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What is dot technology and how it works?

I have to go to a special pen and paper and pencil, look close and had plenty black dots on it and had a flight pen sensor that is detected. Also, I am an engineer and I know how these things are. Please no answers like: "I do not know what you talking about" or "what is fly pen" or something similar.

You find some good information on this site: https://www.anoto.com/digital-pen-paper.aspx basically dot pattern on paper is not uniform, is unique in the entire site, and even one piece of paper, on the other. The pen has a digital camera that sees what you write, as well as a dot pattern. Since the dot pattern is unique, that can always tell where the paper it is. May then such information used to interpret what you write.

Hydrogel Sensors and Actuators Engineering and Technology Spring Hardcover
Hydrogel Sensors and Actuators Engineering and Technology Spring Hardcover
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