Portable information carrier with transponders

• US 20050236489A1
• Filed: 09/01/2004
• Published: 10/27/2005
• Est. Priority Date: 04/27/2004
• Status: Active Grant

• Current Assignee: Nagravision SA (Kudelski SA)
• Original Assignee: Nagra ID SA (Kudelski SA)
• Inventors: Droz, Francois
• Granted Patent: US 7,083,083 B2
• Time in Patent Office: Days
• US Class Current: 235/487
• CPC Class Codes: G06K 19/025 the material being flexible or adapted for folding, e.g. paper or paper-like materials used in luggage labels, identification tags, forms or identification documents carrying RFIDs methods for testing the genuineness of valuable papers, e.g. banknotes or passports G07D7/00; constructional features of booklets and the like B42D
• CPC Class Codes: G06K 19/07327 Passive means, e.g. Faraday cages Faraday-type protection of electric circuits in general H05K9/00
• CPC Class Codes: G06K 19/077 Constructional details, e.g. mounting of circuits in the carrier
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card

Abstract

The aim of this invention is to propose a portable information carrier equipped with a transponder capable of being activated and deactivated during the use of said information carrier without having recourse to a specific device for actuation. This aim is reached by a portable information carrier comprising at least two substantially planar parts articulated to each other forming an assembly in which one part can be superimposed on the other, the first part includes a transponder arranged on the plane of said part, the second part includes a shielding element that extends over all or part of said part, said transponder intended to be read by means of a suitable reader that transmits an electromagnetic signal activating the transmission of a response from said transponder, wherein said transponder of the first part is positioned facing the shielding element of the second part when both parts are superimposed preventing the activation of the transponder by absorption of the signal transmitted by the reader, said activation being carried out when said parts are moved aside from each other, letting appear the transponder distant from the shielding element.

Claims

1. Portable information carrier comprising at least two substantially planar parts articulated to each other forming an assembly in which one part can be superimposed on the other, the first part includes a transponder arranged on the plane of said part, the second part includes a shielding element made up of an electromagnetic conductive sheet that extends over all or part of said part, said transponder intended to be read by means of a suitable reader that transmits an electromagnetic signal activating the transmission of a response from said transponder, wherein said transponder of the first part is positioned facing the shielding element of the second part when both parts are superimposed preventing the activation of the transponder by absorption of the signal transmitted by the reader, said activation being carried out when said parts are moved aside from each other, letting appear the transponder distant from the shielding element.

2. Information carrier according to claim 1, wherein the articulation between two parts consists in an axis forming a hinge, a first part superimposing a second part by putting said first part down by means of said hinge, said two parts form a booklet, each part being of comparable size constituting a sheet of said booklet.

3. Information carrier according to claim 1, wherein the shielding element of the second part occupies a surface at least equivalent to that occupied by the transponder on the first part.

5. Information carrier according to claim 2, wherein the first sheet includes a transponder positioned symmetrically to a shielding-element included in the second sheet relatively to the hinge linking the two sheets when said sheets are moved aside and arranged in the same plane.

6. Information carrier according to claim 2, wherein each sheet includes a transponder and a shielding element positioned in such a way that when both sheets are superimposed, the transponders are positioned on a corresponding shielding element of the sheet opposite to that carrying said transponder.

7. Information carrier according to claim 2, comprising a booklet including a plurality of sheets, each sheet including a transponder and a shielding element positioned symmetrically on both side of the hinge, said shielding elements covering the transponders of the superimposed sheets when the booklet is opened by presenting the sheets two at a time and allowing the selective reading of each transponder carried by each opened sheet.

8. Information carrier according to claim 1, wherein the articulation between the two parts is made up of a rotating axis perpendicular to the surface formed by said parts and situated in an area adjacent to the edge of said parts.

9. Information carrier according to claim 8, wherein the first part-comprising the transponder rotating around said rotation axis and when superimposed on the second part comprising the shielding element prevents the activation of said transponder and vice versa.

10. Information carrier according to claim 8, wherein the first part comprising the transponder rotating around said rotation axis and when moved aside from the second part comprising the shielding element allows the activation of said transponder and vice versa.

11. Information carrier according to claim 1, comprising several parts of different sizes and shapes articulated each other according to axes forming hinges, which are oriented in different directions.

12. Information carrier according to claim 1, comprising several parts of different sizes and shapes articulated each other according to rotation axes perpendicular to the plane formed by said parts and situated in an area adjacent to the edge of said parts.

13. Information carrier according to claim 1, comprising several parts of different sizes and shapes articulated each other on one hand according to axes forming hinges which are oriented in different directions and on the other hand according to rotation axes perpendicular to the plane formed by said parts and placed in an area adjacent to the edge of said parts.

4. (canceled)