Method of reading code symbols using a digital image capturing and processing system employing a micro-computing platform with an event-driven multi-tier software architecture

• US 20080011858A1
• Filed: 06/25/2007
• Published: 01/17/2008
• Est. Priority Date: 11/13/2003
• Status: Active Grant

• Current Assignee: Anatoly Kotlarsky, Hongpeng Yu, Ka Au, Liang Liu, Rui Hou, Wenhua Zhang, Xiaoxun Zhu, Xi Tao, Yong Liu
• Original Assignee: Anatoly Kotlarsky, Hongpeng Yu, Ka Au, Liang Liu, Rui Hou, Wenhua Zhang, Xiaoxun Zhu, Xi Tao, Yong Liu
• Inventors: Zhu, Xiaoxun, Liu, Yong, Liu, Liang, Kotlarsky, Anatoly, Tao, Xi, Zhang, Wenhua, Hou, Rui, Yu, Hongpeng, Au, Ka
• Granted Patent: US 7,681,799 B2
• Time in Patent Office: Days
• US Class Current: 235/462.42
• CPC Class Codes: G06F 9/44526 Plug-ins; Add-ons
• CPC Class Codes: G06K 2207/1012 Special detection of object
• CPC Class Codes: G06K 7/10712 Fixed beam scanning
• CPC Class Codes: G06K 7/10732 Light sources
• CPC Class Codes: G06K 7/10831 Arrangement of optical elements, e.g. lenses, mirrors, prisms optical elements per se G02B
• CPC Class Codes: G06K 7/10851 Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device basic electronic circuitry H03
• CPC Class Codes: G06K 7/10881 constructional details of hand-held scanners
• CPC Class Codes: G06K 7/14 using light without selection of wavelength, e.g. sensing reflected white light G06K7/10831 - G06K7/1097 take precedence

Abstract

A method of reading code symbols using a digital image capture and processing system employing a micro-computing platform supporting an event-driven multi-tier software architecture. The system comprises: an image formation and detection subsystem; an illumination subsystem; an illumination control subsystem; a digital image processing subsystem; and an input/output subsystem; and a system control subsystem. In the illustrative embodiment, micro-computing platform implements the digital image processing subsystem, the input/output subsystem and the system control subsystem. The micro-computing platform includes a microprocessor, a memory architecture, and a multi-tier modular software architecture responsive to the generation of a triggering event within the system. Triggering events can be generated by an automatic object detector or a manually actuated trigger switch.

Claims

12-1. The method of claim 1, wherein said memory architecture comprises a first memory device for storing at least one code symbol reading application, and a second memory device for storing said one or more 2 digital images captured and buffered by said image capturing and buffering subsystem.