发明名称 Method and apparatus for decoding unresolved bar code profiles using edge finding circuitry
摘要 A method and apparatus for decoding profiles which fail to resolve narrow elements in symbologies employing one element type having only a single width, first begins by producing a series of counts from the symbol using standard waveshaping and counting circuitry. Second, an X-dimension for the 1-wide elements is determined based on the first few counts corresponding to bars after the counts corresponding to the quiet zone. The Start and Stop characters are located and the method determines whether the symbol is in focus. If the symbol is out-of-focus, then groups of an odd number of 1-wide elements are converted to large counts that correspond to pseudo elements (e.g., wide bars in a symbology containing only 1-wide narrow bars). The method groups counts into individual characters, and divides all pseudo elements into individual 1-wide elements. The method thereafter decodes the symbol.
申请公布号 US5539191(A) 申请公布日期 1996.07.23
申请号 US19950493669 申请日期 1995.06.22
申请人 INTERMEC CORPORATION 发明人 ACKLEY, H. SPRAGUE
分类号 G06K7/00;G06K7/10;G06K7/14;(IPC1-7):G06K7/10 主分类号 G06K7/00
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