Abstract: A network device for an intercom network for duplex audio communication between users of the intercom network has a housing and a communication module in or at the housing and that can establish a radio link for transmitting audio signals to and receiving audio signals from another user. The radio link is subject to the DECT protocol or another protocol, and the audio signals to the communication module is broken by reflection into a plurality of radio paths. Multipath interference is prevented or reduced by electronic elements including at least one equalizer for processing a plurality of audio signals received along the plurality of radio paths and performing a signal correction.

Abstract: A first network device is connectable via electrical lines to a power supply and to other subscribers of a network for transmitting audio and/or image information. It has an input terminal connectable to the power supply, an output terminal connectable to a second network device, and signals and operating voltage are transmitted via the terminals using four layers. Equipment processes the signals received via the lines and the operating voltage in the first network device by receiving and/or retrieving or processing information relating to a maximally available PoE supply input on the input and receiving, or retrieving and or processing information relating to a power intake required at least by the second network device received and/or retrieved and/or further processed by the second network device. A tester is connected to the equipment for checking whether the supply input at the input is sufficient for the first and second network devices.

Abstract: The invention relates, inter alia, to a network device (10) which can be connected via electrical lines (15, 16) to other subscribers (18a, 18b, 12, 13) of a network (42), in particular a real-time intercom network (42), for transmitting audio and/or image information, wherein the network device (10) comprises at least one input-side terminal (22a) for connection to a power supply source (11) and at least one output-side terminal (22b) for connection to at least one second network device (12), wherein signals and operating voltage (PoE) can be transmitted via the terminals, using at least the following four layers (32, 33, 34, 35): a) PTP layer (precision time protocol), b) ethernet layer, c) data and/or information layer, d) PoE (power over ethernet) layer.

Abstract: An intercom network for real-time audio communication between users has a stationary element to which the users are connected, a mobile terminal that comprises an audio input and that can transmit audio signals wirelessly to the stationary element or to another user, and a device in the stationary element for user management, that administers the users connected to the stationary element, and that carries out an authorization check for logging the mobile terminal onto the stationary element. An NFC element is provided in the device on the stationary element, and an NFC counter-element is provided on the mobile terminal that can transmit authorization information to the NFC element when the mobile terminal approaches the stationary element.

Abstract: A first communication station of an intercom network is used in combination with a second communication station of the intercom network. The first and second communication stations are configured for carrying out real-time audio communication with other communication stations of the intercom network. The first communication station and the second communication station each comprise operating elements actuatable to provide direct audio communication with at least one of the other communication stations of the network, an audio input and a connection port or a communication module for connecting the communication station with another communication station of the intercom network The first and second communication stations each have a functionality including at least one of display brightness, speaker volume, programming of the operating elements, and microphone sensitivity that can be set as respective parameters.

Abstract: The invention concerns amongst other things a user (11a, 11b, 11c, 11d, 11e, 11f, 11g) to an intercom network (10) for carrying out real-time audio communication with other users of this intercom network, comprising an audio input, in particular a microphone (14, 14a, 14b, 14c, 14d, 14e, 14f) or a microphone port (28) and a connection port (29) or a communication module (30) for connecting with a switching center (19a, 19b) of the intercom network, comprising at least one functionality that can be set as a parameter, in particular manually set, such as key assignment, direct-dial key, brightness, volume or the like, characterized in that an NFC element (22, 22a, 22b, 22c, 22d, 22e, 22f) is provided on the user that can be used to carry out a communication with a counterpart NFC element (23) assigned to an operator (25).

Abstract: An intercom network for real-time audio communication between users has a stationary element to which the users are connected, a mobile terminal that comprises an audio input and that can transmit audio signals wirelessly to the stationary element or to another user, and a device in the stationary element for user management, that administers the users connected to the stationary element, and that carries out an authorization check for logging the mobile terminal onto the stationary element. An NFC element is provided in the device on the stationary element, and an NFC counter-element is provided on the mobile terminal that can transmit authorization information to the NFC element when the mobile terminal approaches the stationary element.

Abstract: The invention relates to, among others, a communication station (10) for an intercom network (11), comprising a plurality of operating elements (15a, 15b, 15c, 15d) each of which are configured in the manner of a lever (49a, 49b, 49c, 49d, 49e, 49f, 49g, 49h, 49i, 49j), wherein a lever starting from an inactive middle position (39a) is manually shiftable in a first direction (31) into a first switching position (39b) or alternatively shiftable in a second direction (32) contrary to the first into a second switching position (39c), wherein the lever is biased toward its middle position. The special feature of the invention consists, among others, in that the lever comprises a rotatably mounted adjustment element (59, 59a, 59b, 59c, 59d, 59e, 59f, 59g, 59h, 59i, 59j) for changing a parameter.

Abstract: A network device for an intercom network for duplex audio communication between users of the intercom network has a housing and a communication module in or at the housing and that can establish a radio link for transmitting audio signals to and receiving audio signals from another user. The radio link is subject to the DECT protocol or another protocol, and the audio signals to the communication module is broken by reflection into a plurality of radio paths. Multipath interference is prevented or reduced by electronic elements including at least one equalizer for processing a plurality of audio signals received along the plurality of radio paths and performing a signal correction.

Abstract: The invention relates to, among others, a network device (10, 11, 12) for an intercom network (13) for permitting an audio communication, in particular a duplex audio communication with other users (14a, 14b, 14c, 14d, 14e, 14f) of the intercom network, comprising a housing (33) and a communication module (20a, 20b) arranged therein or thereon, with which a radio link can be established for the transmission of audio signals to another user, wherein the radio link is subject to the DECT protocol. The speciality, among others, consists in that the network device (10, 11, 12) comprises a means (21) for preventing or reducing multipath interferences.

Abstract: The invention relates to, among others, an intercom network (10), comprising a plurality of speech stations (11a, 11b, 11c) and at least one switching center (13, 16), wherein from each speech station connected to the switching center a connecting line (12a, 12b, 12c) extend to the switching center, wherein the connecting line provides a direct connection, respectively, between the switching center and the connected speech station, and wherein the speech stations of the intercom network, due to an audio data communication via the switching center, can enter into audio communication in real time. The particular feature consists, among others, in that at least one speech station (11a) comprises a terminal (53, 54) for a second connecting line (50, 50a, 50b, 50c), via which the speech station is connected with the same switching center (13) or with another switching center (16).

Abstract: An intercom network for real-time audio communication between users has a stationary element to which the users are connected, a mobile terminal that comprises an audio input and that can transmit audio signals wirelessly to the stationary element or to another user, and a device in the stationary element for user management, that administers the users connected to the stationary element, and that carries out an authorization check for logging the mobile terminal onto the stationary element. An NFC element is provided in the device on the stationary element, and an NFC counter-element is provided on the mobile terminal that can transmit authorization information to the NFC element when the mobile terminal approaches the stationary element.

Abstract: A network communication station has a housing with a housing front and a housing rear side, a plurality of operating elements on the housing front, and a touchscreen display movable on the housing front between a first position and a second position physically offset therefrom for, in a first function state of the display, displaying information of a first kind and/or allowing data of a first kind to be entered on the display and for, in a second function state of the display, displaying information of a second kind and/or allowing data of a second kind to be entered on the display. A controller sets the display in the first function state when in the first position and in the second function state when in the second position.

Abstract: Presented and described is, amongst other items, an intercom plug-in connector (10) for audio connections, comprising a cylindrical housing (19) extending in the axial direction (27), in particular with a circular, or essentially circular, cross-section, whose first axial end (20) is formed by a plug-in extension (22) that on its front face (39) has a plurality of sockets (23a, 23b, 23c, 23d), in particular four sockets positioned relative to one another in an approximately V-shape, for contact pins (24a, 24b), and which at its second axial end (21) has a phone jack (25) for a phone plug (14).

Abstract: The invention relates, among others, to a communication station (10) for an intercom network (11), comprising a housing (12) with a housing front (13) and a housing rear side (14), wherein a plurality of operating elements (15a, 15b, 15c) and at least one display (16a, 16b, 16c, 16d) are on the housing front, the display being configured as a touchscreen display, wherein the operating elements comprise a plurality of selector keys (17a, 17b, 17c, 17d), wherein the communication station as a result of an operator actuating a selector key provides a direct listening and/or speaking connection to another selected communication station (18a, 18b) of the intercom network, in particular via a switching station (19), wherein in a first function state (68) of the display information (A; B, C) of a first kind can be displayed and/or data (A; B; C) of a first kind can be entered on the display, the information and/or data relating to at least one operating element.

Abstract: The invention relates to an exhaust heat recovery system having a working fluid circuit (1) carrying a working fluid, having a heat exchanger (2) which is connected in an exhaust line (3) of an internal combustion engine (5) and which is a part of the working fluid circuit (1) together with at least one expansion machine (11), a condenser (12), and a fluid pump (15). The aim of the invention is to provide an exhaust heat recovery system, which is improved with respect to known systems. This is achieved in that the exhaust heat recovery system has a device (27) for avoiding damage to the expansion machine (11) that is caused by liquid components of the working fluid. The device (11) is, for example, a container (21), a calming container (28, 28a), a line section (36) or a filter (26), or the device (11) has at least one such component.

Abstract: Inter alia, the invention relates to an aerial device (10), comprising at least one rotor (12, 12a, 12b) that generates lift forces that, using a controller (18), can be addressed by a drive (16, 16a, 16b), wherein the drive (16, 16a, 16b) comprises an electromotively-driven rotor drive shaft (29). The particular feature of the invention is, among other things, that the drive (16, 16a, 16b) comprises a plurality of electric motors (25, 26, 27) that jointly drive the rotor drive shaft (29).

Abstract: An intercom network for real-time audio communication between users has a stationary element to which the users are connected, a mobile terminal that comprises an audio input and that can transmit audio signals wirelessly to the stationary element or to another user, and a device in the stationary element for user management, that administers the users connected to the stationary element, and that carries out an authorization check for logging the mobile terminal onto the stationary element. An NFC element is provided in the device on the stationary element, and an NFC counter-element is provided on the mobile terminal that can transmit authorization information to the NFC element when the mobile terminal approaches the stationary element.

Abstract: The present invention relates to a method for operating a fuel supply system for an internal combustion engine, and to a corresponding device. The fuel supply system of an internal combustion engine may include: an outlet of a high-pressure pump coupled to a pressure-limiting valve and a high-pressure fluid accumulator. The method may include, when the internal combustion engine is set into a deactivated state, actuating the high-pressure pump such that, at the outlet side of the high-pressure pump, a pressure is increased such that the pressure-limiting valve is opened.

Abstract: The invention relates, among others, to a communication station (10) for an intercom network (11), comprising a housing (12) with a housing front (13) and a housing rear side (14), wherein a plurality of operating elements (15a, 15b, 15c) and at least one display (16a, 16b, 16c, 16d) are on the housing front, the display being configured as a touchscreen display, wherein the operating elements comprise a plurality of selector keys (17a, 17b, 17c, 17d), wherein the communication station as a result of an operator actuating a selector key provides a direct listening and/or speaking connection to another selected communication station (18a, 18b) of the intercom network, in particular via a switching station (19), wherein in a first function state (68) of the display information (A; B, C) of a first kind can be displayed and/or data (A; B; C) of a first kind can be entered on the display, the information and/or data relating to at least one operating element.