Abstract: A multimedia data streaming system and a method thereof transmit multimedia data to a receiver by a streaming server through a dynamic streaming process. The multimedia data streaming system includes a converting module and a scheduler module. The scheduler module is used to obtain the bandwidth condition between the streaming server and the receiver dynamically. The scheduler module can request the converting module to convert the original data into streaming pieces with the optimal bit rates in accordance with the bandwidth condition detected. The streaming pieces can be transmitted to the receiver by the streaming server.

Abstract: A file conversion system is capable of transmitting via a network a file provided by a file providing end in a format supported by a file receiving end to the file receiving end. The file conversion system includes a receiving module for receiving the file provided by the file providing end; a conversion module for converting the format of the file provided by the file providing end into a format supported by the file receiving end; a database module for recording a profile of the file receiving end, with the profile including the format supported by the file receiving end; and a transmission module for transmitting the file to the file receiving end via the network. If the format of the file is not supported by the file receiving end, the conversion module may, in accordance with the profile of the file receiving end, convert the format of the file into the format supported by the file receiving end so as to allow the transmission module to transmit the file to the file receiving end.

Abstract: A method for reducing the bit stream is disclosed. The method is used for transmitting multimedia data from a sender to a receiver via a network, wherein the multimedia data comprises a first GOP. The method comprises the steps of: acquiring transmission condition data; decoding the first GOP and converting it into a first color space; converting the first color space into a second color space according to the transmission condition data; and converting the second space into a second GOP according to the transmission condition data, whereby the sender can transmit the second GOP with the reduced bit stream in accordance with the transmission condition data to the receiver.

Abstract: A multimedia data streaming system and a method thereof are disclosed. The multimedia data streaming system is used for transmitting multimedia data to a receiver by means of a streaming server through a dynamic streaming process. The multimedia data streaming system includes a converting module and a scheduler module. The scheduler module is used to obtain the bandwidth condition between the streaming server and the receiver dynamically, it can then request the converting module to convert the original data into streaming chunks with the optimal bit rates in accordance with the bandwidth condition detected; the streaming chunks can then be transmitted to the receiver by means of the streaming server.

Abstract: This invention is to provide a file conversion system capable of transmitting via a network a file provided by a file providing end in a format supported by a file receiving end to the file receiving end, the file conversion system comprising a receiving module for receiving the file provided by the file providing end; a conversion module for converting the format of the file provided by the file providing end into a format supported by the file receiving end; a database module for recording a profile of the file receiving end, the profile comprising the format supported by the file receiving end; and a transmission module for transmitting the file to the file receiving end via the network, wherein if the format of the file is not supported by the file receiving end, the conversion module may, in accordance with the profile of the file receiving end, convert the format of the file into the format supported by the file receiving end so as to allow the transmission module to transmit the file to the file receiv