Registers – Coded record sensors – Particular sensor structure
Patent
1998-01-14
2000-08-15
Lee, Michael G
Registers
Coded record sensors
Particular sensor structure
23546216, 23546215, G06K 710
Patent
active
061022950
ABSTRACT:
A method and apparatus for reading optical symbols is disclosed, which employs defined erasure zones for grading symbols, and for permitting soft decisions to be made with respect to further processing of the symbols. The erasure zones are defined between nominal values within the range of nominal values for the measurable characteristics of the symbol elements which comprise the symbol. The measured actual values of the measurable characteristic are compared to the erasure zones. The number of symbol elements having measured actual values within any one of the erasure zones is used to determine the appropriate steps for further processing of the optical symbol. Measurable characteristics can include dimensions such as width, length, area, volume, as well as other optical characteristics such as color or hue, and shade or depth.
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Cyr Daniel St.
Intermec IP Corp.
Lee Michael G
LandOfFree
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