Abstract:
According to an aspect of the invention, a tag system for facilitating a purchase of a sellable item is conceived, the tag system comprising an anti-theft tag and an NFC tag, wherein said NFC tag is arranged to support a payment transaction for purchasing the sellable item, and wherein the NFC tag is further arranged to deactivate the anti-theft tag when the payment transaction has been completed.

Description:
FIELD OF THE INVENTION 
       [0001]    The invention relates to a tag system. Furthermore, the invention relates to a sellable item. Furthermore, the invention relates to a method for facilitating the purchase of a sellable item. 
       BACKGROUND OF THE INVENTION 
       [0002]    It is known that NFC-enabled mobile devices, such as NFC-enabled smart phones or tablets, can be used to facilitate the purchase of sellable items by performing payment transactions. 
         [0003]    U.S. Pa. No. 8,086,497 B1 describes background prior art. In particular, U.S. Pat. No. 8,086,497 describes price searching and customer self-checkout on a mobile device. A system for purchasing products comprises at least one subsystem that receives from a mobile device at least price and seller identification data of a product at least the price of said product having been electronically read by the mobile device and at least one subsystem that charges a user for the product based upon the received price and identification data. 
         [0004]    US 2010/0082485 A1 describes systems, methods, and devices for conducting sales transactions. Embodiments include handheld, portable, electronic, point of purchase devices configured to acquire identification information from articles to be purchased, to determine a purchase price, and to acquire payment information for the purchase price. The point of purchase devices may include one or more input devices such as a near field communication device, a camera, a scanner, and a biometric sensor for acquiring the identification information and/or the payment information. In some embodiments, the near field communication device may be detachable from the point of purchase device. The point of purchase devices also may contain communication interfaces, such as a near field communication interface, a local area network interface, a short message service interface, and a personal area network interface, for transmitting the information to an external server. 
         [0005]    In an embodiment described in US 2010/0082485 A1, a system which allows a customer to scan articles and pay for the articles without the assistance of a salesperson may also operate in conjunction with the merchant&#39;s security system to impede the removal of un-purchased articles from the store. For example, the articles may include security tags that can be deactivated after payment to prevent an alarm from sounding when the articles are removed from the store. These security tags are NFC tags encrypted with security information that when activated works in conjunction with the store&#39;s security system to sound an alarm if the tags are removed from the store without being deactivated (section [0282]). 
         [0006]    The above-mentioned embodiment described in US 2010/0082485 A1 has the disadvantage that it is not designed for use with conventional anti-theft tags, such as anti-theft RF tags. 
       SUMMARY OF THE INVENTION 
       [0007]    It is an object of the invention to improve systems, methods, and devices for conducting sales transactions of the kind set forth. More specifically, it is an object of the invention to improve systems, methods, and devices which combine sales transactions with a deactivation of security tags. This object is achieved by a tag system as claimed in claim  1  and by a method for facilitating the purchase of a sellable item as claimed in claim  8 . 
         [0008]    According to an aspect of the invention, a tag system for facilitating a purchase of a sellable item is conceived, the tag system comprising an anti-theft tag and an NFC tag, wherein said NFC tag is arranged to support a payment transaction for purchasing the sellable item, and wherein the NFC tag is further arranged to deactivate the anti-theft tag when the payment transaction has been completed. 
         [0009]    According to an exemplary embodiment of the invention, the NFC tag is arranged to deactivate the anti-theft tag by destroying electronic components comprised in said anti-theft tag. 
         [0010]    According to a further exemplary embodiment of the invention, the NFC tag is arranged to deactivate the anti-theft tag by driving a current via conductors through a fuse, said fuse forming part of an LC circuit comprised in said anti-theft tag. 
         [0011]    According to a further exemplary embodiment of the invention, the NFC tag is arranged to deactivate the anti-theft tag by writing a disable value into a memory unit comprised in said anti-theft tag. 
         [0012]    According to a further exemplary embodiment of the invention, the NFC tag is arranged to deactivate the anti-theft tag upon or after receipt of a confirmation signal from an NFC-enabled mobile device, said confirmation signal indicating that the payment transaction has been completed. 
         [0013]    According to a further exemplary embodiment of the invention, the NFC tag comprises a storage unit for storing payment transaction data, such as a price value of the sellable item. 
         [0014]    According to a further exemplary embodiment of the invention, the tag system extends to a goods tracking system or article database in which the sellable item is marked as sold when the payment transaction has been completed. 
         [0015]    According to a further aspect of the invention, a sellable item is conceived which comprises the inventive tag system. 
         [0016]    According to a further aspect of the invention, a method for facilitating the purchase of a sellable item comprising a tag system is conceived, the tag system comprising an anti-theft tag and an NFC tag, wherein said NFC tag supports a payment transaction for purchasing the sellable item, and wherein the NFC tag deactivates the anti-theft tag when the payment transaction has been completed. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0017]    The invention will be described in more detail with reference to the appended drawings, in which: 
           [0018]      FIG. 1  illustrates a tag system according to an exemplary embodiment of the invention; 
           [0019]      FIG. 2  illustrates a system comprising a sellable item and an NFC-enabled mobile device, according to an exemplary embodiment of the invention. 
       
    
    
     DESCRIPTION OF EMBODIMENTS 
       [0020]      FIG. 1  illustrates a tag system according to an exemplary embodiment of the invention. The tag system  18  comprises an anti-theft RF tag  10  coupled to an NFC tag  15 . The anti-theft RF tag  10  comprises an LC circuit  11 ,  12 . A fuse  13  forms part of the LC circuit  11 ,  12 . The NFC tag  15  contains an NFC circuit  16  and an NFC antenna  17 . The NFC circuit  16  is connected to the fuse  13  via conductors  14 . When a consumer buys the sellable item which comprises the tag system  18 , and the payment has been performed, the NFC circuit  16  drives a current through the inductors  14  and thereby destroys the fuse  13 . The LC circuit  11 ,  12  is now open and the anti-theft RF tag  10  is detuned and thereby deactivated. The advantage of this embodiment is that it is compatible with existing anti-theft RF systems based on anti-theft RF tags. 
         [0021]      FIG. 2  illustrates a system comprising a sellable item and an NFC-enabled mobile device, according to an exemplary embodiment of the invention. The sellable item  20  comprises the inventive tag system  18 . The NFC-enabled mobile device  21  is arranged to communicate with the sellable item  20 , in particular with the NFC tag  15  comprised in the tag system  18  of the sellable item  20 , by means of near field communication (NFC). 
         [0022]    Thus, a combined or integrated purchase and anti-theft system is realized which may be based on conventional anti-theft devices. Sellable items can be bought by making use of the capabilities of a personal, networked reader device (typically a mobile phone or a tablet) which communicates with tag systems embedded in or attached to these sellable items, and embodying a combined purchase and anti-theft system of the kind set forth. The integration of purchase and anti-theft functionality assures that a sold item is marked correspondingly and that no anti-theft function will be activated for the sold item. Optionally, the integration may extend to a goods tracking system or an article database in which the sellable item is marked as “sold”. This removes the need of a central cashier desk or point-of-sale (POS). 
         [0023]    Hereinafter an exemplary use case will be described. The use case is based on the use of a smart phone or a tablet acting as a personal reader and on-line payment device and equipped with RFID and NFC capabilities. In this exemplary use case the following steps are performed:
       i. The owner of the personal reader device (‘customer’) enters a shop.   ii. Any sellable item in the shop is tagged (i.e. comprises the inventive tag system) and the reader device can be used to uniquely identify this item. The personal reader device is then used to read the NFC tag comprised in the tag system attached to this sellable item.   iii. Characteristics (such as price, authenticity, detailed operation specification, application, etc.) can be obtained through the personal reader device, for example the price of this article as stored in the NFC tag or retrieved from a (network accessible) database.   iv. The device owner or customer takes the decision to buy this item.   v. Instead of having to perform payment at a central point-of-sale the payment is performed by performing an online payment transaction.   vi. After the payment transaction has been completed the article is at the same time registered in the goods tracking system as “sold”. Also, the completion of the payment transaction results in immediate disabling of the anti-theft protection for this article, i.e. the NFC tag deactivates the anti-theft tag.       
 
         [0030]    The skilled person will appreciate that the inventive tag system may also comprise another type of conventional anti-theft tag instead of the anti-theft RF tag. For example, in case a conventional anti-theft EM tag is used, the anti-theft protection must be disabled by burning a fuse (resulting in a change of resonance frequency) or by destroying anti-theft electronics within the anti-theft EM tag. If the anti-theft RF tag is used, the anti-theft protection may be disabled by burning a fuse which opens an LC circuit and consequently detunes the anti-theft RF tag (as described above), by destroying electronics within the anti-theft RF tag or by writing a disable value into a memory unit comprised in the anti-theft RF tag (i.e. a “soft” deactivation). In all cases the NFC tag deactivates the anti-theft tag, according to the basic principle of the invention. 
         [0031]    It is noted that the drawings are schematic. In different drawings, similar or identical elements are provided with the same reference signs. Furthermore, it is noted that in an effort to provide a concise description of the exemplary embodiments, implementation details which fall into the customary practice of the skilled person may not have been described. It should be appreciated that in the development of any such implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers&#39; specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill. 
         [0032]    The above-mentioned embodiments illustrate rather than limit the invention, and the skilled person will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference sign placed between parentheses shall not be construed as limiting the claim. The word “comprise(s)” or “comprising” does not exclude the presence of elements or steps other than those listed in a claim. 
         [0033]    The word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements and/or by means of a suitably programmed processor. In a device claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. 
       List of Reference Numbers 
       [0034]      10  anti-theft RF tag 
         [0035]      11  capacitor 
         [0036]      12  RF antenna 
         [0037]      13  fuse 
         [0038]      14  conductors 
         [0039]      15  NFC tag 
         [0040]      16  NFC circuit 
         [0041]      17  NFC antenna 
         [0042]      18  tag system 
         [0043]      20  sellable item 
         [0044]      21  NFC-enabled mobile phone