Method of transmitting compressed information to minimize buffer

Details Method of transmitting compressed information to minimize buffer Method of transmitting compressed information to minimize buffer

1997-01-03

2000-01-04

Lee, Michael H.

Television

Bandwidth reduction system

Data rate reduction

348 17, 395114, H04N 730

Patent

active

060115904

ABSTRACT:
A system and method for transmitting blocks of compressed data in an ATM network is disclosed. Compressed data blocks representing a video are labeled prior to transmission with the amount of data in each block and information regarding the compression ratio of each block and the time into the video at which the block displays. A server in the system first determines the maximum amount of data that can be transmitted to the receiver's buffer and the channel between the server and receiver. Using the data block labels, the server transmits the maximum amount of data. Then, to keep the channel and buffer full of data as the receiver starts to display video, the server paces the transmission of the rest of the data. By using the label on each block of data, the server sends each block in the standard amount of time it takes to display the frame or frames represented by every block, but delayed by an amount proportional to the compression ratio for the particular block.

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Reibman, A.R. et al.: "Constraints on Variable Bit-Rate Video for ATM Networks"; IEEE Transactions on Circuits and Systems For Video Technology, vol. 2, No. 4, Dec. 1, 1992, pp. 361-372.

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