Interrogator and interrogation system employing the same
First Claim
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1. A control and processing system, comprising:
- a correlation subsystem configured to correlate a reference code with a reply code from a radio frequency identification (RFID) tag and provide a correlation signal therefrom; and
a decision subsystem configured to verify a presence of said RFID tag as a function of said correlation signal.
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Abstract
A control and processing system for use with an interrogator and an interrogation system employing the same. In one embodiment, the control and processing system includes a correlation subsystem having a correlator that correlates a reference code with a reply code from a radio frequency identification (RFID) tag and provides a correlation signal therefrom. The control and processing system also includes a decision subsystem that verifies a presence of the RFID tag as a function of the correlation signal.
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Citations
60 Claims
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1. A control and processing system, comprising:
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a correlation subsystem configured to correlate a reference code with a reply code from a radio frequency identification (RFID) tag and provide a correlation signal therefrom; and
a decision subsystem configured to verify a presence of said RFID tag as a function of said correlation signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method verifying a presence of a radio frequency identification (RFID) tag, comprising:
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correlating a reference code with a reply code from an RFID tag and providing a correlation signal therefrom; and
verifying a presence of said RFID tag as a function of said correlation signal. - View Dependent Claims (17, 18, 19, 20)
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21. An interrogator, comprising:
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a radio frequency identification (RFID) sensing subsystem configured to provide a reply code associated with an RFID tag; and
a control and processing subsystem, including;
a correlation subsystem configured to correlate a reference code with said reply code and provide a correlation signal therefrom, and a decision subsystem configured to verify a presence of said RFID tag as a function of said correlation signal. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method of operating an interrogator, comprising:
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providing a reference code associated with an RFID tag of an RFID object;
entering said reference code into memory;
subsequently sensing a reply code from said RFID tag;
correlating said reference code with said reply code and providing a correlation signal therefrom; and
verifying a presence of said RFID tag as a function of said correlation signal. - View Dependent Claims (37, 38, 39, 40)
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41. An interrogation system, comprising:
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a computer system;
a transceiver that transmits and receives signals for said computer system; and
an interrogator, including;
a radio frequency identification (RFID) sensing subsystem that provides a reply code associated with an RFID tag of an RFID object, a control and processing subsystem, including;
a correlation subsystem that correlates a reference code with said reply code and provides a correlation signal therefrom, and a decision subsystem that verifies a presence of said RFID tag as a function of said correlation signal, and a communications subsystem that communicates with said transceiver. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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Specification