Carnegie Mellon University researchers have developed a simple, low-cost paper that can trace contact with pen and what could be the future in the automatic digitization of writing.
It is the familiar to all of us simple writing paper, size A4 glue, with the difference that there is some conductive material on its back. The researchers wanted to strike a balance between the best conductive material that adheres flawlesslyeyeστα στο χαρτί, και του όσο το δυνατόν χαμηλότερου κόστους, που θα μπορούσε να εφαρμοστεί σε ένα σενάριο μαζικής παραγωγής. Πολλά υλικά απορρίφθηκαν εξαιτίας του υψηλού τους κόστους, της μη επεκτασιμότητας και της κακής αλληλεπίδρασης με το χαρτί. Τελικά οι ερευνητές κατέληξαν σε δύο. Σε ένα plastic carbon coated sheet which would be adhered to the back of the paper sheet or a carbon based paint which could be sprayed or run as a film on an A4 adhesive.
The conductive materials of the sheet of paper were then connected to a sensor panel, making it possible to digitize any object moving on that sheet. Whether it is a finger, a pen, or a stylus. As you can see in the video below, the researchers used a sheet of paper to digitize notes, digitally capture a board game, score a real-time test, and share articles in an online print journal.
The design resulted in a cost of about $ 0,30 per sheet, but the researchers say that the price can probably be greatly reduced through large-scale production. They will officially present their work this week at the conference ACM CHI Conference on Human Factors in Computing Systems.
