Abstract: A device for air-to-ground communication between an aircraft and a ground station, said aircraft and said ground station each having antennas for directional radio data transmission. The data transmission is performed in a frequency band from 60 GHz to 90 GHz and the antenna of the ground station transmits and receives data exclusively in a range of angles ? of at least 5 degrees in the upward direction relative to the horizontal plane.

Abstract: A device for air-to-ground communication between an aircraft and a ground station, said aircraft and said ground station each having antennas for directional radio data transmission. The data transmission is performed in a frequency band from 60 GHz to 90 GHz and the antenna of the ground station transmits and receives data exclusively in a range of angles ? of at least 5 degrees in the upward direction relative to the horizontal plane.

Abstract: The present invention relates to a seat for a vehicle, particularly an aircraft, having a visual playback device integrated in a surface of the seat. A base firmly connected to the seat is arranged in the surface of the seat. Said visual playback device is releasably attached to the base by means of a holder adapted to the visual playback device and the base.

Abstract: To increase the safety of a passenger in a means of transport and to better protect the passenger from an in-seat screen, wherein a folding table and at least one in-seat screen arranged above the folding table are provided in front of the passenger, and the folding table has a first folded position when the folding table is not in use and a second folded position for using the table which is pivoted with respect to the first folded position through approximately 90°, the method is characterized in that at least a portion of the folding table can be moved in front of the in-seat screen in order to protect the passenger from the screen. A corresponding arrangement is also provided.

Abstract: Method for performing announcements in a means of transport that has an announcement device having at least one loudspeaker and an entertainment device, having the following steps: an announcement start signal is sent from the announcement device to the entertainment device at the beginning of an announcement; an interruption to the reproduction of the reproduction appliance is prompted by the entertainment device when the announcement start signal is received; the announcement is reproduced as an audible announcement signal via the announcement loudspeaker; continuation of the reproduction of the reproduction appliance is prompted by the entertainment device when an announcement end signal is received or at the end of reception of the announcement start signal, characterized by detection of an audio signal that is output by the announcement loudspeaker by the entertainment device, wherein the reproduction of the reproduction appliance is automatically interrupted after the audio signal is detected.

Abstract: To increase the safety of a passenger in a means of transport and to better protect the passenger from an in-seat screen, wherein a folding table and at least one in-seat screen arranged above the folding table are provided in front of the passenger, and the folding table has a first folded position when the folding table is not in use and a second folded position for using the table which is pivoted with respect to the first folded position through approximately 90°, the method is characterized in that at least a portion of the folding table can be moved in front of the in-seat screen in order to protect the passenger from the screen. A corresponding arrangement is also provided.

Abstract: A simplified mobile data communication device (10) for a transport means has a data server (14) and a broadband data communication interface (16) connected to the data server (14), the data communication device (10) having an entirely sealable, portable housing (12) which entirely surrounds the data server (14) and the data communication interface (16).

Abstract: Method for performing announcements in a means of transport that has an announcement device having at least one loudspeaker and an entertainment device, having the following steps: an announcement start signal is sent from the announcement device to the entertainment device at the beginning of an announcement; an interruption to the reproduction of the reproduction appliance is prompted by the entertainment device when the announcement start signal is received; the announcement is reproduced as an audible announcement signal via the announcement loudspeaker; continuation of the reproduction of the reproduction appliance is prompted by the entertainment device when an announcement end signal is received or at the end of reception of the announcement start signal, characterized by detection of an audio signal that is output by the announcement loudspeaker by the entertainment device, wherein the reproduction of the reproduction appliance is automatically interrupted after the audio signal is detected.

Abstract: An entertainment network for passengers in a means of transportation, such as an airplane, having at least one data server for video and/or audio data. A routing device is connected to the data server. The entertainment network has at least one playback device which is provided for a passenger for the duration of a trip in order to play back the audio/video data. The routing device is designed for the wireless broadband transmission of the video/audio data to numerous playback devices simultaneously and in at least two different frequency bands independently of one another. The playback device is designed to only receive the data of a first frequency band, and a second frequency band is designed to be received only by individual passenger terminals, such as notebooks, tablets, or smartphones. The invention likewise relates to methods for transmitting audio/video data to entertain passengers in a means of transportation.

Abstract: N-Methyl-2-pyrrolidone (NMP) is prepared by preparing a mixture comprising monomethylamine, dimethylamine and trimethylamine and ammonia in a first process step by reacting ammonia with methanol at elevated temperature in the presence of a catalyst, separating 10 off the ammonia, reacting the mixture comprising the methylamines with gamma-butyrolactone (&ggr;-BL), in a molar ratio of monomethylamine to &ggr;-BL of at least 1 in a second process step at elevated temperature and superatmospheric pressure, separating NMP and unreacted methylamines from the reaction product and returning unreacted methylamines to the first process step for reaction with methanol and ammonia.

Abstract: N-Methyl-2-pyrrolidone (NMP) is prepared by preparing a mixture comprising monomethylamine, dimethylamine and trimethylamine and ammonia in a first process step by reacting ammonia with methanol at elevated temperature in the presence of a catalyst, separating off the ammonia, reacting the mixture comprising the methylamines with gamma-butyrolactone (&ggr;-BL), in a molar ratio of monomethylamine to &ggr;-BL of at least 1 in a second process step at elevated temperature and superatmospheric pressure, separating NMP and unreacted methylamines from the reaction product and returning unreacted methylamines to the first process step for reaction with methanol and ammonia.