Patent ID: 9177243
Filing Date: 2015-11-03
Classification: G06K

Abstract:
1. A passive RFID transponder circuit, comprising: a transducer antenna adapted to receive incoming RF signals and convert the incoming RF signals into electrical current, the transducer antenna further being adapted to receive a data-carrying electrical signal and convert the data-carrying electrical signal into an outgoing data-carrying RF signal; an RFID signal module coupled to the transducer antenna in an electrical circuit therewith; and a power conditioning unit interposed in the electrical circuit between the transducer antenna and the RFID signal module and configured to receive electrical current from the transducer antenna and deliver conditioned electrical current to the RFID signal module; the RFID signal module being arranged to receive the conditioned electrical current from the power conditioning unit and being adapted to respond to receiving the conditioned electrical current by transmitting the data-carrying electrical signal to the transducer antenna; and at least one powered element coupled to the transducer antenna in parallel with the RFID signal module and the power conditioning unit; wherein: the RFID transponder circuit is configured so that the at least one powered element receives electrical current from the transducer antenna to power the powered element; and flow of the electrical current from the transducer antenna to the at least one powered element to power the at least one powered element bypasses the RFID signal module and the power conditioning unit.