Abstract: A system for enabling the delivery of a dispatch in a postal operator's messaging network, wherein the applied receiver's address is a receiver-specifying virtual address. The system is adapted to signal the virtual address to a first database carrier and to return, in response to signaling, an operator's server address relevant to the virtual address. In addition, the system is adapted to send the dispatch to the operator's server address, as well to use a delivery address, which matches the virtual address on a second database carrier, for enabling a delivery of the dispatch in a postal operator's messaging network.

Abstract: The invention relates to a method and apparatus for detecting artifacts in a bioelectric signal, especially in a frontal EEG signal. In order to accomplish an uncomplicated mechanism for detecting artifacts in clinical applications, an impedance signal is measured through a first electrode set attached to the skin surface in a measurement area of a patient's body, the impedance signal being indicative of the impedance of the signal path formed between individual electrodes of the set. Simultaneously with the impedance measurement, a bioelectric signal is acquired through a second electrode set also attached to the skin surface of the measurement area, and the time periods are determined during which the impedance signal fulfills at least one predetermined criterion indicative of the presence of artifact in the bioelectric signal. In one embodiment, the first and second electrode sets are formed by a common set of two electrodes.