Audio jack enabled synthetic barcode module

摘要

A coupon management system includes a synthetic barcode module. The synthetic barcode module comprises light management components and a controller. The light management components include an LED operating as both an optical receiver and an optical emitter The controller interfaces with a compatible electronic device such as a cell phone via an analog audio interface, receives analog audio signals corresponding to coupon barcodes, produces timing data for managing optical output, determines if the received light pulses correspond to scanner output, and using the timing data outputs driver signals to cause the light management module to emit light pulses that emulate light reflected from a scanned barcode to communicate the coupon barcode optically.