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AssigneeZIH Corp.
InventorsBoris Y. Tsirline, Clive P. Hohberger, Robert Gawelczyk, Daniel Donato
Estimating the term…
A system having a UHF RFID transceiver is adapted to communicate exclusively with a single electro-magnetically coupled transponder located in a predetermined confined transponder operating region. The system includes a near field coupling device comprising a plurality of lines connected in parallel with an unmatched load. The near field coupling device may be formed, for example on a printed circuit board with a plurality of electrically interconnected traces and a ground plane. The system establishes, at predetermined transceiver power levels, a mutual electro-magnetic coupling which is selective exclusively for a single transponder located in a defined transponder operating region. Also included are methods for selective communication with the transponder in an apparatus such as a printer-encoder.
A method for communicating with a transponder in a transponder operating region having boundaries, comprising:
A method of communicating with a transponder, the method comprising:
An encoder configured to communicate with a transponder in an operating region of the encoder, the encoder comprising:
Dependencies are inferred from the claim text.