摘要:
The invention relates to an audio conferencing device comprising at least one base conferencing unit consisting of at least three signal gates each of which comprises a digitised audio signal input and a digitised audio signal output, wherein the base conferencing unit is embodied in such a way that a terminal or an other base conferencing unit is connectable to a signal gate by means of a coupling device in such a way that an audio conferencing device expandable according to the number of participants is provided or spatially and the base conferencing unit is embodied in such a way that it makes it possible to carry out an audio conference between the terminals or the base conferencing units connectable thereto and wherein the inventive device also comprises a remote coupling unit for connecting the base conferencing unit to at least one spatially remote base conferencing unit in such a way that it is possible to carry out a spatially extended audio conference. An autonomous modular audio conferencing system which consists of at least two spatially separated conferencing units and is flexibly expandable is also disclosed.
摘要:
A specific processing of information signals that is separate according to modulation portions and carrier portions is made possible by an arrangement for processing an information signal (14). The arrangement comprises a device (20) for converting the information signal (14) into a time/spectral representation by a block-by-block transformation of the information signal, and comprises a device (22) for converting the information signal of the time/spectral representation into a spectral/modulation spectral representation. This device (22) for converting is designed in such a manner that the spectral/modulation spectral representation is dependent on both an amount portion as well as on a phase portion of the time/spectral representation of the information signal (14). A device (24, 40) then carries out a manipulation or modification of the information signal (14) in the spectral/modulation spectral representation in order to obtain a modified spectral/modulation spectral representation. Another device (26) forms, in the end, a processed information signal (18) that represents a processed version of the information signal (14) based on the modified spectral/modulation spectral representation.
摘要:
The invention relates to an angular rate sensor for detecting a rotation. Said sensor comprises the following components: a substrate, at least one oscillating element that can be excited so as to oscillate rotationally or radially, an anchor structure, one or several detecting elements, one or several joining elements that connect the detecting element/s to the oscillating element, a mechanism for exciting the oscillating element, and a device for detecting a radial or rotational oscillation of the detecting element/s. Each of the detecting elements can oscillate radially on the same plane on which rotational oscillation of the oscillating element occurs, or vice versa, while the centrifugal force Fz caused by the rotational oscillation can trigger substantially no radial movement of the detecting element/s or the oscillating element/s. Also disclosed are different methods for operating said sensor.
摘要:
The inventive photo-electrochemical solar cell module comprises at least two solar cells having first (1) and second (1') substrates between which an electroconductive transparent layer (2), a porous chromatophore layer (3) and a second electroconductive layer (5) are disposed, wherein said solar cells are separated from each other by an insulating web comprising, in at least some areas, a conductor strip (6), each solar cell provided with at least one filling orifice for filling said cell with die and/or electrolyte, wherein the second electroconductive layer (5) comprises, on the side thereof opposite to a separating layer, a channel and/or spacer-shaped profile for forming cavities for receiving and transmitting the die and/or electrolyte.
摘要:
Disclosed are oleophobic inorganic membranes and a method for the production thereof. Said membranes can be used before the fuel adsorbers of aeration systems in fuel systems and make it possible to separate the liquid fuel and the fuel vapor phase.
摘要:
The invention relates to an electronic device (1), in particular, an electric machine with integrated power electronics, whereby a simple and reliable contacting of windings (2) with the power electronics with thermal decoupling of the winding (2) from the power electronics is achieved by a connection of the winding wire (3) of a winding (2) to a first electrically-conducting layer (4) by means of a contact point (10). The first electrically-conducting layer (4) is applied to a thermally-conducting and electrically-insulating cooling element (11, 13) and the first electrically-conducting layer is formed such that the thermal resistance between the first electrically-conducting layer (4) and the cooling element (11, 13) is small relative to the thermal resistance of the winding wire (3) between the winding head (9) and the contact point (10). At least one electrically-conducting connection (5) from the first electrically-conducting layer (4) to further electronic components (7, 8) is provided.
摘要:
The invention relates to a method for non-destructive error diagnosis of composite components provided with metallic or ceramic foam core making it possible to detect errors inside the core with a high certainty although said foam core exhibits heterogeneous properties. For this purpose, according to said invention, the composite element provided with the metallic or ceramic foam core is connected to elements by material fit on at least two opposite sides and the elements are made of a homogenous material at a constant sound speed. At least one actuator which makes it possible to inject ultrasound waves having predetermined frequency into the composite element is mounted on the external surface thereof. A sound detector is mounted at a predetermined distance from the actuator on the surface of the opposite element and makes it possible to determine, in each case, the time required in order to a predetermined threshold value of the detected measuring signals of the ultrasound waves is exceeded. In addition or alone, the maximum value of the absolute value of the detected measuring signals of the ultrasound waves can be determined during a time interval between the beginning of the injection of the ultrasound waves and a prederminable moment.
摘要:
A synthetic, soluble, endogenous complex formed from at least one component A and at least one component B, whereby component A comprises a binding domain for extra-cellular surface structures that internalize upon binding of component A of said complex, and component B has a constitutive catalytic kinase activity and effects cell biosynthesis/signalling including cell death after internalization. The complex allows to influence the growth and the physiology of cells. In particular said complex, nucleic acid molecules encoding it, cells transfected or transformed with these nucleic acid molecules are usable for the preparation of medicaments for the treatment of proliferative diseases, inflammatory diseases, allergies and autoimmune diseases.
摘要:
The invention relates to a device for processing a multi-channel signal comprising a unit (12) for determining a similarity between the first of two channels and the second of two channels. The device is also equipped with a unit (16) for carrying out a predictive filtering of the spectral coefficients, said unit being configured to carry out a predictive filtering by means of a single predictive filter (16a) for both channels, if the first and second channels are very similar and to carry out a predictive filtering by means of two separate predictive filters (16b), if the first and the second channels are dissimilar. This prevents the introduction of stereo artefacts and a degradation of the coding gain in stereo coding techniques.
摘要:
The invention relates to a magnetron coating system consisting of a first coating source, an auxiliary substrate, a magnetron, in addition to means which are used to determine the area density of the auxiliary substrate. The auxiliary substrate is arranged between the first coating source and the region which is used to receive the substrate which is to be coated, forming a cathode for the magnetron. The invention further relates to a method for depositing thin layers, wherein a layer is deposited on the auxiliary substrate by means of a first coating source and said auxiliary substrate is used as a cathode for coating a substrate by means of a magnetron and the area density of the auxiliary substrate is determined.