Memory utilization for video decoding and display with 3:2 pull-

Details Memory utilization for video decoding and display with 3:2 pull- Memory utilization for video decoding and display with 3:2 pull-

1994-11-04

1997-07-08

Peng, John K.

Television

Stereoscopic

Pseudo

348402, 348409, 348416, 348714, H04N 701, H04N 1102, H04N 964

Patent

active

056466935

ABSTRACT:
A system and method for decoding a video bitstream and displaying the video with 3:2 pull-down using a frame buffer whose size is not sufficient to hold an entire decoded frame. This is accomplished by using the additional time required by the display with 3:2 pull-down to decode a portion of the frame for a second time. The present invention provides memory savings, additional flexibility in decoder design, and reductions in memory controller complexity and power consumption. In the case of MPEG-2 decoders, the present invention allows the implementation of PAL/SECAM main profile at main level decoders with 3:2 pull-down using only a 16 megabit memory.

REFERENCES:
patent: Re31460 (1983-12-01), Dalton et al.
patent: 4435792 (1984-03-01), Becktolsheim
patent: 5343248 (1994-08-01), Fujinami
patent: 5363138 (1994-11-01), Hayashi et al.
patent: 5386233 (1995-01-01), Keith
ISO/IEC JTC1/SC29/WG11, Coding Of Moving Pictures And Associated Audio (May 10, 1994).

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