Bit stream parsing apparatus for audio decoder using normalizing

Details Bit stream parsing apparatus for audio decoder using normalizing Bit stream parsing apparatus for audio decoder using normalizing

1997-12-24

1999-11-16

Tokar, Michael

Coded data generation or conversion

Digital code to digital code converters

To or from packed format

341 67, H03M 700, H03M 740

Patent

active

059865881

ABSTRACT:
A bit stream parsing apparatus for an audio decoder includes a register unit for storing therein predetermined bits of data stream, a normalizing barrel shifter for shifting the data stream stored in the register unit by a predetermined number of bits, a mask gate unit for masking the number of bits which are to be sampled among the data outputted from the normalizing barrel shifter, and an accumulator for accumulating an output value of the mask gate unit. The apparatus employs a load and parallel shift technique and enables an N-bit stream to be sampled in a single clock cycle, thereby accomplishing a speedy operation.

REFERENCES:
patent: 5297207 (1994-03-01), Degele
patent: 5557271 (1996-09-01), Rim et al.
patent: 5619200 (1997-04-01), Huang
patent: 5644310 (1997-07-01), Laczko, Sr. et al.
patent: 5663725 (1997-09-01), Jang

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