Alcatel Lucent

Alexander Thomas

Erhard Mahlandt

Heinz-Dieter Hettstedt

Gerd Klauke

Dietmar Brunsch

Axel Schröder

The present invention relates to a distributed antenna system for transmitting and/or receiving radio frequency, RF, signals, wherein said antenna system comprises at least one elliptical waveguide which comprises a plurality of openings. The present invention further relates to a method of manufacturing a distributed antenna system of the aforementioned type.

Distributed antenna system and method of manufacturing a distributed antenna system

The invention relates to a data slicer circuit for processing a voltage signal input having two voltage values, each value representative of a value assigned to one characteristic of a modulated baseband carrier signal corresponding to a binary one or zero bit of information, the data slicer comprising first means for detecting a rising transition segment of the voltage signal, first means for detecting a falling transition segment of the voltage signal, means for providing a first serial digital signal output with a binary zero value if a rising transition segment of the voltage signal is detected or a binary one value if a falling transition segment of the voltage signal is detected or vice versa.

Data slicer circuit, demodulation stage, receiving system and method for demodulating shift key coded signals

The invention relates to an optical transmission system comprising transmitter and receiver devices and comprising automatic optical signal level configuration means which provide the same fixed output signal level for a received signal level range, and the system comprising at least one automatic self-level unit in the transmitter device and at least one automatic self-level unit in the receiver device.

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Hannover, Germany

Alexander Thomas