Integrated data reader and electronic article surveillance (EAS) system

• US 7,619,527 B2
• Filed: 02/08/2006
• Issued: 11/17/2009
• Est. Priority Date: 02/08/2005
• Status: Active Grant

• Current Assignee: Sensormatic Electronics LLC (Johnson Controls International plc)
• Original Assignee: Datalogic Scanning Incorporated (Datalogic S.p.A.), Sensormatic Electronics Corporation (Johnson Controls International plc)
• Inventors: Drew, Douglas A., Aguirre, Gerardo, Barnum, Garrett J., Easter, Ronald B., Newman, David J., Friend, Matthew J.
• Primary Examiner(s): Goins; Davetta W
• Assistant Examiner(s): Labbees; Edny
• Application Number:
  US11/351,310
• Publication Number:
  US 20060208894A1
• Time in Patent Office: 1,378 Days
• Field of Search: 3405721-5729, 235435-473
• US Class Current: 340/572.3
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10554 Moving beam scanning
• CPC Class Codes: G08B 13/2402 Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting mechanical aspects of the tags, e.g. related to locking E05B73/0017; RFID readers G06K7/00; RFID tags G06K19/00; access control systems G07C9/00; anti-theft control in point of sale systems G07G3/003; security seals G09F3/03
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

An integrated data reader and electronic article surveillance (EAS) system, and methods of operation. Several configurations are also disclosed for alternate deactivation coil designs and mounting schemes.

Claims

1. An apparatus for use at point of sale, comprising

an optical data reader having a plurality of optical scanning elements for reading optical tags being passed through a scan volume;

a deactivator for deactivating electronic article surveillance (EAS) tags, said deactivator having at least one magnetic deactivation coil unit arranged to avoid interference with operation of the optical data reader, wherein the deactivation coil unit comprises a plurality of windings disposed around a central opening without a solid core, the deactivation coil unit positioned to permit the data reader to form a read path through the central opening into the scan volume,

wherein the windings of the deactivation coil unit are arranged with a cross-sectional geometry that avoids blocking the reading path of the data reader through the central opening.

2. The apparatus of claim 1, wherein the deactivator comprises a plurality of magnetic deactivation coil units, the apparatus further comprising a controller for controlling operation of said data reader and/or said deactivator wherein said controller is programmed to detect which of said magnetic deactivation coil units is best suited for deactivation and only energizes that coil unit.

3. The apparatus of claim 1 wherein the optical data reader comprises a lower section having a substantially horizontal window and an upper section having a substantially vertical window, the deactivator including at least first and second magnetic deactivation coil units, the first magnetic deactivation coil unit comprising a plurality of windings disposed around a central opening without a solid core, the first deactivation coil unit positioned proximate the horizontal window forming a first read path through the central opening and through the horizontal window to the scan volume, the second magnetic deactivation coil unit comprising a plurality of windings disposed around a central opening without a solid core, the second deactivation coil unit positioned proximate the vertical window forming a second read path through the central opening and through the vertical window to the scan volume.

4. An apparatus according to claim 3 further comprising a controller for controlling operation of said data reader and/or said deactivator wherein said controller is programmed to detect which of said magnetic deactivation coil units is best suited for deactivation and only energizes that coil unit for deactivating an EAS tag.

5. An apparatus according to claim 3 further comprising a controller for controlling operation of said deactivator, wherein the deactivation coil units are operable for both detection and deactivation, wherein said controller is programmed to first activate that coil unit that first detects presence of an EAS tag.

6. An apparatus according to claim 1 wherein the deactivation unit comprises on the order of 50 windings.

16. An apparatus according to claim 1 wherein the data reader comprises an L-shaped two-plane optical scanner.

7. An apparatus for use at point of sale, comprising

a housing;

an optical data reader disposed in the housing and having at least a first window through which the optical data reader reads optical tags being passed through a read volume;

a deactivator for deactivating electronic article surveillance (EAS) tags, said deactivator having at least a first magnetic deactivation coil unit disposed in the housing proximate the first window, wherein the first deactivation coil unit comprises a plurality of windings disposed around a central opening without a solid core, the first deactivation coil unit positioned to permit the data reader to form a read path through the central opening and into the read volume.

8. An apparatus according to claim 7 wherein the windings of the first deactivation coil unit are arranged with a cross-sectional geometry that avoids blocking the reading path of the data reader through the central opening.

9. An apparatus according to claim 7 wherein the windings of the first deactivation coil unit are arranged having a cross-sectional geometry with a beveled profile along the central opening.

10. An apparatus according to claim 7 wherein the windings of the first deactivation coil unit are arranged to form a beveled profile along an inside surface thereof adjacent the central opening such that a diameter of the central opening proximate the optical data reader is smaller than a diameter of the central opening distal the optical data reader.

11. An apparatus according to claim 7 wherein the magnetic coil unit is configured in a generally rectangular configuration arranged around the central opening.

12. An apparatus according to claim 7 wherein the windings are arranged in a non-rectangular cross-sectional profile.

13. An apparatus according to claim 7 wherein the windings are arranged in a cross-sectional profile selected from the group consisting of:

non-rectangular, triangular, trapezoidal.

14. An apparatus according to claim 7 further comprising a hinge mounting bracket for supporting the first magnetic deactivation coil unit.

15. An apparatus according to claim 14 wherein the first magnetic deactivation unit is pivotable via the hinge mounting bracket between a first position proximate the first window and a second position away from the window.

17. An apparatus according to claim 7 wherein the optical data reader comprises an L-shaped two-plane optical scanner.