Abstract: The present invention relates to composition at least including (A) at least one epoxy-group terminated polyoxazolidinone, derived from at least one polyisocyanate compound and at least one aliphatic polyepoxide compound, (B) at least one compound having at least one group that is reactive towards terminal epoxy-groups, and (C) at least one solvent. The molar ratio of the epoxy groups of the polyepoxide compound to the isocyanate groups of the polyisocyanate compound is 50:1 to 2.4:1. The at least one epoxy-group terminated polyoxazolidinone is present in an amount of 50 to 95% by weight, in respect of the solid content of the composition. The sum of all components in respect of the solid content of the composition adds up to 100% by weight and where the solid content of the composition is at least 35% by weight.

Abstract: First, an auxiliary cut-out (11, 16) is formed in a side wall (1) of a continuous casting mold. That cut-out extends, in the longitudinal direction, at least over the cut-out length (L) of the useful cut-out (10) and has an auxiliary cross-section orthogonal to the longitudinal direction. Then, an additional element (13, 14, 17) is inserted into the auxiliary cut-out (11, 16), and extends, in the longitudinal direction, at least over a cut-out length (L) of a later useful cut-out (10) and bounds the useful cut-out (10) orthogonally to the longitudinal direction at least over part of the periphery of the useful cut-out. The useful cut-out (10) is formed by inserting the additional element (13, 14, 17) into the auxiliary cut-out (11, 16). The useful cut-out (10) is closed all around orthogonally to the longitudinal direction. Orthogonally to the longitudinal direction, the useful cut-out has a (correspondingly small) useful cross-section and a maximum useful extent (d3).

Abstract: Systems and methods for compressive image sensor techniques based on sparse measurement matrices are disclosed. A method to perform compressive sensing (CS) measurement operations for image sensors limits pixel summation to be within neighboring pixels and hence dramatically simplifies CS image sensor circuits and reduces their power consumption while providing better image quality compared to conventional random measurement matrix based methods. A sparse measurement matrix is applied to pixel data to generate a desired number of summation groups, each summation group consisting of outputs from an equal number of pixel cells. Each pair of summation groups contains the same number of shared outputs from pixel cells. From the summation groups, an image captured by the pixel cells is recovered.

Abstract: Systems and methods for compressive image sensor techniques based on sparse measurement matrices are disclosed. A method to perform compressive sensing (CS) measurement operations for image sensors limits pixel summation to be within neighboring pixels and hence dramatically simplifies CS image sensor circuits and reduces their power consumption while providing better image quality compared to conventional random measurement matrix based methods. A sparse measurement matrix is applied to pixel data to generate a desired number of summation groups, each summation group consisting of outputs from an equal number of pixel cells. Each pair of summation groups contains the same number of shared outputs from pixel cells. From the summation groups, an image captured by the pixel cells is recovered.

Abstract: A microphone comprises a movable diaphragm 2 and a back electrode 4. The mechanical relationship between the back electrode 4 and the diaphragm 2 is adjustable thereby to control the cut-off frequency of the microphone. This enables the microphone to be adapted to different noise environments.

Abstract: An electro-acoustic transducer (1) is disclosed, comprising a substrate (2) that comprises conducting paths (3), a cover (4) attached to said substrate (2) thus forming an inner chamber (A) and a space (B) outside said chamber (A), wherein said cover (4) comprises one or more ports (5). A MEMS sensor (6) of said transducer (1) has at least one hole (7) extending from a first side (C) to a second side (D). A membrane (8) is arranged in said hole (7) transverse to the hole axis (E) thus forming a first hole space (a) and a second hole space (b). The sensor (6) furthermore has electrical connectors (9) designed to carry electrical signals representing sound acting on said membrane (8), which connectors (9) are connected to said conducting paths (3). According to the invention, said MEMS sensor (6) is arranged inside said chamber (A) in such a way that said second hole space (b) is connected to said outside space (B) via said port or ports (5) and said first hole space (a) is connected to said inner chamber (A).

Abstract: A microphone comprises a movable diaphragm 2 and a back electrode 4. The mechanical relationship between the back electrode 4 and the diaphragm 2 is adjustable thereby to control the cut-off frequency of the microphone. This enables the microphone to be adapted to different noise environments.

Abstract: An electro-acoustic transducer (1) is disclosed, comprising a substrate (2) that comprises conducting paths (3), a cover (4) attached to said substrate (2) thus forming an inner chamber (A) and a space (B) outside said chamber (A), wherein said cover (4) comprises one or more ports (5). A MEMS sensor (6) of said transducer (1) has at least one hole (7) extending from a first side (C) to a second side (D). A membrane (8) is arranged in said hole (7) transverse to the hole axis (E) thus forming a first hole space (a) and a second hole space (b). The sensor (6) furthermore has electrical connectors (9) designed to carry electrical signals representing sound acting on said membrane (8), which connectors (9) are connected to said conducting paths (3). According to the invention, said MEMS sensor (6) is arranged inside said chamber (A) in such a way that said second hole space (b) is connected to said outside space (B) via said port or ports (5) and said first hole space (a) is connected to said inner chamber (A).