Patent ID: 7284703

Claim:
A method in a radio frequency identification (RFID) tag device for minimizing unintended re-negotiation of the tag device wherein the tag includes a confirmed read flag indicating whether the tag has been previously read, comprising the steps of: (a) receiving a symbol from a reader when an operating state of the tag is a first state; (b) if the received symbol has a first logical value, transitioning the operating state to a second state; and (c) if the received symbol has a second logical value, performing the following steps: (1) evaluating a confirmed read flag, (2) if the confirmed read flag indicates the tag has been previously read, transitioning the operating state to a dormant state, and (3) if the confirmed read flag indicates that the tag has not been previously read, transitioning the operating state, to the second state wherein the value of the confirmed read flag is retained upon removal from and re-entry into the field of interrogation.