Patents by Inventor Jianfen Zeng

Jianfen Zeng 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).

  • Method, system and software product for color image encoding
    Patent number: 8379044
    Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: February 19, 2013
    Assignee: SlipStream Data Inc.
    Inventors: En-hui Yang, Jianfen Zeng
  • Method, System and Software Product for Color Image Encoding
    Publication number: 20120301022
    Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.
    Type: Application
    Filed: July 31, 2012
    Publication date: November 29, 2012
    Applicant: SlipStream Data Inc.
    Inventors: En-hui Yang, Jianfen Zeng
  • Method, system and software product for color image encoding
    Patent number: 8253757
    Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: August 28, 2012
    Assignee: SlipStream Data Inc.
    Inventors: En-Hui Yang, Jianfen Zeng
  • Method, system and software product for color image encoding
    Patent number: 8106919
    Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: January 31, 2012
    Assignee: SlipStream Data Inc.
    Inventors: En-Hui Yang, Jianfen Zeng
  • Method, System and Software Product for Color Image Encoding
    Publication number: 20110279474
    Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.
    Type: Application
    Filed: July 29, 2011
    Publication date: November 17, 2011
    Applicant: SLIPSTREAM DATA INC.
    Inventors: En-Hui Yang, Jianfen Zeng
  • Method, system and software product for color image encoding
    Patent number: 8022963
    Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: September 20, 2011
    Assignee: SlipStream Data Inc.
    Inventors: En-Hui Yang, Jianfen Zeng
  • Method, System and Software Product for Color Image Encoding
    Publication number: 20110170771
    Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.
    Type: Application
    Filed: March 25, 2011
    Publication date: July 14, 2011
    Applicant: SLIPSTREAM DATA INC.
    Inventors: En-Hui Yang, Jianfen Zeng
  • Method, system and software product for color image encoding
    Patent number: 7916154
    Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: March 29, 2011
    Assignee: Slipstream Data Inc.
    Inventors: En-Hui Yang, Jianfen Zeng
  • METHOD, SYSTEM AND SOFTWARE PRODUCT FOR COLOR IMAGE ENCODING
    Publication number: 20090232394
    Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.
    Type: Application
    Filed: March 16, 2009
    Publication date: September 17, 2009
    Inventors: En-Hui Yang, Jianfen Zeng
  • Method, system and software product for color image encoding
    Patent number: 7525552
    Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: April 28, 2009
    Assignee: Slipstream Data Inc.
    Inventors: En-Hui Yang, Jianfen Zeng
  • Method, system and software product for color image encoding
    Publication number: 20050237951
    Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.
    Type: Application
    Filed: April 23, 2004
    Publication date: October 27, 2005
    Inventors: En-Hui Yang, Jianfen Zeng