Invention Grant
- Patent Title: Hand-supportable semi-automatic digital imaging-based bar code symbol reading system realized upon a multi-tier modular software platform
- Patent Title (中): 基于多层模块化软件平台实现的手持式半自动数字成像条形码符号读取系统
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Application No.: US10909270Application Date: 2004-07-30
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Publication No.: US07284705B2Publication Date: 2007-10-23
- Inventor: Xiaoxun Zhu , Yong Liu , Ka Man Au , Rui Hou , Hongpeng Yu , Xi Tao , Liang Liu , Wenhua Zhang , Anatoly Kotlarsky , Sankar Ghosh , Michael Schnee , Pasqual Spatafore , Thomas Amundsen , Sung Byun , Mark Schmidt , Garrett Russell , John Bonanno , C. Harry Knowles
- Applicant: Xiaoxun Zhu , Yong Liu , Ka Man Au , Rui Hou , Hongpeng Yu , Xi Tao , Liang Liu , Wenhua Zhang , Anatoly Kotlarsky , Sankar Ghosh , Michael Schnee , Pasqual Spatafore , Thomas Amundsen , Sung Byun , Mark Schmidt , Garrett Russell , John Bonanno , C. Harry Knowles
- Applicant Address: US NJ Blackwood
- Assignee: Metrologic Instruments, Inc.
- Current Assignee: Metrologic Instruments, Inc.
- Current Assignee Address: US NJ Blackwood
- Agency: Thomas J. Perkoski, Esq., P.C.
- Main IPC: G06K7/10
- IPC: G06K7/10

Abstract:
A hand-supportable semi-automatic digital imaging-based bar code symbol reading system comprises: an automatic object presence detection subsystem; a multi-mode 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-actuatable trigger switch; and a system control subsystem for controlling the subsystems. The digital imaging-based bar code reading system employs a three-tier modular software architecture for carrying out its image-processing based bar code symbol reading operations. The three-tier software architecture comprises an application layer, a system core layer, and an operating system (OS) layer.
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