Method of reducing noise in an optically read image using an...

Details Method of reducing noise in an optically read image using an... Method of reducing noise in an optically read image using an...

2011-08-30

2011-08-30

St.Cyr, Daniel (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S462070, C235S462450

Reexamination Certificate

active

08006905

ABSTRACT:
A system and method of reading an indicia and rejecting ambient light is disclosed. An imaging signal and an ambient signal are received by the system where the imaging signal corresponds to indicia information and a first portion of the ambient light, and the ambient signal corresponds to a second portion of the ambient light. The imaging signal and the ambient signal are mathematically manipulated to subtract the contribution of the first portion of the ambient light from the imaging signal.

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