Abstract: The invention relates to a hot-air fan including a fan device for generating an air flow, a heating device for heating the air flow, and a control unit connected to the fan device and to the heating device. In this process, the control unit is designed to control the fan device in such a manner that, when the heating device is switched on, the fan device generates a starting air flow that is reduced to an operating air flow. The invention also relates to a method for operating the hot-air fan, including the steps of switching on the heating device and generating a starting air flow that is reduced to an operating air flow.

Abstract: The invention relates to a securing method, comprising the following Steps: providing an optical waveguide made of a material with a first melting temperature, wherein a sensor region of the optical waveguide has at least one integrated temperature sensor element; providing a capillary made of a material with a second melting temperature, in such a way that the capillary surrounds at least regions of the sensor region of the optical waveguide, and that a securing region of the capillary is arranged at a distance from the sensor region, wherein the second melting temperature is lower than the first melting temperature, wherein the temperature sensor element is arranged in an end region of the optical waveguide, and the end region is inserted into the capillary; securing the securing region of the capillary to the optical waveguide, involving a heating of the securing region of the capillary to a heating temperature that is equal to or higher than the second melting temperature; and heating the free end of the

Abstract: A running tool configured to insert and set a retrievable subsea unit (RSU) into a subsea tree includes a frame having a lock configured to lock and unlock the running tool with respect to the subsea tree, a drive configured to lower or lift the RSU with respect to an accommodation space of the subsea tree, and a module lock configured to releasably lock the RSU to the drive.

Abstract: An insertion and setting structure is used for inserting/setting a retrievable subsea unit (2) such as a subsea control module, subsea accumulator module, communication distribution unit or the like, into a subsea tree or also in a stand alone unit. The insertion and setting structure comprises a frame with at least a locking means for locking and unlocking the structure with respect to the subsea tree or a stand alone unit. Moreover, a lowering and lifting means is used for lowering and lifting the retrievable subsea unit with respect to an accommodation space and/or a module locking/unlocking means is also used for releasably locking the retrievable subsea unit to the lowering and lifting means. With such an insertion and setting structure it is easily possible to transport a corresponding retrievable subsea unit to install it, to remove it from the accommodation space, and to transport it back to a vessel or the like on sea level for a replacement or maintenance.

Abstract: The present invention relates to a method and an electronic circuit for processing at least two at least partially correlated output signal streams of a mixer, the mixer having at least two signal inputs and at least two electric signal outputs. In order to provide a method and a device or an electronic circuit which enables the correlated signal portions of the output signals of a mixer to be separated from the uncorrelated signal portions undelayed, it is proposed according to the invention that the difference of the output signal streams of the mixer is formed pairwise directly and during the readout of the signal streams and that the circuit has an apparatus for the instantaneous formation of the difference between the signal streams of two mixer outputs in each case.

Abstract: The present invention relates to a photonic mixer device with a photosensitive layer, at least two modulation gates (3, 4, 103, 104, 203, 204, 303, 304, 403, 404) and at least two readout electrodes (1, 2, 101, 102, 201, 202, 301, 302, 401, 402, 501, 502, 601, 602) connected to the photosensitive layer, the modulation gates (3, 4, 103, 104, 203, 204, 303, 304, 403, 404) being able to be connected to a modulation device which raises and lowers the potential of the modulation gates relative to one another and relative to the preferably constant potential of the readout electrodes corresponding to a desired modulation function.

Abstract: The present invention relates to a photonic mixer device with a photosensitive layer, at least two modulation gates (3, 4, 103, 104, 203, 204, 303, 304, 403, 404) and at least two readout electrodes (1, 2, 101, 102, 201, 202, 301, 302, 401, 402, 501, 502, 601, 602) connected to the photosensitive layer, the modulation gates (3, 4, 103, 104, 203, 204, 303, 304, 403, 404) being able to be connected to a modulation device which raises and lowers the potential of the modulation gates relative to one another and relative to the preferably constant potential of the readout electrodes corresponding to a desired modulation function.

Abstract: The present invention relates to an electromagnetic mixing system for receiving and processing modulated electromagnetic signals, with a signal detector made from a semiconductor material for receiving and converting electromagnetic radiation into an electric measured value and with at least one modulation input modulating the reception of the signal detector, and also with at least two accumulation electrodes which are connected to output electronics at the output of which a mixture of the received signal and at least one modulation signal applied at the modulation input is effectively provided as electric signal. The present invention also relates to a method for operating such an electromagnetic mixing system, the electromagnetic signals striking the signal detector producing charge carriers which, depending on the at least one modulation signal, are conducted at least partially alternately to the at least two different readout electrodes.

Abstract: The present invention relates to a method and an electronic circuit for processing at least two at least partially correlated output signal streams of a mixer, the mixer having at least two signal inputs and at least two electric signal outputs. In order to provide a method and a device or an electronic circuit which enables the correlated signal portions of the output signals of a mixer to be separated from the uncorrelated signal portions undelayed, it is proposed according to the invention that the difference of the output signal streams of the mixer is formed pairwise directly and during the readout of the signal streams and that the circuit has an apparatus for the instantaneous formation of the difference between the signal streams of two mixer outputs in each case.