Abstract: The invention relates to a multimedia system having a computer, which has a browser for accessing an address, in particular an IP address, a card reader connected to the computer and at least one data card having a card code and insertable in and readable by the card reader, the card reader producing a data signal dependent on the card code for the computer. The data signal of the card reader is designed so that it corresponds to keyboard signals for the direct control of the browser using a certain address.

Abstract: The invention relates to a navigation device comprising a read device and at least one information card, the latter containing a code arrangement that can be read by the read device and that controls the navigation device to arrive at a predefined destination. The code arrangement consists of conductive organic polymers.

Abstract: The invention relates to a domestic appliance comprising a read device and at least one information card, the latter containing a code arrangement that can be read by the read device and that controls the domestic appliance. The code arrangement consists of conductive organic polymers.

Abstract: The invention relates to a method for producing a three-dimensional circuit having at least two superimposed, flexibly formed substrate layers comprising conductor paths and/or circuit elements composed of electrical functional materials. The method has a combination of the following method steps: a. using a continuous sheet of material for the at least two substrate layers, b. printing the electrical functional materials onto the substrate layers, c. providing at least one folding or bending edge in the sheet of material in order to delimit the at least two substrate layers from each other, the folding operation being carried out inline with the printing operation, d. folding the sheet of material about the folding or bending edge after the conductor paths and/or circuit elements have been printed on, so that the at least two substrate layers are arranged one above the other.

Abstract: The invention relates to a keyboard and to a method for producing a keyboard for activating electrical switching functions, comprising: a first substrate having a first contact structure; a second substrate having a second contact structure, and; an intermediate layer that holds both contact structures at a distance from one another and enables a contacting of both contact structures when pressure is exerted upon predetermined areas of the keyboard. Both contact structures are imprinted by means of a mass printing process.