Patents by Inventor Yunwei Jia

Yunwei Jia 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: 9449367
    Abstract: Presented herein are caching structures and apparatus for use in block based video. In one embodiment, there is described a system receiving lower resolution frames and generating higher resolution frames. The system comprises an upsampling circuit, a first circuit, and a second circuit. The upsampling circuit upsamples a particular lower resolution frame, thereby resulting in an upsampled frame. The first circuit maps frames that are proximate to the particular frame, to the particular frame. The second circuit simultaneously updates the upsampled frame with two or more blocks from at least one of the frames that are proximate to the particular frame.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: September 20, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Yunwei Jia, Paul Wiercienski
  • Patent number: 8830394
    Abstract: Presented herein are system(s), method(s), and apparatus for providing high resolution frames. In one embodiment, there is a method comprising receiving upscaled frames; motion estimating the upscaled frames; and motion compensating the upscaled frames.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Yunwei Jia, Samir Hulyalkar, Steven Hanna, Lee Shu Key
  • Publication number: 20140036147
    Abstract: Presented herein are system(s), method(s), and apparatus for providing high resolution frames. In one embodiment, there is a method comprising receiving upscaled frames; motion estimating the upscaled frames; and motion compensating the upscaled frames.
    Type: Application
    Filed: October 14, 2013
    Publication date: February 6, 2014
    Applicant: Broadcom Corporation
    Inventors: YUNWEI JIA, SAMIR HULYALKAR, STEVEN HANNA, LEE SHU KEY
  • Patent number: 8558948
    Abstract: Presented herein are system(s), method(s), and apparatus for providing high resolution frames. In one embodiment, there is a method comprising receiving upscaled frames; motion estimating the upscaled frames; and motion compensating the upscaled frames.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: October 15, 2013
    Assignee: Broadcom Corporation
    Inventors: Yunwei Jia, Samir Hulyalkar, Steven Hanna, Keith Lee
  • Patent number: 8401070
    Abstract: A method for inverse telecine. The method generally includes the steps of (A) checking if a current field of a plurality of fields in a video sequence repeats in the video sequence according to a pattern-based approach where the current field fits a telecine pattern, (B) checking if the current field repeats according to a first pattern-less approach where the current field complies with at least one of a plurality of rules and (C) generating a signal for an encoder in (i) an asserted state if the current field repeats and (ii) a deasserted state if the current field does not repeat.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: March 19, 2013
    Assignee: LSI Corporation
    Inventors: Yunwei Jia, Lowell L. Winger, Elliot N. Linzer
  • Publication number: 20130063575
    Abstract: A method and system for reducing crosstalk for a three dimensional display includes a processor in communication with a display configured to display three dimensional video. The processor is configured to determine a viewing angle between a section of the three dimensional display and a viewpoint of the three dimensional display, generate a crosstalk compensation function for the section of the three dimensional display, wherein the crosstalk function compensates for the crosstalk at the viewing angle, and apply the crosstalk compensation function to the section of the three dimensional display to reduce the crosstalk of the three dimensional display from the viewing angle.
    Type: Application
    Filed: September 14, 2011
    Publication date: March 14, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Yunwei Jia, Steven Nashed Hanna
  • Patent number: 8331458
    Abstract: A method for composite noise filtering is disclosed. The method generally includes the steps of (A) generating a selection value in response to a stationary check identifying one of a plurality of blendings for a current item of a current field, (B) generating a filtered item in response to one of (i) a first of the blendings between the current item and a first previous item co-located in a first previous field having an opposite phase of composite artifacts from the current field and (ii) a second of the blendings between the current item and a first motion compensated item from the first previous field and (C) switching between the first blending and the second blending in response to the selection value.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: December 11, 2012
    Assignee: LSI Corporation
    Inventors: Yunwei Jia, Lowell L. Winger
  • Patent number: 8306121
    Abstract: A method to generate super-resolution images using a sequence of low resolution images is disclosed. The method includes generating an estimated high resolution image, motion estimating between the estimated high resolution image and comparison images from the sequence of low resolution images, motion-compensated back projecting, and motion-free back projecting that results in a super resolved image. A corresponding system for generating super-resolution images includes a high resolution image estimation module, a motion estimating module, a motion-compensated back projection module, a motion-free back projection module, an input interface, and an output interface.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: November 6, 2012
    Assignee: ATI Technologies ULC
    Inventor: Yunwei Jia
  • Patent number: 8223264
    Abstract: A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an edge in the picture proximate a location interlaced with a field of the picture, (B) generating a plurality of neighbor scores by searching for the edge along a plurality of neighbor angles proximate a particular angle of the primary angles corresponding to a particular score of the primary scores having a best value and (C) identifying a best score from a group of scores consisting of the particular score and the neighbor scores to generate an interpolated sample at the location.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: July 17, 2012
    Assignee: LSI Corporation
    Inventors: Lowell L. Winger, Yunwei Jia, Aaron G. Wells, Elliot N. Linzer, Simon Booth, Guy Cote
  • Patent number: 8154663
    Abstract: A method for contrast enhancement of a video signal comprises receiving a video signal frame, gathering statistics about the video signal frame, calculating the effective input dynamic range of the video signal frame, calculating the effective output dynamic range of the video signal frame, and constructing a transform to enhance the picture in the video signal frame by mapping the effective input dynamic range to the effective output dynamic range via the transform.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: April 10, 2012
    Assignee: Sigma Designs, Inc.
    Inventors: Yunwei Jia, Bonaventure Karuta
  • Patent number: 8144778
    Abstract: Systems and methods of motion compensated frame rate conversion are described herein. These systems and methods convert an input video sequence at a first frame rate to an output video sequence at a second frame rate through a novel motion estimation and motion vector processing stage that produces a motion field having a plurality of motion vectors that describe the movement of objects between input video frames from the perspective of an interpolated video frame. A subsequent motion compensated interpolation stage then constructs the interpolated video frame using an adaptively blended combination of a motion compensated prediction and a temporal average prediction of the pixel values from the input video frames.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: March 27, 2012
    Assignee: Sigma Designs, Inc.
    Inventors: Yunwei Jia, Darryl Lee, Stanley Fok, Gheorghe Berbecel
  • Patent number: 8023041
    Abstract: A method for detecting moving interlaced text in a video sequence originating through telecine is disclosed. The method generally includes the steps of (A) checking a motion condition of a current block in a current field in the video sequence for motion both (i) from a previous field in the video sequence to the current field and (ii) from the current field to a next field in the video sequence, (B) checking an artifact condition of the current block for a plurality of symmetric interlaced artifacts in both (i) a forward temporal direction and (ii) a backward temporal direction and (C) asserting a block motion indicator for the current block if all of (i) the motion condition is true and (ii) the artifact condition is true.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: September 20, 2011
    Assignee: LSI Corporation
    Inventors: Yunwei Jia, Lowell L. Winger
  • Publication number: 20110149150
    Abstract: Presented herein are system(s), method(s), and apparatus for providing high resolution frames. In one embodiment, there is a method comprising receiving upscaled frames; motion estimating the upscaled frames; and motion compensating the upscaled frames.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Inventors: Yunwei Jia, Samir Hulyalkar, Steven Hanna, Keith Lee
  • Publication number: 20110141348
    Abstract: Presented herein are caching structures and apparatus for use in block based video. In one embodiment, there is described a system receiving lower resolution frames and generating higher resolution frames. The system comprises an upsampling circuit, a first circuit, and a second circuit. The upsampling circuit upsamples a particular lower resolution frame, thereby resulting in an upsampled frame. The first circuit maps frames that are proximate to the particular frame, to the particular frame. The second circuit simultaneously updates the upsampled frame with two or more blocks from at least one of the frames that are proximate to the particular frame.
    Type: Application
    Filed: December 10, 2009
    Publication date: June 16, 2011
    Inventors: Yunwei Jia, Paul Wiercienski
  • Publication number: 20110109794
    Abstract: Presented herein are caching structures and apparatus for use in block based video. In one embodiment, there is described a system for providing receiving lower resolution frames and generating higher resolution frames. The system comprises an integrated circuit. The integrated circuit comprises a first circuit, a direct memory access, and a cache. The first circuit maps frames that are proximate to a particular frame to the particular frame. The direct memory access fetches blocks from said proximate frames. The cache stores at least some of the blocks from said proximate frames.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 12, 2011
    Inventors: Paul Wiercienski, Yunwei Jia
  • Publication number: 20110096231
    Abstract: A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an edge in the picture proximate a location interlaced with a field of the picture, (B) generating a plurality of neighbor scores by searching for the edge along a plurality of neighbor angles proximate a particular angle of the primary angles corresponding to a particular score of the primary scores having a best value and (C) identifying a best score from a group of scores consisting of the particular score and the neighbor scores to generate an interpolated sample at the location.
    Type: Application
    Filed: January 4, 2011
    Publication date: April 28, 2011
    Inventors: Lowell L. Winger, Yunwei Jia, Aaron G. Wells, Elliot N. Linzer, Simon Booth, Guy Cote
  • Patent number: 7893993
    Abstract: A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an edge in the picture proximate a location interlaced with a field of the picture, (B) generating a plurality of neighbor scores by searching for the edge along a plurality of neighbor angles proximate a particular angle of the primary angles corresponding to a particular score of the primary scores having a best value and (C) identifying a best score from a group of scores consisting of the particular score and the neighbor scores to generate an interpolated sample at the location.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: February 22, 2011
    Assignee: LSI Corporation
    Inventors: Lowell L. Winger, Yunwei Jia, Aaron G. Wells, Elliot N. Linzer, Simon Booth, Guy Cote
  • Publication number: 20100220235
    Abstract: A method for composite noise filtering is disclosed. The method generally includes the steps of (A) generating a selection value in response to a stationary check identifying one of a plurality of blendings for a current item of a current field, (B) generating a filtered item in response to one of (i) a first of the blendings between the current item and a first previous item co-located in a first previous field having an opposite phase of composite artifacts from the current field and (ii) a second of the blendings between the current item and a first motion compensated item from the first previous field and (C) switching between the first blending and the second blending in response to the selection value.
    Type: Application
    Filed: May 12, 2010
    Publication date: September 2, 2010
    Inventors: Yunwei Jia, Lowell L. Winger
  • Patent number: 7751484
    Abstract: A method for composite noise filtering is disclosed. The method generally includes the steps of (A) generating a selection value in response to a stationary check identifying one of a plurality of blendings for a current item of a current field, (B) generating a filtered item in response to one of (i) a first of the blendings between the current item and a first previous item co-located in a first previous field having an opposite phase of composite artifacts from the current field and (ii) a second of the blendings between the current item and a first motion compensated item from the first previous field and (C) switching between the first blending and the second blending in response to the selection value.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: July 6, 2010
    Assignee: LSI Corporation
    Inventors: Yunwei Jia, Lowell L. Winger
  • Patent number: 7705913
    Abstract: A method for film mode detection is disclosed. The method generally includes the steps of (A) detecting if a plurality of fields in a video signal are in a 3:2 pull-down pattern to control a plurality of first flags based on a plurality of statistics gathered from the fields, (B) detecting if the fields contain moving interlaced text to control a second flag based on both (i) the statistics and (ii) a repeat-field flag of the first flags that indicates repeating consecutive same polarity fields and (C) deciding among a plurality of inverse telecine processes to de-interlace the fields based on all of (i) a 3:2 mode flag of the first flags, (ii) a 3:2 direction flag of the first flags and (iii) the second flag.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: April 27, 2010
    Assignee: LSI Corporation
    Inventors: Yunwei Jia, Lowell L. Winger