Abstract: A system for generating silent zones at a listening position comprises a first loudspeaker disposed at a first position and configured to radiate sound that corresponds to a sound signal. A first microphone picks up noise radiated by a noise source to the listening position and generates a first microphone signal. A second loudspeaker disposed at a second position that radiates sound. A second microphone that generates a second microphone signal. A third microphone disposed at a third position that generates a third microphone signal. An active noise cancellation (ANC) controller that receives the third microphone signal and at least one of the first and second microphone signals and that provides a loudspeaker input signal. A distance between the third position and the first position equals a distance between the third position and the second position such that the first, second and third microphones form corners of an isosceles triangle.

Abstract: An exterior helicopter light is configured to be mounted to a helicopter, in particular to an underside of the helicopter, the helicopter having a longitudinal axis (A). The exterior helicopter light comprises: a first set of light sources configured for emitting, in operation, light of a first color into a at least one rear sector of a ground below the helicopter, the at least one rear sector spatially extending around a projection of a rear portion of the helicopter onto the ground; and second set of light sources configured for emitting, in operation, light of a second color, which differs from the first color, into at least two forward sectors of the ground below the helicopter.

Abstract: In one embodiment a system comprises a master unit configured to receive a base station downlink radio frequency signal and transmit a base station uplink radio frequency signal; and a plurality of remote antenna units each communicatively coupled to the master unit using at least one cable, the remote antenna units each configured to radiate a remote downlink radio frequency signal from at least one antenna and to receive a remote uplink radio frequency signal from the at least one antenna. The master unit comprises a channel selective uplink muting circuit. The master unit receives and monitors uplink transport signals from the remote uplink radio frequency signal to identify one or more channels within the uplink transport signals that are not carrying uplink communications traffic; wherein the channel selective uplink muting circuit selectively mutes channels of the uplink transport signals that are not carrying uplink communications traffic.

Abstract: In an embodiment, a signal repeater includes a master unit and a remote unit that are optically coupled to one another by, e.g., an optical fiber. The master unit includes master-unit circuitry configured to receive an input electrical signal from a satellite-signal receive antenna, and to convert the input electrical signal into an optical signal. And the remote unit includes remote-unit circuitry configured to convert the optical signal into an intermediate electrical signal, to amplify the intermediate electrical signal to generate an output electrical signal, and to couple the output electrical signal to a retransmission antenna. Because an optical channel, such as an optical fiber, typically attenuates an optical signal significantly less per unit of distance than a coaxial cable attenuates an electrical signal, such a signal repeater allows a satellite receive antenna to be located at a significant distance from a retransmit antenna.

Abstract: A decorative part, in particular for a vehicle interior, having a decorative layer with a visible front surface, a support on a reverse side of the decorative layer and a light-conducting layer provided between the support and the decorative layer for backlighting at least part of the decorative layer, which is assigned a light-conducting element for generating light. For more uniform backlighting of the decorative layer, a light-conducting dome is provided on a reverse side of the light-conducting layer facing away from the decorative layer, which protrudes therefrom and is coupled in a light-conducting manner to the light-conducting layer and at its free end to the light element.

Abstract: A holder for a beverage container, for example a beverage can, which is provided for holding the beverage container in a tilt-proof manner in a motor vehicle. Supports are designed so as to laterally support the beverage container by way of a supporting element, which is pivotably mounted at a support carrier and urged by a preloaded support spring into the holder. An electric motor pivots the support carriers inwardly, so that the supporting elements are laterally pushed by the support springs from the outside against the beverage container placed into the holder, in order to hold the beverage container in a tilt-proof manner.

Abstract: A sound system configured to output sound signals to a user located in a defined environment, comprising a plurality of transducers configured to output the sound signals, a processing unit configured to individually control at least an electrical delay, a frequency characteristic and a sound level with which the sound signals transmitted to the plurality of transducers are output by each of the plurality of transducers, and a seat for a user to which the sound signals are output, the seat comprising a seating surface and a backrest configured support a back of the user sitting on the seating surface. The backrest comprises an upper surface defining an upper end surface of the backrest. The defined environment influences the sound signals as perceived by the user sitting on the seat.

Abstract: Known system containers or transport systems have the disadvantage that a precise prior adjustment is necessary for the purpose of connecting the same. The disclosed system container or transport system is configured in such a way that a particularly stable and intuitive mutual fastening is made possible. Runways of the system container project in the direction of each other, and at least one upwardly protruding locking lug is provided on the lid part.

Abstract: An electromagnetic actuator having at least one electromagnetic actuator unit, the actuator unit comprising a coil and a plunger, which plunger is axially movable relative to the coil via energization of the coil, and the actuator unit being arranged in a housing. In order to achieve a particularly simple design, the plunger is arranged approximately coaxially with the coil according to the invention.

Abstract: A replaceable light head for an exterior aircraft light includes a mounting structure for attaching the replaceable light head to the exterior aircraft light; a power terminal, coupleable to an internal power supply of the exterior aircraft light; at least one light source, coupled to the power terminal for receiving power from the internal power supply of the exterior aircraft light; a data interface, coupleable to a controller of the exterior aircraft light; and a memory, coupled to the data interface and configured to receive and store usage data of the internal power supply of the exterior aircraft light.

Abstract: A method comprises: measuring reflected and forward power at a power amplifier output; determining if the reflected power equals to or exceeds a first level; if the reflected power is equal to or exceeds the first level, then reduce power of a power amplifier input signal; determining if a standing wave ratio at the power amplifier output equals or exceeds a second level; if the standing wave ratio at the power amplifier output equals or exceeds the second level, then reducing the power amplifier input signal power level and/or sending an alarm; determining if the power amplifier output power equals or exceeds a third level; and if the power output from the power amplifier equals or exceeds the third level, then reducing the power amplifier input signal power level until such power level is less than or equal to the third level and/or sending an alarm.

Abstract: The invention relates to a device and a method, by which the intraocular pressure in a patient's eye is changed by artificially applying a variable stimulation pressure causing, upon reaching specific intraocular pressure values, the presence of characteristic measurement criteria in the retina of the eye, which allow global and local retinal blood pressure values to be derived from the intraocular pressure value. Based on the retinal blood pressure values, which are determined online or preferably offline, local retinal perfusion pressure values (rPP) can be computed and represented in an image of the retina as a pressure mapping image.

Abstract: The invention relates to a gas generator (10), particularly a pyrotechnical tube gas generator, with an axial longitudinal direction (L), comprising an ignition unit (20), a combustion chamber (30) axially mounted downstream from the ignition unit (20) and comprising a combustion chamber bottom (35) forming a combustion chamber outlet (36), and a filter chamber (70) that is axially mounted downstream of the combustion chamber (30). According to the invention, at least one guiding sleeve (50) and a front-side baffle plate (80) are formed in the filter chamber, a first end (51) of the guiding sleeve (50), on the side of the combustion chamber, being axially mounted downstream from the combustion chamber bottom (35), and a second end (53) of the guiding sleeve (50) being associated with the baffle plate (80), a first deflection section being formed on the baffle plate (80) and the guiding sleeve (50) which allows a gas flow to an outer side of the guiding sleeve (50) into an annular first discharge chamber (75).

Abstract: A method for managing a memory for an onboard computer in a motor vehicle is provided. The method includes: determining, at regular time intervals, a degree of wear of the memory depending on an amount of data written into the memory; and if the degree of wear exceeds a specified target value: changing a coding of one or more cells of the memory from a physical coding of higher density to a physical coding of lower density.

Abstract: A device for dispensing detergent into a dishwasher, comprising a cover element for closing off or opening up at least one opening (2) of a reservoir (1) for storing the detergent, wherein the reservoir (1) has at least one base wall (8) arranged opposite the opening (2) and at least one side wall (7) oriented transversely to the base wall (8), is proposed, which device improves on the prior art. This is achieved according to the invention by virtue of the fact that at least one water conducting element (5, 9) is arranged for the conductance and/or guidance of water.

Abstract: The invention involves a busbar distributor for electrical energy, and uses at least one consumer terminal (CT) for at least one consumer for supplying the consumer with electrical energy, as well as at least one connecting element for connecting a building energy supply (BES) to at least one high-voltage busbar, which connecting element connects the consumer to the BES. The distributor further has at least one line element which is provided between the connecting element and the CT, and a connector which is arranged between the CT and the connecting element. The connecting element has at least two conductors for supplying power to the CT. Also, the connector is connected, on an energy supply side, to the line element, which is formed having two conductors for energy supply which can be connected to the BES. The line element is exchangeable depending on the actual voltage and/or the power system of the building energy supply.

Abstract: Systems and methods for unified facility communications systems with device location are provided. One system embodiment comprises: a master unit and a plurality of remote antenna units defining a DAS. The master unit communicates with a base station to receive a base station downlink RF signal and to transmit a base station uplink RF signal. The remote antenna units radiate a remote downlink RF signal into a coverage area and receive a remote uplink RF signal from the coverage area. The master unit comprises uplink and downlink circuitry to transport user device communications, and a facility supervisory module to process facility device traffic associated with wireless facility assets in the coverage area. Facility device traffic is transported via the remote antenna units. Within the master unit, user device communications is routed via the uplink and downlink circuitry and facility device traffic is routed via the facility supervisory module.

Abstract: An improved method for optical distance measurement is provided, in which only subsets of the transmitting elements of the transmission matrix are activated when using a transmission matrix to transmit measuring pulses and a reception matrix for receiving the latter.

Abstract: An aircraft beacon light for an aircraft wing with a foldable wing tip includes a housing, a lens cover, and at least one light source arranged between the housing and the lens cover, wherein the aircraft beacon light is configured to emit flashes of red light in operation, and wherein the housing and the lens cover are shaped to embed the aircraft beacon light into a hinge assembly coupling the foldable wing tip to a main wing portion of the aircraft wing.