| 摘要 |
<p>A system for individually tracing units of merchandise with authentication devices or tags (10) as such tags (with merchandise) move through channels of commerce. The total system incorporates a non-counterfeitable authenticator or verification tag (10) which bears a machine-readable identification number (26, 36, 38) and which in one form includes perforated, tear-off sections (14, 18) bearing the identification number and in another form (Fig. 5) is adhesively integrated with a product package. Operating with the tag, the physical system includes a central processor (40) with a memory means that is addressable by using the tag identification number. A tag reader (106) senses the machine-readable identification number (may also verify the tag) and addresses the memory means for registering information to specifically identify the tag and indicate batch information (80). As the tag (and unit of merchandise) move to commerce, the memory information is supplemented to provide a history (Fig. 4) of such movement. In subsequent operations, the memory can then be tested for meaningful information on the merchandise. As one key to using the method to procure significant data, the system incorporates apparatus (64) for testing the content of the memory to manifest the identification of specific tags that are related as a subset of merchandise of interest.</p> |
