System integration of RFID and MIMO technologies
First Claim
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1. A system, comprising:
- a plurality of radio frequency identification (RFID) tags, wherein each RFID tag backscatter transmits a signal; and
a reader comprising a plurality of antennas and a signal processor, wherein each antenna of the plurality of antennas receives a plurality of signals corresponding to the backscatter transmitted signals, and wherein the signal processor combines the plurality of signals received by each antenna of the plurality of antennas to produce an output signal.
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Abstract
An embodiment of the present invention provides a system including a plurality of radio frequency identification (RFID) tags and a reader. Each RFID tag of the plurality of RFID tags backscatter transmits a signal. In one embodiment, the reader includes a plurality of antennas and a signal processor. In another embodiment, the system includes a signal processor and a plurality of readers each including an antenna. In either embodiment, each antenna receives a plurality of signals corresponding to the backscatter transmitted signals. The signal processor combines the received plurality of signals to produce an output signal.
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Citations
24 Claims
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1. A system, comprising:
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a plurality of radio frequency identification (RFID) tags, wherein each RFID tag backscatter transmits a signal; and
a reader comprising a plurality of antennas and a signal processor, wherein each antenna of the plurality of antennas receives a plurality of signals corresponding to the backscatter transmitted signals, and wherein the signal processor combines the plurality of signals received by each antenna of the plurality of antennas to produce an output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system, comprising:
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a plurality of radio frequency identification (RFID) tags, wherein each RFID tag backscatter transmits a signal;
a plurality of readers each comprising an antenna, wherein each antenna receives a plurality of signals corresponding to the backscatter transmitted signals; and
a signal processor that combines the plurality of signals received by each antenna to produce an output signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method, comprising:
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backscatter transmitting a plurality of radio frequency identification (RFID) tag signals;
receiving with each antenna of a plurality of antennas a plurality of signals corresponding to the backscatter transmitted plurality of RFID signals; and
combining the plurality of signals received by each antenna to produce an output signal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification