Recording medium and method and apparatus for reproducing and recording text subtitle streams
First Claim
1. A computer readable medium storing a data structure for reproducing text subtitle streams, the computer readable medium comprising:
- a first data area storing at least one PlayList file, each PlayList file containing a set of PlayItems and at least one SubPlayItem, each PlayItem being configured to reproduce at least one main AV stream, each SubPlayItem including a multi-clip-entries field indicating whether a multi-clip-entries structure is present or not present, the SubPlayItem being configured to reproduce at least one text subtitle stream, each PlayList file further containing synchronization information which includes a field indicating a presentation start time of the SubPlayItem within a playing time interval of one of the set of PlayItems; and
a second data area storing the at least one main AV stream and the at least one text subtitle stream.
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Accused Products
Abstract
A recording medium and method and apparatus for reproducing and recording text subtitle streams are disclosed. A PlayList file contains a set of PlayItems and a SubPlayItem. Each PlayItem is configured to reproduce at least one main AV stream, and the SubPlayItem is configured to reproduce at least one text subtitle stream. The PlayList file further contains synchronization information which indicates a presentation start time of the SubPlayItem within a playing time interval of one of the set of PlayItems. The PlayList file, main AV stream, and text subtitle streams are recorded on a recording medium. Each text subtitle stream includes a plurality of dialog presentation segments, each of which includes at least one region of dialog text.
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Citations
34 Claims
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1. A computer readable medium storing a data structure for reproducing text subtitle streams, the computer readable medium comprising:
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a first data area storing at least one PlayList file, each PlayList file containing a set of PlayItems and at least one SubPlayItem, each PlayItem being configured to reproduce at least one main AV stream, each SubPlayItem including a multi-clip-entries field indicating whether a multi-clip-entries structure is present or not present, the SubPlayItem being configured to reproduce at least one text subtitle stream, each PlayList file further containing synchronization information which includes a field indicating a presentation start time of the SubPlayItem within a playing time interval of one of the set of PlayItems; and a second data area storing the at least one main AV stream and the at least one text subtitle stream. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of reproducing text subtitle streams, the method comprising:
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reading a PlayList file recorded on a computer readable medium; reading a set of PlayItems and at least one SubPlayItem included in the PlayList file, each PlayItem being configured to reproduce at least one main AV stream recorded on the computer readable medium, each SubPlayItem being configured to reproduce at least one text subtitle stream recorded on the computer readable medium, each SubPlayItem including a multi-clip-entries field indicating whether a multi-clip-entries structure is present or not present; reading synchronization information included in the SubPlayItem, the synchronization information indicating a presentation start time of the SubPlayItem within a playing time interval of one of the set of PlayItems; and synchronizing presentation of the SubPlayItem with presentation of the one of the set of PlayItems. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An apparatus for reproducing text subtitle streams, the apparatus comprising:
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a pickup configured to reproduce data recorded on a computer readable medium; and a controller configured to control the pickup to reproduce at least one PlayList file recorded on the computer readable medium, each PlayList file containing a set of PlayItems and at least one SubPlayItem, each PlayItem being configured to reproduce at least one main AV stream, each SubPlayItem including a multi-clip-entries field indicating whether a multi-clip-entries structure is present or not present, the SubPlayItem being configured to reproduce at least one text subtitle stream, the SubPlayItem including synchronization information which indicates a presentation start time of the SubPlayItem within a playing time interval of one of the set of PlayItems. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A method of recording text subtitle streams, the method comprising:
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recording at least one PlayList file, each PlayList file containing a set of PlayItems and at least one SubPlayItem, each PlayItem being configured to indicate at least one main AV stream, each SubPlayItem being configured to indicate at least one text subtitle stream, each SubPlayItem including a multi-clip-entries field indicating whether a multi-clip-entries structure is present or not present, the PlayList file further containing synchronization information which indicates a presentation start time of the SubPlayItem within a playing time interval of one of the set of PlayItems; and recording the at least one main AV stream and the at least one text subtitle stream. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. An apparatus for recording text subtitle streams, the apparatus comprising:
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a pickup configured to record data on a computer readable medium; and a controller configured to control the pickup to record at least one PlayList file, each PlayList file containing a set of PlayItems and at least one SubPlayItem, each PlayItem being configured to indicate at least one main AV stream, each SubPlayItem including a multi-clip-entries field indicating whether of multi-clip entries structure is present or not present, the SubPlayItem being configured to indicate at least one text subtitle stream, the PlayList file further containing synchronization information which indicates a presentation start time of the SubPlayItem within a playing time interval of one of the set of PlayItems. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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Specification