Patent ID: 8763914

Claim:
A contactless bi-directional device comprising: first and second generally mutually electromagnetically decoupled contactless loop antennas which are arranged in at least partially mutually overlapping orientation; first and second contactless communication chips, each of said first and second communications chips being connected to a corresponding one of said generally mutually electromagnetically decoupled contactless loop antennas, thereby providing bi-directional communication said decoupling enabling a first communicator to electromagnetically communicate with the first contactless chip while preventing the first communicator from electromagnetically communicating with the second contactless communication chip, and wherein said second contactless loop antenna comprises a pair of at least partially non-mutually overlapping generally coplanar loops, said pair of at least partially non-mutually overlapping generally coplanar loops are wound in mutually opposite directions; and wherein the device is an electronic passport of at least one page wherein the first and second contactless communication chips respectively store passport data and visa data.