Apparatus for decoding compressed and coded sound signal

Details Apparatus for decoding compressed and coded sound signal Apparatus for decoding compressed and coded sound signal

1995-04-11

1997-10-07

Blum, Russell W.

Pulse or digital communications

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395 267, 395 292, 395 295, 375240, 370477, G10L 900

Patent

active

056757034

ABSTRACT:
An apparatus for decoding a compressed and coded sound signal by applying thereto an inverse quantization processing and a synthesis processing is arranged to include a data extracting unit for extracting quantization level data, scale factor data and quantization data from a data stream of the compressed and coded sound signal, and an integrated processing unit for processing the extracted data by use of an integrated operational equation which is obtained by combining a first operational equation used for the inverse quantization processing with a second operational equation used for the synthesis processing.

REFERENCES:
patent: 5461378 (1995-10-01), Shimoyoshi et al.
patent: 5508949 (1996-04-01), Konstantinides
patent: 5511094 (1996-04-01), Lee et al.
"Outline of MREG Standard" Jun Yonemitsu Technology, Dec. 21, 1993, pp. 11-27.
"Audio Decoder Functional Overview", Chapter 2 of LSI Logic L6411 Technical Manual, pp. 2-1 thru 2-8 Sep. 1993.
Iwadare, M. et al., "A Single-Chip MPEG/Audio Decoder LSI Based on a Compact Decoding Algorithm", VLSI Signal Processing, VIII, pp. 118-125 Sep. 1995.

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