Abstract: A method for allocating radio channels in a radio communications system having timeslots includes the steps of allocating the radio channel for the downlink direction to a mobile station as a function of a channel allocation pattern which indicates the transmission power levels for the timeslots. The mobile station corrects the allocation of the radio channel as a function of an interference pattern which indicates the interference power levels in the timeslots. The allocation process results in the transmission power level being distributed as uniformly as possible between the timeslots which are provided for a connection from the radio station in the downlink direction, wherein the allocation process is a function of the occupancy of the timeslots in accordance with the channel allocation pattern.

Abstract: A conveyor device contains a driven conveyor belt having a pluarlity of individual conveyor belt segments and a driving device. The conveyor belt segments present optical information.

Abstract: A circuit arrangement for making isolated voltage and/or current measurements on a transmission line is characterized in that a shunt branch between the go conductor (+) and the return conductor (−) contains a series combination of a transformer (T), a first optically controllable, clocked switching element (OS1), and a first resistor (R1), and/or that the go conductor (+) or the return conductor (−) contains a second resistor (R2) shunted by a series combination of a transformer (T) and a second optically controllable, clocked switching element (OS2). The measured voltage and current values can thus be taken off linearly to the voltages and currents of the transmission lines using simple means and only few active components, particularly without analog-to-digital converters and power supplies tied to the potential of the transmission line.

Abstract: A fringe deflectometry apparatus illuminates an optical component to be measured using radiation with a known wavefront, deflects the radiation after it has been reflected or transmitted by the optical component to be measured, and materializes a reference ray. Transverse aberration of the reference ray after reflection or transmission by the optical component is measured. A deflectometry method using the apparatus enables an absolute phase reference to be provided.

Abstract: Optical glasses or lenses are described having a refractive index that varies as a function of at least one coordinate, which is made from a starting material with a constant refractive index by ion exchange. Greater index gradients than with the prior art are achieved by special compositions and ion exchange baths intended therefor. In addition, the stability of the glasses is increased.