Patent ID: 9088759
Filing Date: 2015-07-21
Classification: H04N

Abstract:
1. A data control apparatus that restores original video and audio files from backup data which is read from an external recording medium, wherein the external recording medium stores the backup data, the backup data includes first data including only a used portion of material data included in the original video and audio files, second data including only an unused portion of the material data, editing information indicating the used portion of the material data in the original video and audio files, and connection information associating information about positions of the first data and the second data in the original video and audio files with information about positions of the first data and the second data on the external recording medium, the data control apparatus comprising: a format extraction unit operable to separate the backup data which is read from the external recording medium into the first data, the second data, the editing information, and the connection information; a connection information decoder unit operable to decode the separated connection information; and a restoring unit operable to restore the original video and audio files by combining the used portion and the unused portion of the material data included in the first data and the second data in accordance with the decoded connection information.