Paper becomes a high-tech product

Using radio frequency identification (RFID) technology on bank card chips, scientists turned the piece of paper into a high-tech control device.

According to Quartz, developers describe this as a low-cost, ultra-thin, battery-less technology that pairs RFID tags with a piece of paper to become a receiver.

They use sensor and signal processing techniques to determine how a card is being manipulated by the user through an RFID reader. Thereby, get traces of electricity on paper easily.

The "smart paper" has a chip that assists students in taking tests and delivers answers quickly to the teacher. Photo: Quartz.

As a result, information is processed, categorized as: touching, overlapping, and overlapping of materials and it will perform predetermined functions within seconds. Because of their popularity as well as low cost, tags can be used to create new layers and interact with easy tasks when required.

With a simple antenna design, users can draw them by hand or by machine. Then, attach the RFID to the antenna just drawing (print). The device will connect to the computer and output the signal change to the monitor. The computer receives information, distinguishing it when the user performs the interaction such as masking, touching, sliding, rotating, scrolling, or moving the cards.

In life, this technology has many interesting applications. For example, the automatic music switch on a card, the baton of a conductor, or the use of wind chimes as a motion control switch. In addition, this product can be used in school, it quickly answers the paper test questions to the teacher's computer.

According to Quartz, the technology was announced on October 25, 2002 in Sweden by scientists at Acreo AB and Linköping University called "Electronic paper and paper electronics." So far, it has been applied in practice.