Method and device for controlling defects in record carriers and record carrier with defect control, produced with usage of aforementioned method

FIELD: methods and devices for controlling defects of a record carrier, and record carriers with defect control.

SUBSTANCE: record carrier includes a reserve area, wherein replacement area is formed, which serves as replacement for defective area of record carrier, and defect control area, wherein defect information is recorded, which sets the defective area and corresponding replacement area, where into replacement area position information and status information, related to defective area, are recorded. Appropriately, a capability is provided for restoration of defect information, even if control of record carrier defects on a record carrier was terminated abnormally.

EFFECT: increased efficiency.

5 cl, 10 dwg

 

The technical field to which the invention relates.

The present invention relates to the control of the defects of the recording media and, in particular, to a method, device and computer-readable media for monitoring defects of the recording medium, even when the control of defects in the recording media aborted, and the recording medium with control defects obtained using these method, device and computer-readable media.

Prior art

Inspection includes the process of rewriting the data stored in the defective area of the user data recording media, in a new section of the user data area, compensating, thus, loss of data, loss caused by a defective area. In General, control of defects is carried out using linear replacement or moving of substitution. In a linear substitution data stored in the defective area of the user data recorded in the backup data area having no defects. When sliding the replacement of a defective area in the user data area is skipped and the next available area of the user data area that is free of defects.

However, linear substitution and moving the substitution applies only to such recording media as drives f is rmat DVD-RAM/RW drive, where you can re-write the data, and the recording can be done using the method of random access. Linear substitution and moving the substitution difficult to implement in media accounts of a single account, where the account is allowed only once. In General, the presence of defects on the recording medium detected by the recording data on the recording medium with the subsequent confirmation of the fact that you have recorded data on the recording medium. However, when recording data on the recording medium a single account, you cannot subsequently be overwritten with new data, and control defects on the recording medium can be written only once.

Other methods, devices, and computer-readable media for monitoring defects in the recording media can be written only once, where the recorded data cannot be erased or overwritten, include methods, devices and media, potentially including the use of reproducing and/or recording drive for recording media to create media write-once recording control defects.

However, the inspection carried out by reproducing and/or recording drive for recording media, emergency can be interrupted due to unavoidable events, for example, power supplied to the reproducing and/or recording the second drive for the recording medium, because of a power outage. Why were developed and described here, the device, method and computer-readable media for generating the result of the recording medium with control defects that do not depend on such interrupts.

The invention

The present invention provides a method, device and computer-readable media for monitoring defects on the recording medium, in which the inspection was aborted due to, at least, unavoidable events, such as power failure, and disk write-once control defects that implements compensation.

Additional aspects and/or advantages of the invention will be set forth below in the following part of the description and in part made it clear from the description, or may be identified in the practical use of the invention.

To implement the foregoing and/or other aspects and advantages, embodiments of the present invention provide a recording medium that includes a reserved area, keeping the area of the substitution, which is a replacement for the defective area of the recording medium, and the area of the temporary control of defects, which stores information temporarily control, identifying the defective region and the area of the substitution, and the position information and status information relating to the defective region is STI, recorded in the area of the substitution.

The position information and status information pertaining to the defective area can be encoded for error correction code (KIO, ECC) during KIO-coding of the data recorded in the area of the substitution. Alternative KIO-encoded data and the position information and status information recorded in the area of the substitution.

To implement the foregoing and/or other aspects and advantages, embodiments of the present invention provide a method of monitoring defects in the recording medium including a recording area of the substitution for a defective area of the recording medium in the backup area and the write data temporary control, identifying the defective area and the corresponding area of the substitution, in the area of temporary control of the defects of the recording medium, and position information and status information pertaining to the defective area is recorded in the area of the substitution.

The method may additionally include the write data temporary control, which is most recently recorded in the temporary control of defects in the region of the control defects (OKD, DMA) when finalizing the recording media. The most recently recorded data temporary control may enroll in OKD in at least one of the input area and output area novtel the record.

To implement the foregoing and/or other aspects and advantages, embodiments of the present invention provide a device comprising the module read/write recording data on the recording medium and/or from the recording medium, and a controller that controls writing of data to the area of the substitution, for the defective area of the recording medium, in a reserved area of the recording medium, the writer/reader for recording information temporary control, identifying the defective region and the area of the substitution, in section of the time control defects, and a control module read/write to record position information and state information pertaining to the defective area in the area of the substitution.

To implement the foregoing and/or other aspects and advantages, embodiments of the present invention provide a method of monitoring defects in recording media, comprising determining whether the control of defects in the recording media successfully completed reading the most recently recorded information of the defects from the area of the substitution of recording media, for the defective area of the recording medium, and creating new information defects, when it is determined that the control of defects in the recording media was not completed successfully, and the update information control defects in the control defects (OKD) n is sites account on the basis of the generated information of defects.

Determining whether the control of defects in the recording media is successfully completed, can be done by checking the compatibility flag on the recording media.

Generating new information defects may further include reading position information pertaining to the defective area, from the area of the substitution. Generating new information defects may additionally include generating new information of defects on the basis of previous information of defects and read information of defects.

To implement the foregoing and/or other aspects and advantages, embodiments of the present invention provide a method of monitoring defects in recording media, comprising determining whether the control of defects in the recording media previously successfully completed, the scanning area of the recording medium, presumably do not contain recorded data, which is identified in the backup bitmap (RBC, SBM), and checks whether or not this site does not contain recorded data, and updating RBC to accurately reflect the state of recording of the recording medium on the basis of test site the recording media.

Update RBC may further include recording the updated RBC as information of a temporary control area temporarily what about the control of defects on the recording media.

To implement the foregoing and/or other aspects and advantages, embodiments of the present invention provide a device comprising the module read/write recording data on the recording medium and/or from the recording medium, and a controller that determines whether the control of defects in the recording media previously successfully completed, the managing module read/write to record the most recently recorded information of the defects from the area of the substitution and generation of new information defects, when it is determined that the control of defects in the recording media has not previously been successfully completed, and a control module read/write to update the control defects (OKD) of the recording medium, on the basis of the generated information of defects.

To implement the foregoing and/or other aspects and advantages, embodiments of the present invention provide a device that includes a head that records data on a recording medium and/or from the recording medium, and a controller that controls the head for recording and/or reading data to determine whether the control of defects in the recording media previously successfully completed, and the scanning area of the recording medium, presumably do not contain recorded data, which is identified in the most recently recorded backing bitmap (the BC) on the recording medium, for checking whether the data recorded in the above section, when it is determined that the control of defects in the recording media has not previously been successfully completed, and updates RBC to accurately reflect the state of recording of the recording medium on the basis of test site the recording media.

The controller may control the writing of the updated RBC as information of a temporary control area temporary control of defects in the recording media.

To implement the foregoing and/or other aspects and advantages, embodiments of the present invention provide a machine-readable medium comprising machine-readable code to control the playback device and/or account for any of the above methods.

List of drawings

The above and/or other aspects and advantages of the present invention made it clear from the following description of embodiments, given in conjunction with the accompanying drawings, in which:

figa and 1B is a data structure of the recording medium for write-once area temporary control defects (AVCD TDMA) and area control defects according to the options exercise of playback and/or recording of the present invention;

figure 2 - block diagram of an apparatus for implementing control of defects in the recording media according to the VA is Ianto implementation of the present invention;

figure 3 - block diagram of the reproducing and/or recording drive for recording media, which includes the playback device and/or recording, as shown in figure 2, according to a variant implementation of the present invention;

4 is a format of the frame data to the recording media according to a variant implementation of the present invention;

5 is a reserved area in the recording medium, formed when the control of defects in the recording media aborted due to unavoidable events such as power outages;

figa-6C is a diagram explaining a method of restoring a backup bitmap (RBC), which is a type of information, time control, according to another variant implementation of the present invention; and

7 is a logical block diagram illustrating the control method of the defects in the recording media according to another variant implementation of the present invention.

Preferred embodiments of the inventions

Please refer to the detailed description of embodiments of the present invention, examples of which are illustrated in the attached drawings, provided end-to-end system of notation. Options for implementation are described below to explain the present invention with reference to the figures. Below, preferred embodiments of the crust is asego of the invention will be described with reference to the accompanying drawings.

On figa and 1 b shows the structure of the recording medium 100 according to the options of implementing the present invention.

On figa recording medium 100 having the recording layer L0, presented as a recording medium with a single recording layer. The recording medium 100 includes an introductory area, data area and lead the region. The introductory area is located in the inner part of the recording medium 100, and the outlet area is located in the outer part of the recording medium 100. The data region is located between the input area and output area. In this embodiment, the start and end of the data region are the same as for CD-rewritable (CD-RW), and the data area is logically divided into a reserved area, a user data area and a backup area, starting from the inner part of the recording medium 100. The user data area is an area where the recorded user data, and the backup area are used for compensation of losses in the space of the recording area of the user data due to defects. Since the recording medium 100 can be defects, the amount of reserve areas, it is preferable to allocate to the recording medium 100 is still possible to record a large amount of data. In this embodiment, the position of the reserve areas are not fixed. In at least one of the input area and vodnoy field is present, at least one of the control defects and the temporary control of defects.

On FIGU recording medium 100 having two recording layer L0 and L1, are presented as a recording medium with two recording layers. The introductory area, the data area and the outer area are sequentially formed from the inner side of the first recording layer L0 to the outer side of the first recording layer L0. Similarly, the outer area, a data area, and lead the region are sequentially formed from the outer part of the second recording layer L1 to the inner part of the second recording layer L1. Unlike the recording media with one record layer, shown in figa, leadout is located in the inner part of the recording medium 100 shown in figure 1 C. Thus, the recording medium 100 shown In figure 1, has the opposite course tracks (PCBs, NEG), where the data is written starting with an introductory area of the first recording layer L0 toward the outer region of the first recording layer, and further from the outer region of the second recording layer L1 to the lead region of the second recording layer L1. The reserve area is allocated to each of the recording layers L0 and L1.

In these embodiments, implementation of the backup area may be present between the opening region and the user data between the user data area and a lead region and between the region the user is fir data and external areas. If necessary, the area of the user data area can be used as another backup area, i.e. between the input region and output region may be more than one backup field.

Figure 2 shows the block diagram of the playback device and/or recording for monitoring defects in the recording media according to a variant implementation of the present invention. According to figure 2, the recording device includes module 1 write/read controller 2 and the memory 3. Module 1 read/write writes data on the recording medium 100 according to a variant implementation of the present invention, and reads data from the recording medium 100 to verify the recorded data.

The controller 2 performs control of defects in the recording media according to a variant implementation of the present invention. In this embodiment, the controller 2 uses the method of verification after recording in which data is recorded on the recording medium 100 in the form of predetermined data units, and then the recorded data is checked to detect possible defects in the area of the recording medium 100. In particular, the controller 2 writes the user data on the recording medium 100 in the form of predetermined units of data, checks the recorded user data for detection region of the recording medium 10, in which there is a defect, and replaces the detected defective area is the area of the substitution. Then, the controller 2 generates information that identifies the position of the defective area and the area of the substitution, and stores the generated information in the memory 3. If the amount of stored data reaches a predetermined level, the controller 2 writes the information stored in the temporary area of the control defects (OWCD) of the recording medium 100. The information recorded in OVCD, called information temporary control, in accordance with the information of the inspection recorded in the region of the control defects (OKD). Information temporary control contains the temporal information of defects, identifying the defective area and the corresponding area of the substitution, and the temporal information of the control defects for managing time information of the defects. In particular, in this embodiment, the time information of the control defects includes backup bit map (RBC), which provides information to identify available areas of inaccessible areas of the recording medium 100.

Information pertaining to the defective area is recorded in the area of the substitution, so that you can restore this information, when the information of the temporary control cannot be updated, for example, when napredovati the e event, for example, a power outage, even though the defective region was replaced by the area of the substitution. Information pertaining to the defective area, indicates the position and condition of the defective area. For example, the information originally intended for the defective cluster is recorded in the new cluster, i.e. the cluster of substitution, which is the replacement of the defective cluster. Information related to the defective cluster in the cluster substitution identifies the position and condition of the defective cluster. Defects in the recording media include faults caused when data is written, and the defects that occurred when checking the recorded data. The position information related to the defective cluster is address information. For example, if several consecutive non-physical sector (NSF, PSN) originally intended for the defective cluster, the first NSF defective cluster is recorded as position information. The size of the position is measured in bytes, so all the addresses of the recording medium 100 can be expressed as the position information. For example, the position information may be about 4 bytes. Status information related to the defective cluster, identifies equivalent to whether the user data recorded in the defective cluster, the user data recorded in the Klah is Ter substitution or identifies whether the defect is a complete defect or incomplete defect. Full defect represents the data that is completely damaged and cannot be repaired and, therefore, cannot be read, whereas a partial defect is data that has been fixed, but most likely, there will again be damaged. If the defect is a complete defect, the data recorded in the cluster of substitution may not be identical to the data recorded in the defective cluster. The fact that the data had to be recorded in the defective cluster, compared with the data that have actually been recorded in the defective cluster, may be recorded in the cluster of substitution, where the defect occurs during writing data, which gradually changes, for example video data.

When the user presses the eject button (not shown) of the playback device and/or write to eject the recording medium 100 after recording data, the controller 2 assumes that the write operation is complete. Then, the controller 2 reads the information of the defects of the memory 3, and outputs it to the module 1 read/write and controls module 1 read/write to record this information of defects on the recording medium 100. Information temporary control is updated for each write operation. Alternative information temporary counter the La can be updated whenever you finish recording, in a predetermined unit of account.

In addition, the controller 2 sets the compatibility flag when writing temporary control OVCD for information recovery time control, when the information of the temporary control is not updated due to unavoidable events, such as power-off, despite the fact that the defective region was replaced by the area of the substitution. Compatibility flag identifies the beginning of the update information of the temporary control. For example, in this case, the compatibility flag may be set equal to 1. When the recording medium 100, you should remove the drive for the recording media after recording data in predetermined units or after the write operation, the compatibility flag can be reset to 0, so it was a successful update information temporary control, when the final update time control.

At the beginning of the next unit recording or re-loading of the recording medium 100, the controller 2 checks the compatibility flag. If the compatibility flag is 1, the controller 2 determines that the write was aborted, and begins the data recovery time control and other additional information. Thus, the controller 2 reads the information related to the defective area of the most recently replaced the field info and updates the information of the temporary control and other additional information on the basis of the read information. A detailed description of this below.

When data recording is completed, i.e. when no additional data will be recorded on the recording medium 100 (recording medium 100 need to finalize), the controller 2 controls the module 1 read/write to record the most recently updated information temporary control of the control disk (DCD) of the recording medium 100.

Information pertaining to the defective area is also recorded in the area of the substitution, when the defect occurs when the reproduction of data. For example, the position information, for example, the first NSF defective cluster, and status information related to the defect also recorded in the cluster replacement.

Figure 3 shows a block diagram of a design of the drive for the recording medium, is included in the playback device and/or recording, as shown in figure 2. According to figure 3, the drive for the recording medium includes a head 10 and corresponds to the module 1 read/write, as shown in figure 2. The recording medium 100 is loaded into the cylinder 10. Similarly, the recording disk drive includes a controller 2, which has a computer interface 21, a digital signal processor (DSP, DSP) 22, a high-frequency (HF) amplifier 23, the servo system 24 and the system controller 25. The memory 3 shown in figure 2, may be included in the system controller 25 of the controller 2.

during a write operation, the computer interface 21 receives the data, copied, and a write command from the host device (not shown). The system controller 25 performs the initialization of the recording medium necessary for the write operation. DSP 22 performs encoding for error correction code (KIO) with respect to the data transmitted from the computer interface 21, by adding to the data, additional data, such as parity data, and modulates KIO-coded data in a predefined data format. RF amplifier 23 converts the data output from the DSP 22, the RF signal. Then head 10 performs recording on the recording medium 100, using the RF signal output from RF amplifier 23. Accordingly, the servo system 24 receives a command servo control from the system controller 25 and performs the servo control with respect to the head 10. The system controller 25 instructs the head 10 to read data from the recording medium 100 or record information, for example, time control, on the recording medium 100.

In particular, the system controller 25 writes data on the recording medium 100 at a predetermined number of clusters and checks the data recorded in the cluster. If the cluster is found to be defective, the position information related to the defective cluster, and status information related to the defect are stored in the memory 3. When data validation is aversana or the defect is not detected, the system controller 25 receives the user data from the memory 3 that stores the write command and user data transferred from the host device. User data indicate the position of the defective cluster. Then the system controller 25 implements the position information related to the defective cluster, and the state information related to the defect in the user data, and writes the user data in the cluster replacement.

During the operation of the playback computer interface 21 receives from the host device a command to read. The system controller 25 performs the initialization of the recording medium 100, required for a read operation. The head 10 outputs a laser beam on the recording medium 100, and receives and displays the reflected optical signal from the laser beam reflected from the recording medium 100. RF amplifier 23 converts the optical signal output from the extractor 10, the RF signal, produces an output, modulation of the RF signal on the DSP 22 and outputs zerosignal for steering, obtained from the RF signal to the servo system 24. DSPS 22 demodulates the modulated data, performs KIO-decoding the demodulated data and outputs the CRO-decoded data. The servo system 24 performs servo control in relation to the head 10 in accordance with zerosignal output of the RF stress the El 23, and command the servo output from the system controller 25. Then computer interface 21 transmits data received from the DSP 2, the master device. In addition, the system controller 25 may prescribe the head 10 reads control information of defects on the recording medium 100 during a read operation.

In particular, if during a read operation detected an incomplete defect, in accordance with the read command received from the host device, and, if the system controller 25 determines that the time is sufficient to replace the incomplete defect after the read operation or even during read operations, the system controller 25 can reproduce user data originally intended for the defective cluster containing a partial defect by adding information related to the defective cluster in the user data and write user data in the cluster replacement. User data previously recorded in the defective cluster, and information related to the defective cluster, you CRO-encode and write to the cluster replacement. Otherwise, only the user data KIO-encoded and recorded together with information relating to the defective cluster, the cluster replacement.

Below are examples of methods for recovering data recorded in the Fund is ctny the cluster.

U.S. patent No. 6367049 illustrates a method of recording data in the format KIO using KIO cluster, consisting of 304 long-range KIO reed-Solomon, and cluster indicator subcodes package (PIP BIS)containing 23 PIP. When creating a cluster PIP plot management data can be emitted as a field that provides information related to the defective cluster.

In particular, when data is written in this format KIO, when the defect is discovered during the verification process after the initial recording, user data previously recorded in the defective cluster containing the defect is read from the memory in accordance with the write command received from the host device, and is encoded in the cluster KIO. Then, control data with the physical address of the defective cluster is encoded in a cluster of PIP in the area of data management to create a physical cluster. The plot data control is used as a field that is recorded for the 16 physical address of the cluster substitution and information relating to the position and condition of the defective cluster. Then the physical cluster is recorded in the cluster replacement.

U.S. patent No. 6367049 illustrates the method of recording format KIO, when a partial defect detected during a read operation, in accordance with the read command received from the host device, i.e. the defective cluster is, containing the defect, it is possible to replace the cluster replacement. Thus, in light of the embodiments of the present invention and with reference to the data structure illustrated in U.S. patent No. 6367049, defective cluster, you can play, and errors in KIO cluster and the cluster PIP corrected to obtain user data. Then, the user data can be encoded in the cluster KIO. Then, the data management information of the physical address and the status of the defective cluster is encoded in a cluster of PIP, in the area of data management, and, thus, it is a physical cluster. In this case the segment data control is used as a field in which recorded 16 addresses cluster substitution and information relating to the position and condition of the defective cluster. Then the physical cluster can be written to the cluster replacement.

It is also possible to control defects in the recording media on a DVD-RAM drive for the recording media. Data can be written in the format KIO using a composite reed-Solomon codes (CCRS, an RSPC platform machine) (see specification data format DVD-RAM). Thus, the present invention is similarly applicable to storage media such as DVD-RAM and DVD, on which information can be recorded using the codes KKPC.

The information is teamasia to the position and condition of the defective cluster, can also be stored in the junction region between the recording units of the recording medium, when the defective cluster is replaced by a cluster of substitution. To increase the reliability of the recorded data information related to the position and condition of the defective cluster, preferably can be written in the structure of the error correction in the junction region, so that an error in the information could have been easily corrected.

Below will be described a method of information recovery time control recorded in the temporary control of defects (OWCD).

Figure 5 shows the back area of the recording medium formed on abort control of defects in the recording media, for example, due to unavoidable events, such as a power outage. According to figure 5 clusters of substitution, which are replacements of defective clusters are recorded in the reserve area. In the General case replacement for defects sequentially formed in the backup area, since the area with the lowest NSF. If necessary, the replacement can be consistently formed, since the area backup area with the highest NSF. Clusters of substitution are two types of clusters: clusters, information which is updated information temporary control (TDMS), and the cluster information which has not been updated. So the update info is obvious clusters of substitution indicates that the defects of the recording medium is successfully completed. Clusters of substitution, information which has not been updated, can you imagine that the defects of the recording medium was aborted and that you want to restore data recorded in the defective cluster.

Figure 6 shows diagrams illustrating the method of updating the backup bitmap (RBC), which is the kind of information temporary control. In particular, figa shows the recording status of the recording media described in RBC of the recording medium 100, where the control of defects in the recording media was aborted and you want to restore data recorded in the defective cluster, and figv shows the actual recording of the recording medium 100. In this case, the black rectangles indicate the areas of the recording medium 100, which contain data, the grey rectangles indicate the areas of the recording medium 100, which actually contain data, but listed as not including the data in the RBC, and the white rectangles indicate the areas of the recording medium 100 that do not contain data. If inspection of defects of the recording medium crashes, RBC correctly reflects the updated record.

When the recording medium 100 is inserted into the drive for the recording medium, a drive for the recording media checks the compatibility flag. If the flag is compatible with the value equal to '1', the drive for the recording medium determines that the recording medium 100 has been removed from the drive of the recording medium without a successful update information temporary control recorded in OVCD of the recording medium 100.

The drive for the recording media scans the area of the recording medium 100 that does not contain the data specified in the RBC, and checks written really in the plot data. Thus, the drive for the recording medium corrects RBC that it accurately reflected the state of recording of the recording medium 100. As noted above, RBC is the map, which specifies the recording status of the recording media bit values, i.e. indicates whether the data contain clusters allocated physically recordable area of the recording medium 100. The drive for the recording media scans all the clusters that are identified as not containing data that is specified in the RBC, verifies that these clusters do not contain data, and creates a new RBC, reflecting the result of the check, i.e. updates the previous RBC. When updated RBC is recorded as information of a temporary control OVCD, update RBC completes.

On figs shows the recording status of the recording medium 100 with the new RBC, which accurately indicates whether the cluster data. The drive for the recording media creates a new RBC, updating previous RBC bit values.

7 is provided to a logic block diagram of the control method of the defects in the recording media according to a variant implementation of the present invention. According to Fig.7. in operation 701, when the recording media is write once, which was never carried out inspection of the recording media loaded in the drive for the recording medium (or media playback and/or recording), the drive for the recording medium reads the information of the temporary control of OVCD, stores the read information in the memory and performs the initialization of the recording medium necessary for the operation of read/write. In operation 702, if the loaded recording medium is not empty a recording medium, a drive for the recording medium reads the set value C_flag flag compatibility of temporal information of the inspection recorded in OVCD, and determines whether successfully updated information of defects relating to the recording media can be written only once. For example, if the compatibility flag C_flag=1, then the information of the defects was aborted, and if the compatibility flag C_flag=0, the information of the defect was successfully completed. If in operation 702 it is determined that the information of the defect has not been successfully updated, in operation 703 reads the time information of the defects contained in the information temporary control recorded in the memory is determined by the position of the most recently created area of the substitution, the reproduced data written in the following cluster replacement, and Oprah is eleesa information related to the position and condition of the defective cluster. In operation 704 generates a list of defects, which indicates a defective cluster and the cluster replacement, based on specific information of the position and status. In operation 705 creates a new information of defects on the basis of the list of defects and previous temporal information of the defects. In operation 706 updated section of the time control defects OVCD.

As noted above, U.S. patent No. 6367049 illustrates a method of playback of the data in the format KIO, in which the physical address of the defective cluster and the information recorded in the cluster of substitution in the control defects. Thus, in light of the embodiments of the present invention and with reference to the data structure illustrated in U.S. patent No. 6367049, most recently updated cluster substitution can be detected from the backup area of the recording medium on the basis of the time information of the defects contained in the control information of the defects. Then read the data recorded in the cluster of substitution of the following for the detected cluster replacement. You can then correct the error in cluster PIP substituted physical cluster. Then you can create lists of defects, which lists the defective clusters and cluster replacement, turning to physical addresses and information with the standing of the defective clusters, specified in data management. Then you can create a new temporal information of defects on the basis of lists of defects and final temporal information of defects, which has been read and stored in memory when loading the recording media can be written only once in the drive for the recording media. In addition, if the data to be contained in the information temporary control, exist and need to be updated, the data is also updated and recorded as information of a temporary control OVCD. This implementation is applicable to recording media for write-once and rewritable media accounts, change of particulars update data in accordance with characteristics of the recording media.

Similarly for the recovery of the data contained in the defective cluster DVD, where data is written in the format CCRS, and information physical address and status of the defective cluster is recorded in the block substitution, first, the most recently formed unit substitution reveal from the backup DVD area, on the basis of the time information of the defects contained in OVCD. Then read and reproduce the data recorded in the next block, and correct the error in the data. Then receive information relating to the positions and States of the defective clusters recorded in the backup region is ti RSV, shown in figure 4, and on the basis of the received information to create lists of defects, which lists the defective clusters and clusters of substitution. Then create a new temporal information of defects on the basis of lists of defects and final temporal information of defects, which is read and stored in memory when loading a DVD into the drive for the recording media. If the data to be contained in the information temporary control, exist and need to be updated, the data is again updated and recorded as information of a temporary control OVCD. This method can be performed both on the storage medium for write-once and rewritable media accounts, change of particulars update data in accordance with characteristics of the recording media.

In addition, to restore the data recorded in the defective clusters in the junction region containing information relating to the positions and States of the defective clusters, most recently updated block replacement can be identified from the backup area of the recording medium, on the basis of the time information of the defects contained in the information temporary control. Then, the data related to clusters substitution selected block substitution is read from the junction region to obtain information related to Kozitsyn and conditions of the defective cluster. Then, on the basis of the read information generated lists of defects, which are listed in the defective clusters and clusters of substitution. Then create a new temporary information of defects on the basis of lists of defects and final temporal information of defects, which information is read and stored in memory when loading the recording media in the drive for the recording media. If the information you want to add to the information of the temporary control exists and needs to be updated, the information is updated and recorded as information of a temporary control OVCD. This method can also be used as recording media for write-once and rewritable media accounts, change of particulars update data in accordance with characteristics of the recording media.

The above how to recover data as applicable to recording media for write-once and rewritable media accounts. However, for media recording time write required area of control of defects and OWCD to control defects in the recording media, while the inclusion of OVCD in a rewritable recording media is not required. For compatibility with rewritable media records it is recommended that the scope of control of defects in the recording media once the recording was the same as in the rewritable recording media, and to the most recently updated time control recorded in OVCD, was recorded in the area of control of defects when finalizing the recording media.

The described method of monitoring defects can be realized as a computer program, which may be performed on the computer. The program may be stored on machine-readable media. When the program is read and executed by a computer controlled defects. While machine-readable medium may be, for example, magnetic recording media, optical recording medium or carrier wave.

Thus, as described above, embodiments of the present invention provide a method, device and computer-readable media for data recovery temporary controls, including temporary information of defects, which is recorded in the temporary area of the control defects (OWCD).

According to variants of implementation of the present invention it is possible to recover information of defects recorded in the area of control of defects of each of rewritable recording media. For example, although clusters of substitution can replace the defective clusters that arose during the operation of read/write operations on the recording medium can be written only once (or Perez is vivamos the recording medium), the recording media may be removed from the drive for the recording media without a successful update information of defects in OWCD/area control defects, for example, due to unavoidable events, in particular power system. Thus, even in this case, according to the modalities for the implementation of the present invention, it is possible to restore the temporal information of defects/defects information recorded in OWCD/area control defects. It is also possible to restore the backup bit map (RBC), which has not been updated.

Although there have been shown and described only certain embodiments of the present invention, the present invention is not limited to the disclosed variants of implementation. On the contrary, experts in this field can make in this variant implementation changes without departing from the principles and essence of the invention, the scope of which is defined by the claims and its equivalents.

Industrial applicability

In particular, the present invention can be successfully applied to the drive for the recording medium or media playback and/or recording, made with the possibility of checking whether the system is disconnected improperly. However, if the drive for the recording media cannot verify whether the system is disconnected improperly, the present izopet the tion allows the drive for the recording medium to perform a write operation and data recovery in accordance with the command of the master device, or when loading the recording media in the drive for the recording media.

1. The recording media that contains the

the reserve area, keeping the area of the substitution, which is a replacement for the defective area of the recording medium, and

the scope of control of defects, which stores information of defects, identifying the defective region and the area of the substitution,

moreover, the position information pertaining to the defective area is recorded in the area of the substitution.

2. The recording medium according to claim 1, in which the information of the defects is updated in the control defects at each write operation or in response to a predetermined number of write operations.

3. The recording medium according to claim 1, in which in the area of the substitution recorded status information pertaining to the defective area.

4. The recording medium according to claim 3, in which the position information and status information relating to the defective region, encoded for error correction code (CRO) the CRO-coding of the data recorded in the area of the substitution.

5. The recording medium according to claim 3, in which CRO-encoded data and the position information and status information recorded in the area of the substitution.

6. The recording medium according to claim 1, in which the scope of control of defects is at least one of the input area and output area.

7. The device, containing

the writer/reader that writes and/or reads data about the wearing of the recording medium, and

a controller that controls the writer/reader to write data in the area of the substitution, for the defective area of the recording medium in the backup area of the recording medium, for recording information of defects, identifying the defective region and the area of the substitution, in the scope of the inspection and to record the position information pertaining to the defective area, in the area of the substitution.

8. The device according to claim 7, in which the controller controls the writer/reader to record the information of the defects in the area of control of defects formed in at least one of the input area and output area of the recording media.

9. The device according to claim 7, in which the controller controls the writer/reader to record state information pertaining to the defective area, in the area of the substitution.

10. The device according to claim 9, in which the controller controls the writer/reader to encode code error correction (CRO) position information and state information with the data to be write in the area of the substitution.

11. The device according to claim 9, in which the controller controls the writer/reader for recording position information and state information and CRO-coded data in the area of the substitution.

12. The device, containing

the writer/reader, the recording and/or reading data on the recording media, and

a controller that determines whether the control of defects in the recording media is successfully completed, the Manager writer/reader for reading information related to the defective area of the recording medium, from the area of the substitution of the recording medium and generating information of the defects of the recording medium based on the information pane replacement.

13. The device according to item 12, in which the controller controls the writer/reader to update the control defects of the recording medium on the basis of the generated information of defects.

14. The device according to item 12, in which the controller controls the read flag compatibility with the recording medium and determines whether successfully completed the inspection of defects of the recording medium, on the basis of the compatibility flag.

15. The device according to item 12, in which the controller controls the read position information pertaining to the defective area, from the area of the substitution, and generates information of defects.

16. The device according to item 12, in which the controller controls the reading state information pertaining to the defective area, from the area of the substitution, and generates information of defects.

17. The device according to item 12, in which the controller generates information of defects on the basis of previous information of the defects of the recording medium and information in the field of substitution.

18. The device, containing

head, zapisyvaus and/or reading data on the recording media, and

a controller that determines whether the control of defects in the recording media is successfully completed, the managing head for scanning area of the recording medium, presumably do not contain recorded data, which is identified in the most recently recorded backing bitmap (RBC) on the recording medium, for checking whether the data recorded in the above-mentioned section, and updates RBC to reflect the recording status of the recording medium on the basis of verification of the mentioned area of the recording media.

19. The device according to p, in which the controller controls the recording updated RBC as information of defects in the region of the temporary control of defects in the recording media.

20. The device, containing

the writer/reader, the recording and/or reading data on the recording media, and

a controller that controls the writer/reader for reading information related to the defective area of the recording medium, from the area of the substitution of recording media, and the area of the substitution includes position information pertaining to the defective area, and generating the temporal information of defects on the basis of previous temporal information of the defects of the recording medium and information in the field of substitution of the recording media.

21. The device according to claim 20, in which the controller generates an IPN is OK defects on the basis of information in the field of substitution and re-creates the temporal information of defects on the basis of previous temporal information of the defects and defects.

Priority items:

01.05.2003 according to claims 1-17, 20, 21;

15.05.2003 on PP, 19.



 

Same patents:

FIELD: optical information carrier, meant for reading only.

SUBSTANCE: information carrier contains a set of areas, wherein data is recorded in form of recesses, where aforementioned set of areas contains a service area, into which carrier-unique code is recorded during manufacture, input area, user data area and output area. Template of recesses created in service area is different from template of recesses created in at least one area among input area, user data area and output area. In a variant, modulation method, used for recording recesses in service area, is different from modulation method during recording of recesses in at least one area among input area, user data area and output area.

EFFECT: increased efficiency of data reproduction.

20 cl, 23 dwg

Record carrier // 2312406

FIELD: record carriers.

SUBSTANCE: record carrier contains two or more layers. Layers contain identical information. Layers are rotated for an angle relatively to each other around the carrier center axis.

EFFECT: higher probability of reading of information from aforementioned carrier in case of appearance of scratches on its surface.

2 cl, 3 dwg

FIELD: disk cleaning devices.

SUBSTANCE: disk cleaner (1), body of which is composed of two or several parts (2), (3), (4) attached to each other, which may be mutually closed or opened. One part (4) of these parts includes a socket structure (7), partially receiving disk (1), and one part (2) of these parts includes a structure in form of an attachment for means (5) of cleaning and washing, by means of which in aforementioned parts, being in closed state facing each other with frontal surfaces, means (5) of washing are positioned in front of disk (1) in the socket (7).

EFFECT: increased efficiency.

6 cl, 5 dwg

FIELD: data carriers.

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EFFECT: increased efficiency.

4 cl, 9 dwg

FIELD: optical information carriers.

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EFFECT: reduction of time required to receive information about polarity of tracking signal.

3 cl, 22 dwg

FIELD: information storage environments, which feature input area, user data area and output area.

SUBSTANCE: in accordance to the invention, aforementioned environment contains compatibility information, which is recorded in one of areas - input area or output area. Aforementioned information determines whether disk drive, corresponding to older version of standard, and information storage environment, corresponding to newer version of standard, are compatible.

EFFECT: possible determining of possibility of recording of data by disk drive of older standard version into information storage environment of newer standard version.

5 cl, 7 dwg

FIELD: optical environment for storage of information and method for recording information onto optical environment.

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EFFECT: simplified manufacture of optical environment, improved recording/reproducing characteristics.

2 cl, 10 dwg

FIELD: information carrier and method and device for reproducing data.

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EFFECT: possible fast and precise reproduction of additional information from carrier.

6 cl, 7 dwg

FIELD: information storage environment and method for recording and/or reproduction from it.

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5 cl, 5 dwg

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EFFECT: prevented interruption in reproduction of audio sub-data even during forward or reverse reproduction.

5 cl, 11 dwg

FIELD: recording method for use by a device and/or which is encoded on computer-readable carrier.

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EFFECT: increased efficiency.

10 cl, 17 dwg

FIELD: data carriers.

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EFFECT: method and device may be used with recordable disks, efficient usage of defect control area is possible.

10 cl, 9 dwg

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EFFECT: effective usage of fault control area which has a limited capacity.

77 cl, 14 dwg

FIELD: methods of recording and/or playing back for optic record carriers.

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EFFECT: improved stability of recording; improved stability in data recording.

125 cl 11 dwg

FIELD: technology for recording information onto data carrier, having shape of disc, like those of optical or magnetic disc.

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EFFECT: decreased number of leaps of recording head during recording, higher efficiency of disc capacity use.

2 cl, 3 dwg

FIELD: optical data carriers.

SUBSTANCE: disk has recording area, where data are recorded in at least one physical cluster, defect area, in which defect, preventing recording and/or reproduction of data, is present in recording area, and recording end area, in which information, pointing to end of recording, is recorded prior to defect area. After defect area a link is set.

EFFECT: broader functional capabilities, higher efficiency.

4 cl, 11 dwg

FIELD: optical data carriers.

SUBSTANCE: primary reserved area, marked out during initialization, is present on data carrier. Also present is auxiliary reserved area, marked after initialization and/or expanded reserved area. Additional reserved area is marked in directly, starting from back portion of data zone.

EFFECT: excluded double replacements and marking of normal blocks as defect ones.

2 cl, 11 dwg

FIELD: optical data carriers.

SUBSTANCE: method includes following stages: forming of a group of multiple zones on disk, while a group includes data area of user, including code block with correction of mistakes, distribution of primary, free space for the group. Additional free space is distributed with possible exclusion of discontinuousness of code block with correction of mistakes contained in user data area, at the limit between zones and distribution of it at two zones. Such distribution may be realized by skipping sectors at the end of zone, of their number is less than needed for forming code block with correction of mistakes with correction of primary position of code block with correction of mistakes at limit between zones.

EFFECT: higher efficiency.

3 cl, 9 dwg

FIELD: optical data carriers.

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EFFECT: higher efficiency.

2 cl, 9 dwg

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EFFECT: higher efficiency.

2 cl, 5 dwg

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EFFECT: reduced delay time of graphic representation.

5 cl, 14 dwg

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