Method of reading a bar code on a moving cylindrical body

Details Method of reading a bar code on a moving cylindrical body Method of reading a bar code on a moving cylindrical body

1988-12-21

1990-10-16

Levy, Stuart S.

Registers

Coded record sensors

Particular sensor structure

235464, 235470, G06K 710, G06K 918

Patent

active

049637185

ABSTRACT:
A method of reading a bar code printed on a photographic film cartridge in which the bar code has a certain arc length on the cartridge. The cartridge is transported on a conveyor and positioned on the conveyer so that the normal line intersecting at the middle point of the arc length forms an acute angle to the transporting direction of the conveyer. The bar code is irradiated with a light beam of a bar code reader while the cartridge is transported on a conveyer, and the irradiating angle with the transporting direction is determined smaller than the acute angle of the normal line intersecting the bar code.

REFERENCES:
patent: 4193540 (1980-03-01), Dougados et al.
patent: 4201338 (1980-05-01), Keller
patent: 4713536 (1987-12-01), Williams et al.
patent: 4809342 (1989-02-01), Kappner
patent: 4888613 (1989-12-01), Zangenfeind et al.

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