Image decoding using read/write memory control based on display

Details Image decoding using read/write memory control based on display Image decoding using read/write memory control based on display

1997-01-08

1999-08-31

Tung, Bryan

Television

Bandwidth reduction system

348714, H04N 712, H04N 964

Patent

active

059460369

ABSTRACT:
A coding data is performed in decoding by a stream decoding circuit, an IDCT circuit and an MC circuit. An AGU stores decoding data from the MC circuit to a memory. Regarding the decoding data of a B picture, the AGU writes only the decoding data which are necessary for image display, to a B picture region. Thus, a room occurs in a memory capacity. It is possible to hold the decoding data of the B picture through 2 field periods of time. It is possible to read twice the same decoding data, for display processing. Thus, frame interpolation processing is made possible, and it is possible to obtain a magnified image having high image quality.

REFERENCES:
patent: 5646695 (1997-07-01), Fujiwara

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