UNIM Innovation Assigned Four Patents

Control method for NAND flash memory to complete XNOR operation
UNIM Innovation (Wuxi) Co., Ltd., Wuxi, China, has been assigned a patent (12475956) developed by Tang; Qiang, Wuxi, China, for a “control method for NAND flash memory to complete XNOR operation.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The present invention provides a control method for an NAND flash memory to complete an XNOR operation, including: providing an NAND flash memory, where the NAND flash memory includes at least one memory block and multiple sense amplifiers, the memory block includes multiple synaptic strings, multiple bit lines and multiple word lines, the synaptic string includes multiple memory cells connected in series, the synaptic strings are connected to the bit lines in one-to-one correspondence, the word lines are all connected to all the synaptic strings, and the sense amplifiers are connected to the bit lines in one-to-one correspondence, thereby completing the XNOR operation of the NAND flash memory by controlling a storage mode of data and a voltage of the word line.”

The patent application was filed on 2023-12-07 (18/532526).

Method for controlling NAND flash memory to implement XNOR operation
UNIM Innovation (Wuxi) Co., Ltd., Wuxi, China, has been assigned a patent (12475940) developed by Tang; Qiang, Wuxi, China, for a “method for controlling NAND flash memory to implement XNOR operation.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The present invention provides a method for controlling a NAND flash memory to implement an XNOR operation. First word lines and second word lines are connected to sense amplifiers in a one-to-one correspondence manner. The XNOR operation of the NAND flash memory is implemented by controlling a data storage mode and a voltage of the word lines.”

The patent application was filed on 2023-12-11 (18/534834).

Method for controlling NAND flash memory to complete neural network operation
UNIM Innovation (Wuxi) Co., Ltd., Wuxi, China, has been assigned a patent (12469547) developed by Tang; Qiang, Wuxi, China, for a “method for controlling NAND flash memory to complete neural network operation.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The present invention provides a method for controlling a NAND flash memory to complete neural network operation, including the following steps: providing a NAND flash memory, where the NAND flash memory includes multiple memory blocks and multiple page buffers, the memory block includes multiple synaptic strings, multiple bit lines, and multiple word lines, the synaptic string includes multiple memory cells connected in series, the synaptic strings are connected to the bit lines in one-to-one correspondence, the word line is connected to all the synaptic strings, the page buffer is connected to all the memory blocks, and one of the bit lines is merely connected to one of the page buffers; writing weight data into the memory cell according to a relationship between the weight data and the feature data; applying a target voltage to the memory cell by the word line; and sensing, by the page buffer, a current of the memory block, to obtain a convolution result. Thus, the neural network operation is achieved using a generic NAND flash memory.”

The patent application was filed on 2023-12-11 (18/534957).

Method for NAND flash memory to complete convolution operation of multi-bit data
UNIM Innovation (Wuxi) Co., Ltd., Wuxi, China, has been assigned a patent (12451173) developed by Tang; Qiang, Wuxi, China, for a “method for NAND flash memory to complete convolution operation of multi-bit data.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Provided is a method for a NAND flash memory to complete convolution operation of multi-bit data, including the following steps: dividing multiple memory cells connected by the same word line into multiple groups of memory cells, writing sub-weight data into the multiple groups of memory cells according to a corresponding relationship between the sub-weight data and sub-feature data, where one group of memory cells only stores one piece of weight data, and one memory cell in one group of memory cells only stores 1-bit data of the sub-weight data; applying a target voltage to the plurality of groups of memory cells through a plurality of word lines; sensing, by multiple corresponding page buffers, currents of memory blocks to obtain multiple pieces of sub-data; and processing the multiple pieces of sub-data to obtain a convolution result. The neural network operation of multi-bit data is achieved using a general NAND flash memory.”

The patent application was filed on 2023-11-30 (18/524840).