Patents by Inventor Xiao-fan Feng

Xiao-fan Feng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Systems and methods for multi-dimensional dither structure creation and application
    Patent number: 7352373
    Abstract: Embodiments of the present invention comprise systems and methods for creation, modification and implementation of dither pattern structures.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: April 1, 2008
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Xiao-Fan Feng, Scott J. Daly
  • System for reducing crosstalk
    Patent number: 7342592
    Abstract: A system for reducing crosstalk for a display.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: March 11, 2008
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Xiao-fan Feng
  • Motion adaptive black data insertion
    Publication number: 20080018571
    Abstract: A backlight display has improved display characteristics. An image is displayed on the display which includes a liquid crystal material with a light valve. The display receives an image signal and modifies the light based upon motion.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 24, 2008
    Inventor: Xiao-Fan Feng
  • Methods and Systems for Motion Adaptive Backlight Driving for LCD Displays with Area Adaptive Backlight
    Publication number: 20070285382
    Abstract: Elements of the present invention relate to systems and methods for generating, modifying and applying backlight array driving values.
    Type: Application
    Filed: August 22, 2007
    Publication date: December 13, 2007
    Inventor: Xiao-Fan Feng
  • Blur detection system
    Patent number: 7181082
    Abstract: A system of estimating and reducing image blur in digital images stored in a digital file as a sequence of DCT coefficients arranged in a plurality of blocks. The disclosed system may preferably calculate one or more blur indicators from selected ones of the sequence of DCT coefficients and selectively filter a digital image based upon the calculated one or more blur indicators.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: February 20, 2007
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Xiao-fan Feng
  • System for reducing crosstalk
    Patent number: 7176938
    Abstract: A system for reducing crosstalk for a display.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: February 13, 2007
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Xiao-fan Feng
  • Dynamic gamma for a liquid crystal display
    Patent number: 7164284
    Abstract: A system for characterizing the temporal luminance response of a liquid crystal display. A liquid crystal display may be forced at an initial time from a first luminance value to a measured second luminance value. The second luminance value may be measured at a predetermined time after the initial time.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: January 16, 2007
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Hao Pan, Xiao-fan Feng, Scott J. Daly
  • Methods and Systems for Adaptive Dither Pattern Application
    Publication number: 20060221401
    Abstract: Embodiments of the present invention comprise methods and systems for adaptive dither pattern array generation and application.
    Type: Application
    Filed: June 15, 2006
    Publication date: October 5, 2006
    Inventors: Scott Daly, Xiao-fan Feng
  • Methods and Systems for Adaptive Dither Pattern Processing
    Publication number: 20060221366
    Abstract: Embodiments of the present invention comprise methods and systems for adaptive dither pattern array generation and application.
    Type: Application
    Filed: June 15, 2006
    Publication date: October 5, 2006
    Inventors: Scott Daly, Xiao-fan Feng
  • Image display device with reduced flickering and blur
    Publication number: 20060202945
    Abstract: A backlit display with improved display characteristics.
    Type: Application
    Filed: June 20, 2005
    Publication date: September 14, 2006
    Inventor: Xiao-fan Feng
  • Methods and systems for adaptive dither structures
    Patent number: 7098927
    Abstract: Embodiments of the present invention comprise methods and systems for adaptive dither pattern array generation and application.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: August 29, 2006
    Assignee: Sharp Laboratories of America, INC
    Inventors: Scott J. Daly, Xiao-fan Feng
  • Black point insertion
    Publication number: 20060181503
    Abstract: A backlight display has improved display characteristics. An image is displayed on the display which includes a liquid crystal material with a light valve. The display receives an image signal, modifies the light valve with an overdrive for a first region of the image based upon the timing of the illumination of the region, and modifies the light valve with an overdrive for a second region of the image based upon the timing of the illumination of the second region.
    Type: Application
    Filed: September 6, 2005
    Publication date: August 17, 2006
    Inventor: Xiao-Fan Feng
  • System for reducing crosstalk
    Publication number: 20060132511
    Abstract: A system for reducing crosstalk for a display.
    Type: Application
    Filed: January 11, 2006
    Publication date: June 22, 2006
    Inventor: Xiao-fan Feng
  • System for reducing crosstalk
    Publication number: 20060114274
    Abstract: A system for reducing crosstalk for a display.
    Type: Application
    Filed: January 11, 2006
    Publication date: June 1, 2006
    Inventor: Xiao-fan Feng
  • Technique that preserves specular highlights
    Publication number: 20060103621
    Abstract: A method for displaying an image on a liquid crystal display that includes a plurality of light emitting elements and a light valve. A image signal is received and a first light emitting element is illuminated based upon a substantial maximum of a non-uniform image signal in a first region. A second light emitting element is illuminated based upon a substantial maximum of a non-uniform image signal in a second region including, where the first and second light emitting elements are simultaneously illuminated.
    Type: Application
    Filed: September 22, 2005
    Publication date: May 18, 2006
    Inventor: Xiao-Fan Feng
  • System for displaying images on a display
    Patent number: 7046262
    Abstract: Processing of images for displaying on a display for displaying images on a liquid crystal display.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 16, 2006
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Xiao-fan Feng, Scott Daly
  • System for reducing crosstalk
    Patent number: 7023451
    Abstract: A system for reducing crosstalk for a display.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: April 4, 2006
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Xiao-fan Feng
  • Image compression using a color visual model
    Publication number: 20060039619
    Abstract: A system for coding images, and more particularly, to a system for compressing images to a reduced number of bits by employing a Discrete Cosine Transform (DCT) in combination with a visual model.
    Type: Application
    Filed: January 21, 2004
    Publication date: February 23, 2006
    Inventors: Xiao-fan Feng, Scott Daly, Shawmin Lei, Renjit Thomas
  • Method and apparatus for background adjustment in color reproduction devices
    Patent number: 6995866
    Abstract: A method for background adjustment. A background lightness level in an original image is estimated. Pixels are then converted to a luminance-chrominance color space. Pixels have lightness levels equal to the background lightness level are mapped to a value corresponding to white as background pixels. Chroma values for the background pixels are compared to a threshold and adjusted as needed, either by adjusting the lightness value or by removing the chrominance values. The luminance-chrominance data is then converted to output space.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: February 7, 2006
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Xiao-fan Feng, Jon Matthew Speigle, John Charles Dalrymple, James Zhixin Chang
  • Efficient document boundary determination
    Patent number: 6987880
    Abstract: An imaging system includes an imaging sensing device sensing an object having a first background color and a backing in opposing relationship with the object having a second background color which is substantially the same as the first background color. The imaging system determines at least one general bounding region of the object based upon a shadow cast onto backing by the object.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: January 17, 2006
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: John E. Dolan, John C. Dalrymple, James Zhixin Chang, Xiao-fan Feng