Abstract: In some aspects, a device may calibrate a brightness setting of the device for a user based on: displaying, by the device, first calibration content and modifying a luminance of a display while displaying the first calibration screen until a pupil size of the user satisfies a first target pupil size; and displaying, by the device, second calibration content and modifying the luminance of the display while displaying the second calibration screen until the pupil size of the user satisfies a second target pupil size. The device may calculate a metric value based upon pixel values of content to be displayed. The device may display, using a luminance that is adjusted based on the metric and in accordance with the brightness setting, the content. Numerous other aspects are described.

Abstract: In some aspects, a device may calibrate a brightness setting of the device for a user based on: displaying, by the device, first calibration content and modifying a luminance of a display while displaying the first calibration screen until a pupil size of the user satisfies a first target pupil size; and displaying, by the device, second calibration content and modifying the luminance of the display while displaying the second calibration screen until the pupil size of the user satisfies a second target pupil size. The device may calculate a metric value based upon pixel values of content to be displayed. The device may display, using a luminance that is adjusted based on the metric and in accordance with the brightness setting, the content. Numerous other aspects are described.

Abstract: An operating unit (2) sets ventilation parameters of a control unit (11) of a ventilator (1) that includes a gas dispensing device (10) for ventilation gases. The operating unit includes a display unit and an ventilation parameters input element (23, 24). Two or more of the parameters are linked via a relation condition stored in a relation storage module (40). A relation monitor (3) includes a deviation detector (31) detecting a transgression of the relation condition during parameter setting, and outputs warning information via a warning unit (32). This avoids a need for an operator to note the sometimes complicated connections and dependencies expressed in the relations during the parameter setting. The warning may be sent before the new setting value is sent from the operating unit to the control unit. Operating safety is increased and a risk of setting errors is minimized.

Abstract: Various embodiments include methods for establishing secure device-to-device communications. Embodiments may include receiving a connection type selection by a user for connecting the first wireless device to the second wireless device, and connecting to the second wireless device using a one-time password (OTP) exchange and selected features access permissions. Embodiments may further include storing a device identification (ID) of the second wireless device for a duration of the wireless connection, and deleting the stored device ID upon disconnection of the first wireless device from the second wireless device to prevent future automatic connections.

Abstract: An operating unit (2) sets ventilation parameters of a control unit (11) of a ventilator (1) that includes a gas dispensing device (10) for ventilation gases. The operating unit includes a display unit and an ventilation parameters input element (23, 24). Two or more of the parameters are linked via a relation condition stored in a relation storage module (40). A relation monitor (3) includes a deviation detector (31) detecting a transgression of the relation condition during parameter setting, and outputs warning information via a warning unit (32). This avoids a need for an operator to note the sometimes complicated connections and dependencies expressed in the relations during the parameter setting. The warning may be sent before the new setting value is sent from the operating unit to the control unit. Operating safety is increased and a risk of setting errors is minimized.