National Tsing Hua University Assigned Patent

National Tsing Hua University, Hsinchu, Taiwan, has been assigned a patent (11,393,523) developed by Xue, Cheng-Xin, Kao, Hui-Yao, Huang, Sheng-Po, Huang, Yen-Hsiang, and Chang, Meng-Fan, Hsinchu, Taiwan, for “memory unit with asymmetric group-modulated input scheme and current-to-voltage signal stacking scheme for non-volatile computing-in-memory applications and computing method thereof.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A memory unit with an asymmetric group-modulated input scheme and a current-to-voltage signal stacking scheme for a plurality of non-volatile computing-in-memory applications is configured to compute a plurality of multi-bit input signals and a plurality of weights. A controller splits the multi-bit input signals into a plurality of input sub-groups and generates a plurality of switching signals according to the input sub-groups, and the input sub-groups are sequentially inputted to the word lines. The current-to-voltage signal stacking converter converts the bit-line current from a plurality of non-volatile memory cells into a plurality of converted voltages according to the input sub-groups and the switching signals, and the current-to-voltage signal stacking converter stacks the converted voltages to form an output voltage. The output voltage is corresponding to a sum of a plurality of multiplication values which are equal to the multi-bit input signals multiplied by the weights.”

The patent application was filed on January 13, 2021 (17/148,504).