PURPOSE: To reproduce a time sequence from an association storage device by providing a sampling and holding device to introduce a delayed feedback to a neural network, and operating the device according to a clock input. CONSTITUTION: An output pattern 3 of neural network 1 is fed back to a sampling and holding device 2. Namely, a circuit 2 samples the output pattern 3 according to a first clock pulse CLK1 and also includes a storage element 4 for holding, and the held pattern 3 is differentially amplified by an input buffer amplifier 10. A differential signal is transferred to second storage elements 5 and 6 according to a second clock pulse CLK2, and the second storage elements 5 and 6 are connected to synapse array 16 in the neural network 1 to feed back to the network 1. As a result, temporary reproduction of structuring sequence from an association storage device becomes possible.
METHOD AND APPARATUS FOR DELAY FEEDBACK OF OUTPUT PATTERN IN NERVE NETWORK