| 摘要 |
A circuit for a passive or semi-passive RFID device 202, comprises an antenna 228 for receiving a signal, a first process device 214 for controlling an output of the RFID device, and a second processing device 228 separate from the first processing device; the antenna has first pair 222, 224 and second pair 222, 232 of terminals, wherein at least one of the terminals of the second pair of terminals is between the terminals of the first pair of terminals and wherein when the signal is received by the antenna, the first pair of terminals receives the full voltage generated across the antenna and the second pair of terminals receives a lower voltage than a voltage generated across the first pair of terminals; In a first mode of operation, the second processing device is connected to the first pair of terminals, and in a second mode of operation, the first processing device is connected to the second pair of terminals. The first processing device may be an RFID chip which communicates with an RFID scanner. The second processing device may be a biometric processing device such as a finger print scanner. |
