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04/05/07 - USPTO Class 709 | 41 views | #20070078954 | Prev - Next | About this Page

Apparatus and method for providing high speed download service of multimedia contents

Title: Apparatus and method for providing high speed download service of multimedia contents

Related Patent Categories: Electrical Computers And Digital Processing Systems: Multicomputer Data Transferring, Remote Data Accessing, Accessing A Remote Server

Brief Patent Description - Full Patent Description - Patent Claims

The Patent Description & Claims data below is from USPTO Patent Application 20070078954, Apparatus and method for providing high speed download service of multimedia contents.

1. An apparatus for downloading a multimedia file, comprising: a file converter configured to convert a larger multimedia file into a smaller multimedia file by deleting prescribed media information based on a media format contained in the larger file.

2. The apparatus of claim 1, wherein the file converter converts the larger file into the smaller file by deleting multi bit-rate media not corresponding to a selected bit rate or by deleting enhancement layer video.

3. The apparatus of claim 1, wherein a format of the media comprises: a format containing multi bit-rate media; and a format containing enhancement layer video.

4. The apparatus of claim 1, wherein if there is multi bit-rate media in the larger file, the file converter deletes tracks of a `moov` part and media data of a `mdat` part except for a selected bit rate and adjusts a value of a track header box in the `moov` part.

5. The apparatus of claim 4, wherein adjustment of the track header box value is performed so an alternate_group value indicating alikeness of media data content is set to `0`, a chunk_offset value indicating a spatial-position of non-deleted media data is adjusted, and a hint track is deleted.

6. The apparatus of claim 1, wherein if there is an enhancement layer video in the larger file, the file converter deletes tracks of a `moov` part and media data of a `mdat` part related to the enhancement layer video and adjusts a value of the track header box of `moov` part.

7. The apparatus of claim 6, wherein adjustment of the track header box value is performed so a chunk_offset value indicating a spatial position of non-deleted media data is adjusted, and a hint track is deleted.

8. A method for downloading a multimedia file, comprising: converting a larger multimedia file into a smaller multimedia file by deleting prescribed media information based on a media format contained in the larger multimedia file.

9. The method of claim 8, wherein converting the larger file into the smaller file is performed by deleting multi bit-rate media not corresponding to a selected bit rate or by deleting enhancement layer video.

10. The method of claim 8, further comprising: receiving a download service request for the larger multimedia file; and transmitting the smaller file to a terminal after converting the larger file into the smaller file.

11. The method of claim 7, wherein converting the larger file into a smaller file comprises: checking a media format in the larger multimedia file; deleting the prescribed media information; and adjusting a track header box value for the deleted media information.

12. The method of claim 11, wherein checking the media format comprises: determining whether a multi bit-rate media is contained therein; and determining whether an enhancement layer video is contained therein.

13. The method of claim 8, wherein converting the larger file into the smaller file, comprises: deleting tracks of `moov` part and media data of an `mdat` part except for a bit rate selected by a user; and deleting tracks of a `moov` part and media data of an `mdat` part related to enhancement layer video.

14. The method of claim 11, wherein adjusting the track header box value comprises: adjusting a chunk_offset value indicating a spatial position of non-deleted media data.

15. The method of claim 11, wherein adjusting the track header box value comprises: setting an alternate_group value indicating alikeness of the media data to `0`.

16. The method of claim 8, wherein converting the larger file into the smaller file comprises: deleting a hint track indicating a streaming service.

Brief Patent Description - Full Patent Description - Patent Claims

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Previous Patent Application:
System and method for mobile retrieval of electronic content for separate delivery
Next Patent Application:
User interface widget unit sharing for application user interface distribution
Industry Class:
Electrical computers and digital processing systems: multicomputer data transferring or plural processor synchronization

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