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Data structure, dispensing device, dispensing method and dispensing program of multimedia files

A multimedia file and data structure technology, which is applied in the field of multimedia file data structure, can solve the problems of complex transformation of content, etc.

Inactive Publication Date: 2004-06-16
YAMAHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the format of the content compatible with the recipient's model differs depending on the recipient's model, so it is very complicated for the user who is the sender of the multimedia content to convert the content according to the recipient's model.

Method used

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  • Data structure, dispensing device, dispensing method and dispensing program of multimedia files
  • Data structure, dispensing device, dispensing method and dispensing program of multimedia files
  • Data structure, dispensing device, dispensing method and dispensing program of multimedia files

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Embodiment Construction

[0021] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0022] 1. Composition of the embodiment

[0023] First, refer to figure 1 The overall structure of a content transformation system applicable to the data structure of a multimedia file and the like according to an embodiment of the present invention will be described.

[0024] figure 1 Among them, the mobile phones (external devices) 2, 4, 6 can communicate with each other and send and receive files through the communication network 8. Here, it is assumed that the mobile phones 2 and 4 are models that can reproduce multimedia files in a data format described later, but the mobile phone 6 is a model that does not support the multimedia files. When a file is transmitted and received between these mobile phones 2, 4, 6, the server 10 serving as a file delivery device temporarily stores the file, and performs processing such as converting the file format as nec...

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Abstract

The present invention provides a data structure of multimedia file for easy management of information for representative icons; wherein, a file is stored with a plurality of objects, which compose the multimedia content by specifying the regeneration of each object; and, the representative content specifying information, which specifies at least one object in the plurality of objects as the object representing the multimedia contents. The server device receives the download request for the multimedia content from the external device to determine if the external device can regenerate the multimedia contents. If the determination result is that the external device cannot regenerate the multimedia content, then based on the representative content specifying information to convert the said multimedia content by the external device into the regenerative representative content file and transmit it; on the other hand, if the determination result is that the external device can regenerate the multimedia content, it transmit the file composing the multimedia content.

Description

technical field [0001] The invention relates to a data structure of multimedia files suitable for distribution and data management of multimedia files, a file distribution method, a file distribution device and a file distribution program. Background technique [0002] A mobile phone or other portable terminal transmits and receives multimedia content composed of various contents such as video data, audio data, and text data to and from other portable terminals through a communication network. Depending on the model of a portable terminal such as a mobile phone, it may not be possible to reproduce such multimedia content. In these cases, the user on the sending side needs to convert the multimedia content to be sent into content such as a still image that can be supported on the receiving side. [0003] Regarding retrieval systems for moving picture data or multimedia content, etc., JP-A-11-232186 A, JP-A-7-23322 A, etc. disclose techniques for extracting still images of re...

Claims

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Application Information

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IPC IPC(8): G06F12/00G06F13/00G06F13/14G06F17/00G06F17/30H04N7/173H04N21/2381H04N21/258H04N21/8547H04N21/8549
CPCG06Q50/10
Inventor 藤岛琢哉山浦敦野口明香音高桥拓弥
Owner YAMAHA CORP