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1 February 1991 Analysis of barcode digitization techniques
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Proceedings Volume 1384, High-Speed Inspection Architectures, Barcoding, and Character Recognition; (1991)
Event: Advances in Intelligent Robotics Systems, 1990, Boston, MA, United States
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.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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);


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