DATA COMPRESSION BY MEANS OF ADAPTIVE SUBSAMPLING

    公开(公告)号:US20190164314A1

    公开(公告)日:2019-05-30

    申请号:US16088022

    申请日:2017-03-23

    Abstract: The invention relates to the coding and decoding of data, in particular for visual representation. For this, a method (100) is provided for coding an initial data set (110), in which a respective initial data value (P1, P2, P3, P4) is established for a respective plurality of initial data points (112), for generating a compressed data set (114), comprising a primary coding of the initial data set (110) to generate an intermediate data set (116) and a secondary coding of the intermediate data set (116) to generate the compressed data set (114). In this way, the primary coding comprises the following steps: establishing a plurality of data point blocks (118), each having a plurality of initial data points (112) of the initial data set (110); determining a block data value (120) for each data point block (118) from the plurality of initial data values (P1, P2, P3, P4) within the respective data point block (118); checking each data point block (118) for compliance with a tolerance criterion; and generating the intermediate data set (116) in such a way that the intermediate data set (116) contains the block data value (120) as an individual data value for each data point block (118) in which the tolerance criterion is observed, and same contains the individual initial data values (P1, P2, P3, P4) at the initial data points (112) of the respective data point block (118) for each data point block (118) in which the tolerance criterion is not observed.

    Method and apparatus for impregnating semi-finished fibrous products

    公开(公告)号:US10106930B2

    公开(公告)日:2018-10-23

    申请号:US14780345

    申请日:2014-03-21

    Abstract: In a method for impregnating semi-finished fibrous products using resin as the impregnating means, winding or laying the semi-finished fibrous products in a plurality of layers on top of one another onto a receiving carrier is initially performed. Here, lower layers lie close to the receiving carrier, and upper layers lie more remote therefrom. The receiving carrier is configured so as to be permeable to the impregnating means. The impregnating means is then introduced through the receiving carrier into the semi-finished fibrous products, wherein the impregnating means initially permeates the lower layers and then permeates the upper layers of the semi-finished fibrous products.

    DEVICE AND METHOD FOR CONTACTLESS INDUCTIVE POWER TRANSMISSION

    公开(公告)号:US20250088035A1

    公开(公告)日:2025-03-13

    申请号:US18882905

    申请日:2024-09-12

    Abstract: A device for contactless inductive energy transmission having a first side and a second side is proposed, wherein the device comprises an energy transmission coil and a synchronisation coil, in each case, on the first side and on the second side. The energy transmission coils are in each case configured for inductive transmission and for receiving of energy, while the synchronisation coils are in each case configured for inductive transmission and for receiving a synchronisation signal, such that the first side and the second side are configured as a transmission side for contactless transmission of energy to be transmitted, and as a receiving side for contactless receiving of transmitted energy.

    Plasma thruster with birdcage antenna

    公开(公告)号:US12140126B2

    公开(公告)日:2024-11-12

    申请号:US18077291

    申请日:2022-12-08

    Abstract: A plasma thruster comprises a cylindrical discharge channel (1), an injector (4), a RF antenna surrounding the discharge channel (1) and a device (3) for generating an axial static magnetic field in the discharge channel (1). The RF antenna is a cylindrical birdcage antenna (2) formed of several electrically conductive parallel legs (10) connected by two end rings (11) including capacitors (12) between adjacent legs (10) in each case. The two end rings (11) with the capacitors (12) are formed on two printed circuit boards (14) to which the legs (10) are attached, said printed circuit boards (14) having a through opening for the discharge channel (1). The antenna maximizes electrical coupling efficiency and provides resulting electromagnetic fields for quasi-neutral plasma acceleration along with the magnetic field effect provided by the externally applied magnetic field. This plasma thruster allows an easy upscaling or downscaling due to the printed circuit boards and is particularly suitable for low power applications like propulsion for smaller spacecrafts or satellites.

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