CN101202089A - Device for recording data about once writing recording medium - Google Patents
Device for recording data about once writing recording medium Download PDFInfo
- Publication number
- CN101202089A CN101202089A CNA200710167066XA CN200710167066A CN101202089A CN 101202089 A CN101202089 A CN 101202089A CN A200710167066X A CNA200710167066X A CN A200710167066XA CN 200710167066 A CN200710167066 A CN 200710167066A CN 101202089 A CN101202089 A CN 101202089A
- Authority
- CN
- China
- Prior art keywords
- tdfl
- recorded
- data
- recording medium
- cluster
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007547 defect Effects 0.000 claims abstract description 116
- 230000002950 deficient Effects 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 abstract description 33
- 230000001413 cellular effect Effects 0.000 description 10
- 238000007689 inspection Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- IUQJDHJVPLLKFL-UHFFFAOYSA-N 2-(2,4-dichlorophenoxy)acetate;dimethylazanium Chemical compound CNC.OC(=O)COC1=CC=C(Cl)C=C1Cl IUQJDHJVPLLKFL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/17—Stirrers with additional elements mounted on the stirrer, for purposes other than mixing
- B01F27/172—Stirrers with additional elements mounted on the stirrer, for purposes other than mixing for cutting, e.g. with knives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/02—Stirrer or mobile mixing elements
- C12M27/06—Stirrer or mobile mixing elements with horizontal or inclined stirrer shaft or axis
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/06—Nozzles; Sprayers; Spargers; Diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/18—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Health & Medical Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- General Engineering & Computer Science (AREA)
- Genetics & Genomics (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Sustainable Development (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
A method of recording a temporary defect list on a write-once recording medium, a method of reproducing the temporary defect list, an apparatus for recording and/or reproducing the temporary defect list, and the write-once recording medium. The method of recording a temporary defect list for defect management on a write-once recording medium includes recording the temporary defect list, which is created while data is recorded on the write-once recording medium, in at least one cluster of the write-once recording medium, and verifying if a defect is generated in the at least one cluster. Then, the method includes re-recording data originally recorded in a defective cluster in another cluster, and recording pointer information, which indicates a location of the at least one cluster where the temporary defect list is recorded, on the write-once recording medium.
Description
The application be that April 29, application number in 2004 are 200480001415.5 the applying date, denomination of invention divides an application for the application for a patent for invention of " record and/or reproduce method and the record and/or the reproducer of temporary defect list ".
Technical field
The present invention relates to a kind of once writing recording medium, more particularly, relate to and a kind of temporary defect list is recorded in the method on the once writing recording medium, a kind of method of temporary defect list, a kind of equipment and once writing recording medium that is used to write down and/or reproduce temporary defect list of reproducing.
Background technology
Defect management relates to when the locational data of the generation defective that is recorded in recording medium can not be by normal reproduction these data is recorded on the another location of this recording medium, thereby prevents the data degradation that caused by generation of defects.
Traditionally, defect management is divided into defect management that uses linear replacement method and the defect management that uses slippage replacement method.Linear replacement method is to replace the data field that produces defective with the spare area of the data field that does not produce defective.Slippage replacement method is not used the data field that produces defective, and slippage to and use next data field of not producing defective.
Linear replacement and slippage replacement method mainly have been applied to the dish as DVD-RAM/RW (digital multi-purpose disk-random access memory/can rewrite), and data can be write down again and allow and come record by random access thereon.
Recently, several solutions have been considered and have carried out defect management with usage data record in once writing recording medium and/or reproducer, in case data are written into then these data can not be eliminated or wipe in this recording medium.
To the defect management that use the linear once writing recording medium of replacing be described in detail now.Bunch being the unit record user data, bunch is data recording unit from the data recording of main frame receiving subscriber data record order and user data and/or reproducer.Data recording and/or reproducer carry out write back check (verify-after-write) operation after, if defective the user data area of user data bunch in produce, then data recording and/or reproducer record the user data in the spare area that is included in the data field.
During the predetermined time interval that just is being recorded when data, perhaps after single data recording is finished, data recording and/or reproducer create comprise the user data area that produces defective bunch positional information be recorded in user data in the defect cluster and be rewritten the temporary defect list (hereinafter referred to as TDFL) of positional information of the replacement cluster of spare area thereon.Then, data recording and/or reproducer are recorded in the TDFL that creates in the temporary disk (T-disk) directorial area (hereinafter referred to as TDMA).In addition, after data recording and/or reproducer are recorded in the TDFL that creates among the TDMA, the pointer information of the position of its record indication record TDFL.
When once writing recording medium was reloaded record and/or reproducer, data recording and/or reproducer were read TDFL from once writing recording medium, and the TDFL that reads is stored in the storer.When other data were recorded in the once writing recording medium, if produce new defect cluster, then data recording and/or the reproducer data rewrite that will be recorded in the defect cluster was gone in the replacement cluster of spare area.Thereafter, the TDFL in being stored in storer, data recording and/or reproducer are created the positional information of the defect cluster that comprises new generation and corresponding to the TDFL of the renewal of the positional information of the replacement cluster of the defect cluster of new generation, the TDMA that record upgrades, and the pointer information of the position of the TDFL that upgrades is write down in the record indication.
When for reproducing user data, when once writing recording medium was loaded into data recording and/or reproducer, data recording and/or reproducer were at first visited TDMA, obtained the pointer information of the position of the TDFL that the indication record upgrades, and obtained the TDFL that upgrades.Data recording and/or reproducer can be subsequently by with reference to the TDFL that upgrades reproducing user data error-free.
As mentioned above, because TDFL is used for the key message that user data reproduces, so TDFL should be by high reliability ground record.Therefore, during record TDFL, write the back checked operation with the record of user data during identical mode be performed.Therefore, if defect cluster is produced, the data that then are recorded in the defect cluster are rewritten in another bunch of TDMA.
According to prior art, if the size of TDFL is recorded in two bunches corresponding at least two bunches and TDFL at least, then writes the back checked operation and be performed, and if defect cluster produced, then TDFL is rewritten in other bunches.Yet TDMA is less than the data field, and the data volume that can be stored among the TDMA is little.Therefore, when according to prior art TDFL being carried out defect management, TDMA is used up fast.
Summary of the invention
Technical solution
One aspect of the present invention is to provide a kind of and is used for high reliability and serves as the method and apparatus that the improvement utilization of record TDFL assigned region is recorded in TDFL once writing recording medium.
One aspect of the present invention is to provide a kind of and is used to reproduce with high reliability and serves as the method and apparatus that the improvement utilization of record TDFL assigned region is recorded in the TDFL on the once writing recording medium.
It is a kind of with high reliability with serve as the once writing recording medium of the improvement utilization storage TDFL of record TDFL assigned region that one aspect of the present invention is to provide.
Beneficial effect
According to the present invention, can more effectively use the zone of once writing recording medium and reliable recording and reproduce TDFL more.Specifically, write back check processing and during record TDFL, be performed, and if produce defect cluster, then TDFL is rewritten in another bunch.Therefore, TDFL can be by high reliability ground record.Here, when defective was produced during record TDFL, the data that are recorded in the defect cluster were rewritten into replacement cluster, rather than write down whole TDFL again, indication TDFL by normal recordings therein bunch the pointer information of position be included among the TDDS, and TDSS is recorded among the TDMA.Therefore, the space of TDMA can not used up fast.
Description of drawings
Fig. 1 illustrates the structure according to the once writing recording medium of the embodiment of the invention;
Fig. 2 is according to the data recording of the embodiment of the invention and/or the block scheme of reproducer;
Fig. 3 is the process flow diagram that illustrates according to the method for the record TDFL of the embodiment of the invention;
Fig. 4 is used for explaining in detail according to writing the back check handling the diagrammatic sketch of creating TDFL;
Fig. 5 illustrates exemplary TDFL;
Fig. 6 is used to explain the diagrammatic sketch of handling according to the TDFL record back check of the embodiment of the invention;
Fig. 7 is used to explain the diagrammatic sketch of handling according to the TDFL record back check of the embodiment of the invention;
Fig. 8 illustrates the exemplary pointer information according to the position of the indication TDFL of the embodiment of the invention; With
Fig. 9 is the process flow diagram that illustrates according to the method for the reproduction TDFL of the embodiment of the invention.
Preferred forms
According to an aspect of the present invention, provide a kind of temporary defect list that will be used for defect management to be recorded in the method for once writing recording medium, this method comprises: will work as in the cluster at least that the temporary defect list that is created when data are recorded on the once writing recording medium is recorded in once writing recording medium, and whether check produces defective in the cluster at least at this; The data that are recorded in the defect cluster are recorded in another bunch, and will indicate write down temporary defect list therein this at least the pointer information of the position of cluster be recorded on the once writing recording medium.
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, temporary defect list comprises that the positional information and being used to of defect cluster replaces the positional information of the replacement cluster of defect cluster.
According to an aspect of the present invention, pointer information comprises the positional information of this another bunch that is not defect cluster.
According to an aspect of the present invention, pointer information is included in the temporary disk (T-disk) definition structure.Temporary defect list and temporary disk (T-disk) definition structure can be recorded in the temporary disk (T-disk) directorial area that is arranged on the once writing recording medium.
According to a further aspect of the invention, provide a kind of equipment that is used to write down and/or reproduce data, this equipment comprises: record/reading unit is used for being recorded in data on the once writing recording medium or from the once writing recording medium reading of data; And control module, be used for controlling recording/reading unit and will work as the cluster at least that the temporary defect list that is used for defect management that is created when data are recorded on the once writing recording medium is recorded in once writing recording medium.Control module also checks at this whether produce defective in cluster at least, the data that controlling recording/reading unit will be recorded in the defect cluster are recorded in another bunch, and controlling recording/reading unit will indicate write down temporary defect list therein this at least the pointer information of the position of cluster be recorded on the once writing recording medium.
According to an aspect of the present invention, temporary defect list comprises that the positional information and being used to of defect cluster replaces the positional information of the replacement cluster of defect cluster.
According to an aspect of the present invention, pointer information comprises the positional information of this another bunch that is not defect cluster.
According to an aspect of the present invention, pointer information is included in the temporary disk (T-disk) definition structure.
According to an aspect of the present invention, temporary defect list and temporary disk (T-disk) definition structure are recorded in the temporary disk (T-disk) directorial area that is arranged on the once writing recording medium.
According to a further aspect of the invention, the method of the temporary defect list that be used for defect management of a kind of reading and recording on once writing recording medium is provided, and this method comprises: the pointer information that obtains the position of indication record temporary defect list from once writing recording medium; With according to the cluster at least of pointer information Visitor Logs temporary defect list and read temporary defect list.
According to an aspect of the present invention, the position of the cluster at least of pointer information indication record temporary defect list.
According to an aspect of the present invention, pointer information is indicated this position of each in the cluster at least.
According to an aspect of the present invention, during the record temporary defect list, if defective is produced in cluster at least and data are recorded in another bunch, then pointer information can comprise the positional information of this another bunch that is not defect cluster.
According to an aspect of the present invention, temporary defect list comprises that the positional information and being used to of defect cluster replaces the positional information of the replacement cluster of defect cluster.
According to an aspect of the present invention, pointer information is included in the temporary disk (T-disk) definition structure.Temporary defect list and temporary disk (T-disk) definition structure can be recorded in the temporary disk (T-disk) directorial area that is arranged on the once writing recording medium.
According to a further aspect of the invention, provide a kind of equipment that is used to reproduce data, this equipment comprises: reading unit is used for the data of reading and recording on once writing recording medium; And control module; Be used to control reading unit and read the pointer information that the position of the temporary defect list that is used for defect management is write down in indication,, and read temporary defect list according to the cluster at least of pointer information Visitor Logs temporary defect list from a recording medium.
According to an aspect of the present invention, this of pointer information indication record temporary defect list position of cluster at least.Pointer information can be indicated this position of each in the cluster at least.
According to an aspect of the present invention, during the record temporary defect list, if defective is produced in cluster at least and data are recorded in another bunch, then pointer information comprises the positional information of this another bunch that is not defect cluster.
According to an aspect of the present invention, temporary defect list can comprise that the positional information and being used to of defect cluster replaces the positional information of the replacement cluster of defect cluster.
According to an aspect of the present invention, pointer information is included in the temporary disk (T-disk) definition structure.Temporary defect list and temporary disk (T-disk) definition structure can be recorded in the temporary disk (T-disk) directorial area that is arranged on the once writing recording medium.
According to a further aspect of the invention, provide a kind of once writing recording medium, having comprised: at least one user data area is used for user data; At least one spare area is used for replacing when defective is produced in user data area; With at least one temporary disk (T-disk) directorial area, be used to write down temporary defect list that is used for defect management and the pointer information of indicating the position of the cluster at least that writes down temporary defect list therein.
According to an aspect of the present invention, temporary defect list comprises that the positional information and being used to of the defect cluster of the user data area that produces defective replaces the positional information of replacement cluster of the spare area of defect cluster.
According to an aspect of the present invention, when temporary defect list is recorded in the cluster at least of temporary disk (T-disk) directorial area, if defective is produced in the cluster and data are recorded in another bunch at least at this, then pointer information comprises the positional information of this another bunch that is not defect cluster.Pointer information can be included in the temporary disk (T-disk) definition structure.
Embodiments of the present invention
To describe embodiments of the invention in detail now, its example represents that in the accompanying drawings wherein, identical label is represented identical parts all the time.Below by embodiment being described with reference to the drawings to explain the present invention.
Fig. 1 illustrates the structure according to the once writing recording medium 100 of the embodiment of the invention.The once writing recording medium 100 that shows among Fig. 1 has the single-recordng-layer that comprises Lead-In Area, data field and leading-out zone.
In Lead-In Area, be provided with disc management area 1 (DMA 1), disc management area 2 (DMA 2), main temporary disk (T-disk) directorial area (TDMA), Writing condition test section and drive information area.In the data field, be provided with the spare area 1 and spare area 2, inferior TDMA and the user data area that are used for replacing the defect cluster that produces at user data area.In leading-out zone, be provided with disc management area 3 (DMA 3) and disc management area 4 (DMA 4).
TDFL and temporary disk (T-disk) definition structure (hereinafter referred to as TDDS) are recorded among main TDMA and time TDMA.But TDDS comprises record position information, the write protection information of write condition test section and distributes to the spare area 1 of data field and 2 position and/or size information.Specifically, in the one side of present embodiment, TDDS comprises the pointer information of the position of indicating TDFL.The pointer information of the position of TDDS and indication TDFL will be described in detail after a while.
TDFL and TDDS at first are recorded among the main TDMA.After main TDMA was exhausted fully, TDFL and TDDS were recorded among time TDMA.According to user command or from the order of data recording and/or reproducer, the inferior TDMA that is included in the data field can maybe can not be assigned with, so that make the producer of user or data recording and/or reproducer can more effectively use once writing recording medium.
When once writing recording medium 100 was loaded into as shown in Figure 2 in data recording and/or the reproducer, data recording and/or reproducer were carried out initialization to use once writing recording medium 100.In other words, data recording and/or the information of reproducer reading and recording in Lead-In Area and/or leading-out zone, and determine how to manage once writing recording medium 100 and how to be recorded in data on the once writing recording medium 100 or how to reproduce data from once writing recording medium 100.When the data volume in being recorded in Lead-In Area and/or leading-out zone increased, data recording and/or reproducer preparation record or required time of reproduction processes also increased after once writing recording medium 100 is loaded into.In order to solve this and/or other problems, the notion of TDDS and TDFL is introduced into.
In other words, before once writing recording medium 100 was finally determined, TDFL and TDDS were updated and are recorded among the TDMA.After once writing recording medium 100 was finally determined, the TDFL of significant renewal and TDDS were recorded among one of DMA 1 to 4 as defect list (DFL) and defective definition structure (DDS).In addition, be recorded among the DMA 1 to 4 by TDFL and TDDS with significant renewal, once writing recording medium 100 can be reproduced at the equipment that is used for reproducing rewritable media 100.
Fig. 2 is according to the data recording of the embodiment of the invention and/or the block scheme of reproducer.With reference to Fig. 2, data recording and/or reproducer comprise record/reading unit 1, control module 2 and storer 3.Once writing recording medium 100 have with have Fig. 1 in the identical structure of once writing recording medium of the single-recordng-layer that shows.
According to the control of control module 2, record/reading unit 1 is recorded in data on the once writing recording medium 100 and/or from a recording medium 100 and reproduces data.During data recording, for the data of inspection record, the data of record are read out.
Whole operations of control module 2 control datas record and/or reproducer.In addition, when data are recorded on the once writing recording medium 100 and/or from once writing recording medium 100 when reproduced, control module 2 is created the TDFL that upgrades, the TDFL that upgrades is recorded on the once writing recording medium 100, and the TDDS that will comprise the pointer information of the position of indicating the TDFL that upgrades is recorded among the TDMA, thereby carries out defect management.When not required should be appreciated that control module 2 can be universal or special computing machine.
When once writing recording medium 100 is initialised when being used to use, the TDFL and the TDDS of the renewal of reading from once writing recording medium 100 are stored in the storer 3.Thereafter, if new user data is recorded, then defect management is carried out once more, create among the TDFL of control module 2 in being stored in storer 3 positional information comprise new defect cluster and with the TDFL of the new renewal of the positional information of the new corresponding replacement cluster of defect cluster, the TDFL that upgrades is recorded among the TDMA, and will indicates the pointer information of the position of writing down the TDFL that upgrades to be recorded among the TDMA.
Describe a kind ofly according to the embodiment of the invention TDFL to be recorded in method on the once writing recording medium 100 now with reference to Fig. 3, this method is carried out by data recording shown in Fig. 2 and/or reproducer.
Fig. 3 is the process flow diagram that the method for a kind of record TDFL according to the embodiment of the invention is shown.
Although be not presented among Fig. 3, when once writing recording medium 100 was loaded in data recording and/or the reproducer, initialization was performed to use once writing recording medium 100.In other words, control module 2 reads the TDFL and the TDDS of renewal from once writing recording medium 100, and TDFL and the TDDS that reads is stored in the storer 3.
Thereafter, if user data and user data record order are imported into once writing recording medium 100 from the main frame (not shown), then control module 2 records the user data on the once writing recording medium 100 with predetermined unit, and execution writes the data of back checked operation with inspection record.
During the predetermined time interval that just is being recorded when data, perhaps after finishing single data recording, data recording and/or reproducer create the positional information that comprises new defect cluster and with the TDFL of the new renewal of the positional information of the new corresponding replacement cluster of defect cluster, the TDFL that upgrades is recorded among the TDMA, and will comprises that the TDDS of the pointer information of indicating the position of writing down the TDFL that upgrades is recorded among the TDMA.
Fig. 4 is used for explaining in detail according to writing the back check handling the diagrammatic sketch of creating TDFL.Here, data are with the sector or bunch be that unit is processed.The sector is can be by the least unit of the data of the file system of computing machine or application program management.Bunch be the least unit that can once physically be recorded in the data on the dish.Usually, at least one sector is formed one bunch.
The sector is subdivided into physical sector and logic sector.Physical sector is the space of writing down therein with the dish of the corresponding data in sector.Be used to find the address of physical sector to be called as physical sector number (PSN).Logic sector is the sector location that is used for the data of managing file system or application program.Equally, logic sector number (LSN) is assigned to logic sector.
Data recording and/or reproducer use PSN to find and will be recorded in once writing recording medium 100 or the position of reproduced data on once writing recording medium 100, be used for writing down or reproducing the data computing machine or application program is that unit manages all data with the logic sector, and using LSN to find the position of data.Relation between LSN and the PSN produces according to defective and the initial position of record data is shone upon by control module 2.
With reference to Fig. 4, A represents user data area, and B represents the spare area.In user data area A and spare area B, exist PSN to be given its a plurality of physical sector (not shown)s by order assignment.LSN is assigned at least one physical sector unit.Yet except that the defect area of the user data area A that produces defective, LSN is assigned to the replacement district of spare area B.Consequently, although physical sector is identical with the logic sector size, if defect area is produced, then PSN and LSN dissimilate.
User data is recorded among the user data area A according to 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, user data need not be by record continuously, but by recorded at random.1. write the cellular zone that the back checked operation is performed therein to 7. indicating.
Data recording and/or reproducer record the user data in cellular zone 1. in, whether whether data recording and/or reproducer turn back to cellular zone initial and inspection user data 1. and are produced by normal recordings or defective.If produce the bunch found of defective therein, then this bunch is identified as defect cluster and is designated as defect area, i.e. defective #1, as shown in Figure 4.
In addition, data recording and/or the reproducer user data that will be recorded among the defective #1 re-writes spare area B.The part of the spare area B that is rewritten of user data is designated as and replaces #1 therein.Then, record the user data in cellular zone 2. in after, then whether whether data recording and/or reproducer turn back to cellular zone initial and inspection user data 2. and are produced by normal recordings or defective.If the cluster at least that produced of defective is found therein, then this at least cluster be designated as defective 2..With with above-mentioned same mode, to replace #2 accordingly designated with defective #2.In addition, cellular zone 3. in, defect area, promptly defective # 3 and with defective # 3 to replace #3 accordingly designated.Cellular zone 4. in, do not have defective found and do not have a defect area.
The record and check be done until cellular zone 4. after, if expectation (for example stops recording operation #1, if the record that the user presses ejector button or distributes to the user data of recording operation #1 is done), then create TDFL#1 among data recording and/or the reproducer previous TDFL in being stored in storer 3, in TDFL#1 in the 1. positional information of the defective #1 to #3 of generation and be updated in 4. of cellular zone with positional information that defective #1 to #3 replaces #1 to #3 accordingly.
When once writing recording medium 100 was packed into data recording and/or reproducer once more, control module 2 read the TDFL#1 of precedence record from once writing recording medium 100, and the TDFL#1 that reads is stored in the storer 3.Thereafter, in case recording operation #2 begin, with recording operation #1 in identical mode, data are recorded and defect management is performed.
In other words, in recording operation #2,5. to 7. being performed, therefore, defective #4 and #5 and corresponding replacement #4 and #5 are designated from cellular zone for the check after the user data.After recording operation #2 is terminated, create TDFL#2 among data recording and/or the reproducer previous TDFL#1 in being stored in storer 3, the positional information of the positional information of defective #4 and #5 and replacement #4 and #5 is updated in TDFL#2.
Fig. 5 illustrates exemplary TDFL.With reference to Fig. 5, the positional information of all defect on the once writing recording medium 100 bunch is included in first row of TDFL, and is included in the secondary series of TDFL with the positional information of the corresponding replacement cluster of defect cluster.In the one side of present embodiment, the position of defect cluster or replacement cluster uses the PSN of first sector separately of defect cluster or replacement cluster to be instructed to.Yet according to aspects of the present invention, the position of defect cluster or replacement cluster can use the PSN or the use of the last sector separately of defect cluster or replacement cluster to indicate the index of defect cluster or replacement cluster to be instructed to.
Return with reference to Fig. 3, in case TDFL is created as mentioned above, then control module 2 is recorded in the TDFL that creates in the cluster at least of TDMA, and the TDFL of inspection record (operation S510).According to the result of check, if defect cluster record TDFL bunch among produced, then control module 2 will be recorded in data rewrite in the defect cluster and go into (operation S530) in another bunch of TDMA.
To two exemplary embodiments of TDFL record back check be described now.
Fig. 6 is the diagrammatic sketch according to the TDFL record back check of the embodiment of the invention.According to illustrated embodiment of the present invention, when the TDFL that equals a plurality of bunches size when its size was recorded among the TDMA, whole TDFL was recorded and is verified subsequently.
With reference to Fig. 6, the size of TDFL is to comprise first bunch 210, second bunches 230, the 3rd bunches 250 three bunches, and TDFL is recorded in three bunches and subsequently and is verified.According to the result of check, it determines that defective is produced in second bunch 230.Therefore, being recorded in data in second bunch 230 is rewritten into immediately following bunches 270 after the 3rd bunch 250.After bunches 270 check, if determine not to produce defective in bunches 270, then the record of TDFL is terminated, and indication write down therein TDFL bunch the pointer information of position be included among the TDDS, and TDDS is recorded among the TDMA.At this moment, pointer information comprises indication does not produce the position of first bunch 210 of defective and the 3rd bunch 250 and replaces defective second bunch 230 bunch 270 position during original records pointer.
Fig. 7 is used to explain the diagrammatic sketch of TDFL record back check according to another embodiment of the present invention.According to illustrated embodiment of the present invention, TDFL has three bunches size.TDFL is recorded in first bunch 310 and is verified subsequently.Result according to check determines not produce defective in first bunch 310.TDFL is recorded in second bunch 330 and is verified.Result according to check determines that defective is produced in second bunch 330.Therefore, be recorded in TDFL in second bunch 330 and be rewritten into bunches 350 after immediately following defective second bunch 330.After bunches 350 check, if determine not produce defective in bunches 350, then TDFL is recorded in the 3rd bunch 370 and is verified.After the 3rd bunch 370 of check, if determine not produce defective, then the record of TDFL is terminated, and indication write down therein TDFL bunch the pointer information of position be recorded among the TDDS, and TDDS is recorded among the TDMA.Among the embodiment as Fig. 6, pointer information comprises indication does not produce the position of first bunch 310 of defective and the 3rd bunch 370 and replaces defective second bunch 330 bunch 350 position during original records pointer.
Fig. 8 illustrates the exemplary pointer information of the position of indication TDFL according to an aspect of the present invention.Pointer displayed information comprises k pointer 410,430 and 450 among Fig. 8.Data recording and/or reproducer come sequentially TDFL to be recorded in k bunch by reproducing the pointer information shown in Fig. 8, and k bunch position can be in sight.
In the present embodiment, the n bunch of pointer of TDFL (n is a scope from 1 to k integer) has 4 byte-sized.In addition, pointer information is included among the TDDS.In other words, but TDDS comprises the pointer information of the position of indicating TDFL, about information, the write protection information of the record position of Writing condition test section with distribute to the position and/or the size information of the spare area of data field.
Because TDDS should comprise the pointer information of the position of indicating TDFL, so TDDS should always be recorded after TDFL is recorded.
As mentioned above, according to the method and apparatus that is used to write down TDFL, if can have high reliability ground record TDFL in another bunch by during record TDFL, carrying out to write the back check and to produce defect cluster then TDFL re-writed.In addition, when being produced during the record of defective at TDFL, the data that only are recorded in the defect cluster are recorded in the replacement cluster, rather than write down whole TDFL again.With reference to Fig. 3, at operation S550, indicate normal recordings TDFL therein bunch the pointer information of position be included among the TDDS, and TDDS is recorded among the TDMA.Therefore, can preserve storage space among the TDMA.
To be described a kind of method and apparatus that is used to reproduce TDFL now according to the embodiment of the invention.
The equipment that is used to reproduce TDFL uses data recording and/or the reproducer shown in Fig. 2.Yet, be reproducer only if be used to reproduce the equipment of TDFL, record/reading unit 1 and control module 2 can only be carried out data read.
Fig. 9 is the process flow diagram that illustrates according to the method for the reproduction TDFL of the embodiment of the invention.Although do not show in the accompanying drawings, but when according to said method user data, TDFL and TDDS being recorded in wherein once writing recording medium 100 when being loaded into data recording and/or reproducer, control module 2 is carried out initialization to use once writing recording medium 100.In other words, use and manage once writing recording medium 100 required master datas and be read from once writing recording medium 100.
Specifically, after the TDDS that upgrades is positioned and reads, the pointer information of the position of the TDFL that indication is upgraded obtained from the TDDS that upgrades (operation S610).The pointer information of the position of the TDFL that indication is upgraded has the structure that shows among Fig. 8.
Since control module 2 can from pointer information, obtain TDFL that record upgrades bunch position and the order of TDFL in being recorded in bunch, so it reads the TDFL (operating S630) of renewal.The TDDS and the TDFL of the renewal that control module 2 will read from once writing recording medium 100 are stored in the storer 3.Control module 2 can come zero defect ground to reproduce the user data that is recorded on the once writing recording medium 100 with reference to the TDDS and the TDFL that are stored in the storer 3.
The present invention can also be implemented as the computer-readable code in the computer readable recording medium storing program for performing.Computer readable recording medium storing program for performing comprises all types of recording units that can be stored in by the data of computer system reads wherein.This computer readable recording medium storing program for performing is ROM, RAM, CD-ROM, tape, floppy disk and optical data memories and via the transmission as the carrier wave of internet.In addition, computer readable recording medium storing program for performing can be distributed among the computer system that network connects, and computer-readable code can be stored thereon and with dispersing mode and is performed.
In addition, should be appreciated that method of the present invention can be used in TDMA and will be stored in wherein polytype medium, these media comprise can write optical medium (for example CD-R, DVD-R), rewritable media (for example CD-R/W, DVD-R/W, DVD-RAM), magnetic and magnet-optical medium and as the DVD of future generation of Blu-ray disc, Advanced Optical Disc (AOD), E-DVD.
Although shown and described some embodiments of the present invention, it should be appreciated by those skilled in the art under situation about not breaking away from by the principle of the present invention of claim and its equivalent limited range and spirit, can change embodiment.
Claims (4)
1. equipment that is used to write down about the data of once writing recording medium, this equipment comprises:
Record cell is used for data are recorded in once writing recording medium;
Control module, be used for temporary defect list that control recording unit will be used for defect management and be recorded in a plurality of bunches of once writing recording medium, whether check is producing defective in the cluster at least, the data that control recording unit will be recorded in the defect cluster are recorded in the replacement cluster, and control recording unit will indicate the information of replacement cluster and the described a plurality of bunches position except that defect cluster to be recorded in the temporary disk (T-disk) definition structure.
2. equipment as claimed in claim 1, wherein, temporary defect list comprises the positional information of defect cluster and the positional information of replacement cluster.
3. equipment as claimed in claim 1, wherein, control module is bunch to be unit record and to check temporary defect list.
4. equipment as claimed in claim 1, wherein, temporary defect list and temporary disk (T-disk) definition structure are recorded in the temporary disk (T-disk) directorial area that is arranged on the once writing recording medium.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0027542 | 2003-04-30 | ||
| KR20030027542 | 2003-04-30 | ||
| KR1020030027542 | 2003-04-30 | ||
| KR1020040015602A KR100677113B1 (en) | 2003-04-30 | 2004-03-08 | Method of recording temporary defect list in write-once recording medium, method of reproducing temporary defect list, recording and/or reproducing apparatus, and write-once recording medium therefor |
| KR10-2004-0015602 | 2004-03-08 | ||
| KR1020040015602 | 2004-03-08 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800014155A Division CN100385520C (en) | 2003-04-30 | 2004-04-29 | Method of recording and/or reproducing temporary defect list, recording and/or reproducing apparatus, and write-once recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101202089A true CN101202089A (en) | 2008-06-18 |
| CN101202089B CN101202089B (en) | 2010-07-21 |
Family
ID=35578617
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710167066XA Expired - Lifetime CN101202089B (en) | 2003-04-30 | 2004-04-29 | Device for recording data about once writing recording medium |
| CN2006101687168A Expired - Lifetime CN1975909B (en) | 2003-04-30 | 2004-04-29 | Method of recording and/or reproducing defect list, recording and/or reproducing apparatus |
| CN2007101670655A Expired - Lifetime CN101202088B (en) | 2003-04-30 | 2004-04-29 | Method of managing temporary defect list |
| CNB2004800014155A Expired - Lifetime CN100385520C (en) | 2003-04-30 | 2004-04-29 | Method of recording and/or reproducing temporary defect list, recording and/or reproducing apparatus, and write-once recording medium |
| CN2007101670689A Expired - Lifetime CN101202090B (en) | 2003-04-30 | 2004-04-29 | Device for recording and/or reproducing data about once writing recording medium |
| CN2007101670674A Expired - Lifetime CN101145373B (en) | 2003-04-30 | 2004-04-29 | Method for recording data about write-once recording medium |
Family Applications After (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101687168A Expired - Lifetime CN1975909B (en) | 2003-04-30 | 2004-04-29 | Method of recording and/or reproducing defect list, recording and/or reproducing apparatus |
| CN2007101670655A Expired - Lifetime CN101202088B (en) | 2003-04-30 | 2004-04-29 | Method of managing temporary defect list |
| CNB2004800014155A Expired - Lifetime CN100385520C (en) | 2003-04-30 | 2004-04-29 | Method of recording and/or reproducing temporary defect list, recording and/or reproducing apparatus, and write-once recording medium |
| CN2007101670689A Expired - Lifetime CN101202090B (en) | 2003-04-30 | 2004-04-29 | Device for recording and/or reproducing data about once writing recording medium |
| CN2007101670674A Expired - Lifetime CN101145373B (en) | 2003-04-30 | 2004-04-29 | Method for recording data about write-once recording medium |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP4709297B2 (en) |
| KR (1) | KR100677113B1 (en) |
| CN (6) | CN101202089B (en) |
| HK (6) | HK1082110A1 (en) |
| MY (1) | MY149257A (en) |
| RU (2) | RU2460156C2 (en) |
| SG (3) | SG160215A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4882861B2 (en) * | 2007-05-11 | 2012-02-22 | ソニー株式会社 | Playback device and management information acquisition method |
| KR102049251B1 (en) * | 2018-05-29 | 2019-11-28 | (주)넥스챌 | Microgrid gateway of collecting data and control method thereof |
| CN113701466B (en) * | 2021-08-30 | 2022-08-02 | 江西省农业科学院农产品加工研究所 | Drying method and application of citrus olives |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0223417A (en) * | 1988-07-13 | 1990-01-25 | Matsushita Electric Ind Co Ltd | Information recording system and information recording medium |
| JPH06338139A (en) * | 1993-05-31 | 1994-12-06 | Olympus Optical Co Ltd | Alternate processing method in information recording of writing once type information recording medium |
| JPH09167446A (en) * | 1995-12-14 | 1997-06-24 | Sony Corp | Recording and reproducing device |
| CN1098524C (en) * | 1996-03-18 | 2003-01-08 | 松下电器产业株式会社 | Method for substituting defective recording of discoid recording medium and discoid recording medium recording and reproducing device |
| JP2848809B2 (en) * | 1996-03-25 | 1999-01-20 | 株式会社東芝 | Replacement processing method |
| JPH10222316A (en) * | 1997-02-12 | 1998-08-21 | Sony Corp | System, device, and method for reproduction |
| JPH1139801A (en) * | 1997-07-14 | 1999-02-12 | Olympus Optical Co Ltd | Method for recording information |
| US6205099B1 (en) * | 1997-11-14 | 2001-03-20 | Matsushita Electric Industrial Co., Ltd. | Disk defect management method and disk recording and reproducing apparatus |
| RU2192673C2 (en) * | 1998-04-20 | 2002-11-10 | Самсунг Электроникс Ко., Лтд. | Record medium for data storage (alternatives), method for handling defects, and method for real- time data recording |
| AU4657099A (en) * | 1998-07-28 | 2000-02-21 | Lg Electronics Inc. | Method and apparatus of recording data in the optical recording medium |
| US6160778A (en) * | 1999-03-08 | 2000-12-12 | Matsushita Electric Industrial Co., Ltd. | Information recording medium, information recording method, information recording apparatus and information reproducing apparatus |
| KR100544175B1 (en) * | 1999-05-08 | 2006-01-23 | 삼성전자주식회사 | Recording medium storing linking type information and method for processing defective area |
| JP3971117B2 (en) * | 2001-03-22 | 2007-09-05 | 株式会社東芝 | Information recording medium, information recording apparatus, information recording method, information reproducing apparatus, and information reproducing method |
| JP2004014088A (en) * | 2002-06-11 | 2004-01-15 | Sony Corp | Disk recording medium, recording method and disk drive system |
| TWI330831B (en) * | 2002-09-26 | 2010-09-21 | Lg Electronics Inc | Optical disc, method and apparatus for managing a defective area on an optical disc of write once type |
| TWI334595B (en) * | 2003-01-27 | 2010-12-11 | Lg Electronics Inc | Optical disc, method and apparatus for managing a defective area on an optical disc |
| JP4026517B2 (en) * | 2003-03-12 | 2007-12-26 | ソニー株式会社 | Recording medium, recording apparatus, and recording method |
-
2004
- 2004-03-08 KR KR1020040015602A patent/KR100677113B1/en active IP Right Grant
- 2004-04-27 MY MYPI20041533A patent/MY149257A/en unknown
- 2004-04-29 CN CN200710167066XA patent/CN101202089B/en not_active Expired - Lifetime
- 2004-04-29 SG SG200717316-4A patent/SG160215A1/en unknown
- 2004-04-29 CN CN2006101687168A patent/CN1975909B/en not_active Expired - Lifetime
- 2004-04-29 SG SG200717317-2A patent/SG160216A1/en unknown
- 2004-04-29 CN CN2007101670655A patent/CN101202088B/en not_active Expired - Lifetime
- 2004-04-29 CN CNB2004800014155A patent/CN100385520C/en not_active Expired - Lifetime
- 2004-04-29 SG SG200717315-6A patent/SG160214A1/en unknown
- 2004-04-29 CN CN2007101670689A patent/CN101202090B/en not_active Expired - Lifetime
- 2004-04-29 CN CN2007101670674A patent/CN101145373B/en not_active Expired - Lifetime
-
2006
- 2006-04-01 HK HK06104038A patent/HK1082110A1/en not_active IP Right Cessation
- 2006-04-01 HK HK08111917.9A patent/HK1116912A1/en not_active IP Right Cessation
- 2006-04-01 HK HK08111916.0A patent/HK1116911A1/en not_active IP Right Cessation
- 2006-04-01 HK HK08111915.1A patent/HK1116910A1/en not_active IP Right Cessation
- 2006-04-01 HK HK07108577.7A patent/HK1100587A1/en not_active IP Right Cessation
- 2006-04-01 HK HK08108173.4A patent/HK1112656A1/en not_active IP Right Cessation
-
2008
- 2008-02-12 RU RU2008105319/28A patent/RU2460156C2/en active
- 2008-02-12 RU RU2008105320/28A patent/RU2457553C2/en active
-
2009
- 2009-05-18 JP JP2009120329A patent/JP4709297B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| SG160216A1 (en) | 2010-04-29 |
| CN101145373B (en) | 2010-06-02 |
| CN1975909A (en) | 2007-06-06 |
| HK1112656A1 (en) | 2008-09-12 |
| JP2009181693A (en) | 2009-08-13 |
| HK1116911A1 (en) | 2009-01-02 |
| CN101202089B (en) | 2010-07-21 |
| KR100677113B1 (en) | 2007-02-01 |
| SG160215A1 (en) | 2010-04-29 |
| SG160214A1 (en) | 2010-04-29 |
| CN101202090A (en) | 2008-06-18 |
| CN100385520C (en) | 2008-04-30 |
| CN101202088B (en) | 2010-06-02 |
| RU2457553C2 (en) | 2012-07-27 |
| MY149257A (en) | 2013-07-31 |
| HK1082110A1 (en) | 2006-08-25 |
| HK1100587A1 (en) | 2007-09-21 |
| KR20040094301A (en) | 2004-11-09 |
| CN1975909B (en) | 2010-05-19 |
| HK1116912A1 (en) | 2009-01-02 |
| HK1116910A1 (en) | 2009-01-02 |
| CN101202090B (en) | 2011-03-16 |
| RU2008105319A (en) | 2009-08-20 |
| RU2460156C2 (en) | 2012-08-27 |
| CN101202088A (en) | 2008-06-18 |
| CN101145373A (en) | 2008-03-19 |
| CN1705986A (en) | 2005-12-07 |
| RU2008105320A (en) | 2009-08-20 |
| JP4709297B2 (en) | 2011-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100454423C (en) | Method and system for managing shortage position in data storage medium | |
| US7710841B2 (en) | Method of recording temporary defect list on write-once recording medium, method of reproducing the temporary defect list, recording and/or reproducing apparatus, and the write-once recording medium | |
| CN101025980A (en) | Write-once optical disc, and method and apparatus for recording management information on write-once optical disc | |
| CN101783158A (en) | Recording/reproducing apparatus for performing rmw for low and recording/reproducing method therefor | |
| CN101202089B (en) | Device for recording data about once writing recording medium | |
| CN101059986B (en) | Method of and apparatus for recording data on write-once disc and write-once disc therefor | |
| CN101067951B (en) | Recording and/ or reproduction device | |
| CN100592407C (en) | Method of and drive for recording medium defect management, and defect managed recording medium | |
| CN101312064B (en) | Optical recording medium, recording/ reproducing device and method | |
| CN101079272B (en) | Method for recording data on recording medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1116912 Country of ref document: HK |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1116912 Country of ref document: HK |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20080618 Assignee: TONLY ELECTRONICS HOLDINGS Ltd. Assignor: Blue light United Co.,Ltd. Contract record no.: 2014990000240 Denomination of invention: Device for recording data about once writing recording medium Granted publication date: 20100721 License type: Common License Record date: 20140423 Application publication date: 20080618 Assignee: Shenzhen Maxmade Technology Co.,Ltd. Assignor: Blue light United Co.,Ltd. Contract record no.: 2014990000239 Denomination of invention: Device for recording data about once writing recording medium Granted publication date: 20100721 License type: Common License Record date: 20140423 Application publication date: 20080618 Assignee: CHINA HUALU GROUP Co.,Ltd. Assignor: Blue light United Co.,Ltd. Contract record no.: 2014990000238 Denomination of invention: Device for recording data about once writing recording medium Granted publication date: 20100721 License type: Common License Record date: 20140423 Application publication date: 20080618 Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Assignor: Blue light United Co.,Ltd. Contract record no.: 2014990000237 Denomination of invention: Device for recording data about once writing recording medium Granted publication date: 20100721 License type: Common License Record date: 20140423 Application publication date: 20080618 Assignee: GUANGZHOU PANYU JUDA CAR AUDIO EQUIPMENT Co.,Ltd. Assignor: Blue light United Co.,Ltd. Contract record no.: 2014990000233 Denomination of invention: Device for recording data about once writing recording medium Granted publication date: 20100721 License type: Common License Record date: 20140422 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20080618 Assignee: Dongguan de video technology Co.,Ltd. Kit Assignor: Blue light United Co.,Ltd. Contract record no.: 2016990000233 Denomination of invention: Device for recording data about once writing recording medium Granted publication date: 20100721 License type: Common License Record date: 20160614 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |
|
| CX01 | Expiry of patent term |