Bar code reader

Details Bar code reader Bar code reader

1984-09-12

1987-02-24

Trafton, David L.

Registers

Coded record sensors

Particular sensor structure

235472, 250568, 372 6, 372 43, G06K 710

Patent

active

046459154

ABSTRACT:
A bar code reader comprises a semiconductor laser diode. A first end face of the laser diode is optically coupled to an end of an optical fiber. A second end face of the laser diode is optically coupled to a detector. The bar code is scanned at the free end of the optical fiber. This information is read by the semiconductor laser diode by way of optical feedback.

REFERENCES:
patent: 3355674 (1967-11-01), Hardy
patent: 3761837 (1973-09-01), Leheny et al.
patent: 4286142 (1981-08-01), Palmer
patent: 4467196 (1984-08-01), Balliet et al.

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