Abstract: A wireless device may include a controller configured to identify an emergency scenario and to generate an emergency message including information about the emergency scenario, and a transmitter configured to transmit, on a discovery channel allocated for other wireless devices to perform discovery, an emergency indicator beacon that indicates an upcoming transmission of the emergency message, and to transmit the emergency message on a data channel of the wireless device.

Abstract: Some embodiments relate to a computer readable medium including a program code, which is configured, when running on a programmable hardware component, to receive a delegated token from a user's device, including receiving a signal indicative of at least the delegated user identifier and a delegating security pattern from the delegated user and including providing the device of the user with a signal indicative of at least a delegated user identifier, and a delegation challenge value. It is further configured to receive, from the device of the user, a signal indicative of at least, in an encrypted form, a delegated token, a user-specific token, a delegation authentication key, a user-specific delegation challenge value, and a delegation check value. The program code is further configured to store in the device of the delegated user the delegation authentication key, the delegated token, and the user-specific token.

Abstract: A scanner arrangement (50), in particular a scanning microscope, for optically scanning an object (101) in a sequence of scanning steps, has: a drivable moving object stage (40) and an objective assembly (4, 7-10), which has a front objective lens (9, 103) on an objective lens carriage (8) which can be moved parallel to the object stage (40) by a carriage drive (5, 6, 10, 11), wherein the object stage (40) can be driven during the sequence of scanning steps in order to achieve a continuous movement and the objective lens carriage (8) with the front objective lens (9, 103) can be driven in each of the scanning steps for a forward movement step, in which the front objective lens (9, 103) is moved synchronously with the object stage (40) out of an initial position, and in each case between successive scanning steps for a backward movement into the initial position, with the object (101) being able to be optically scanned during the continuous movement of the object stage (40).

Abstract: A scanner arrangement (50), in particular a scanning microscope, for optically scanning an object (101) in a sequence of scanning steps, has: a drivable moving object stage (40) and an objective assembly (4, 7-10), which has a front objective lens (9, 103) on an objective lens carriage (8) which can be moved parallel to the object stage (40) by a carriage drive (5, 6, 10, 11), wherein the object stage (40) can be driven during the sequence of scanning steps in order to achieve a continuous movement and the objective lens carriage (8) with the front objective lens (9, 103) can be driven in each of the scanning steps for a forward movement step, in which the front objective lens (9, 103) is moved synchronously with the object stage (40) out of an initial position, and in each case between successive scanning steps for a backward movement into the initial position, with the object (101) being able to be optically scanned during the continuous movement of the object stage (40).