Abstract: A Computer-implemented method is provided for encrypting data by a server in cooperation with a predetermined number of rate limiters. The method includes receiving, by the server, a user identification, and a password to be encrypted and creating a secret message, the secret message being a key suitable for use with a symmetric key encryption/decryption scheme. The method further includes generating, on the basis of a predetermined interactive cryptographic encryption protocol, a ciphertext which encrypts the user password, and the secret message using secret keys of the rate limiters of the subset, where the threshold is smaller than or equal to the number of rate limiters, and the protocol is adapted such that the server needs only to interact with a subset of the predetermined size of the number of rate limiters for decryption of the ciphertext to recover the secret message.

Abstract: A Computer-implemented method is provided for encrypting data by a server in cooperation with a predetermined number of rate limiters. The method includes receiving, by the server, a user identification, and a password to be encrypted and creating a secret message, the secret message being a key suitable for use with a symmetric key encryption/decryption scheme. The method further includes generating, on the basis of a predetermined interactive cryptographic encryption protocol, a ciphertext which encrypts the user password, and the secret message using secret keys of the rate limiters of the subset, where the threshold is smaller than or equal to the number of rate limiters, and the protocol is adapted such that the server needs only to interact with a subset of the predetermined size of the number of rate limiters for decryption of the ciphertext to recover the secret message.

Abstract: A camera (10) for the detection of objects (30) in a detection region (16) is provided which has a light receiver (22) having a plurality of light reception pixels, a multispectral illumination unit (12) for illuminating the detection region (16) in different spectral bands and an evaluation unit (24) that is configured to illuminate the detection region (16) by means of the illumination unit (12) during different illumination windows of time (30a-c) in a respectively different spectral band and to record image data from the detection region (16) by means of the light receiver (22) in recording windows of time (40a-c, 42a-c). In this respect, the light receiver (22) is configured as a two-line receiver having a first line (22a) of light reception pixels and a second line (22b) of light reception pixels and the recording window of time (40a-c, 42a-c) for the first line (22a) is different from that for the second line (22b).

Abstract: A camera (10) for the detection of objects (30) in a detection region (16) is provided which has a light receiver (22) having a plurality of light reception pixels, a multispectral illumination unit (12) for illuminating the detection region (16) in different spectral bands and an evaluation unit (24) that is configured to illuminate the detection region (16) by means of the illumination unit (12) during different illumination windows of time (30a-c) in a respectively different spectral band and to record image data from the detection region (16) by means of the light receiver (22) in recording windows of time (40a-c, 42a-c). In this respect, the light receiver (22) is configured as a two-line receiver having a first line (22a) of light reception pixels and a second line (22b) of light reception pixels and the recording window of time (40a-c, 42a-c) for the first line (22a) is different from that for the second line (22b).

Abstract: A spark plug of an internal combustion engine, in particular for use in Otto-cycle gas engines, comprising an insulator body, a base central electrode, at least one ground electrode and at least one swirl chamber, wherein the electrodes of the spark plug are surrounded by a wall, which in particular is in the form of a surface of a cylinder, of the swirl chamber, wherein at least one ground electrode carrier arrangement (8) with a plurality of inwardly facing, preferably flat ground electrodes (9) or a plurality of ground electrode carriers (6) each with inwardly facing, preferably flat ground electrodes (9) is or are arranged at the wall (13) of the swirl chamber (3).

Abstract: A spark plug, in particular for use in internal combustion engines, includes a spark plug casing and a ground electrode carrier casing. The ground electrode carrier casing has at least two ground electrode carrier casing portions having mutually different materials and/or the ground electrode carrier casing is of a different material from the spark plug casing.

Abstract: The invention relates to an apparatus for the determination of the focal distance of an optical imaging system comprising a first partly reflecting element and a second partly reflecting element which are arranged in the beam path at an angle to the optical axis such that a first portion of the light is reflected at the first element into a first light field, a second portion of the light is reflected at the second element into a second light field and a third portion of the light passes through both elements to form a third light field, and an optical detection device to register at least a part of an interference pattern in the overlap region of the first and second light fields. The invention furthermore relates to an optical imaging system comprising an apparatus in accordance with the invention for the determination of the focal distance and a laser scanner having an optical imaging system in accordance with the invention.

Abstract: A spark plug is disclosed. The spark plug has a ceramic insulator body and a center electrode that is housed at least partially in a bore in the insulator body. The center electrode is sealed off from the insulator body by at least one sealing ring surrounding the center electrode that contains material that is plastically deformable by compression.

Abstract: A spark plug of an internal combustion engine, in particular for use in Otto-cycle gas engines, having an insulator body, at least one fixed ground electrode carrier arrangement and at least one fixed central electrode carrier, wherein a spark plug housing having at least two parts encloses the insulator body, wherein the spark plug housing has a lower housing portion and an upper housing portion, wherein at least the combustion chamber-side part of the insulator body is pressure-resistantly, preferably completely, enclosed by the lower housing portion jointly with the upper housing portion.

Abstract: Spark plug with an, in particular ceramic, insulator body and a center electrode, wherein said center electrode is housed at least partially in a bore in said insulator body, said center electrode being sealed off from said insulator body—preferably exclusively—by at least one sealing ring surrounding said center electrode, said sealing ring containing material that is plastically deformable by compression.

Abstract: A spark plug, in particular for use in internal combustion engines, comprising a spark plug casing (2) and a ground electrode carrier casing (3) wherein the ground electrode carrier casing (3) has at least two ground electrode carrier casing portions (3?, 3?) having mutually different materials and/or the ground electrode carrier casing (3) is of a different material from the spark plug casing (2).

Abstract: A spark plug of an internal combustion engine, in particular for use in Otto-cycle gas engines, comprising an insulator body (1), at least one fixed ground electrode carrier arrangement and at least one fixed central electrode carrier, wherein a spark plug housing having at least two parts (3, 4) encloses the insulator body, wherein the spark plug housing has a lower housing portion (4) and an upper housing portion (3), wherein at least the combustion chamber-side part of the insulator body (1) is pressure-resistantly, preferably completely, enclosed by the lower housing portion (4) jointly with the upper housing portion (3).

Abstract: A spark plug of an internal combustion engine, in particular for use in Otto-cycle gas engines, comprising an insulator body, a base central electrode, at least one ground electrode and at least one swirl chamber, wherein the electrodes of the spark plug are surrounded by a wall, which in particular is in the form of a surface of a cylinder, of the swirl chamber, wherein at least one ground electrode carrier arrangement (8) with a plurality of inwardly facing, preferably flat ground electrodes (9) or a plurality of ground electrode carriers (6) each with inwardly facing, preferably flat ground electrodes (9) is or are arranged at the wall (13) of the swirl chamber (3).

Abstract: Device for connecting bone fragments by a bone plate (1), which is to be connected to the bone fragments using screws (5). A screw (5) or group of screws is connected to a coupling part (6) at a fixed angle, which coupling part surrounds the bone plate (1) transversely, on the one hand forming with the underside (3) of the plate a swivel bearing and on the other hand having a cover plate (10), which contains at least three fixing screws (16) arranged laterally offset with respect to the swivel bearing. By adjusting these fixing screws, the coupling part with the associated screws can be angularly adjusted with respect to the bone plate.