CIRCUIT FOR NONLINEAR TRANSFER FUNCTION OF NEURAL NETWORK

摘要

The nonlinear transfer function of a neural network is realized by an arithmatic unit and simple compensation circuit. The circuit includes a 2's complement adder (1) for operating input data, an overflow compensator (2) for outputting positive or negative maximum value when operation in the 2's complement adder generate overflow, an overflow direction flag (1a) for sending 1 o 0 to the overflow compensator when positive or negative overflow occurs in the 2's complement adder, and an overflow flag (1b) for sending 1 to the overflow compensator when overflow occurs in the 2's complement adder.