Anti-counterfeiting method of RFID chip

• Main Authors: FAN XIAOPENG, ZHOU YUJIE, TAN YONGWEI
• Format: Patent
• Language: Chinese; English
• Published: 08.09.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The invention discloses an anti-counterfeiting method of an RFID chip. Under the condition of no continuous external power supply, the detection pin is detected only through the working moment of theRFID tag; a non-polar chip packaging design mode is adopted; a plurality of external detection pins are used; the plurality of detection pins independently detect an external connection state. The signals of the detection pins are different; various external connecting circuits are designed; different circuit impedances or inductive reactance can be realized; the mutual connection state of the detection pins is detected and stored in the chip initialization process, the external connection state of the detection pins is automatically detected in the later starting process and compared with anexternal detection pin state register stored in the chip, and therefore whether the chip is recycled or not is judged. 本发明公开了一种RFID芯片的防伪方法，在无持续外部电源的条件下仅通过RFID标签工作瞬间对检测引脚进行检测，采用无极性的芯片封装设计方式，使用多个外部检测引脚，多个检测引脚独立检测外部连接状态，每个检测引脚的信号