Abstract: The invention relates to a near field magnetically coupled contactless tag, comprising a substrate comprising a rupture zone; a master microcircuit arranged on the substrate on one side of the rupture zone, and configured to be interrogated by a near-field reader; a slave microcircuit arranged on the substrate on the other side of the rupture zone; and a sacrificial link connecting the two microcircuits, wherein the two microcircuits are configured to negotiate mutual authentication through the sacrificial link.

Abstract: The invention relates to a near field magnetically coupled contactless tag, comprising a substrate comprising a rupture zone; a master microcircuit arranged on the substrate on one side of the rupture zone, and configured to be interrogated by a near-field reader; a slave microcircuit arranged on the substrate on the other side of the rupture zone; and a sacrificial link connecting the two microcircuits, wherein the two microcircuits are configured to negotiate mutual authentication through the sacrificial link.

Abstract: An NFC tag includes a foldable substrate in the form of a tape; an antenna located at a first end of the tape; a capacitor connected to the antenna, located at the first end of the tape; an impedance, in particular a capacitor, located at a second end of the tape; and conductive tracks running along the tape to connect the impedance to the antenna.

Abstract: A near field magnetically coupled anti-counterfeiting tag comprises a control microcircuit configured to implement a basic function and a cryptographic function; a sacrificial conductive track located across a sacrificial area of the tag; and a circuit for detecting continuity of the sacrificial track, cooperating with the microcircuit to implement the basic function without implementing the cryptographic function when the sacrificial track is broken.

Abstract: A near field magnetically coupled contactless device includes a foldable substrate in the form of a tape; two metal surfaces located facing each other on opposite sides of the substrate in a region of interest of the substrate, configured such that a piercing of the region of interest causes a permanent short circuit between the two metal surfaces; and a circuit configured to detect a short circuit between the two metal surfaces.

Abstract: An NFC tag includes a foldable substrate in the form of a tape; an antenna located at a first end of the tape; a capacitor connected to the antenna, located at the first end of the tape; an impedance, in particular a capacitor, located at a second end of the tape; and conductive tracks running along the tape to connect the impedance to the antenna.

Abstract: A near field magnetically coupled anti-counterfeiting tag comprises a control microcircuit configured to implement a basic function and a cryptographic function; a sacrificial conductive track located across a sacrificial area of the tag; and a circuit for detecting continuity of the sacrificial track, cooperating with the microcircuit to implement the basic function without implementing the cryptographic function when the sacrificial track is broken.

Abstract: A near field magnetically coupled contactless device, comprises a foldable substrate in the form of a tape; an antenna circuit tuned to a nominal frequency, including an antenna and a capacitor connected to the antenna; a sacrificial impedance connected to the antenna circuit to contribute to the tuning of the antenna circuit to the nominal frequency; and a sacrificial structure comprising a conductive track connecting the sacrificial impedance to the antenna circuit, configured in meanders occupying a region of interest of the substrate such that a piercing of the region of interest severs the conductive track.

Abstract: The present invention relates to a method for manufacturing a microcircuit card, including steps of: forming a first antenna coil in a card, the first antenna coil having a part following the edge of the card, forming a module having a microcircuit and a second antenna coil around and connected to the microcircuit, and implanting the module into the card at a precise position in relation to the edge of the card, the first antenna coil being coupled by induction to the second antenna coil, the first antenna coil being pre-formed in such a way that only one part of the second antenna coil is at a distance from the first antenna coil of less than 5% of the width of the second antenna coil.

Abstract: The present invention relates to a method for manufacturing an object integrating a contactless microcircuit, the method including steps of: forming an antenna coil in the shape of a spiral from a first face of a medium, forming on the medium first and second conducting pads respectively coupled to internal and external ends of the spiral of the antenna coil, connecting the connection terminals of the microcircuit to third and fourth conducting pads, and fixing the microcircuit onto the medium by arranging opposite one another the first and the third conducting pad, and opposite one another the second and the fourth conducting pad, the first to fourth conducting pads forming two capacitors mounted in series with the antenna coil, the antenna coil and the first and second conducting pads being formed by inserting a conducting wire into the medium.

Abstract: The invention relates to a method for manufacturing a contactless microcircuit antenna coil, including steps of: depositing a first electrically conducting layer on a first face of a wafer, and forming in the first layer an antenna coil in a spiral having several turns, including an internal turn coupled to an internal contact pad and an external turn coupled to an external contact pad, the external turn following the entire contour of antenna coil except for a zone through which a conducting path coupling the external contact pad to the external turn can pass, the external and internal contact pads of the antenna coil being formed in a central zone of the external turn, the antenna coil having a bypass zone in which each turn bypasses the external contact pad.

Abstract: The present invention relates to a method for manufacturing an object integrating a contactless microcircuit, the method including steps of: forming an antenna coil in the shape of a spiral on a first face of a medium, fixing the microcircuit onto the medium, forming on the medium first and second conducting pads respectively coupled to ends internal and external to the spiral of the antenna coil, connecting the connection terminals of the microcircuit to third and fourth conducting pads, and fixing the microcircuit onto the medium, by arranging opposite one another the first and the third conducting pad, and opposite one another the second and the fourth conducting pad, so as to form two capacitors mounted in series with the antenna coil, the first or second conducting pad including a non-conducting window opposite which the microcircuit is placed.

Abstract: The invention relates to a method for manufacturing a contactless microcircuit antenna coil, including steps of: depositing a first electrically conducting layer on a first face of a wafer, and forming in the first layer an antenna coil in a spiral having several turns, including an internal turn coupled to an internal contact pad and an external turn coupled to an external contact pad, the external turn following the entire contour of antenna coil except for a zone through which a conducting path coupling the external contact pad to the external turn can pass, the external and internal contact pads of the antenna coil being formed in a central zone of the external turn, the antenna coil having a bypass zone in which each turn bypasses the external contact pad.

Abstract: The present invention relates to a method for manufacturing a microcircuit card, including steps of: forming a first antenna coil in a card, the first antenna coil having a part following the edge of the card, forming a module having a microcircuit and a second antenna coil around and connected to the microcircuit, and implanting the module into the card at a precise position in relation to the edge of the card, the first antenna coil being coupled by induction to the second antenna coil, the first antenna coil being pre-formed in such a way that only one part of the second antenna coil is at a distance from the first antenna coil of less than 5% of the width of the second antenna coil.

Abstract: The present invention relates to a slotted joint comprising a central pin and an outer tube. In one embodiment, the slotted joint comprises a first and second elastomer arm, which are bonded to an outer surface of the central pin diametrically opposite each other and spaced apart from each other to form a first and second space. The slotted joint further comprises a first abutment positioned in the first space and a second abutment positioned in the second space. The first and second abutments include an abutment part made of a rigid material and a cylindrical sector made of an elastomer. The cylindrical sector may be bonded to an outer surface the central pin and to an inner surface of the abutment part. An outside face of the cylindrical sector is spaced apart from the inner surface of the outer tube when the joint is at rest.

Abstract: An antennae device for reading electronic labels includes passive antennae arranged in the form of an array comprising L lines and C columns. The antennae are located in the array by co-ordinates (i, j), i ranging from 1 to L, j ranging from 1 to C. Each antenna (i, j) is controlled by two control switches, one controlling the antennae located on a line i, the other controlling the antennae located on a column j.

Abstract: The present invention relates to a slotted joint comprising a central pin and an outer tube. In one embodiment, the slotted joint comprises a first and second elastomer arm, which are bonded to an outer surface of the central pin diametrically opposite each other and spaced apart from each other to form a first and second space. The slotted joint further comprises a first abutment positioned in the first space and a second abutment positioned in the second space. The first and second abutments include an abutment part made of a rigid material and a cylindrical sector made of an elastomer. The cylindrical sector may be bonded to an outer surface the central pin and to an inner surface of the abutment part. An outside face of the cylindrical sector is spaced apart from the inner surface of the outer tube when the joint is at rest.

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).

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).

Abstract: The invention concerns an antennae device (30) for reading electronic labels (2), characterised in that the antennae (30) are passive antennae arranged in the form of an array (3) comprising L lines and C columns and located in accordance with said array (3) by co-ordinates (i, j), i ranging from 1 to L, j ranging from 1 to C and each antenna (ij) is controlled by two control means (31i, 32j), one controlling said antennae (30) located on the line i, the other controlling said antennae (30) located on the column j.