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

1994-02-16

1998-07-21

MacDonald, Allen R.

395 21, 395 225, G10L 900

Patent

active

057845328

ABSTRACT:
A method and apparatus for implementing a vocoder in a application specific integrated circuit (ASIC) is provided. 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 comprises a specifically designed block normalization circuitry.

REFERENCES:
patent: 4811210 (1989-03-01), McAulay
patent: 5173941 (1992-12-01), Yip et al.
patent: 5414796 (1995-05-01), Jacobs et al.
1991 IEEE International conference on Computer-Aided design, p. 272-5, Vanhoof et al., "Compiling multi-dimensional data streams into distributed DSP ASIC memory" pp. 271-5, Nov. 1991.
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 applications", pp. 429-432, Apr. 1994.
ICC '93 Geneva, IEEE International Conference on Communications '93. pp. 207-211 vol. 1, Vanzieleghem et al., "A compact and power efficient GSM vocoder", May 1993.

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