Importance

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Abstract

The present invention is of an active RFID system configured for SIMPLEX two way communication based on conductive coupling, wherein two way communication is non-simultaneous and can operate on a single frequency comprising at least one capacitive coupling reader, wherein the reader is configured to transmit modulated or unmodulated RF electric signals and to receive and decode data transmitted by the transponder; at least one active capacitive coupling RFID transponder comprising at least one integrated circuit, which is arranged to store a code comprising information and which is configured for capacitive coupled RFID transponder application; at least one antenna configured to receive signal from the at least one reader, and transmit the transponder code comprising information; and at least one power source for providing energy to operate the at least one integrated circuit and transponder transmission; and at least one data processing device for processing the data received from the reader. The fully active transponder includes a carrier frequency control circuit wherein the carrier frequency generator is configured to facilitate correction of frequency error in comparison to the reader transmitter carrier frequency.

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First Claim