A simplified compensation matrix is set up for the compensation of phase errors between the I and the Q component in data transmission systems with quadrature modulation or demodulation. A camera retrieves a stored object image. The rotor has a plurality of combustion chambers, with inlets for introduction of fuel and outlets for exhaust of combustion products. The parts of the material composite are connected to the regions of the intermediate piece which are in each case of the same type by means of a fusion or diffusion welding process. The sensor added information can be shared with other communication devices in the network to improve network capacity and add master devices to the network if needed to maximize the quality and efficiency of communications within the network.