digital image capturing and processing system allowing third-parties to extend the features and functions of said system, and modify the standard behavior thereof without permanently modifying the standard features and functions thereof

• US 7,861,936 B2
• Filed: 10/31/2007
• Issued: 01/04/2011
• Est. Priority Date: 11/13/2003
• Status: Active Grant

• Current Assignee: Metrologic Instruments Incorporated (Honeywell International Inc.)
• Original Assignee: Metrologic Instruments Incorporated (Honeywell International Inc.)
• Inventors: Kotlarsky, Anatoly, Zhu, Xiaoxun
• Primary Examiner(s): Kim; Ahshik
• Application Number:
  US11/981,613
• Publication Number:
  US 20080164313A1
• Time in Patent Office: 1,161 Days
• Field of Search: 235/462.24, 235/462.15, 235/462.25, 235/462.42, 235/462.22
• US Class Current: 235/462.24
• 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 7/10722 Photodetector array or CCD scanning
• CPC Class Codes: G06K 7/10732 Light sources
• CPC Class Codes: G06K 7/10821 further details of bar or optical code scanning devices
• 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
• CPC Class Codes: G06K 7/1413 1D bar codes
• CPC Class Codes: G06K 7/1417 2D bar codes
• CPC Class Codes: G06K 7/1426 Multi-level bar codes
• CPC Class Codes: G06K 7/1443 locating of the code in an image

Abstract

A digital image capture and processing system having a set of standard features and functions, and a set of custom features and functionalities said external host computer system, which can be extended by third parties to modify the standard behavior of the digital image capture and processing system into a custom behavior for the system, without permanently modifying the standard features and functions thereof.

Claims

1. A digital image capture and processing system having a set of standard features and functions, and a set of custom features and functions that satisfy customized end-user application requirements, said digital image capture and processing system comprising:

a digital camera subsystem for projecting a field of view (FOV) upon an object to be imaged in said FOV, and detecting imaged light reflected off the object during illumination operations in an image capture mode in which one or more digital images of the object are formed and detected by said digital camera subsystem;

a digital image processing subsystem for processing said one or more digital images and producing raw or processed data, or recognizing or acquiring information graphically represented in said one or more digital images, and producing output data representative of said recognized information;

an input/output subsystem for transmitting said output data to an external host system or other information receiving or responding device;

a system control subsystem for controlling and/or coordinating the operation of said subsystems above; and

a computing platform for supporting the implementation of one or more of said subsystems above, and the features and functions of said digital image capture and processing system;

said computing platform including (i) memory for storing pieces of original product code written by the original designers of said digital image capture and processing system, and (ii) a microprocessor for running one or more applications by calling and executing pieces of said original product code in a particular sequence, so as to support a set of standard features and functions which characterize a standard behavior of said digital image capture and processing system;

wherein said one or more pieces of original product code have a set of place holders into which pieces of third-party product code can be inserted or plugged by third parties, including value-added resellers (VARs), original equipment manufacturers (OEMs), and also end-users of said digital image capture and processing system;

wherein one or more pieces of third-party product code that have been plugged into said set of place holders, operate to extend the features and functions of said digital image capture and processing system, and modify the standard behavior of said digital image capture and processing system into a custom behavior for said digital image capture and processing system; and

wherein said external host computer system, operated by said third-party, is interfaced with said input/output subsystem so as to (i) load said one or more pieces of third-party product code into said memory, and (ii) plug said one or more pieces of third-party product code into said set of place holders, and extend the features and functions of said digital image capture and processing system, and modify the standard behavior of said digital image capture and processing system into said custom behavior for said digital image capture and processing system, without permanently modifying the standard features and functions of said digital image capture and processing system.

2. The digital image capture and processing system of claim 1, which further comprises a housing having a light transmission window, wherein said FOV is projected through said light transmission window and upon the object to be imaged in said FOV.

3. The digital image capture and processing system of claim 2, wherein said housing contains said subsystems.

4. The digital image capture and processing system of claim 3, wherein when said one or more pieces of third-party product code are plugged into said set of place holders, the features and functions of said digital image capture and processing system are modified and/or extended, and the standard behavior of said digital image capture and processing system is modified into a custom behavior for said digital image capture and processing system.

5. The digital image capture and processing system of claim 4, wherein said one or more pieces of original product code and said third-party product code are maintained in one or more libraries.

6. The digital image capture and processing system of claim 5, wherein said memory comprises a memory architecture having different kinds of memory, each having a different access speed and performance characteristics.

7. The digital image capture and processing system of claim 1, wherein an end-user, such as a value-added reseller (VAR) or original equipment manufacturer (OEM), can write said one or more pieces of third-party product code according to specifications set by said original system designers, and said one or more pieces of third party product code can be plugged into said set of place holders, so as to extend the features and functions of said digital image capture and processing system, and modify the standard behavior of said digital image capture and processing system into said custom behavior for said digital image capture and processing system, without permanently modifying the standard features and functions of said digital image capture and processing system.

8. The digital image capture and processing system of claim 1, which is integrated or embodied into a third-party product.

9. The digital image capture and processing system of claim 8, wherein said third-party product is selected from the group consisting of image-processing based bar code symbol reading systems, portable data terminals (PDTs), mobile phones, computer mice-type devices, personal computers, keyboards, consumer appliances, automobiles, ATMs, vending machines, reverse-vending machines, retail POS-based transaction systems, 1D or 2D digitizers, CAT scanning systems, automobile identification systems, package inspection systems, and personal identification systems.

10. The digital image capture and processing system of claim 1, which has the form factor of a digital imaging engine module that is integrated into a third party product selected from the group consisting of image-processing based bar code symbol reading systems, portable data terminals (PDTs), mobile phones, computer mice-type devices, personal computers, keyboards, consumer appliances, automobiles, ATMs, vending machines, reverse-vending machines, retail POS-based transaction systems, 1D or 2D digitizers, CAT scanning systems, automobile identification systems, package inspection systems, and personal identification systems.

11. The digital image capture and processing system of claim 10, which further comprises at least one printed circuit board that is installed within a third-party housing of said third-party product and interfaced with said digital imaging engine module, and at least one component within said third-party housing.

12. The digital image capture and processing system of claim 1, wherein said original product code and said third-party product code each comprises executable binary code.

13. The digital image capture and processing system of claim 1, wherein said digital camera subsystem comprises:

a digital image formation and detection subsystem having (i) image formation optics for projecting said FOV through a light transmission window and upon said object to be imaged in said FOV, and (ii) an image sensing array for detecting imaged light reflected off the object during illumination operations in an image capture mode in which sensor elements in said image sensing array are enabled so as to detect one or more digital images of the object formed on said image sensing array;

an illumination subsystem having an illumination array for producing and projecting a field of illumination through said light transmission window and within said FOV during the image capture mode; and

an image capturing and buffering subsystem for capturing and buffering said one or more digital images detected by said digital image formation and detection subsystem.

14. The digital image capture and processing system of claim 13, wherein said image sensing array comprises an image sensing structure selected from the group consisting of an area-type image sensing array, and a linear-type image sensing array.

15. The digital image capture and processing system of claim 1, wherein said memory maintains system parameters used to configure said functions of said digital image capture and processing system.

16. The digital image capture and processing system of claim 1, wherein said computing platform implements said digital image processing subsystem, said input/output subsystem and said system control subsystem.

17. The digital image capture and processing system of claim 1, wherein said memory comprises a memory architecture that supports a three-tier modular software architecture characterized by an Operating System (OS) layer, a System CORE (SCORE) layer, and an Application layer, and which is responsive to the generation of a triggering event within said digital image capture and processing system.

18. The digital image capture and processing system of claim 17, wherein said OS layer includes one or more software modules selected from the group consisting of an OS kernal module, an OS file system module, and device driver modules;

wherein said SCORE layer includes one or more of software modules selected from the group consisting of a tasks manager module, an events dispatcher module, an input/output manager module, a user commands manager module, the timer subsystem module, an input/output subsystem module and a memory control subsystem module;

wherein said Application layer includes one or more software modules selected from the group consisting of a code symbol decoding module, a function programming module, an application events manager module, a user commands table module, and a command handler module.

19. The digital image capture and processing system of claim 18, wherein, prior to capturing one or more digital images of the object, said microprocessor rapidly initializes said computing platform by performing the following operations:

(1) accessing one or more software modules from said OS layer and executing code contained therein;

(2) accessing one or more software modules from said SCORE layer and executing code contained therein; and

(3) accessing one or more software modules from said Application layer and executing code contained therein.

20. The digital image capture and processing system of claim 13, wherein said field of illumination comprises narrow-band illumination produced from an array of light emitting diodes (LEDs).

21. The digital image capture and processing system of claim 13, wherein said digital image processing subsystem processes said one or more digital images, so as to read one or more code symbols graphically represented in said one or more digital images, and producing output data in the form of symbol character data representative of said read one or more code symbols.

22. The digital image capture and processing system of claim 21, wherein each said code symbol is a bar code symbol selected from the group consisting of a 1D bar code symbol, a 2D bar code symbol, and a data matrix type code symbol structure.