Abstract: A system for uniquely identifying a medication unit such as a pill, a tablet, or a capsule includes a unique identifier located directly on the medication unit that distinguishes the medication unit from any medication unit. The system further includes a database that is hosted on a server device, the database being searchable to identify the medication unit and including the unique identifier and other information associated with the medication unit. The system further includes a scanner that scans the unique identifier to provide the unique identifier o a user device that communicates with the server device via a network to identify the medication unit.

Abstract: Surface acoustic wave (SAW) identification tag discrimination methods including, in one embodiment (1) detecting a signal emanating from an electronic device operating within a SAW tag frequency band; (2) identifying a null period in a transmission pattern in the signal; and (3) effecting communication of information during the null period.

Abstract: A method of accommodating code collisions from multiple SAW identification tag coded response pulses. In one embodiment, the method includes: (1) separating probable candidates by time-domain; (2) classifying the probable candidates by code-division separation; (3) employing known coded identification signals to adjust the probable candidates; and (4) correlating the multiple SAW identification tag coded response pulses to identify the probable candidates for further processing.