US20050038957A1 - Information recording medium, method of configuring version information thereof, recording and reproducing method using the same, and recording and reproducing apparatus thereof - Google Patents

Information recording medium, method of configuring version information thereof, recording and reproducing method using the same, and recording and reproducing apparatus thereof Download PDF

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Publication number
US20050038957A1
US20050038957A1 US10/885,767 US88576704A US2005038957A1 US 20050038957 A1 US20050038957 A1 US 20050038957A1 US 88576704 A US88576704 A US 88576704A US 2005038957 A1 US2005038957 A1 US 2005038957A1
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Prior art keywords
version
information
version information
recording medium
disc
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US10/885,767
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English (en)
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Sang Suh
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LG Electronics Inc
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LG Electronics Inc
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Assigned to LG ELECTRONICS, INC. reassignment LG ELECTRONICS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SUH, SANG WOON
Publication of US20050038957A1 publication Critical patent/US20050038957A1/en
Priority to US11/701,445 priority Critical patent/US7650362B2/en
Priority to US11/701,446 priority patent/US8427920B2/en
Priority to US12/000,646 priority patent/US8102745B2/en
Abandoned legal-status Critical Current

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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
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • 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
    • 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
    • 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
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
    • 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
    • G11B2020/1278—Physical format specifications of the record carrier, e.g. compliance with a specific standard, recording density, number of layers, start of data zone or lead-out
    • G11B2020/1279—Permanent information and control data stored in the PIC zone of a Blu-Ray disc
    • 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
    • G11B2220/213—Read-only discs
    • 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
    • G11B2220/215—Recordable discs
    • G11B2220/216—Rewritable discs
    • 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
    • G11B2220/215—Recordable discs
    • G11B2220/218—Write-once discs
    • 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
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs
    • 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
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • 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
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • G11B2220/2575—DVD-RAMs
    • 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
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2579—HD-DVDs [high definition DVDs]; AODs [advanced optical discs]

Definitions

  • the present invention relates to information recording medium, such as an optical disc, a method of recording disc version information thereof, recording and/or reproducing method using the disc version information recording and/or reproducing, and a recording and reproducing apparatus thereof.
  • information recording medium e.g., an optical disc on which a large volume of data is recordable is widely used as an optical record medium.
  • HD-DVD high density optical record medium
  • program data of large capacity can be recorded and stored, such as a Blu-ray disc (BD) and the like.
  • the Blu-ray disc that is a sort of a next generation HD-DVD technology is the next generation optical record solution enabling to be fully equipped with data to remarkably surpass the previous DVD, and the technology specifications of global standardizations for the Blu-ray disc are being established together with other digital equipment.
  • BD-RE 2 ⁇ -speed (or higher) rewritable Blu-ray disc
  • BD-WO write-once Blu-ray disc
  • BD-ROM read-only Blu-ray disc
  • FIG. 1 illustrates a method of representing DVD disc version information according to a related art, 4 bits are allocated to a management area of a disc to display version information. Whenever a new version is implemented, additional bits are allocated to display the version.
  • the disc version information is used in determining whether a given recorder/reproducer can reproduce the data of a recorded disc. Hence, the disc version needs to be recorded by a more unified and extendible method.
  • the method of recording the disc version information are being discussed as well. Therefore, an efficient solution for recording the disc version information in a high density optical disc is urgently needed, which should be provided as standardized information to secure mutual compatibility.
  • the present invention is directed to an optical disc, method of recording disc version information thereof, recording and/or reproducing method using the disc version information thereof, and recording and/or reproducing apparatus thereof that substantially obviate one or more problems due to limitations and disadvantages of the related art.
  • An object of the present invention is to provide an optical disc, method of recording disc version information thereof, recording and/or reproducing method using the disc version information thereof, and recording and/or reproducing apparatus thereof, by which a new method of recording disc version information as standardized information to perform efficient recording and/or reproducing of the optical disc from the recorded disc version information.
  • Another object of the present invention is to provide an optical disc, method of recording disc version information thereof, recording and/or reproducing method using the disc version information thereof, and recording and/or reproducing apparatus thereof, by which new data structure configuring disc version information is defined.
  • Another object of the present invention is to provide an optical disc, method of recording disc version information thereof, recording and/or reproducing method using the disc version information thereof, and recording and/or reproducing apparatus thereof, by which the defined disc version information is recorded in a specific disc management area by a standardized method to provide reciprocal compatibility between discs of the same kind.
  • a further object of the present invention is to provide an optical disc, method of recording disc version information thereof, recording and/or reproducing method using the disc version information thereof, and recording and/or reproducing apparatus thereof, by which real data is recorded to be played back in the optical disc using the disc version information recorded in the disc.
  • a method of recording version information of an optical disc according to the present invention is characterized in that the disc version information is separated into a first version information and a second version information to be recorded in at least two separate areas, respectively.
  • a method of recording the disc information including the disc version information of an optical disc includes the step of recording disc size information indicating a size of the disc and information distinguishing a disc version within the disc information wherein the disc version information is separated into a first version information and a second version information to be recorded in at least two separate areas, respectively.
  • a version information data structure of an optical disc is characterized in that the disc version information comprises a first version information as a higher disc version and a second version information as a lower disc version.
  • an optical disc in a disc having disc version information recorded therein, is characterized in that the disc version information comprises a first version information as a higher disc version and a second version information as a lower disc version.
  • a method of recording version information of recording medium includes the steps of generating version information including a first version information and a second version information, at least one of the first version information and the second version information is to determine a backward compatibility with respect to reading or writing of the recording medium; and recording the version information on a specific area of the recording medium.
  • a method of recording version information of recording medium includes the steps of allocating information byte for a version information including first information and second information within the control information, wherein at least one of the first and second information determines a compatibility of recording medium; and recording the information byte on a specific area of the information recording medium.
  • a method of recording version information of recording medium includes the steps of allocating one information byte for disc size information indicating a diameter of the disc and disc version information indicating a disc version within the control information, the disc version information is separated into a first version information and a second version information; and recording the allocated information byte on a specific area of the optical disc.
  • a method of recording version information of recording medium includes the steps of generating the disc version information into first version information compatible with previous version and real version information; and recording the compatible version information and the real version information in at least two separate areas, respectively.
  • a data structure for version information of a recording medium characterized in that the version information comprises a first version information and a second version information, the one of first and second version information is used to determine to a backward compatibility with respect to reading or writing of the recording medium.
  • a data structure for version information of a recording medium characterized in that the version information including first version information and second version information, the second version information for indicating a higher version, which is not indicated by the first version information, wherein the second version information including first digit and second digit, the first digit for indicating “X”, and the second digit for indicating “Y” to respectively represent the version “X.Y” by binary notation.
  • a method of recording version information of recording medium includes the steps of recording a version information on a specific area of the optical recording medium, wherein the version information including first version information and second version information, the second version information for indicating a higher version, which is not indicated by the first version information, wherein the second version information including first digit and second digit, the first digit for indicating “X”, and the second digit for indicating “Y” to represent “X” and “Y” respectively for the version “X.Y” by binary notation.
  • a method of recording or reproducing data on or from a recording medium includes the steps of reading a control information including version information from a specific area of the recording medium, the version information including a first version information and a second version information, at least one of the first version information and the second version information being used to determine a backward compatibility with respect to reading or writing of the recording medium; and controlling a recording or reproducing of data on or from the recording medium based on the version information.
  • a method of recording or reproducing data on or from a recording medium includes the steps of reading a version information from a specific area of the optical recording medium, wherein the version information including first version information and second version information, the second version information for indicating a higher version, which is not indicated by the first version information, wherein the second version information including first digit and second digit, the first digit for indicating “X”, and the second digit for indicating “Y” to represent “X” and “Y” respectively for the version “X.Y” by binary notation; and recording or reproducing data on or from a main data area of the optical recording medium based on the read version information.
  • a recording medium having a version information, wherein the version information including first version information and second version information, the second version information for indicating a higher version, which is not indicated by the first version information, wherein the second version information including first digit and second digit, the first digit for indicating “X”, and the second digit for indicating “Y” to represent “X” and “Y” respectively for the version “X.Y” by binary notation.
  • a recording and/or reproducing method of an optical disc includes the steps of, if the disc is loaded, reading out a first version information and a second version information recorded in at least two separate areas, respectively as disc version information recorded within a management area of the disc, deciding whether the loaded disc is recordable and/or playable from the read-out first and/or second version information, and executing recording and/or reproducing if the loaded is recordable and/or playable.
  • a recording and/or reproducing apparatus of an optical disc includes a recording and/or reproducing unit, if the disc is loaded, reading out a first version information and a second version information recorded in at least two separate areas, respectively as disc version information recorded within a management area of the disc, the recording and/or reproducing unit deciding whether the loaded disc is recordable and/or playable from the read-out first and/or second version information and a control unit receiving from the recording and/or reproducing unit a result of deciding whether the loaded disc is recordable and/or playable, the control unit delivering a recording and/or reproducing command to the recording and/or reproducing unit if the loaded disc is recordable and/or playable.
  • FIG. 1 is a diagram of a method of displaying disc version information in DVD according to a related art
  • FIG. 2 is a structural diagram of a single-layered disc according to the present invention.
  • FIG. 3 is a structural diagram of a management area where disc version information of the present invention is recorded
  • FIG. 4 is a diagram of a method of recording disc control information including disc version information according to one embodiment of the present invention.
  • FIG. 5 is a diagram of a method of recording disc control information including disc version information according to another embodiment of the present invention.
  • FIG. 6 and FIG. 7 are diagrams of a method of recording disc control information including disc version information according to another embodiment of the present invention.
  • FIG. 8 and FIG. 9 are diagrams of a method of recording disc control information using disc version information according to another embodiment of the present invention.
  • FIG. 10 is a diagram of an optical disc recording and/or reproducing apparatus applicable to the present invention.
  • BD Blu-ray disc
  • DVD-RAM digital versatile disc
  • the present invention related to a method of recording disc version information. Newly defined disc version information is firstly explained and the method is then explained in detail as follows.
  • a disc version is newly defined whenever new specification item is added according to the development of disc technology of the same kind and a disc manufacturer records in a specific area of a disc information that the corresponding disc is prepared by which version, whereby a recording/reproducing apparatus (shown in FIG. 8 ) for recording and/or reproducing the corresponding disc reads and identifies the disc version information recorded in the disc for recording/reproducing.
  • disc version information is divided into three parts to represent and is defined as follows.
  • a first version information means new specifications in the same kind of disc format that reciprocal compatibility with a previous version, e.g., backwards compatibility with respect to reading or writing, is not secured since physical specifications of the disc are changed.
  • a second version information means addition to the corresponding specifications with the same number of first version information that the reciprocal compatibility is maintained if the first version information is identical in spite that the physical specifications of the disc are changed, e.g., writing condition or reading condition of the disc is changed.
  • a third version information means the compatibility is always maintained reciprocally by adding/changing editorial of specifications only in case that the physical specifications of the disc are not changed.
  • the first to third version information are described in the following manner for the definition thereof. For instance, if version information of a predetermined disc is represented by ‘Va.bc’, ‘a’ means the first version information, ‘b’ means the second version information, and ‘c’ means the third version information. Hence, if the disc version information is ‘V1.00’, the first to third version information become ‘1’, ‘0’, and ‘0’, respectively.
  • the version information will be represented by ‘V2.00’ if the added specification item is a new physical specification failing to maintain the compatibility with the previous version ‘V1.00’.
  • the version information will be represented by ‘V1.00’ if the added specification item is a new physical specification maintaining the compatibility with the previous version ‘V1.00’.
  • the version information will be represented by ‘V1.01’ if it is addition/change of specification-editorial having no change of the physical specification item.
  • the third version information may be unnecessary.
  • the disc version information is recorded in the disc so that the recording and/or reproducing apparatus (shown in FIG. 8 ) efficiently copes with the change of the physical specifications of the disc.
  • the record layback apparatus need not look up the third version information.
  • the present invention mainly deals with the first and second version information. Yet, it is apparent that the third version information can be recorded in the same manner as well.
  • the present invention divides the disc version information into the first version information and the second version information at least and defines areas where the first and second version information are recorded, respectively. Hence, the present invention enables to record the disc version information efficiently and to actively cope with the extension of the disc version.
  • FIG. 2 and FIG. 3 are a structural diagram of a single-layered disc and a diagram of a method of recording disc control information including disc version information.
  • a playback-only optical disc as well as a recordable optical disc is applicable to the present invention.
  • BD Blu-ray disc
  • the concept of the present invention is characterized in an optical disc having its disc version information updated to be applicable to DVD-RAM/ ⁇ RW/+RW and the like for example.
  • ‘disc control information’ including disc version information means information or area including various kinds of information for disc recording and/or reproducing. For instance, a Blu-ray disc names it ‘disc information’ or DVD-RAM/ ⁇ RW/+W names it ‘physical format information’.
  • DI disc information
  • FIG. 2 is a structural diagram of a single-layered disc having one record layer according to the present invention, in which disc information including disc version information of the present invention is recorded in a disc.
  • a lead-in area is provided on an inner circumference area of an optical disc, whereas a lead-out area is provided on an outer circumference area of the optical disc.
  • a pre-recorded area and a rewritable or write once area are separate from each other within the inner circumference area of the disc.
  • the pre-recorded area is an area where data was already recorded in manufacturing the disc, whereby a user or system is unable to perform data recording on the pre-recorded area at all.
  • the pre-recorded area is named PIC (permanent information and control data) area.
  • disc information as information required for disc recording is recorded in the PIC area.
  • TDMA temporary defect management area
  • TDMA temporary defect management area
  • BD-WO write-once optical disc
  • TDMA is unnecessary to remain as a reserved area.
  • the present invention intends to provide a method of recording disc version information efficiently as well as a method of recording speed information for recording and/or reproducing and write strategy (hereinafter abbreviated WS) as disc information in the pre-recorded area.
  • WS recording speed information for recording and/or reproducing and write strategy
  • the PIC area as the pre-recorded area is recorded by bi-phased high frequency modulated signals, the high frequency modulated signals in the corresponding area are played back according to a specific playback method, and information is acquired from the playback.
  • FIG. 3 is a structural diagram of a PIC area in the disc shown in FIG. 2 .
  • information can be rearranged like the structure of the PIC area in FIG. 3 when the entire information within the high frequency modulated PIC area is acquired. Yet, it does not mean that the PIC area is not physically constructed like the structure in FIG. 3 .
  • ‘one cluster’ represents a minimum record unit, 544 clusters gather to construct one fragment as one upper record unit, and total five fragments gather to form the PIC area.
  • Disc information is recorded in a front head cluster of a first fragment IF 0 .
  • the disc information is plurally recorded per record layer and speed permitted by the corresponding optical disc, and one disc information includes one hundred twelve bytes. Specifically, disc information constructed with 12 bytes is occasionally called disc information (DI) frame. Moreover, the same contents of the disc information are repeatedly recorded in each front head cluster of the rest of the fragments, thereby enabling to cope with loss of the disc information.
  • DI disc information
  • Information representing the corresponding record layer and speed and write strategy (WS) corresponding to the record layer and speed are recorded within each disc information of a recordable optical disc as well as disc version information. Hence, such information is utilized in recording and/or reproducing of the corresponding optical disc, thereby enabling efficient recording and/or reproducing.
  • optical disc is such a playback-only optical disc as BD-ROM, it is apparent that the speed information for the disc record and write strategy are not included in the disc information.
  • FIGS. 4 to 10 A method of recording disc version information within the above-explained disc information is explained in detail through various embodiments by referring to FIGS. 4 to 10 as follows.
  • FIG. 4 is a diagram of a method of recording disc information including disc version information according to one embodiment of the present invention, in which an area for recording disc version information is separately allocated.
  • At least one disc information is recorded in a disc, and an order of each disc information is decided according to its sequence number to be recorded by one byte.
  • the corresponding information is recorded at a fifth byte within the disc information, is named ‘DI frame sequence number in DI block’, and is briefly represented by ‘00h, 01h, 02h, . . . ’. Namely, if the information of the fifth byte is ‘00h’, it means first disc information. If the information of the fifth byte is ‘ 03 h’, it means fourth disc information.
  • write strategy (WS) interoperating with the speed meant by the corresponding disc information is recorded in an area named ‘write strategy parameters’ field by (L ⁇ 111) th bytes, and information for disc version is recorded in an area named ‘disc version’ field by N th byte.
  • the ‘disc version’ field is divided into two parts, in which first version information is recorded in first four bits and second four bits are allocated as an area for recording second version information therein.
  • first and second version information each having four bits allocated thereto, enables to represent maximum fifteen versions.
  • first version and second version represent each digit value by binary notation.
  • a value of ‘F’ is a hexadecimal expression meaning ‘15’ of decimal in case of ‘Vx.Fx’ or ‘VF.xx’ shown in FIG. 4 .
  • ‘x’ is an expression meaning that the corresponding version information is a value of ‘don't’ care'. The same expressions will be applied to another embodiments of the present invention that will be explained later.
  • the version of the corresponding disc is ‘V4.2x’.
  • FIG. 5 is a diagram of a method of recording disc information including disc version information according to another embodiment of the present invention, in which compatibility with a disc information recording method in the currently-discussed 1 ⁇ -rewritable Blu-ray disc (BD-RE) is maintained.
  • BD-RE 1 ⁇ -rewritable Blu-ray disc
  • disc size/version 11 th byte of disc information is named ‘disc size/version’ field where disc size information and version information are recorded. Size information, first version information, and second version information are recorded in first 2-bits, second 3-bits, and third 3-bits, respectively.
  • ‘00b’ means 12 cm and the rest are left as a reserved area for other disc sizes that will be added to the standardization later. For example, in case of 8 cm disc, it can be set to ‘01b’ .
  • 3-bits among total 6-bits are allocated to each of the first version information and the second version information so that each version information enables to represent maximum seven.
  • the version of the corresponding disc is ‘V1.2x’.
  • FIG. 6 is a diagram of a method of recording disc information including disc version information according to another embodiment of the present invention, in which compatibility with a disc information recording method in the currently-discussed 1 ⁇ -rewritable Blu-ray disc (BD-RE) is maintained like the embodiment of FIG. 5 .
  • BD-RE 1 ⁇ -rewritable Blu-ray disc
  • 4-bits are allocated to the second version information and 2-bits are allocated to the first version information unlike the embodiment of FIG. 5 .
  • the reciprocal compatibility is maintained in case of the same first version information. For example, if there are two kinds of discs with version 2.1 and version 2.2 respectively, a physical specification change may occur between each disc with respect to second version, but the reciprocal compatibility is maintained because of the same first version information. In another case, if there are two kinds of discs with version 1.1 and version 2.1 respectively, a physical specification change may occur between each disc with respect to first version, and the reciprocal compatibility is not maintained because of the different first version information.
  • the drive may access the disc to read or write data on the disc, because the first version information is same.
  • the disc size is 12 cm
  • the first version information becomes ‘2’
  • the second version information becomes ‘3’.
  • the version of the corresponding disc is ‘V2.3x’.
  • FIG. 7 is a diagram of a method of recording disc information including disc version information according to another embodiment of the present invention, in which compatibility with a disc information recording method in the currently-discussed 1 ⁇ -rewritable Blu-ray disc (BD-RE) is maintained like the embodiment of FIG. 5 or FIG. 6 .
  • BD-RE 1 ⁇ -rewritable Blu-ray disc
  • the first version information and the disc size information are recorded together in 11 th byte, whereas 1-byte is allocated to a separate reserved area (N th byte).
  • N th byte a separate reserved area
  • the disc size is 12 cm
  • the second version information becomes ‘4’
  • the first version information becomes ‘2’.
  • the version of the corresponding disc is ‘V2.4 ⁇ ’.
  • FIG. 8 is a diagram of a method of recording disc control information using disc version information according to another embodiment of the present invention.
  • Version information of the present invention means not disc specification version information but recording speed version information.
  • the recording speed version information recorded within disc information intends to represent a recording speed extending from a precious recording speed in the same manner of the above-described disc version information.
  • a write strategy (WS) to cooperate with a speed meant by the corresponding disc information is recorded in an area named ‘Write Strategy parameters’ field of L th ⁇ 111 th bytes and information for a recording speed version is recorded in another specific area named ‘Recording Speed Version’ field of N th byte.
  • the ‘Recording Speed Version’ field is divided into two parts. First 4-bits are allocated to record first version information therein and second 4-bits are allocated to record second version information therein. Hence, the first and second version information, to which 4-bits are allocated each, enable to represent maximum 15 versions.
  • the ‘Recording Speed Version’ field of N th byte is ‘0100 0010b’
  • the first and second version information become ‘4’ and ‘2’, respectively.
  • the recording speed version of the corresponding disc is ‘V4.2 ⁇ ’.
  • L to 111 bytes includes write strategy parameters for each recording speed, which is applied to a disc.
  • FIG. 9 is a diagram of a method of recording disc control information using disc version information according to another embodiment of the present invention, in which presence of non-presence of compatibility with a previous version is additionally represented by the disc version information.
  • First version information means real disc information of a current disc and is the version information recorded in N th byte as ‘actual disc version info’ field. And, a specific recording method in such a field is the same of that in FIG. 4 and its explanation is skipped in the following.
  • second version information means compatible version information compatible with a current disc and previous disc and is recorded in 11 th byte as ‘compatible disc version info’ field.
  • 6-bits are allocated to the field to represent compatible version information by a specific bit value.
  • alternative allocation is possible, e.g, 4-bits allocated to the field as version information of FIG. 1 .
  • the 11 th byte is ‘00 000010b’ and the N th byte is ‘0010 0010b’, it can be known from the 11 th byte that a disc size is 12 cm and compatible version information is ‘Version 2’ (this means that a specific version value can be decided by a specification but fails to mean ‘V2.xx’). And, it can be also known from the N th byte that real disc version information is ‘V2.2x ’.
  • the disc version information within the disc information it is able to read out not only the real version information of the current disc but also the compatible version information.
  • the disc version information is recorded in the above-described manner by a recording/reproducing apparatus.
  • a recording and/or reproducing apparatus shown in FIG. 10
  • An optical disc recording and/or reproducing method using disc version information and apparatus thereof according to the present invention are explained in detail as follows.
  • FIG. 10 is a diagram of an optical disc recording and/or reproducing apparatus applicable to the present invention.
  • a recording and/or reproducing apparatus includes a recording and/or reproducing unit 10 carrying out recording and/or reproducing on or from an optical disc and a control unit 20 controlling the recording and/or reproducing unit 10 .
  • the control unit 20 gives a recording and/or reproducing command for a specific area, and the recording and/or reproducing unit 10 caries out the recording and/or reproducing for the specific area according to the command of the control unit 20 .
  • the recording and/or reproducing unit 10 includes an interface unit 12 performing communications with an external device, e.g., host, a pickup unit 11 directly recording data on the optical disc or playing back the data, a data processor 13 receiving a playback signal from the pickup unit 11 to restore into a necessary signal value or modulating to deliver a signal to be recorded into a signal to be recorded on the optical disc, a servo unit 14 reading out a signal from the optical disc correctly or controlling the pickup unit 11 to record a signal on the optical disc correctly, a memory 15 temporarily storing disc control information including disc version information, and a microcomputer 16 responsible for controlling the above-described elements within the recording and/or reproducing unit 10 .
  • an external device e.g., host
  • a pickup unit 11 directly recording data on the optical disc or playing back the data
  • a data processor 13 receiving a playback signal from the pickup unit 11 to restore into a necessary signal value or modulating to deliver a signal to be recorded into a signal to be recorded on the optical disc
  • a display device 30 displaying a signal played back via the recording and/or reproducing unit 10 or providing a final user of information via the control unit 20 may be provided.
  • a recording and/or reproducing process of an optical disc according to the present invention is explained in detail as follows.
  • the disc control information recorded in the disc is read out to be temporarily stored in the memory 15 of the recording and/or reproducing unit 10 .
  • various kinds of the disc control information are utilized for the recording and/or reproducing of the optical disc.
  • the control information stored in the memory 15 includes disc information containing the disc version information of the present invention. Hence, the first and second version information recorded within the disc information are read out.
  • the microcomputer 16 within the recording and/or reproducing unit 10 decides that the corresponding disc is recordable and/or playable if the first version information within the disc version information read out from the loaded disc is ‘1’ and then notifies the corresponding decision to the control unit 20 .
  • the control unit 20 then delivers a normal recording and/or reproducing command to the recording and/or reproducing unit 10 .
  • the microcomputer 16 decides that the corresponding disc is not recording and/or playable if the first version information within the disc version information read out from the loaded disc is equal to or greater than ‘2’ and then notifies the corresponding decision to the control unit 20 .
  • the control unit 20 then notifies an announcement message informing that the recording and/or reproducing is impossible via the display device 30 to a user, if necessary.
  • the second version information is basically recordable and/or playable even if it is different.
  • a recording and/or reproducing apparatus having higher second version information may fail to support a certain function, such as the reading or writing data from or on the optical disc. In such a case, it is also possible to notify an announcement message that a certain function is not supportable to the user via the control unit. For instance, if the disc version supported by the recording and/or reproducing apparatus is ‘V1.1x’ and the disc version information read out from the loaded disc is ‘V1.3x’, the recording and/or reproducing is possible because the first version information is identical.
  • the second version information of the loaded disc is ‘1’ and corresponds to a previous version, compared to ‘3’ of the second version information the recording and/or reproducing apparatus supports, a certain function of the recording and/or reproducing apparatus may be unusable.
  • the microcomputer 16 within the recording and/or reproducing apparatus compares the first and second version information recorded in the loaded disc to its version information to decide recording and/or reproducing possibility or supportability of the certain function, and then delivers the corresponding decision to the control unit or user, thereby enabling the efficient recording and/or reproducing of the optical disc.
  • the present invention provides various methods of recording disc version information in a high density optical disc using disc information including the disc version information, and more particularly, using at least two kinds of version information, thereby enabling to uniformly apply the standardized disc information to efficiently cope with the recording and/or reproducing of the optical disc.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
US10/885,767 2003-08-14 2004-07-08 Information recording medium, method of configuring version information thereof, recording and reproducing method using the same, and recording and reproducing apparatus thereof Abandoned US20050038957A1 (en)

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US11/701,445 US7650362B2 (en) 2003-08-14 2007-02-02 Information recording medium, method of configuring version information thereof, recording and reproducing method using the same, and recording and reproducing apparatus thereof
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US12/000,646 US8102745B2 (en) 2003-08-14 2007-12-14 Information recording medium, method of configuring version information thereof, recording and reproducing method using the same, and recording and reproducing apparatus thereof

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US12/000,646 Division US8102745B2 (en) 2003-08-14 2007-12-14 Information recording medium, method of configuring version information thereof, recording and reproducing method using the same, and recording and reproducing apparatus thereof

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