The question of how self-driving cars will interact and communicate with humans is one that has come up before, but the answer is still up in the air. Google has been looking into this at least since 2012, and earlier this year, Uber filed a patent for using flashing lights and sounds to talk to pedestrians. Now, the United States Patent Office has granted Lyft with a patent for what it describes as an autonomous vehicle notification system.
Lyft’s solution entails developing a predetermined message to display on the most visible car window. In one example, each window includes a projector, a see-through screen or another display device to communicate the message.