Patent ID: 7843315

Claim:
An integrated circuit (IC) tag comprising a number n of separable portions Ak from A 1 to An, wherein n is a natural number such that n≧1 and k is a natural number such that 1≦k≦n, and a portion An+1 in addition to the separable portions A 1 to An, wherein each separable portion Ak includes an integrated circuit ICk and the portion An+1 includes an integrated circuit ICn+1, the IC tag further comprising a number n of signal lines Lk from L 1 to Ln, wherein each signal line Lk electrically connects the ICk and the ICk+1 such that an electrical signal connection is broken upon separation of the portion Ak from the portion Ak+1, wherein each time a separable portion Ak is separated from portion Ak+1, the separation of the portion Ak is detected and a function of the tag is changed from a k-th function to a k+1-th function.