Abstract:
The invention relates to an electronic toll system for traffic routes, said system being designed on the basis of commercial GSMIUMTS mobile telephones or comparable appliances such as a PDA, car phones etc., with a GSM function, and to a method for the operation thereof. In each mobile radio network, data of the respective radio cell is transmitted to the radio telephone via an organization channel. According to the invention, said information supplied by the base transceiver stations is used to record the radio cells crossed by the toll customer. The collected data is transmitted to a central toll station. The toll traffic route taken by the vehicle can be deduced with high precision, by comparison with databases relating to existing traffic routes, on the basis of the series of crossed radio cells transmitted by the terminal of the toll customer. According to the invention, no changes need to be carried out on the hardware of current mobile radio systems and terminals. The existing mobile radio terminals radio telephones etc., are generally available for toll customers and can be used thereby.
Abstract:
A printed circuit board for connectors in symmetrical communications and data systems engineering distribution systems, which includes a pair of substantially parallel circuit board tracks on a front face thereof arranged substantially congruently with a pair of substantially parallel circuit board tracks of a back face of the printed circuit board, and wherein one of the pair of tracks on the back face crosses over the other track of the pair by means of two through-hole platings, which are electrically interconnected on the front face through an interconnecting circuit board track.
Abstract:
A coupling device between a glass fiber and a dielectric waveguide integrated on a substrate. A low-loss and low-back-scatter, but cost-effective coupling is achieved by that the fiber end being reduced--principally by drawing under heat exposure until breaking--to a diameter in the order of typical core dimensions of dielectric waveguides. A fiber receiving portion is provided on the substrate dimensions reduced in a way substantially corresponding to the glass fiber and the tip thereof changing over into the waveguide to be coupled. The glass fiber, during assembly, need only be inserted into the receiving portion up to a stop, where it is centered with respect to the waveguide, without tolerances.
Abstract:
The invention relates to an electronic toll system for traffic routes, said system being designed on the basis of commercial GSMIUMTS mobile telephones or comparable appliances such as a PDA, car phones etc., with a GSM function, and to a method for the operation thereof. In each mobile radio network, data of the respective radio cell is transmitted to the radio telephone via an organization channel. According to the invention, said information supplied by the base transceiver stations is used to record the radio cells crossed by the toll customer. The collected data is transmitted to a central toll station. The toll traffic route taken by the vehicle can be deduced with high precision, by comparison with databases relating to existing traffic routes, on the basis of the series of crossed radio cells transmitted by the terminal of the toll customer. According to the invention, no changes need to be carried out on the hardware of current mobile radio systems and terminals. The existing mobile radio terminals radio telephones etc., are generally available for toll customers and can be used thereby.