Abstract: Decoding device with a decoding module (4) that decodes digital digitally encoded image data. The decoding of said image data is dependent on the programming of an FPGA circuit.

Abstract: The interchangeable battery (2) for mobile radio telephones (3) comprises battery cells in a housing and electric feeding contacts (22) for powering the mobile telephone (3) as well as a radio interface (20-21), for example a RFID element, a GPS receiver, a radio clock signal receiver etc. Different batteries, which each operate according to another communication protocol, can be provided.

Abstract: Method for random-access communication in communication networks (1) with time-slotted transmission channels which are being accessed by a plurality of terminal devices (2), whereby the terminal devices (2) are provided with binary feedback (S/{overscore (S)}) by a common receiver (3), a positive feedback (S) indicating that a particular slot contained a successfully transmitted packet or a negative feedback ({overscore (S)}) indicating that the particular slot did not contain a successfully transmitted packet, and whereby dummy packets are transmitted by an auxiliary user (4) following the first negative feedback ({overscore (S)}) after a prior collision has been resolved to determine whether said negative ({overscore (S)}) feedback was due to a collision of packets in the respective slot or whether it was due to this slot having been empty.

Abstract: A system and method for communicating a key between two stations using an interferometric system for quantum cryptography. The method includes sending at least two light pulses over a quantum channel and detecting the interference created by the light pulses. The interfering pulses traverse the same arms of an interferometer but in a different sequence such that the pulses are delayed when traversing a quantum channel. The pulses are reflected by Faraday mirrors at the ends of the quantum channel so as to cancel any polarization effects. Because the interfering pulses traverse the same arms of an interferometer, there is no need to align or balance between multiple arms of an interferometer.

Abstract: Game system in which a plurality of participants transmit to at least one central play station (3) participant play data for taking part in at least one game (31, 32, 33) in special messages by means of mobile radio devices (2) through the mobile radio network (1). The central play station (3) carries out games according to predefined game rules and transmits central game data in special short messages through the mobile radio network (1) to the mobile radio devices (2) of the participants. The mobile radio devices (2) include a SIM card (21) for the game system, which has a memory, programmed means and a processor in order to show to a participant playing instructions and game results on a display (22) of a mobile radio device (2), and to convey the data to the central play station (3) by means of said special short messages, and to store a p repaid amount which can be used to pay for wagers and to which winnings can be booked.

Abstract: Transaction method for ordering goods or services by mobile telephone, an order for delivery being transmitted to the services provider via a mobile radio network. At least certain order data, in which at least a monetary amount is indicated, are packed in one or more SMS or USSD or e-mail short messages, and are transmitted to a validation platform connected to a short message service center. The indicated monetary amount is deducted from a monetary account of the customer and is transferred to a monetary account of the services provider.

Abstract: A method for loading or reloading a SIM card (7) for a mobile device (6). The SIM card (7) has an electronic chip with a storage device (11). In the storage device (11) a monetary sum (28) is stored, and decreases as the mobile telephone is used. For loading or reloading the monetary sum, a prepayable value card (13) is purchased. The value card (13) has a code field (14) covered by a removable opaque layer (22). Upon removal of the layer (22), a code (15) becomes visible. The holder of the SIM card and the value card calls a service number using a communication apparatus (6, 8). The caller is thereby connected to a data base (17) in which all codes assigned to value cards (13) and the sum of money associated with each code are stored. The caller is prompted to enter the code (15) on the calling communication apparatus. The code (15) entered is compared with the codes stored in the data base (6, 8).

Abstract: Billing method for billing a call by a subscriber identified with a SIM card (10) in a telecommunications system (2) to said subscriber, comprising: Determination of the duration of the call by means of a time-measuring device (100) integrated into the SIM card (10); Evaluation of the amount to be billed based upon the determined call duration and at least one tariff table stored in the SIM card (10). The tariff tables are stored in a tariff server (6), and can be remotely loaded into the SIM card (10) through said telecommunications network (2). Advantages: since all data for determining the invoiced amount are available on the SIM card, the billing takes place at the user directly at the source. No other billing system is required in the infrastructure.

Abstract: A subscriber identification SIM card for a mobile telephone comprises an advice of charge counter ACM indicating the amount corresponding to the communications carried out with the card. An EEPROM memory in the card includes a file ACMmax, indicating the maximum value of the advice of charge counter, and at least one file EFFDN indicating at least one telephone number free of charge. The invention compares the amount indicated by the advice of charge counter with the maximum amount of the advice of charge counter and blocks calls according to the result supplied. However, the invention does not block calls intended for one or more predetermined numbers stored on the card. It is thus possible to call, for example, an emergency number or the number of a server to reload the card, in the case of a prepayment card, even after the credit on the card has been used up.

Abstract: A chip card comprises a microprocessor able to execute a program recorded in memory and one or more removable portions, which may be, for example, pre-cut portions. The execution of the program can be modified by tearing off or cutting one or more of these portions. The program may include an instruction to test a register whose contents depend on the presence of one of the removable portions. Many applications, such as an electronic visiting card, are possible with the disclosed chip card.