Bar code reader with error detection and decode control

Details Bar code reader with error detection and decode control Bar code reader with error detection and decode control

1992-02-20

1994-08-09

Willis, Davis L.

Registers

Coded record sensors

Particular sensor structure

235462, G06K 710

Patent

active

053368746

ABSTRACT:
A bar code reader includes a line sensor having a scanning range large enough to scan two or more bar codes. A portion of the scanning range having a size corresponding to a single bar code is determined as a reading range. A reading range comparator 35 determines when a bar code is positioned within the reading range, so that no other bar code within the scanning range will be read. The reader also has error detection to determine whether counted numbers of bars fall within a permissible range for a given bar code symbology.

REFERENCES:
patent: 4538060 (1985-08-01), Sakai et al.
patent: 4855581 (1989-08-01), Mertel et al.
patent: 4859840 (1989-08-01), Hasegawa et al.

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