CA2265819C - An apparatus for data communication and deactivation of electronic article surveillance tags - Google Patents

An apparatus for data communication and deactivation of electronic article surveillance tags Download PDF

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Publication number
CA2265819C
CA2265819C CA002265819A CA2265819A CA2265819C CA 2265819 C CA2265819 C CA 2265819C CA 002265819 A CA002265819 A CA 002265819A CA 2265819 A CA2265819 A CA 2265819A CA 2265819 C CA2265819 C CA 2265819C
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CA
Canada
Prior art keywords
data
articles
transponders
recited
communication system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002265819A
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French (fr)
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CA2265819A1 (en
Inventor
Jorge F. Alicot
Richard B. Frederick
Scott A. Tribbey
Hubert A. Patterson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sensormatic Electronics LLC
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Sensormatic Electronics Corp
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Publication date
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Publication of CA2265819A1 publication Critical patent/CA2265819A1/en
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Publication of CA2265819C publication Critical patent/CA2265819C/en
Anticipated expiration legal-status Critical
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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—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
    • G08B13/2405—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 characterised by the tag technology used
    • G08B13/2414—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 characterised by the tag technology used using inductive tags
    • G08B13/242—Tag deactivation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—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
    • G08B13/2451—Specific applications combined with EAS
    • G08B13/246—Check out systems combined with EAS, e.g. price information stored on EAS tag
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—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
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2474—Antenna or antenna activator geometry, arrangement or layout

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
  • Cash Registers Or Receiving Machines (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

An apparatus for data communication and deactivating an electronic article surveillance tag comprising an antenna (54) for communicating with a transponder located within a predetermined area and a deactivation coil (52) for deactivating an electronic article surveillance tag located within the predetermined area.

Description

51015202530CA 02265819 1999-03-09W0 98/13805 PCT/US97/17570AN APPARATUS FOR DATA COMMUNICATION AND DEACTIVATION OF_ CT 0N1 T S lAQ§L O I NTIThis invention relates to electronic article surveillance and, more particularly, to datacommunication and deactivation of electronic article surveillance tags.B RO D OF THE INVENTI NElectronic article surveillance (EAS) systems have employed either reusable EAS tagsor disposable EAS tags to monitor articles to prevent shoplifting and unauthorized removal ofarticles from store. The reusable EAS tags are normally removed from the articles before thecustomer exits the store. The disposable tags are generally attached to the packaging byadhesive or are disposed inside the packaging. These tags remain with the articles and mustbe deactivated before they are removed from the store by the customer. Deactivation devicesuse coils which are energized to generate a magnetic field of sufficient magnitude to renderthe EAS tag inactive. The deactivated tags are no longer responsive to the incident energy ofthe EAS system so that an alarm is not triggered.In one type of deactivation system the checkout clerk passes the articles one at a timeover a deactivation device to deactivate the tags and then places the articles into a shoppingbag or other bulk container. This system employs one coil disposed horizontally within ahousing. The clerk moves the tagged articles across the horizontal top surface of the housingsuch that the tag is disposed generally coplanar with the coil.Another deactivation system utilizes a housing having a cavity with three sets of twocoils each disposed around the cavity in respective x, y, and z axis planes, such that there is acoil located in a plane parallel to each side of the cavity and two coils disposed around thecavity with one being near the top and the other being near the bottom of the cavity. Thecheckout clerk places a bag or bulk container into the cavity and then places the taggedarticles into the bag. After all of the articles have been placed into the bag or when the bag isfull, the clerk energizes the coils to deactivate all of the EAS tags in the bag. The clerk thenlifts the bag out of the cavity. This system provides deactivation of multiple tags at one timeand does not require specific orientation of the tags.ISUBSTITUTE SHEET (RULE 26)lO15B)L“'2)JCA 02265819 2003-04-0377496-18Many retail establishments having high volumesfind it desirable to expedite and facilitate the checkoutprocess including the gathering of data about the articlebeing purchased and the deactivation of the EAS tags. Thedata required by many retailers includes articleand otheridentification, the price of the article,information for inventory control. The bar code labels incurrent use are limited in the amount of data that can beprovided, and the checkout clerk can have difficultiesgetting the proper line of sight between the bar code labeland bar code scanner thereby slowing the checkout process.SUMMARY OF THE INVENTIONIn accordance with the present invention there isprovided an apparatus for data communication anddeactivation of an electronic article surveillance tag" Theapparatus comprises an antenna positioned for communicationwith a transponder located within a predetermined area, anda deactivation coil for deactivating an electronic articlesurveillance tag located within the predetermined area.The system of the present invention includes EASdeactivation and information gathering for the point of saletransaction to provide a complete solution to expediteretail checkout. High frequency radio frequencyidentification (RFID) tags are easily shielded or detuned byproximity to various materials and the human body, and RFIDtags having small coil geometry do not provide the wide exitEAS coverage the retailers desire. However, the RFID tagsare well suited to providing data about the article to whichthey are attached and are well suited to an expeditedgathering of that data at the point of sale. In addition,data can be written to the RFID tag which can include the74.41025CA 02265819 2003-04-0377496-18date and place of sale, the selling price, and themanufacturer for authenticity of the article. An EAS tagprovides the security needed by the retail environment.Other objectives, advantages, and applications ofthe present invention will be made apparent by the followingdetailed description of the preferred embodiment of theinvention.One broad aspect of the invention provides anapparatus for use with articles having associated datatransponders and associated electronic article surveillancetags, said apparatus comprising: a housing defining a volumein which a bag can be placed for packaging said articles,said housing having an open side for removal of said bag andan open top; a plurality of deactivation coils positioned insaid housing for simultaneously deactivating said electronicarticle surveillance tags when said articles are in saidvolume; and a data communication system comprising anantenna positioned in said housing for communicating withsaid data transponders when said articles are in saidvolume.DESCRIPTION OF THE DRAWINGSFig. 1 is a perspective view of a bagging stationhaving a data capture and EAS tag deactivation systemaccording to one embodiment of the present invention.Fig. 2 is a perspective partially cut away viewshowing one embodiment of the deactivation coils andtransponder interrogation antenna in the bagging station ofFig. 1.2a1015202530CA 02265819 1999-03-09WO 98/13805 PCTIUS97/17570Fig. 3 is a diagram showing one embodiment of an EAS deactivation coil andtransponder interrogation antenna.Fig. 4 shows an alternative embodiment of the present invention.Fig. 5 illustrates a preferred embodiment of an integrated tag for use with the presentinvention.DE I AILEIQ IQESQBIE ! IQN OF BREE ERRED EMBODIMEN 1 5Referring to Fig. 1, a bagging station 10 incorporating a data capturing and EASdeactivation system according to one embodiment of the present invention is shown.Bagging station 10 has three sidewalls 12, 14, and 16 and a bottom 18 that define a volume20 in which a shopping bag 22 or other bulk container can be placed. A quantity of plasticshopping bags can be placed on bulk holder 24 with their handles on bag racks 26 and 28 andthen pulled out for use one at a time. Bulk holder 24 and bag racks 26 and 28 are mounted onsidewall 16. Shopping bag 22 contains article 30 which has an associated EAS tag 32 for usewith an EAS system as is known in the art and at transponder tag 33 that contains a radiofrequency identification (RFID) chip and an antenna. The RFID chip of transponder tag 33has a memory that can contain data that identifies the article and the pricing of the article aswell as other information to assist in the point of sale transaction, and inventory control.Preferably EAS tag 32 is a magnetoacoustic EAS tag sold by the assignee of this applicationunder the brand name “ULTRAoMAX®”, such EAS tags are used widely for theftdeterrence.Fig. 2 shows a deactivation coil and transponder antenna arrangement of the presentinvention for use with bagging station 10. Deactivation coil 34 is located inside sidewall 12,and deactivation coil 36 is located inside sidewall 14. Sidewalls 12 and 14 are parallel so thatdeactivation coils 34 and 36 are located in parallel planes. Deactivation coil 38 has four coilsections 40, 42, 44, and 46. Coil section 40 is located in bottom 18 near the front portionthereof, and coil section 42 is located in sidewall 16 near the top portion thereof. Coilsections 44 and 46 are located in sidewalls 12 and 14 respectively along the approximaterespective diagonals of deactivation coils 34 and 36. A power supply energizes deactivationcoils 34, 36, and 38 to create the magnetic fields to deactivate EAS tag 32. Antenna 48 forinterrogating transponders located in a predetermined area, such as volume 20, captures thedata about article 30 that is contained in transponder tag 33.3SUBSTITUTE SHEET (RULE 26)1015202530CA 02265819 1999-03-09wo 98/13805 PCT/US97/17570Fig. 3 illustrates diagrammatically one embodiment of an EAS deactivation coil andtransponder interrogation antenna in a sidewall of the system shown in Figs. 1 and 2. Coilsection 42 of deactivation coil 38 is located near the top portion of sidewall 16 as illustratedin Figs. 1 and 2. Interrogation coil 48 can be a simple loop antenna as shown or it cancomprise alternate configurations as is known in the art.Fig. 4. shows an alternative embodiment of the present invention in which the EASdeactivation coil and the transponder coil are positioned in a pad or housing 50, such as thedeactivation pad marketed by the assignee of this invention under the brand name “RapidPad""“. EAS deactivation coil 52 is located inside housing 50, and transponder interrogationantenna 54 is also positioned inside housing 50. As shown antenna 54 is positioned inside ofdeactivation coil 52; however, other configurations are possible, for example, antenna 54 canbe located outside of deactivation coil 52 or antenna 54 and deactivation coil 54 can overlap.Deactivation coil 52 is actuated by EAS deactivation system 56 as is known in the art.Antenna 54 is connected to transponder interrogation system 58 which provides theappropriate interrogation signals, as is known in the art, to a transponder positioned in apredetermined area, such as an area above housing 50, to gather information about the articlebeing checked out and then use such information for the transaction at the point of sale. Inaddition, transponder interrogation system 58 can provide or write information to thetransponder. This information can include the date and place of sale, the selling price, andmanufacturer for authenticity of the article. The information can be displayed on display 60which can be a monitor, cash register display or other suitable display. In addition,transponder interrogation system 58 can store such information for inventory control or otheruses.Referring to Fig. 5, a preferred embodiment of a multifunction tag 10 for use with thepresent invention is shown. A bottom cover 12, such as a substrate or film, has an uppersurface 14 on which EAS tag 16 is positioned. A transponder 18 comprising an RFID chip20 and an antenna 22 attached to RFID chip 20 are positioned on surface 14 such that antenna22 is located around EAS tag 16. RFID chip 20 contains logic and memory as is known inthe art, and the memory can contain data about the article to which it will be attached. Thisdata can include identification of the article, the price of the article, and inventory controlinformation. A cover 24, such as a film or mylar, covers EAS tag 16 and transponder 18.4SUBSTITUTE SHEET (RULE 25)CA 02265819 1999-03-09W0 98/ 13805 PCT/US97/ 17570The surface of cover 24 which contacts surface 14, EAS tag 16, and transponder 18 can alsohave an adhesive to assist in bonding the parts together. Cover 12 can comprise a housing thathas a cavity that is sized to accommodate transponder 18 and a another cavity that is sized toaccommodate EAS tag 16.It is to be understood that variations and modifications of the present invention can bemade without departing from the scope of the invention. It is also to be understood that thescope of the invention is not to be interpreted as limited to the specific embodimentsdisclosed herein, but only in accordance with the appended claims when read in light of theforegoing disclosure.5SUBSTITUTE SHEET (RULE 26)

Claims (20)

CLAIMS:
1. An apparatus for use with articles having associated data transponders and associated electronic article surveillance tags, said apparatus comprising: a housing defining a volume in which a bag can be placed for packaging said articles, said housing having an open side for removal of said bag and an open top; a plurality of deactivation coils positioned in said housing for simultaneously deactivating said electronic article surveillance tags when said articles are in said volume; and a data communication system comprising an antenna positioned in said housing for communicating with said data transponders when said articles are in said volume.
2. An apparatus as recited in claim 1, wherein said data transponders have data stored about said articles with which said data transponders are associated and said data communication system gathers the data from said data transponders when said articles are in said volume.
3. An apparatus as recited in claim 2, wherein said data gathered from said data transponders comprises at least one of selling prices of said articles, identification of said articles, and identities of manufacturers of said articles.
4. An apparatus as recited in claim 3, further comprising a display connected to said data communication system and wherein said data communication system provides the data gathered from data transponders to said display.
5. An apparatus as recited in claim 1, wherein said data communication system can transmit data to said data transponders when said data transponders are in said volume and said data transponders can receive and store data transmitted from said data communication system.
6. An apparatus as recited in claim 5, wherein said data transmitted by said data communication system comprises at least one of dates of sale of said articles, places of sale of said articles, and selling prices of said articles.
7. An apparatus as recited in claim 2, wherein said data communication system can transmit data to said data transponders when said data transponders are in said volume and said data transponders can receive and store data transmitted from said data communication system.
8. An apparatus as recited in claim 7, wherein said data transmitted by said data communication system comprises at least one of dates of sale of said articles, places of sale of said articles, and the selling prices of said articles.
9. An apparatus as recited in claim 1, wherein said plurality of deactivation coils comprises three deactivation coils.
10. An apparatus as recited in claim 9, wherein a first deactivation coil of said three deactivation coils is positioned in a first wall of said housing, a second deactivation coil of said threes deactivation coils is positioned in a second wall of said housing, and a third deactivation coil of said three deactivation coils is positioned in said housing such that said third deactivation coil intersects said first and second deactivation coils at an angle that is greater than zero degrees and less than ninety degrees.
11. An apparatus as recited in claim 10, wherein said first and second walls are opposite each other and said antenna for communicating with said data transponders is positioned in a wall located between said first and second walls.
12. An apparatus as recited in claim 11, wherein said third deactivation coil is collinear with a diagonal of said first and second deactivation coils.
13. An apparatus as recited in claim 12, wherein said first and second walls are parallel.
14. An apparatus as recited in claim 13, wherein said data transponders have data stored about said articles with which said data transponders are associated and said data communication system gathers the data from said data transponders when said articles are in said volume.
15. An apparatus as recited in claim 14, wherein said data gathered from said data transponders comprises at least one of selling prices of said articles, identification of the articles and identification of manufacturers of said articles.
16. An apparatus as recited in claim 15, further comprising a display connected to said data communication system and wherein said data communication system provides the data gathered from said data transponders to said display.
17. An apparatus as recited in claim 13, wherein said data communication system can transmit data to said data transponders when said data transponders are in a predetermined area and said data transponders can receive and store data transmitted from said data communication system.
18. An apparatus as recited in claim 17, wherein said data transmitted by said data communication system comprises at least one of dates of sale of said articles, places of sale of said articles, and selling prices of said articles.
19. An apparatus as recited in claim 14, wherein said data communication system can transmit data to said data transponders when said data transponders are in a predetermined area and said data transponders can receive and store data transmitted from said data communication system.
20. An apparatus as recited in claim 19, wherein said data transmitted by said data communication system comprises at least one of dates of sale of said articles, places of sale of said articles, and selling prices of said articles.
CA002265819A 1996-09-26 1997-09-26 An apparatus for data communication and deactivation of electronic article surveillance tags Expired - Fee Related CA2265819C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/721,175 1996-09-26
US08/721,175 US5990794A (en) 1996-09-26 1996-09-26 Apparatus for data communication and deactivation of electronic article surveillance tags
PCT/US1997/017570 WO1998013805A1 (en) 1996-09-26 1997-09-26 An apparatus for data communication and deactivation of electronic article surveillance tags

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CA2265819A1 CA2265819A1 (en) 1998-04-02
CA2265819C true CA2265819C (en) 2004-11-30

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US (1) US5990794A (en)
EP (1) EP0928472B1 (en)
JP (1) JP3876000B2 (en)
AR (1) AR010483A1 (en)
AU (1) AU729012B2 (en)
BR (1) BR9713228A (en)
CA (1) CA2265819C (en)
DE (1) DE69735193T2 (en)
HK (1) HK1023436A1 (en)
WO (1) WO1998013805A1 (en)

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US5990794A (en) 1999-11-23
WO1998013805A1 (en) 1998-04-02
EP0928472A4 (en) 2002-04-10
DE69735193T2 (en) 2006-11-02
JP2001503890A (en) 2001-03-21
HK1023436A1 (en) 2000-09-08
AU4740797A (en) 1998-04-17
DE69735193D1 (en) 2006-04-13
CA2265819A1 (en) 1998-04-02
BR9713228A (en) 2000-04-04
EP0928472A1 (en) 1999-07-14
AR010483A1 (en) 2000-06-28
EP0928472B1 (en) 2006-02-01
JP3876000B2 (en) 2007-01-31
AU729012B2 (en) 2001-01-25

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