摘要:
A hand-supportable digital imaging-based bar code symbol reader employing an event-driven system control subsystem, automatic IR-based object detection, and a trigger-switch activated image capture and processing subsystem.
摘要:
A hand-supportable digital imaging-based bar code symbol reading system comprises: an automatic object presence and range detection subsystem; an image formation and detection subsystem; a multi-mode LED-based illumination subsystem having an LED illumination array; an automatic light exposure measurement and illumination control subsystem; an image capturing and buffering subsystem; a multi-mode image-processing bar code symbol reading subsystem having a first mode and a second mode of operation; an input/output subsystem; and a system control subsystem for controlling the subsystems. The multi-mode image-processing bar code symbol reading subsystem automatically switches its modes of image-processing during a single bar code symbol reading cycle, and within each mode of image-processing based bar code symbol reading a different image-processing based bar code symbol reading methodology is automatically applied.
摘要:
A hand-supportable digital imaging-based bar code symbol reader comprises: an automatic object presence detection subsystem; an image formation and detection subsystem; a LED-based illumination subsystem having a wide area illumination mode of operation; an automatic light exposure measurement and illumination control subsystem; an image capturing and buffering subsystem; an image-processing bar code symbol reading subsystem; an input/output subsystem; and a system control subsystem for controlling each of the above-described subsystems. The image-processing bar code symbol reading subsystem performs helically-sweeping feature-extraction analysis on a captured digital image of an object referenced from the center thereof, so as to enable the rapid reading of a bar code symbol graphically represented therein, using advanced image-processing based bar code reading techniques.
摘要:
A digital imaging-based bar code symbol reading system which comprises: an automatic object presence and range detection subsystem; an image formation and detection subsystem having an area-type image sensing array with a field of view (FOV); a multi-mode LED-based illumination subsystem having LED illumination arrays for producing fields of narrow-band illumination in near and far portions of the FOV; an automatic light exposure measurement and illumination control subsystem; an image capturing and buffering subsystem; an image-processing bar code symbol reading subsystem; an input/output subsystem; and a system control subsystem for controlling the subsystems. The LED illumination arrays are automatically driven by the automatic light exposure measurement and illumination control subsystem in response to the generation of control activation signals by the automatic object presence and range detection subsystem.
摘要:
A hand-supportable Digital Imaging-Based Bar Code Symbol Reading Device comprises: an IR-based Object Presence and Range Detection Subsystem; a Multi-Mode Area-type Image Formation and Detection Subsystem having narrow-area and wide area image capture modes of operation; a Multi-Mode LED-based Illumination Subsystem having narrow-area and wide area illumination modes of operation; an Automatic Light Exposure Measurement and Illumination Control Subsystem; an Image Capturing and Buffering Subsystem; a Multi-Mode Image-Processing Bar Code Symbol Reading Subsystem; an Input/Output Subsystem; a manually-activatable trigger switch; a System Mode Configuration Parameter Table; and a System Control Subsystem integrated with each of the above-described subsystems. The bar code reading device can be configured and operated in numerous programmable modes of system operation to automatically read 1D and 2D bar code symbologies in a high-speed manner using advanced modes of image processing on captured images.
摘要:
A hand-supportable digital imaging-based bar code symbol reading device comprises: an automatic object presence and range detection subsystem; an area-type image formation and detection subsystem; a LED-based illumination subsystem having narrow-area and wide area illumination modes of operation; an automatic light exposure measurement and illumination control subsystem; an image capturing and buffering subsystem; a image-processing bar code symbol reading subsystem; an input/output subsystem; and a system control subsystem for controlling each of the above-described subsystems. A narrow-band transmission-type optical filter subsystem is integrated within the hand-supportable, so that only light transmitted from the LED-based illumination subsystem and reflected from the illuminated object is transmitted through the narrow-band transmission-type optical filter subsystem and detected by the CMOS area-type image sensing array, while all other components of ambient light are substantially rejected.
摘要:
A hand-supportable Digital Imaging-Based Bar Code Symbol Reading Device comprises: an IR-based Object Presence and Range Detection Subsystem; a Multi-Mode Area-type Image Formation and Detection Subsystem having narrow-area and wide area image capture modes of operation; a Multi-Mode LED-based Illumination Subsystem having narrow-area and wide area illumination modes of operation; an Automatic Light Exposure Measurement and Illumination Control Subsystem; an Image Capturing and Buffering Subsystem; a Multi-Mode Image-Processing Bar code symbol reading subsystem; an input/output subsystem; a manually-activatable trigger switch; and a system control subsystem integrated with each of the above-described subsystems. The hand-supportable digital imaging-based bar code reading device employs automatic object presence and range detection to control the generation of near-field and far-field wide-area illumination during bar code symbol imaging operations.
摘要:
A digital imaging-based bar code symbol reading device comprises: an automatic object presence detection subsystem; an image formation and detection subsystem employing a CMOS area-type image sensing array; an LED-based illumination subsystem; an automatic light exposure measurement and illumination control subsystem; an image capturing and buffering subsystem; an image-processing bar code symbol reading subsystem; an input/output subsystem; and a system control subsystem for controlling the subsystems. The LED-based illumination subsystem is automatically driven by the automatic light exposure measurement and control subsystem responsive to the generation of control activation signals by the image sensing array and the automatic object presence detection subsystem during object illumination and image capture operations.
摘要:
Digital-imaging based code symbol reading system employing an event-driven multi-tier modular software architecture and supporting automatic operating system login and loading of a bar code symbol reading application.
摘要:
A digital-imaging based code symbol reading system having a hands-on mode operation and a hands-free presentation mode of operation, and supporting automatic programming of system parameters for automatic configuration of the system in hands-on and hands-free modes of operation. The system comprises: an image formation and detection subsystem; an illumination subsystem; a digital image processing subsystem; a system control subsystem for managing system parameters, and controlling and/or coordinating operations of the system; and a configuration detection mechanism. The image formation and detection subsystem has the area-type image sensing array for detecting digital images of objects formed thereon by image formation optics providing a field of view (FOV) for the system. Within the FOV of the image formation and detection subsystem, the illumination subsystem produces a field of illumination that illuminates the object during the image capture mode of operation, and one or more digital images thereof are detected by an area-type image sensing array. When the hand-supportable housing is picked up from on a countertop surface or support stand and held in an operator's hand, the system parameters are automatically programmed so that the digital-imaging code symbol reading system is automatically configured into its hands-on mode of operation. When the hand-supportable is resting on the countertop surface or in the support stand, the system parameters are automatically programmed so that the digital-imaging code symbol reading system is automatically configured into its hands-free presentation mode of operation.