Patents by Inventor Mahesh B. Chappalli

Mahesh B. Chappalli 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).

  • Publication number: 20170092228
    Abstract: An electronic display includes a display side and an ambient light sensor configured to measure received light received through the display side. The electronic display also includes multiple pixels located between the display side and the ambient light sensor. The multiple pixels are configured to emit display light through the display side.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 30, 2017
    Inventors: Guy Cote, Mahesh B. Chappalli, Venu M. Duggineni
  • Publication number: 20170092180
    Abstract: A method for adjusting the gain of a plurality of pixels across a display includes determining grid point gain adjustments for a plurality of grid points corresponding to coordinates across the display. The corresponding coordinates have a non-uniform spacing across the display. The method also includes determining uniformity gain adjustments for the plurality of pixels via interpolation with the grid point gain adjustments. The method also includes multiplying the uniformity gain adjustment for each pixel of the plurality of pixels by an input signal to the respective pixel. The drive strength supplied to the respective pixel is based at least in part on the input signal, and the drive strength supplied to each pixel is configured to control the light emitted from the respective pixel.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 30, 2017
    Inventors: Guy Cote, Mahesh B. Chappalli
  • Publication number: 20170092236
    Abstract: Systems, apparatuses, and methods for implementing a timestamp based display update mechanism. A display control unit includes a timestamp queue for storing timestamps, wherein each timestamp indicates when a corresponding frame configuration set should be fetched from memory. At pre-defined intervals, the display control unit may compare the timestamp of the topmost entry of the timestamp queue to a global timer value. If the timestamp is earlier than the global timer value, the display control unit may pop the timestamp entry and fetch the frame next configuration set from memory. The display control unit may then apply the updates of the frame configuration set to its pixel processing elements. After applying the updates, the display control unit may fetch and process the source pixel data and then drive the pixels of the next frame to the display.
    Type: Application
    Filed: September 29, 2015
    Publication date: March 30, 2017
    Inventors: Brijesh Tripathi, Arthur L. Spence, Joshua P. de Cesare, Ilie Garbacea, Guy Cote, Mahesh B. Chappalli, Malcolm D. Gray
  • Publication number: 20170092174
    Abstract: Devices and methods for reducing or eliminating sub-pixel layout artifacts on an electronic display are provided. One such device may include an electronic display to display image data, a processor to generate the image data, and sub-pixel layout compensation circuitry that modifies the image data to reduce or eliminate a sub-pixel layout artifact of the electronic display by modifying pixels of the image data on a sub-pixel-by-sub-pixel basis. The sub-pixel layout compensation circuitry may adjust a sub-pixel of a first color in a first pixel based at least in part on a first gradient between the sub-pixel of the first color of the first pixel and a sub-pixel of the first color of a second pixel.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 30, 2017
    Inventors: Guy Cote, Mahesh B. Chappalli
  • Patent number: 9245495
    Abstract: Systems, apparatus, articles, and methods are described including operations to generate a weighted look-up-table based at least in part on individual pixel input values within an active block region and on a plurality of contrast compensation functions. A second level compensation may be performed for a center pixel block of the active region based at least in part on the weighted look-up-table.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: January 26, 2016
    Assignee: INTEL CORPORATION
    Inventors: Niraj Gupta, Supratim Pal, Mahesh B. Chappalli, Yi-Jen Chiu, Hong Jiang
  • Publication number: 20140313243
    Abstract: Systems, apparatus, articles, and methods are described including operations to generate a weighted look-up-table based at least in part on individual pixel input values within an active block region and on a plurality of contrast compensation functions. A second level compensation may be performed for a center pixel block of the active region based at least in part on the weighted look-up-table.
    Type: Application
    Filed: December 21, 2012
    Publication date: October 23, 2014
    Inventors: Niraj Gupta, Supratim Pal, Mahesh B. Chappalli, Yi-Jen Chiu, Hong Jiang
  • Patent number: 8559518
    Abstract: A system and method of providing motion estimation is disclosed. A recursive motion estimation module applies multiple recursive motion estimation rules which have complimentary performance advantages. A selection module provides a switching scheme which determines which rule to apply to a specific block within a video frame.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: October 15, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mahesh B Chappalli, Yeong-Taeg Kim
  • Patent number: 8259225
    Abstract: Embodiments include systems and methods for interpolating frames. In one embodiment, a system and method provides reduced halo and consequently a higher degree of accuracy/fidelity. In one embodiment, a method of video frame interpolation includes receiving forward and backward motion estimation data based on a first video frame and a second, subsequent, video frame. Each block in a plurality of blocks of pixels in an intermediate frame between the first and second frames is classified according to measures of covering and uncovering associated with the forward and backward motion estimation data. A block to be constructed is estimated based on the classification results of proximal ones of the plurality of blocks to the block to be constructed.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mahesh B Chappalli, Yeong Taeg Kim
  • Patent number: 8175163
    Abstract: Embodiments include systems and methods for interpolating frames. In one embodiment, a system and method provides reduced halo and consequently a higher degree of accuracy/fidelity. In one embodiment, a method of video frame interpolation includes receiving first motion data based on a first video frame and a second video frame, receiving second motion data based on the second video frame and a third video frame, and estimating a block of an interpolated frame based on the second motion data and the first motion data. In one embodiment, the estimating comprises selectively using the second motion data based on the first motion data.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: May 8, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mahesh B. Chappalli, Yeong-Taeg Kim
  • Publication number: 20100316125
    Abstract: Embodiments include systems and methods for interpolating frames. In one embodiment, a system and method provides reduced halo and consequently a higher degree of accuracy/fidelity. In one embodiment, a method of video frame interpolation includes receiving first motion data based on a first video frame and a second video frame, receiving second motion data based on the second video frame and a third video frame, and estimating a block of an interpolated frame based on the second motion data and the first motion data. In one embodiment, the estimating comprises selectively using the second motion data based on the first motion data.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 16, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Mahesh B. Chappalli, Yeong-Taeg Kim
  • Publication number: 20100045856
    Abstract: Embodiments include systems and methods for interpolating frames. In one embodiment, a system and method provides reduced halo and consequently a higher degree of accuracy/fidelity. In one embodiment, a method of video frame interpolation includes receiving forward and backward motion estimation data based on a first video frame and a second, subsequent, video frame. Each block in a plurality of blocks of pixels in an intermediate frame between the first and second frames is classified according to measures of covering and uncovering associated with the forward and backward motion estimation data. A block to be constructed is estimated based on the classification results of proximal ones of the plurality of blocks to the block to be constructed.
    Type: Application
    Filed: August 20, 2008
    Publication date: February 25, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Mahesh B. Chappalli, Yeong Taeg Kim
  • Publication number: 20090322956
    Abstract: A system and method of providing motion estimation is disclosed. A recursive motion estimation module applies multiple recursive motion estimation rules which have complimentary performance advantages. A selection module provides a switching scheme which determines which rule to apply to a specific block within a video frame.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: Samsung Electronics Co. Ltd.
    Inventors: Mahesh B. Chappalli, Yeong-Taeg Kim