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Method and apparatus for distinguishing a preferred bar code or the like

  • US 5,262,623 A
  • Filed: 09/04/1991
  • Issued: 11/16/1993
  • Est. Priority Date: 09/04/1991
  • Status: Expired due to Term
First Claim
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1. In a reading system for reading a machine readable symbol, said system having a reader, said reader having a field of view, a method for distinguishing one machine readable symbol from a plurality of machine readable symbols within said field of view of said reader, said method comprising:

  • placing a predetermined pattern proximate to at least one of said plurality of machine readable symbols;

    first locating one of said machine readable symbols;

    then subsequently detecting said predetermined pattern proximate to said located machine readable symbol; and

    selecting said located machine readable symbol for decoding if said predetermined pattern is detected proximate to said located machine readable symbol.

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