RFID SYSTEM WITH DISTRIBUTED TRANSMITTERS
First Claim
Patent Images
1. A Radio Frequency Identification (RFID) system, comprising:
- a reader having a receive antenna in communication therewith; and
a plurality of transmitters in communication with the reader and spatially separated from the reader.
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Accused Products
Abstract
A Radio Frequency Identification (RFID) system according to one embodiment includes a reader having a receive antenna in communication therewith, and a plurality of transmitters in communication with the reader and spatially separated from the reader. Methods of use are also presented.
127 Citations
31 Claims
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1. A Radio Frequency Identification (RFID) system, comprising:
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a reader having a receive antenna in communication therewith; and a plurality of transmitters in communication with the reader and spatially separated from the reader. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A Radio Frequency Identification (RFID) system, comprising:
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a reader having a receive antenna coupled thereto and in close proximity therewith; and a plurality of transmitters in communication with the reader and spatially separated from the reader, each of the transmitters being separately controllable, the transmitters being unable to receive a backscattered RF signal. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for locating a Radio Frequency Identification (RFID) tag utilizing a system having a reader with a receive antenna coupled thereto and a plurality of transmitters in communication with the reader and spatially separated from the reader, the method comprising:
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instructing at least one of the transmitters to transmit a signal; listening for a backscattered signal from a particular transponder; estimating a location of the particular transponder if a backscattered signal from the particular transponder is received; and instructing at least another of the transmitters to transmit a signal if no backscattered signal from the particular transponder is received. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification