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Data transmission method, device and system

A data transmission method and media data technology, applied in the field of devices and systems, and data transmission methods, can solve the problems of inability to play encrypted audio and video files, heavy workload, and long time consumption, so as to achieve convenient application for customers and achieve simple effects

Active Publication Date: 2013-09-18
LENOVO (BEIJING) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, when the encrypted audio and video files stored in the first terminal are directly copied to the second terminal, if no special encryption and decryption processing is performed on the second terminal, the encrypted audio and video files cannot be played on the second terminal
The existing solution is generally to crack the encryption algorithm at the second terminal, but the cracking work at the second terminal is very complicated, the workload is huge, and it takes a long time, which is not convenient for users to use

Method used

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  • Data transmission method, device and system
  • Data transmission method, device and system
  • Data transmission method, device and system

Examples

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no. 1 example

[0046] see figure 1 , which is a flow chart of the first embodiment of the data transmission method provided by the present invention, including:

[0047] S101. Perform an operation of playing a media file, and perform decoding processing on the media file.

[0048] In this embodiment of the present invention, the media file may specifically be audio data and / or video data. Generally, media files have been encoded and compressed, so it is necessary to decode the media files to obtain decoded media data. Here, the manner of playing the media file operation may specifically include the following two manners:

[0049] (1) Play the media file, decode the media file, and output audio information through the audio output module of the first terminal. That is to say, after decoding the media file, the audio information is played through the audio output module. Here, the audio output module may be a loudspeaker, a loudspeaker, an earphone, and the like.

[0050] Those skilled in...

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Abstract

The invention relates to the field of mobile communication, in particular to a data transmission method, a data transmission device and a data transmission system. The method comprises the steps of executing an operation of playing media files, and decoding the media files; acquiring the decoded media data which corresponds to the media files; modulating the media data, and transmitting the media data to a second terminal through a frequency modulation module, wherein the second terminal receives the modulated media data and demodulates the media data. According to the method provided by the invention, file transmission and file copy between a first terminal and the second terminal can be finished even if a complicated decoding work is not needed to be carried out on the second terminal; and after the media data is demodulated through the second terminal, the playing operation can be carried out, so that an effect of playing encrypted audio / video files on the second terminal can be achieved. The data transmission method, the data transmission device and the data transmission system can be simply realized and are convenient for customers to apply.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a data transmission method, device and system. Background technique [0002] With the development of communication technology, smart phones have become an important communication tool for users. Users can use smartphones to make calls, send and receive emails, and play audio and video files, etc. Among them, playing audio and video files on the smart phone has become an important function of the smart phone. Usually, when the encrypted audio and video files stored in the first terminal are directly copied to the second terminal, if no special encryption and decryption processing is performed on the second terminal, the encrypted audio and video files cannot be played on the second terminal . The existing solution is generally to crack the encryption algorithm at the second terminal, but the cracking work at the second terminal is very complicated, and the workload i...

Claims

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Application Information

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IPC IPC(8): H04M1/725G10L19/00H04N21/436H04N21/439H04N21/4405
Inventor 郭子华朱少峰
Owner LENOVO (BEIJING) CO LTD
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