Abstract: A data transmission method is described, where first data is transmitted to a first processor, then second data based on the first data is transmitted to a second processor, and a check result is transmitted back to the first processor. This permits an independent check of data transmitted to a first processor by a second processor, so that abuse or prohibited use of first data in the first processor can be prevented.

Abstract: A straightening apparatus for large diameter thick wall pipe has an expander head at one end of a beam inserted into the pipe and having a radially displaceable saddle positionable at any selected location along the beam. The saddle may be shifted along the beam by a linear actuator and the saddle applies a radial force to the inner wall of the pipe in a bending operation.

Abstract: A method and a device for the hot-repairing of the heating flues of a coke-oven battery according to which the completed sections of a heating flue still under construction are heated by means of a heated gas. The heated gas comprises the air usually provided for combustion in the heating flues during coking operations. The air is guided through the flow paths provided for in the coke-oven battery for combustion air and waste gases as well as through the regenerator, heated as it passes through the flow paths and then guided through the heating flues to be repaired. The completed section of the heating flue is separated from the non-completed portion by an air-reversion device that also directs the heated air.

Abstract: A radio receiver for use in a vehicle, the radio receiver including a hard-disk drive having a hard disk, on which data can be stored in a non-volatile manner on storage locations of the hard disk, and a write-read memory so that data stored on the hard disk can be transferred into the write-read memory and can be displayed on a display device.

Abstract: A data transmission method is described, where first data is transmitted to a first processor, then second data based on the first data is transmitted to a second processor, and a check result is transmitted back to the first processor. This permits an independent check of data transmitted to a first processor by a second processor, so that abuse or prohibited use of first data in the first processor can be prevented.

Abstract: A device of a vehicle for data transmission to a stationary beacon 91), which has a transceiver, comprising an on-board unit (2) with an antenna (6) for receiving a continuous signal (5), broadcast by the beacon (1), and for transmitting the received signal (5) back after modulation with a data signal (i(t)), is characterized in that the signal (7) transmitted back by the on-board unit (2) is a double-sideband signal. In that case, the on-board unit (2) can be designed as extremely simply and in the simplest case comprises a diode (9) connected to the base of the antenna (6).

Abstract: A method and a circuit arrangement for combining several data channels with a transmission channel in which the carrier signal has at least two digital data signals, each with a different frequency, superimposed on it in terms of time. The superimposed signal is transmitted and received by a receiving device. The receiving device decodes the digital data signals and can pass them on, separately, to corresponding devices for further processing. The method and circuit arrangement may be advantageously used for data transmission between a motor vehicle and a fixed beacon. The data to be transmitted may contain traffic guidance data, or data for billing road use fees, for example.