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Self-checkout point-of-transaction system including deactivatable electro-optically coded surveillance tags

  • US 5,979,758 A
  • Filed: 06/12/1998
  • Issued: 11/09/1999
  • Est. Priority Date: 08/25/1988
  • Status: Expired due to Term
First Claim
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1. A self-checkout apparatus for processing a sales transaction of an article selected from a plurality of articles having respectively associated attached surveillance tags, each surveillance tag having encoded data, an activated state and a deactivated state, the self-checkout apparatus including a deactivating region in which a surveillance tag from a selected article is positioned in order to change the surveillance tag from the activated state to the deactivated state, the apparatus comprising:

  • a) acquisition means for producing a position signal indicative of the positioning of the surveillance tag of the selected article in the deactivating region, and for remotely acquiring from the positioned surveillance tag the encoded data representing the selected article to generate a purchase signal indicative of the identity of the selected article;

    b) verification means for verifying, on the bases of the purchase signal and the position signal, whether the positioned surveillance tag is associated with the selected article, and for generating a positive verification signal when the positioned surveillance tag is indeed associated with the selected article; and

    c) deactivation means for deactivating the positioned surveillance tag attached to the selected article in response to generation of the positive verification signal.

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