigger integer.

Record is finished defect management information TFDDS#n temporarily and finishes the number of times of defect information TFDFL#n temporarily not limited.

Figure 14 D illustrates the detailed data structure of the TFDMA of Figure 14 C.With reference to figure 14D, when temporary management information TDMA is recorded k time, finish defect management information TFDMA#1, #2, #n quilt record respectively temporarily.In this case, finish temporarily temporary defect information TDFL#1, #2 that defect information TFDFL#n also comprises all records ..., #n.Finish defect management information TFDDS#n temporarily and comprise pointer that points to the position of temporarily finishing defect information TFDFL#n accordingly and the pointer that points to the position of next temporary management information TDMA#k * n+1.Here, k represents the integer more than or equal to 2.

In this embodiment, show as Fig. 7 data are recorded in process in user data area and the spare area.In addition, the data structure of temporary defect information TDFL#0, the #1 that writes down as shown in Figure 7 is respectively shown in Fig. 8 A and the 8B.Figure 9 illustrates the data structure of defective #i.

Below, will describe use the embodiment according to defect management of the present invention of the dish 100 of the recording unit of Fig. 1 and Figure 12 A.Figure 15 is the process flow diagram that illustrates according to the disc defect management method of the embodiment of the invention.With reference to Figure 15, in the recording unit of Fig. 1, n is set to 1 (operation 1201).Here, n is the order of expression recording operation and for being equal to or greater than the variable of 1 integer.Next, for defect management, only about being recorded in (operation 1201) in the temporary defect management area territory (TDMA) as n temporary defect information in information according to the defective in the data of n recording operation record.Next, be used for managing n temporary defect management of information information and be recorded in TDMA (operation 1203) as the n defect management information.With the piece of predetermined number is that corresponding temporary defect information of unit and temporary defect management information can be used as a pair of information and is recorded among the TDMA.

Next, check whether need dish to finish (operation 1204).If in operation 1204, determine, also do not need dish to finish, check then whether n is the multiple (operation 1205) of k.If n is not the multiple of k, then operates 1202 to 1203 and be repeated simultaneously n to be increased by 1 (operation 1208).When determining that n is the multiple of k in operation 1205, the temporary defect information of all records is finished defect information as n/k temporarily and is recorded in and finishes (operation 1206) in the defect management (TFDMA) temporarily.Next, being used for managing n/k finishes the management information of defect information temporarily and finish defect management information about the information of the position of next temporary defect information (and/or temporary defect management information) as n/k temporarily and be recorded in TFDMA (operation 1207).Next, before next one dish was finished, operation 1202 to 1203 was repeated simultaneously n to be added 1, is the multiple of k up to n.

If determining in operation 1204 needs dish to finish, then the temporary defect management information of all records and temporary defect information are read and are recorded in (operation 1209) among the DMA from TFDMA and TDMA.More particularly, being included in all the temporary defect information temporarily finished in the defect management information that are lastly recorded among the TFDMA is read.Then, finish the position that management information is come other the temporary defect information of detection record in TDMA, thereby read this other temporary defect information based on the temporary defect of last record.Next, the temporary defect management information of all records and temporary defect information are recorded among the DMA as final defect management information and defect information respectively.Final defect management information and final defect information can be repeated to write down to increase the reliability of information.In addition, can carry out verify-after-write method to final defect management information and final defect information.If the defective of detecting, then coil 100 zone and the back to back zone that comprises data with this defective can be considered to disabled (promptly, this zone is designated as defect area), final temporary defect management information and temporary defect information can be recorded in after this defect area once more.

Figure 16 is the process flow diagram that illustrates according to the disc defect management method of the embodiment of the invention.With reference to Figure 16, in the recording unit of Fig. 1, n is set to 1 (operation 1301).Recording unit records the user data in the unit of data in the data area of dish 100 to make things convenient for verify-after-write method (operation 1302).Next, the data that write down in operation 1302 are by the zone with defective (operation 1303) of verification with detection dish 100.It is defect area that the controller 2 of Fig. 1 is specified the zone with defective, thereby the data rewrite in this defect area of controlling recording/read will write down unit 1 is set up to spare area and is replaced the zone, sets up the pointer information (operation 1304) that points to defect area and replace the position in zone.This pointer information is recorded in (operation 1305) in the storer 3 of Fig. 1 as temporary defect information.Temporary defect information can comprise that also describing defective betides in the single defect block or the status information in the continuous defect piece.Check whether the current record operation expects to finish (operation 1306).Do not expect to finish if in operation 1306, determine this recording operation, then operate 1302 and be repeated to 1305.

If determine that in operation 1306 recording operation may finish (promptly, when finishing the record of user data) by user data or according to first recording operation, controller 2 controlling recording/read unit 1 to be reading temporary defect information from storer 3, and it is recorded in (operation 1307) among the TDMA as temporary defect information TDFL#1.Temporary defect management information TDDS#1 just in time is recorded in temporary defect information TFDL#1 twice afterwards (operation 1308) as the management information that is used for managing temporary defect information TDFL#1.The number of times of record temporary defect management information and temporary defect information is not limited.Piece with predetermined number is a unit, and corresponding temporary defect information and temporary defect management information can be recorded among the TDMA as a pair of information.

Next, check whether need dish to finish (operation 1309).If determining in operation 1309 does not need dish to finish, then operate 1302 to 1308 and be repeated simultaneously n to be added 1 (operation 1313).Whenever operation 1302 to 1308 when being repeated, the mark of be given to temporary defect information, temporary defect management information, finishing defect information and finish defect management information temporarily temporarily adds 1 (operation 1314).Yet temporary defect information TDFL#i only specifies about in the information of detected defective during the recording operation #i (that is, it does not comprise the information about detected defective during formerly recording operation #1, #2, the #i-1).

If determine that in operation 1310 n is the multiple of k, even then before dish is finished, the temporary defect information of all records is recorded (operation 1311) as finish defect information TFDFL#1 temporarily.Next, be used to manage the management information of temporarily finishing defect information TFDFL#1 and be recorded (operation 1312) as finish defect management information TFDDS#1 temporarily about the information of the position of next temporary defect information TDFL (and/or temporary defect management information TDDS).In addition, when n was the multiple of k, operation 1311 to 1312 was repeated will be given to simultaneously the mark of temporarily finishing defect information TFDFL and temporary defect management information TDDS and adds 1 before the needs dish is finished.

If need in operation 1309, to determine finishing of dish 100, then the temporary defect information TDFL of all records and temporary defect management information TDDS are read from TDMA and TFDMA, and are recorded in (operation 1315) among the DMA as final defect information DFL and defect management information DDS respectively.Final defect information DFL and final defect management information DDS can be repeated to write down several times to increase the reliability of Data Detection.Similarly, can carry out verify-after-write method to final defect information and defect management information.If in this information, detect defective, then Pan zone and the zone that and then comprises data with defective can be considered to disabled (promptly, this zone is designated as defect area), this final temporary defect management information and temporary defect information can be recorded in after this defect area once more.

Utilizability on the industry

As mentioned above, an aspect of of the present present invention provides a kind of disc defect management method that may be used on Write-once disc.Write-once disc according to the embodiment of the invention comprises temporary defect management area territory (TDMA), and the information (that is defect information) about detected defective during each recording operation is recorded therein.Therefore, during dish is finished, all defect information read from TDMA and by immediate record defect management (DMA), therefore realized effective use of the defect management of Write-once disc.Particularly, temporary defect management information is specified the position of corresponding temporary defect information and just in time is recorded in the position of the temporary defect information before this corresponding temporary defect information.Therefore, can quicken to read the temporary defect information of all records.Under the situation of Write-once disc,,, backup operation do not finish so can being had interruptedly owing in the time of user data, also can carry out defect management.In addition because defect information is recorded in the temporary defect information area in recording operation unit, so with each recording operation cumulative record defect information is compared service recorder space more effectively.Therefore, even TDMA is little, also can carry out defect management to the data zone.

Write-once disc comprises TDMA and finishes defect management (TFDMA) temporarily according to another embodiment of the present invention.Information (that is defect information) about detected defective during each recording operation is recorded among the TDMA.When defect information was recorded among the TDMA pre-determined number, the defect information of all records was collected and is recorded among the TFDMA.In addition, even before dish is finished, also be included among the TFDMA about the information of the record position that will be recorded in the next defect information among the TDMA, thereby realized reading fast of defect information.During dish is finished, all the temporary defect information among TDMA and the TFDMA of being recorded in be read and by immediate record in DMA, therefore realize effective use of DMA.

Although be not, should be appreciated that controller 2 can be to use on computer-readable medium calculation of coding machine program to realize the computing machine of this method of the present invention necessary aspect all.This computing machine may be implemented as the chip with firmware, perhaps can be able to programme to carry out the universal or special computing machine of this method.Be also to be understood that this method can be with light medium such as CD-R, DVD-R, blue light and advanced CD (AOD) use.In addition, should be understood that this method can use with rewritable media.

In addition, should be understood that record and/or reproduction units 1 can comprise low wavelength, the high numerical aperture type unit that is used in record tens GB data on the dish 100 in order to realize the recording capacity of tens GB.The example of unit includes but not limited to unit, those and the unit of the unit of Blu-ray Disc compatibility and/or those and advanced CD (AOD) compatibility that those use 405nm optical wavelength and have 0.85 numerical aperture like this.

Although shown particularly and described the present invention with reference to embodiment, but it should be appreciated by those skilled in the art, in the various changes that can make therein under the situation that does not break away from the spirit and scope of the present invention on form and the details, scope of the present invention is limited by claims and its equivalent.

Claims

1, a kind of Write-once disc comprises:

At least one recording layer, record data thereon;

The temporary defect management area territory has about the first temporary defect information of the defective in the data of the record that only detects during corresponding first recording operation of non-recording operation formerly and is used to manage the first temporary defect management information of this first temporary defect information; With

At least one defect management, the temporary defect information and the temporary defect management information that are recorded in therein in the temporary defect management area territory are recorded as defect information and defect management information respectively,

Wherein, this defect information and defect management information and/or this temporary defect information and temporary defect management information is recorded and/or reproducer uses so that the data that are recorded on this at least one recording layer are carried out defect management.

2, Write-once disc as claimed in claim 1, wherein, this at least one defect management comprises at least two defect managements.

3, Write-once disc as claimed in claim 1, wherein, this temporary defect information and temporary defect management information are recorded in the temporary defect management area territory as a pair of information adjacent each other.

4, Write-once disc as claimed in claim 3, wherein, this temporary defect information and temporary defect management information are recorded several times, and this temporary defect management information comprises the information about the position of corresponding temporary defect information.

5, Write-once disc as claimed in claim 3, wherein, this temporary defect management information comprises the information about the position of the previous temporary defect information that writes down in the recording operation formerly before the first temporary defect information.

6, Write-once disc as claimed in claim 1, also be included in wherein to replace to be recorded and replace the zone with the defective in the data of replacing record, wherein, this temporary defect information comprises the pointer of the position of the pointer of the position of pointing to this defective and the replacement that sensing is used for this defective.

7, Write-once disc as claimed in claim 6, wherein, this temporary defect information also comprises specifying and distinguishing this defective and results from status information in continuous defect piece or the single defect block.

8, Write-once disc as claimed in claim 7, wherein, this status information specifies this defective to result from the continuous defect piece and the pointer of the pointer of this defective and this replacement is indicated the reference position of this defective and replacement respectively.

9, Write-once disc as claimed in claim 7, wherein, this status information specifies this defective to result from the continuous defect piece and the pointer of the pointer of this defective and this replacement is indicated the end position of this defective and replacement respectively.

10, a kind of method of managing disc defect comprises:

The information about detected defective in the data in the data area that is recorded in dish during the recording operation with mark i only is recorded in as i temporary defect information in the temporary defect management area territory of dish, and wherein, i is an integer;

To be used for managing i temporary defect management of information information and be recorded in the temporary defect management area territory as i temporary defect management information;

The mark that record temporary defect information and record temporary defect management information is repeated at least once will to be given to simultaneously recording operation, temporary defect information and temporary defect management information adds 1, thereby record only has the temporary defect information and the temporary defect management information of corresponding one defect information that is used for recording operation; With

Read the temporary defect management information of all records and temporary defect information and it is write in the defect management of dish.

11, method as claimed in claim 10, wherein, this is performed after reading and be written in and being recorded in data in the data area according to last recording operation.

12, method as claimed in claim 10, wherein, record temporary defect information and record temporary defect management information comprise from the ending in temporary defect management area territory and beginning sequentially temporary defect information and temporary defect management information as a pair of information record adjacent each other.

13, method as claimed in claim 12, wherein, record temporary defect information and record temporary defect management information comprise with temporary defect information and temporary defect management information record several times.

14, method as claimed in claim 12, wherein, record temporary defect management information comprises that record is about with the information of the position of the corresponding temporary defect information of temporary defect management information with about the information in the position with the temporary defect information that writes down during another recording operation of i-1 mark at least.

15, method as claimed in claim 10, wherein, record temporary defect information and record temporary defect management information comprise from the ending in temporary defect management area territory and beginning sequentially temporary defect information and temporary defect management information as a pair of information record adjacent each other.

16, method as claimed in claim 15, wherein, record temporary defect information and record temporary defect management information comprise with temporary defect information and temporary defect management information record several times.

17, method as claimed in claim 15, wherein, record temporary defect management information comprises that record is about with the information of the position of the corresponding temporary defect information of temporary defect management information with about the information of the position of the temporary defect information that writes down during the recording operation that has i-1 mark at least at another.

18, method as claimed in claim 10, wherein, record temporary defect information comprises:

During the i recording operation with the predetermined unit record data;

The data of calibration tails are with the defect area that has defective of detection dish;

To and be recorded in the storer of recording unit as i temporary defect information about the information in the replacement zone that is used for this defect area about the information of defect area;

To repeat with the data of predetermined unit record data and calibration tails at least once; With

When recording operation finishes, read the information that is stored in the storer and with this information that reads as i temporary defect information stores in the temporary defect management area territory.

19, a kind of record and/or reproducer comprise:

Record/read the unit is recorded in data on the dish and/or from coiling reading of data; With

Controller, controlling recording/read unit is being recorded in the temporary defect management area territory about the temporary defect information of the detected defective of a part of the data in the data area that is recorded in dish from corresponding recording operation unit, with the temporary defect management information that is used for managing temporary defect information in the temporary defect management area territory is recorded in the temporary defect management area territory, wherein, temporary defect information does not comprise the information about another detected defective during recording operation unit formerly.

20, recording unit as claimed in claim 19, wherein, controller controlling recording/read unit with corresponding temporary defect information and temporary defect management information as a pair of information record adjacent each other.

21, recording unit as claimed in claim 19, wherein, to each recording operation unit's controller controlling recording/read the unit corresponding temporary defect information and temporary defect management information are recorded in the temporary defect management area territory, during dish is finished, read the temporary defect information of all records and temporary defect management information and temporary defect information and the temporary defect management information that reads is recorded in the defect management.

22, a kind of record and/or reproducer comprise:

Record/read unit is recorded in data that dish is gone up and/or from the dish reading of data;

Controller, controlling recording/read unit with will about the Data Detection from the data area that be recorded in dish according to recording operation with i mark to the information of defective be recorded in the temporary defect management area territory as i temporary defect information, wherein, i is an integer; The defect management information that will be used for managing i temporary defect information is recorded in the temporary defect management area territory; Data are recorded in the data area, and the mark i that will be given to corresponding recording operation, corresponding temporary defect information and corresponding temporary defect management information simultaneously adds 1; And during dish is finished, the temporary defect information and the temporary defect management information of all records is recorded in the defect management.

23, recording unit as claimed in claim 22, wherein, controller controlling recording/read the unit data to be recorded in the data area with the last recording operation of basis, and the temporary defect information and the temporary defect management information of all records is recorded in the defect management as final defect information and defect management information respectively.

24, recording unit as claimed in claim 22, wherein, controller controlling recording/read unit with from the initial beginning in temporary defect management area territory sequentially with corresponding temporary defect information and temporary defect management information as a pair of information record.

25, recording unit as claimed in claim 22, wherein, controller controlling recording/read unit begins sequentially corresponding temporary defect information and temporary defect management information as a pair of information record with the ending from the temporary defect management area territory.

26, recording unit as claimed in claim 24, wherein, controller controlling recording/read unit is with will be about with the information of the position of the corresponding temporary defect information of temporary defect management information with about the information record of the position of the temporary defect information that writes down during the recording operation that has i-1 mark at least at another.

27, recording unit as claimed in claim 22 also comprises storage unit,

Wherein, controller controlling recording/read unit with according to booking situation operation with common indicium with the predetermined unit record data; The data of calibration tails are with the defect area that has defective of detection dish; Foundation is about the information of defect area with about the information in the replacement zone that is used for defect area; The information of setting up is recorded in the storage unit as temporary defect information; And controlling recording/read the unit to be recorded in the data in the zone that is right after defect area with predetermined unit according to recording operation, read temporary defect information from storage unit, and the temporary defect information that reads is recorded in the temporary defect management area territory.

28, a kind of Write-once disc with at least one recording layer comprises:

The temporary defect management area territory, have temporary defect information and be used for the temporary defect management information of managing temporary defect information, described temporary defect information is about the defective in the detected data that are recorded in the user data area and do not have information about another defective that produces during recording operation formerly during corresponding recording operation only;

Finish defect management temporarily, have finish defect information temporarily and be used to manage finish defect information temporarily finish defect management information temporarily, describedly finish at least a portion that defect information comprises the temporary defect information that is recorded in the temporary defect management area territory temporarily; And

At least one defect management, the temporary defect information of all records and temporary defect management information are recorded as defect information and defect management information respectively during dish is finished,

Wherein:

Temporary defect information and temporary defect management information are recorded in the temporary defect management area territory as a pair of information, and

Defect information and defect management information and/or temporary defect information and temporary defect management information are used with the data to the record on dish by record and/or reproducer and are carried out defect management.

29, Write-once disc as claimed in claim 28, wherein:

When temporary defect management information is recorded k time, finish defect management information temporarily and be recorded, K is the integer more than or equal to 2.

30, Write-once disc as claimed in claim 29 wherein, obtains to finish defect management information based on all temporary management information of record when finishing defect management information and will be recorded temporarily temporarily.

31, Write-once disc as claimed in claim 30 wherein, is finished defect management information temporarily and is comprised all temporary defect information that is included in temporarily finishing the temporary management information that will write down when the defect management information expectation will be recorded.

32, Write-once disc as claimed in claim 29, wherein, described at least one defect management comprises at least two defect managements.

33, Write-once disc as claimed in claim 28, wherein, temporary defect information and temporary defect management information are adjacent each other to be recorded in the temporary defect management area territory.

34, Write-once disc as claimed in claim 28, wherein, temporary defect information and temporary defect management information are that unit is recorded in the temporary defect management area territory as a pair of information with the piece of predetermined number.

35, Write-once disc as claimed in claim 33, wherein, temporary defect information and temporary defect management information are recorded several times, and described temporary defect management information also comprises the information about corresponding temporary defect recording of information position.

36, Write-once disc as claimed in claim 33, wherein, described temporary defect information comprises the pointer of the position of pointing to defective and points to the pointer of the position in this replacement zone that is used for defective.

37, Write-once disc as claimed in claim 35, wherein, described temporary defect management area territory is divided into a plurality of parts, and the copy of temporary defect management information and temporary defect information is recorded in each of described a plurality of parts.

38, a kind of method of managing disc defect comprises:

Piece with predetermined number is that unit is recorded in temporary management information in the temporary defect management area territory as the i temporary management information, described temporary management information comprises that wherein i is an integer about the temporary defect information and the temporary defect management information of the data in the data area that is recorded in dish according to the recording operation with i mark;

The mark i that record i temporary management information is repeated at least once will to be given to simultaneously recording operation and temporary management information adds 1;

When temporary management information is recorded k time, to finish defect management information is recorded in and finishes in the defect management temporarily temporarily, wherein, k is the integer more than or equal to 2, describedly finishes the temporary management information that defect management information is based on all records temporarily and obtains;

To write down temporary management information and repeat, will write down the i temporary management information and repeat to increase mark i simultaneously at least once, will write down and finish defect management information at least once temporarily; And

Read the temporary defect management information and the temporary defect information of all records, described temporary defect management information comprises and is recorded in the temporary management information of temporarily finishing in the defect management information, and temporary defect management information and temporary defect information are recorded in the defect management.

39, method as claimed in claim 38 wherein, after being recorded in data in the data area according to last recording operation, reading and writes down temporary defect management information and be performed.

40, method as claimed in claim 38, wherein: record temporary defect management information comprises from the initial beginning in temporary defect management area territory sequentially temporary defect information and temporary defect management information as a pair of information record adjacent each other.

41, method as claimed in claim 40, wherein:

Record temporary defect management information comprises and repeatedly writes down temporary defect information and temporary defect management information,

Each temporary defect management information is specified the position of corresponding temporary defect information and is had the position of the temporary defect information that writes down during the recording operation of i-1 mark at least at another.

42, method as claimed in claim 41, wherein:

Dish comprises a plurality of temporary defect management area territory,

Record temporary defect management information comprises the copy of record temporary defect management information and temporary defect information in a plurality of temporary defect management area territory each.

43, method as claimed in claim 38, wherein, record temporary defect management information comprises from the ending in temporary defect management area territory and beginning sequentially temporary defect information and temporary defect management information as a pair of information record adjacent each other.

44, method as claimed in claim 43, wherein, record temporary defect management information comprises and repeatedly writes down temporary defect information and temporary defect management information.

45, method as claimed in claim 44, wherein:

Dish comprises a plurality of temporary defect management area territory,

46, method as claimed in claim 44, wherein:

In the temporary defect management information each specified the position of corresponding temporary defect information and had the position of the temporary defect information that writes down during the recording operation of i-1 mark at least at another.

47, method as claimed in claim 38, wherein, record temporary defect management information comprises:

During having the corresponding recording operation of common indicium, with the predetermined unit record data;

To and be recorded in the storer of recording unit as temporary defect information about the information in the replacement zone that is used for this defect area about the information of defect area;

The data and the canned data of record data, calibration tails are repeated once; And

When recording operation finishes, read temporary defect information from storer, and with the piece of predetermined number be unit with temporary defect information and the temporary defect management information that is used for managing this temporary defect information be recorded in the temporary defect management area territory.

48, a kind of recording unit comprises:

Controller, controlling recording/read unit is that unit is recorded in temporary management information in the temporary defect management area territory with the piece of predetermined number, wherein, described temporary management information comprises about the temporary defect information of the data in the data area that is recorded in dish according to corresponding recording operation and is used to manage the temporary defect management information of this temporary defect information; And when temporary management information after the k recording operation is recorded k time, will be recorded in temporarily and finish in the defect management based on the defect management information of finishing of the temporary defect management information acquisition of all records temporarily.

49, recording unit as claimed in claim 48, wherein, controller controlling recording/read unit with the temporary defect information that will constitute temporary defect information and temporary defect management information as a pair of with information record adjacent each other.

50, recording unit as claimed in claim 48, wherein, the controller controlling recording/unit of reading with record about with the information of the position of the corresponding temporary defect information of temporary defect management information with about the information of the position of the temporary defect information that in the recording operation formerly before corresponding temporary defect recording of information operation just in time, writes down.

51, recording unit as claimed in claim 48, wherein, controller controlling recording during dish is finished/read the unit defect information and defect management information are recorded in the defect management, described defect management information is based on the temporary management information of all records and finishes defect management information temporarily and obtains.

52, recording unit as claimed in claim 48, wherein:

Dish comprises a plurality of temporary defect management area territory,

The copy of controller controlling recording/read record temporary management information in unit each in a plurality of temporary defect management area territory.