Machine readable merchandise marking tag

Abstract From the Canadian patent

The code and record medium of the present invention is comprised of a plurality of code marks which are positioned around the periphery of one or more circles in A predetermined sequence, on a record member for merchan-, dise marking or other appropriate use. One or more of the code marks can be designated to be a marker for an orientation of the code sequence. A machine can read the code marks by scanning the code marks with e light beam or, other suitable scanner, is an associated article of merchandise, for example, is moved transversely across the scan path of the beam. Light reflections from the code marks are detected end converted into corresponding electrical signals. The electrical …