Patent ID: 7257318
Filing Date: 2007-08-14
Classification: G11B,H04N

Abstract:
1. An information recording/reproducing apparatus for recording and reproducing video information, wherein said video information is adapted to an information processing data format that is defined to include (1) video packs of which data is configured by a sequence header containing first aspect ratio information and compressed video data, each of the video packs having a packet header, (2) audio packs of which data is audio information, (3) unit control information packs as managing information including second aspect ratio information, (4) a video object unit including a unit control information pack at the head and including the video packs and audio packs continuing to the unit control information pack, (5) and a video object including the video object unit, the apparatus comprising: an encoder including a video encoder, an audio encoder and a formatter and configured to assemble the video packs, the audio packs and the video object unit; and a controller including a sequence header processing section and an aspect ratio information processing section, and configured to coordinate content of the aspect ratio information in the video object unit, by detecting a third aspect ratio information from the input source, changing the content of the second aspect ratio information in a unit control information pack to the corresponding content with the detected third aspect ratio information, and changing the content of first aspect ratio information in the sequence header in the video packs belonging to the video object unit.