Abstract: The invention concerns a radio frequency identification device (RFID) including a chip (12) and an antenna (10) connected together on a support, the antenna being printed onto the support and the support being fixed to an object with an added attachment means. According to the main characteristic, the attachment means overlaps at least once at least one turn of the antenna so that the radio frequency identification device (RFID) is destroyed if the support is detached from the object without the attachment means being removed.

Abstract: The invention concerns a device (10) featuring an optical reader (12) for printed codes capable of transforming the information of a code printed on an object such as a label into digital data, the object being equipped with a radiofrequency system featuring an antenna (27) and a chip (28) connected together. According to a main characteristic of the invention, the device features a radiofrequency dialog unit (15) designed to encode the chip (28) with digital data read from the printed code and to compare the digital data encoded in the chip with information from the printed code.

Abstract: A method for manufacturing a radiofrequency identification device which includes a manufacturing process for an antenna which includes screen-printing turns of an electrically conductive polymer ink onto a transfer paper sheet, and then subjecting the support to heat treatment to bake and polymerize the conductive ink, connection of a chip 14, provided with contacts, to the antenna 12, lamination which includes making the transfer paper sheet integral with a layer of plastic material 16 which constitutes the support for the antenna, by hot press molding, in such a way that the screen-printed antenna and the chip are both embedded within the layer of plastic material, and removal of the transfer paper sheet.

Abstract: An identity booklet such as a passport including a reinforced paper cover made up of a top cover board (16) and bottom cover board (14), an inside quire whose top (22) and bottom (20) flyleaves are laminated respectively at the back of the top cover board and in front of the bottom cover board and a radio frequency identification device (RFTD) made up of a chip (12) and an antenna connected to the terminals of the chip. The antenna includes a first part of the antenna (10) placed on the surface of the top and/or bottom cover board designed to be laminated with the corresponding flyleaf and a second part of the antenna placed on the surface of the top and/or bottom flyleaf designed to be laminated with the corresponding cover board, the first and second parts of the antenna being connected to constitute the antenna when the flyleaves are laminated with the cover boards.

Abstract: A data transmission device using electromagnetic wave radiation in a contactless transceiver system toward a contactless object, the data bits transmitted corresponding to the half cycle of an initial time interval during which electromagnetic waves are emitted at a predetermined carrier frequency and to a second splitting time interval during which there is a split in transmission of the electromagnetic waves at the predetermined carrier frequency. During said second splitting time interval, generation means (40, 42, 44, 46, 48) generate electromagnetic waves having a frequency which is double the predetermined carrier frequency resulting in an attenuation of the radiated field by the antenna greater than a predetermined value such as 30 dB.

Abstract: A method for modification of data in a card transaction system having a memory card and a reader for reading the card. The card has a first memory (RAM) and a second memory (EEPROM) with data locations occupied by data recordings. Each transaction involves the modification of at least one of the data locations or the addition of a new recording. The method reads the address of a free location from a previous control register located in a first fixed location in the EEPROM memory, writes the new modified recording or addition in the free location, repeat the steps for each new recording to be modified or added, and writes in a second fixed location in the EEPROM memory a new control register containing the addresses of free locations within the EEPROM memory to use in the next transaction.

Abstract: Method of manufacturing a chip card having an antenna support, two card bodies and an electronic module or a chip linked to the antenna. This method has a first lamination step which includes fusing two thermoplastic sheets (32, 34 or 62, 64) on each side of antenna support (10 or 40) at a temperature sufficient for the thermoplastic sheet material to soften and to flow wholly so as to eliminate any differences in thickness from the support, and a second lamination step carried out after a period of time necessary for the thermoplastic sheets (32, 34 or 62, 64) to be solidified, the second step including fusing by hot pressing two plastic layers (36, 38 or 66, 68) making up the card bodies onto the plasticised and even faces of uniformly thick antenna support (30 or 60) plasticised by the thermoplastic sheets.

Abstract: An anti-collision process for elements controlled by a host computer allowing the identification of elements by the latter, each of the elements having an identification number between 0 and a maximum value (MAX), and including transmission by the host computer of a query instruction able to be received and recognized by all elements, transmission by the host computer of an anti-collision instruction including an identification attempt digital value, response by any element having an identification number less than or equal to the digital identification attempt value, and detection of a collision between several elements when the host computer receives several responses and transmissions of a new anti-collision instruction according to a given algorithm, or selection of the element by its identification number when there is only one response.

Abstract: A device for the customization and automatic dispensing of single smart contactless tickets provided with a device to check the reliability of tickets and a device to customize the tickets, and including a storage location for tickets in the form of a vertical stack. The dispensing device includes a suction cup (20) provided with apparatus to control its vacuum and supported by a movable arm (31) moving along a vertical path, the suction cup enabling the unstacking and removal of a ticket (13) from the storage location and carrying it until it rests on a drive system, and an external antenna (24) adapted to check the reliability of the ticket initially at the time of unstacking.

Abstract: Electronic purse payment system in the form of a smart card in which payment of a purchase in a shop is performed by a payment terminal (20), by deducting the purchase amount from the amount in purse memory, the payment terminal being connected to a bank system including an authorization center (22), an acquisition system (24) for collecting all transactions made using the payment terminal and a centralized compensation system (26). The system includes an electronic till (14) located where the transaction occurs including at least a reading/writing device (40), a microprocessor (36), a memory (38) and a security application module (42) for giving authorization to perform the transaction, the purse memory being increased equal to the purchase amount when the purse memory is read by the reading/writing device so that management of a transaction made at the shop is achieved at the transaction location.

Abstract: The invention concerns a manufacturing process for a contactless smart card (or ticket) which includes the following steps: a manufacturing process for an antenna consisting in screen-printing turns of an electrically conductive polymer ink onto a transfer paper sheet, and then subjecting said support to heat treatment in order to bake and polymerize said conductive ink, connection of a chip 14, provided with contacts, to the antenna 12, lamination consisting in making the transfer paper sheet integral with a layer of plastic material 16 which constitutes the support for the antenna, by hot press molding, in such a way that the screen-printed antenna and the chip are both embedded within the layer of plastic material, removal of the transfer paper sheet, and lamination of the card body onto the antenna support by welding at least one layer of plastic material (18, 20) by hot press molding on each side of the support.

Abstract: A smart card including an antenna (18) on a support made of paper type fibrous material (12), two card bodies on each side of the support each consisting of at least one layer of plastic material having a low flow temperature, and an electronic module (26) featuring a chip connected to the antenna, the assembly made up of the antenna support and the two card bodies being welded together by hot-lamination under pressure. The support made of fibrous material includes at least one opening (14, 16) such that the plastic layers (23, 25) of the card body come into near perfect contact during the lamination operation, the opening forming a weld between the card bodies thus reinforcing the connection of the module.

Abstract: A peripheral display device for a portable contactless object such as a smart card (10) enabling information associated with the use of this portable object to be displayed. This peripheral device includes at least one chip, a display (16) and a receiver for receiving energy and information (18), not connected by an ohmic contact to the portable object. This receiver is a flat coil which plays the role of the secondary of a transformer, the primary of which is formed by the antenna (14) of the portable object, when the latter receives energy and information from a portable object reader via electromagnetic coupling.

Abstract: The invention concerns a contactless smart card comprising an antenna (12) on an antenna support (10) made of fibrous material, this antenna consisting of a turn and two contacts (14 and 16) screen printed on the antenna support, a card body (32 and 34) on each side of the antenna support, and a chip (26) provided with contacts (28 and 30), connected to the antenna. This card also features a chip support (20) made of fibrous material having two conductive strips (22 and 24), screen printed on the chip support (20), and to which the contacts (28 and 30) of the chip (26) are connected, the chip support (20) being positioned on the antenna support (10) so that the conductive strips (22 and 24) come into contact with the contacts (14 and 16) of the antenna and connect with the latter, and in such a way that the chip (26) is positioned in a cavity (18), made for this purpose in the antenna support (10).

Abstract: A method for connecting a chip (10) to a contactless smart card antenna having deformable contacts (18), the antenna being printed using conductive ink on an antenna support (16) made of deformable material. This method includes the steps of positioning the chip (10) provided with contacts (12) made of a non-deformable material, on the antenna support so that the contacts (12) are facing the contacts (18) of the antenna, and exerting a force on the chip (10) so that the contacts (12) deform the antenna support (16) and the contacts (18) of the antenna as a result of the pressure, the support (16) and the contacts (18) maintaining their deformation after the pressure is released, thus enabling a significant contact surface to be obtained between the contacts (12) of the chip (10) and the contacts (18) of the antenna.

Abstract: A portable contactless object (10) featuring a main chip (12) and a main antenna (14) enabling communication between the chip and the reader associated with the portable contactless object. This portable contactless object also features at least one contactless peripheral device (16), having a function different than that of the main chip not connected by ohmic contact to the latter and requiring only a small amount of energy to operate.

Abstract: A coupling antenna which includes a plurality of turns in series located on a planar support (14) formed by an insulating dielectric substrate. The antenna includes one or several sets of at least one turn (16) located on the planar support, mounted in series, at least one of the sets consisting of at least two spires (16,22) in series superposed along an axis perpendicular to the plane of the support and separated by an insulating strip (20) of dielectric ink, thereby resulting in a high inductance value. The invention also concerns the method for making such an antenna and the use of the antenna in a contactless smart card.

Abstract: A device for demodulating a modulated signal resulting from an amplitude modulation of a sinusoidal signal of frequency fo by a signal of frequency fm according to an unknown modulation rate, comprising a transistor (10) where the gate is connected to the modulated signal (Et) so as to obtain in the transistor (10) output a derived signal (St) equal to a power N of the modulated signal, N being an integer greater than 1, and a filter for selecting the frequency component fm in the transistor output signal. The device can be used to demodulate an amplitude-modulated signal received by a scanner of a system identifying contactless portable objects.

Abstract: The present invention relates to a contactless smart card manufacturing process and more specifically to a manufacturing process for a contactless smart card for which the antenna is on a fibrous material such as paper. This process includes a manufacturing step to screen print the antenna onto the support, a step to bond the contacts of the chip onto the antenna support using conductive glue, and a step designed to laminate the card body onto the antenna support by hot press molding. Cutouts made in the corners of the antenna support prior to the lamination step enable the card bodies to be bonded together. The card thus obtained allows a posteriori viewing of any mechanical misuse to which it may have been subjected (extreme bending).

Abstract: The invention thus concerns a coupling antenna connected to an electromagnetic wave transceiver device containing one or several integrated capacitors. This coupling antenna includes at least one screen printed turn (24) on a support (28) consisting of an insulating dielectric support and also includes a screen printed capacitor on the support, connected in parallel, thereby reducing the capacitance supplied by the capacitor(s) built into the device, so that the resulting capacitance forms a resonating circuit with the turn. The invention also concerns the fabrication process of such an antenna and the use of this antenna in a contactless or hybrid contact-contactless smart card.