Patent attributes
A storage device according to an embodiment is for storing weights being continuous values. The storage device includes: a shift register, an initialization circuit, an update control circuit, and a readout control circuit. The shift resistor includes a plurality of cells, each being arranged in series and storing information. A position of each of the plurality of cells corresponds to the weight. The initialization circuit writes the information to a cell in the shift register. The update control circuit shifts a position of the cell storing the information in a direction corresponding to a sign of an update amount by a number of cells corresponding to an absolute value of the update amount. The readout control circuit reads out the information and outputs an output value according to the weight corresponding to the position of the cell storing the information.
