Sony Group Corporation
ARITHMETIC APPARATUS, MULTIPLY-ACCUMULATE SYSTEM, AND SETTING METHOD

Abstract:

An arithmetic apparatus includes input lines and multiply-accumulate devices. An electrical signal for an input value is input into each of the input lines within a predetermined input period. Multiplication units include a positive weight multiplication unit that generates a positive weight charge for a product value obtained by multiplying the input value by a positive weight value and/or a negative weight multiplication unit that generates a negative weight charge for a product value obtained by multiplying the input value by a negative weight value. They are configured such that a positive weight ratio that is a ratio of a sum total of the positive weight values to a sum total of absolute values of the weight values is any ratio of 0% to 100%. An output unit of the multiply-accumulate device accumulates the generated weight charges to output a multiply-accumulate signal representing a sum of the product values.