Abstract: The invention relates to a method for operating a gateway wherein the method comprises to detect a downlink data packet session transmitted to the first user entity, and to amend the lifetime indicator in at least some of the data packets of the detected downlink data packet session such that the data packets for which the lifetime indicator has been amended, have reached the end of the lifetime and cannot be transmitted further when arriving at the first user entity.

Abstract: The invention relates to a method for operating a gateway wherein the method comprises to detect a downlink data packet session transmitted to the first user entity, and to amend the lifetime indicator in at least some of the data packets of the detected downlink data packet session such that the data packets for which the lifetime indicator has been amended, have reached the end of the lifetime and cannot be transmitted further when arriving at the first user entity.

Abstract: The invention relates to a method for operating a gateway wherein the method comprises to detect a downlink data packet session transmitted to the first user entity, and to amend the lifetime indicator in at least some of the data packets of the detected downlink data packet session such that the data packets for which the lifetime indicator has been amended, have reached the end of the lifetime and cannot be transmitted further when arriving at the first user entity.

Abstract: The invention relates to a method for operating a gateway wherein the method comprises to detect a downlink data packet session transmitted to the first user entity, and to amend the lifetime indicator in at least some of the data packets of the detected downlink data packet session such that the data packets for which the lifetime indicator has been amended, have reached the end of the lifetime and cannot be transmitted further when arriving at the first user entity.

Abstract: In a substrate with a hydrophilic surface and a structure made of a conductive and/or light-emitting organic polymer imprinted on the hydrophilic surface, the hydrophilic surface is formed from a layer arranged on the substrate of an oxide ceramic and/or metallic material.

Abstract: An item bearing an image printed with at least one ink that is fluorescent under ultra-violet radiation of specific wavelength is such that the image comprises two partial images, whereby a first partial image in a red fluorescent ink and the second partial image in a green or blue fluorescent ink are arranged as negative images with respect to each other in such a manner that to an observer simultaneously viewing both partial images, each eye individually through a colour filter that is selected for each of the fluorescent colours of both partial images, the partial images appear as a three-dimensional image. A preferred application for the item is for packaging, packing materials, packing aids, bonds or entry tickets with counterfeit-proof and/or optically demanding surface area.

Abstract: An item with a surface area creating an optical effect to increase protection against forgery is such that the surface area with the optical effect exhibits at least two images (12, 14) spaced a distance (d) apart. A first image (12) is situated on the surface (11) of a layer of material (10) and the second image (14) is virtual and, by holographic coding, appears to lie a distance (d) from the first image (12). By changing the angle of viewing, the optical perception of the whole image formed by the overlapping of the images (12, 14) changes, whereby the images (12, 14) are matched with respect to each other such that they demonstrate Moiré interference effects. A preferred application for the item is packaging, packaging material, packaging aids, bonds or entry tickets with forgery-proof and/or optically demanding surface area.

Abstract: A method for optimizing colored images emitted by a color printer on the non-white surfaces of substrates and for optimizing the amounts of printing ink used, wherein an image motif is processed by a computer-assisted image processing system in order to form a master copy which is ready for output. The method determines, for each pixel, whether and with what color density, a white underprint can be applied to a corresponding pixel, using an algorithm based on overall color density SF. The surface of the substrate is thus only underprinted with white on the pixels of the master copy where the overall color density is lacking or low.

Abstract: A method for optimizing colored images emitted by a color printer on the non-white surfaces of substrates and for optimizing the amounts of printing ink used, wherein an image motif is processed by a computer-assisted image processing system in order to form a master copy which is ready for output. The method determines, for each pixel, whether and with what color density, a white underprint can be applied to a corresponding pixel, using an algorithm based on overall color density SF. The surface of the substrate is thus only underprinted with white on the pixels of the master copy where the overall color density is lacking or low.