Patent ID: 6028893
Filing Date: 2000-02-22
Classification: H03H,H03M

Abstract:
A method for data reduction in the processing of signal values by a digital signal processing unit in a transmission system, comprising the steps of:storing a block of k signal values wherein each of the k signal values is in fixed decimal point format;defining a maximum value of the k signal values;converting each of the k signal values into floating decimal point format so as to reduce a number of digits required to represent the block of k signal values, wherein individual mantissas are respectively determined for each of the converted k signal values and a common exponent is determined for all of the converted k signal values, the common exponent being based on the maximum value of the k signal values and corresponding to a plurality of shifts to the right by which each of the k signal values are shifted;setting a number of places of the common exponent according to a prescribable dynamic range; andsetting a number of places of the individual mantissas according to a prescribable signal-to-noise ratio.