Hand-held dataform reader having multiple target area illumination sources for independent reading of superimposed dataforms
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United States of America Patent
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Dec 30, 2003
Grant Date -
N/A
app pub date -
Dec 19, 1997
filing date -
Dec 19, 1997
priority date (Note) -
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Abstract
A portable data collection device having a modular imaging-based dataform reader. The dataform reader is adapted to independently read first and second overlying dataforms, the first dataform is imaged and decoded when illuminated by radiation having a first wavelength and the second dataform is imaged and decoded when illuminated by radiation having a second wavelength. Control and selection circuitry is electrically coupled to an imaging assembly and an illumination assembly to actuate the imaging assembly and selectively energize a first illumination source which generates radiation having a first range of wavelengths to image and decode the first dataform while a second illumination source is deenergized and to actuate the imaging assembly and selectively energize the second illumination source which generates radiation having a second range of wavelengths to image and decode the second dataform while the first illumination source is deenergized.
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