SECURE RFID BASED ULTRA-WIDEBAND TIME-HOPPED PULSE-POSITION MODULATION
First Claim
Patent Images
1. A radio-frequency-identification (RFID) system comprising:
- an RFID tag; and
an RFID reader, where the RFID reader is configured to communicate with the RFID tag using time-hopped pulse-position modulation and ultra-wideband modulation.
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Abstract
A radio-frequency-identification (RFID) system includes an RFID tag and an RFID reader, where the RFID reader is configured to communicate with the RFID tag using time-hopped pulse-position modulation and ultra-wideband modulation. The time-hopped pulse-position modulation includes sending from the RFID tag to the RFID reader a series of pulses in time slots selected by the RFID tag through a cryptographically secure pseudo-random generator.
37 Citations
23 Claims
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1. A radio-frequency-identification (RFID) system comprising:
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an RFID tag; and
an RFID reader, where the RFID reader is configured to communicate with the RFID tag using time-hopped pulse-position modulation and ultra-wideband modulation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A radio-frequency-identification (RFID) system comprising:
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an RFID tag; and
an RFID reader, where the RFID reader is configured to communicates with the RFID tag using narrowband communication initially and subsequently through broadband communication. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of communicating within a radio-frequency-identification (RFID) system, comprising the steps of:
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sending a narrowband signal from an RFID reader to an RFID tag;
receiving data signals from the RFID tag to the RFID reader through broadband communication using time-hopped pulse-position modulation and ultra-wideband modulation. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification