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Proceedings Paper

A laser based high performance universal product code reader
Author(s): Charles C. K. Cheng
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Paper Abstract

At present, more than 99% of the packages in the grocery stores have been marked by the manufacturer with laser scannable UPC symbols and the installation of laser based optical readers is expected to expand into all stores. This paper describes a laser based reader that was designed and engineered for reliable,high speed and safety uses in an ordinary store environment.Areas to be discussed are:laser/optics scan pattern generation,signal processor,characteristics and encodation of the UPC and the laser safety program.

Paper Details

Date Published: 1 July 1990
PDF: 6 pages
Proc. SPIE 1230, International Conference on Optoelectronic Science and Engineering '90, 12301D (1 July 1990); doi: 10.1117/12.2294686
Show Author Affiliations
Charles C. K. Cheng, NCR Corp. (United States)


Published in SPIE Proceedings Vol. 1230:
International Conference on Optoelectronic Science and Engineering '90
DaHeng Wang, Editor(s)

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