METHOD AND APPARATUS FOR VARIABLE SPEED SCANNING OF BAR CODES

METHOD AND APPARATUS FOR VARIABLE SPEED SCANNING OF BAR CODES

2032136 9013875 PCTABS00002 Method and apparatus are provided for scanning an optically readable code such as a bar code (20) at a variable scanning velocity. Such variable velocity scanning has the effect of normalizing the density of code elements (21) to be scanned thereby eliminating the need fo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: FRONTINO, LOUIS J
Format: Patent
Sprache:eng ; fre
Schlagworte:
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Zusammenfassung:2032136 9013875 PCTABS00002 Method and apparatus are provided for scanning an optically readable code such as a bar code (20) at a variable scanning velocity. Such variable velocity scanning has the effect of normalizing the density of code elements (21) to be scanned thereby eliminating the need for the scanner operator during the course of bar code (20) decoding to vary the distance between the scanner (10) and the optical code (20) for a predetermined range of code elements (21) densities.