Dematrixing processor for MPEG-2 multichannel audio decoder

Details Dematrixing processor for MPEG-2 multichannel audio decoder Dematrixing processor for MPEG-2 multichannel audio decoder

1996-09-24

2000-02-29

Harvey, Minsun Oh

Data processing: generic control systems or specific application

Specific application, apparatus or process

Digital audio data processing system

704500, G06F 1700

Patent

active

060320818

ABSTRACT:
A dematrixing processor for an MPEG-2 multichannel audio decoder, which is capable of performing a decoding matrix process with respect to five compositely decoded signals to restore them to their original status. To this end, the dematrixing processor comprises an arithmetic/control logic unit for performing a dematrixing operation with respect to the five compositely decoded signals to restore them to their original status, and an IIR filter for low pass filtering an output signal from the arithmetic/control logic unit and providing the low pass filtered result to the arithmetic/control logic unit.

REFERENCES:
patent: 5463424 (1995-10-01), Dressler
Sung-Chul Han et al, "An ASIC Implementation of the MPEG-2 Audio Decoder", IEE Transaction on Consumer Electronics, vol. 42, No. 3, , pp540-545, Aug. 1996.

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