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Portable bar code reader having improved autodiscriminating features

  • US 20040256465A1
  • Filed: 07/08/2004
  • Published: 12/23/2004
  • Est. Priority Date: 03/04/1994
  • Status: Active Grant
First Claim
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1. A method for reading a reflective indicia utilizing a portable hand-held indicia reader including a one-dimensional image sensor, said method comprising:

  • illuminating said reflective indicia with a light source having a frequency in a specified frequency range, said reflective indicia including a plurality of rows, each row including a row address pattern and at least one of a data codeword and an error detection codeword;

    sweeping said hand-held indicia reader manually and asynchronously over said reflective indicia;

    capturing an electronic representation of said reflective indicia by processing lighted reflected from said reflective indicia; and

    analyzing said electronic representation of said reflective indicia to determine whether said reflective indicia is a one dimensional bar code symbol, said analyzing further including executing an automatic discrimination algorithm if said reflective indicia is a one dimensional bar code symbol.

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