Method and Apparatus for Encoding/Decoding

• US 20090060029A1
• Filed: 10/13/2006
• Published: 03/05/2009
• Est. Priority Date: 10/13/2005
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Cha, Hyouk Jean, Kim, Tae Hyeon
• Granted Patent: US 8,271,551 B2
• Time in Patent Office: Days
• US Class Current: 375/240.10
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: H04N 21/23412 for generating or manipulating the scene composition of objects, e.g. MPEG-4 objects
• CPC Class Codes: H04N 21/44012 involving rendering scenes according to scene graphs, e.g. MPEG-4 scene graphs
• CPC Class Codes: H04N 21/8153 comprising still images, e.g. texture, background image
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73
• CPC Class Codes: H04N 21/85406 involving a specific file format, e.g. MP4 format

Abstract

The present invention relates to a multimedia data encoding/decoding method and apparatus. The encoding method includes generating a file type area having information on a file format; generating a data area comprising a plurality of media data areas; and generating a media information area comprising a plurality of track areas corresponding to the plurality of media data areas, respectively. According to the present invention, the multimedia data encoding/decoding method and apparatus has an effect of being capable of constructing a slide show by only a small amount of multimedia data. Thus, a time taken to process and transmit the multimedia data can reduce.

Claims

1. An encoding method comprising:

generating a file type area having information on a file format;

generating a data area comprising a plurality of media data areas; and

generating a media information area comprising a plurality of track areas corresponding to the plurality of media data areas, respectively,

wherein the track area comprises timing information for reproducing a plurality of media data comprised in the media data area, and the plurality of media data comprised in the data area are dependent on one timeline.

2. The encoding method of claim 1, comprising:

generating a meta area comprising information on the media data.

3. The encoding method of claim 2, wherein the media information area comprises the plurality of track areas and the meta area.

4. The encoding method of claim 1, wherein the file type area, the media information area, and the data area constitute one file.

5. The encoding method of claim 1, wherein the data area comprises an image data area having a plurality of image data, and the media information area comprises a slide show area corresponding to the image data area.

6. The encoding method of claim 5, wherein the slide show area comprises timing information on the plurality of image data.

7. The encoding method of claim 5, wherein the slide show area comprises all timing information on the plurality of media data.

8. The encoding method of claim 5, wherein the slide show area comprises a media area having the timing information on the image data, and a meta area having meta information on the image data.

9. The encoding method of claim 5, wherein the image data area comprises a plurality of still picture data.

10. The encoding method of claim 1, wherein the plurality of track areas each comprise a media area having the timing information on the media data, and a meta area having meta information on the media data.

11. The encoding method of claim 1, wherein there exists the timing information on each of the plurality of media data.

30. A computer readable recording medium for recording program for executing a method claimed in claim 1 in a computer.

12. A decoding method comprising:

receiving multimedia data having a file type area having information on a file format, a data area, and a media information area, the data area comprising a plurality of media data areas, and the media information area comprising a plurality of track areas corresponding to the plurality of media data areas, respectively; and

reproducing a plurality of media data comprised in the media data area, using timing information comprised in the track area,

wherein the plurality of media data comprised in the data area are dependent on one timeline.

13. The decoding method of claim 12, wherein the media information area comprises a meta area comprising information on the media data.

14. The decoding method of claim 12, wherein the data area comprises an image data area having a plurality of image data, and the media information area comprises a slide show area corresponding to the image data area.

15. The decoding method of claim 14, wherein the slide show area comprises timing information on the plurality of image data.

16. The decoding method of claim 14, wherein the slide show area comprises all timing information on the plurality of media data.

17. The decoding method of claim 14, wherein the slide show area comprises a media area having the timing information on the image data, and a meta area having meta information on the image data.

18. The decoding method of claim 12, wherein there exists the timing information on each of the plurality of media data.

19. An encoding apparatus comprising:

a file type area generator for generating a file type area having information on a file format;

a data area generator for generating a data area comprising a plurality of media data areas; and

a media information area generator for generating a media information area comprising a plurality of track areas corresponding to the plurality of media data areas, respectively,

wherein the track area comprises timing information for reproducing a plurality of media data comprised in the data area, and the plurality of media data comprised in the media data area are dependent on one timeline.

20. The encoding apparatus of claim 19, wherein the media information area generator generates a meta area comprising information on the media data.

21. The encoding apparatus of claim 19, wherein the data area comprises an image data area having a plurality of image data, and the media information area comprises a slide show area corresponding to the image data area.

22. The encoding apparatus of claim 21, wherein the slide show area comprises a media area having the timing information on the image data, and a meta area having meta information on the image data.

23. The encoding apparatus of claim 19, wherein there exists the timing information on each of the plurality of media data.

24. A decoding apparatus comprising:

a data input unit for receiving multimedia data having a file type area having information on a file format, a data area, and a media information area, the data area comprising a plurality of media data areas, and the media information area comprising a plurality of track areas corresponding to the plurality of media data areas, respectively; and

a reproducing unit for reproducing a plurality of media data comprised in the media data area, using timing information comprised in the track area,

wherein the plurality of media data comprised in the data area are dependent on one timeline.

25. The decoding apparatus of claim 24, wherein the media information area comprises a meta area comprising information on the media data, and

the reproducing unit reads media data comprised in the media data area, using position information comprised in the meta area.

26. The decoding apparatus of claim 24, wherein the data area comprises an image data area having a plurality of image data, and the media information area comprises a slide show area corresponding to the image data area.

27. The decoding apparatus of claim 24, wherein there exists the timing information on each of the plurality of media data.

28. A multimedia data structure comprising:

a file type area having information on a file format;

a data area comprising a plurality of media data areas; and

a media information area comprising a plurality of track areas corresponding to the plurality of media data areas, respectively,

wherein the track area comprises timing information for reproducing media data comprised in the media data area.

29. The structure of claim 28, wherein the media information area comprises a meta area comprising information on the media data.