| 摘要 |
PROBLEM TO BE SOLVED: To provide a coupling coefficient updating method faithfully leading out learning algorithm from a neuron output function and realizing learning processing through the use of a simple logical circuit. SOLUTION: The plus component of a differential signalδk<+> (or an inversion signal by an inverter 45) at a neuron (k), the minus componentδk<-> of the same signal (or an inversion signal by an inverter 44 and S'kj are inputted in an AND circuit 46 or 47 and processed byηcircuits 38 and 38. Then the signal obtained by the processing is set to be the plus componentΔkj<+> of the updated quantity of the coupling coefficient or the minus componentΔkj<-> of the updated quantity of the coupling coefficient. When the OR output of theΔkj<+> and a coupling coefficient pulse Wkj before update by means of an OR circuit 48 is '1', '1' is added at an up/down counter 41 and when the kj is '1', '1' is subtracted at the up/down counter 41 to set the result value obtained by these adding and subtracting processing to be a new coupling coefficient.
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