Gain control system and method for use in electro-optical...

Registers – Coded record sensors – Particular sensor structure

Reexamination Certificate

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C235S462250

Reexamination Certificate

active

10832486

ABSTRACT:
An intelligent gain selection circuit replaces the gain set by an automatic gain control circuit in an electro-optical reader for reading indicia, such as bar code symbols, with a larger gain where specular reflections, high contrast edges, or other noise operative to produce dominant high voltage peaks in an analog signal generated by a sensor in the reader, are detected.

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