Decoding system for motion picture data

Details Decoding system for motion picture data Decoding system for motion picture data

1996-10-30

1999-10-19

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348384, H04N 712

Patent

active

059697636

ABSTRACT:
A motion picture data decoding system extracts motion picture data from transmitted MPEG data and decodes the extracted motion picture data. A multi-media communication terminal includes a data buffer portion storing the extracted motion picture data per predetermined data unit, the data buffer portion having a capacity of storing a plurality sets of the data unit, motion picture data being accumulated in the data buffer per data unit, and motion picture data being taken from the data buffer portion per data unit and decoded by said decoding portion. In concrete, when the amount of the motion picture data transmitted per data unit and sequentially accumulated in the data buffer exceeds the threshold value and amount of the motion picture data accumulated in the data buffer and being sequentially decoded per data unit, is reduced across the threshold value, to issue a demand for transmission of next data unit for monitoring the data buffer portions and making the decoding process efficient. By this, even when transmission efficiency is fluctuated due to load or go forth on a CPU, the motion picture can be smoothly reproduced and displayed.

REFERENCES:
patent: 5414455 (1995-05-01), Hooper et al.
patent: 5521630 (1996-05-01), Chen et al.
patent: 5550577 (1996-08-01), Verbiest et al.
patent: 5606359 (1997-02-01), Youden et al.

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