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US 7,002,475 B2Granted
Combination radio frequency identification transponder (RFID tag) and magnetic electronic article surveillance (EAS) tag
AssigneeIntermec IP Corp.
InventorsMichael John Brady, Thomas Anthony Cofino, Dah-Weih Duan, Richard Joseph Gambino, Paul Andrew Moskowitz, Alejandro Gabriel Schrott, Robert Jacob Von Gutfeld
Life of this patent
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Abstract
A combination of a radio frequency identification transponder (RFID Tag) and to a magnetic electronic article surveillance (EAS) device is disclosed. The present invention relates generally to radio frequency identification (RFID) systems, and more specifically to RFID transponders for use in RFID systems and the method for their assembly.
Claims22
An apparatus comprising:
- (a) a radio frequency tag including an integrated circuit package containing at least tag electronic circuitry, a tag power supply integrated with said tag electronic circuitry, and a tag antenna operatively coupled to the integrated circuit package;
- (b) a magnetic material providing an article surveillance response in the presence of an interrogating field;
- and
- (c) the radio frequency tag communicating information by modulating reflectance characteristics of the tag antenna, wherein the integrated circuit package comprises a semiconductor device containing the tag electronic circuitry and the tag power supply, and the tag antenna comprises an antenna element electrically connected to the semiconductor device, and wherein a further antenna element cooperates with the first-mentioned antenna element to form the tag antenna, the further antenna element comprising said magnetic material coated with an electrically conducting material.
1 more element
An apparatus comprising:
- (a) a radio frequency tag including an integrated circuit package containing at least tag electronic circuitry, a tag power supply integrated with said tag electronic circuitry, and a tag antenna operatively coupled to the integrated circuit package;
- (b) a magnetic material providing an article surveillance response in the presence of an interrogating field;
- and
- (c) the radio frequency tag communicating information by modulating reflectance characteristics of the tag antenna, wherein the integrated circuit package comprises a semiconductor device containing the tag electronic circuitry and the tag power supply, and the tag antenna comprises an antenna element electrically connected to the semiconductor device, and wherein the tag antenna comprises a patch antenna electrically connected to the semiconductor device, the patch antenna having a ground plane, wherein the patch antenna comprises said magnetic material coated with an electrically conducting material.
1 more element
An apparatus comprising:
- (a) a radio frequency transponder including a transponder chip containing at least chip electronic circuitry and a chip power supply, and a transponder antenna connected to the transponder chip;
- (b) a magnetic material providing a response in the presence of an interrogating field;
- and
- (c) the radio frequency transponder communicating information by modulating reflectance characteristics of the transponder antenna, wherein the tag antenna comprises a patch antenna electrically connected to the transponder chip, the patch antenna having a ground plane, wherein the patch antenna comprises said magnetic material coated with an electrically conducting material.
1 more element
An apparatus comprising:
- (a) a radio frequency tag including an integrated circuit semiconductor device containing at least tag electronic circuitry and a tag power supply, and a tag antenna connected to the semiconductor device;
- (b) a magnetic material providing a response in the presence of an interrogating field;
- and
- (c) the radio frequency tag communicating information by modulating reflectance characteristics of the tag antenna, wherein the tag antenna comprises an antenna element electrically connected to the semiconductor device, wherein a further antenna element cooperates with the first-mentioned antenna element to form the tag antenna, the further antenna element comprising said magnetic material coated with an electrically conducting material.
1 more element
An apparatus comprising:
- (a) a radio frequency tag including an integrated circuit package containing at least tag electronic circuitry and a tag power supply, and a tag antenna connected to the integrated circuit package;
- (b) a magnetic material providing an article surveillance response in the presence of an interrogating field;
- and
- (c) the radio frequency tag communicating information by modulating reflectance characteristics of the tag antenna, wherein the tag antenna comprises said magnetic material coated with an electrically conducting material.
1 more element
An apparatus comprising:
- (a) a radio frequency transponder including an integrated circuit package containing at least transponder electronic circuitry and a transponder power supply, and a transponder antenna connected to the integrated circuit package;
- (b) a magnetic material providing a response in the presence of an interrogating field;
- and
- (c) the radio frequency transponder communicating information by modulating reflectance characteristics of the transponder antenna, wherein the transponder antenna comprises said magnetic material coated with an electrically conducting material.
1 more element
An apparatus comprising:
- (a) a radio frequency tag including an integrated circuit semiconductor device containing at least tag electronic circuitry and a tag power supply, and a tag antenna connected to the semiconductor device;
- (b) a magnetic material providing a response in the presence of an interrogating field;
- and
- (c) the radio frequency tag communicating information by modulating reflectance characteristics of the tag antenna;
- wherein the tag antenna comprises an antenna element electrically connected to the semiconductor device;
- and
- wherein a further antenna element cooperates with the first-mentioned antenna element to form the tag antenna, the further antenna element comprising said magnetic material coated with an electrically conducting material.
4 more elements
An apparatus, comprising:
- a radio frequency (RF) transponder (tag), the RF tag comprising a tag antenna, tag electronics for storing information in a codable and recodable memory and for communicating information to a base station by modulating reflectance characteristics of the tag antenna, and a tag power supply;
- and
- a non-linear magnetic material operably associated with said RF tag, the non-linear magnetic material generating a varying electronic article surveillance magnetic field when the non-linear magnetic material is in a magnetic field;
- wherein said magnetic field is sinusoidally varying with a frequency f0, the electronic article surveillance magnetic field varying with a frequency having higher harmonics of f0.
1 more element
An apparatus, comprising:
- a radio frequency (RF) transponder (tag), the RF tag comprising a tag antenna, tag electronics for storing information in a codable and recodable memory and for communicating information to a base station by modulating reflectance characteristics of the tag antenna, and a tag power supply;
- and
- a non-linear magnetic material operably associated with said RF tag, the non-linear magnetic material generating a varying electronic article surveillance magnetic field when the non-linear magnetic material is in a magnetic field;
- wherein the tag antenna comprises the non-linear magnetic material.
1 more element
Dependencies are inferred from the claim text.