| US 7,529,470 B2 | ||
| Information recording method, information recording medium, and information reproducing method, wherein information is stored on a data recording portion and a management information recording portion | ||
| Hideo Ando, Tokyo (Japan); and Hiroaki Unno, Yokohama (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Kawasaki-shi (Japan) | ||
| Filed on Aug. 22, 2006, as Appl. No. 11/507,585. | ||
| Application 11/507585 is a division of application No. 10/195789, filed on Jul. 16, 2002, granted, now 7,362,953. | ||
| Application 10/195789 is a division of application No. 09/651295, filed on Aug. 30, 2000, granted, now 6,529,681. | ||
| Application 09/651295 is a division of application No. 09/311272, filed on May 14, 1999, granted, now 6,341,196. | ||
| Claims priority of application No. 10-133832 (JP), filed on May 15, 1998. | ||
| Prior Publication US 2006/0280474 A1, Dec. 14, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. H04N 5/91 (2006.01) | ||
| U.S. Cl. 386—95 [386/125; 386/126] | 4 Claims |
| 1. A machine readable information recording medium embodied as a recordable optical disc for access by an optical disc drive,
the information recording medium comprising:
a first area in which a video file is recorded,
the video file including a plurality of extents,
the video file including an unrecorded area and a video object,
the unrecorded area being able to store new video data,
the unrecorded area being managed as at least one of the extents,
the video object having video object units,
one of the video object units containing video packs, audio packs, and one begin pack,
each of the video packs and the audio packs having a predetermined size, and
said begin pack including recording time information on the corresponding video object unit;
a second area in which a management file is recorded,
the management file including video management information,
the video management information having program chain information,
the program chain information containing cell information,
the cell information describing a presentation period within the video object, and
the video file, the management file and a backup file being stored under a DVD-RTR directory; and
a third area in which file management information is recorded,
the file management information including a file entry (FE) and a file identifier descriptor (FID),
the file entry specifying a location of the video file,
the unrecorded area in the video file being changed to a recorded area when the new video data is additionally recorded in
the unrecorded area,
the file entry including a short allocation descriptor having length information on one of the extents and position information
of an extent,
an unallocated area being described by a space table or a space bit map, and
the space bit map being written by a space bit map descriptor which specifies a bit for every logical block,
wherein the video management information is provided to control recording, playing back, or editing the video file by an information
recording/reproducing apparatus, the video file is accessed according to the video management information.
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