Technical Features of Contactless IC Card
The contactless IC card , also known as the induction card, was born in the early 1990s. Because of its incomparable advantages that magnetic cards and contact IC cards do not have, it immediately attracted wide attention as soon as it came out, and was promoted and applied at an alarming rate. The contactless IC card is composed of an IC chip and an induction antenna, and is completely sealed in a standard PVC card with no exposed parts. The read-write process of the non-contact IC card is usually completed by radio waves between the non-contact IC card and the reader. The contactless IC card itself is a passive body. When the reader reads and writes the card, the signal emitted by the reader is composed of two parts superimposed. One part is the power signal. After the signal is received by the card, it resonates with its own L/C, generating an instant energy to supply the chip with work. The other part is to combine the data signal and direct the chip to complete the data, modifi...