Method for reading a symbol having encoded information

Details Method for reading a symbol having encoded information Method for reading a symbol having encoded information

2007-01-09

2007-01-09

Le, Thien M. (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S462010, C235S494000

Reexamination Certificate

active

10404504

ABSTRACT:
Methods and apparatuses are provided for imaging and decoding symbols such as two-dimensional relief formed symbols and in particular, symbols wherein one or more edges of any number of data cells within the symbols are at least partially discernable. In one aspect of the present invention a symbol image based on a relief pattern, which represents encoded information and includes at least one discernable edge can be determined. Generally, determining an edge of the relief pattern and validating the determined edge by performing an edge analysis of the determined edge can determine the symbol image. A data cell of the symbol image, which at least partially represents information encoded in the relief pattern, can be determined so that the symbol image can be decoded to provide the information encoded within the relief pattern.

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