Patent ID: 7828219

Claim:
A printed document ( 3 ), comprising: at least one microcircuit ( 5 ) adapted to generate and transmit a signal that allows identifying the microcircuit ( 5 ) and printed contact parts in series with the microcircuit ( 5 ) for an activation of the said microcircuit ( 5 ); and a sheet of paper, a plurality of the microcircuits and an antenna common to at least two microcircuits, the microcircuits comprising RFID labels, contact parts forming a plurality of switches and each microcircuit is connected to at least one switch, wherein the contact parts comprises two alternate conducting line beams ( 13 , 14 ), electrically insulated by ambient air and at least one of the paper or insulating ink and covering a specific area of the paper, placed such that contact of a determined conducting object on any part of the specific area of the paper makes an electric contact between the parts.