Patent ID: 11893446
Assignee: IMPINJ, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. A method for a Radio Frequency Identification (RFID) integrated circuit (IC) to indicate a corrupted identifier, the method comprising:
receiving a command requesting a first identifier stored in an IC memory;
in response to receiving the command, retrieving the first identifier and a check code from the IC memory, the check code based on and used to check a correctness of the first identifier;
determining that the check code does not correspond to the first identifier and that the first identifier is therefore corrupted;
adjusting protocol control information associated with the first identifier, wherein an unadjusted protocol control information indicates that the first identifier has a nonzero length and the adjusted protocol control information indicate that the first identifier has a zero length; and
transmitting a reply to the command, the reply including at least the adjusted protocol control information.