Apparatus for hierarchically dividing video signals

Details Apparatus for hierarchically dividing video signals Apparatus for hierarchically dividing video signals

1991-08-26

1992-09-01

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358135, 358136, H04N 712

Patent

active

051444259

ABSTRACT:
A video signal compression system provides compressed video data in groups of frames and divides the compressed video data between high and low priority channels according to a predetermined hierarchy of compressed video codeword types. The fraction of data to be applied to the respective channels is not determined by the ratio of the data handling capacity of the two channels, but rather on a frame by frame basis in accordance with the actual channel capacity remaining for the respective group of frames.

REFERENCES:
patent: 4873577 (1989-10-01), Chamzas
patent: 4933762 (1990-06-01), Guichard et al.
patent: 5055927 (1991-10-01), Keesen et al.
J. Zedepski et al., "Prioritized Packet Transport of VBR CCITT H.261 Format Compressed Video on a CSMA/CD LAN." presented at the Third International Workshop on Packet Video, Morristown, N.J. Mar. 22-23, 1990.

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