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AssigneePervasid Limited
InventorsSabesan Sithamparanathan, Ian White, Michael Crisp, Richard Vincent Penty, Martin Neuhaus
Estimating the term…
An RFID system comprises an array of antennas each configured to emit a plurality of beams in different directions. The beams of each pair of adjacent antennas are directed towards one another and overlap. A pair of adjacent antennas transmits simultaneously and the overlapping beams interfere to create an interference pattern. An RFID reader controls the relative phase and/or frequency of the beams to move the interference pattern to read an RFID tag within the moving pattern. As the chance of a RFID tag responding to an emitted beam generally increases with signal strength of the reader beam an area of constructive interference means that RFID tags in that region are more likely to respond to the signal. The system can cover a large proportion of the area below ceiling-mounted antennas, where cover generally means that RFID tags in that area will be successfully read.
An RFID system for reading at least one RFID tag, the system comprising:
The system of 1, wherein the antennas are configured to be ceiling mounted, and wherein each antenna is configured to emit the plurality of beams in different lateral directions and are directed away from a plane defined by the array of antennas.
A method of reading at least one RFID tag, the method comprising:
An RFID or radio system for reading one or more RFID tags or radio sensors, the system comprising:
A method of reading at least one RFID tag, the method comprising:
An RFID system for reading at least one RFID tag, the system comprising:
Dependencies are inferred from the claim text.