Dynamic synapse for signal processing in neural networks

G - Physics – 06 – E

Patent

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G06E 1/00 (2006.01) G06E 3/00 (2006.01) G06N 3/04 (2006.01)

Patent

CA 2293477

An information processing system having signal processors that are interconnected by processing junctions that simulate and extend biological neural networks. As shown in the figure, each processing junction receives signals from one signal processor and generates a new signal to another signal processor. The response of each processing junction is determined by internal junction processes and is continuously changed with temporal variation in the received signal. Different processing junctions connected to receive a common signal from a signal processor respond differently to produce different signals to downstream signal processors. This transforms a temporal pattern of a signal train of spikes into a spatio-temporal pattern of junction events and provides an exponential computational power to signal processors. Each signal processing junction can receive a feedback signal from a downstream signal processor so that an internal junction process can be adjusted to learn certain characteristics embedded in received signals.

L'invention concerne un système de traitement d'informations comprenant des processeurs de signaux interconnectés par des jonctions de traitement qui simulent et agrandissent les réseaux neuronaux biologiques. Comme l'illustre la figure, chaque jonction de traitement reçoit des signaux d'un processeur de signaux et génère un nouveau signal pour un autre processeur de signaux. La réponse de chaque jonction de traitement est déterminée par des processus de jonction internes et est continuellement modifiée avec une variation temporelle du signal reçu. Différentes jonctions de traitement connectées pour recevoir un signal commun d'un processeur de signaux répondent différemment pour produire différents signaux destinés à des processeurs de signaux en aval. Cela permet de transformer une configuration temporelle d'un train de signaux de pointes en une configuration spatio-temporelle d'événements de jonction et fournit une puissance de calcul exponentielle aux processeurs de signaux. Chaque jonction de traitement de signal peut recevoir un signal de retour provenant d'un processeur de signaux en aval de sorte qu'un processus de jonction interne peut être ajusté pour apprendre certaines caractéristiques noyées dans des signaux reçus.

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