Patent ID: 8028149

Claim:
A method of reading an integrated circuit memory of a contactless tag, comprising: receiving, from a remote interrogation unit at the contactless tag, a specific command to read a group of memory words from a given start address; initializing an address counter for the contactless tag to a value of the start address; sending, by the contactless tag, an initial memory word within the group of memory words at the start address; and performing an iterative process comprising: receiving, from the remote interrogation unit at the contactless tag, a message consisting of an incrementation marker recognizable by the contactless tag in response to each memory word within the group of memory words at an address corresponding to a current value of the address counter being successfully sent by the contactless tag to the remote interrogation unit; in response to the incrementation marker, incrementing the address counter or the contactless tag from the current value to a new value; and sending, by the contactless tag to the remote interrogation unit, (a) a data frame comprising a memory word within the group of memory words stored in the memory at an address corresponding to the new value of the address counter and (b) a cyclic redundancy check code which is dependent on the memory word at the address corresponding to the new value of the address counter, wherein the new value becomes the current value for subsequent iterations.