Data recording/reproducing apparatus, method thereof, and data record medium
First Claim
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1. A digital data recording apparatus for recording digital data on a record medium, comprising:
- interleave means for interleaving the digital data with a first interleave length or a second interleave length that is larger than the first interleave length and forming interleaved digital data depending on whether record density information that represents the record density of the digital data on the record medium represents a first record density or a second record density that is larger than the first record density, respectively; and
recording means for recording the interleaved digital data on the record medium.
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Abstract
A digital data recording apparatus for recording digital data on a record medium is disclosed, that comprises an interleave means for interleaving the digital data with a first interleave length or a second interleave length that is larger than the first interleave length and forming interleaved digital data depending on whether record density information that represents the record density of the digital data on the record medium represents a first record density or a second record density that is larger than the first record density, respectively, and recording means for recording the interleaved digital data on the record medium.
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Citations
22 Claims
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1. A digital data recording apparatus for recording digital data on a record medium, comprising:
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interleave means for interleaving the digital data with a first interleave length or a second interleave length that is larger than the first interleave length and forming interleaved digital data depending on whether record density information that represents the record density of the digital data on the record medium represents a first record density or a second record density that is larger than the first record density, respectively; and recording means for recording the interleaved digital data on the record medium. - View Dependent Claims (2, 3, 4)
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5. A digital data reproducing apparatus, comprising:
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reading means for reading interleaved digital data from a record medium; record density detecting means for detecting the record density of the interleaved digital data and generating record density information; and deinterleave means for deinterleaving the interleaved digital data with a first interleave length or a second interleave length that is larger than the first interleave length and outputting digital data depending on whether the record density information represents a first record density or a second record density that is larger than the first record density, respectively. - View Dependent Claims (6, 7, 8)
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9. A digital data recording method for recording digital data on a record medium, comprising the steps of:
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interleaving the digital data with a first interleave length or a second interleave length that is larger than the first interleave length and forming interleaved digital data depending on whether record density information that represents the record density of the digital data on the record medium represents a first record density or a second record density that is larger than the first record density, respectively; and recording the interleaved digital data on the record medium.
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10. A digital data reproducing method, comprising the steps of:
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reading interleaved digital data from a record medium; detecting the record density of the interleaved digital data and generating record density information; and deinterleaving the interleaved digital data with a first interleave length or a second interleave length that is larger than the first interleave length and outputting digital data depending on whether the record density information represents a first record density or a second record density that is larger than the first record density, respectively.
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11. A digital data recording apparatus, comprising:
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error-correction-code encoding means for error-correction-code encoding digital data for every block with a first data amount or a second data amount that is larger than the first data amount and forming error-correction-code encoded digital data depending on whether record density information that represents the record density of the digital data of a record medium represents a first record density or a second record density that is larger than the first record density, respectively; and recording means for recording the error-correction-code encoded digital data on the record medium. - View Dependent Claims (12, 13, 14)
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15. A digital data reproducing apparatus, comprising:
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reading means for reading error-correction-code encoded digital data from a record medium; and error-correction-code decoding means for error-correction-code decoding the error-correction-code encoded data for every block with a first data amount or a second data amount that is larger than the first data amount and outputting digital data depending on whether record density information that represents the record density of the error-correction-code encoded digital data represents a first record density or a second record density that is larger than the first record density, respectively. - View Dependent Claims (16)
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17. A digital data recording method, comprising the steps of:
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error-correction-code encoding digital data for every block with a first data amount or a second data amount that is larger than the first data amount and forming error-correction-code encoded digital data depending on whether record density information that represents the record density of the digital data of a record medium represents a first record density or a second record density that is larger than the first record density, respectively; and recording the error-correction-code encoded digital data on the record medium.
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18. A digital data reproducing method, comprising the steps of:
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reading error-correction-code encoded digital data from a record medium; and error-correction-code decoding the error-correction-code encoded data for every block with a first data amount or a second data amount that is larger than the first data amount and outputting digital data depending on whether record density information that represents the record density of the error-correction-code encoded digital data represents a first record density or a second record density that is larger than the first record density, respectively.
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19. A disc shaped record medium that has a plurality of record tracks and that is rotated at a constant angular velocity when the tracks are accessed, the record medium including:
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first record tracks that record first digital data interleaved with a first interleave length; and second record tracks that record second digital data interleaved with a second interleave length larger than the first interleave length and that is disposed on a more inner peripheral side than the first record tracks.
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20. A disc shaped record medium that has a plurality of record tracks and that is rotated at a constant angular velocity when the tracks are accessed, the record medium including:
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first record tracks that record first digital data error-correction-code encoded for every block with a first data amount; and second record tracks that record second digital data error-correction-code encoded for every block with a second data amount larger than the first data amount and that is disposed on a more inner peripheral side than the first record tracks.
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21. A disc shaped record medium having at least two divided record regions as a first record region and a second record region defined as positions in a radial direction,
wherein the first record region has recorded therein first digital data interleaved with a first interleave length; - and
wherein the second record region has recorded therein second digital data interleaved with a second interleave length larger than the first interleave length and that is disposed on a more inner peripheral side than the first record region.
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22. A disc shaped record medium having at least two divided record regions as a first record region and a second record region defined as positions in a radial direction,
wherein the first record region has recorded therein first digital data error-correction-code encoded for every block with a first data amount; - and
wherein the second record region has recorded therein second digital data error-correction-code encoded for every block with a second data amount larger than the first data amount and that is disposed on a more inner peripheral side than the first record region.
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Specification