Electro-optical scanner having selectable scan pattern

Details Electro-optical scanner having selectable scan pattern Electro-optical scanner having selectable scan pattern

1998-01-20

1999-11-23

Hajec, Donald

Registers

Coded record sensors

Particular sensor structure

23546222, 359204, G06K 710

Patent

active

059885025

ABSTRACT:
A wavelength selector in an optical scanner is operative for selecting a first laser beam having a predetermined wavelength to produce a first scan pattern, and for selecting a second laser beam having a different wavelength to produce a second scan pattern. The scan patterns have a different number of scan lines. The selected scan pattern is scanned over indicia, e.g., a bar code symbol, to be read.

REFERENCES:
patent: 5235167 (1993-08-01), Dvorkis et al.
patent: 5420411 (1995-05-01), Salatto Jr. et al.
patent: 5600119 (1997-02-01), Dvorkis et al.
patent: 5609223 (1997-03-01), Iizaka et al.
patent: 5736721 (1998-04-01), Swartz
patent: 5756982 (1998-05-01), Knowles et al.
patent: 5804805 (1998-09-01), Koenck et al.
patent: 5859417 (1999-01-01), Dvorkis et al.

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