0385478-A2 is referenced by 59 patents and cites 2 patents.

In a bar code reader, a field of view which includes a symbol to be read is imaged upon a light-responsive array such as a CCD imager device (12). The output of this array is transferred to a memory (20) array to provide a bit-mapped type of binary representation of the image including the symbol. The memory is scanned (instead of the field of view itself being mechanically scanned) to recognize and decode the symbol. Because the angular orientation of the symbol is variable, this binary representation may be interpreted to determine how the memory array is to be scanned to recognize the bar code symbol.; For example, the distinctive patterns of characters used in bar codes may be found by scanning the memory and the relative positions of these patterns interpreted to determine the position, size and shape of the symbol in the memory (20), thereby defining at what angular displacement the memory array need be addressed to traverse the rows of the bar code symbol. Or, the memory array may be simply scanned using preselected scan lines (beginning with a raster-type scan) until code recognition is obtained.

Title
Bar code reader.
Application Number
EP19900104029 19900301
Publication Number
0385478 (A2)
Application Date
March 1, 1990
Publication Date
September 5, 1990
Inventor
Krichever Mark J
US
Metlitsky Boris
US
Assignee
Symbol Technologies
US
IPC
G06K 07/10
G06K 19/06
G06K 07/14
G06K 07/10
G06K 19/06
G06K 07/14
G06K 07/10
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