1.
    发明专利
    未知

    公开(公告)号:DE69903805D1

    公开(公告)日:2002-12-12

    申请号:DE69903805

    申请日:1999-03-05

    Applicant: IBM IBM UK

    Abstract: A system collects information associated with movement between locations. The system includes individual cards. Each individual card has a storage area and an interactor for receiving promotional unit data. A plurality of promotional units are also included. Each promotional unit transmits respective promotional unit data to any card with which it interacts. The promotional unit data within each card may then be downloaded to determine with which promotional units interaction has occurred.

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