Optical disk and method for recording data onto said disk and/or reproduction of data from said disk

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

 

The present invention relates to an optical disk of high density and method of recording data on the specified disk and/or reproducing data from a specified disk and, in particular, to an optical disk of high density, in which, when the continuous recording of the data area containing the defective area information indicating the end of recording, recorded in the field prior to the defect region, and the binding is carried out in the field, following the defective area, as well as to the method of recording data on an optical disk of high density and/or reproducing data from a specified disk.

In General, optical discs are widely used as media of recording information to an optical reader carrying out recording and/or reproduction of information in a contactless manner, and are divided into compact discs (CD), digital versatile disks (DVD), etc. in accordance with the amount of recorded data. As optical discs, allowing write operations, erase and playback, used CD-R, CD-RW with a capacity of 650 MB, DVD+RW with a capacity of 4.7 GB, etc. also developed HD-DVD with a capacity of 23 GB.

Figure 1 shows the basic structure of the writer intended to write a certain amount of data on the CD-RW on which it is possible to repeatedly record the so-called package. Before and p is the following block 105 of the user data, designed for recording user data, there are several input blocks 103 and output block 110. In addition, at the beginning of the base module records a block of 100 ligaments to ensure continuous recording. However, if the block 105 of the user data contains a defective area where recording is not possible, because data cannot be written in the defective area, the entry must be terminated before the defective area. However, you should pay attention to the absence of any specific guidance in relation to the method of recording and/or playback, as well as the structure of the optical disk in case of availability of the defective area. Thus, the defective region, seems to be handled differently, depending on the manufacturer of the disc or recording device/playback. Consequently, it could be a compatibility issue with the drive.

In the Korean patent application No. 2000-75374 filed by the applicant of the present invention, discloses a method of processing a defective area and a recording medium in which, applied to DVD-RW, immediately after the defective area, the scheme is applied binding, subject to a specific rule.

At the same time with respect to the optical disk of high density, with a capacity of not less than 20 GB, which will be extended in the near future, non-existent is there any guidance on the method of processing a defective area and structure of the disk in the presence of the defective area. Thus, you need a method of recording and/or playback and the corresponding structure of the disk in case of a defective area on an optical disc of high density.

The invention

To solve the above and/or other problems, the present invention provides an optical disk, on which, if in the process of checking the disk or in the process of recording and/or reproducing data detected defective area, the data of the end of the record, indicating that the recording is finished, the recorded immediately before the defective area, and a method of recording data on an optical disk and/or reproducing data from a specified disk. Thus, thanks to guaranteed compatibility drive improves the performance of recording and/or reproducing an optical disc of high density.

In addition, the present invention provides an optical disk and a method of recording data on an optical disk and/or reproducing data from a specified disk, whereby the recording and/or reproduction is carried out smoothly and continuously by collateral ligament after the defective area.

One aspect of the present invention provides an optical disk drive configured to write to the specified disk and/or reproducing data from a specified disk and contains the region to be written and, in which the recorded data in at least one physical cluster, a defective area in which the defect is impeding the implementation of the recording and/or reproduction of data is present in the recording area, and the area of the end of the record in which the information indicating the end of recording, recorded before the defective area.

The defective area is detected in the course of checking the disk performed to write data, or in the process of recording and/or playback of data.

To ensure accurate recording of data in the physical cluster before and after the physical cluster is provided by the input and output blocks.

At the end of the base module records, which recorded a specified amount of data, there is a 3rd fuse, where the recorded data indicating the end of the entry.

3rd fuse has a length of at least 300 channel bits and formed as a continuous pattern containing at least 3T and 5T.

With respect to the defective area of the recording is carried out, reducing the power of the write light source to the power level that does not allow the entry.

With respect to the defective area of the recording power of the light source support at the level of play.

Part of the record contains the recorded area in which data is already recorded, and an empty area in which no data is recorded.

Another aspect of this is subramania provides an optical disk, made writable to the specified disk and/or reproducing data from a specified disk containing the recorded area where data is recorded in at least one physical cluster, a defective area in which the defect is impeding the implementation of the recording and/or reproduction of data is present in the recording area, and the area of the end of the record in which the information indicating the end of recording, recorded before the defective area when the defect region is set bundle.

To protect user data in the input and output blocks provide additional 1st and fuse 2 fuse, respectively. 2nd fuse has the same length and pattern as the 3rd fuse indicates the end of the record.

Another aspect of the present invention provides a method of recording data on an optical disk of high density or reproducing data from a specified disk, containing the defective region, the method contains the following steps, which are recording data at a predetermined recording area containing the defective area, and write data indicating the end of recording, before the defective area.

The method further includes the installation of the ligament after the defective area.

Unit record data is the physical the ski cluster.

Another aspect of the present invention provides a method of recording data on an optical disk of high density and/or playback from a specified disk, containing the defective region, the method contains the following steps, which are recording data at a predetermined recording area containing the defective area, and establish a link after the defective area.

Brief description of drawings

The above features of the present invention are explained in the following detailed description of preferred variants of the invention with reference to the accompanying drawings, in which:

figure 1 presents the structure of a basic writer, used in traditional CD-RW;

on figa shows the structure for recording data in the same physical cluster.

on FIGU presents a framework for continuous recording of data in multiple physical clusters;

on figa presents the scheme of the preferred alternative implementation of the present invention as applied to continuous recording data in multiple physical clusters on the optical disk in case of detection of the defective area;

on FIGU presents the scheme of the optical disk with the defective area for the explanation of the method of recording and/or reproducing data by processing defectious optical disk according to a preferred variant implementation of the present invention;

on figs presents the dependence of the power of the light source from the time when the recording and/or reproducing with respect to the optical disk according to the present invention;

on figa and 4B presents the structure of the input and output blocks of the optical disk according to the present invention;

figure 5 presents a diagram illustrating the generation of the ligament after the defective area according to the method of recording data on an optical disk and/or reproducing information according to the present invention;

on figa and 6B presents the scheme of the optical disk with the defective area according to another preferred variant implementation of the present invention and the method of recording and/or reproducing data by processing a defective area of an optical disk.

Detailed description of the invention

On figa option shown illustrating the writing of data in the same physical cluster 5 on the optical disk high-density recording capability and/or playback data. On FIGU shows a variant of the continuous recording data in multiple physical clusters 15. Inputs 3 and 13 and outputs 8 and 18 are located before and after physical clusters 5 and 15, respectively. Inputs 3 and 13 and outputs 8 and 18 are designed for accurate recording of data in the physical cluster 5 and 15 when recording and/or reproducing data that is when data is written into inputs 3 and 13 or outputs 8 and 18 who have a wrong position for the write data, the error correction is performed so that the data could be continuously and to record and/or reproduce.

In addition, in the area where ends the record, there are 3-and fuses, 10 and 20, which stores information indicating the end of recording. The recording and/or reproduction of data with respect to the underlying writer, recorded the specified amount of data is terminated with a 3rd fuse. Although here as the minimum unit of recording, to record user data, is considered a physical cluster, the smallest unit of account may be the sector, the ECC block or a data block of a fixed size.

On figa option presented, illustrating the continuous recording and/or playback in relation to the base module record of the specified capacity, designed for recording user data that is present on the optical disk that meets the preferred version of the present invention, when the detection of the defective area 16, which does not allow recording and/or playback of data, the address corresponding to the defective area 16, is stored in the list of defects. The defective area 16 can be detected not only in the recording process is/or reproducing data, but in the course of checking the disk before writing data. To detect a defective area 16 during checking disk write meaningless data that cannot be reproduced, and in the process of this entry find the defective area.

According Fig. 3B, when recording is carried out in respect of the specified recording area containing the defective area 16, as in the defective area 16 you cannot write, region 14 end records where the recorded data indicating the end of recording is provided immediately before the defective area 16. Region 14 end-of-record may have the same configuration as the 3rd fuse 20. In other words, the configuration of the field 14 of the end of the record can provide the same length and pattern as the 3rd fuse 20. For example, when the 3rd fuse 20 has a length of at least 300 channel bits and a continuous pattern including at least 3T and 5T, preferably, the region 14 of the end of the record has the same length and pattern as the 3rd fuse 20. In this case, 3T and 5T Express units of length marks recorded on the disc.

According Fig. 3C, when writing data to the disk having the structure described above, the power of the light source (not shown) supported in the record level of Pw. Starting with the rear region 14 of the end of the entry, before the start of the defective region is here 16, the power of the light source is reduced relative to the recording level of PWso that it was impossible to write. The power of the light source should preferably be reduced to the playback level of Pr. In this case, it is preferable to reduce the power of the light source to the end region 14 of the end of the record. According Fig. 3V power reduction to the playback level of Prstarts at the position indicated by the dotted line in the area 14 of the end of the entry.

In this case, as shown in Fig. 4A, the inlet 13 can contain 1 fuse 13A having a predefined template that is designed to prevent overwriting by the reason of difference or change the starting point of the write data, and the preamble 13b for performing signal processing, such as locking or synchronization. In addition, according to Fig. 4B, the output can contain the conclusion 18a for the implementation of signal processing, 2nd fuse 18b having a predefined template to eliminate overwriting caused by changing the starting point of data entry. In the 1st fuse (13A) and the 2nd fuse (18b) serves as a buffer to protect user data. In this case the 2nd fuse 18b and 3rd fuse 20 can be configured so that they have the same length and templates. For example, the 2nd precochran the spruce 18b and 3rd fuse 20 can have a length of at least 300 channel bits, and can be formed in a continuous patterns including at least 3T and 5T.

After the defective area 16 pair is generated, allowing you to resume recording from physical cluster, located after the defective area 16. When this light source power again increases to the recording level of Pwstarting with the rear gate 18’following the defective area 16, and data recording is resumed. According Fig. 3B arrow between the output 18′ and sign 13’ after the defective area 16 indicates that the bundle is formed.

Below is a method of recording data on an optical disk and/or reproducing data from a specified disk according to the present invention.

According figa-3C, if you test drive or during the recording of data on the disk or reproducing data from the disc is detected defective area 16, where it is impossible to write data in the input area 13’preceding the defective area 16, and writes data indicating the end of recording. These end of the entry do not allow entry in the defect region 16. The intensity of the light source in the defect region 16 is reduced to below the recording level of Pwpreferably, before the playback level of Prwhere it is impossible to write data.

Then in the field, following the defective area 16, generate a link that allows you to resume the recording data. Thus, the output 18’ and the entry 13’located after the defective area 16 are connected.

In Fig. 5 shows the connection between the output 18’ and sign 13’located after the defective area 16. When you resume recording after the defective area 16 data can be recorded with a partial overlap of the gate 18’ and the next entry 13’, and not in the proper position record. In this case, the binding is carried out by correcting errors corresponding to the area of overlap recording. In this case, error correction is carried out in preparation for the case when the recording is finished before the defective area 16 and resumed after the defective area 16, resumes are not given initial point of entry.

Meanwhile, when the 2nd fuse 18b’ and the 3rd fuse 20 present in the output 18’have the same configuration, i.e. the same length and pattern, it is preferable to use the same scheme bundles, which are provided for the 3rd fuse 20, unchanged. As a result, after the defective area 16, the recording and/or reproduction is carried out smoothly. The recording and/or reproduction is carried out continuously until the physical cluster 15’following the entry 13’. When detected during the recording and/or playback of another defective area of the end of the record set is immediately before the defective area as described above, and a bunch of generate so that the recording can be resumed in the area, following the defective area. The physical cluster 15 is formed, for example, from 496 record blocks(15’-1, 15’-2,...). In Fig. 5 these blocks account shown after logging 13’. In this case, the cluster k” denotes a physical cluster.

When further recording power of the light source support at the record level of Pwstarting from the entrance 13’following the defective area 16. At the end of the basic writer, where you can record a given amount of data, write the 3rd fuse 20, indicating the end of recording. In this case, the data of the end of the record, i.e. the 2nd fuse, written before the defective area 16 has the same configuration as the 3rd fuse 20. Preferably, 3-and fuses 14 and 20 had a length of at least 300 channel bits and were configured in the form of a continuous pattern including at least 3T and 5T.

We proceed to describe the optical disc and method for recording data on an optical disk and reproducing information according to another preferred variant implementation of the present invention.

In Fig. 6A shows the state of having a place to record according to the method of recording data on an optical disk and/or after play the extermination of data from the optical disk according to another preferred variant implementation of the present invention. In this case, the recorded area begins after the (n-2)th physical cluster 22 and ends with the n-th block 28, and s (n+1)-th unit 31 starts an empty area in which no data is recorded. The blocks 22, 25, 28 and 31 C (n-2)th to (n+1)th have inputs 21, 24 and 27, and the outputs 23, 26, 29 and 32, respectively, and the n-th block 28 is detected defective area. As the record ends, the n-th block 28, in the input area after the n-th block 28, write the 3rd fuse 30 indicating the end of recording. In this case, the recording is carried out after the (n-2)-th block 22 and to (n+1)-th block 31, i.e. the part of the recording area is already recorded, and the remaining part is not recorded. In this case, the optical disk according to the present invention can be applied a method of recording and/or playback of data.

In Fig. 6B shows the state that occurs after fixation according to the method of recording data on an optical disk and/or reproducing data from the optical disk according to another preferred variant implementation of the present invention.

Recording starts after (n-2)-th block 22 and ends before the n-th block 28, which is defective area. Therefore, before the defective area 28 write the 3rd fuse 27’, indicating the end of recording. Between exit 29 and the inlet 30’located after the defective region 28, establishing links is ku. At the entrance, the following (n+1)-th block 31, which ends the record, write the 3rd fuse 33’, indicating the end of the entry.

When recording in the field, containing the defective area detected during continuous recording and/or reproducing data on an optical disc of high density or in the course of checking an empty disk, the data indicating the end of recording, recorded immediately before the defective area, and after the defective area set unit. This allows a more stable and reliable recording and/or reproduction of data.

According to the method of recording data on an optical disk and/or reproducing data from a specified disk in the presence of a defective area on an optical disc according to the present invention, the entry in the defect region is not carried out due to the fact that the data indicating the end of recording, recording to the recording ended before the defective area. In addition, the bundle installed in the field, following the defective area, enables stable recording and/or reproducing data.

The proposed standard processing a defective area on an optical disc of high density, allowing for continuous recording and/or playback of data, ensure the compatibility of the drive and, accordingly, increase the AET reliability of recording and/or reproducing on an optical disc of high density.

1. An optical disk which has a capability of recording and/or reproducing data containing a recorded area in which information is recorded in at least one physical cluster, a defective area in which the defect is impeding the implementation of the recording and/or reproduction of data is present in the recording area, and the area of the end of the record in which the information indicating the end of recording, recorded before the defective area.

2. The optical disk according to claim 1, in which the defective area is determined during the test drive conducted prior to data recording or during recording and/or playback of data.

3. The optical disk according to any one of claim 1 or 2, in which to ensure accurate recording of data in the physical cluster before and after the physical cluster is provided by the input and output blocks.

4. The optical disk according to any one of claim 1 or 2, in which at the end of the base module records, which recorded a specified amount of data, there is a 3rd fuse, in which the recorded data indicating the end of the entry.

5. The optical disk according to claim 4, in which the area of the end of the record has the same configuration as the 3rd fuse.

6. The optical disk according to claim 5, in which the 3rd fuse has a length of at least 300 channel bits and formed as a continuous pattern containing at least 3T and 5T.

7. The optical disk will love one of claims 1, 2, 5, or 6, in which when there is the defective area of the recording is carried out by reducing the power of the recording light source to the power level that does not allow to write to.

8. The optical disk according to claim 7, in which when there is the defective area of the recording power of the light source is maintained at the level of play.

9. The optical disk according to any one of claim 1 or 2, wherein the recording area includes a recorded area in which data is already recorded, and an empty area in which no data is recorded.

10. The optical disk is made with the possibility of data recording and/or reproducing data containing a recorded area in which data is written, at least in the same physical cluster, a defective area in which the defect is impeding the implementation of the recording and/or reproduction of data is present in the recording area, and the area of the end of the record in which the information indicating the end of recording, recorded before the defective area when the defect region is set bundle.

11. The optical disk of claim 10, in which the defective area is determined during the test drive conducted prior to data recording or during recording and/or playback of data.

12. The optical disk according to any one of claim 10 or 11, in which before and after the physical cluster are provided with input and output blocks for about the exact level of the write data in the physical cluster.

13. The optical disk according to any one of claim 10 or 11, in which the base end of the writer intended to write a specified amount of data is provided by the 3rd fuse, in which the recorded data indicating the end of the entry.

14. The optical disk according to item 13, in which the area of the end of the record has the same configuration as the 3rd fuse.

15. The optical disk 14, in which the 3rd fuse has a length of at least 300 channel bits and formed as a continuous pattern containing at least 3T and 5T.

16. The optical disk according to any one of p, 11, 14 or 15, in which recording is carried out in respect of the defective area by reducing the power of the recording light source to the power level that does not allow the entry.

17. The optical disk according to item 16, which is applied to the defective area of the recording power of the light source is maintained at the level of play relative to the defect region.

18. The optical disk 12, in which the input and output blocks are additionally provided 1st and fuse 2 fuse accordingly to protect user data.

19. Optical drive p, in which the 2nd fuse has the same length and pattern as 3-fuse indicating the end of recording.

20. The optical disk according to claim 19, in which the 2nd will protect the eh has a length of at least 300 channel bits and formed as a continuous pattern, containing at least 3T and 5T.

21. The optical disk according to any one of p, 11, 14 or 15, in which the recording area includes a recorded area in which data is already recorded, and an empty area in which no data is recorded.

22. The method of recording data on an optical disk and/or playback from a specified disk, containing the defective region, the method contains the following steps: recording the data in the specified area of the record that contains the defective area and writes data indicating the end of recording, before the defective area.

23. The method according to item 22, which further after the defective area install the bundle.

24. The method according to any of item 22 or 23, in which a defective area detected in the course of checking the disk performed to write data, or in the process of recording and/or playback of data.

25. The method according to any of item 22 or 23, in which the unit data record is the physical cluster.

26. The method according to paragraph 24, in which recording is carried out by reducing the power of the recording light source to the power level that does not allow the entry relative to the defect region.

27. The method according to p in which the recording power of the light source support at the level of play relative to the defect region.

28. The method according A.25, in which before and after the physical cluster provide the input and output blocks to ensure accurate recording of data in the physical cluster.

29. The method according to any of p, 23, 25, 26 or item 27, which at the end of the base module records, which recorded a specified amount of data, provide 3rd fuse for recording data indicating the end of the entry.

30. The method according to clause 29, in which the data indicating the end of recording, recorded before the defective area, have the same length and pattern as the 3rd fuse.

31. The method according to p, in which the input and output blocks provide additional 1st fuse and 2nd fuse accordingly to protect user data.

32. The method according to p, in which the 2nd fuse and 3rd fuse have the same length and the pattern.

33. The method according to one of p, 31 or 32, in which the 3rd fuse has a length of at least 300 channel bits and formed as a continuous pattern containing at least 3T and 5T.

34. The method according to any of p, 23, 25, 26 or 27, in which the recording area includes a recorded area in which data is already recorded, and an empty area in which no data is recorded.

35. The method of recording data on an optical disk and/or playback from a specified disk, containing the defective region, the method contains the following steps: write data at a predetermined recording area containing the defective area, and writes data indicating the end of recording, before the defect is Oh area and set the bundle after the defective area.

36. The method according to p, in which a defective area detected in the course of checking the disk performed to write data, or in the process of recording and/or playback of data.

37. The method according to any of p or 36, in which the unit data record is the physical cluster.

38. The method according to any of p or 36, in which the recording area includes a recorded area in which data is already recorded, and an empty area in which no data is recorded.

39. The method according to clause 37, in which the recording area includes a recorded area in which data is already recorded, and an empty area in which no data is recorded.

40. The method according to § 39, in which, after the physical cluster provide an output block that contains the 2nd fuse to protect the data, while the 2nd fuse of the same length and pattern as the 3rd fuse, in which the recorded data indicating the end of the entry.

41. The method according to p, in which the 3rd fuse has a length of at least 300 channel bits and formed as a continuous pattern containing at least 3T and 5T.



 

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