Method and apparatus for decoding unresolved symbol profiles pro

Registers – Coded record sensors – Particular sensor structure

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235454, 23546219, 23546225, 23546227, G06K 710

Patent

active

061645427

ABSTRACT:
A method and apparatus for decoding profiles which may fail to resolve narrow elements in machine-readable symbols first begins by generating a reduced information set using a high speed circuit having contrast amplitude values and segment distance values produced from a profile from the symbol. Second, closure boundaries are determined. Third, the distances between the centers of the resolved elements are determined. Thereafter, a unit distance or X-dimension is determined for 1-wide narrow elements unresolved in the profile. Based on the unit distance, a matrix is constructed for determining the number of narrow elements unresolved between two resolved elements. Based on the measured center distances and the matrix, all of the unresolved narrow elements are identified in the profile and the profile is subsequently decoded.

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patent: 5798513 (1998-08-01), Ackley

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