Patent ID: 8188839

Claim:
A radio frequency identification (RFID) tag, comprising: a receiver configured to receive a signal from a reader; a storage module capable of storing tag data, wherein the tag data comprises a first bit pattern and a second bit pattern; a logic module configured to generate a response to the received reader signal, wherein the logic module is configured to generate the response to include the first bit pattern and the second bit pattern formatted according to one of a plurality of data format modes, wherein the plurality of data format modes includes a first data format mode and a second data format mode, wherein in the first data format mode the second bit pattern is altered, wherein in the second data format mode the second bit pattern is unaltered; and a transmitter configured to transmit the response to the received reader signal, wherein the response comprises the first bit pattern in all of the plurality of data format modes and the second bit pattern based on a current data format mode of the plurality of data format modes.