Passive RFID tag that retains state after temporary loss of power

摘要: The present invention provides an RFID transponder that includes a state holding cell maintains the of during temporary losses power. After power is restored to transponder, restores so transactions with interrogator can continue without having re-transmit redundant commands. further comprises RF front end adapted receive interrogating signal. An analog circuit coupled and recover signals from received information defining desired corresponding signals. A digital machine execute at least one command in accordance information. memory store retrieve data responsive executed by machine. capacitor derives voltage rectified signal charge capacitor. thereby electrical for circuit, memory. maintain loss provided due lapse receipt end.