Abstract: A system and method for carrying personal and/or medical information includes a locket designed to contain a memory electronic device to store information about the user. The locket is design to be opened to provide ready access to a machine readable portion of the memory device by a reader. The locket is combined with a pocket in a shoe to carry the locket unobtrusively. The locket and pocket can include a logo which will alert medical or other emergency personnel as to the existence of the locket during an emergency.

Abstract: Optical image readers have a two-dimensional image sensor and an auto-discrimination function. The auto-discrimination function identifies optical codes by type for pixel clusters and, in some cases, tilt angle and start/stop coordinates. The clustered pixel data is passed to an appropriate decoder identified by the auto-discrimination function based upon a likelihood that the cluster contains an optical code of a particular type. Line drawing technique provide for adequate sampling of the clustered pixel data code based on the tilt angle of the code relative to an image sensor array.