Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7681799 | 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 | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +3 more | 2010-03-23 |
| 7637433 | Digital image capture and processing system employing a micro-computing platform with an event-driven multi-tier modular software architecture and supporting an image-processing based illumination metering program for automatically adjusting illumination during object illumination and imaging operations | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +3 more | 2009-12-29 |
| 7624926 | Method of automatically reading code symbols on objects present within the field of view (FOV) of a hand-supportable digital-imaging based code symbol reader, by simultaneously projecting an image cropping zone (ICZ) framing pattern and a field of illumination within the FOV during object illumination and imaging operations | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +3 more | 2009-12-01 |
| 7611064 | Digital image capture and processing system having automatic illumination measurement and control capabilities realized using a photodetector operating independently of the image sensing array, and an image-processing based illumination metering program for automatically adjusting the illumination duration of the system during object illumination and imaging operations | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +3 more | 2009-11-03 |
| 7604175 | Method of reading bar code symbols using a 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 bar code symbol reading application | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2009-10-20 |
| 7568625 | Hand-supportable digital image-processing based bar code symbol reading system employing image cropping zone (ICZ) framing and post-image capture cropping | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2009-08-04 |
| 7527206 | Method of setting the time duration of illumination from an LED-based illumination array employed in a digital imaging-based code symbol reader, using an image-processing based illumination metering program executed therewithin | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +3 more | 2009-05-05 |
| 7513430 | Digital image capturing and processing system employing an area-type image sensing array exposed to narrow-band illumination from a narrow-band illumination subsystem for a time duration controlled using a photodetector operated independently from said area-type image sensing array | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2009-04-07 |
| 7510122 | Portable digital image capturing and processing system employing an area-type image sensing array exposed to illumination produced from an LED-based illumination array and measured using a photodector operated independently from said area-type image sensing array | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +3 more | 2009-03-31 |
| 7503499 | Digital image capturing and processing system producing narrow-band illumination when image sensor elements in a state of integration, and simultaneously detecting narrow-band illumination using an area-type image sensor and independently-operated photo-detector | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +3 more | 2009-03-17 |
| 7503498 | Hand-supportable digital image capturing and processing system employing an area-type image sensing array exposed to illumination from an LED-based illumination array only when all sensor elements in said image-sensing array are activated and in a state of integration | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +3 more | 2009-03-17 |
| 7490774 | Hand-supportable imaging based bar code symbol reader employing automatic light exposure measurement and illumination control subsystem integrated therein | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2009-02-17 |
| 7490778 | Method of reading code symbols using a hand-supportable digital image capturing and processing device employing a micro-computing platform supporting an event-driven multi-tier modular software architecture | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2009-02-17 |
| 7469835 | 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 code symbol reading application | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2008-12-30 |
| 7428998 | Automatic hand-supportable image-based bar code symbol reader having image-processing based bar code reading subsystem employing simple decode image processing operations applied in an outwardly-directed manner referenced from the center of a captured narrow-area digital image of an object bearing a 1D bar code symbol | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2008-09-30 |
| 7360706 | Hand-supportable imaging-based auto-discriminating 1D/2D bar code symbol reader employing a multi-mode image processing bar code symbol reading subsystem having a plurality of modes of operation which are dynamically reconfigurable in response to real-time image analysis | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2008-04-22 |
| 7357325 | Hand-supportable imaging-based bar code symbol reader employing a CMOS-type image sensor using global exposure techniques | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2008-04-15 |
| 7347374 | Hand-supportable digital imaging-based bar code symbol reader employing an event-driven system control subsystem, automatic IR-based object detection, and trigger-switch activated image capture and processing subsystem | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2008-03-25 |
| 7325738 | Method of and system for determining the lower limit of decoding resolution in an imaging-based bar code symbol reader | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2008-02-05 |
| 7320431 | Digital imaging-based bar code symbol reading system employing a multi-mode illumination subsystem with far-field and near field led-based illumination arrays | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2008-01-22 |
| 7299986 | Digital imaging-based bar code symbol driven portable data terminal system | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2007-11-27 |
| 7293714 | Hand-supportable digital imaging-based bar code symbol reading system automatically processing captured images along parallel virtual scan lines based on the maximum pixel height of the region of interest (ROI) | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2007-11-13 |
| 7284705 | Hand-supportable semi-automatic digital imaging-based bar code symbol reading system realized upon a multi-tier modular software platform | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2007-10-23 |
| 7281661 | Hand-supportable digital imaging-based bar code symbol reading system employing a method of intelligently illuminating an object so as to generate a digital image thereof which is substantially free of noise caused by specular-type reflection | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2007-10-16 |
| 7278575 | Hand-supportable image-based bar code symbol reader employing helically-sweeping feature-extraction analysis on a captured digital image of an object referenced from the center thereof | Xiaoxun Zhu, Yong Liu, Ka Man Au, Rui Hou, Xi Tao +12 more | 2007-10-09 |