Examines the “Supertag” automatic identification system which is an innovative electronic replacement for barcodes and which can also function as an anti shoplifting device. Each Supertag is a single integrated circuit chip plus a printed flat aerial. Using radio links, Supertag readers are capable of multiple identification and counting at electronic speed. Outlines the technical developments which brought about “electronic counting” and compares them with conventional RFID systems. Describes the potential used for Supertag including its ability to “read” the entire contents of a supermarket trolley in a second, making it very attractive for use in the retail industry.
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