Application specific integrated circuit (ASIC) for performing rapid speech compression in a mobile telephone system
 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. 
Qualcomm Incorporated
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Chienchung Randeep Charles E. Prashant Ming-Chang John G.
Chang Singh Sakamaki Kantak Tsai McDonough