Unitary record media and method, and defective zone control unit for unitary record media

FIELD: information technologies.

SUBSTANCE: defect-management method on the unitary record optical media having at least one recordable layer is announced. The defect-management method includes selection steps of, at least one substituting zone and several temporary defect-management zones on the recording media. According to the defect-management method, recording of the defect-management information is performed, at least, in one of the temporary defect-management zones.

EFFECT: improved method of record and defect-management.

42 cl, 13 dwg

 

The technical field to which the invention relates.

The present invention relates to optical media is write-once, as well as to a method and device control information management defects on the medium, and more particularly to a method and apparatus of allocating time zones defect management, the method of allocating the backup area for defect management and the optical write-once media, such as disk format "Blu-ray", which highlighted time zone defect management and back area.

The level of technology

Optical discs, which is a type of optical recording media and has been widely used in recent times, can accommodate a large amount of data. Currently under development is a new digital versatile disk with high recording density (HD-DVD), such as disk format "Blu-ray". On this disc you can record and store high-quality video and audio with high fidelity in a long time.

Disc "Blu-ray" is a solution for optical recording of the next generation, which can store a vast amount of data than the traditional format disc "DVD".

Disc "Blu-ray" typically uses a blue-violet laser with a wavelength of 405 nm. This wavelength is shorter than the red is Azer, used for traditional disk "DVD". Wavelength red laser 650 nm. Disc format Blu-ray has a thickness of 1.2 mm and a diameter of 12 cm and includes a translucent layer thickness of approximately 0.1 mm, So the disk Blu-ray can store large amounts of data than a conventional DVD.

A device for recording data on an optical disc, such as disc "Blu-ray", and they are read from disk is presented in Figure 1. This device includes the optical head 11 for recording on the optical disk 10 and the read out signal, the system 12 entry on the VCD "VDR" to convert the signal received from the optical head 11, a playback signal or for modulation and conversion of the outer entered the stream data in the recording signal suitable for recording, and an encoder 13 for encoding introduced external analog signal and the encoded analog signal to the system 12 entry on the VCD "VDR".

Disc "Blu-ray" may be a rewritable type, which is hereinafter referred to as a rewritable disc Blu-ray disc BD-RE. Drive "BD-RE" has the ability rewriting, which allows to record, erase and re-record it with video and audio data.

As shown in figure 2, the drive "BD-RE" is divided into the initial area "LIA", the data area and the destination area "LOA", and at the beginning and it is nce data region allocated internal reserved area "ISA" and external backup area "OSA".

Together with the drive "BD-RE", configured as described above, the system 12 entry on the VCD "VDR" device read/write optical disks, shown in figure 1, encodes and modulates the outer entered data into a signal suitable for recording, and writes it to a unit displacement in one cluster corresponding to the block of error correction. If in the data area during recording of data on the drive "BD-RE" there is a defective area, the data in the unit of volume in one cluster, recorded in the defective area is recorded in a reserved area (for example, in the internal reserved area on the disk drive "BD-RE") in accordance with the operation of a linear substitution. Can be made a series of operations linear substitution.

Accordingly, the system 12 entry on the VCD "VDR" device read/write optical disk drive writes the data unit volume in one cluster, recorded in the defective area, back area, even if the defective area occurred in the data area of the rewritable disc "Blu-ray". When the playback operation for rewritable disc "Blu-ray", that reads and reproduces data recorded in the backup area, so the error in the data record can be removed.

Developed a variety of standards related to disc "Blu-ray".

In this regard, the second type of disc "Blu-ray", on which the data is e recorded again repeatedly (not writable), but recorded only once, is referred to below as the disk Blu-ray write-once (DVD - BD-WO"). Disc Blu-ray write-once comfortable, when there is no need to repeatedly overwrite the data. On the drive "BD-WO" to manage defective areas.

Because the drive "BD-RE" data can be recorded repeatedly (in accordance with the characteristics of the drive "BD-RE"), the size of the zone defect management "DMA" for rewritable disc "Blu-ray" is relatively small (see zone DMA 1 DMA 4" in figure 2). However, as data is written to disk Blu-ray write-once, only once, the area required for managing defective areas to drive "BD-WO", must be greater than the area required for the drive "BD-RE". Accordingly, a large enough area management defects should be assigned to drive "BD-WO".

Disc Blu-ray, such as drive "BD-WO", which allocated sufficient size area management defects, can store data in the volume, even more than traditional disk "DVD"when applied technology dual-layer recording in cross-section, in accordance with which, using a lens with a numerical aperture of 0.85, the two recording layers are on one side of the disc. The increase in storage capacity is achieved due to the proximity of the noise through the lens of the beam irradiating optical is on the third disk.

Disc "Blu-ray" typically uses a lens with a large numerical aperture, has a high recording density and track pitch of 0.32 μm. The optical disk manufactured by the technology of Blu-ray, can reproduce data at a much greater rate than the disks, DVD-ROM and CD-ROM". When formatting the video and audio data in order to ensure compatibility with traditional technologies should be used technologies used today for discs "DVD", such as "MPEG2" (video), "AC3", "MPEG I" and "Layer 2" (for audio data). Specifications model drive "HD-DVD" (such as for a BD-WO), which ensures effective protection of data must be such that these data can be recorded and reproduced with the most common discs "DVD", currently used.

The invention

Thus, the present invention is focused on the optical write-once media, such as disk drive "BD-WO", control method of information management of defects on the medium and a device for implementing this method that substantially obviate one or more problems related to limitations and disadvantages of the prior art.

The present invention is to provide a method for managing information managing defects on an optical write-once media and recording media, with the holding area for data recording the defect management.

Another objective of the present invention is to provide a method of defect management for a disc "Blu-ray" and the recording media containing the recording area of the information control defects.

Additional advantages, objectives and features of the present invention will be presented in part in the description below, and in part will be obvious to a person skilled in the art after study of this specification or may be learned during the practical application of the invention. The objectives and other advantages of the present invention may be realized and attained by means of structure, presented in detail in the description and the claims, and accompanying drawings.

To achieve these objectives and other advantages and in accordance with the present invention, as implemented and described in detail below, the method of defect management for optical write-once media includes a method of managing defects on an optical carrier with a single account that has at least one recording layer, the method including the steps of allocating an optical disc, at least one replacement area and multiple time zones defect management, and information recording control defects in at least one of the multiple time zones defect management.

In other olnamespace the present invention presents a device management defects on the optical write-once media, having at least one recording layer containing a means for selecting at least one replacement area and multiple time zones managing defects on an optical disc, and time zone management defects presented separately; and means for recording information management defects in at least one of these time zones defect management.

Another objective of the present invention is an optical write-once media, having at least one replacement area and several time zones management defects, and time zone management defects are presented separately.

It should be understood that both the foregoing General description and following detailed description of the present invention serve as example and explanation and are intended to provide further disclosure of the invention in accordance with the invention.

Brief description of drawings

Additional objectives and advantages of the present invention will be better understood upon studying the following description with reference to the accompanying drawings.

1 schematically illustrates a typical device recording and playback of the optical disk.

Figure 2 shows the configuration area for recording data on the disc format BD-RE".

Figure 3 is a schematic representation of the configuration of the device is TBA recording and reproducing optical disc format BD-WO in accordance with the present invention.

Figure 4 shows one example of the recording area for optical write-once media in accordance with one example implementation of the present invention.

Figure 5 shows another example of the recording area for optical write-once media in accordance with another embodiment of the present invention.

Figure 6 shows another example of the recording area for optical write-once media in accordance with one example implementation of the present invention.

7 shows another example of the recording area for optical write-once media in accordance with another embodiment of the present invention.

On Fig shows how to use the time zone defect management in accordance with the present invention.

Figure 9 shows another example of a usage time zone defect management in accordance with the present invention.

Figure 10 shows the method of forming the temporary management information defects in accordance with the present invention.

Figure 11 shows another example of a method of forming temporary information management defects in accordance with the present invention.

On Fig shows an example of the configuration of the temporary definition structure disk "TDDS" and the content of the information in accordance with the exemplary embodiment of the present invention.

On Fig schematically shows an example of a configuration flag fill time zone defect management in accordance with the present invention.

Preferred examples of carrying out the invention

Next will be explained in detail preferred embodiments of the present invention, which are illustrated in the accompanying drawings. On all drawings will be 15 to use the same item numbers to denote the same components.

As shown in Figure 3, the recording and reproduction of optical discs for disc format BD-WO in accordance with the present invention includes: the optical head 22 to write data on the optical recording medium 21, such as drive "BD-WO", and read them with him; block 23 servo of the optical pickup to the control unit of the optical head 22 and maintain the distance between the objective lens in the optical head 22 and the optical recording medium 21 and to track the corresponding track; a data processor 24 for processing and filing the input data block the optical head 22; the interface 25 to communicate with the external computer 30; memory (memory unit) 27 for storing information related to defect management, and microcomputer 26 for controlling the above units. All components of the device 20 on erative related. Computer 30 (host) connected to the interface 25 of the device 20 for recording data on the optical recording medium 21 and playback, as well as for exchange of commands and data.

When the loaded optical recording media, such as disk drive "BD-WO, the device 20 loads of information regarding the management of defects, such as information management zones defects "DMA", the information of the time zone defect management "TDMA", etc. in the memory 27 or other suitable storage location. During operation, the memory 27 is periodically updated in accordance with the operation of the defect management. This control method can be implemented using the device shown 10 in figure 1 and Figure 3, or other suitable devices or systems.

Figure 4 shows an example configuration of a recording area of the disc is BD-WO in accordance with one embodiments of the present invention. Shown in Figure 4 drive "BD-WO" is a disc with a single-layer structure (i.e., one layer recording). Also the disc is BD-WO", shown in figure 4, includes an initial area "LIA", the data area and the destination area "LOA". The user data area is located in a data region. The start and end of the area include the final or permanent zone management defects ("DMA I" - "DMA 4"). The arrows shown in each respective area, are used as examples on what I specify the direction of the data record.

Time zone management defects ("TDMA I or 2 TDMA"), in accordance with the present invention is provided in the primary area of the disk BD-WO". Here you can define the difference of time zones defect management "TDMA" permanent zone management defects ("DMA 1 and DMA 2", "DMA 3 or DMA 4"). More specifically, the time zone defect management "TDMA" have disk "BD-WO, which is used to temporarily record information management defects and manage up until the disc is BD-WO" is not completed. Subsequently, the information of the defect management is recorded at least in one of several areas management defects, such as DMA I"-"DMA 4, a recording layer, shown in Figure 4. The disc is BD-WO" is completed, for example when he completed the writing of data in the user data area of the disc is BD-WO".

The data area of the disc is BD-WO", shown in figure 4, includes a user data area internal reserved area "ISA0 and external backup area OSA0". External backup area OSA0 has a second time zone defect management "TDMA 2". External backup area OSA0" may include the replacement area "R/A" for the replacement data record located in the defective area in the user data area. All external backup area ISA0" can be used as a replacement of the surrounding area "R/A". That is, in the exemplary embodiment of the present invention, is shown in Figure 4, time zone management defects ("TDMA 1", "2 TDMA") are formed separately in certain areas of the drive "BD-WO". For example, the time zone defect management "TDMA 1" is formed in the initial area, and the area "TDMA 2" - external backup area. Examples of these defined areas are the inner and outer annular area of the disc is BD-WO". In particular, figure 4 shows schematically the inner ring region is formed in the inner zone and the outer annular region of the end section of the data area.

The size of the time zone defect management "TDMA 2"provided in the outer annular area of a BD-WO, can be fixed. On the other hand, the size of the time zone defect management "TDMA 2" can be changed in accordance with the size of the backup area (for example, external backup area "OSA 0"). In a more specific example, if the size of the external backup area, OSAO" is N×256 clusters, the size of the time zone defect management "TDMA 2" is M×256 clusters, where M is an integer defined by N/4 (M=N/4). For example, if N=64, the size of the external backup area OSA0" will be 16384 cluster, and the size of the time zone defect management "TDMA 2" - 4096 clusters, since M=N/4.

There are several causes of the capacity is ü change the size of the time zone defect management "TDMA 2", formed in the outer annular region, in accordance with the size of the external backup area OSA0". One of the reasons is that when the replacement area for the data to be written, provided in the backup area, the size of the replacement area, the size of the temporary management area defects and the amount of the reserve areas are interdependent. If the size of one of these zones is reduced, the size of the other zones can be increased (and Vice versa). Compared to the size of the time zone defect management "TDMA 2" in this particular example embodiment of the invention the size of the time zone defect management "TDMA 1"provided in the inner annular area (initial area), retains a fixed value. Time zone defect management "TDMA 1"provided in the initial area in accordance with this exemplary embodiment of the present invention may be used in accordance with the use time zone defect management "TDMA 2". For example, if the time zone defect management "TDMA 2"provided in the external backup area OSA0", is not used for defect management, can be allocated a reserved area size "0". As a result, the size of the time zone defect management "TDMA 2" becomes equal to "0". This situation can occur when the entire area of the data is x is used to record user data. However, the time zone defect management "TDMA 1" in the initial region may still be available and can be accessed control functions and describe the characteristic information using the structure definition disc "DDS". However, the structure of the disk definition "DDS" may be available to manage the list of defects. More details on this issue will be discussed below with reference to Figure 10 and 11.

If in the user data area is detected defective area, the data to be write-in defective area is recorded in the replacement area "R/A", and information management defects associated with the defective area is recorded in one or more time zones defect management "TDMA 1" and "2 TDMA".

Figure 5 shows an example embodiment of the invention, which illustrates another configuration of the drive "BD-WO". Shown in Figure 5 disc BD-WO" is a single disk configuration, which includes the initial area, the data area and the destination area. The arrows in each region are used to show the direction of data records. Each of the backup areas: internal ISA0" and external "OSA0" contains the replacement area "R/A" for recording replacement data, which is located in the defective area (if found) in the user data area.

In the exemplary embodiment of the present izobreteny is, shown in Figure 5, time zone management defects "TDMA I provided in the initial part of a data region, for example in the internal backup area ISA0". The second time zone defect management "TDMA 2" is provided in the external backup area OSA0". As a result, several time zones management defects ("TDMA 1" and "2 TDMA") separately formed in predetermined reserve areas ("ISA0", "OSA0") of a BD-WO in accordance with one example implementation of the present invention. The first temporary management area defects "TDMA 1" is formed in the inner back region, and the second time zone defect management "TDMA 2" is formed in the outer back area. That is, each of the time zones management defects are formed separately in the specified area of the disc is BD-WO". In this example, the specified areas are the inner and outer annular area. More specifically, in the exemplary embodiment of the present invention, is shown in Figure 5, the inner ring region provided in the initial part of the data region and the outer annular region of the end section of the data area.

In accordance with this embodiment, the size of the temporary zone management defects (for example, zone 2 TDMA"), created in the outer region of the disc is BD-WO", may be fixed or variable in zavisimost and from the size of the external backup area OSA0". Similarly, the size of the time zone defect management "TDMA 1" may be fixed or, if required variables. However, it is preferable that the time zone defect management "TDMA 1" in the initial area had a fixed size, and time zone management defects "TDMA 2" external backup "area OSA0" variable.

In accordance with the above example, when the detected defective area, the data to be write-in defective area is recorded in the replacement area "R/A", and information management defects associated with the defective area is recorded in one or more time zones defect management "TDMA 1" and "2 TDMA". Replacement area for recording defect information is available in one of the back fields.

Figure 6 shows another configuration of the recording area of the disc is BD-WO in accordance with the present invention. Shown in Fig.6 drive "BD-WO" has two recording layers ("Layer 0" - Layer 0) (Layer 1 - Layer 1). The first layer "Layer 0" includes the initial region, the data region 50A and the external area External area 0". The second layer "Layer 1" includes the target region, the data region 50b and the external area External area 1". In each layer created several areas of data management ("DMA 1" - "DMA 4"). Each of the data regions 50A and 50b contains at least one backup area. The arrows in each area showing the but the direction of the data record.

In this embodiment, at the start or end region of each layer creates a temporary area management defects ("TDMA 1" or "TDMA 3"). In relevant areas 50A and 50b of each layer are internal backup area ("ISA0", "ISA1") and external backup region (OSA0", "OSAI"). In each layer in an external backup area ("OSA0" or "OSA1") generates a corresponding time zone management defects ("TDMA 2 or 4 TDMA"). In this example, the internal backup area ISA0 and ISA1" can totally be used as a substitute zone "R/A". Each of the external backup area OSA0 and OSA1 may include the replacement area "R/A".

An example implementation can in General terms be described as a disk with multiple separate time zones management defects ("TDMA 1", "TDMA 3", "TDMA 2", "4 TDMA"), each of which is formed in a specific area of the disk BD-WO". The first pair of time zones management defects ("TDMA 1", "TDMA 3") is formed in the start and end fields, and the second pair of time zones management defects ("TDMA 2", "4 TDMA") in the outer back areas "OSA0 and OSA1". This embodiment can also be described as multiple time zones management defects, separately formed in respective predetermined areas (in each layer) in the inner and outer annular regions of double-layer drive "BD-WO". Namely, NR the inner annular region is created in the start and end fields, and the outer annular region is the final part of the corresponding data region.

The dimensions of time zones management defects "2 TDMA and TDMA 4 formed in the outer annular region of the disc is BD-WO", can be either fixed or variable depending on the size of the corresponding backup area. For example, if the size of one of the outer annular zones (external backup area OSA0", "OSA1") is N×256 clusters, the size of any of the time zones management defects "2 TDMA and TDMA 4" will be a variable - M×256 clusters, where M is an integer defined as N/4 (M=N/4). For example, if N=32, the dimensions of each (or one) of the external backup areas ("OSA0", "OSA1") will be 8192 clusters and the sizes of each (or any) time zones management defects "2 TDMA and TDMA 4" - 2048 clusters (TDMA 2=4 TDMA=8192/4 clusters). That is, M=N/4=8. Similarly, the size of the belt zone defect management "TDMA 1 and TDMA 3 may be fixed or variable. However, it is preferable that the time zone defect management "TDMA 1 and TDMA 3" at the start and end fields had a fixed size, and time zone management defects "2 TDMA and TDMA 4" in foreign reserve areas "OSA0 and OSA1" had variable size.

There are several reasons why the size of the time zones management defects ("TDMA 2" "4 TDMA"), formed in the outer annular region, which may vary in accordance with the size of the reserve areas ("OSA0", "OSA1"). One reason is that the size of the replacement area, the size of the temporary management area defects and the amount of the reserve areas are interdependent if the replacement area is formed in the backup area as an alternative to the time zone defect management. For comparison, the dimensions of time zones management defects ("TDMA 1", "TDMA 3")formed in the inner annular region (start and end of field), preferably should be fixed.

In the example shown in Fig.6, time zone management defects ("TDMA 1", "TDMA 3"), formed in the initial and final fields can be used in accordance with the use time zones management defects ("TDMA 2", "4 TDMA"). For example, if the temporary zone management defects ("TDMA 2", "4 TDMA"), formed in the outer back areas ("OSA0", "OSA1"), are not used to manage defective areas, reserve areas ("ISA0", "OSA0") can be allocated with a size "0". As a result, the size of the time zone defect management "TDMA 2" becomes equal to "0"when all the data region is used to record user data. Nonetheless, time zone management defects ("TDMA 1", "TDMA 3") in the initial region may still be available, as may be available and control functions and descriptions of specific information. In this case, m which can not be managed list of defects (DFL). More details on this issue will be discussed below with reference to Figure 10 and 11.

Upon detection of the defective area data to be write-in defective area of the user data area, is recorded in the replacement area "R/A", and information about the management of defects associated with this defective area is recorded in one or more time zones management defects ("TDMA 1", "TDMA 2", "TDMA 3", "4 TDMA"), formed in predetermined areas of the drive "BD-WO". In the example shown in Fig.6, the replacement area is formed as part of one of the back fields.

7 shows an example configuration of a recording area of the disc is BD-WO in accordance with another embodiment of the present invention. This example is identical to example shown in Fig.6, except that the time zone management defects formed in the inner and outer regions of each layer ("Layer 0" and "Layer 1"). That is, the example shown in Fig.7 corresponds to the two-layer disk with the configuration of the recording area corresponding to a single-layer disk shown in Figure 5.

More specifically, figure 7 shows the double-layer disc BD-WO", with the initial region, the end region, a data region 50A and 50b and the outer region (Outer region 0", "External region 1). The arrows in the respective fields shown the direction of the data record.

Per the s time zones management defects ("TDMA 1", "TDMA 3") in accordance with this embodiment of the invention are formed in each recording layer in the initial part of the corresponding data region 50A, 50b. That is, these areas are formed in the internal reserve areas "ISA0 and ISA1" data regions. The second time zone management defects ("TDMA 2", "4 TDMA) is formed in each recording layer on the target area corresponding data region. That is, these areas are formed in the outer back areas ("OSA0", "OSA1") data regions 50A and 50b.

Thus, the exemplary embodiment of the present invention, shown in Fig.7, contains multiple time zones management 30 defects ("TDMA 1", "TDMA 3", "TDMA 2", "4 TDMA"), each of time zones management defects formed during the initial part of the data area (internal backup area) and the final part of the field data (external backup).

The dimensions of time zones management defects ("TDMA 2", "4 TDMA"), formed in the outer annular region of the disc is BD-WO", can be either fixed or variable depending on the size of the external backup area OSA0". In accordance with this exemplary embodiment of the present invention, if during recording data on the disc is BD-WO" is detected defective area, the data to be write-in defective area is recorded in the replacement area "R/A", and information management defects is, associated with this defective area is recorded in one or more time zones management defects ("TDMA 1", "TDMA 2", "TDMA 3", "4 TDMA"), formed in predetermined areas of the drive "BD-WO". The dimensions of time zones defect management "TDMA 1 and TDMA 3 are fixed, and the size of time zones management defects "2 TDMA and TDMA 4" - variables.

In accordance with another embodiment, a method of recording information management defects when recording includes the following steps: creating the final zone defect management and time zone defect management; alternatively, the information recording defect management in the backup area instead of the time zone defect management; information recording defect management across time zones management defects, separately formed in respective predetermined areas of the drive "BD-WO", and the information recording defect management in the final zone management defects after temporal zone management defects will be fully used.

In accordance with the configuration of the drive "BD-WO", given as an example in figure 4, there are formed multiple time zones management defects ("TDMA 1", "2 TDMA"), and zone management defects ("DMA 1 and DMA 2", "DMA 3 or DMA 4")generated in the destination area are closing the areas of defect management. If during the recording of data is detected defective area, the data are copied to the data area, is recorded in the replacement area formed in the back region, and the corresponding information of the defect management is recorded in the temporary management area defects. After the time zone defect management) will be fully utilized, resulting in not remain available time zones defect management for recording information management defects, "last" or "latest" information defect management is recorded in the final zone management defects ("DMA 1" - "DMA 4").

On Fig shows how to use time zones management ("TDMA 1" - "4 TDMA") on a single-layer or double-layer drive "BD-WO in accordance with one example implementation of the present invention. In accordance with this method in the temporary management area defects "TDMA 1" is stored temporal structure of the disk definition "TDDS" and the temporary list of defects "TDFL". However, although it is not shown in the drawing, time zone management defects "TDMA 2 also contains a temporary structure definition disc "TDDS" and the temporary list of defects "TDFL". As shown in Fig, specific information management defects (the temporal structure of the disk definition "TDDS" and the temporary list of defects "TDFL") is written in the temporal zone defect management "TDMA 1" before as it is written in the temporary management area defects "TDMA 2". Although shown only the time zone defect management "TDMA 1" and "2 TDMA", this method applies to all time zones management defects ("TDMA 1" - "4 TDMA").

Below is a description of the temporal structure of the disk definition "TDDS" and the temporary list of defects "TDFL". In the present invention "TDDS" means a temporary structure definition disc. This information differs from the structure of the disk definition "DDS", because it is temporarily used structure. Similarly, "TDFL" means a temporary list of defects, which is in contrast to the list of defects "DFL" is a temporary structure. Here is a temporary list of defects "TDFL and the temporal structure of the disk definition "TDDS" included in multiple time zones defect management.

Temporary list of defects "TDFL" includes (in particular) a list of the clusters that are identified as defective during use of the recording media. In respect of such temporary structure definition disc "TDDS" specifies the format and status of the disk in relation to the management of defective areas and, in General, gives General information management. The disc format may include information about a specific location on the disk areas for defect management, and disk status may include various flags (explained below). the belt is a list of defects "TDFL includes the addresses of the defective areas and replacement areas. The temporal structure of the disk definition "TDDS" and the temporary list of defects "TDFL", recorded in the temporary management areas defects (for example, in areas TDMA 1" and "2 TDMA"), become a permanent information (structure definition disc "DDS" and the list of defects "DFL"), which is recorded in the permanent zone management defects (e.g., "DMA I" - "DMA 4"). For example, when the disk is executed completely, or when the control defects can no longer continue, the most recent temporal structure of the disk definition "TDDS" and the temporary list of defects "TDFL"stored in the temporary management areas defects "TDMA"is transferred and recorded at least in one of the zones of control defects "DMA" in the quality information structure definition disc "DDS" and the list of defects "DFL", respectively. During a write operation, data in the user data area and temporal structure of the disk definition "TDDS" and the temporary list of defects "TDFL" is updated periodically or at the same time, and the updated data is written in the temporary management area defects "TDMA". Specific modes of this process will become clearer in the course of further discussion.

In the example implementation shown in Fig, time zone management defects "TDMA 1" is used first (before involved time zone defect management "TDMA 2)to note the t information management defects, such as the temporal structure of the disk definition "TDDS" and the temporary list of defects "TDFL". When the time zone defect management "TDMA 1" filled, for recording information of the defect management uses the time zone defect management "TDMA 2". However, in another embodiment, the time zone defect management "2 TDMA is used first (before using the time zone defect management "TDMA 1"). In this case, when the time zone defect management "TDMA 2" filled, for recording information of the defect management uses the time zone defect management "TDMA 1". In this case, the information stating which among multiple time zones defect management "TDMA" filled specified "Flag fill" time zone defect management "TDMA". The notification using the "flag fill a need, as considered here, the preferred embodiments require information indicating which of multiple time zones defect management "TDMA" is full. In one example, this flag fill time zone defect management "TDMA 1" may be included in a temporary structure definition disc "TDDS".

In accordance with this example implementation, shown in Fig, time zone management defects "TDMA 1" and "2 TDMA or TDMA 2 and TDMA 1" are used consistently for the wounds of information management defects. In the following examples, the implementation of time zones defect management "TDMA 1" and "2 TDMA" are initial and final areas of the drive "BD-WO". Use a specific time zone defect management "TDMA" depends on various factors, examples of which will be given when discussing how to use multiple time zones defect management "TDMA".

It should be noted that the method shown in Fig, and any other methods discussed in this description (see Fig.9-13), applicable to the structures of the disks 4, 5, 6 and 7 and any other variations discussed below. It should also be noted that the present invention encompasses embodiments that include one or more time zones defect management "TDMA" in each recording layer of the disc is BD-WO".

On Fig and 9 shows only the time zone defect management "TDMA 1" and "2 TDMA". These zones are shown only as an example, and you can submit any other time zone defect management "TDMA"allocated on disk BD-WO" (for example, time zone management defects "TDMA 1 and TDMA 3"; "2 TDMA and TDMA 4"; "TDMA 3" and "6 TDMA" and so on).

Figure 9 shows another example of how multiple time zones management defects ("TDMA 1" - "4 TDMA") on a single-layer or double-layer drive "BD-WO in accordance with one example of domestic the present invention. However, the example shown in Fig.9, the same as the example shown in Fig will be clearer after the discussion of the example of the "flag fill" time zone defect management "TDMA"shown in Fig, and the corresponding structure shown in Fig.

On Fig shows an example of a configuration of the information recording defect management in accordance with the present invention. In this example "flag fill TDMA"indicating full or no time zone defect management "TDMA". This "flag fill" is written to a temporary structure definition disc "TDDS". As indicated above, the temporal structure of the disk definition "TDDS" contains General information management. For managing a defective area in accordance with the present invention are used "flag fill TDMA and such signs as "the size of the TDMA 1" (′TDMA 1 size′), "the size of the TDMA 2" (′TDMA 2 size′), etc. on the other hand, the flag fill and dimensions may not be required for each situation. In particular, the flag of fill provides information about completed or not a particular area, and can be a 1-bit index corresponding to a particular zone. In the example implementation, if a particular zone is the time zone defect management "TDMA" patterns, and the bit value of the corresponding flag fill equal to "1", with testuya area (for example, time zone defect management "TDMA 1) is treated as completed or in the state "completed". Accordingly, the specific time zone control 10 defects "TDMA" can no longer be used because it is filled.

On Fig shows an example of 8-bit flag fill time zone defect management "TDMA"indicating, filled or not one or more time zones management defects ("TDMA 1" - "4 TDMA"). The structure shown in Fig included in the field of temporary definition structure disk "TDDS"shown in Fig. As shown in Fig, when recording the temporary definition structure disk "TDDS" and the temporary list of defects "TDFL" the size of the temporary definition structure disk "TDDS" is fixed, for example, 1 cluster, and the size of the temporary list of defects "TDFL is variable. The size of the temporary list of defects "TDFL" double drive "BD-WO, as shown in Fig.6 and 7, can be changed from 1 to 8 clusters. This size is determined based on the capacity of the disk and the size of the backup area.

In accordance with the method of multiple time zones management defects, if the defective area is generated or detected when data is written to disk BD-WO, the data is recorded or copied in a defective area of the disc is BD-WO", written in a pre-selected replacement zone (EmOC is emer, in the backup area) on the disc is BD-WO". A more detailed discussion Fig will be presented further in the text.

Now consider Figure 9. As mentioned above, figure 9 shows one example of a way to use the time zone defect management in accordance with the present invention. In presented on Fig.9 method of using a temporary or permanent area of the temporary defect management area, the defect management "TDMA 1" and "2 TDMA" are used arbitrarily, without specifying any use. Flags fill time zones defect management "TDMA"discussed with reference to Fig and 13, are applied equally.

If "flag fill TDMA" indicates that specific time zone defect management "TDMA" filled for the cases shown in Fig and 9, the following or another time zone defect management "TDMA" is used to save the information of the defect management. In rare cases, such as the case shown in Fig.9, the ordering of the fields is not specified. However, if all time zones defect management "TDMA" is full, further managing defective areas on the disk BD-WO" becomes impossible. If further defect management areas cannot complete, final, or the latest information of the temporary definition structure drive the TDDS and the temporary list of defects "TDFL" is transferred from the temporary management area defects "TDMA" and is recorded in at least one of the zones management defects ("DMA 1" ˜ "DMA 4") to display the current disk status. A more detailed discussion of the final logging information in the area of the defect management "DMA" will be presented below.

In accordance with the embodiment shown in Fig.9, the data of the defective area is recorded in a predetermined replacement area. Information management defects, related to the defective area and the replacement area, arbitrarily written in the desired time zone defect management "TDMA". For example, on drive "BD-WO" to record such information defect management available time zone defect management, the nearest to the area in which there is a defective area. Therefore, as shown in Fig.9, time zone defect management can be used in different ways, or as needed.

In another method of use of temporary control zones of defects in accordance with the present invention more temporary management areas defects are used in different ways depending on various conditions.

As an example, assume that the area for defect management include time zone defect management "TDMA 1" and "2 TDMA" in accordance with the embodiments presented on Figure 5-7. When using drive "BD-WO" information management defects may be the recording is only a temporary management area defects "TDMA 2". The latest information of the defect management is then written to a temporary management area defects "TDMA 1" when removing a drive "BD-WO". In other words, select the zone that you want to record information management defects, is defined between the area for recording information of the defect management using disk and an area for recording information management defects when removing the disk.

In accordance with another embodiment of the present invention proposes a method of using time zone defect management when writing data to disc BD-WO, the data is written (or copied) in the defective area is recorded in a predetermined replacement area if the defective area is generated or detected while recording data. Information defect management is recorded in the temporary management area defects "TDMA 2" during use of the disk. The same information management defects newly recorded in the temporary management area defects "TDMA 1" when the disc is ejected.

As another way of disk usage, there are different approaches for selecting one of the many areas of defect management. One way to use disk based on the degree of importance. For example, when the importance of updating information management defects is low, time zone, the Board defects "TDMA 2" can be used to record the information of the defect management. When the importance of updating information of the defect management is high, for recording information of the defect management can be used time zone defect management "TDMA 1" (instead of the time zone defect management "2 TDMA"). Here the criterion used to determine 5-importance, can be defined in different ways. The frequency of updating (overwrite) information management defects can be made due to or based on the choice of the developer. The recovery disk can also be set as an important time when writing defect management. In this case, the time during which the disk is used, is considered as less important, so at this time, information management defects can be recorded in the temporary management area defects "TDMA 2" (instead of the time zone defect management "TDMA 1"). The recovery disk can be considered as more important, so at this time, information management defects can be recorded in the temporary management area defects "TDMA 1" (instead of "zone 2 TDMA"). Using time zone defect management "TDMA 1" (or "zone TDMA 3) is more preferable than using the time zone defect management "TDMA 2" (or "zone 4 TDMA"), because the access time zone defect management "TDMA 1 and TDMA 3" may be faster is more convenient when loading the disk, since these regions are located in the start and end fields, and not in the areas of data entry. The ways that the developer decides to use, applied differentially.

One of the criteria used to determine the degree of importance, is the update interval. In other words, if the length of time between the previous time information updates the defect management and the current time information update management defects is large, then the current information updates is considered as relatively important. In this case, information management defects can be recorded in the temporary management area "TDMA 1", even when the drive is used. Another criterion of importance is the number of created or found defective areas. If there are relatively many of the affected areas, as it is considered that requires greater reliability, information management defects can be recorded in the temporary management area defects "TDMA 1", even if the disk is used.

In accordance with the intended use, if the information of the defect management is recorded in the temporary management area defects "TDMA" in accordance with the criterion of importance, since the time zone defect management "TDMA 1" is located on the inside track of important information can be rapidly is ro and accurately obtained, since the initial load time 10 disk.

Figure 10 and 11 shows two different examples of the method for forming the temporal information of the defect management in accordance with the present invention. In one embodiment, the present invention provides a method for forming and recording information management defects in the temporary management area defects "TDMA", where the temporal structure of the disk definition "TDDS" and the temporary list of defects "TDFL" separated from each other. In another embodiment, the present invention provides a method for forming and recording information management defects in the temporary management area defects "TDMA", where the temporal structure of the disk definition "TDDS" and the temporary list of defects "TDFL United. Figure 10 shows the first case (separated), and figure 11, the second case (United). Here every time information of the defect management is updated in the temporary management area defects "TDMA" is the latest information about the temporary list of defects "TDFL and temporary structure determine disk "TDDS".

More specifically, figure 10 shows the formation method and information recording defect management in a temporary management area defects "TDMA", where the temporal structure of the disk definition "TDDS" and the temporary list of defects "TDFL" separated from each other the while. Each temporary structure definition disc "TDDS" has a fixed size, such as 1 cluster, and the size of each temporary list of defects "TDFL is variable, for example from 1 cluster to 8 clusters.

Figure 11 shows the formation method and information recording defect management in a temporary management area defects "TDMA", where the temporal structure of the disk definition "TDDS" and the temporary list of defects "TDFL United. Information defect management is recorded in the message form "TDFL+TDDS, as shown figure 11. Because the size of the temporary list of defects "TDFL" can vary from 1 to 8 clusters, as indicated above, the size of the message "TDFL+TDDS" is a variable from 1 cluster to 8 clusters.

Again refer to Fig. The size of each time zone management defects ("TDMA 1" - "4 TDMA") specified in the temporary definition structure disk "TDDS" together with the flag of filling time zone defect management "TDMA". In accordance with the configuration shown in Figure 4 and Figure 5, the information identifying only the dimensions of time zones defect management "TDMA 1" and "2 TDMA"is contained in the temporary definition structure disk "TDDS". In accordance with the configuration shown in Fig.6 and 7, it is possible to reliably record information that identifies the dimensions of time zones defect management "TDMA 1", "TDMA 2", "TDMA 3" and "4 TDMA", a temporary structure the distribution disk "TDDS". This means that the information of the defect management is recorded in multiple time zones management defects created in a predetermined area of the disc BD-WO in accordance with the present invention. Therefore, the number and types of information and bits, as well as a way of describing the size of the time zone defect management "TDMA" is not limited to the example shown in Fig.

Again refer to Fig, shows an 8-bit structure is an example of the flag fill time zone defect management. One bit flag filling zone "TDMA" is allocated to each time zone defect management "TDMA", such as "TDMA 1" "TDMA 4", as shown in Fig. For example, the flag of the filling zone "TDMA"value "00000011", indicates that the time zone defect management "TDMA 1" and "2 TDMA" is full. In the description of the flag of the filling zone "TDMA" the size and distribution of bits is not limited to the configuration shown in Fig.

As shown in Fig, in this example, each time zone defect management "TDMA" from "TDMA 1" to "TDMA 4" corresponds to each bit from "b1" to "b3" flag filling zone "TDMA". The bits of the flag of the fill zones "TDMA 3" and "4 TDMA" is not necessarily determined in accordance with the disk configuration shown in Figure 4 and Figure 5. The bits of the flag of the fill zones "TDMA 3" and "4 TDMA can be determined in accordance with the configuration is the situation of a double-layer drive, shown in Fig.6 and 7. From a logical point of view, a two-disc BD-WO" time zone defect management "2 TDMA and TDMA 4" can be used as a unified time zone defect management. Similarly, as a unified time zone defect management can be used time zones defect management "TDMA 1 and TDMA 3". Therefore, the method of determining flag filling may be such that one flag field (or bit) is determined for zones "TDMA 1 + TDMA 3", and the other flag field (or bit) - zone "TDMA 2 + 4 TDMA".

Thus, when the information of the defect management is recorded in multiple time zones management defects, the system can determine whether available or not part of the record.

Industrial application of inventions

The present invention provides methods of defect management, when a defective area is detected while recording data on the disc is BD-WO". More specifically, recording, playback and management of the defective area using the information of the defect management are implemented on the drive "BD-WO" through alternative recording information to be written in the defective area into a replacement area on the disk BD-WO", and by recording information management defects in multiple time zones management defects, provided separately in C is pre-defined areas on the disk.

Specialists in the art will understand that the present invention can be made of various modifications and changes. Thus, it is understood that the present invention covers the modifications and changes of the present invention provided that they are within the scope of the following claims and their equivalents.

1. Method for managing defects on an optical write-once media, having at least one recording layer, comprising the following steps:

the selection on the optical recording medium, at least one replacement area and multiple time zones management defects, with the specified time zone defect management create separately;

recording information management defects, at least one of the time zones defect management.

2. The control method according to claim 1, in which the step of allocating at least one of the multiple time zones management defects emit in the inner annular region of the optical recording medium and at least one of the multiple time zones management defects emit in the outer annular area of the optical recording media.

3. The control method according to claim 1, in which the step of allocating one of several time zones management create defects in the initial area of the optical recording medium and one of several time zones management defects create the final part of the data area of the optical recording media.

4. The control method according to claim 1, in which the step of allocating one of several time zones management create defects in the initial area in the data area, and one of several time zones management defects create the final part of the specified data area of the optical recording media.

5. The control method according to claim 1, in which the step of allocating further includes

allocating at least one internal backup region, at least part of which is used as a replacement area to replace a defective area;

allocating at least one external backup region, at least part of which is used as a replacement area to replace a defective area, and

allocating at least part of the at least one external backup region and at least one internal backup area as time zone defect management to manage the information of the defect management.

6. The control method according to claim 5, in which the step of allocating at least one internal backup region include first internal reserved area, all of the allocated area which is used to replace the defective area.

7. The control method according to claim 5, in which the step of allocating at least one internal backup region include first vnutrednevnuju region, selected in the initial part of a data region, and at least one external backup region include the first external backup area outlined on the target area of the data area.

8. The control method according to claim 1, in which at least the first time zones defect management has a fixed size, while the second time zone defect management has a variable size.

9. The control method of claim 8 in which the step of allocating the first time zones management defects isolated in the initial region, and the second time zones defect management allocate external backup area.

10. The control method of claim 8 in which the step of selecting the first and second time zones management defects correspondingly in the inner back of the field and external backup area of the optical recording media.

11. The control method according to claim 1, in which the step of allocating the optical recording medium has at least two recording layers, the first of which include time zone management defects, having a fixed size, and time zone management defects, having a variable size, and the second recording layer include time zone management defects, having a fixed size, and at least one temporary management area defects, imoudu the variable size.

12. The control method according to claim 11, in which time zones management defects, having a fixed size, isolated in the initial region, respectively, the first and second recording layers, and time zone management defects, having a variable size, have external backup area, respectively, the first and second recording layers.

13. The control method according to claim 11, in which time zones management defects, having a fixed size, allocate internal backup area, respectively, the first and second recording layers, and time zone management defects, having a variable size, allocate external backup area, respectively, the first and second recording layers.

14. The control method according to item 12, in which the step of selecting the first recording layer includes a first internal backup area, the entire area which is used for replacing the defective area, and external backup area having a variable size, and the second recording layer includes a second internal reserved area and an external back-up area.

15. The control method according to claim 1, in which the optical recording medium is a disk Blu-ray write-once (disc format BD-WO").

16. The control method according to claim 1, in which the step of recording in the information management defects VK is ucaut, at least one temporary list of defects ("TDFL) and at least one temporal structure definition disc ("TDDS").

17. The control method of claim 8, in which the first and second temporary management area defects are used sequentially one after another.

18. The control method of claim 8, in which the first and second time zone defect management using arbitrarily without the benefits of one area relative to another.

19. The control method according to clause 16, in which at least one temporary list of defects and at least one structure defining a drive separate.

20. The control method according to clause 16, in which at least one temporary list of defects and at least one structure defining a drive joint.

21. The control method according to clause 16, in which information stating what time zone defect management among time zones defect management is full, indicated by the flag fill.

22. The control method according to clause 16, in which the size of each of the temporary management areas of defects recorded in a temporary structure definition disc ("TDDS").

23. The control device defects on the optical write-once media, having at least one recording layer containing means for selecting at least one replacement area, and several time zones of control on the defects on an optical recording medium, where time zones management defects are created separately; means for recording information management defects, at least one of the multiple time zones defect management.

24. The optical write-once media containing the data area containing at least one replacement area; multiple time zones management defects, allocated on the recording medium, where the time zone management defects are created separately, and the information of the defect management is recorded, at least one of the time zones defect management.

25. The optical recording media according to paragraph 24, where at least one temporary management area defects highlighted in the inner annular region of the optical recording medium and at least one temporary management area defects highlighted in the outer annular area of the optical recording media.

26. The optical recording media according to paragraph 24, further comprising the initial region, and one of several time zones management defects created in the initial field of optical recording media, and one of several time zones management defects created in the final stretch of the specified data area of the optical recording media.

27. The optical recording media according to paragraph 24, where one of several time zones management defects created ininitial plot the data area of the optical recording medium, and one of the temporary management areas defects created on the target area of the specified data area of the optical recording media.

28. The optical recording media according to paragraph 24, additionally comprising at least one internal backup area in the data area, at least part of which is used as a replacement area for replacing the defective zone and at least one external backup area in the data area, part of which is used as a replacement area for replacing the defective area, and the portion of the at least one external backup region and at least one internal backup region is used as the time zone information management information management defect management.

29. The optical recording media according p, where at least one internal backup area includes a first internal backup area, the entire area which is used to replace the defective area.

30. The optical recording media according p, where at least one internal backup area includes a first internal reserved area allocated for the initial part of the data region, and at least one external backup area includes the first external backup area outlined on the target area of the data area.

31. Optical media according to paragraph 24, where PE is the first time zone defect management has a fixed size, and the second time zones defect management has a variable size.

32. The optical write-once media for p additionally includes the initial region; external backup area in the data area, and the first time control is selected in the initial region, and the second time zone control is selected in the external reserve zone.

33. The optical recording media according p additionally includes internal reserved area and external backup region, both in the data area, and the first and second time zones management defects allocated respectively in the inner back of the field and external backup area of the optical recording media.

34. The optical recording media according to paragraph 24, where the optical recording medium has at least two recording layers, in which the first recording layer includes time zone management defects, having a fixed size, and time zone management defects, having a variable size, and the second recording layer includes time zone management defects, having a fixed size, and at least one temporary management area defects having a variable size.

35. The optical recording medium according to clause 34, where time zones management defects, having a fixed size, are located in the social areas of the first and second recording layers, respectively, and time zone management defects, having a variable size, are located in the outer regions of the first and second recording layers, respectively.

36. The optical recording medium according to clause 34, where time zones management defects, having a fixed size, are located in the internal reserve areas of the first and second recording layers, respectively, and time zone management defects, having a variable size, are located in the outer back areas of the first and second recording layers, respectively.

37. The optical recording media according p, where the first recording layer includes a first internal backup area, the entire area which is fully used to replace the defective area, and external backup area having a variable size, and the second recording layer includes a second internal reserved area and an external back-up area.

38. The optical recording media according to paragraph 24, where the optical recording medium is a disk Blu-ray write-once BD-WO".

39. The optical recording media according to paragraph 24, where the information of the defect management includes at least one temporary list of defects ("TDFL) and at least one temporal structure definition disc ("TDDS").

40. The optical recording media according to § 39, where the at least one temporary list Def the mswb and at least one structure defining a drive separate.

41. The optical recording media according to § 39, where the at least one temporary list of defects and at least one structure defining a drive joint.

42. The optical recording media according to § 39, where the size of each time zone defect management is recorded in the temporary definition structure of the disk ("TDDS").



 

Same patents:

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EFFECT: simplification of control of data allocation on recording medium.

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16 cl, 11 dwg

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FIELD: physics, measurement.

SUBSTANCE: during writing data to a medium, when a certain data communication rate is required, the allocation control means located in the writing/reading device should allocate logical space sections so as to provide efficient filling of the said recording medium and to guarantee an adequate data communication rate even if faulty ECC blocks are present. The information allocation rules used by the allocation control means are complicated. These rules may be simplified by decreasing the value of the lower extent size limit and by increasing the extent size depending on the quantity of faulty ECC blocks contained in that extent.

EFFECT: simplification of control of data allocation on recording medium.

26 cl, 9 dwg

FIELD: invention is related to a device and a method for information recording and reproducing.

SUBSTANCE: ECC block is created using the RS (248, 216, 33). Of the data having a length of 216 bytes (symbols), only 16 bytes are dedicated to the BCA data, and the remaining 200 bytes are used for the fixed data having a predetermined value. Using the fixed data having 200 bytes and the BCA data having 16 bytes, parities having 32 bytes (symbols) are calculated. Only the BCA data of 16 bytes and the parities of the previous 16 bytes of the parities of 32 bytes, that is, a total of 32 bytes (symbols), are recorded to the recording areas with partitioning of the optical disc into packages. The fixed data of 200 bytes are used in decoding with error correction. The unrecorded parities of 16 bytes are processed as having been erased.

EFFECT: capability to enhance the error correction characteristics in the recording area with partitioning of the optical disc into packages.

21 cl, 19 dwg

FIELD: information carriers.

SUBSTANCE: invention describes a device, information carrier (11) and method for recording information onto a track (9) of information carrier (11). Information carrier (11) contains information area of disk with information about information carrier (11), for example, such as strategy for recording information carrier (11). Device has means (35) for reading disk information for reading information area of the disk. Information area of the disk additionally contains extended information block. An extended information block has block version number and additional parameters. The block version number determines how to interpret additional parameters. In the same way, a more flexible system with reverse compatibility is realized. Disk drives, which are capable of interpretation of additional parameters of extended information block, may choose to use additional parameters in that block.

EFFECT: increased efficiency.

3 cl, 24 dwg

FIELD: optical data carriers.

SUBSTANCE: for protecting optical disk from recording, information concerning protection from recording is read, which is previously recorded in at least one zone of starting or ending area of data carrier, and it is determined, whether the latter is in state of recording protection. In variant, when carrier is placed in cassette body, and body has aperture for forbidding recording protection of data on disk, it is determined, if recording protection state of recording protection data written on disk is matches with state of recording protection of said aperture, and recording of new data is prevented, if said protection data and aperture position forbid recording. In a variant information concerning recording protection is stored in zones of disk identification of at least one of zones of starting and ending area of carrier.

EFFECT: higher efficiency.

5 cl, 16 dwg

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