PURPOSE: To furthermore improve processing capacity by furthermore improving a digital type neuron model.

CONSTITUTION: In a signal processing method for simultaneously processing plural binarized information strings, at least two or more 1st inputs 12 and one 2nd input 19 are prepared, memories 13a, 13b are prepared corresponding to respective 1st inputs 12, AND operation between memory contents successively read out from the memories 13a, 13b and the information of the 1st input is computed in each input, OR operation of all inputs of obtained AND results is computed in each of two units 11a, 11b previously set up in each input, and the OR result of a previously determined unit when two obtained OR results are different from each other or the information of the 2nd input 19 when the two OR results coincide with each other is outputted to the other unit or the input of the self-unit.