Radio frequency identification (RFID) system for item level inventory
First Claim
Patent Images
1. A radio frequency identification (RFID) system comprising:
- an RFID interrogator;
at least one interrogator antenna;
at least one local antenna configured to communicate with RFID tags; and
a multiplexer connected to the at least one local antenna and configured to receive power from an RF signal generated by the RFID interrogator and transmitted wirelessly from the interrogator antenna.
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Accused Products
Abstract
A radio frequency identification (RFID) system for item level inventory may be provided. The RFID system may include an RFID interrogator, at least one interrogator antenna and at least one local antenna configured to communicate with RFID tags. The RFID system further may include a multiplexer connected to the at least one local antenna and configured to receive power from an RF signal generated by the RFID interrogator and transmitted wirelessly from the interrogator antenna.
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Citations
20 Claims
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1. A radio frequency identification (RFID) system comprising:
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an RFID interrogator; at least one interrogator antenna; at least one local antenna configured to communicate with RFID tags; and a multiplexer connected to the at least one local antenna and configured to receive power from an RF signal generated by the RFID interrogator and transmitted wirelessly from the interrogator antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A radio frequency identification (RFID) interface device comprising:
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a plurality of multiplexers; a plurality of local antennas connected to the plurality of multiplexers and configured to communicate with RFID tags; and a movable main antenna in connection with the plurality of local antennas and configured to receive RF power from an interrogator to power the plurality of multiplexers. - View Dependent Claims (13, 14, 15, 16)
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17. A radio frequency identification (RFID) system comprising:
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at least one multiplexer configured to appear to an RFID interrogator as a passive RFID tag and configured to receive power from an RF signal of the RFID interrogator; and a multiplexed antenna array configured to communicate with a plurality of RFID tags, each of the antennas in the multiplexed array configured to be selectively activated by the at least one multiplexer. - View Dependent Claims (18, 19, 20)
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Specification