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US 2012/0017137 A1Published application
Disc recording medium, disk drive apparatus, reproduction method, and disk manufacturing method
AssigneeSony Corporation
InventorShoei Kobayashi
Life of this patent
Estimating the term…
Abstract
A recording and reproducing area and a reproduction-only area are formed by wobbling a groove formed in a spiral fashion to form a track to be tracked on a disk. The recording and reproducing area has address information recorded by wobbling of the groove and information recorded and reproduced by phase change marks on the track formed by the groove where the address information is recorded. The reproduction-only area has prerecorded information recorded by wobbling of the groove.
Claims13
A method of recording data on a disk, comprising:
- receiving 32 sectors of user data, each sector including 2048 bytes;
- error-correction coding the received user data using a long distance code (LDC) to form an LDC block having 304 columns with 216 rows of data and 32 rows of parity information;
- forming an LDC cluster from the LDC block, the LDC cluster having 152 columns and 496 rows;
- receiving 32 units of user control data, each unit including 18 bytes;
- forming an access block from the user control data and address data, the access block having 24 columns and 30 rows;
- error-correction coding the access block using a burst indicator subcode (BIS) to form a BIS block having 24 columns with 30 rows of data and 32 rows of parity information;
- forming a BIS cluster form the BIS block, the BIS cluster having 3 columns and 496 rows;
- forming an EEC cluster having 155 columns and 496 rows by repeatedly alternating a block of 38 columns of the LDC cluster and one column of the BIS cluster;
- forming a physical cluster from the EEC cluster;
- and
- recording the physical cluster in a read-write zone on the disk.
8 more elements
A recording apparatus for recording data on a disk, comprising:
- an EEC encoder configured to
- receive 32 sectors of user data, each sector including 2048 bytes;
- error-correction code the received user data using a long distance code (LDC) to form an LDC block having 304 columns with 216 rows of data and 32 rows of parity information;
- form an LDC cluster from the LDC block, the LDC cluster having 152 columns and 496 rows;
- receive 32 units of user control data, each unit including 18 bytes;
- form an access block from the user control data and address data, the access block having 24 columns and 30 rows;
- error-correction code the access block using a burst indicator subcode (BIS) to form a BIS block having 24 columns with 30 rows of data and 32 rows of parity information;
- form a BIS cluster form the BIS block, the BIS cluster having 3 columns and 496 rows;
- form an EEC cluster having 155 columns and 496 rows by repeatedly alternating a block of 38 columns of the LDC cluster and one column of the BIS cluster;
- and
- form a physical cluster from the EEC cluster;
- and
- means for recording the physical cluster in a read-write zone on the disk.
10 more elements
A non-transitory disk recording medium, comprising:
- a groove formed in a spiral fashion to form a track on the disk recording medium;
- a recording and reproducing area in which address information is recorded by wobbling of said groove and the track formed by said groove is used for recording and reproducing mark information;
- and
- a reproduction-only area in which prerecorded information is recorded by wobbling of said groove,
- wherein a plurality of physical clusters are recorded in the recording and reproducing area, each physical cluster including 496 recording frames, each recording frame including 155 bytes of data, wherein 38 bytes of LDC data is repeatedly alternated with one byte of BIS data, so that the 155 bytes of data includes four sections of 38 bytes of the LDC data and three sections of one byte of the BIS data.
2 more elements
A method of recording data on a disk, comprising:
- receiving two sectors of user data, each sector including 2048 bytes;
- error-correction coding the received user data using a long distance code (LDC) to form an LDC block having 19 columns with 216 rows of data and 32 rows of parity information;
- receiving two units of user control data, each unit including 24 bytes;
- forming an access block from the user control data and address data, the access block having four columns and 30 rows;
- error-correction coding the access block using a burst indicator subcode (BIS) to form a BIS block having four 4 columns with 30 rows of data and 32 rows of parity information;
- forming a BIS cluster form the BIS block, the BIS cluster having one column and 248 rows;
- forming a PIC cluster having 20 columns and 248 rows by alternating a block of ten columns of the LDC block, one column of the BIS cluster, and nine columns of the LDC block;
- and
- recording the PIC cluster in a reproduction-only zone on the disk.
6 more elements
A recording apparatus for recording data on a disk, comprising:
- an EEC encoder configured to
- receive two sectors of user data, each sector including 2048 bytes;
- error-correction code the received user data using a long distance code (LDC) to form an LDC block having 19 columns with 216 rows of data and 32 rows of parity information;
- receive two units of user control data, each unit including 24 bytes;
- form an access block from the user control data and address data, the access block having four columns and 30 rows;
- error-correction code the access block using a burst indicator subcode (BIS) to form a BIS block having four columns with 30 rows of data and 32 rows of parity information;
- form a BIS cluster form the BIS block, the BIS cluster having one column and 248 rows;
- and
- form a PIC cluster having 20 columns and 248 rows by alternating a block of ten columns of the LDC block, one column of the BIS cluster, and nine columns of the LDC block;
- and
- means for recording the PIC cluster in a reproduction-only zone on the disk.
8 more elements
A non-transitory disk recording medium, comprising:
- a groove formed in a spiral fashion to form a track on the disk recording medium;
- a recording and reproducing area in which address information is recorded by wobbling of said groove and the track formed by said groove is used for recording and reproducing mark information;
- and
- a reproduction-only area in which prerecorded information is recorded by wobbling of said groove,
- wherein a plurality of PIC recording frames are recorded in the reproduction-only area, each PIC recording frame including 20 bytes of data, including ten bytes of LDC data, one byte of BIS data, followed by nine bytes of the LDC data.
2 more elements
Dependencies are inferred from the claim text.