Fixed point audio decoding system and method

Details Fixed point audio decoding system and method Fixed point audio decoding system and method

2008-07-01

2008-07-01

Smits, Talivaldis Ivars (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

C704S501000, C704S503000, C704S504000

Reexamination Certificate

active

07395209

ABSTRACT:
A digital audio decoder for receiving an encoded audio signal and decoding the audio signal. The digital audio decoder uses both real time computations and calculations pre-stored in a look-up table to decode the encoded audio signal. The digital audio decoder uses fixed point arithmetic but a variable word format to represent the intermediate computations and pre-stored look-up table entries.

REFERENCES:
patent: 4983037 (1991-01-01), Messing et al.
patent: 5604691 (1997-02-01), Dworkin et al.
patent: 5630005 (1997-05-01), Ort
patent: 5960401 (1999-09-01), Rao
patent: 5963154 (1999-10-01), Wise et al.
patent: 5963596 (1999-10-01), Benbassat et al.
patent: 6009389 (1999-12-01), Dokic et al.
patent: 6012142 (2000-01-01), Dokic et al.
ISO/IEC 11172-3, international standard for coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbit/s, Part 3: Audio, 1993, p. 28-29, 34, 40-41,54.
Peter Noll, “Digital audio for multimedia”, proceedings signal processing for multimedia, NATO Advanced audio institute, 1999.
STA013/013B/013T, MPEG 2.5 layer III audio decoder, products by STMicoroelectronics Group of Companies, 1999.
ISO/IEC CD 14496-3 Subpart 4.
Stefan Geyersberger, et al., “MPEG-2 AAC Multichannel Realtime Implementation on Floating Point DSPs,” Convention, Munich, DE, May 8-11, 1999, 8 pgs., Audio Engineering Society, New York, NY.
Dae-Young Jang, et al., “A Multichannel Audio Codec System for Multichannel Audio Authoring,”: Convention, May 8-11, 1999, Munich, DE, 5 pgs., Audio Engineering Society, New York, NY.

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