Smart RFID Tag
Original Publication Date: 1999-Nov-01
Included in the Prior Art Database: 2003-Jun-19
Dsiclosed is an RFID(Radio Frequency Identification) tag device which has the digital interface to connect to the system. There are two smart points of this RFID tag compared with the conventional RFID tag. First, it can support the communication between RFID tag and the system. Second, it can prevent the un-authorized access by passing through the gate to take the system out of the office. This smart RFID tag has a digital signal interface which the conventional RFID tag does not have. Fig.1 shows the diagram of the present digital interface. There are 2 advantage compared with the conventional RFID tag. 1) The communication between RFID tag and the system is achieved by VccTag/GND/Clock/Data signal lines. After the external RFID tag writer/reader update the EEPROM data in the RFID tag, the Notebook PC system can access the tag EEPROM and get the updated data of the EEPROM in the RFID tag through serial data interface.