CN101059985A - Method of and apparatus for reproducing data from write-once disc - Google Patents
Method of and apparatus for reproducing data from write-once disc Download PDFInfo
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- CN101059985A CN101059985A CNA2007101046074A CN200710104607A CN101059985A CN 101059985 A CN101059985 A CN 101059985A CN A2007101046074 A CNA2007101046074 A CN A2007101046074A CN 200710104607 A CN200710104607 A CN 200710104607A CN 101059985 A CN101059985 A CN 101059985A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
- A01K31/22—Poultry runs ; Poultry houses, including auxiliary features, e.g. feeding, watering, demanuring
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
- A01K31/002—Poultry cages, e.g. transport boxes
- A01K31/007—Floors
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
- A01K31/10—Doors; Trap-doors
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
- G11B27/327—Table of contents
- G11B27/329—Table of contents on a disc [VTOC]
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B2020/10898—Overwriting or replacing recorded data
- G11B2020/10907—Overwriting or replacing recorded data using pseudo-overwriting, i.e. virtually or logically overwriting data on WORM media by remapping recorded blocks to alternate areas
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1291—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting serves a specific purpose
- G11B2020/1294—Increase of the access speed
- G11B2020/1295—Increase of the access speed wherein the focus is on the read access speed
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B2020/1873—Temporary defect structures for write-once discs, e.g. TDDS, TDMA or TDFL
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/218—Write-once discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/23—Disc-shaped record carriers characterised in that the disc has a specific layer structure
- G11B2220/235—Multilayer discs, i.e. multiple recording layers accessed from the same side
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2541—Blu-ray discs; Blue laser DVR discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24035—Recording layers
- G11B7/24038—Multiple laminated recording layers
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Birds (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
本发明提供了一种将数据记录在一次写入盘上和/或从一次写入盘读取数据的方法和设备，所述一次写入盘具有至少一个记录层，所述一次写入盘包括：多个更新区，其中记录预定的更新的信息；和至少一个访问信息区，其中记录访问信息，所述访问信息指示最终记录的更新的信息被记录在其中的更新区。通过使用预定的更新的信息的位置，减少了用于读取更新的信息的访问时间。此外，当存在用于写入使用一次写入盘所需的更新的信息的更新区时，记录设备或再现设备可迅速和容易地确定在多个更新区中最终更新的信息被记录在其中的更新区。
The present invention provides a method and apparatus for recording data on and/or reading data from a write-once disc having at least one recording layer, the write-once disc comprising : a plurality of update areas in which predetermined updated information is recorded; and at least one access information area in which access information indicating an update area in which finally recorded updated information is recorded is recorded. By using a predetermined location of updated information, the access time for reading updated information is reduced. In addition, when there is an update area for writing updated information required to use a write-once disc, the recording device or reproducing device can quickly and easily determine the one in which the updated information is finally recorded among a plurality of update areas. update area.
Description
The application is to be that Dec 21, application number in 2004 are 200480038678.3, are entitled as the dividing an application of patented claim of " at the Write-once disc identifying recording layer and/or from Write-once disc method of reproducing data and equipment and Write-once disc " applying date.
Technical field
The present invention relates to a kind of at the Write-once disc identifying recording layer and/or from Write-once disc method of reproducing data and equipment, more particularly, relate to a kind of on Write-once disc record access information use the method and apparatus of the required information of this Write-once disc with visit more promptly, and more than one state the Write-once disc that method and apparatus uses.
Background technology
New information can be repeatedly recorded in information and be recorded on thereon the rewritable disk.Yet, when new information is recorded on the Write-once disc,, can not be repeatedly recorded in the position that wherein records information, so must distribute new position to upgrade the information that has write down because the information that has been recorded can not be wiped free of.
Usually, have only the information of final updated to be only significant.Therefore, in order to read the information of final updated, update area is assigned to the data field, and the disk drive update area that wherein records updated information by search detects the information of final updated.When many information are recorded in the update area, require a great deal of time and detect the information of expectation.
It being carried out on the Write-once disc of defect management by driver, there is such zone, described regional record is used to manage the information of the defective that produces and the information of indicating the recording status of Write-once disc when Write-once disc is used.Different with rewritable disk, characteristic according to Write-once disc, because when needs upgraded defect management information, updated information can not be repeatedly recorded in the position that existing information has been recorded in it, so updated information must be recorded in the empty position place.Therefore, need big relatively update area.Usually, update area is assigned to Lead-In Area or leading-out zone.Yet update area can be assigned to the data field sometimes, increases more New count with the appointment according to the user.
When the information of using the required final updated of Write-once disc is recorded in the update area of distributing to the data field, and when the information of position that the indication update area is assigned to the information of data field and indication update area is included in the information of final updated, searched even distribute to the update all district of Lead-In Area or leading-out zone, the position that the information of final updated or the information of final updated are recorded in it can not be detected.
Summary of the invention
Technical solution
According to an aspect of the present invention, provide a kind of Write-once disc that records information thereon,, can reduce and read the access time of using the required updated information of described Write-once disc by described data structure with such data structure.
According to a further aspect in the invention, also provide a kind of data record method and equipment,, can reduce and read the access time of using the required updated information of Write-once disc by described data record method and equipment.
According to a further aspect in the invention, provide a kind of data reproducing method and equipment,, can reduce and read the access time of using the required updated information of Write-once disc by described data reproducing method and equipment.
Beneficial effect
According to the present invention, when using predetermined information thereon to be updated and to be recorded in Write-once disc in the reposition, can reduce the access time of reading updated information.In addition, a plurality of when being used to write the update area of using the required updated information of described Write-once disc when existing, recording unit or reproducer can be in described a plurality of update area rapidly and easily determine the update area that the information of final updated is recorded in it.
Description of drawings
By the description of embodiment being carried out below in conjunction with accompanying drawing, these and/or other aspect of the present invention and advantage will become apparent and be easier to understand, wherein:
Figure 1A and Figure 1B are the structures according to the Write-once disc of the embodiment of the invention;
Fig. 2 is the detailed structure according to the Write-once disc with single-recordng-layer of the embodiment of the invention;
Fig. 3 A and Fig. 3 B are the detailed structure according to the Write-once disc with double record layer of the embodiment of the invention;
Fig. 4 A and Fig. 4 B are the detailed structure that has the Write-once disc of double record layer according to another embodiment of the present invention;
Fig. 5 shows and data is recorded in processing in user data area and the spare area according to the embodiment of the invention;
Fig. 6 is the data structure according to the visit information of first embodiment of the invention;
Fig. 7 is the data structure according to the visit information of second embodiment of the invention;
Fig. 8 is the data structure according to the visit information of third embodiment of the invention;
Fig. 9 is the data structure according to the visit information of fourth embodiment of the invention;
Figure 10 is by whole TDMA being divided into the data structure that a plurality of virtual TDMA obtain;
Figure 11 is the block scheme according to the recording unit of the embodiment of the invention; With
Figure 12 is the process flow diagram that illustrates according to the recording method of the embodiment of the invention.
Best mode
According to an aspect of the present invention, provide a kind of Write-once disc with at least one recording layer, Described dish comprises: a plurality of update area, the wherein information of recording scheduled renewal; With at least one access letter Breath district, record access information wherein, the final information of upgrading of described visit information indication is recorded in it Update area.
According to a further aspect in the invention, provide a kind of data be recorded in method on the Write-once disc, Described method comprises: the information recording/of the renewal that will be scheduled to is being distributed to a plurality of update area of Write-once disc In a update area in; Access with the update area that will indicate the final information of upgrading to be recorded in it Information recording/is in distributing at least one visit information district of Write-once disc.
According to a further aspect in the invention, provide a kind of for data are recorded on the Write-once disc Equipment, described equipment comprises: write/read unit records the information on the Write-once disc or from once writing Enter to coil reading information; And controller, the information recording/ of controlling the renewal that described write/read unit will be scheduled to is dividing In the update area in a plurality of update area of dispensing Write-once disc, and control described write/read unit and incite somebody to action Visit information is recorded at least one the visit information district that distributes to Write-once disc.
According to a further aspect in the invention, provide a kind of method of reproducing Write-once disc, described method Comprise: obtain the final visit information that upgrades from least one the visit information district that distributes to Write-once disc; Obtain to indicate during distributing to a plurality of update area of Write-once disc final with the visit information from final renewal The information of the update area that the visit information that upgrades is recorded in it.
According to a further aspect in the invention, provide a kind of equipment that reproduces Write-once disc, described equipment Comprise: reader, read the data that are recorded on the Write-once disc; And controller, control described reading Device obtains the final visit information that upgrades from least one the visit information district that distributes to Write-once disc, and And control described reader and distributing to the many of Write-once disc from the visit information acquisition indication of final renewal The information of the update area that the final visit information that upgrades is recorded in it in the individual update area.
To be partly articulated in the following description the other aspect of the present invention and/or advantage, partly, logical Cross description and will become apparent, perhaps can understand by implementing the present invention.
Mode of the present invention
To be described in detail the embodiment of the invention now, its example shown in the accompanying drawings, wherein, identical label is represented same parts all the time.Below with reference to the accompanying drawings embodiment is described to explain the present invention.
Figure 1A and Figure 1B are the structures according to the Write-once disc of the embodiment of the invention.Figure 1A is the structure with Write-once disc of single-recordng-layer.Figure 1B is the structure with Write-once disc of double record layer.
Write-once disc with single-recordng-layer comprises Lead-In Area, data field and the leading-out zone of arranging from interior circumferential periphery.
Have the first recording layer L0 of Write-once disc of double record layer and each of the second recording layer L1 and comprise Lead-In Area, data field and the leading-out zone of arranging from interior circumferential periphery.
Fig. 2 is the detailed structure according to the Write-once disc with single-recordng-layer of the embodiment of the invention.With reference to Fig. 2, Lead-In Area comprises first disc management area (DMA1), second disc management area (DMA2), the first temporary disk (T-disk) directorial area (TDMA1), visit information district (AIA) and record condition test section.Leading-out zone comprises the 3rd disc management area (DMA3) and the 4th disc management area (DMA4).In addition, leading-out zone also can comprise at least one among temporary disk (T-disk) directorial area, record condition test section and the AIA.That is, at least one of Lead-In Area and/or leading-out zone, there be in AIA, DMA, TDMA and the record condition test section at least one.
Fig. 3 A and Fig. 3 B are the detailed structure according to the Write-once disc with double record layer of the embodiment of the invention.Fig. 3 A is the structure of the first recording layer L0, and Fig. 3 B is the structure of the second recording layer L1.The structure of the Write-once disc with single-recordng-layer that shows among the structure of the first recording layer L0 that shows among Fig. 3 A and Fig. 2 is identical.The structure of the second recording layer L1 that shows among Fig. 3 B and the structural similarity of the first recording layer L0.Yet in the structure of the second recording layer L1, AIA is not assigned to second inner area, and two TDMA are assigned to second data field.
Write-once disc with double record layer comprises five TDMA, and TDMA1 is to TDMA5.The position of TDMA1 and TDMA2 and size are known for recording unit and/or reproducer.Yet so that when having the Write-once disc of double record layer, TDMA3, TDMA4 and TDMA5 distribute to the data field by user or recording unit and/or reproducer when the initialization of execution dish.When from TDMA1 record temporary disk (T-disk) management structure (TDMS), will comprise that the size of the TDMA that distributes to the data field and the temporary disk (T-disk) defect sturcture (TDDS) of position are recorded among the TDMA1.
Fig. 4 A and Fig. 4 B are the detailed structure that has the Write-once disc of double record layer according to another embodiment of the present invention.Fig. 4 A is the structure of the first recording layer L0, and Fig. 4 B is the structure of the second recording layer L1.TDMA1, TDMA2 and TDMA5 are assigned to the Write-once disc with double record layer that shows among Fig. 4 A and Fig. 4 B.That is, except known TDMA1 and TDMA2, so that when having the Write-once disc of double record layer, only there is TDMA5 to distribute to second data field by user or recording unit and/or reproducer when the initialization of execution dish.
To describe now such as the district of the TDMA that distributes to Write-once disc with data and be recorded in processing in the described district.
TDMA was used to manage the district that the TDMS of Write-once disc is recorded in it before Write-once disc final determined.The operation that finally the determining of Write-once disc prevents that Write-once disc from being write down once more.When the selection by the user made that data can not be recorded on the Write-once disc again, perhaps when data can not additionally record on the Write-once disc, Write-once disc was finally determined.
TDMS comprises temporary defect list (TDFL), TDDS and space bit map (SBM).TDFL comprises that indication produces the information in district of defective and the information that the district is replaced in indication therein.TDDS manages TDFL, and comprises the position indicator pointer of the position indicator pointer of the position that is recorded in it of indication TDFL, position that indication SBM is recorded in it, position and the position of the information of size and the TDMA that the data field is distributed in indication and the information of size of spare area that the data field is distributed in indication.SBM by different bit values is distributed to data with bunch be unit be recorded in it bunch and data be not recorded in it bunch uses the position to shine upon the data-recording status that shows Write-once disc, wherein, described bunch is data record unit.
When Write-once disc was loaded into recording unit and/or reproducer, the TDMS of final updated, particularly TDDS were promptly needed so that be used in Write-once disc in the described equipment.
Usually, when Write-once disc was loaded into recording unit and/or reproducer, described recording unit and/or reproducer were by reading information and determine how to manage Write-once disc and how to write down or reproducing data from Lead-In Area and/or leading-out zone.If the quantity of information that is recorded in Lead-In Area and/or the leading-out zone is very big, then after Write-once disc is written into, to spends more time and prepare record or reproduction.Therefore, TDMS is used, and is recorded in the TDMA at the TDMS that data is recorded on the Write-once disc or produce when Write-once disc reproduces data, and described TDMA and defect management distinguish and be assigned to Lead-In Area and/or leading-out zone.
When Write-once disc is finally determined, because make that by allowing record or reproducer only to read significant information the message reference of use Write-once disc becomes possibility rapidly from defect management, so by only will be in DMA by significant information stores final among TDFL that repeatedly upgrades and write down and the TDDS, with TDMS, the TDFL and the TDDS that promptly are recorded among the TDMA are lastly recorded among the DMA.
Fig. 5 shows and data is recorded in processing in user data area and the spare area according to the embodiment of the invention.
With reference to Fig. 5, A represents user data area, and B represents the spare area.The method that records the user data in the user data area comprises continuous recording pattern and recorded at random pattern.Under the continuous recording pattern, user data is by record continuously and sequentially, and under the recorded at random pattern, user data is by record randomly.The unit that the checking of record back is performed is therein represented in the zone 7. 1. to the zone.
Recording unit with user data write the zone 1. and checking be normally to write data or generation defective in the zone in 1..If find to have produced the part of defective, then this part is designated as defect area, i.e. defective #1.In addition, the recording unit data that will write among the defective # 1 write the spare area again.Having write data among the defective # 1 is written to wherein part again and is called and replaces #1.Recording unit with user data write the zone 2. and checking be normally to write data or generation defective in the zone in 2..If find to have produced the part of defective, then this part is designated as defect area, i.e. defective #2.In the same manner, produce the replacement # 2 corresponding with defective #2.In addition, the zone 3. in, produce defective #3.The zone 4. in because do not have to find to have produced the part of defective, so there is not defect area.
If after user data is written into and verifies, predict the end of recording operation # 1, promptly, if the user presses ejector button, if perhaps finished the record of the user data of distributing to recording operation, then recording unit writes TDMA with the information relevant with defective # 3 with defective # 1, defective # 2 as TDFL# 1, described defective # 1, defective # 2 and defective # 3 be the zone 1. to the zone 4. in the generation defect area.In addition, the management structure of management TDFL# 1 is written into TDMA as TDDS#1.Recording operation is by the determined working cell of the writing task of user's intention or expectation.In the present embodiment, recording operation indication when being written into Write-once disc and carry out the writing task of predetermined information to the time period when recording unit withdraws from described Write-once disc.
When being written into Write-once disc once more, recording operation # 2 begins, the record condition in test record condition test district, and on the basis of test result, write user data.That is, in recording operation # 2,5. to the zone 7. user data is write the zone, and produce defective # 4, defective # 5, replace #4 and replace #5 in the mode identical with recording operation #1.When recording operation # 2 finished, recording unit write TDMA with the information relevant with defective # 5 with defective # 4 as TDFL#2.In addition, the management structure of management TDFL# 2 is written into TDMA as TDDS# 2.
To shown in Figure 4, when a plurality of TDMA and spare area were assigned to Write-once disc, TDMA and spare area were used with predesigned order as Fig. 2.For example, the data write paths of the Write-once disc with double record layer that shows in being applied to Fig. 3 is contrary orbital path, when promptly first outside area from first inner area of the first recording layer L0 to the first recording layer L0 and second outside area from second inner area of the second recording layer L1 to the second recording layer L1 came the path of record data, the data in the spare area were recorded from first spare area of the first recording layer L0.When first spare area when full, use second spare area, the 3rd spare area and the 4th spare area in order.
In the same manner, the TDMA1 from the first recording layer L0 writes down TDMS.When TDMA1 when full, the TDMS of renewal is recorded among the TDMA2 of second inner area of distributing to the second recording layer L1.When TDMA2 when full, the new TDMS that upgrades is recorded among the TDMA3 of first data field of distributing to the first recording layer L0.In the present embodiment, TDMA1 and the TDMA2 that distributes to the inner area of recording layer is preferably used for Write-once disc.Yet, can distribute or be regardless of the TDMA of partition dispensing data field by user's selection.Therefore, when the TDMA of the inner area of distributing to recording layer when full, use the TDMA that distributes to the data field.
When the TDMS of final updated was written into the TDMA that distributes to the data field, Write-once disc was withdrawed from, and this Write-once disc is written into recording unit again.Recording unit must obtain the TDMS of final updated to use this Write-once disc.Yet TDMS is recorded among the TDMA that distributes to the data field, and is included in TDDS among the TDMS up to disc drive accesses, and disk drive could be discerned TDMS and be recorded in the fact among the TDMA that distributes to the data field.
In order to address this problem, in the present invention, AIA is distributed to the precalculated position of Write-once disc separately.Visit information (AI) is recorded among the AIA.The position that the lastest imformation of AI indication such as TDMS is recorded.
In addition, lastest imformation indication when Write-once disc is loaded into record and/or reproducer during initialization record and/or reproducer must discern information with the use Write-once disc.In addition, the district that is recorded in it of lastest imformation is called update area.In the present embodiment, typical lastest imformation is TDMS, and typical update area is TDMA.
To shown in Figure 4, AIA preferably but be not the precalculated position that must be assigned to Lead-In Area or inner area as Fig. 2.In addition, the size of AIA preferably but be not must by minimize the amount that is recorded in the AI among the AIA and AI more New count limit, this is because if the size of AIA is big or be assigned a plurality of AIA, then obtaining AI will take a long time.
Fig. 6 is the data structure of the visit information (AI) according to first embodiment of the invention.The AI that shows among Fig. 6 shows in the Write-once disc with double record layer that shows TDMS as lastest imformation in Fig. 3, as the TDMA and the AI of update area.
With reference to Fig. 6, the AI head comprises more New count of AI identifier and AI, and described AI identifier indication data subsequently are AI, and described AI is the more New count of New count demonstration AI more.
AI comprises the information of the position of the information of sum, the TDMA that is recorded in it of the final TDDS of indication of the TDMA that distributes to Write-once disc and indication TDMA.Each TDMA positional information can comprise the information of the starting position of indicating each TDMA and end position or comprise the starting position of indicating each TDMA or the information of end position and size.Because TDDS comprises the pointer of the position of indicating corresponding TDFL, so AI comprises the information of the TDMA that the final TDDS of indication is recorded in it.
When Write-once disc according to the present invention was loaded into disk drive, disk drive can be discerned the TDMA that final TDDS is recorded in it by the AI in known position visit AIA and acquisition final updated, and can obtain final TDDS from TDMA.In order to minimize the access time that obtains to be recorded in the final AI among the AIA, preferably but not necessarily, under the continuous recording pattern, to be recorded in AI among the AIA continuously and to minimize more New count of AI.
According to the embodiment of the invention, in order to minimize more New count of AI, when the TDMA that is recorded in it whenever final TDDS is changed, just upgrade AI.In addition, when the information of position of distributing to the information of quantity of TDMA of Write-once disc and indication TDMA when indication is included among the AI, when new TDMA is assigned with or the information in the position of indication TDMA also upgrade AI when being changed.In addition, preferably but not necessarily, identical AI by record repeatedly think in the AI of record, produce when wrong ready.
Because the AI that is updated is recorded in after the previous AI continuously, even so indicate the information of the better address that final TDDS is recorded not to be included among the AI, owing to have difference between RF signal that obtains from the district of record data and the RF signal that never district of record data obtains, recording unit and/or reproducer also can be by using track jump method identification record data district and the border between the district of record data not, promptly search for the position that final TDDS is recorded in it.
Fig. 7 is the data structure according to the AI of second embodiment of the invention.The AI that shows among Fig. 6 comprises the information of the position of indicating all TDMA and the information of the TDMA that the final TDDS of indication is recorded in it.Yet the AI that shows among Fig. 7 comprises the information of the position of the TDMA that the final TDDS of indication is recorded in it.The information of the position of the TDMA that the final TDDS of described indication is recorded in it can be expressed as the address of last bunch first physical sector of the address of first bunch first physical sector of TDMA and TDMA.Yet, it will be understood by those skilled in the art that under the situation that does not break away from the spirit and scope of the present invention, can carry out various modifications to the method for expressing of the information of the position of indicating the TDMA that final TDDS is recorded in it.
Fig. 8 is the data structure according to the AI of third embodiment of the invention.The data structure of the AI that shows among Fig. 8 is identical with the data structure of TDDS.That is, under the situation of the data structure of unqualified independent AI, TDDS is used as AI.For TDDS is used as AI, the information field of the position of the TDMA that the final TDDS of indication must be recorded in it adds TDDS to.
Fig. 9 is the data structure according to the AI of fourth embodiment of the invention.The data structure of the AI that shows among Fig. 9 with as the data structure of the described TDDS of the 3rd embodiment identical.Yet different with the 3rd embodiment, the sign of the position of the TDMA that the final TDDS of indication is recorded in it is included among the TDDS in addition.In the present embodiment, described sign is formed by 8, and wherein, the TDMA that b0 is recorded in it to the final TDDS of this 5 bit representation of b4, b5 are to keep the position to these 3 of b7.For example, can be as giving a definition: when b0 to b4 during for " 00001b ", final TDDS is recorded among the TDMA1, and when b0 was " 00010b " to b4, final TDDS was recorded among the TDMA2, when b0 is " 00100b " to b4, final TDDS is recorded among the TDMA3, and when b0 was " 01000b " to b4, final TDDS was recorded among the TDMA4, when b0 was " 10000b " to b4, final TDDS was recorded among the TDMA5.
The a plurality of TDMA that distribute to according to the Write-once disc of present embodiment are used continuously based on the data recording direction.Therefore, quantity physically is thought of as a continuous TDMA more than one TDMA, a described continuous TDMA is divided into a plurality of virtual TDMA.
Figure 10 is by whole TDMA being divided into the data structure that a plurality of virtual TDMA obtain.For example, in having the Write-once disc of double record layer, when TDMA uses with the order of TDMA1, TDMA2, TDMA3, TDMA4 and TDMA5, if and each of TDMA1 and TDMA2 comprises 2048 bunches, each of TDMA3 and TDMA4 comprises 4096 bunches, TDMA5 comprises 8192 bunches, and then whole TDMA comprises 20480 bunches.If whole TDMA is divided into 512 bunches of unit, 1024 bunches of unit or 2048 bunches of unit, then whole TDMA is divided into 40 virtual TDMA, 20 virtual TDMA or 10 virtual TDMA.
If the size of the TDMA3 of the TDMA1 that distributes to Write-once disc in the TDMA5 is very big, if and final TDDS is recorded among the TDMA3, then record and/or reproducer identify final TDDS from AI and are recorded in the fact the TDMA3, and obtain final TDDS by search TDMA3.Yet when the size of TDMA3 was very big, search TDMA3 may spend the long time to obtain final TDDS.Therefore, in order to address this problem, use the notion of virtual TDMA described above.As shown in figure 10, the size of each virtual TDMA can be identical.Yet the size of each virtual TDMA is not limited to present embodiment.
Record and/or reproducer are divided into a plurality of virtual TDMA with whole TDMA, and the virtual TDMA that is recorded in it as final TDDS renewal AI when changing.Can be according to each of the data structure of first to the 4th embodiment as data structure according to the AI of present embodiment.Yet the AI of present embodiment comprises the information of the virtual TDMA that the final TDDS of indication is recorded in it or comprises the information of the position of the virtual TDMA that the final TDDS of indication is recorded in it.
Figure 11 is the block scheme according to the recording unit of the embodiment of the invention.
With reference to Figure 11, described recording unit comprises write/read unit 1, controller 2 and storer 3.Write/read unit 1 writes on data on the Write-once disc 100 and whether the data of reading and recording exist defective with checking in the data of record.AIA according to the present invention is assigned to Write-once disc 100.
For managing defect, controller 2 uses and writes the back verification method, and this method detects the part that wherein produces defective by the data that write data and checking record by scheduled unit.Controller 2 checks by write and verify user data by each recording operation unit where defective is created in, produce the indication defect area and be present in defect list where as check result, the defect list that produces is stored in the storer 3, collect a plurality of defect lists, described a plurality of defect lists are stored in the update area of distributing to Write-once disc 100 as TDFL, be among the TDMA, and the TDDS that will be used for the TDFL of management accounts write TDMA.In a recording operation, write back checking work and carried out once at least, and be performed usually for several times.The defect list that writes back checking acquisition by execution is temporarily stored in the storer 3 as TDFL.When recording operation was finished, controller 2 read the TDFL that is stored in the storer 3, and this TDFL is offered write/read unit 1, and order write/read unit 1 writes this TDFL among the TDMA that distributes to Write-once disc 100.
When data can not be recorded on the Write-once disc 100 again, perhaps when the user does not wish to write data in the data field again (when Write-once disc 100 is finally determined), TDFL and TDDS that controller 2 will be recorded among the TDMA write among the DMA that distributes to Write-once disc 100.
To serve as the method that record AI is according to an aspect of the present invention described on the basis in detail now with the structure of above-mentioned recording unit.
Figure 12 is the process flow diagram that illustrates according to the recording method of the embodiment of the invention.
When Write-once disc 100 was loaded into recording unit, in operation 71, controller 2 control write/read unit 1 write Write-once disc 100 with the predetermined user data.
Operating in 73, the result of checking work determines whether to produce the information with being updated after writing according to execution, is carried out once at least during checking is operated in a recording operation after the said write.In the present embodiment, the information that is updated is referred to TDMS.When producing TDMS, TDMS is temporarily stored in the storer 3, and when recording operation is finished, controller 2 reads the TDFL that is stored in the storer 3 and this TDFL is offered write/read unit 1, and in operation 75, write/read unit 1 writes this TDFL in the update area in a plurality of update area of distributing to Write-once disc 100.In the present embodiment, update area refers to TDMA.
In operation 77, controller 2 determines whether to exist another recording operation, if there is another recording operation, then repetitive operation 71 is to operation 77.
If there is no another recording operation is then being operated in 79, and controller 2 determines whether to need to upgrade AI.In the present embodiment, as final TDMS, when the TDMA that particularly final TDDS is recorded in it was changed, when new TDMA was assigned with, perhaps when the information of the position of indicating existing TDMA was changed, AI was updated.
In operation 81, controller 2 control write/read unit 1 will indicate the AI of the update area that the information of final updated in a plurality of update area is recorded in it to write among at least one AIA that distributes to Write-once disc 100.Preferably but not necessarily, in the AI of record, produce under the wrong situation, repeatedly write down identical AI.
As mentioned above, if indicate the AI of the position that final TDMS is recorded in it to be recorded among the AIA of Write-once disc, then when Write-once disc 100 was loaded into recording unit or reproducer once more, described recording unit or reproducer can rapider and easily be visited final TDDS.
The equipment (not shown) that is used for reproducing the Write-once disc 100 of the AIA that comprises that AI according to the present invention is recorded in it has the similar structure of recording unit that shows to Figure 11.Yet, because described equipment is reproducer, so comprise reader rather than write/read unit 1.When the Write-once disc 100 that comprises the AIA that AI is recorded in it was loaded into reproducer, whether reproducer is recorded in by visit DMA and specified data was determined among the DMA whether Write-once disc 100 is finally determined.If Write-once disc 100 is not determined finally that then reproducer is visited AIA and obtained final AI.The TDMA that recording unit or reproducer are recorded in it from final AI identification TDDS.By to the Write-once disc 100 that comprises AIA and the description of recording unit thereof, those skilled in the art can easily understand the operation according to recording unit of the present invention.
If Write-once disc 100 is the blank panels that are not initialised, then data are not recorded among the AIA at all.Recording unit is carried out initialization to use Write-once disc 100.When Write-once disc 100 is initialised, has a AI according to the data structure of above-mentioned a plurality of embodiment and be recorded in first record bunch of AIA.
Though represented and described some embodiments of the present invention, it should be appreciated by those skilled in the art that under the situation that does not break away from the principle of the present invention that limits its scope by claim and equivalent thereof and spirit, can make amendment to these embodiment.
Claims (13)
Applications Claiming Priority (3)
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| KR1020030096223 | 2003-12-24 | ||
| KR20030096223 | 2003-12-24 | ||
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Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004800386783A Division CN1898739B (en) | 2003-12-24 | 2004-12-21 | Method and device for recording data on a write-once disc |
Publications (2)
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|---|---|
| CN101059985A true CN101059985A (en) | 2007-10-24 |
| CN100587830C CN100587830C (en) | 2010-02-03 |
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| CN2004800386783A Expired - Lifetime CN1898739B (en) | 2003-12-24 | 2004-12-21 | Method and device for recording data on a write-once disc |
| CN2007101046110A Expired - Lifetime CN101071608B (en) | 2003-12-24 | 2004-12-21 | Method for distributing multiple partition on write-once disc |
| CN200710104607A Expired - Lifetime CN100587830C (en) | 2003-12-24 | 2004-12-21 | Method and apparatus for reproducing data from a write-once disc |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2004800386783A Expired - Lifetime CN1898739B (en) | 2003-12-24 | 2004-12-21 | Method and device for recording data on a write-once disc |
| CN2007101046110A Expired - Lifetime CN101071608B (en) | 2003-12-24 | 2004-12-21 | Method for distributing multiple partition on write-once disc |
Country Status (8)
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| KR (1) | KR100694046B1 (en) |
| CN (3) | CN1898739B (en) |
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| MY (2) | MY147127A (en) |
| RU (2) | RU2390057C2 (en) |
| SG (1) | SG149060A1 (en) |
| TW (1) | TWI307497B (en) |
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| JP4882861B2 (en) * | 2007-05-11 | 2012-02-22 | ソニー株式会社 | Playback device and management information acquisition method |
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| JPS6446280A (en) * | 1987-08-12 | 1989-02-20 | Dainippon Printing Co Ltd | Methods for data recording and reproducing for optical card |
| JPS6473559A (en) * | 1987-09-14 | 1989-03-17 | Pioneer Electronic Corp | Controller for automatic changer for writable disk |
| JPH0620442A (en) * | 1992-07-02 | 1994-01-28 | Toshiba Corp | Fault recovery method for magneto-optical disk |
| JP2597451B2 (en) * | 1993-02-19 | 1997-04-09 | キヤノン株式会社 | Information recording and playback method |
| EP0628952B1 (en) * | 1993-06-08 | 2002-02-20 | Matsushita Electric Industrial Co., Ltd. | Optical disk, and information recording/reproduction apparatus |
| RU2212062C2 (en) * | 1998-06-15 | 2003-09-10 | Самсунг Электроникс Ко., Лтд | Record medium and record protection method |
| DE69927851T2 (en) * | 1998-10-22 | 2006-07-27 | Matsushita Electric Industrial Co., Ltd., Kadoma | An information recording medium and method and apparatus for error management thereon |
| KR100451718B1 (en) * | 1999-01-13 | 2004-10-08 | 엘지전자 주식회사 | Optical recording medium and method for managing defect area and method for controlling record/playback of it |
| MY118342A (en) * | 1999-02-01 | 2004-10-30 | Matsushita Electric Ind Co Ltd | Information recording medium, information recording method and information recording/reproducing system |
| RU2208844C2 (en) * | 1999-02-10 | 2003-07-20 | Самсунг Электроникс Ко., Лтд. | Record medium incorporating backup domain for controlling faults and fault control data; backup domain allocation process ,and fault control process |
| JP2002008320A (en) * | 2000-06-22 | 2002-01-11 | Kenwood Corp | Recording and reproducing device, magneto-optical disk recording and reproducing device, recording and reproducing method and magneto-optical disk recording and reproducing method |
| JP2003317387A (en) * | 2002-04-16 | 2003-11-07 | Matsushita Electric Ind Co Ltd | Information recording apparatus and information recording method on recording medium |
| JP2003333522A (en) * | 2002-05-17 | 2003-11-21 | Victor Co Of Japan Ltd | Data reproducing apparatus and data reproducing method |
| TWI314315B (en) * | 2003-01-27 | 2009-09-01 | Lg Electronics Inc | Optical disc of write once type, method, and apparatus for managing defect information on the optical disc |
| EP1652175B1 (en) * | 2003-08-05 | 2009-10-28 | Lg Electronics Inc. | Write-once optical disc, and method and apparatus for recording/playback management information on/from optical disc |
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2004
- 2004-01-31 KR KR1020040006471A patent/KR100694046B1/en not_active Expired - Lifetime
- 2004-12-21 CN CN2004800386783A patent/CN1898739B/en not_active Expired - Lifetime
- 2004-12-21 CA CA2767483A patent/CA2767483C/en not_active Expired - Lifetime
- 2004-12-21 JP JP2006546818A patent/JP4842837B2/en not_active Expired - Lifetime
- 2004-12-21 CN CN2007101046110A patent/CN101071608B/en not_active Expired - Lifetime
- 2004-12-21 SG SG200809524-2A patent/SG149060A1/en unknown
- 2004-12-21 CN CN200710104607A patent/CN100587830C/en not_active Expired - Lifetime
- 2004-12-22 TW TW093139969A patent/TWI307497B/en not_active IP Right Cessation
- 2004-12-22 MY MYPI20045312A patent/MY147127A/en unknown
- 2004-12-22 MY MYPI2012001439A patent/MY156152A/en unknown
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2008
- 2008-02-18 RU RU2008106216/28A patent/RU2390057C2/en active
- 2008-05-14 RU RU2008119130/28A patent/RU2467408C2/en active
Also Published As
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| CN101071608A (en) | 2007-11-14 |
| CN100587830C (en) | 2010-02-03 |
| SG149060A1 (en) | 2009-01-29 |
| RU2008119130A (en) | 2009-11-20 |
| JP4842837B2 (en) | 2011-12-21 |
| RU2008106216A (en) | 2009-08-27 |
| CN1898739A (en) | 2007-01-17 |
| KR100694046B1 (en) | 2007-03-12 |
| MY147127A (en) | 2012-10-31 |
| TW200522017A (en) | 2005-07-01 |
| MY156152A (en) | 2016-01-15 |
| HK1103155A1 (en) | 2007-12-14 |
| JP2007517352A (en) | 2007-06-28 |
| CA2767483C (en) | 2015-06-23 |
| CN1898739B (en) | 2010-05-12 |
| RU2467408C2 (en) | 2012-11-20 |
| HK1113435A1 (en) | 2008-10-03 |
| CA2767483A1 (en) | 2005-07-07 |
| RU2390057C2 (en) | 2010-05-20 |
| CN101071608B (en) | 2011-04-13 |
| KR20050065243A (en) | 2005-06-29 |
| TWI307497B (en) | 2009-03-11 |
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