Patent ID: 7270272
Filing Date: 2007-09-18
Classification: G06K

Abstract:
1. A digital imaging-based bar code symbol reading system comprising: an image formation and detection subsystem having image formation optics for producing a field of view (FOV) upon an object to be imaged and an area-type image sensing array for detecting imaged light reflected off the object during illumination operations in an image capture mode in which substantially all rows of said area-type image sensing array are enabled; an LED-based illumination subsystem having an LED illumination array for producing a field of narrow-band illumination within said FOV during said image capture mode; an image capturing and buffering subsystem for capturing and buffering a digital image detected by said image formation and detection subsystem; a multi-mode image-processing based bar code symbol reading subsystem having a first mode and a second mode for processing said digital image, wherein during each bar code symbol reading cycle, said multi-mode image-processing based bar code symbol reading subsystem a system control subsystem for controlling and/or coordinating said subsystems; and a housing for containing said subsystems, and having a light transmission panel with an imaging window through which said FOV extends, said narrow-band illumination is projected, and narrow-band illumination reflected and/or scattered off said object is re-transmitted towards said area-type image sensing array.