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US 7,377,447 B2Granted
Tuned radio frequency identification (RFID) circuit used as a security device for wristbands and package security
AssigneeRCD Technology, Inc.
InventorRobert R. Oberle
Life of this patent
Estimating the term…
Abstract
A tamper evident RFID circuit uses a fold section that forms a capacitive element when folded together.
Claims15
An RFID circuit comprising:
- an antenna portion on substrate,
- a fold section;
- wherein the fold section contains an adhesive layer and wherein when the fold section is folded together with the adhesive layer at least one capacitor is created which set the RF
- response characteristics of the RFID circuit;
- wherein the fold section has a center hole and the substrate has a strap that fits through the center hole, the strap having an RFID antenna portion that extends through the center hole when the strap is placed through the center hole and the fold section is folded down.
2 more elements
An RFID wristband comprising;
- a substrate;
- an antenna portion of the substrate;
- a strap on the substrate;
- and
- a fold section on the substrate;
- wherein the fold section contains an adhesive layer and wherein when the fold section is folded together with the adhesive layer at least one capacitor is created which sets the RF response of the RFID circuit, wherein the fold section has a hole that the strap portion fits into such that adhesive layer of the fold section can hold the strap in place;
- wherein the strap has an RFID antenna portion that extends that through the center hole when the strap is placed through the center hole and the fold section is folded down.
4 more elements
Dependencies are inferred from the claim text.