Reproduction device and reproduction method, program and program storage medium, data distribution system, data structure, and method for manufacturing recording medium
First Claim
1. A reproducing apparatus for acquiring a first data group and a second data group, and reproducing an AV stream using the acquired first and second data groups, comprising:
- detecting means for detecting a file system of the first data group, and virtual file system generating means for generating a virtual file system containing at least a portion of each of the first data group and the second data group, based on the file system of the first data group detected by the detecting means, and attribute information containing first information indicating a recording position of the second data group and second information indicating a path in the virtual file system of the second data group.
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Abstract
The present invention relates to a reproducing apparatus, a reproducing method, a program, a program storage medium, a data delivery system, a data structure, and a manufacturing method of a recording medium for easily handling a content file recorded on a disk and an update file recorded on a local storage. Downloaded data can be handled with a file having a path name and a file name on the local storage being different from a file having a path name and a file name on a virtual file system based on a path name specified by an src_file_name field of and a path name specified by a dst_file_name field of a manifest ( ) section. The present invention is applicable to reproducing apparatuses.
40 Citations
30 Claims
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1. A reproducing apparatus for acquiring a first data group and a second data group, and reproducing an AV stream using the acquired first and second data groups, comprising:
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detecting means for detecting a file system of the first data group, and virtual file system generating means for generating a virtual file system containing at least a portion of each of the first data group and the second data group, based on the file system of the first data group detected by the detecting means, and attribute information containing first information indicating a recording position of the second data group and second information indicating a path in the virtual file system of the second data group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A reproducing method of a reproducing apparatus for reproducing an AV stream using a first data group and a second data group, comprising steps of:
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detecting a file system of the first data group, acquiring attribute information containing first information indicating a recording position of the second data group and second information indicating a path in a virtual file system of the second data group, and generating the virtual file system containing at least a portion of each of the first data group and the second data group, based on the detected file system of the first data group and the acquired attribute information. - View Dependent Claims (21)
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22. A program for causing a computer to reproduce an AV stream using a first data group and a second data group, comprising steps of:
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detecting a file system of the first data group, acquiring attribute information containing first information indicating a recording position of the second data group and second information indicating a path in a virtual file system of the second data group, and generating the virtual file system containing at least a portion of each of the first data group and the second data group, based on the detected file system of the first data group and the acquired attribute information. - View Dependent Claims (23)
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24. A data structure of third data to be supplied to a reproducing apparatus so that first data and second data supplied to the reproducing apparatus are reproduced with the first and second data associated with each other, comprising:
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first information indicating a path in a file system of a recording section storing the first data in the reproducing apparatus, and second information indicating a path of the first data in a virtual file system of the reproducing apparatus, the virtual file system including at least a portion of each of the first data and the second data.
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25. A manufacturing method of a recording medium, the recording medium storing third data to be supplied to a reproducing apparatus so that first data and second data supplied to the reproducing apparatus are reproduced with the first and second data associated with each other, comprising steps of:
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generating data having a data structure including first information indicating a path in a file system of a recording section storing the first data in the reproducing apparatus, second information indicating a path of the first data in a virtual file system of the reproducing apparatus, the virtual file system including at least a portion of each of the first data and the second data, and recording the generated data onto the recording medium.
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26. A reproducing apparatus for reproducing an AV stream using a first data group and a second data group, comprising:
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first acquisition means for acquiring the first data group, second acquisition means for acquiring the second data group that is to be reproduced along with the first data group, storage means for storing the second data group acquired by the second acquisition means, extracting means for extracting, from the second data group stored on the storage means, first information indicating a path in the second data group in a file system of the storage means and second information indicating a path in a virtual file system of the second data group, detecting means for detecting a file system of the first data group, virtual file system generating means for generating the virtual file system containing at least a portion of each of the first data group and the second data group, based on the file system of the first data group detected by the detecting means, and the first information and the second information extracted by the extracting means, and reproducing means for reproducing the AV stream by reading the acquired first data group and second data group based on the virtual file system.
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27. A reproducing method of a reproducing apparatus for reproducing an AV stream using a first data group and a second data group, comprising steps of:
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acquiring the second data group along with the first data group, storing the acquired second data group onto a storage section, extracting, from the second data group stored on the storage section, first information indicating a path in the second data group in a file system of the storage section and second information indicating a path in a virtual file system of the second data group, detecting a file system of the first data group, generating the virtual file system containing at least a portion of each of the first data group and the second data group, based on the detected file system of the first data group and the extracted first information and second information, and reproducing the AV stream by reading the first data group and the second data group based on the virtual file system.
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28. A program for causing a computer to reproduce an AV stream using a first data group and a second data group, comprising steps of:
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acquiring the second data group along with the first data group, storing the acquired second data group onto a storage section, extracting, from the second data group stored on the storage section, first information indicating a path in the second data group in a file system of the storage section and second information indicating a path in a virtual file system of the second data group, detecting a file system of the first data group, generating the virtual file system containing at least a portion of each of the first data group and the second data group, based on the detected file system of the first data group and the extracted first information and second information, and reproducing the AV stream by reading the first data group and the second data group based on the virtual file system. - View Dependent Claims (29)
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30. A data delivery system comprising:
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a reproducing apparatus for reproducing an AV stream based on information recorded on a removable recording medium, and a data delivery apparatus for delivering data to the reproducing apparatus, wherein the reproducing apparatus includes;
detecting means for detecting a file system of a first data group recorded on the recording medium, data acquisition means for acquiring a second data group delivered from the data delivery apparatus, first storage means for storing the second data group acquired by the data acquisition means, and virtual file system generating means for generating a virtual file system containing at least a portion of each of the first data group and the second data group, based on the file system of the first data group detected by the detecting means, and attribute information containing first information indicating a path in a file system of the second data group on the storage means and second information indicating a path in the virtual file system of the second data group, and wherein the data deliver apparatus includes;
second storage means for storing a plurality of second data groups, schedule management means for managing a delivery schedule of the second data group to the reproducing apparatus, and selecting means for selecting any of the plurality second data groups deliverable to the reproducing apparatus from among the plurality second data groups stored on the second storage means, based on the schedule managed by the schedule management means.
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Specification