US20040090904A1 - Optical information storage medium and method of recording information thereon - Google Patents
Optical information storage medium and method of recording information thereon Download PDFInfo
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- US20040090904A1 US20040090904A1 US10/630,977 US63097703A US2004090904A1 US 20040090904 A1 US20040090904 A1 US 20040090904A1 US 63097703 A US63097703 A US 63097703A US 2004090904 A1 US2004090904 A1 US 2004090904A1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
- G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1883—Methods for assignment of alternate areas for defective areas
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1285—Status of the record carrier, e.g. space bit maps, flags indicating a formatting status or a write permission
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
Abstract
An optical information storage medium includes a lead-in area, a user data zone in which user data is recorded, and a lead-out area. Write protection information is recorded in at least one of the lead-in area and the lead-out area, together with defect management information. Information is recorded and/or reproduced according to the defect management information and the write protection information. The write protection information indicates a size of a write protected area differentiated from a plurality of sizes of write protected areas of the optical information storage medium.
Description
- This application claims the priority of Korean Patent Application No. 2002-48706, filed on Aug. 17, 2002, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.
- 1. Field of the Invention
- The present invention relates to an optical information storage medium and a method of recording information thereon, and more particularly, to an optical information storage medium on which write protection information and defect management information are recorded, and a method of recording such information thereon.
- 2. Description of the Related Art
- Optical discs are generally used as information storage media of optical pickup devices which record information on and/or reproduce information from the optical discs without contacting the optical discs. Optical discs are classified as either compact discs (CDs) or digital versatile discs (DVDs) according to their information recording capacity. CDs and DVDs further include CD-Rs, CD-RWs, DVD-RWs, DVD-random access memories (DVD-RAMs), DVDR/rewritables (DVD-RWs), and so forth. Furthermore, high-density digital versatile discs (HD-DVD) having a recording capacity of 20 GB or more have been developed.
- When a user uses such an optical disc, the user may desire not to record supplemental information on the optical disc any more, depending on the intended use of the optical disc. For example, when the user desires to only reproduce data recorded as archived files, additional data must be prevented from being recorded on the optical disc. For this, the need for recording write protection information has been raised and write protection information has been already recorded on DVD-RAM/R/RWs. However, even when the optical disc is write-protected, a portion of the optical disc should be recordable, if necessary. For example, even if the optical disc is write-protected, data should be able to be recorded in an area such as a spare area so that a defect area can be replaced with the spare area in order to manage defects, and as such, the write protection information and the defect management information should be able to be recorded on the optical disc, too.
- The present invention provides an optical information storage medium on which defect management information necessary for indicating whether defect management is permitted is recorded when write protection information is recorded, and a method of recording information thereon.
- Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
- According to an aspect of the present invention, there is provided an optical information storage medium including a lead-in area, a data zone in which user data is recorded, and a lead-out area. Here, write protection information is recorded along with defect management information in at least one of the lead-in area and lead-out area.
- The data zone includes an inner spare area and an outer spare area, which are to replace a defect area, and a user data area in which the user data is recorded, and if the defect area can be managed, the user data area is write-protected. A drive test zone and a disc identification zone included in at least one of the lead-in area and the lead-out area, and the inner spare area and/or the outer spare area are recordable.
- If the defect area cannot be managed, the user data area and a defect management zone included in at least one of the lead-in area and the lead-out area are write-protected. A drive test zone included in at least one of the lead-in area and the lead-out area and a disc identification zone which is included in at least one of the lead-in area and the lead-out area and in which the write protection information is recorded are recordable.
- According to another aspect of the present invention, there is provided an optical storage medium comprising: a lead-in area; a data zone in which user data is recorded; and a lead-out area, wherein a write protection information is recorded to indicate one of and differentiate between a plurality of write protection statuses of the optical storage medium, each one of the plurality of write protection statuses indicating a size of a corresponding write protected area of the optical storage medium.
- According to another aspect of the present invention, there is provided a method of recording information on and/or reproducing information from an optical information storage medium including a lead-in area, a user data zone in which user data is recorded, and a lead-out area. Write protection information is recorded. Defect management information necessary for indicating whether a defect area occurring when reproducing data can be managed is recorded.
- According to another aspect of the present invention, there is provided a method of recording information on and/or reproducing information from an optical storage medium including a lead-in area, a data zone in which user data is recorded, and a lead-out area, the method comprising: recording write protection information which indicates one of and differentiates between a plurality of write protection statuses of the optical storage medium, one of the statuses being to allow defect management of a write protected optical storage medium.
- According to another aspect of the present invention, there is provided an apparatus for recording data on and/or reproducing data from an optical storage medium, the apparatus comprising: a pickup to record data on and/or reproduce data from the optical storage medium; a system controller that records write protection information for indicating one of and differentiating between a plurality of write protection statuses of the optical storage medium, each one of the plurality of write protection statuses indicating a size of a corresponding write protected area.
- These and/or other aspects and advantages of the invention will become apparent and more readily appreciated from the following description of the preferred embodiments, taken in conjunction with the accompanying drawings of which:
- FIG. 1 illustrates the structure of an optical information storage medium according to an embodiment of the present invention; and
- FIG. 2 is a view for explaining a method of recording write protection information on an optical information storage medium according to an embodiment of the present invention;
- FIG. 3 is a block diagram of an apparatus for recording data and/or reproducing data from an optical information storage medium according to an embodiment of the present invention;
- FIGS.4 is a flowchart for explaining a method of recording data and/or reproducing data from an optical information storage medium according to an embodiment of the present invention; and
- FIG. 5 is a flowchart for explaining a method of recording data and/or reproducing data from an optical information storage medium according to another embodiment of the present invention.
- Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The embodiments are described below in order to explain the present invention by referring to the figures.
- FIG. 1 illustrates the schematic structure of an optical information storage medium (a disc) including a lead-in
area 10, adata zone 20 in which user data is recorded, and a lead-outarea 30. The lead-inarea 10 may include adisc test zone 10 a, adrive test zone 10 b, adefect management zone 10 c, adisc identification zone 10 e, and abuffer zone 10 f. The lead-inarea 10 may further include at least onereserved zone 10 d in which other pieces of information can be recorded. - Disc control information or information on the state of the disc can be generally recorded in the
disc identification zone 10 e. In the present invention, write protection information and defect management information can be recorded in thedisc identification zone 10 e. Thedisc identification zone 10 e can also be called a “disc-related information zone” or a “disc control zone” according to various formats. The lead-outarea 30 has a similar structure to the lead-inarea 10, and thus will not be described herein. - The
data zone 20 includes aninner spare area 20 a and anouter spare area 20 c, which are to be replaced with a defect area, and auser data area 20 b in which user data is recorded. If theuser data area 20 b has a defect area, data recorded in the defect area is copied into theinner spare area 20 a and/or theouter spare area 20 c. In other words, if a defect area A appears when reproducing data recorded in theuser data area 20 b, the defect area A may be replaced with a predetermined area B of theinner spare area 20 a. - Meanwhile, information on the defect area and information on the
inner spare area 20 a or theouter spare area 20 c with which the defect area has been replaced can be recorded in thedefect management zone 10 c. Further, data can be reliably recorded and/or reproduced by managing the defect area. The information recorded in thedefect management zone 10 c may be, for example, position information on the defect area and the area with which the defect area has been replaced. - FIG. 2 illustrates write protection information recorded in a byte in a predetermined error correcting code (ECC) block of the
disc identification zone 10 e. Here, the following information can be recorded according to bit values.TABLE 1 Byte Contents 00000000b Normal recording 00000001b Write protection information for (permanently) write- protecting all areas 00000010b Write protection information permitting defect management 00000011b Write protection information not permitting defect management - In Table 1, “normal recording” indicates that data can be recorded, erased, and reproduced. “Write protection information for write-protecting all areas” indicates that data must not be recorded in all areas any more, i.e., all areas are permanently write-protected. In this case, additional defect management is not necessary and the write protection information cannot be amended.
- “Write protection information permitting defect management” indicates that defects occurring when recording or reproducing data can be managed. Here, since information about the defect area has to be recorded to manage the defects, the
defect management zone 10 c of the lead-inarea 10 should be recordable. Also, since data recorded in the defect area has to be copied into a spare area (e.g., theinner space area 20 a or theouter space area 20 b) so that the spare area replaces the defect area, theinner spare area 20 a and theouter spare area 20 c have to be recordable. Thedrive test zone 10 b and thedisc identification zone 10 e also have to be recordable. Write protection information and defect management information is recorded in thedisc identification zone 10 e. Here, the write protection information may be selectively recorded by a user. In other words, the user can first record write protection information indicating that the disc is write protected in thedisc identification zone 10 e. Later, the user can record information indicating that the disc is recordable in thedisc identification zone 10 e. Thus, it is preferable that thedisc identification zone 10 e is recordable so that the write protection information can be updated. As described above, in an event that the write protection information permitting defect management is recorded, only theuser data area 20 b is write-protected. - “Write protection information not permitting defect management” indicates that defects occurring when recording or reproducing data cannot be managed. In this case, all areas are write-protected except the
drive test zone 10 b and thedisc identification zone 10 e. In other words, since the defects cannot be managed, thedefect management zone 10 c, the innerspare area 20 a, the outerspare area 20 c, and theuser data area 20 b are write-protected. Here, even if the defects cannot be managed, it is preferable that thedrive test zone 10 b is recordable to reproduce data and thedisc identification zone 10 e is recordable to update the write protection information and the defect management information. - As shown in FIG. 2, in an embodiment of the present invention, the write protection information is recorded in a byte in the
disc identification zone 10 e, i.e., in an N byte. However, the write protection information may be recorded in a plurality of bytes. Here, the write protection information and the defect management information can be recorded by a combination of bits in a predetermined byte. Alternatively, the write protection information and the defect management information may be recorded in separate bytes. In other words, the write protection information may be recorded in the N byte and the defect management information may be recorded in an (N+1) byte. - In an embodiment of the present invention, the write protection information and the defect management information can be recorded in at least one of the lead-in
area 10 and the lead-out area 30. However, since the write protection information and the defect management information recorded in the lead-inarea 10 or the lead-out area 30 may be damaged, the write protection information and the defect management information may be recorded in both the lead-inarea 10 and the lead-out area 30. - In a method of recording information on an optical information storage medium according to an embodiment of the present invention, write protection information can be recorded in at least one of the lead-in
area 10 and the lead-out area 30, along with defect management information necessary for indicating whether a defect area occurring when recording or reproducing data can be managed. The write protection information and the defect management information can be, for example, recorded in thedisc identification zone 10 e. As an example, the write protection is recorded to indicate one of a plurality of write protection statuses of the optical storage medium, and the write protection information may include information with regard to whether to allow defect management of the write protected optical storage medium. - If the defect management information indicates that the defect area can be managed, the
drive test zone 10 b, thedefect management zone 10 c, the innerspare area 20 a, and the outerspare area 20 c are recordable, and only theuser data area 20 b is write-protected. If the defect management information indicates that the defect area cannot be managed, thedefect management zone 10 c, the innerspare area 20 a, the outerspare area 20 c, and theuser data area 20 b are write-protected. - FIG. 3 is a block diagram of an
apparatus 100 for recording data and/or reproducing data from an optical information storage medium according to the present invention. During recording, anAV codec 110 compression-codes an externally applied AV signal according to a predetermined compression scheme and supplies size information for the compressed data. A digital signal processor (DSP) 120 receives the compressed A/V data supplied from theAV codec 110, adds additional data for error correction code (ECC) processing thereto, and performs modulation using a predetermined modulation scheme. A radio frequency amplifier (RF AMP) 130 converts the modulated data from theDSP 120 into a radio frequency (RF) signal. Then, apickup 140 records the RF signal supplied from theRF AMP 130 on a disc mounted on a turntable of thepickup 140. Aservo 150 receives information necessary for servo control from asystem controller 160 and stably performs a servo function for the mounted disc. - During playback of information data stored on the disc, the
pickup 140 picks up an optical signal from the disc having the information data stored therein, and the information data is extracted from the optical signal. TheRF AMP 130 converts the optical signal into an RF signal, and extracts a servo signal, for performing a servo function, and modulated data. TheDSP 120 demodulates the modulated data supplied from theRF AMP 130 corresponding to the modulation scheme used during modulation, performs an ECC process to correct errors, and eliminates added data. Theservo unit 150 receives information necessary for servo control from theRF AMP 130 and thesystem controller 160, and stably performs the servo function. TheAV codec 110 decodes the compressed AN data supplied from theDSP 120 to output an A/V signal. Thesystem controller 160 controls the overall system for recording the information data on and reproducing the information data from the disc mounted on the turntable of thepickup 140. - Thus, the data recording and/or reproducing
apparatus 100 can record the various types of information on the disc as described with reference to FIGS. 1 and 2, and/or reproduce the various types of information from the disc. - FIG. 4 is a flowchart for explaining a process of performing a data recording and/or reproducing method using the data recording and/or reproducing apparatus having the above-described structure, according to an embodiment of the present invention. In operation S10, a drive searches a disc for a physical address corresponding to a logical address requested by a host according to a reproduction command input from the host to reproduce data. Here, the drive corrects errors while reproducing data on an ECC block-by-block basis. Thus, if a defect or an error cannot be eliminated or corrected, the drive cannot reproduce data recorded in a block having the defect or the error. However, if the defect or the error in the block can be corrected by an ECC process, data can reproduced. Here, defects satisfying preset defect correction requirements can be corrected and managed. Thus, if an error-correctable defect occurs during reproduction of data in operation S20, in operation S30, information on the position of a defect area is stored in a
memory 170 built in thesystem controller 160. - For example, referring to FIG. 1, if a defect appears in a fifth block when the drive reproduces data, information necessary for indicating that the fifth block is the defect area A is stored in the
memory 170. Thereafter, in operation 40, the drive finishes reproducing information and the host does not give a reproduction command any more, i.e., the drive goes from a reproduction mode to a standby mode or the information storage medium is unloaded out of the drive. Inoperation 50, the position information of the defect area A stored in thememory 170 is read and data recorded in the defect area A (the fifth block) is copied into the predetermined area B of the innerspare area 20 a or the outerspare area 20 c, which is to replace the defect area A, while being reproduced. In operation 60, information on the positions of the defect area A and the predetermined area B are recorded as defect management information in thedefect management zone 10 c. - As described above, data of the defect area A copied into the predetermined area B can be reproduced using defect management information when reproducing the data recorded in the defect area A. In other words, by recording defect management information, data can be reliably reproduced by managing defects even if write protection information is recorded.
- FIG. 5 is a flowchart for explaining a process of performing a data recording and/or reproducing method using the data recording and/or reproducing
apparatus 100 having the above-described structure, according to another embodiment of the present invention. Referring to FIG. 5, inoperations 70 and 80, a defect area appears when reproducing data according to a reproduction command input from a host. Inoperation 90, the defect area is replaced with a predetermined area of the innerspare area 20 a or the outerspare area 20 c. Inoperation 100, information on the positions of the defect area and the replaced area are recorded as defect management information in thedefect management zone 10 c. In the present embodiment, if a defect area appears, the defect area is immediately replaced with a predetermined area and information on the positions of the defect area and the predetermined area is recorded. Thus, an auxiliary memory is not necessary. The data recording and/or reproducing method described in the present embodiment can be performed when a recording and/or reproduction speed is faster than a speed demanded by a host. - Even when an information storage medium is write-protected, defects can be managed according to the above-described embodiments of the present invention.
- While not required in all aspects, it is understood that the
system controller 160 can be computer implementing the method using a computer program encoded on a computer readable medium. The computer can be implemented as a chip having firmware, or can be a general or special purpose computer programmable to perform the method. - In addition, it is understood that, in order to achieve a recording capacity of several dozen gigabytes, the
pickup 140 could include a low wavelength, high numerical aperture type unit usable to record dozens of gigabytes of data on the disc. Examples of such units include, but are not limited to, those units using light wavelengths of 405 nm and having numerical apertures of 0.85, those units compatible with Blu-ray discs, and/or those units compatible with Advanced Optical Discs (AODs). - As described above, in an optical information storage medium and a method of recording information thereon according to the present invention, write protection information can be recorded together with defect management information necessary for indicating whether defects occurring when reproducing data can be managed. Even if the information storage medium is write-protected, the defects can be selectively managed using the defect management information. Thus, the write protection information indicates a size of a write protected area differentiated from a plurality of sized of write protected areas, wherein one of the statuses allows defect management of the write protected optical information storage medium.
- While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
Claims (15)
1. An optical storage medium comprising:
a lead-in area;
a data zone in which user data is recorded; and
a lead-out area,
wherein a write protection information is recorded to indicate one of a plurality of write protection statuses of the optical storage medium, each one of the plurality of write protection statuses indicating a size of a corresponding write protected area of the optical storage medium.
2. The optical storage medium of claim 1 , wherein the size includes a portion of the data zone.
3. The optical storage medium of claim 2 , wherein the data zone includes a user data area and at least one of an inner spare area and an outer spare area.
4. The optical storage medium of claim 3 , wherein the at least one of the inner and outer spare areas is recordable.
5. The optical storage medium of claim 3 , wherein the write protection information is configurable to indicate a status in which only the user data area is write-protected.
6. The optical storage medium of claim 1 , wherein at least one of the lead-in area and the lead-out area comprises a drive test zone and a disc identification zone, and the data zone includes an inner spare area and/or an outer spare area which are recordable.
7. The optical storage medium of claim 1 , wherein at least one of the lead-in area and the lead-out area comprises:
a drive test zone; and
a disc identification zone in which the write protection information is recorded,
wherein the drive test zone and the disc identification zone are recordable.
9. An optical storage medium comprising:
a lead-in area;
a data zone in which user data is recorded; and
a lead-out area,
wherein a write protection information is recorded to indicate a size of a write protected area differentiated from a plurality of sizes of write protected areas.
10. The optical storage medium of claim 9 , wherein the size includes a portion of the data zone.
11. The optical storage medium of claim 9 , wherein the data zone includes a user data area and at least one of an inner spare area and an outer spare area.
12. The optical storage medium of claim 10 , wherein if the data zone has a defect area, at least one of the inner and outer spare areas is useable to replace the defect area.
13. An optical storage medium comprising:
a lead-in area;
a data zone in which user data is recorded; and
a lead-out area,
wherein a write protection information is recorded to indicate one of a plurality of write protection statuses of the optical storage medium, one of the statuses being to allow defect management of a write protected optical storage medium.
14. The optical storage medium of claim 13 , wherein the data zone includes a user data area and at least one of an inner spare area and an outer spare area.
15. The optical storage medium of claim 13 , wherein the at least one of the lead-in area and the lead-out area comprises a drive test zone and a disc identification zone, and the data zone includes an inner spare area and/or an outer spare area which are recordable.
16. The optical storage medium of claim 14 , wherein if the user data area has a defect area, at least one of the inner and outer spare areas is useable to replace the defect area.
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US11/235,294 US20060018219A1 (en) | 2002-08-17 | 2005-09-27 | Optical information storage medium and method of recording information thereon |
US11/235,295 US7688693B2 (en) | 2002-08-17 | 2005-09-27 | Method of reproducing write protection information from an optical information storage medium |
US11/429,337 US20060198263A1 (en) | 2002-08-17 | 2006-05-08 | Optical information storage medium and method of recording information thereon |
US11/756,153 US7843797B2 (en) | 2002-08-17 | 2007-05-31 | Optical information storage medium having write protection information |
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Application Number | Priority Date | Filing Date | Title |
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KR1020020048706A KR100716965B1 (en) | 2002-08-17 | 2002-08-17 | Optical information storage medium and recording method of the same |
KR2002-48706 | 2002-08-17 |
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US11/235,294 Division US20060018219A1 (en) | 2002-08-17 | 2005-09-27 | Optical information storage medium and method of recording information thereon |
US11/235,295 Division US7688693B2 (en) | 2002-08-17 | 2005-09-27 | Method of reproducing write protection information from an optical information storage medium |
US11/429,337 Continuation US20060198263A1 (en) | 2002-08-17 | 2006-05-08 | Optical information storage medium and method of recording information thereon |
US11/756,153 Division US7843797B2 (en) | 2002-08-17 | 2007-05-31 | Optical information storage medium having write protection information |
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US10/630,977 Abandoned US20040090904A1 (en) | 2002-08-17 | 2003-07-31 | Optical information storage medium and method of recording information thereon |
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US11/235,295 Active 2025-10-22 US7688693B2 (en) | 2002-08-17 | 2005-09-27 | Method of reproducing write protection information from an optical information storage medium |
US11/235,294 Abandoned US20060018219A1 (en) | 2002-08-17 | 2005-09-27 | Optical information storage medium and method of recording information thereon |
US11/429,337 Abandoned US20060198263A1 (en) | 2002-08-17 | 2006-05-08 | Optical information storage medium and method of recording information thereon |
US11/756,153 Active 2024-07-21 US7843797B2 (en) | 2002-08-17 | 2007-05-31 | Optical information storage medium having write protection information |
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US (7) | US6862256B2 (en) |
EP (1) | EP1535279B1 (en) |
JP (2) | JP4537203B2 (en) |
KR (1) | KR100716965B1 (en) |
CN (1) | CN100351923C (en) |
AU (1) | AU2003214671A1 (en) |
BR (1) | BR0313512A (en) |
CA (1) | CA2494070C (en) |
HK (1) | HK1083265A1 (en) |
MX (1) | MXPA05001698A (en) |
MY (1) | MY135465A (en) |
PL (1) | PL374202A1 (en) |
RU (1) | RU2308774C2 (en) |
TW (1) | TWI237822B (en) |
WO (1) | WO2004017314A1 (en) |
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