Patents by Inventor Michael D. Gallant

Michael D. Gallant 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: 9178633
    Abstract: An apparatus generally having an interface and a circuit is disclosed. The interface may be connectable to a network to monitor a media program streaming across the network to a media client. The circuit may be configured to (i) generate first information by modeling a buffer of the media client, the first information being representative of a plurality of events related to the buffer during a playback of the media program and (ii) generate a signal representative of a quality of experience of the media program in response to the first information.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 3, 2015
    Assignee: Avvasi Inc.
    Inventors: Roman C. Kordasiewicz, Kevin Goertz, Anthony P. Joch, Michael D. Gallant
  • Patent number: 9037743
    Abstract: Apparatus, methods and systems using no-reference techniques for computing quality scores for audio and video components of a media session, where the quality scores are estimates of perceived quality by the viewer for the individual components of the media session. A presentation quality score is computed for a media stream by parsing a container of the media stream to determine media stream characteristics, estimating an visual quality factor and based on the visual quality factor, determining the presentation quality score.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: May 19, 2015
    Assignee: AVVASI INC.
    Inventors: Roman C. Kordasiewicz, Anthony P. Joch, Michael D. Gallant
  • Patent number: 8731061
    Abstract: A method for transcoding that includes (A) generating a decoded frame by decoding an MPEG-2 input video stream, the decoded frame including decoded macroblocks; (B) determining a search center for encoding a current macroblock corresponding to a pair of the decoded macroblocks on consecutive macroblock rows, when (i) the encoding uses a predictive field mode and (ii) a current field being encoded is a second field of a current frame that has a first field as a reference field, the search center is a temporally scaled version of a decoded motion vector from an upper or a lower macroblock in the pair; (C) generating a refined motion vector by searching in a temporal search direction about the search center; and (D) generating an H.264 output video stream by encoding the current macroblock based on the refined motion vector.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: May 20, 2014
    Assignee: LSI Corporation
    Inventors: Anthony Peter Joch, Michael D. Gallant
  • Publication number: 20130318253
    Abstract: Apparatus, methods and systems using no-reference techniques for computing quality scores for audio and video components of a media session, where the quality scores are estimates of perceived quality by the viewer for the individual components of the media session. A presentation quality score is computed for a media stream by parsing a container of the media stream to determine media stream characteristics, estimating an visual quality factor and based on the visual quality factor, determining the presentation quality score.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 28, 2013
    Applicant: Avvasi Inc.
    Inventors: Roman C. Kordasiewicz, Anthony P. Joch, Michael D. Gallant
  • Patent number: 8437401
    Abstract: A method of motion estimation (ME) refinement. The method generally includes the steps of (A) generating an initial motion vector (MV) by conducting a first ME on an initial block in a picture, the initial block covering an initial area of the picture, (B) generating a current MV by conducting a second ME on a current block in the picture, (i) the current block covering a subset of the initial area and (ii) the second ME being seeded by the initial MV, (C) generating at least one additional MV by conducting at least one third ME on the current block, the at least one third ME being seeded respectively by at least one neighboring MV spatially adjacent to the current MV and (D) generating a refined MV of the current block by storing in a memory a best among the current MV and the additional MV.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: May 7, 2013
    Assignee: LSI Corporation
    Inventors: Pavel Novotny, Michael D. Gallant, Lowell L. Winger
  • Publication number: 20130041998
    Abstract: An apparatus generally having an interface and a circuit is disclosed. The interface may be connectable to a network to monitor a media program streaming across the network to a media client. The circuit may be configured to (i) generate first information by modeling a buffer of the media client, the first information being representative of a plurality of events related to the buffer during a playback of the media program and (ii) generate a signal representative of a quality of experience of the media program in response to the first information.
    Type: Application
    Filed: March 22, 2011
    Publication date: February 14, 2013
    Inventors: Roman C. Kordasiewicz, Kevin Goertz, Anthony P. Joch, Michael D. Gallant
  • Publication number: 20120307907
    Abstract: A method for transcoding that includes (A) generating a decoded frame by decoding an MPEG-2 input video stream, the decoded frame including decoded macroblocks; (B) determining a search center for encoding a current macroblock corresponding to a pair of the decoded macroblocks on consecutive macroblock rows, when (i) the encoding uses a predictive field mode and (ii) a current field being encoded is a second field of a current frame that has a first field as a reference field, the search center is a temporally scaled version of a decoded motion vector from an upper or a lower macroblock in the pair; (C) generating a refined motion vector by searching in a temporal search direction about the search center; and (D) generating an H.264 output video stream by encoding the current macroblock based on the refined motion vector.
    Type: Application
    Filed: July 11, 2012
    Publication date: December 6, 2012
    Inventors: Anthony Peter Joch, Michael D. Gallant
  • Patent number: 8265157
    Abstract: A method for transcoding is disclosed. The method generally includes the steps of (A) generating a decoded frame by decoding an input video stream in an MPEG-2 format, the decoded frame including a plurality of decoded macroblocks; (B) determining a current search center to be used in encoding a current macroblock into an H.264 format, the current macroblock corresponding to a pair of the decoded macroblocks on consecutive macroblock rows, wherein when (i) the encoding uses a predictive field mode and (ii) a current field being encoded comprises a second field of a current frame and has a first field of the current frame as a reference field, the current search center comprises a temporally scaled version of a decoded motion vector from one of an upper macroblock of the pair and a lower macroblock in the pair; (C) generating a refined motion vector by searching in a temporal search direction about the current search center; and (D) generating an output video stream in the H.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: September 11, 2012
    Assignee: LSI Corporation
    Inventors: Anthony Peter Joch, Michael D. Gallant
  • Publication number: 20120170660
    Abstract: A method of motion estimation (ME) refinement. The method generally includes the steps of (A) generating an initial motion vector (MV) by conducting a first ME on an initial block in a picture, the initial block covering an initial area of the picture, (B) generating a current MV by conducting a second ME on a current block in the picture, (i) the current block covering a subset of the initial area and (ii) the second ME being seeded by the initial MV, (C) generating at least one additional MV by conducting at least one third ME on the current block, the at least one third ME being seeded respectively by at least one neighboring MV spatially adjacent to the current MV and (D) generating a refined MV of the current block by storing in a memory a best among the current MV and the additional MV.
    Type: Application
    Filed: March 8, 2012
    Publication date: July 5, 2012
    Inventors: Pavel Novotny, Michael D. Gallant, Lowell L. Winger
  • Patent number: 8149915
    Abstract: A method of motion estimation (ME) refinement. The method generally includes the steps of (A) generating an initial motion vector (MV) by conducting a first ME on an initial block in a picture, the initial block covering an initial area of the picture, (B) generating a current MV by conducting a second ME on a current block in the picture, (i) the current block covering a subset of the initial area and (ii) the second ME being seeded by the initial MV, (C) generating at least one additional MV by conducting at least one third ME on the current block, the at least one third ME being seeded respectively by at least one neighboring MV spatially adjacent to the current MV and (D) generating a refined MV of the current block by storing in a memory a best among the current MV and the additional MV.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: April 3, 2012
    Assignee: LSI Corporation
    Inventors: Pavel Novotny, Michael D. Gallant, Lowell L. Winger
  • Patent number: 8009734
    Abstract: A method for implementing B-frame prediction in video compression comprising the steps of (A) setting a prediction flag (i) “off” if B-frames are used for block prediction and (ii) “on” if B-frames are not used for block prediction, (B) if the prediction flag is off, generating an output video signal in response to an input video signal by performing an inverse quantization step and an inverse transform step in accordance with a predefined coding specification and (C) if the prediction flag is on, bypassing the inverse quantization step and the inverse transform step.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: August 30, 2011
    Assignee: LSI Corporation
    Inventors: Guy Cote, Michael D. Gallant, Pavel Novotny, Lowell L. Winger
  • Patent number: 7933331
    Abstract: An apparatus generally having a first circuit and a second circuit is disclosed. The first circuit may be configured to (i) copy a plurality of first reference samples of a first reference image from an external memory, the first reference samples being proximate a first position within the first reference image and (ii) generate a first motion vector corresponding to a first current block of a current image by searching among the first reference samples. The second circuit may be configured to (i) copy a plurality of second reference samples of the first reference image from the external memory, the second reference samples being (a) proximate a second position within the first reference image and (b) non-adjacent the first reference samples and (ii) generate a second motion vector corresponding to the first current block by searching among the second reference samples.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: April 26, 2011
    Assignee: LSI Corporation
    Inventors: Michael D. Gallant, Eric C. Pearson
  • Patent number: 7835441
    Abstract: An apparatus generally having a reference memory and a motion estimation circuit is disclosed. The reference memory may store reference samples used in a motion estimation of a current block beyond a boundary of a picture. The motion estimation circuit may (i) buffer the reference samples as copied from the reference memory, the reference samples as buffered residing both (a) inside the boundary and (b) inside a search window of the motion estimation, (ii) shift a sub-set of the reference samples to align with a corner of a sub-window, the sub-window being (a) completely within the search window and (b) at least partially outside of the boundary, (iii) fill an empty portion of the sub-window with copies of the reference samples within the sub-set and (iv) generate difference values by comparing the current block against the reference samples within the sub-window a plurality of times.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: November 16, 2010
    Assignee: LSI Corporation
    Inventors: Eric C. Pearson, Harminder S. Banwait, Michael D. Gallant
  • Patent number: 7702020
    Abstract: An apparatus generally having a first circuit and a second circuit is disclosed. The first circuit may be configured to generate a plurality of sum values by adding a plurality of pixel difference values between a current block and a reference block, one of the sum values corresponding to each of a plurality of smallest partitions of the current block. The second circuit configured to (i) generate a plurality of intermediate values from the sum values, one of the intermediate values corresponding to each of a plurality of possible partitions of the current block, (ii) store a plurality of lowest values among the intermediate values as the current block is moved through a search window and (iii) generate a motion signal conveying at least one motion vector based on the lowest values.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: April 20, 2010
    Assignee: LSI Corporation
    Inventors: Michael D. Gallant, Eric C. Pearson
  • Publication number: 20090022223
    Abstract: An apparatus generally having a first circuit and a second circuit is disclosed. The first circuit may be configured to (i) copy a plurality of first reference samples of a first reference image from an external memory, the first reference samples being proximate a first position within the first reference image and (ii) generate a first motion vector corresponding to a first current block of a current image by searching among the first reference samples. The second circuit may be configured to (i) copy a plurality of second reference samples of the first reference image from the external memory, the second reference samples being (a) proximate a second position within the first reference image and (b) non-adjacent the first reference samples and (ii) generate a second motion vector corresponding to the first current block by searching among the second reference samples.
    Type: Application
    Filed: September 25, 2008
    Publication date: January 22, 2009
    Inventors: Michael D. Gallant, Eric C. Pearson
  • Patent number: 7453940
    Abstract: An apparatus for motion estimation generally including a memory and a circuit. The circuit may be configured to (i) search for a first motion vector for a first current block among a plurality of first reference samples, (ii) copy a plurality of second reference samples from the memory and (iii) search for a second motion vector for a second current block among the second reference samples copied from the memory and at least a portion of the first reference samples.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: November 18, 2008
    Assignee: LSI Corporation
    Inventors: Michael D. Gallant, Eric C. Pearson
  • Patent number: 7440500
    Abstract: An apparatus generally having a first memory and a circuit is disclosed. The first memory may be used for a motion estimation of a current block. The circuit may be configured to (i) determine if a search window for the current block is at least partially outside a boundary of a picture stored in a second memory, (ii) copy a first plurality of reference samples in the search window from the second memory to the first memory and (iii) map a plurality of reads from the first memory for a plurality of pad samples to the reference samples in the first memory, where the pad samples are determined to be outside the boundary.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: October 21, 2008
    Assignee: LSI Logic Corporation
    Inventors: Eric C. Pearson, Harminder S. Banwait, Michael D. Gallant
  • Publication number: 20080187046
    Abstract: A method for transcoding is disclosed. The method generally includes the steps of (A) generating a decoded frame by decoding an input video stream in an MPEG-2 format, the decoded frame including a plurality of decoded macroblocks; (B) determining a current search center to be used in encoding a current macroblock into an H.264 format, the current macroblock corresponding to a pair of the decoded macroblocks on consecutive macroblock rows, wherein when (i) the encoding uses a predictive field mode and (ii) a current field being encoded comprises a second field of a current frame and has a first field of the current frame as a reference field, the current search center comprises a temporally scaled version of a decoded motion vector from one of an upper macroblock of the pair and a lower macroblock in the pair; (C) generating a refined motion vector by searching in a temporal search direction about the current search center; and (D) generating an output video stream in the H.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 7, 2008
    Inventors: Anthony Peter Joch, Michael D. Gallant
  • Patent number: 7342964
    Abstract: An apparatus generally having a first circuit, a second circuit and a third circuit is disclosed. The first circuit may be configured to generate a plurality of difference values by calculating an absolute difference between each pixel from a current block and a corresponding pixel from a reference block substantially simultaneously. The second circuit may be configured to generate a plurality of sum values by adding the difference values. The third circuit may be configured to generate at least one motion vector in response to the sum values.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: March 11, 2008
    Assignee: LSI Logic Corporation
    Inventors: Michael D. Gallant, Eric C. Pearson
  • Patent number: 7324596
    Abstract: An apparatus generally having a first circuit and a second circuit for motion estimation is disclosed. The first circuit may be configured to (i) generate a first motion vector for a block at an integer-pel resolution and (ii) determine a single block size associated with the first motion vector. The second circuit may be configured to (i) generate a plurality of second motion vectors at a sub-pel resolution by searching proximate the first motion vector using the single block size and (ii) determine a motion vector for the block as a particular one of the second motion vectors best matching a plurality of reference samples.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: January 29, 2008
    Assignee: LSI Logic Corporation
    Inventors: Michael D. Gallant, Eric C. Pearson