Patent ID: 8376234

Claim:
An arrangement for electro-optically reading symbols having symbologies with multi-unit, bar and space element, start and stop patterns on curved surfaces of objects, comprising: a data capture assembly for capturing light from a target symbol over a scan line, and for generating an electrical analog signal indicative of the captured light over the scan line; and a controller for digitizing the electrical analog signal into a digitized signal, for decoding the digitized signal between the start and stop patterns into valid characters of the target symbol, for identifying leading and trailing waveform portions of the analog signal indicative of the start and stop patterns, for matching the identified leading and trailing waveform portions of the analog signal against known analog waveforms of the start and stop patterns of the target symbol, and for verifying that a match has occurred when the matching between the leading and trailing waveform portions and the known analog waveforms exceeds a known threshold correlation.