05621203 is referenced by 272 patents and cites 74 patents.

A plurality of the areas of different light reflectivity of a bar code symbol, or the like, are simultaneously illuminated, using, e.g., a beam of laser light that has an elongated cross-section. The laser light beam is swept over the symbol in a direction transverse to the elongated dimension of the illuminated region so that a two-dimensional area of the symbol is illuminated over time, until the symbol is read. The light that reflects from the illuminated region of the symbol is imaged on a linear sensor array, which is then scanned or read out to produce signals representative of spatial intensity variations of the imaged light along a linear path in the field of view.

Title
Method and apparatus for reading two-dimensional bar code symbols with an elongated laser line
Application Number
66966
Publication Number
5621203
Application Date
June 30, 1994
Publication Date
April 15, 1997
Inventor
Glenn Spitz
Northport
NY, US
Paul Dvorkis
Stony Brook
NY, US
Yajun Li
Oakdale
NY, US
Jerome Swartz
Old Field
NY, US
Agent
Fish & Richardson P C
Assignee
Symbol Technologies
NY, US
IPC
G06K 7/10
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