Method for creating caption-based search information of moving picture data, searching moving picture data based on such information, and reproduction apparatus using said method

A method of performing caption-based search for moving picture data of a moving picture data set of a storage medium, comprising the steps of:

• (a) checking if link information including caption information and location identifiable information of corresponding moving picture data for the storage medium is stored in a writable medium other than the storage medium, the storage medium having no location link information between moving picture data and caption information;
• (b) searching a moving picture data set recorded on the storage medium for data including caption information if link information for the storage medium is not stored, a plurality of pieces of caption information being interleaved in the moving picture data set;
• (c) creating and storing link information including said caption information and location identifiable information of moving picture data to be reproduced concurrently with the caption information in the writable medium;
• (d) displaying part of the stored caption information;
• (e) searching the created link information for the location of moving picture data, which is correspondent to a particular caption information chosen by a viewer from a list of caption information displayed on a screen;
• and
• (f) resuming reproduction of moving picture data of the storage medium from the location of moving picture data discovered by step (e).

A method of performing caption-based search for moving picture data of a moving picture data set of a storage medium, comprising the steps of:

• (a) checking if link information including caption information and location identifiable information of corresponding moving picture data for a storage medium is stored in a writable medium other than the storage medium, the storage medium having no location link information between moving picture data and caption information;
• (b) searching a moving picture data set recorded on a storage medium for data including caption information if link information for the storage medium is not stored, a plurality of pieces of caption information being interleaved in the moving picture data set, and creating and storing link information including said caption information and location identifiable information of moving picture data to be reproduced concurrently with the caption information in the writable medium;
• (c) detecting a unique ID information of a newly-placed storage medium;
• (d) searching said another storage medium for link information including caption information and location identifiable information of moving picture data for the newly-placed storage medium, the link information being associated with the detected unique ID information;
• and
• (e) moving the reproduction location on the newly-placed storage medium based on where a caption information chosen in the link information discovered by said step (d) is located.

An apparatus for reproducing moving picture data of a storage medium, comprising:

• means for moving a reproduction position on the storage medium;
• a first controlling means for checking if link information including caption information and location identifiable information of corresponding moving picture data for a storage medium is stored in a writable medium other than the storage medium, and for searching a moving picture data set of the storage medium for data including caption information and creating link information including caption information and location identifiable information of moving picture data which are concurrently reproduced with the caption information if link information for the storage medium is not stored, a plurality of pieces of caption information being interleaved in the moving picture data set, the storage medium having no location link information between moving picture data and caption information;
• means for storing the created link information in the writable medium;
• means for displaying part of caption information which are selected from the created link information;
• and
• a second controlling means for detecting which caption information is chosen by a viewer and controlling the driving means to move the reproduction position to the location of moving picture data corresponding to the detected caption information in the stored link information.