Patents by Inventor Anand Venkataraman

Anand Venkataraman 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: 7769593
    Abstract: In one embodiment, the present invention is a method and apparatus for active noise cancellation. In one embodiment, a method for recognizing user speech in an audio signal received by a media system (where the audio signal includes user speech and ambient audio output produced by the media system and/or other devices) includes canceling portions of the audio signal associated with the ambient audio output and applying speech recognition processing to an uncancelled remainder of the audio signal.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: August 3, 2010
    Assignee: SRI International
    Inventors: Anand Venkataraman, Venkata Ramana Rao Gadde, Martin Graciarena
  • Patent number: 7533020
    Abstract: A method and apparatus are provided for performing speech recognition using observable and meaningful relationships between words within a single utterance and using a structured data source as a source of constraints on the recognition process. Results from a first constrained speech recognition pass can be combined with information about the observable and meaningful word relationships to constrain or simplify subsequent recognition passes. This iterative process greatly reduces the search space required for each recognition pass, making the speech recognition process more efficient, faster and accurate.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: May 12, 2009
    Assignee: Nuance Communications, Inc.
    Inventors: James F. Arnold, Michael W. Frandsen, Anand Venkataraman, Douglas A. Bercow, Gregory K. Myers, David J. Israel, Venkata Ramana Rao Gadde, Horacio Franco, Harry Bratt
  • Publication number: 20080082326
    Abstract: In one embodiment, the present invention is a method and apparatus for active noise cancellation. In one embodiment, a method for recognizing user speech in an audio signal received by a media system (where the audio signal includes user speech and ambient audio output produced by the media system and/or other devices) includes canceling portions of the audio signal associated with the ambient audio output and applying speech recognition processing to an uncancelled remainder of the audio signal.
    Type: Application
    Filed: September 28, 2006
    Publication date: April 3, 2008
    Inventors: Anand Venkataraman, Venkata Ramana Rao Gadde, Martin Graciarena
  • Publication number: 20080010065
    Abstract: A method and apparatus for speaker recognition is provided. One embodiment of a method for determining whether a given speech signal is produced by an alleged speaker, where a plurality of statistical models (including at least one support vector machine) have been produced for the alleged speaker based on a previous speech signal received from the alleged speaker, includes receiving the given speech signal, the speech signal representing an utterance made by a speaker claiming to be the alleged speaker, scoring the given speech signal using at least two modeling systems, where at least one of the modeling systems is a support vector machine, combining scores produced by the modeling systems, with equal weights, to produce a final score, and determining, in accordance with the final score, whether the speaker is likely the alleged speaker.
    Type: Application
    Filed: June 5, 2007
    Publication date: January 10, 2008
    Inventors: Harry BRATT, Luciana Ferrer, Martin Graciarena, Sachin Kajarekar, Elizabeth Shriberg, Mustafa Sonmez, Andreas Stolcke, Gokhan Tur, Anand Venkataraman
  • Patent number: 7308404
    Abstract: A method and apparatus are provided for performing speech recognition using a dynamic vocabulary. Results from a preliminary speech recognition pass can be used to update or refine a language model in order to improve the accuracy of search results and to simplify subsequent recognition passes. This iterative process greatly reduces the number of alternative hypotheses produced during each speech recognition pass, as well as the time required to process subsequent passes, making the speech recognition process faster, more efficient and more accurate. The iterative process is characterized by the use of results from one or more data set queries, where the keys used to query the data set, as well as the queries themselves, are constructed in a manner that produces more effective language models for use in subsequent attempts at decoding a given speech signal.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: December 11, 2007
    Assignee: SRI International
    Inventors: Anand Venkataraman, Horacio E. Franco, Douglas A. Bercow
  • Publication number: 20070117627
    Abstract: In one embodiment, the invention is a method and system for a biometric similarity based game. In one embodiment, photographs of the game players are compared to a celebrity's photograph and the player whose photograph is most similar to that of the celebrity is deemed to be the winner. In another embodiment, voice samples of the players are compared to a celebrity's voice samples and the player whose voice-sample is most similar to that of the celebrity is deemed to be the winner.
    Type: Application
    Filed: September 25, 2006
    Publication date: May 24, 2007
    Inventors: Panini Raman, Anand Venkataraman
  • Publication number: 20060112812
    Abstract: In one embodiment, the present invention is a method and apparatus for adapting original musical tracks for karaoke use. In one embodiment, an original musical track is separated into vocal elements and non-vocal elements. The vocal elements are aligned with corresponding text transcriptions (e.g., text-based lyrics), and the aligned text-based lyrics are then displayed to a user while the non-vocal elements are simultaneously played in a manner that is synchronous with the display of the lyrics.
    Type: Application
    Filed: November 30, 2004
    Publication date: June 1, 2006
    Inventors: Anand Venkataraman, Victor Abrash, Harry Bratt, Venkata Gadde
  • Publication number: 20050234723
    Abstract: A method and apparatus are provided for performing speech recognition using observable and meaningful relationships between words within a single utterance and using a structured data source as a source of constraints on the recognition process. Results from a first constrained speech recognition pass can be combined with information about the observable and meaningful word relationships to constrain or simplify subsequent recognition passes. This iterative process greatly reduces the search space required for each recognition pass, making the speech recognition process more efficient, faster and accurate.
    Type: Application
    Filed: February 23, 2005
    Publication date: October 20, 2005
    Inventors: James Arnold, Michael Frandsen, Anand Venkataraman, Douglas Bercow, Gregory Myers, David Israel, Venkata Gadde, Horacio Franco, Harry Bratt
  • Publication number: 20050125224
    Abstract: A method and apparatus are provided for fusion of recognition results from multiple types of data sources. In one embodiment, the inventive method implementing a first processing technique to recognize at least a portion of terms contained in a first media source, implementing a second processing technique to recognize at least a portion of terms contained in a second media source that contains a different type of data than that contained in the first media source, and adapting the first processing technique based at least in part on results generated by the second processing technique.
    Type: Application
    Filed: November 8, 2004
    Publication date: June 9, 2005
    Inventors: Gregory Myers, Harry Bratt, Anand Venkataraman, Andreas Stolcke, Horacio Franco, Venkata Rao Gadde
  • Publication number: 20050055210
    Abstract: A method and apparatus are provided for performing speech recognition using a dynamic vocabulary. Results from a preliminary speech recognition pass can be used to update or refine a language model in order to improve the accuracy of search results and to simplify subsequent recognition passes. This iterative process greatly reduces the number of alternative hypotheses produced during each speech recognition pass, as well as the time required to process subsequent passes, making the speech recognition process faster, more efficient and more accurate. The iterative process is characterized by the use of results from one or more data set queries, where the keys used to query the data set, as well as the queries themselves, are constructed in a manner that produces more effective language models for use in subsequent attempts at decoding a given speech signal.
    Type: Application
    Filed: August 5, 2004
    Publication date: March 10, 2005
    Inventors: Anand Venkataraman, Horacio Franco, Douglas A. Bercow