Patent US 5,455,893

The invention relates to a norms computation procedure applied within a neuronal network structure or a computer. It permits determination of the norm of the new synaptic coefficients without necessitating their explicit computation. To this end, the structure comprises a processing unit 10 which determines output potentials y.sub.k and variation .DELTA..sub.k, a storage unit 13 for the old and new norms and a computational unit 15 for the new norms. The latter are thus rapidly determined without needing to call the synaptic coefficients in memory. The procedure can be utilized with certain algorithms which necessitate a computation of norms.