Convolution operation method based on NOR flash array

A convolution operation device, comprising:

• a NOR flash array which is a two-dimensional array composed of a plurality of NOR flash cells, and
• a plurality of operational amplifiers,
• wherein each of the NOR flash cells has a gate terminal, a source terminal, and a drain terminal, the gate terminals of the NOR flash cells in a same row of the NOR flash array being connected to a same word line, the drain terminals of the NOR flash cells in a same column of the NOR flash array being connected to a same bit line, and the source terminals of all the NOR flash cells being connected to a common source line,
• wherein each of the operational amplifiers has a positive input terminal connected to a positive bit line and a negative input terminal connected to a negative bit line,
• wherein the convolution operation device is operative to perform a convolution operation method based on a NOR flash array which is a two-dimensional array composed of a plurality of NOR flash cells, the method comprising:
• storing elements of a convolution kernel matrix into the NOR flash cells;
• applying voltages corresponding to elements of an input matrix to gate terminals of the NOR flash cells while applying a driving voltage to source terminals of the NOR flash cells, such that currents are output at drain terminals of the NOR flash cells;
• and
• determining a convolution operation result based on output currents from the drain terminals of the NOR flash cells.