Method of imaging a coding pattern with data elements...

Details Method of imaging a coding pattern with data elements... Method of imaging a coding pattern with data elements...

2011-03-29

2011-03-29

Le, Thien M. (Department: 2887)

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Particular code pattern

C235S454000, C235S487000

Reexamination Certificate

active

07913923

ABSTRACT:
A method of imaging a coding pattern disposed on a surface of a substrate. The method includes the steps of: (a) capturing an image of a portion of the coding pattern; and (b) low-pass filtering the captured image so as to obscure data elements in the image and preserve target elements in the image. The data elements encode data values by pulse position modulation, which facilitates the low-pass filtering.

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