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Optical disc for which a sub-picture can be favorably superimposed on a main image and a disc reproduction apparatus and a disc reproduction method for the disc

  • US 6,393,202 B1
  • Filed: 05/13/1999
  • Issued: 05/21/2002
  • Est. Priority Date: 05/09/1996
  • Status: Expired due to Term
First Claim
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1. An optical disc comprising:

  • a stream area for storing a plurality of video objects including at least one set of video data and a plurality of sets of sub-picture data to be reproduced with the set of video data selectively; and

    a control area for storing a set of management information for controlling reproduction of data on the disc wherein;

    the set of sub-picture data includes a set of image data and a set of coordinate information indicating a display position of the set of image data; and

    the set of management information includes a set of mapping information indicating pairs of a set of display mode information and a set of the sub-picture indicating information, and a set of mapping information corresponding to the video object; and

    the set of display mode information indicates one of a plurality of display methods when each frame of the video data is displayed at one of a plurality of aspect ratios; and

    the set of sub-picture indicating information indicates a set of sub-picture data, out of a plurality of sets of sub-picture data in the same video object which includes a set of coordinate information which coincides with one of the display methods indicated by the set of display mode information.

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