| Patent | Date |
|---|
Light source detection in field of view
Grant 11,238,281 - Cui , et al. February 1, 2 | 2022-02-01 |
Transparent element detection for vehicles
Grant 11,073,829 - Cui , et al. July 27, 2 | 2021-07-27 |
Drone marker and landing zone verification
Grant 10,922,984 - Boyd , et al. February 16, 2 | 2021-02-16 |
Camera calibration in a mobile environment
Grant 10,853,942 - Boyd , et al. December 1, 2 | 2020-12-01 |
Power supply monitoring system using strain gauges
Grant 10,809,309 - Cui , et al. October 20, 2 | 2020-10-20 |
Vehicle camera contamination detection
Grant 10,721,375 - Boyd , et al. | 2020-07-21 |
Distance detection based on chromatic aberration
Grant 10,573,024 - Cui , et al. Feb | 2020-02-25 |
Flare detection and avoidance in stereo vision systems
Grant 10,538,326 - Cui , et al. Ja | 2020-01-21 |
Image-based weather condition detection
Grant 10,497,129 - Cui , et al. De | 2019-12-03 |
Location marker with retroreflectors
Grant 10,482,775 - Boyd , et al. Nov | 2019-11-19 |
Power Supply Monitoring System Using Strain Gauges
App 20190331740 - Cui; Chengwu ; et al. | 2019-10-31 |
Power supply monitoring system using optical estimation
Grant 10,393,821 - Cui , et al. A | 2019-08-27 |
Obstacle awareness based guidance to clear landing space
Grant 10,388,172 - Boyd , et al. A | 2019-08-20 |
Detection of transparent elements using specular reflection
Grant 10,281,916 - Cui , et al. | 2019-05-07 |
Lens assembly
Grant 10,203,476 - Cui Feb | 2019-02-12 |
Drone marker and landing zone verification
Grant 10,198,955 - Boyd , et al. Fe | 2019-02-05 |
Detection of transparent elements using reflective disparities
Grant 10,196,141 - Cui , et al. Fe | 2019-02-05 |
Processing images to remove precipitation
Grant 10,182,225 - Cui , et al. Ja | 2019-01-15 |
Location marker with lights
Grant 10,176,722 - Boyd , et al. J | 2019-01-08 |
Techniques for target detection
Grant 10,176,378 - Boyd , et al. J | 2019-01-08 |
Drone location signature filters
Grant 10,121,117 - Boyd , et al. November 6, 2 | 2018-11-06 |
Power Supply Monitoring System Using Optical Estimation
App 20180284197 - Cui; Chengwu ; et al. | 2018-10-04 |
Obstacle awareness based guidance to clear landing space
Grant 10,049,589 - Boyd , et al. August 14, 2 | 2018-08-14 |
Location marker with retroreflectors
Grant 10,032,384 - Boyd , et al. July 24, 2 | 2018-07-24 |
Digital Camera Focus Assembly
App 20180041668 - Cui; Chengwu | 2018-02-08 |
Digital Camera Focus Self-calibration
App 20180041689 - Cui; Chengwu | 2018-02-08 |
Digital camera focus self-calibration
Grant 9,888,164 - Cui February 6, 2 | 2018-02-06 |
Infrared Illumination Through Background Lighting Source
App 20170332021 - Cui; Chengwu ; et al. | 2017-11-16 |
Sensing images and light sources via visible light filters
Grant 9,696,470 - Cui July 4, 2 | 2017-07-04 |
Lens Assembly
App 20160282584 - Cui; Chengwu | 2016-09-29 |
Sensing Images And Light Sources
App 20160259099 - CUI; Chengwu | 2016-09-08 |
Reduced height illumination assembly for a scanner
Grant 8,833,967 - Cui , et al. September 16, 2 | 2014-09-16 |
Optical system for a scanner including a light source for illuminating a target area and a plurality of mirrors positioned to receive a light beam
Grant 8,610,972 - Allen , et al. December 17, 2 | 2013-12-17 |
Illumination assembly for a scanner with thermally conductive heat sink
Grant 8,610,969 - Allen , et al. December 17, 2 | 2013-12-17 |
Reduced Height Illumination Assembly for a Scanner
App 20130271975 - Cui; Chengwu ; et al. | 2013-10-17 |
Illumination assembly for a scanner
Grant 8,485,675 - Allen , et al. July 16, 2 | 2013-07-16 |
Scanner and system employing composite illumination
Grant 8,432,584 - Cui April 30, 2 | 2013-04-30 |
Method for dissipating heat produced in scan head assembly of imaging apparatus
Grant 8,422,096 - Cui , et al. April 16, 2 | 2013-04-16 |
Raisable scan head for an imaging apparatus
Grant 8,405,889 - Cui , et al. March 26, 2 | 2013-03-26 |
Optical System for a Scanner
App 20130070317 - Allen; Eugene David ; et al. | 2013-03-21 |
Mounting bracket for image sensing unit of a scanner
Grant 8,400,688 - Allen , et al. March 19, 2 | 2013-03-19 |
Linear light diffusing structure for document scanners
Grant 8,322,872 - Cui , et al. December 4, 2 | 2012-12-04 |
Image scanning apparatus and methods
Grant 8,228,571 - Beegle , et al. July 24, 2 | 2012-07-24 |
Optical System for Scanners
App 20120162725 - Allen; Eugene David ; et al. | 2012-06-28 |
Illumination Assembly for a Scanner
App 20120162738 - Allen; Eugene David ; et al. | 2012-06-28 |
Illumination Assembly for a Scanner
App 20120162726 - Allen; Eugene David ; et al. | 2012-06-28 |
Mounting Bracket for Image Sensing Unit of a Scanner
App 20120162722 - Allen; Eugene David ; et al. | 2012-06-28 |
Apparatus and method for scanner skew adjustment in an image forming device
Grant 8,159,732 - Cui , et al. April 17, 2 | 2012-04-17 |
Detachable transparent plate for scan head assembly
Grant 8,089,663 - Cui , et al. January 3, 2 | 2012-01-03 |
Enhanced illuminated scanning unit reference marker
Grant 8,081,353 - Langrel , et al. December 20, 2 | 2011-12-20 |
Raisable Scan Head for an Imaging Apparatus
App 20110292473 - Cui; Chengwu ; et al. | 2011-12-01 |
Methods of moving a media sheet in a scanning device
Grant 7,913,992 - Langrel , et al. March 29, 2 | 2011-03-29 |
Estimating light output of a lamp in a scanner
Grant 7,911,654 - Cui , et al. March 22, 2 | 2011-03-22 |
Linear Light Diffusing Structure for Document Scanners
App 20110044036 - Cui; Chengwu ; et al. | 2011-02-24 |
Method for adjusting a controller of a scanner
Grant 7,817,315 - Cui , et al. October 19, 2 | 2010-10-19 |
Methods for identifying marks using a digital master document and scanned image enhancement
Grant 7,791,756 - Cui September 7, 2 | 2010-09-07 |
Image Scanning Apparatus and Methods
App 20100142008 - Beegle; James Thomas ; et al. | 2010-06-10 |
Method For Dissipating Heat Produced In Scan Head Assembly Of Imaging Apparatus
App 20100142010 - Cui; Chengwu ; et al. | 2010-06-10 |
Apparatus and Method for Scanner Skew Adjustment in an Image Forming Device
App 20100110509 - Cui; Chengwu ; et al. | 2010-05-06 |
Method and device for converting scanned text to audio data via connection lines and lookup tables
Grant 7,675,641 - Cui , et al. March 9, 2 | 2010-03-09 |
Scanhead For Image Illumination Uniformity And Method Thereof
App 20090279178 - Cui; Chengwu | 2009-11-12 |
Optical Imaging With Optimized Illumination Efficiency And Uniformity
App 20090180160 - Cui; Chengwu | 2009-07-16 |
System and method of simplex and duplex scanning
App 20090168125 - Wilson; Stephen ; et al. | 2009-07-02 |
Scanner and System Employing Composite Illumination
App 20090168122 - Cui; Chengwu | 2009-07-02 |
Method and System For Calibrating A Scanner Having A Scan Bar Including Sensor Elements
App 20090168116 - Cui; Chengwu | 2009-07-02 |
Methods of Moving A Media Sheet In A Scanning Device
App 20090160122 - Langrel; Charles Brandon ; et al. | 2009-06-25 |
Method for Adjusting a Controller of a Scanner
App 20090153698 - Cui; Chengwu ; et al. | 2009-06-18 |
Scanner Calibration Strip, Scanner, and Method for Segmenting a Scanned Document Image
App 20090153912 - Ahmed; Mohamed Nooman ; et al. | 2009-06-18 |
Detachable Transparent Plate For Scan Head Assembly
App 20090153920 - Cui; Chengwu ; et al. | 2009-06-18 |
Enhanced Illuminated Scanning Unit Reference Marker
App 20090153919 - Langrel; Charles B. ; et al. | 2009-06-18 |
Scanning System for Generating an Image
App 20080285096 - Cui; Chengwu ; et al. | 2008-11-20 |
System and Method for Saving and Retrieving Job Settings by Printing and Scanning on a Multifunction Document Management System
App 20080273222 - Cui; Chengwu | 2008-11-06 |
Contaminant particle identification and compensation with multichannel information during scanner calibration
Grant 7,423,789 - Borders , et al. September 9, 2 | 2008-09-09 |
System and methods for multiple imaging element scanning and copying
Grant 7,388,693 - Ahmed , et al. June 17, 2 | 2008-06-17 |
Method and apparatus for compensating two-dimensional images for illumination non-uniformities
App 20070159655 - Cui; Chengwu | 2007-07-12 |
Scanning apparatus and methods
App 20070046930 - Cui; Chengwu ; et al. | 2007-03-01 |
Contaminant particle identification and compensation with multichannel information during scanner calibration
App 20070047016 - Borders; Jesse R. ; et al. | 2007-03-01 |
Method and system for combining images
App 20060256397 - Cui; Chengwu | 2006-11-16 |
Methods for identifying marks using a digital master document and scanned image enhancement
App 20060250660 - Cui; Chengwu | 2006-11-09 |
Methods for automatically identifying user selected answers on a test sheet
App 20060252023 - Cui; Chengwu | 2006-11-09 |
Methods for providing encoded visual borders on a scannable document
App 20060119898 - Cui; Chengwu | 2006-06-08 |
Method and device for converting a scanned image to an audio signal
App 20060092480 - Cui; Chengwu ; et al. | 2006-05-04 |
Gamut mapping algorithm for business graphics
Grant 6,956,581 - Cui , et al. October 18, 2 | 2005-10-18 |
System and methods for multiple imaging element scanning and copying
App 20040169870 - Ahmed, Mohamed N. ; et al. | 2004-09-02 |
Shingle masks that reduce banding effect on ink jet printers
Grant 6,764,162 - Biddle , et al. July 20, 2 | 2004-07-20 |
Gamut mapping algorithm for business graphics
App 20040056867 - Cui, Chengwu ; et al. | 2004-03-25 |
Shingle masks that reduce banding effect on ink jet printers
App 20030202215 - Biddle, Mary Ellen ; et al. | 2003-10-30 |
| 