Patents by Inventor Regunathan Radhakrishnan

Regunathan Radhakrishnan 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: 10748555
    Abstract: Example embodiments disclosed herein relate to perception based multimedia processing. There is provided a method for processing multimedia data, the method includes automatically determining user perception on a segment of the multimedia data based on a plurality of clusters, the plurality of clusters obtained in association with predefined user perceptions and processing the segment of the multimedia data at least in part based on determined user perception on the segment. Corresponding system and computer program products are disclosed as well.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: August 18, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Claus Bauer, Lie Lu, Mingqing Hu, Jun Wang, Poppy Crum, Rhonda Wilson, Regunathan Radhakrishnan
  • Publication number: 20200012968
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for classifying user behavior as anomalous. One of the methods includes obtaining user behavior data representing behavior of a user in a subject system. An initial model is generated from training data, the initial model having first characteristic features of the training data. A resampling model is generated from the training data and from multiple instances of the first representation for a test time period. A difference between the initial model and the resampling model is computed. The user behavior in the test time period is classified as anomalous based on the difference between the initial model and the resampling model.
    Type: Application
    Filed: September 18, 2019
    Publication date: January 9, 2020
    Inventors: Jin Yu, Regunathan Radhakrishnan, Anirudh Kondaveeti
  • Publication number: 20190325894
    Abstract: Example embodiments disclosed herein relate to perception based multimedia processing. There is provided a method for processing multimedia data, the method includes automatically determining user perception on a segment of the multimedia data based on a plurality of clusters, the plurality of clusters obtained in association with predefined user perceptions and processing the segment of the multimedia data at least in part based on determined user perception on the segment. Corresponding system and computer program products are disclosed as well.
    Type: Application
    Filed: June 27, 2019
    Publication date: October 24, 2019
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Claus BAUER, Lie LU, Mingqing HU, Jun WANG, Poppy CRUM, Rhonda WILSON, Regunathan RADHAKRISHNAN
  • Patent number: 10430721
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for classifying user behavior as anomalous. One of the methods includes obtaining user behavior data representing behavior of a user in a subject system. An initial model is generated from training data, the initial model having first characteristic features of the training data. A resampling model is generated from the training data and from multiple instances of the first representation for a test time period. A difference between the initial model and the resampling model is computed. The user behavior in the test time period is classified as anomalous based on the difference between the initial model and the resampling model.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: October 1, 2019
    Assignee: Pivotal Software, Inc.
    Inventors: Jin Yu, Regunathan Radhakrishnan, Anirudh Kondaveeti
  • Publication number: 20190297379
    Abstract: A media fingerprint archive system generates and archives media fingerprints from second media content portions such as commercials. A downstream media measurement system can extract/derive query fingerprints from an incoming signal and query the media fingerprint archive system whether any of the query fingerprints matches any archived fingerprints. If so, the media measurement system can perform media measurements on a specific secondary media content portion from which the matched query fingerprint is derived. If not, the media measurement system can analyze media characteristics of a media content portion to determine whether the media content portion is a secondary media content portion and perform media measurement if needed to. The media measurement system may send fingerprints from an identified secondary media content portion to the media fingerprint archive system for storage.
    Type: Application
    Filed: June 13, 2019
    Publication date: September 26, 2019
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Michael GRANT, Regunathan RADHAKRISHNAN, Jeff Edwin CHANDLER, Stewart MURRIE, Michael G. BABBITT
  • Patent number: 10349125
    Abstract: A media fingerprint archive system generates and archives media fingerprints from second media content portions such as commercials. A downstream media measurement system can extract/derive query fingerprints from an incoming signal, and query the media fingerprint archive system whether any of the query fingerprints matches any archived fingerprints. If so, the media measurement system can perform media measurements on a specific secondary media content portion from which the matched query fingerprint is derived. If not, the media measurement system can analyze media characteristics of a media content portion to determine whether the media content portion is a secondary media content portion and perform media measurement if needed to. The media measurement system may send fingerprints from an identified secondary media content portion to the media fingerprint archive system for storage.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: July 9, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Michael Grant, Regunathan Radhakrishnan, Jeff Edwin Chandler, Stewart Murrie, Michael G. Babbitt
  • Patent number: 10339959
    Abstract: Example embodiments disclosed herein relate to perception based multimedia processing. There is provided a method for processing multimedia data, the method includes automatically determining user perception on a segment of the multimedia data based on a plurality of clusters, the plurality of clusters obtained in association with predefined user perceptions and processing the segment of the multimedia data at least in part based on determined user perception on the segment. Corresponding system and computer program products are disclosed as well.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: July 2, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Claus Bauer, Lie LU, Mingqing Hu, Jun Wang, Poppy Crum, Rhonda Wilson, Regunathan Radhakrishnan
  • Patent number: 10296534
    Abstract: Attributes are identified in media content. A classification value of the media content is computed based on the identified attributes. Thereafter, a fingerprint derived from the media content is stored or searched for based on the classification value of the media content.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: May 21, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Tianshi Gao, Regunathan Radhakrishnan, Wenyu Jiang, Claus Bauer
  • Patent number: 10142761
    Abstract: A method for creating a head-related impulse response (HRIR) for use in rendering audio for playback through headphones comprises receiving location parameters for a sound including azimuth, elevation, and range relative to a head of a listener, applying a spherical head model to the azimuth, elevation, and range input parameters to generate binaural HRIR values, computing a pinna model using the azimuth and elevation parameters to apply to the binaural HRIR values to pinna modeled HRIR values, computing a torso model using the azimuth and elevation parameters to apply to the pinna modeled HRIR values to generate pinna and torso modeled HRIR values, and computing a near-field model using the azimuth and range parameters to apply to the pinna and torso modeled HRIR values to generate pinna, torso and near-field modeled HRIR values.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: November 27, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: C. Phillip Brown, Matthew Fellers, Regunathan Radhakrishnan
  • Publication number: 20180068666
    Abstract: Techniques for adaptive processing of media data based on separate data specifying a state of the media data are provided. A device in a media processing chain may determine whether a type of media processing has already been performed on an input version of media data. If so, the device may adapt its processing of the media data to disable performing the type of media processing. If not, the device performs the type of media processing. The device may create a state of the media data specifying the type of media processing. The device may communicate the state of the media data and an output version of the media data to a recipient device in the media processing chain, for the purpose of supporting the recipient device's adaptive processing of the media data.
    Type: Application
    Filed: November 9, 2017
    Publication date: March 8, 2018
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Jeffrey RIEDMILLER, Regunathan RADHAKRISHNAN, Marvin PRIBADI, Farhad FARAHANI, Michael SMITHERS
  • Patent number: 9842596
    Abstract: Techniques for adaptive processing of media data based on separate data specifying a state of the media data are provided. A device in a media processing chain may determine whether a type of media processing has already been performed on an input version of media data. If so, the device may adapt its processing of the media data to disable performing the type of media processing. If not, the device performs the type of media processing. The device may create a state of the media data specifying the type of media processing. The device may communicate the state of the media data and an output version of the media data to a recipient device in the media processing chain, for the purpose of supporting the recipient device's adaptive processing of the media data.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: December 12, 2017
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Jeffrey Riedmiller, Regunathan Radhakrishnan, Marvin Pribadi, Farhad Farahani, Michael Smithers
  • Patent number: 9742554
    Abstract: Systems and methods for detecting a synchronization code word embedded in a plurality of frames of a signal are described. In one example embodiment, the synchronization code word contains “s” bits, embedded one bit per frame in “s” frames of an input signal. The method of detecting this synchronization code word includes: initiating a first segmentation procedure wherein “n” segments are defined in each signal frame of the input signal. A first correlation threshold value, which is based on the synchronization code word, is used to identify in the “n” segments, a first segment having the highest likelihood of containing at least a portion of the synchronization code word. The first segment is used to initiate a recursive detection procedure incorporating one or more additional segmentation procedures and one or more additional correlation threshold values, to detect the synchronization code word in a sub-divided portion of the first segment.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: August 22, 2017
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Regunathan Radhakrishnan
  • Publication number: 20170195721
    Abstract: A media fingerprint archive system generates and archives media fingerprints from second media content portions such as commercials. A downstream media measurement system can extract/derive query fingerprints from an incoming signal, and query the media fingerprint archive system whether any of the query fingerprints matches any archived fingerprints. If so, the media measurement system can perform media measurements on a specific secondary media content portion from which the matched query fingerprint is derived. If not, the media measurement system can analyze media characteristics of a media content portion to determine whether the media content portion is a secondary media content portion and perform media measurement if needed to. The media measurement system may send fingerprints from an identified secondary media content portion to the media fingerprint archive system for storage.
    Type: Application
    Filed: March 22, 2017
    Publication date: July 6, 2017
    Inventors: Michael GRANT, Regunathan RADHAKRISHNAN, Jeff Edwin CHANDLER, Stewart MURRIE, Michael G. BABBITT
  • Publication number: 20170133039
    Abstract: Example embodiments disclosed herein relate to perception based multimedia processing. There is provided a method for processing multimedia data, the method includes automatically determining user perception on a segment of the multimedia data based on a plurality of clusters, the plurality of clusters obtained in association with predefined user perceptions and processing the segment of the multimedia data at least in part based on determined user perception on the segment. Corresponding system and computer program products are disclosed as well.
    Type: Application
    Filed: June 24, 2015
    Publication date: May 11, 2017
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Claus BAUER, Lie LU, Mingqing HU, Jun WANG, Poppy CRUM, Rhonda WILSON, Regunathan RADHAKRISHNAN
  • Patent number: 9635417
    Abstract: A media fingerprint archive system generates and archives media fingerprints from second media content portions such as commercials. A downstream media measurement system can extract/derive query fingerprints from an incoming signal, and query the media fingerprint archive system whether any of the query fingerprints matches any archived fingerprints. If so, the media measurement system can perform media measurements on a specific secondary media content portion from which the matched query fingerprint is derived. If not, the media measurement system can analyze media characteristics of a media content portion to determine whether the media content portion is a secondary media content portion and perform media measurement if needed to. The media measurement system may send fingerprints from an identified secondary media content portion to the media fingerprint archive system for storage.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 25, 2017
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Michael Grant, Regunathan Radhakrishnan, Jeff Edwin Chandler, Stewart Murrie, Michael G. Babbitt
  • Publication number: 20170094440
    Abstract: A method for creating a head-related impulse response (HRIR) for use in rendering audio for playback through headphones comprises receiving location parameters for a sound including azimuth, elevation, and range relative to a head of a listener, applying a spherical head model to the azimuth, elevation, and range input parameters to generate binaural HRIR values, computing a pinna model using the azimuth and elevation parameters to apply to the binaural HRIR values to pinna modeled HRIR values, computing a torso model using the azimuth and elevation parameters to apply to the pinna modeled HRIR values to generate pinna and torso modeled HRIR values, and computing a near-field model using the azimuth and range parameters to apply to the pinna and torso modeled HRIR values to generate pinna, torso and near-field modeled HRIR values.
    Type: Application
    Filed: March 4, 2015
    Publication date: March 30, 2017
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: C. Phillip BROWN, Matthew FELLERS, Regunathan RADHAKRISHNAN
  • Patent number: 9569464
    Abstract: This document describes, among other things, a computer-implemented method. The method includes obtaining a structured data object that having a plurality of nodes that represent elements in the data object. One or more tables that define a table representation of the data object can be generated. The one or more tables can include a plurality of table entries that correspond to the plurality of nodes, respectively. For each of one or more first nodes from among the plurality of nodes, the method can include identifying information about one or more second nodes that are determined to be adjacent or otherwise related to the first node by performing window functions along two or more coordinate systems in the one or more tables. The window function can be centered on a particular table entry that corresponds to the first node of the data object.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: February 14, 2017
    Assignee: Pivotal Software, Inc.
    Inventors: Alexis Kohnstamm Crow, Sarah Joann Aerni, Hulya Emir-Farinas, Gautam Sakleshpur Muralidhar, Regunathan Radhakrishnan
  • Patent number: 9564139
    Abstract: A spread spectrum data hiding for audio signals is described. A set of pseudo-random noise sequences is added to an audio signal according to a data to be embedded. A masking curve is used to shape the added noise. A transient detection step can be used to control whether a shaped noise sequence is to be added or not. Embedded information is detected by first performing a whitening step and then performing a phase-only correlation with a same set of pseudo-random noise sequences. A detection method that is based on correlation of multiplexed noise sequences with a noise sequence embedded in the audio is also described.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: February 7, 2017
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Regunathan Radhakrishnan, Michael Smithers, David S. McGrath
  • Publication number: 20170032274
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for classifying user behavior as anomalous. One of the methods includes obtaining user behavior data representing behavior of a user in a subject system. An initial model is generated from training data, the initial model having first characteristic features of the training data. A resampling model is generated from the training data and from multiple instances of the first representation for a test time period. A difference between the initial model and the resampling model is computed. The user behavior in the test time period is classified as anomalous based on the difference between the initial model and the resampling model.
    Type: Application
    Filed: July 27, 2015
    Publication date: February 2, 2017
    Inventors: Jin Yu, Regunathan Radhakrishnan, Anirudh Kondaveeti
  • Patent number: 9552845
    Abstract: Metadata comprising a set of gain values for creating a dominance effect is automatically generated. Automatically generating the metadata includes receiving multiple audio streams and a dominance criterion for at least one of the audio streams. A set of gains is computed for one or more audio streams based on the dominance criterion for the at least one audio stream and metadata is generated with the set of gains.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: January 24, 2017
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Jeffrey C. Riedmiller, Regunathan Radhakrishnan, Hannes Muesch