Thin Multimedia, Inc.

Hyuck Yoo

Jin-Hwan Jeong

A method of streaming video data includes providing a plurality of frames to be transmitted from a video transmitter system to a video receiver system. The plurality of frames are categorized into a reference frame and a prediction frame. The reference frame is encoded for transmission to the video receiver system using a zero run coding method. The encoded reference frame is transmitted to the video receiver system. The prediction frame is divided into a plurality of blocks. The plurality of blocks are examined to determine whether any of them needed to be transmitted to reproduce the prediction frame of acceptable quality at the video receiver system. Only the blocks that have been determined necessary to reproduce the prediction frame of acceptable quality at the video receiver system are transmitted to the video receiver system.

Method and apparatus for streaming video data

There is provided an intermediate data based video/audio streaming method in which, in the transmission of video/audio data, a server transmits the video/audio data in the form of intermediate data and a client receives and directly processes it without using an additional decompression apparatus, allowing easy video/audio data transfer and simplifying the structure of the client system. The method includes: 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 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, 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.

Intermediate data based video/audio streaming method

There is provided an apparatus and method for streaming MPEG-1 data in which, when the MPEG-1 data is transmitted through the network, the MPEG-1 data is converted into intermediate data, a server transfers the intermediate data in the form of packet with synchronizing video intermediate data and audio intermediate data with each other, thereby allowing a client to be able to receive and process the intermediate data with a simple conversion. The apparatus includes: an MPEG-1 system stream decoder for decoding the system stream of an MPEG-1 file; a YUV data generator for converting a videos stream transmitted from the MPEG-1 system stream decoder into YUV data as intermediate data; a PCM data generator for converting an audio stream transmitted from the MPEG-1 system stream decoder into PCM data; and an MPEG-1 intermediate data server for synchronizing the YUV data and PCM data, respectively generated by the YUV data generator and PCM data generator, with a YUV PTS and PCM PTS obtained from the MPEG-1 system stream decoder and a system clock, to transmit them to the client.

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San Jose, CA, United States of America

Hyuck Yoo