Abstract: A method for contactless and non-destructive determination of the layer thicknesses of lacquer layers of vehicle parts is disclosed. In addition, the invention relates to a device to determine and measure the lacquer layers of vehicle part, the device constructed for performing optical coherence tomography and includes at least one radiation source for providing electromagnetic radiation and the electromagnetic radiation provides a wavelength (?) of 100 nm-15·103 nm and in particular 380 nm to 800 nm.

Abstract: A device (100) comprising an antenna array (102) having a plurality of transmit and receive antennas (104) for wireless radio communication and a display (106) for displaying a stereoscopic image (108), wherein the stereoscopic image (108) is visible to an observer (110A, 110B) at a position (112A, 112B), wherein the antenna array (102) and the display (104) are arranged so that from the position (112A, 112B) the observer's view of at least a part of the antenna array (102) is obstructed by the display (106). A method for operating the device.

Abstract: A method for contactless and non-destructive determination of the layer thicknesses of lacquer layers of vehicle parts is disclosed. In addition, the invention relates to a device to determine and measure the lacquer layers of vehicle part, the device constructed for performing optical coherence tomography and includes at least one radiation source for providing electromagnetic radiation and the electromagnetic radiation provides a wavelength (?) of 100 nm-15·103 nm and in particular 380 nm to 800 nm.

Abstract: A device (100) comprising an antenna array (102) having a plurality of transmit and receive antennas (104) for wireless radio communication and a display (106) for displaying a stereoscopic image (108), wherein the stereoscopic image (108) is visible to an observer (110A, 110B) at a position (112A, 112B), wherein the antenna array (102) and the display (104) are arranged so that from the position (112A, 112B) the observer's view of at least a part of the antenna array (102) is obstructed by the display (106). A method for operating the device.

Abstract: The invention relates to an operating device (10) for at least one light-emitting diode (9) having an input (11) for coupling to a DC bus (6) in order to receive a DC supply voltage. The operating device (10) has a configurable emergency light function. The operating device (10) is designed to produce, in the emergency light case, the LED currently for the at least one light-emitting diode (9) in dependence on how the emergency light function is configured.

Abstract: A leaky repeater access node (LRAN) includes a first directional antenna and a second directional antenna to transmit and receive signals in at least one first frequency band, and a third antenna to transmit and receive signals in a second frequency band. The LRAN also includes first analog components to split a first signal received by the first directional antenna into a first portion and a second portion. The first analog components amplify the first portion and provide the amplified first portion to the second directional antenna. The first analog components also convert the second portion to the second frequency band and provide the converted second portion to the third antenna.

Abstract: In a method for transmitting data through a Massive MIMO backhaul system, a central node of the MIMO backhaul system transmits, to a small cell repeater terminal on the downlink, a downlink pilot signal carrying a set of pilot sequences that are mutually orthogonal in the frequency domain. Each pilot sequence in the set of pilot sequences corresponds to an antenna of an antenna array at the central node. The central node receives an uplink pilot signal carrying the set of pilot sequences transmitted by the small cell repeater terminal on the uplink, where the received uplink pilot signal is a frequency converted retransmission of the downlink pilot signal. The central node estimates at least one of an uplink channel and a downlink channel between the central node and the small cell repeater terminal based on the set of pilot sequences and the received uplink pilot signal.

Abstract: The invention relates to an operating device (10) for at least one light-emitting diode (9) having an input (11) for coupling to a DC bus (6) in order to receive a DC supply voltage. The operating device (10) has a configurable emergency light function. The operating device (10) is designed to produce, in the emergency light case, the LED currently for the at least one light-emitting diode (9) in dependence on how the emergency light function is configured.

Abstract: A leaky repeater access node (LRAN) includes a first directional antenna and a second directional antenna to transmit and receive signals in at least one first frequency band, and a third antenna to transmit and receive signals in a second frequency band. The LRAN also includes first analog components to split a first signal received by the first directional antenna into a first portion and a second portion. The first analog components amplify the first portion and provide the amplified first portion to the second directional antenna. The first analog components also convert the second portion to the second frequency band and provide the converted second portion to the third antenna.

Abstract: In a method for transmitting data through a Massive MIMO backhaul system, a central node of the MIMO backhaul system transmits, to a small cell repeater terminal on the downlink, a downlink pilot signal carrying a set of pilot sequences that are mutually orthogonal in the frequency domain. Each pilot sequence in the set of pilot sequences corresponds to an antenna of an antenna array at the central node. The central node receives an uplink pilot signal carrying the set of pilot sequences transmitted by the small cell repeater terminal on the uplink, where the received uplink pilot signal is a frequency converted retransmission of the downlink pilot signal. The central node estimates at least one of an uplink channel and a downlink channel between the central node and the small cell repeater terminal based on the set of pilot sequences and the received uplink pilot signal.

Abstract: The invention relates to an operating unit in which dimming information can be fed to a secondary side in respect of a galvanic isolator (4), wherein the operating unit (1) is improved in terms of cost. In particular, the dimming information is fed only to a first module (2) (a master module) either from outside by means of a sensor or from a primary side via the galvanic isolator (4) by means of a wireless channel (52). The first module (2) is further designed to relay the dimming information to at least one second module (3) (at least one slave module). The relaying of the dimming information can be effected either by a local bus (6), a wireless connection (9), a supply line, or via lines on a lamp module (12).

Abstract: An operating device (1) is provided for at least one luminous element (2), including a measuring device configured to measure a temperature (T) present in the operating device (1) or in the surroundings of the operating device, and at least one interface connected to the measuring means and configured to output a piece of information regarding the measured temperature (T).

Abstract: An operating device (1) is provided for at least one luminous element (2), including a measuring device configured to measure a temperature (T) present in the operating device (1) or in the surroundings of the operating device, and at least one interface connected to the measuring means and configured to output a piece of information regarding the measured temperature (T).