Method of synchronously displaying asynchronous transmitted text and audio and video data on mobile terminal
A mobile terminal, audio and video technology, applied in the direction of carrier index/addressing/timing/synchronization, carrier indicating device, telephone communication, etc., can solve the problem of not meeting the practical application standards, not well solving the problem of synchronous playback of text and audio and video, Instability and other issues
Active Publication Date: 2009-09-09
CHINA MOBILE GRP GUANGDONG CO LTD
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Problems solved by technology
[0004] 1. If the traditional subtitle method is used, when the audio and video containing subtitles are converted and played on the mobile phone, due to the small screen, the subtitles are basically blurred and cannot meet the actual application standards;
[0005] 2. If technologies similar to RealText are used, since these technologies are mainly used in the traditional Internet and PC, they do not solve the problem of synchronous playback of text, audio and video in the mobile communication environment;
[0006] 3. Due to the limited computing power and display effect of mobile terminal devices such as mobile phones, subtitle solutions such as traditional DVDs cannot be directly applied to mobile phones;
[0007] 4. Due to the limited and unstable bandwidth of the mobile communication data network, the synchronous transmission of text information and audio and video data will cause the playback to be unsmooth, or the text and audio and video will not be synchronized during playback
Method used
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Embodiment approach
[0041] image 3 It shows a playback process using the ASTP protocol according to an exemplary embodiment of the present invention.
[0042] First, the client initiates an STMM file playback request. Then, the client checks the local storage for the STMM file cache. If yes, load and decode the STMM file into memory space. Otherwise, first download the STMM file to the local storage space of the mobile terminal through the wireless network connection, and then load and decode the STMM file into the memory space. After loading and decoding the STMM file into the memory space, determine the audio and video source URL in the "text synchronization general description information". Next, check whether the audio and video source URL exists. If it exists, perform streaming playback, progressive download playback or download playback according to the type of audio and video source, and simultaneously present the text content according to the STMM control information in the memory wh...
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The invention provides a method of synchronously displaying asynchronous transmitted document and audio and video data on a mobile terminal, which includes the following steps: a mobile medium synchronous text file broadcasting requirement is sent by the mobile terminal, a mobile medium synchronous text file is loaded and decoded into a memory space, an audio and video source URL in the text synchronous universal described information of the mobile medium synchronous text file is determined, displaying is carried out according to the type of the audio and video source, and the text content is synchronously displayed according to the control information of the mobile medium synchronous text in the memory. According to the method of the invention, when the user watches MTV and TV by using a mobile phone, the asynchronous-transmitted text is added to realize the synchronization of the audio data and the video data on the mobile terminal (the mobile phone, PDA, and the like) to enable the clear words and the audio and the video to be perfectly combined and the user to enjoy high-quality mobile medium service by the mobile phone.
Description
technical field [0001] The invention relates to the technical field of data services, in particular to a method for synchronously displaying asynchronously transmitted text and audio and video data on a mobile terminal. Background technique [0002] Along with the development of mobile communication technology, mobile phone is also endowed with more and more functions, except calling, send short message, also can for example listen to music, watch MTV, watch movie on mobile phone. However, in the existing mobile phone audio and video playback technology, the traditional subtitle method is generally used when transmitting audio and video data (that is, the original audio and video containing subtitles are directly converted). When played on the Internet, due to the small screen, these subtitles are basically blurred and cannot meet the practical application standards. [0003] Under the existing and future mobile communication network environment, when using handheld mobile ...
Claims
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Login to View More IPC IPC(8): G11B27/10G11B27/34H04M1/725H04M1/7243
Inventor 徐睿蔡键许杨张鹏黄冲仇贲张惠平
Owner CHINA MOBILE GRP GUANGDONG CO LTD