Analysis of barcode digitization techniques

John A. Boles; Randall K. Hems

doi:10.1117/12.25323

1 February 1991 Analysis of barcode digitization techniques

John A. Boles, Randall K. Hems

Proceedings Volume 1384, High-Speed Inspection Architectures, Barcoding, and Character Recognition; (1991) https://doi.org/10.1117/12.25323
Event: Advances in Intelligent Robotics Systems, 1990, Boston, MA, United States

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.

Citation Download Citation

John A. Boles and Randall K. Hems "Analysis of barcode digitization techniques", Proc. SPIE 1384, High-Speed Inspection Architectures, Barcoding, and Character Recognition, (1 February 1991); https://doi.org/10.1117/12.25323

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