Digital signal transformation device and method

Details Digital signal transformation device and method Digital signal transformation device and method

G - Physics

06

F

G06F 9/00 (2006.01) G06F 7/00 (2006.01) H03H 17/02 (2006.01) H03M 7/30 (2006.01) H04N 7/26 (2006.01) H04N 7/30 (2006.01)

Patent

CA 2277235

The invention concerns a digital signal transformation method, original samples (x2i ; y1 2i) of the digital signal being transformed into output samples (y1 2i, x2i), any output sample being calculated by a function of original samples, and/or of intermediate samples (t2i+1, v2i, t1 2i, v1 2i+1), and/or of output samples, characterised in that : - each function is broken down into elementary operations ; - the elementary operations of all the functions are ordered so that the number of samples necessary simultaneously is a minimum. The invention makes it possible to minimise the memory space necessary to calculate the transformation.

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