Disclosed are various embodiments of a vehicle projection system. Visual content is projected from a vehicle interior into a rear projection insert. The insert can include a semitransparent component to facilitate rear projection. The insert can also be perforated for enhanced visibility from the vehicle interior through the insert. A controller can change or modify the projected visual content based on operating conditions of the vehicle.

Disclosed are various embodiments of a vehicle projection system. Visual content is projected from a vehicle interior into a rear projection insert. The insert can include a semitransparent component to facilitate rear projection. The insert can also be perforated for enhanced visibility from the vehicle interior through the insert. A controller can change or modify the projected visual content based on operating conditions of the vehicle.

The warning device (12) includes a warning light mechanism (16), that is configured so as to emit a flashing strobe light (20) that flashes at a frequency that is higher than 10 Hz.

A communication device for a vehicle is described, having a recording apparatus for recording the surroundings of the vehicle and a signaling apparatus. Also included is a controller for controlling the signaling apparatus as a function of the recorded surroundings. The signaling apparatus sends a recording signal formed corresponding to the recorded surroundings, to the surroundings. Also described is a corresponding communication method, a corresponding computer program, a corresponding vehicle, and a corresponding communication system.

A vehicle proximity device includes: an obtainer that obtains a first audio signal obtained by extracting a first frequency band of a first sound source signal and a second audio signal obtained by extracting a second frequency band thereof; a simulated signal processor that generates a simulated signal based on a second sound source signal; a third filter that generates a third audio signal by extracting the first frequency band of the simulated signal; a fourth filter that generates a fourth audio signal by extracting the second frequency band of the simulated signal; a sound pressure adjuster that generates an output audio signal by adjusting the simulated signal to reduce a first difference between the first audio signal and the third audio signal and a second difference between the second audio signal and the fourth audio signal; and an outputter that outputs the output audio signal to the loudspeaker.