Abstract: A secure multi-layered structure (14), for example, for a secure document, the secure multi-layered structure comprising a first layer (20) having a first aperture (25) opened in the first layer, a second layer (30) having a second aperture (35) opened in the second layer, and a third layer (40) having a third aperture (45) opened in the third layer, wherein each layer at least partially overlaps with the layer adjacent to it, at least a portion of the third layer being visible through the first aperture.

Abstract: A method of generating a multiplexed image for printing that can be observed in a plurality of modes includes determining a finite shape of a multiplexed palette in a combined color space. The contrast of the multiplexed image in each mode can be optimized by determining a maximum volume hyperrectangle enclosed in the finite shape. Gamut mapping to this maximum volume hyperrectangle allows for generation of a multiplexed image that has a maximum contrast and is free from artifacts caused by an interdependency between the colors in each mode. Performing a dimensionality reduction using PCA allows for reducing the complexity of the optimization problem.

Abstract: A method of generating a reduced palette for use in a printing process is disclosed. In the method, a plurality of images obtainable by varying printing parameters of the printing apparatus are printed, and color values of the same are measured. Based on the color values, a clustering is performed to obtain a plurality of clusters having similar color values. For each cluster, one or more representative images are selected to form the palette. In this manner, images with color values both inside a convex hull and on the convex hull can be included in the palette.

Abstract: A secure multi-layered structure (14), for example, for a secure document, the secure multi-layered structure comprising a first layer (20) having a first aperture (25) opened in the first layer, a second layer (30) having a second aperture (35) opened in the second layer, and a third layer (40) having a third aperture (45) opened in the third layer, wherein each layer at least partially overlaps with the layer adjacent to it, at least a portion of the third layer being visible through the first aperture.

Abstract: The present invention relates to a security document comprising at least an antenna and a chip connected to the antenna. The security document is characterised in that it further comprises at least one transparent window arranged such that at least a part of said antenna is visible in said window thereby forming a visible security feature.

Abstract: The method of manufacturing a functional inlay comprises the steps of: a support layer with at least a first and a second side a wire antenna in said support layer processing said support layer with said embedded wire antenna to a connection station in which said support layer is approached on said first side by a holding device holding a chip with a surface comprising connection pads; said support layer is approached on said second side by a connection device; and said antenna wire is connected to said connection pads by means of a reciprocal pressure exerted between said holding device and said connection device.

Abstract: The method of manufacturing a functional inlay comprises the steps of: a support layer with at least a first and a second side a wire antenna in said support layer processing said support layer with said embedded wire antenna to a connection station in which said support layer is approached on said first side by a holding device holding a chip with a surface comprising connection pads; said support layer is approached on said second side by a connection device; and said antenna wire is connected to said connection pads by means of a reciprocal pressure exerted between said holding device and said connection device.

Abstract: The method of manufacturing a functional inlay comprises the steps of: —) providing a support layer with at least a first and a second side —) embedding a wire antenna in said support layer —) processing said support layer with said embedded wire antenna to a connection station in which —) said support layer is approached on said first side by a holding device holding a chip with a surface comprising connection pads; —) said support layer is approached on said second side by a connection device; and —) said antenna wire is connected to said connection pads by means of a reciprocal pressure exerted between said holding device and said connection device.

Abstract: The method of manufacturing a functional inlay comprises the steps of: —providing a support layer with at least a first and a second side —embedding a wire antenna in said support layer —processing said support layer with said embedded wire antenna to a connection station in which —said support layer is approached on said first side by a holding device holding a chip with a surface comprising connection pads; —said support layer is approached on said second side by a connection device; and —said antenna wire is connected to said connection pads by means of a reciprocal pressure exerted between said holding device and said connection device.

Abstract: A method of manufacturing a chip card, such as a dual interface card, is provided. The method generally includes collocating multiple card support sheets one onto the other, depositing a conductive adhesive onto contact pads on at least one of the sheets, positioning a dual interface module in a recess established in at least one of the sheets, and executing a lamination step.

Abstract: A coupling device is formed by a continuous conductive path having a central section and two extremity sections, the central section forming at least a small spiral for inductive coupling with the transponder device, the extremities sections forming each one large spiral for inductive coupling with the reader device, wherein the small spiral shows a larger pitch than the ones of the large spirals, and wherein the two extremities of the continuous path are loose such that the coupling device forms an open circuit. The pitches of the large spirals are chosen such as that the interturn stray capacitances is important and that the large spirals have mainly a capacitive behavior. And the pitch of the small spiral is chosen such as that the interturn stray capacitances are negligible, and that the small spiral has mainly an inductive behavior.

Abstract: The invention concerns a method for making smart cards capable of operating with or without contact called mixed cards and contactless smart cards. In order to avoid the risk of deteriorating the antenna the method consists in producing an antenna comprising at least two turns, on a support sheet, said antenna having its turns located outside the connecting pads, and in providing an insulating bridge so as to connect each of the antenna ends to a connection pad respectively.

Abstract: The invention concerns a method for making smart cards capable of operating with or without contact called mixed cards and contactless smart cards. In order to avoid the risk of deteriorating the antenna the method consists in producing an antenna comprising at least two turns, on a support sheet, said antenna having its turns located outside the connecting pads, and in providing an insulating bridge so as to connect each of the antenna ends to a connection pad respectively.

Abstract: The invention concerns a method for making smart cards capable of operating with or without contact called mixed cards and contactless smart cards. In order to avoid the risk of deteriorating the antenna the method consists in producing an antenna comprising at least two turns, on a support sheet, said antenna having its turns located outside the connecting pads, and in providing an insulating bridge so as to connect each of the antenna ends to a connection pad respectively.

Abstract: The invention concerns a method for making smart cards capable of operating with or without contact called mixed cards and contactless smart cards. In order to avoid the risk of deteriorating the antenna the method consists in producing an antenna comprising at least two turns, on a support sheet, said antenna having its turns located outside the connecting pads, and in providing an insulating bridge so as to connect each of the antenna ends to a connection pad respectively.

Abstract: The invention concerns a method for making smart cards capable of operating with or without contact called mixed cards and contactless smart cards. In order to avoid the risk of deteriorating the antenna the method consists in producing an antenna comprising at least two turns, on a support sheet, said antenna having its turns located outside the connecting pads, and in providing an insulating bridge so as to connect each of the antenna ends to a connection pad respectively.

Abstract: A coupling device is formed by a continuous conductive path having a central section and two extremity sections, the central section forming at least a small spiral for inductive coupling with the transponder device, the extremities sections forming each one large spiral for inductive coupling with the reader device, wherein the small spiral shows a larger pitch than the ones of the large spirals, and wherein the two extremities of the continuous path are loose such that the coupling device forms an open circuit. The pitches of the large spirals are chosen such as that the interturn stray capacitances is important and that the large spirals have mainly a capacitive behaviour. And the pitch of the small spiral is chosen such as that the interturn stray capacitances are negligible, and that the small spiral has mainly an inductive behaviour.

Abstract: A method for manufacturing a dual interface card includes at least the following step: collocating multiple card support sheets one onto the other, some of these sheets showing holes, in order to form a recess adapted to receive the dual interface module, one of the sheets supporting the antenna having solid metallic contact pads at least partially freely accessible in the recess depositing a conductive adhesive onto the contact pads positioning the dual interface module in the recess such that the pads of the module are contacting the conductive adhesive executing one single lamination step of the sheets with the module in order to: laminate the multiple layers together in order to form the card body embed the dual interface module in the recess and achieve the curing of the isotropic conductive adhesive and the permanent electrical contact between the antenna and the dual interface module.

Abstract: A contactless transponder unit is provided which comprises a chip module, a first antenna connected to two upper conductive contact zones of the chip module and a second antenna connected to two lower conductive contact zones of the chip module. The chip is configured in such a way as to operate the first antenna at a first frequency range and the second antenna at a second frequency range, the first frequency range being different than the second frequency range.

Abstract: A method for making a contactless chip card of the type having an electronic module, and an antenna connected to the module, includes the following steps: producing, on a first support sheet, the antenna with connection terminals provided at its ends; producing an insulating bridge partly covering the antenna coils except for the connection terminals; depositing a drop of filling material on the insulating bridge; transferring the electronic module, with its connection pads being oriented towards the insulating bridge; and providing an electric connection between the module contact pads and the antenna connection terminals.