Abstract: An electromagnetic ultrasound transducer is disclosed for receiving linearly polarized horizontal shear waves from an electrically conductive workpiece including a magnetizing unit, which provides a side facing the workpiece, along which a number n of permanent magnets are attached in at least two rows arranged next to one another in such a manner that the magnetic polarities of the magnetic poles which face the side alternate along a row periodically with a period length which corresponds to a trace wavelength ?s and a HF coil arrangement with conductor sections in at least two rows running parallel to one another, through which current can pass in mutually opposite directions.

Abstract: The invention relates to a method for producing a dispersion of nanoparticles having an essentially oxide-free surface in a liquid phase, a two-phase system being used. The invention relates furthermore to the dispersion produced with this method.

Abstract: The invention relates to a modular system for overlay welding at inwardly disposed surfaces of workpieces using a laser beam. In this respect, a coating can be formed on inwardly disposed surfaces using a powdery welding material. It is the object of the invention to provide possibilities for the overlay welding or for the coating of inwardly disposed surfaces of workpieces with a variable immersion depth, increased flexibility and independence of direction in the processing. A feed for powdery welding material, a feed for protective gas and a feed for a coolant are present on a system in accordance with the invention. The system is formed with a coupling module for the laser beam, at least one beam guiding module for the laser beam and a processing module, which can be connected to one another. A collimated laser beam is directed via the coupling module through the beam guiding modules) onto an optical element focusing the laser beam on the surface of a workpiece to be processed.

Abstract: An apparatus for providing one or more adjusted parameters for a provision of an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information includes a parameter adjuster. The parameter adjuster is configured to receive one or more input parameters and to provide, on the basis thereof, one or more adjusted parameters. The parameter adjuster is configured to provide the one or more adjusted parameters in dependence on the one or more input parameters and the object-related parametric information, such that a distortion of the upmix signal representation caused by the use of non-optimal parameters is reduced at least for input parameters deviating from optimal parameters by more than a predetermined deviation.

Abstract: A method and an apparatus for determining the permeation rate of barrier materials, with which in a measuring chamber (8.7) which has at least two shut-off elements (81; 8.2) for opening and closing, a concentration of at least one permeate is determined which, present as a test gas with a constant concentration in a test gas chamber (8.3), is permeated into the measuring chamber (8.7) through a barrier element (8.5) which is arranged between the test gas chamber (8.3) and the measuring chamber (8.7) and which has a known permeable surface (A).

Abstract: A method for exposing a layer buried in a substrate via a trench having an insulated lateral wall and an insulated floor includes the steps of applying an oxide onto the substrate and anisotropic etching. Applying the oxide onto the substrate takes place at least in a region of the trench such that the oxide protrudes from an edge of the trench into the trench. The protruding oxide shields the insulated lateral wall of the trench when anisotropically etching at least the insulated floor of the trench.

Abstract: The invention relates to the use of a substituted, chiral amino alcohol, comprising one or more structural units of the following formula (1), wherein the abbreviations A, Y, R1 and R3 to R5 have the following meanings: is a covalent bond or a hydrocarbon group, Y is a covalent bond or a hydrocarbon group that can have an oxygen atom at one of its ends through which it is bonded to R1, R1 is an aliphatic or heterocyclic or aromatic radical, the carbon chain of which may be interrupted by one or more B groups, R5 is selected from the group consisting of (a) aliphatic radicals, wherein individual carbon atoms may be replaced by oxygen atoms or carbonyl groups, and wherein the carbon chains of same radicals may be optionally interrupted by a B group, and (b) araliphatic, cycloaliphatic, aromatic and heterocyclic radicals, wherein the carbon chain can be interrupted by one or more B structural elements and/or by one or more D coupling groups, R3, R4 are hydrogen or aliphatic or araliphatic substituents, which are

Abstract: Exact data-rate analysis of the information signal portions to be transmitted in a subsequent transmission cycle per time-division multiplexing process shall be initially omitted. Instead, on the basis of highly accurate estimated values for the subsequent data rates, estimated values for relative waiting times are transmitted, in a current transmission cycle, from the current time slice to the subsequent time slice of the same service. In the subsequent transmission cycle, actual data rates may be set which may deviate from the estimated data rates for the individual information signals, as a result of which predicted time-slice boundaries for the subsequent transmission cycle may shift. However, the potential shift in the time-slice boundaries is subject to several boundary conditions. No time slice of the subsequent transmission cycle can start prior to its signaled estimated starting time. With constant data rates, the estimated time-slice structure and the actual time-slice structure are identical.

Abstract: Embodiments of the present invention provide an apparatus for amplifying an input-signal. The apparatus includes a switch-mode amplifier for amplifying a digital input-signal. The apparatus is characterized by a generator for generating the digital input-signal based on the input-signal, wherein the generator is configured to generate the digital input-signal such that the digital input-signal is located at a predefined frequency band and such that distortions are located at a frequency higher than the predefined frequency band.

Abstract: A system for determining a position of a moving object is described, having: an arrangement having at least three general lighting LEDs, wherein each of the general lighting LEDs is implemented to transmit one light signal each with a transmission time information and a transmitter information, wherein the wavelength ranges of the general lighting LEDs for the signal transmission overlap, wherein the transmitter information enables at least a determination of a position of the respective general lighting LEDs and the transmission time information is information on a point in time when the respective signal was transmitted; a light sensor mounted to the moving object and implemented to receive the light signals and allocate one signal receive time each; and an evaluation unit which is implemented to determine the position of the object based on the transmitter information, the transmission time information and the receive time information.

Abstract: An audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage. An audio decoder has a spectral domain decoding branch, an LPC-domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.

Abstract: An audio signal synthesizer generates a synthesis audio signal having a first frequency band and a second synthesized frequency band derived from the first frequency band and comprises a patch generator, a spectral converter, a raw signal processor and a combiner. The patch generator performs at least two different patching algorithms, each patching algorithm generating a raw signal. The patch generator is adapted to select one of the at least two different patching algorithms in response to a control information. The spectral converter converts the raw signal into a raw signal spectral representation. The raw signal processor processes the raw signal spectral representation in response to spectral domain spectral band replication parameters to obtain an adjusted raw signal spectral representation.

Abstract: Rectifier circuit including a pair of input terminals, a pair of output terminals, and a first circuit interconnecting the pair of input terminals. The first circuit includes an energy storing element and a rectifier bridge, wherein the rectifier bridge includes at least one controllable switching element per bridge branch. An output of the rectifier bridge supplies the pair of output terminals and wherein the at least one controllable switching element per bridge branch is configured to provide a temporary conducting path via the rectifier bridge which bypasses the pair of output terminals and which short-circuits a series connection of the energy storing element and an energy source connectable to the pair of input terminals. A converter for synchronized switch harvesting on inductor including such a rectifier circuit and a method for rectifying an electrical current generated by an energy source are also described.

Abstract: Resource management such as network radio resource management in wireless networks, is described in connection with different aspects.

Abstract: A flat panel loudspeaker with such an emission characteristic is obtained which, in the event of the flat panel loudspeaker being set up inversely, provides an improved listening result in that a loudspeaker is provided within the housing, and a sound conduction is configured such that sound from the loudspeaker is conducted outward via an acoustic aperture within the housing for undirected emission.

Abstract: A projection display includes at least one light source, at least one reflective image generator configured to represent frames in a two-dimensional distribution of subareas of same, a projection optics arrangement having a two-dimensional arrangement of optical projection elements and being configured to image an associated subarea of the at least one image generator onto an image plane in each case, so that images of the frames superimpose within the image plane to form an overall picture, and at least one beam splitter arranged within an optical path between the at least one reflective image generator and the two-dimensional arrangement of optical projection elements, on the one hand, and the optical path between the at least one light source and the at least one reflective image generator, on the other hand.

Abstract: A system for presenting information regarding an object provided within a plurality of information sources to a user or a presentation means depending on a location of the user or the presentation means includes a means for determining the location, a means for selecting the information to be presented depending on the determined location and on one or several pre-settable selection criteria defining an information source from the plurality of information sources, and a means for outputting the information to be presented.

Abstract: The invention relates to a method for continuous coating of substrates, in which the substrates are transported continuously through a deposition chamber and, at the same time, measures are adopted for reducing parasitic deposits as well as possible. Likewise, the invention relates to a corresponding device for continuous coating of substrates.

Abstract: A device for measuring a complexly formed object includes a plurality of light-section measuring devices, a rotator for causing a rotation between the complexly formed object and the plurality of light-section measuring devices around a rotation axis, wherein each of the plurality of light-section measuring devices is configured to generate a respective fan beam in a respective fan plane, wherein the fan planes are arranged such that the rotation axis extends within each of the fan planes, wherein the plurality of light-section measuring devices is configured such that the fan beams are directed to the complexly formed object from different fan directions which, when projected into a common plane through which the rotation axis extends, by rotation around the rotation axis, differ from each other.

Abstract: An encoder for encoding a sequence of symbols is described which has an assigner configured to assign a number of parameters to each symbol of the sequence of symbols based on information contained within previous symbols of the sequence of symbols; a plurality of entropy encoders each of which is configured to convert the symbols forwarded to the respective entropy encoder into a respective bitstream; and a selector configured to forward each symbol to a selected one of the plurality of entropy encoders, the selection depending on the number of parameters assigned to the respective symbol.