Patent ID: 6873625
Filing Date: 2005-03-29
Classification: H04L,H04N

Abstract:
1. A method of streaming video/audio data through a network between a server and a client, the method comprising: a video/audio transmitting step of, in case that the server transmits a video/audio file to the client, converting compressed video/audio data to be transmitted into intermediate data and duplicating the intermediate data into a packet to transmit it to the client; and in case that the client processes the intermediate data transmitted through the network, an intermediate data receiving step of a) analyzing the received packet, when the analyzed result corresponds to a video intermediate data packet, reconstructing the original video data from the video intermediate data duplicated into the packet and then outputting it, and b) when the received packet corresponds to an audio intermediate data packet, converting the audio intermediate data duplicated into the packet into analog voice data and outputting it, wherein the video/audio transmitting step comprises: a first step of, in case that the server transmits the video/audio file to the client, confirming by the server if the compressed file is an audio file, and confirming if the transmission form of the file corresponds to pulse code modulation (PCM) transmission when the file is the audio file; a second step of converting the audio file to be transmitted into PCM data in case of the PCM transmission; a third step of converting the audio file to be transmitted into adaptive differential pulse code modulation (ADPCM) data when it is confirmed that its transmission form does not correspond to PCM transmission; a fourth step of, when the compressed file corresponds to a video file, confirming if its transmission form corresponds to DC transmission; a fifth step of converting the compressed video file into discrete cosine (DC) data in case of the DC transmission; a sixth step of converting the compressed video file into YUV data when it is confirmed that its transmission form does not correspond to DC transmission, the YUV data being video signal component data; and a seventh step of transmitting the converted audio/video intermediate data to the network.