Application specific integrated circuit (ASIC) for performing ra

Details Application specific integrated circuit (ASIC) for performing ra Application specific integrated circuit (ASIC) for performing ra

1997-06-11

1999-07-20

Dorvil, Richemond

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704217, G10L 900

Patent

active

059267860

ABSTRACT:
A method and apparatus for implementing a vocoder in a application specific integrated circuit (ASIC) is described. The apparatus contains a DSP core that performs computations in accordance with a reduced instruction set (RISC) architecture. The circuit further includes a specifically designed slave processor to the DSP core referred to as the minimization processor. The apparatus further includes a specifically designed block normalization circuitry.

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1991 IEEE International conference on Computer-Aided design, pp. 272-275, Vanhoof et al., "Compiling multi-dimensional data streams into distributed DSP ASIC memory" pp. 271-275.
ICASSP-94 1994 IEEE International conference on Acoustics, Speech and Signal Processing, pp. II/429-432 vol. 2, Nurmi et al., "A DSP core for speech coding application", pp. 429-432.
IEEE International Conference on Communication, ICC 90; Chung et al, "Gain Normalization in a 4200 BPS Homomorphic Vocoder", pp. 942-946 vol. 3.
ICC '93 Geneva. IEEE International Conference Communications '93. pp. 207-211 vol. 1, Vanzieleghem et al., "A compact and power efficient GSM vocoder".

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