Patent ID: 11966807
Assignee: NANJING UNIVERSITY OF INFORMATION SCIENCE AND TECHNOLOGY
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 7:
8. The multi-tag concurrent identification method for a query tree based on feature groups according to claim 1, wherein in the step 2, when m=K, mapping steps of the mapping data returned by the tag specifically comprise:
step 2.31: K-bit original data is input, the data is represented as b=bK-1bK-2 . . . b0, and mapped M-bit data is represented as G=G1G2 . . . GN, wherein M=2K, N=2K/K, bi represents a certain binary number and Gi represents a K-bit data string of the i-th segment in G; an initialization is performed to make G as an all-zero data string;
step 2.32: the tag matches the own ID with the spre in the query command, and performs an operation of bitwise XOR on a matched Wi data string and a corresponding group query to generate Gi; and
step 2.33: the tag replaces a corresponding data string part in G with the generated Gi, and remaining data bits in G remain unchanged, and then returns to the reader.