Abstract: The invention discloses a semiconductor optoelectronic micro-device comprising at least one cavity and at least one multilayer interference reflector. The device represents a micrometer-scale pillar with an arbitrary shape of the cross section. The device includes a vertical optical cavity, a gain medium and means of injection of nonequilibrium carriers into the gain medium, most preferably, via current injection in a p-n-junction geometry. To allow high electric-to-optic power conversion at least one contact is placed on the sidewalls of the micropillar overlapping with at least one doped section of the device. Means for the current path towards the contacts and for the heat dissipation from the gain medium are provided. Arrays of micro-devices can be fabricated on single wafer or mounted on single carrier. Devices with different cross-section of the micropillar emit light at different wavelengths.

Abstract: In one embodiment, a TDD repeater system comprises: a master unit comprising separate uplink and downlink signal paths defined therein, and configured to couple in an uplink direction to a base station and in a downlink direction to at least one remote antenna unit, wherein the uplink path communicates uplink communication signals, wherein the downlink path communicates downlink communication signals; a switch configured to change direction of signal transmissions within the master unit between the uplink communication signals and the downlink communication signals; a synchronizing unit is configured to receive via the downlink signal path a clock signal from the downlink communication signals, wherein the synchronizing unit supplies a control signal to the switch corresponding to the clock signal; wherein the switch swaps the direction of signal transmissions within the master unit between the uplink communication signals and the downlink communication signals in response to the control signal.

Abstract: Sound capturing which includes applying a far-field microphone functionality to a multiplicity of first microphone signals to provide a first output signal, and applying a less directional microphone functionality to one or more second microphone signals to provide a second output signal.

Abstract: Techniques are provided to more accurately determine reflected power, reflection coefficient, and/or voltage standing wave to permit prompt protection of components such as power amplifiers and notify communication system operators. This is accomplished by more accurately determining an amplitude and phase of an output reflected signal at an output port of a bidirectional coupler as a function of the following: an amplitude and a phase of a coupled forward signal coupled into a forward coupled port of the bidirectional coupler; an amplitude and a phase of a coupled reverse signal coupled into a reverse coupled port of the bidirectional coupler; an electrical transmission parameter from an input port of the bidirectional coupler to the forward coupled port; an electrical transmission parameter from the input port to the reverse coupled port; and an electrical transmission parameter from an output port of the bidirectional coupler to the reverse coupled port.

Abstract: The present invention relates to an optical waveguide, comprising an optical wave-guiding core, a region in the optical waveguide, wherein the micro-modifications are arranged in the region of the optical waveguide, wherein the arrangement of the micro-modifications is ordered, and to a method for producing an optical waveguide according to the invention.

Abstract: A subsection 100 of a tower section comprises a shell segment 120 of the tower section and at least a longitudinal flange 130 mounted to a longitudinal side of the shell segment 120 for connecting to a longitudinal flange of a further subsection of the tower section. Here, the longitudinal flange 130 comprises a part 132 of a surface contour extending from a contact surface 136 of the longitudinal flange 130 which is provided for a connection to a longitudinal flange of a further subsection to a connecting surface 134 connected to the shell segment 120. The part 132 of the surface contour comprises a distance to a contacting plane 106 passing through the contact surface 136.

Abstract: A method for detecting parked vehicles, wherein parking regions in a parking area are identified and/or defined, a transponder is arranged in or on a vehicle, the transponder automatically repeatedly transmits an identification signal, the identification signal is received by at least one radio device, a position of the vehicle is calculated and an identification of the transponder is determined by means of a control device on the basis of the identification signal, it is determined whether the vehicle is one of the parking regions, it is determined on the basis of the identification signal whether the vehicle is parked, provided that the vehicle is parked in one of the parking regions, the identification of the transponder and the parking region used by the vehicle are transferred to a registration server, and the registration server outputs a status signal for the parking region used on the basis of the identification of the transponder.

Abstract: A telecommunications system can include analog-to-digital converters in an uplink communication path or a downlink communication path. The analog-to-digital converters can have a high dynamic range and bandwidth to obviate a need for down-conversion of signals using an analog mixer. The uplink communication path and the downlink communication path can be coupled to an antenna using a non-duplexer coupling device. Uplink signals traversing the uplink communication path can be isolated from downlink signals independent of using a duplexer.

Abstract: A method and apparatus for determining placement of a plurality of simulated antennas of a simulated distributed antenna system (DAS) for handling simulated MIMO signals in a simulated environment includes: at a first simulated location, simulating communication of a first simulated MIMO signal by a first remote unit over a first simulated air interface; at a second simulated location, simulating communication of a second simulated MIMO signal by a second remote unit over a second simulated air interface; the first simulated location and the second simulated location arranged within the simulated environment to provide overlapping simulated signal coverage of both the first simulated MIMO signal and the second simulated MIMO signal at a third simulated location; and analyzing at least a first simulated received power of the first simulated MIMO signal and a second simulated received power of the second simulated MIMO signal at the third simulated location.

Abstract: The invention relates to a device with a planar mirror (1), comprising a first axis of symmetry (A), and an actuating and holding means (10) with a frame (2), said frame (2) being firmly connected to the peripheral surface (1.3) of the planar mirror (1) and centrally contacting the rear surface (1.2) of the planar mirror (1). There is a socket (3), which is linearly adjustable along the axis of symmetry (A) in the frame (2) and is firmly connected, via a membrane spring (8), to the frame (2), on the one hand, and to a crown-like adjusting element (5), on the other hand. The crown-like adjusting element (5) has crown spikes which act on retaining lugs (6) connected to the planar mirror (1) and deform them, thereby applying forces corresponding to said deformation into the planar mirror (1) in order to deform the latter.

Abstract: A blind for closing an opening of a storage compartment in a central console of a motor vehicle is provided. In order that a linear guide means of the blind has a small curve radius, the invention proposes to construct the blind with chain members onto which slats are snapped.

Abstract: A recirculation fuel cell device, which can be utilized on a submarine, may include a fuel cell with an anode side and a cathode side, wherein both the anode and cathode sides have input and output sides. The device may include a first inlet for oxygen and a second inlet for hydrogen. The device may further include a cathode-side connection between the output side of the cathode side and the input side of the cathode side, and an anode-side connection between the output side of the anode side and the input side of the anode side. A water separator may be disposed in the cathode-side connection, and a gas discharge valve for a continuous release of process gases may be disposed on the output side of the cathode side of the fuel cell. Operation of the device may involve recirculating an anode gas stream in its entirety.

Abstract: An example loudspeaker arrangement includes a seat configured to support a listener sitting in the seat so that a head of the listener is in a listening position; and a loudspeaker array secured to the seat and disposed in a position in front of a backrest of the seat and to the side of the head when the head is in the listening position. The loudspeaker array includes at least one loudspeaker and has a main broadcasting axis representative of a main broadcasting direction, the main broadcasting direction of the loudspeaker array pointing to the head.

Abstract: A sequenced transmit muting wideband power amplifier is provided that includes at least one pre-driver stage having at least a first pre-driver and a second pre-driver. A mute switch selectively establishes a communication path between the first and second pre-drivers or couples the second pre-driver to a termination resistor. A pre-driver switch selectively activates/deactivates the first and second pre-drivers. A driver stage is in communication with the pre-driver stage and includes a first driver. A final amplifier stage is in communication with the driver stage and includes at least one second driver. At least one S-NBS switch is configured to selectively activate/deactivate the first driver and second driver. A controller is configured to activate the at least one pre-driver switch, the mute switch, the at least one S-NBS switch to selectively place the amplifier in one of a transmit mode and a mute mode.

Abstract: An energy supply apparatus may be modular and can be used underwater. In some examples, the modules comprise pressure vessels. The modules are chosen independently of each other from a group comprising a battery module, a fuel cell module, and air-independent Diesel module. The pressure vessels may be cylindrical and may have spherical segments disposed at ends segments of the pressure vessels. One or more of the spherical segments of the pressure vessels may be configured to be swiveled. Modules that are configured as battery modules may include battery elements, an inverter, a battery monitoring system, a separating unit, a control unit, a transformer, and/or a cooling unit.

Abstract: A phase shift device includes a planar transmission line that is formed by a signal electrode and a ground electrode which are separated by a dielectric substance, whereby the signal electrode of the planar transmission line is divided into several pieces and includes overlapping areas of adjacent pieces that are filled with a tunable liquid crystal material, thereby forming a dielectric tunable component (varactor) with a metal-insulator-metal type capacitor. The several pieces of the signal electrode are arranged at two or more different distance levels with respect to the ground electrode. The tunable liquid crystal material is arranged as a continuous layer between several pieces of the signal electrode that are arranged at two different distance levels.

Abstract: A plurality of speakers are arranged within a listening space. An audio processor is configured to generate a plurality of sound zones within the listening space using the plurality of speakers. The audio processor is programmed to create zone audio signals to generate at least one bright zone in the plurality of sound zones, perform individual delay compensation to the zone audio signals to add additional delay to a subset of the plurality of speakers, the additional delay defined to adjust acoustical output from the subset of the plurality of speakers to match an amount of delay of a most-delayed speaker of the plurality of speakers to the plurality of sound zones, and transmit the zone audio signals to reproduce the at least one bright zone by the plurality of speakers.

Abstract: The present invention relates to a device for adjusting the support height of a retaining mechanism of a base profile of a floor profile arrangement for receiving, so as to attach, a covering profile for joints.

Abstract: An exterior aircraft light unit includes a housing; a mounting structure, mounted to the housing and extending away from the housing substantially along a first cross-sectional plane; a lens cover, mounted to the housing, surrounding the mounting structure, and defining an inner space of the exterior aircraft light unit, with the mounting structure dividing the inner space of the exterior aircraft light unit into a first partial inner space and a second partial inner space; a plurality of anti-collision light sources, configured to emit respective sequences of warning light flashes in operation.

Abstract: In an example, a node of a telecommunications system includes a first section having one or more passive components; a second section including one or more power amplifier modules and a power supply, wherein the second section is coupled to the first section using fasteners; a distribution unit including a plate and a circuit board, wherein the second section is coupled to the distribution unit using fasteners; a cooling section; a first plurality of heat pipes extending from the one or more power amplifier modules to the cooling section; a second plurality of heat pipes extending from the first section into the second section; and a housing enclosing the first section and the second section.