Method and apparatus for configuring the read-range of an RFID label or tag
AssigneeIntermec IP Corp.
InventorsMatthew Thomas Adams, Douglas Adrian Taylor
Life of this patent
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Abstract
A RFID device with a surface treatment which interferes with the transmission of RF signals/data between the RFID device and the RF interrogator or reader. A surface treatment of either RF reflective or RF absorptive ink is deposited on a RFID device using an attenuation pattern to fine tune the read range of the RFID device thereby eliminating or reducing the occurrence of accidental or cross reads between nearby RF interrogators or readers. The surface layer may be deposited at the time of printing the labels thereby fixing the attenuation at a known level or the surface treatment may be applied in an on-demand fashion allowing the attenuation level to be varied to an individual requirement.
Claims19
A method for configuring the read range of an RFID device, comprising the steps of:
- a. Obtaining a RFID device;
- and
- b. Adjusting the attenuation level of the RFID device by depositing an interfering layer in an attenuation pattern upon said RFID device.
A read-range attenuated RFID device, comprising:
- a. a RFID device;
- and
- b. an interfering layer deposited in an attenuation pattern upon said RFID device.
The RFID read range attenuated device of claim of 13, wherein said pattern is a plurality of spaced apart dots.
Dependencies are inferred from the claim text.