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A communication link is established between the smart card and a computer using a valid smart card communication protocol. A smart card communication device determines the valid smart card communication protocol used by a smart card by polling a communication channel using a plurality of smart card

A communication link is established between the smart card and a computer using a valid smart card communication protocol. A smart card communication device determines the valid smart card communication protocol used by a smart card by polling a communication channel using a plurality of smart card communication protocols until a valid acknowledgment message is received. A radio frequency circuit is configured to communicate with the smart card using the valid smart card communication protocol. A digital signal processor having at least two demodulators demodulates an incoming data stream produced by the receiver in accordance with the valid smart card communication protocol in a dynamically reconfigurable manner.

대표청구항 ▼

A communication link is established between the smart card and a computer using a valid smart card communication protocol. A smart card communication device determines the valid smart card communication protocol used by a smart card by polling a communication channel using a plurality of smart card

A communication link is established between the smart card and a computer using a valid smart card communication protocol. A smart card communication device determines the valid smart card communication protocol used by a smart card by polling a communication channel using a plurality of smart card communication protocols until a valid acknowledgment message is received. A radio frequency circuit is configured to communicate with the smart card using the valid smart card communication protocol. A digital signal processor having at least two demodulators demodulates an incoming data stream produced by the receiver in accordance with the valid smart card communication protocol in a dynamically reconfigurable manner. said first entrance cover includes a handle, said first beam means includes means for providing the first continuous beam at a location adjacent to said handle. 3. A system as set forth in claim 2, wherein said first beam means includes means for providing the first continuous beam at a location such that the continuous beam is interrupted by a hand of the authorized person as the authorized person reaches for the handle. 4. A system as set forth in claim 1, wherein said first beam means includes means for providing the first continuous beam transmitted from the first location and received at the second location as an infrared beam. 5. A system as set forth in claim 1, wherein said second beam means includes means for providing the second continuous beam of energy transmitted from a third location and received at a fourth location and causing operation of said communication means when the second continuous beam is interrupted. 6. A system as set forth in claim 5, wherein said communication means includes a first transceiver associated with the first beam means and a second transceiver associated with the second beam means. 7. A system as set forth in claim 6, wherein said first entrance cover is an entrance door for the person to enter the vehicle. 8. A system as set forth in claim 1, wherein said second entrance cover is a trunk lid. 9. A system as set forth in claim 1, wherein said communication means includes a plurality of transceivers that communicate via radio frequency signal. 10. A system as set forth in claim 1, wherein said interrogation communication means includes a plurality of transceivers, said transceivers communicate via exchange of electromagnetic energy, at least one of the transceivers transfers power to at least another of the transceivers via the electromagnetic energy exchange. 11. A system as set forth in claim 1, including means for intermittently powering said first beam means to provide a duty cycle. 12. A system as set forth in claim 1, wherein said first beam means includes a beam emitter for emitting an infrared beam and a beam receiver for detecting impingement of the infrared beam. 13. A system as set forth in claim 12, including means for fixing said beam emitter and said beam receiver to the vehicle such that the infrared beam is located to be interrupted when a hand of the person reaches to operate a handle. 14. A system as set forth in claim 12, wherein said means for fixing include means for positioning said beam emitter and said beam receiver to the vehicle such that the beam is located behind said handle relative to the person.