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US 7,849,378 B2Granted
Optical disc, method of write to same and method of read from same
AssigneeSony Corporation
InventorSusumu Sensyu
Life of this patent
Estimating the term…
Abstract
An ID (identification) information, user data, and a control information are disposed each in one block, and subject to an error correction code (ECC). The user data and control information are disposed in an ECC block 1, while the ID information is disposed in an ECC block 2. The ECC blocks 1 and 2 are coded separately for error correction. The blocks thus coded for error correction are disposed in one physical structure, data is modulated, a sync signal is added to the modulated data, and then the data is written to an optical disc having the above data format.
Claims9
An optical disc having a data format, comprising:
- a first ECC (error correction code) data structure including at least a user data disposed in a first ECC block;
- and
- a second ECC data structure including at least a control information and ID information of a physical sector disposed in a second ECC block, the first and second ECC blocks are error correction coded independently;
- wherein the first and second ECC blocks are of the same ECC data structure, each interleaved independently, and expressed on the disc in a same physical data cluster, and said user data being arranged in the same direction as the error correction code having a long distance code (LDC) and said ID information being disposed in a direction of data on the optical disc.
1 more element
A method of recording to an optical disc, comprising:
- coding a first ECC (error correction code) block for error correction such that user data with EDC (error detection code) is disposed in the first ECC block;
- coding a second ECC block for error correction separately from the first ECC block such that control information and ID information are disposed in the second ECC block, the first and second ECC blocks are of the same ECC data structure, each interleaved independently, and error correction coded independently;
- modulating data of the first and second ECC blocks;
- adding a synchronization signal to the modulated data such that the first and second ECC blocks are disposed in one physical data cluster;
- and
- recording the modulated data with the synchronization signal to the optical disc;
- said user data being arranged in the same direction as the error correction code having a long distance code (LDC) and said ID information being disposed in a direction of data on the optical disc.
4 more elements
An apparatus of recording to an optical disc, comprising:
- a first encoding portion for encoding a first ECC (error correction code) block for error correction such that user data with EDC (error detection code) is disposed in the first ECC block;
- a second encoding portion for encoding a second ECC block for error correction separately from the first ECC block such that control information and ID information are disposed in the second ECC block, the first and second ECC blocks are of the same ECC data structure, each interleaved independently, and error correction coded independently;
- a modulating portion for modulating data of the first and second ECC blocks;
- an adding portion for adding a synchronization signal to the modulated data such that the first and second ECC blocks are disposed in one physical data cluster;
- and
- a recording portion for recording the modulated data with the synchronization signal to the optical disc;
- said user data being arranged in the same direction as the error correction code having a long distance code (LDC) and said ID information being disposed in a direction of data on the optical disc.
4 more elements
An apparatus of reproducing data from an optical disc, comprising:
- a decoding portion for respectively decoding a first ECC block in which at least a user data is disposed and a second ECC block in which at least a control information and ID information of a physical sector are disposed, said each block encoded to error correction code independently;
- a sending portion for sending control information disposed in said second ECC block to an application program in any other format;
- and
- a reproducing portion for reproducing the user data according to the control information,
- said optical disc having a data format having a physical data cluster in which the first ECC block and the second ECC block being of the same ECC data structure, each interleaved independently, and expressed on the disc;
- and
- said user data being arranged in the same direction as the error correction code having a long distance code (LDC) and said ID information being disposed in a direction of data on the optical disc.
4 more elements
A method of reproducing data from an optical disc, comprising:
- respectively decoding a first ECC block in which at least a user data is disposed and a second ECC block in which at least a control information and ID information of a physical sector are disposed, said each block being encoded to error correction code independently;
- sending control information disposed in said second ECC block to an application program in any other format;
- and
- reproducing the user data according to the control information,
- said optical disc having a data format having a physical data cluster in which the first ECC block and the second ECC block being of the same ECC data structure, each interleaved independently, and expressed on the disc;
- and
- said user data being arranged in the same direction as the error correction code having a long distance code (LDC) and said ID information being disposed in a direction of data on the optical disc.
4 more elements
Dependencies are inferred from the claim text.