Recording medium having data structure for managing reproduction of multiple reproduction path video data recorded thereon and recording and reproducing methods and apparatuses
First Claim
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1. An optical disk storing a data structure for managing reproduction by a reproduction apparatus of video data having multiple reproduction paths, comprising:
- one or more management files for managing reproduction of the video data by the reproducing apparatus, the management file being separate from a clip file storing the video data, each clip file being associated with one of the one or more management files, each clip file of the multiple reproduction paths being associated with one of the multiple reproduction paths, the management file storing at least one entry point map associated with one of the multiple reproduction paths, each entry point map identifying a plurality of entry points in the video data for the associated reproduction path, the entry point map mapping an address of an entry point in the video data to a presentation time stamp of the entry point,wherein the entry point map includes path change information for managing changing of reproduction paths by the reproducing apparatus,the path change information having a plurality of fields, each field associated with at least one of the plurality of entry points, andthe path change information includes a field for identifying whether changing reproduction paths is permitted or not in relation to the associated entry point and another field for identifying where changing reproduction path is permitted in relation to the associated entry point, the another field identifying an entry point in a current reproduction path where changing reproduction paths is permitted if the field identifies that changing reproduction paths is permitted.
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Abstract
The recording medium has a data structure for managing reproduction of at least multiple reproduction path video data recorded on the recording medium. One or more management areas of the recording medium store path change information. The path change information indicates where changes in reproducing at least one of the reproduction paths of video data are permitted.
139 Citations
30 Claims
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1. An optical disk storing a data structure for managing reproduction by a reproduction apparatus of video data having multiple reproduction paths, comprising:
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one or more management files for managing reproduction of the video data by the reproducing apparatus, the management file being separate from a clip file storing the video data, each clip file being associated with one of the one or more management files, each clip file of the multiple reproduction paths being associated with one of the multiple reproduction paths, the management file storing at least one entry point map associated with one of the multiple reproduction paths, each entry point map identifying a plurality of entry points in the video data for the associated reproduction path, the entry point map mapping an address of an entry point in the video data to a presentation time stamp of the entry point, wherein the entry point map includes path change information for managing changing of reproduction paths by the reproducing apparatus, the path change information having a plurality of fields, each field associated with at least one of the plurality of entry points, and the path change information includes a field for identifying whether changing reproduction paths is permitted or not in relation to the associated entry point and another field for identifying where changing reproduction path is permitted in relation to the associated entry point, the another field identifying an entry point in a current reproduction path where changing reproduction paths is permitted if the field identifies that changing reproduction paths is permitted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of recording a data structure for managing reproduction of video data having multiple reproduction paths on a recording medium, comprising:
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recording at least one entry point map associated with one of the multiple reproduction paths in one or more management files of the recording medium, each entry point map identifying a plurality of entry points in the video data for the associated reproduction path, the entry point map mapping an address of an entry point in the video data to a presentation time stamp of the entry point, the management file being separate from a clip file for storing the video data, each clip file being associated with one of the one or more management files, each clip file of the multiple reproduction paths being associated with one of the multiple reproduction paths, wherein the entry point map includes path change information having a plurality of fields, each field associated with at least one of the plurality of entry points, and the path change information includes a field for identifying whether changing reproduction paths is permitted or not in relation to the associated entry point, and another field for identifying where changing reproduction paths is permitted in relation to the associated entry point, the another field identifying an entry point in a current reproduction path where changing reproduction paths is permitted if the field identifies that changing reproduction paths is permitted. - View Dependent Claims (12, 13, 14, 15)
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16. A method of reproducing a data structure for managing reproduction of video data having multiple reproduction paths recorded on a recording medium, comprising:
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reproducing management information from one or more management files of the recording medium, the management information including at least one entry point map associated with one of the multiple reproduction paths, each entry point map identifying a plurality of entry points in the video data for the associated reproduction path, the entry point map mapping an address of an entry point in the video data to a presentation time stamp of the entry point, the management file being separate from a clip file for storing the video data, each clip file being associated with one of the one or more management files, each clip file of the multiple reproduction paths being associated with one of the multiple reproduction paths, wherein the entry point map includes path change information having a plurality of fields, each field associated with at least one of the plurality of entry points, and the path change information includes a field for identifying whether changing reproduction paths is permitted or not in relation to the associated entry point, and another field for identifying where changing reproduction paths is permitted in relation to the associated entry point, the another field identifying an entry point in a current reproduction path where changing reproduction paths is permitted if the field identifies that changing reproduction paths is permitted; and reproducing the video data based on the management information, wherein the reproducing step further including changing a reproduction path from the current reproduction path to a requested reproduction path based on the path change information if the changing reproduction path is permitted. - View Dependent Claims (17, 18, 19)
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20. An apparatus for recording a data structure for managing reproduction of video data having multiple reproduction paths on a recording medium, comprising:
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a recording unit configured to record data on the recording medium; and a controller, operably coupled to the recording unit, configured to control the recording unit to record the video data having multiple reproduction paths on the recording medium, the controller configured to control the recording unit to record at least one entry point map associated with one of the multiple reproduction paths in one or more management files of the recording medium, each entry point map identifying a plurality of entry points in the video data for the associated reproduction path, the entry point map mapping an address of an entry point in the video data to a presentation time stamp of the entry point, the management file being separate from a clip file storing the video data, each clip file being associated with one of the one or more management files, each clip file of the multiple reproduction paths being associated with one of the multiple reproduction paths; and wherein the entry point map includes path change information having a plurality of fields, each field associated with at least one of the plurality of entry points, and the path change information includes a field for identifying whether changing reproduction paths is permitted or not in relation to the associated entry point, and another field for identifying where changing reproduction paths is permitted in relation to the associated entry point, the another field identifying an entry point in a current reproduction path where changing reproduction paths is permitted if the field identifies that changing reproduction paths is permitted. - View Dependent Claims (21, 22, 23, 24, 25)
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26. An apparatus for reproducing a data structure for managing reproduction of video data having multiple reproduction paths recorded on a recording medium, comprising:
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a reproducing unit configured to reproduce data recorded on the recording medium; a controller, operably coupled to the reproducing unit, configured to control the reproducing unit to read an entry point map associated with one of the multiple reproduction paths from one or more management files of the recording medium, each entry point map identifying a plurality of entry points in the video data for the associated reproduction path, the entry point map mapping an address of an entry point in the video data to a presentation time stamp of the entry point, the management file being separate from a clip file storing the video data, each clip file being associated with one of the one or more management files, each clip file of the multiple reproduction paths being associated with one of the multiple reproduction paths, wherein the entry point map includes path change information having a plurality of fields, each field associated with at least one of the plurality of entry points, and the path change information includes a field for identifying whether changing reproduction paths is permitted or not in relation to the associated entry point, and another field for identifying where changing reproduction paths is permitted in relation to the associated entry point, the another field identifying an entry point in a current reproduction path where changing reproduction paths is permitted if the field identifies that changing reproduction paths is permitted; and the controller configured to control the reproducing unit to reproduce the video data based on the one of more management files, wherein the controller is further configured to control the reproducing unit to reproduce a requested reproduction path based on the path change information if the changing reproduction path from the current reproduction path to the requested reproduction path is permitted. - View Dependent Claims (27, 28, 29, 30)
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Specification