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Proceedings Paper

Analysis of barcode digitization techniques
Author(s): John A. Boles; Randall K. Hems
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Paper Abstract

Laser bar code scanners produce analog time varying signals which must be converted to logic level signals that can be decoded by a microprocessor. Proper decoding of the symbol is highly dependent on the circuit which converts the analog signal to a logic signal. The performance of a conversion circuit is partially determined by features of the detector signal due to the laser source the bar code symbol and ambient light. Characteristics which influence the selection of a digitizing circuit are presented.

Paper Details

Date Published: 1 February 1991
PDF: 10 pages
Proc. SPIE 1384, High-Speed Inspection Architectures, Barcoding, and Character Recognition, (1 February 1991); doi: 10.1117/12.25323
Show Author Affiliations
John A. Boles, Photographic Sciences Corp. (United States)
Randall K. Hems, Photographic Sciences Corp. (United States)

Published in SPIE Proceedings Vol. 1384:
High-Speed Inspection Architectures, Barcoding, and Character Recognition
Michael J. W. Chen, Editor(s)

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