Patent ID: 11955202
Assignee: MACRONIX INTERNATIONAL CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A multilevel searching method for a multilevel content addressable memory (MCAM), comprising:
storing a plurality of stored words in a plurality of NAND strings;
inputting an input search word to the NAND string, wherein each of the stored words and the input search word is converted from a multilevel-bit binary data into a digital string data, if a decimal value of the multilevel-bit binary data is an exact value, a number of an indicating bit in the digital string data is the exact value, a length of the digital string data is equal to or larger than a highest decimal value of the multilevel-bit binary data; and
outputting a comparison result, wherein if the digital string data of the input search word overlap the digital string data of one of the stored words, the comparison result is a match signal.