Television – Bandwidth reduction system – Data rate reduction
Patent
1995-03-15
1997-03-11
Tran, Thai Q.
Television
Bandwidth reduction system
Data rate reduction
348390, 348399, 348405, 348438, H04N 752, H04N 750
Patent
active
056106602
ABSTRACT:
For an image data such as a motion picture image data composed of three hierarchical layers formed of slices, each of which having a plurality of macroblocks and one picture having a plurality of the slices, a synchronous word is adaptively inserted to each header of the slices and the picture according to a characteristic of the image data. It is possible to effectively perform the localization of errors. A synchronous word multiplexing system for coded image data inputs and codes image data, converts the coded data to a variable-length coded data, divides the image coded data into a plurality of data signals, and multiplies a synchronous word per a predetermined divided unit. Further, a timing signal for multiplexing synchronous words to the image coded data is generated based on a characteristic data, and the timing of multiplexing synchronous words is controlled based on characteristics of the image data.
REFERENCES:
patent: 5410355 (1995-04-01), Kolczynski
patent: 5467139 (1995-11-01), Lankford
patent: 5521927 (1996-05-01), Kim et al.
patent: 5537409 (1996-07-01), Moriyama et al.
Hamano Takashi
Matsuda Kiichi
Sakai Kiyoshi
Fujitsu Limited
Snow Frank
Tran Thai Q.
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