Patent ID: 11960759
Assignee: MACRONIX INTERNATIONAL CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. A memory device comprising:
a plurality of memory planes, each of the memory planes including a memory array, the memory array including a plurality of memory blocks, a plurality of word lines and a plurality of bit lines, each of the memory blocks including a plurality of memory cells on a plurality of intersections between the word lines and the bit lines;
wherein
in each of the memory blocks, a memory cell group includes the m memory cells, n memory cells among the m memory cells are programmed to have a first threshold voltage and (m-n) memory cells among the m memory cells are programmed to have a second threshold voltage, m being a positive integer equal to or larger than 2, n being a positive integer equal to or larger than 1, the memory cell group stores a first feature vector of a first object;
in data search, a search data is encoded into m search voltages, n search voltages among the m search voltages have a first search voltage and (m-n) search voltages among the m search voltages have a second search voltage;
in data search, p memory blocks coupled to a first bit line are concurrently selected, p being a positive integer equal to or larger than 2; and
based on a current sensing result on the first bit line, determining whether the search data is matched with the first feature vector of the first object stored in the memory cell group.