Decompression of MPEG compressed data in a computer system

Details Decompression of MPEG compressed data in a computer system Decompression of MPEG compressed data in a computer system

1995-06-12

1998-07-07

Boudreau, Leo H.

Image analysis

Image compression or coding

Including details of decompression

382234, 382246, 348461, 358432, 358433, 395162, 395412, 395439, G06K 936, G06K 946

Patent

active

057780960

ABSTRACT:
MPEG compressed data is decompressed in a computer system by sharing computational decompression tasks between the computer system host microprocessor, the graphics accelerator, and a dedicated MPEG processor in order to make best use of resources in the computer system. Thus the dedicated MPEG processor is of minimum capability and hence advantageously minimum cost. The host microprocessor is used to decompress the MPEG upper data layers. The more powerful the host microprocessor, the more upper data layers it decompresses. The remainder of the decompression (lower data layers) is performed by the MPEG dedicated processor and/or the graphics accelerator.

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patent: 5394534 (1995-02-01), Kulakowski et al.
patent: 5493339 (1996-02-01), Birch et al.
Foley, P.: "The Mpact Media Processor Redefines The Multimedia PC", IEEE Comput. Soc. Press, USA, pp. 311-318, XP000577494, proceedings of Compcon '96.
Gruger, K., et al.: MPEG-1 Low Cost Encoder Solution, Proceedings of the SPIE--The International Society for Optical Engineering, 1995, USA, pp. 41-51, XP000577418, Advanced Image and Video Communications and Storage Technologies, Amsterdam, Netherlands, 20-23 Mar. 1995.

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