# US 7,360,712 B2 · Method and device for protecting text for reading > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,360,712 B2 - Document ID: US7360712B2 - Status: Granted - Kind: B2 - Application number: 10/515,719 - Filed: 2003-05-27 - Published: 2005-10-20 - Granted: 2008-04-22 - Earliest claimed: 2002-05-29 - Assignees: Francois Trantoul; Fasver; Inside Contactless - Inventors: Francois Trantoul; Didier Serra; Eric Jouve; Pierre Pic; Jean-Yves Leroy - Web page: https://patentgrep.com/patent/US7360712B2 ## CPC - 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)} - G06K 19/072: {the record carrier comprising a plurality of integrated circuit chips} - G06K 19/073: Special arrangements for circuits, e.g. for protecting identification code in memory (protection against unauthorised use of computer memory G06F12/14) - 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} - G06K 19/07767: {the first and second communication means being two different antennas types, e.g. dipole and coil type, or two antennas of the same kind but operating at different frequencies} - G06K 19/10: at least one kind of marking being used for authentication, e.g. of credit or identity cards (verification of coded identity or credit cards in mechanisms actuated by them G07F7/12) - B41M 3/14: Security printing {(securities B42D25/29)} - B41M 7/0027: {using protective coatings or layers by lamination or by fusion of the coatings or layers} - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P) ## Abstract A method and a device for protecting text for reading (23), arranged on at least one written face (22) of an object (25). The object (25) is connected to at least one matching antenna (12), produced by printing on a support (11) and having at least one electromagnetic coupling zone (14) with an individual antenna of smaller dimensions. At least one security film (3), not provided with a matching antenna (12) but with at least one individual integrated antenna microcircuit called a microtransponder (7), is applied to cover the text for reading (23) for which authentication information may be delivered using the microtransponder (7). ## Claims ### Claim 1 A method for protecting readable script formed on at least one face of an object, referred to as a scripted face, comprising: covering readable script on at least one scripted face of the object with a transparent protective film, which adheres to the scripted face, and the object is associated with at least one microcircuit having at least one antenna for contactless remote reading of authenticating information, which can be delivered by this microcircuit and is designed to permit authentication of at least some of the readable script, wherein: the object is associated with at least one antenna referred to as a matching antenna, formed by printing on a support, this matching antenna having at least one zone for electromagnetic coupling with an individual antenna whose dimensions are smaller than those of the matching antenna, at least one transparent protective film referred to as a security film is employed, which does not carry a matching antenna but carries at least one microcircuit with an integrated individual antenna, referred to as a microtransponder, at a predetermined position so that after the security film has been placed on the scripted face of the object, and for at least one position or state of the object: the microtransponder permits electromagnetic coupling of the individual antenna with an electromagnetic coupling zone of a matching antenna associated with the object, the microtransponder does not mask any essential part of the readable script, a security film is applied and adhered to a corresponding scripted face in order to cover readable script and so as to permit electromagnetic coupling of the individual antenna of each microtransponder with a coupling zone and a matching antenna, for at least one position or state of the object, the matching antenna having dimensions designed to permit the remote transmission of information between the individual antenna and a power antenna of a reading device when the object is placed in the field of this power antenna. ### Claim 2 (depends on 1) The method as claimed in claim 1, wherein at least one matching antenna is printed on a printing support which is not a security film carrying at least one microtransponder. ### Claim 3 (depends on 1) The method as claimed in claim 1, wherein at least one matching antenna is printed on a face of the object. ### Claim 4 (depends on 3) The method as claimed in claim 3 wherein the matching antenna is subsequently covered with a protective film. ### Claim 5 (depends on 1) The method as claimed in claim 1, wherein at least one matching antenna is printed on the scripted face before applying a security film to the scripted face. ### Claim 6 (depends on 1) The method as claimed in claim 1, wherein at least one matching antenna is printed on a face of the object which is not a scripted face. ### Claim 7 (depends on 1) The method as claimed in claim 1, wherein at least one matching antenna carried by a film of synthetic material referred to as an antenna film is employed, and this antenna film is adhered to a face of the object. ### Claim 8 (depends on 7) The method as claimed in claim 7, wherein the antenna film is applied and adhered to a face of the object which is not the scripted face. ### Claim 9 (depends on 8) The method as claimed in claim 8, wherein the antenna film is applied and adhered to a face of the object which is the verso of a sheet of the object whose recto is the scripted face. ### Claim 10 (depends on 7) The method as claimed in claim 7, wherein at least one transfer referred to as an antenna transfer is employed, comprising a support sheet carrying an adhesive antenna film, this antenna transfer being designed to apply and adhere the antenna film to a face of the object by separating the antenna film from the support sheet. ### Claim 11 (depends on 1) The method as claimed in claim 1, wherein at least one matching antenna is employed that is printed with an ink which is transparent to visible light and electrically conductive after drying. ### Claim 12 (depends on 1) The method as claimed in claim 1, wherein at least one matching antenna comprising an electrical capacitor of adjustable value is employed. ### Claim 13 (depends on 1) The method as claimed in claim 1, wherein at least one matching antenna is employed which forms a resonant electrical circuit comprising an electrical capacitor incorporated in a graphic pattern of the antenna film and/or of the object, or superimposed with the pattern. ### Claim 14 (depends on 1) The method as claimed in claim 1, wherein at least one matching antenna printed by silkscreen printing is employed. ### Claim 15 (depends on 1) The method as claimed in claim 1, wherein at least one given matching antenna is employed comprising a plurality of electromagnetic coupling zones for coupling the matching antenna with a plurality of individual antennas of a plurality of microtransponders. ### Claim 16 (depends on 1) The method as claimed in claim 1, wherein a plurality of security films each comprising at least one microtransponder are employed for the protection of readable script on a plurality of scripted faces of the object. ### Claim 17 (depends on 1) The method as claimed in claim 1, wherein at least one security film comprising at least one microtransponder incorporated in the thickness of the security film is employed. ### Claim 18 (depends on 1) The method as claimed in claim 1, wherein at least one multilayered security film is employed. ### Claim 19 (depends on 1) The method as claimed in claim 1, wherein at least one security film formed by printing is employed, incorporating at least one microtransponder in the thickness of the security film when the security film is being formed by printing, between two printed layers. ### Claim 20 (depends on 1) The method as claimed in claim 1, wherein at least one security film formed by silkscreen printing is employed. ### Claim 21 (depends on 1) The method as claimed in claim 1, wherein at least one transfer referred to as a protection transfer is employed, comprising a support sheet carrying an adhesive security film, this protection transfer being designed to apply and adhere the security film to a scripted face of the object by separating the security film from the support sheet. ### Claim 22 (depends on 1) The method as claimed in claim 1, wherein information for authenticating at least some of the readable script is recorded in at least one memory of at least one microtransponder carried by at least one security film covering this readable script. ### Claim 23 (depends on 1) The method as claimed in claim 1, wherein authenticating information which represents a key and/or an algorithm for authentication and/or a certificate resulting from an algorithm is recorded in at least one memory of at least one microtransponder carried by at least one security film covering readable script. ### Claim 24 (depends on 1) The method as claimed in claim 1, wherein at least one microtransponder forming a logic circuit is employed. ### Claim 25 A device for protecting readable script formed on at least one face of an object, referred to as a scripted face, comprising: at least one transparent protective film adapted to adhere to the scripted face while covering readable script, and at least one microcircuit associated with the object, having at least one antenna for contactless remote reading of authenticating information, which can be delivered by the microcircuit and is designed to permit authentication of at least some of the readable script, wherein the microcircuit comprises: at least one antenna associated with the object, referred to as a matching antenna, formed by printing on a support and having at least one zone for electromagnetic coupling with an individual antenna whose dimensions are smaller than those of the matching antenna, at least one transparent protective film referred to as a security film, which does not carry a matching antenna but carries at least one microcircuit and with an integrated individual antenna, referred to as a microtransponder, at a predetermined position so that after the security film has been placed on the scripted face of the object, and for at least one position or state of the object: the microtransponder permits electromagnetic coupling of the individual antenna with an electromagnetic coupling zone of a matching antenna associated with the object, the microtransponder does not mask any essential part of the readable script, and wherein the matching antenna has dimensions designed to permit the remote transmission of information between the individual antenna and a power antenna of a reading device when the object is placed in the field of this power antenna. ### Claim 26 (depends on 25) The device as claimed in claim 25, wherein at least one matching antenna is printed on a printing support which is not a security film carrying at least one microtransponder. ### Claim 27 (depends on 25) The device as claimed in claim 25, wherein at least one matching antenna is printed on a face of the object. ### Claim 28 (depends on 27) The device as claimed in claim 27, wherein the device further comprises at least one protective film designed to cover at least one printed matching antenna. ### Claim 29 (depends on 25) The device as claimed in claim 25, wherein at least one matching antenna is printed on the scripted face. ### Claim 30 (depends on 25) The device as claimed in claim 25, wherein at least one matching antenna is printed on a face of the object which is not the scripted face. ### Claim 31 (depends on 25) The device as claimed in claim 25, wherein the device further comprises at least one film of synthetic material referred to as an antenna film, which carries at least one printed matching antenna. ### Claim 32 (depends on 31) The device as claimed in claim 31, wherein the device further comprises at least one transfer referred to as an antenna transfer, comprising a support sheet carrying an adhesive antenna film, this antenna transfer being designed to apply and adhere the antenna film to a face of the object by separating the antenna film from the support sheet. ### Claim 33 (depends on 25) The device as claimed in claim 25, wherein at least one matching antenna is printed with an ink which is transparent to visible light and electrically conductive after drying. ### Claim 34 (depends on 25) The device as claimed in claim 25, wherein at least one matching antenna comprises an electrical capacitor of adjustable value. ### Claim 35 (depends on 25) The device as claimed in claim 25, wherein at least one matching antenna forms a resonant electrical circuit comprising an electrical capacitor incorporated in a graphic pattern of the antenna film and/or of the object, or superimposed with such a pattern. ### Claim 36 (depends on 25) The device as claimed in claim 25, wherein the device further comprises at least one given matching antenna comprising a plurality of electromagnetic coupling zones for coupling the device with a plurality of individual antennas of a plurality of microtransponders. ### Claim 37 (depends on 25) The device as claimed in claim 25, wherein the device further comprises a plurality of security films each comprising at least one microtransponder for the protection of readable script on a plurality of scripted faces of the object. ### Claim 38 (depends on 25) The device as claimed in claim 25, wherein at least one security film comprises at least one microtransponder incorporated in the thickness of the security film. ### Claim 39 (depends on 25) The device as claimed in claim 25, wherein at least one security film is multilayered. ### Claim 40 (depends on 25) The device as claimed in claim 25, wherein at least one security film is formed by printing and incorporates at least one microtransponder in its thickness, between two printed layers. ### Claim 41 (depends on 25) The device as claimed in claim 25, wherein each microtransponder incorporated in a security film has a thickness of less than 0.2 mm and an area of less than 10 mm 2 in the plane of the security film. ### Claim 42 (depends on 25) The device as claimed in claim 25, wherein each microtransponder incorporated in a security film has a thickness of between 50 p and 180 p. ### Claim 43 (depends on 25) The device as claimed in claim 25, wherein the device further comprises at least one transfer referred to as a protection transfer, comprising a support sheet carrying an adhesive security film, this protection transfer being designed to make it possible to apply and adhere the security film to a scripted face of the object by separating the security film from the support sheet. ### Claim 44 An object comprising at least one face referred to as a scripted face on which readable script is formed, wherein the object further comprises: at least one matching antenna formed by printing on a support and associated with the object, this matching antenna having at least one zone for electromagnetic coupling with an individual antenna whose dimensions are smaller than those of the matching antenna, at least one security film which does not carry a matching antenna but carries at least one microcircuit and with an integrated individual antenna, referred to as a microtransponder, the security film being applied and adhering to the scripted face in order to cover readable script, the position of each microtransponder being designed so as to permit electromagnetic coupling of the individual antenna of each microtransponder with a coupling zone of a matching antenna, for at least one position or state of the object, the matching antenna having dimensions designed to permit the remote transmission of information between the individual antenna and a power antenna of a reading device when the object is placed in the field of this power antenna, and wherein at least one microtransponder of a security film covering readable script is designed to be able to deliver information for authenticating at least some of the readable script.