BAR CODE READ SCANNER

PURPOSE:To surely read a bar code label regardless of its uneven print or dirt. CONSTITUTION:In the bar code read scanner which irradiates the bar code label with the light beam from a laser diode 5 by an optical system and photoelectrically converts the reflected light by a photo diode 6 to obtain...

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Bibliographic Details
Main Author KONNO RYOICHI
Format Patent
LanguageEnglish
Published 28.01.1994
Edition5
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:PURPOSE:To surely read a bar code label regardless of its uneven print or dirt. CONSTITUTION:In the bar code read scanner which irradiates the bar code label with the light beam from a laser diode 5 by an optical system and photoelectrically converts the reflected light by a photo diode 6 to obtain a signal for decoding, the light beam is subscanned in the direction orthogonal to the main scanning direction of the laser diode 5 by a driving part 13 for subscanning, and light emission of the light source and a photodetector are controlled synchronously with the subscanning position by a control circuit 12.
Bibliography:Application Number: JP19920173203