Patents by Inventor Saif Choudhary

Saif Choudhary 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).

  • Patent number: 7034843
    Abstract: Automatically and adaptively controlling contrast and color of a display device by computing a normalized histogram of a current image, computing degrees of correlation between the normalized histogram and a number of template histograms, sorting the template histograms based upon the associated degrees of correlation, selecting a number of the best correlated template histograms based on the sorting, blending the selected the transfer functions associated with the selected template histograms to form a blended transfer function, and applying the blended transfer function to the current image.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: April 25, 2006
    Assignee: Genesis Microchip Inc.
    Inventors: Hari N. Nair, Neha Agrawal, Saif Choudhary, Ashish Neema, Arun Johary
  • Publication number: 20050035974
    Abstract: Automatically and adaptively controlling contrast and color of a display device by computing a normalized histogram of a current image, computing degrees of correlation between the normalized histogram and a number of template histograms, sorting the template histograms based upon the associated degrees of correlation, selecting a number of the best correlated template histograms based on the sorting, blending the selected the transfer functions associated with the selected template histograms to form a blended transfer function, and applying the blended transfer function to the current image.
    Type: Application
    Filed: May 18, 2004
    Publication date: February 17, 2005
    Inventors: Hari Nair, Neha Agrawal, Saif Choudhary, Ashish Neema, Arun Johary
  • Patent number: 6833839
    Abstract: An apparatus and method for allowing color adjustments in display devices is disclosed The apparatus comprises a multi-resolution structure for providing color adjustments; and an interpolator for interpolating at least one offset of the multi-resolution structure. An apparatus and method in accordance with the present invention uses a combination of color look-up tables with different levels of resolution, followed by interpolation to provide a display process which has high resolution but utilizes minimal memory. In so doing, memory is used for high-resolution areas only where needed. The multi-resolution structure is a very good approximation to the theoretical mapping table in the areas where it is needed. At the same time, since the high resolution areas are localized, a significant reduction in memory storage is possible.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: December 21, 2004
    Assignee: Genesis Microchip Inc.
    Inventors: Hari Nair, Neha Agrawal, Saif Choudhary, Shashi Kumar, Arun Johary
  • Publication number: 20040246268
    Abstract: An apparatus and method for allowing color adjustments in display devices is disclosed The apparatus comprises a multi-resolution structure for providing color adjustments; and an interpolator for interpolating at least one offset of the multi-resolution structure. An apparatus and method in accordance with the present invention uses a combination of color look-up tables with different levels of resolution, followed by interpolation to provide a display process which has high resolution but utilizes minimal memory. In so doing, memory is used for high-resolution areas only where needed. The multi-resolution structure is a very good approximation to the theoretical mapping table in the areas where it is needed. At the same time, since the high resolution areas are localized, a significant reduction in memory storage is possible.
    Type: Application
    Filed: July 12, 2004
    Publication date: December 9, 2004
    Inventors: Hari Nair, Neha Agrawal, Saif Choudhary, Shashi Kumar, Arun Johary
  • Publication number: 20040179022
    Abstract: A method and apparatus that allows a display device to adaptively and automatically control display contrast and color is disclosed.
    Type: Application
    Filed: March 26, 2004
    Publication date: September 16, 2004
    Applicant: Genesis Microchip Inc.
    Inventors: Hari Nair, Neha Agrawal, Saif Choudhary, Ashish Neema, Arun Johary
  • Patent number: 6778183
    Abstract: A method and apparatus that allows a display device to adaptively and automatically control display contrast and color is disclosed. The method and system in accordance with the present invention can be described by the following sequential process: 1. Separating an input image data value into its luma and chroma components. 2. Collecting the luma distribution data over the entire image or a specified window. 3. Analyzing the luma distribution. 4. Generating an appropriate contrast control response that modifies the input luma component to generate an output luma component, on a pixel by pixel basis. 5. Analyzing the input luma component and the output luma component, and an input chroma component, to generate an appropriate modification for the chroma component, on a pixel by pixel basis.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: August 17, 2004
    Assignee: Genesis Microchip Inc.
    Inventors: Hari Nair, Neha Agrawal, Saif Choudhary, Ashish Neema, Arun Johary
  • Publication number: 20040036696
    Abstract: An apparatus and method for allowing color adjustments in display devices is disclosed The apparatus comprises a multi-resolution structure for providing color adjustments; and an interpolator for interpolating at least one offset of the multi-resolution structure. An apparatus and method in accordance with the present invention uses a combination of color look-up tables with different levels of resolution, followed by interpolation to provide a display process which has high resolution but utilizes minimal memory. In so doing, memory is used for high-resolution areas only where needed. The multi-resolution structure is a very good approximation to the theoretical mapping table in the areas where it is needed. At the same time, since the high resolution areas are localized, a significant reduction in memory storage is possible.
    Type: Application
    Filed: May 13, 2002
    Publication date: February 26, 2004
    Inventors: Hari Nair, Neha Agrawal, Saif Choudhary, Shashi Kumar, Arun Johary