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

• US 20040047589A1
• Filed: 05/23/2003
• Published: 03/11/2004
• Est. Priority Date: 05/19/1999
• Status: Active Grant

• Current Assignee: Kwang S.U. Kim
• Original Assignee: Kwang S.U. Kim
• Inventors: Kim, Kwang Su
• Granted Patent: US 7,493,018 B2
• Time in Patent Office: Days
• US Class Current: 386/46
• CPC Class Codes: G09B 19/06 Foreign languages with audible presentation of material to be studied G09B5/04
• CPC Class Codes: G11B 19/025 'Virtual' control panels, e.g. Graphical User Interface [GUI]
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 27/007 reproducing continuously a part of the information, i.e. repeating
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/11 by using information not detectable on the record carrier
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8042 involving data reduction
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal
• CPC Class Codes: H04N 9/8227 the additional signal being at least another television signal

Abstract

This invention relates to a method of conducting search of moving picture data stream and repeating playback of a data stream section based on the caption information, which is displayed with moving pictures, and a reproduction apparatus using such method. The present method creates and stores link information between caption data and position of moving picture stream which is reproduced concurrently with the caption data; displays a part of the caption data during playback; searches for a moving picture data section, which is concurrently presented with a particular caption chosen from the displayed caption data by a viewer, based on the created link information; and repeats playback of the found moving picture data section. This method is very useful to language practice because it can repeat to play a video section containing captions that a viewer wants to listen repeatedly.

Claims

1. A method of creating caption-based search information from moving picture data of a storage medium and repeating playback of moving picture data, comprising the steps of:

(a) searching for caption information on a storage medium where video, audio, and caption data are recorded in interleaved manner;

(b) obtaining the location of moving picture data to be concurrently reproduced with each piece of the caption information found in said step (a);

(c) creating and storing a caption search table where each piece of caption information and the obtained location of the corresponding moving picture data are linked;

(d) receiving a request of repetitive reproduction from a user during playback of the storage medium; and

(e) searching the stored caption search table for a target caption of which displaying time includes the point of repetitive reproduction requested time, and repeating reproduction of a moving picture data interval during which the target caption is displayed together.

2. The method of claim 1, wherein said step (c) further writes respective serial numbers of the pieces of caption information in the caption search table.

3. The method of claim 2, further comprising the step of searching the stored caption search table for another caption of which serial number is entered from a user during repetitive reproduction of the moving picture data interval, and repeating to reproduce another moving picture data interval during which said another caption is displayed together.

4. The method of claim 1, wherein said step (c) comprises the steps of:

converting bit-mapped data of each piece of the caption information into text data consisting of characters; and

storing each pair of the text data and the location of the moving picture data in a table structure, the text data and the location of the corresponding moving picture data in a pair having same index values in the table structure.

5. The method of claim 1, further comprising the steps of:

(f) receiving a movement request to another caption before or after the repeatedly-played caption from a user during repetitive reproduction of the moving picture data interval; and

(g) searching the stored caption search table for said another caption, and repeating to reproduce another moving picture data interval during which said another caption is displayed together.

6. A method of creating caption-based search information from moving picture data of a storage medium and repeating playback of moving picture data, comprising the steps of:

(a) searching for caption information on a storage medium where video, audio, and caption data are recorded in interleaved manner;

(b) obtaining the location of moving picture data to be concurrently reproduced with each piece of the caption information found in said step (a);

(c) creating and storing a caption search table where each piece of caption information and the obtained location of the corresponding moving picture data are linked;

(d) displaying some pieces of caption information which are selected from the stored caption search table;

(e) receiving selection of captions that are included in the displayed caption information; and

(f) searching for a moving picture data interval with reference to the stored caption search table and repeating to reproduce the moving picture data interval that is determined by a start time of a first caption of the selected captions and an end time of a last caption of the selected captions.

7. A method of creating caption-based search information from moving picture data of a storage medium and repeating playback of moving picture data, comprising the steps of:

(a) searching for caption information on a storage medium where video, audio, and caption data are recorded in interleaved manner;

(b) obtaining the location of moving picture data to be concurrently reproduced with each piece of the caption information found in said step (a);

(c) creating and storing a caption search table where each piece of caption information, serial number thereof and the obtained location of the corresponding moving picture data are linked;

(d) receiving a start and an end serial number of caption during playback of the storage medium; and

(f) searching for a moving picture data interval with reference to the stored caption search table and repeating to reproduce the moving picture data interval that is determined by a start time of a first caption identified by the start serial number and an end time of a second caption identified by the end serial number.

8. An apparatus for reproducing a storage medium containing moving picture data, comprising:

means for driving the storage medium;

a first controlling means for searching the driven storage medium for caption information and creating a caption search table where each piece of caption information and a location of moving picture data to be concurrently reproduced with each piece are linked;

means for storing the created caption search table;

means for receiving a caption selection from a user and displaying a part of caption information selected from the caption search table; and

a second controlling means for identifying which caption information is chosen by a viewer and controlling the driving means with reference to the stored caption search table to repeat reproduction of a moving picture data interval during which the identified caption information is displayed together.