Eads Telecom

Gaël Champion

The invention concerns a method and a device for converting an input digital value quantized in accordance with a first quantization factor and encoded on at most n1 bits, into an output digital value quantized in accordance with a second quantization factor and encoded on at most n2 bits. The method comprises the steps of: multiplying the input digital value by an integer B, encoded on at most &#x3b2; bits, so as to generate an intermediate digital value; and dividing, in fixed point, the first intermediate digital value by the number 2, where &#x3b1; is an integer not greater than n1+&#x3b2;, generating the output digital value. The number B/2is substantially equal to the ratio of the second quantization factor over the first quantization factor. Additionally, the divider means comprise a Sigma-Delta modulator.

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Paris, France

Gaël Champion