Optical data reading device

Details Optical data reading device Optical data reading device

1994-11-29

1997-02-04

Hajec, Donald T.

Registers

Coded record sensors

Particular sensor structure

235454, G06K 710

Patent

active

056001169

ABSTRACT:
An optical data reading device has a main housing and an optical system housing connected to the main housing. A light source and an imaging optical system are housed in the optical system housing. An image sensor, an image signal processing unit and a light source control unit are housed in the main housing. The light source illuminates a bar code, and the imaging optical system passes light reflected from the bar code into the main housing. The image sensor outputs a signal in accordance with the light passed by the imaging optical system. The image signal processing unit performs a predetermined process on the signal. The light source control unit controls the amount of light generated by the light source in accordance with a processing result obtained by the image signal processing unit.

REFERENCES:
patent: 2912495 (1959-11-01), Moon et al.
patent: 4734566 (1988-03-01), Senda et al.
patent: 4818847 (1989-04-01), Hara et al.
patent: 4855814 (1989-08-01), Shiraishi et al.
patent: 5019699 (1991-05-01), Koenck
patent: 5047625 (1991-09-01), Iima et al.
patent: 5260554 (1993-11-01), Grodevant
patent: 5280162 (1994-01-01), Marwin

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