Patents by Inventor Karthik Raghunathan

Karthik Raghunathan 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: 20240087573
    Abstract: This disclosure describes techniques for generating a conversation summary. The techniques may include processing at least one statement indication of the conversation to determine at least one statement that is a candidate highlight of the conversation. The techniques may further include applying linguistic filtering rules to the candidate highlight to determine the candidate highlight is an actual highlight. The techniques may further include generating the conversation summary including providing the actual highlight as at least a portion of the conversation summary.
    Type: Application
    Filed: November 14, 2023
    Publication date: March 14, 2024
    Inventors: Varsha Ravikumar Embar, Karthik Raghunathan
  • Patent number: 11908477
    Abstract: This disclosure describes techniques for generating a conversation summary. The techniques may include processing at least one statement indication of the conversation to determine at least one statement that is a candidate highlight of the conversation. The techniques may further include applying linguistic filtering rules to the candidate highlight to determine the candidate highlight is an actual highlight. The techniques may further include generating the conversation summary including providing the actual highlight as at least a portion of the conversation summary.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: February 20, 2024
    Inventors: Varsha Ravikumar Embar, Karthik Raghunathan
  • Publication number: 20230019978
    Abstract: Systems, methods, and computer-readable media for correcting transcriptions created through automatic speech recognition. A transcription of speech created using an automatic speech recognition system can be received. One or more domain-specific contexts associated with the speech can be identified and a text span that includes a mistranscribed entry can be recognized from the speech based on the one or more domain-specific contexts. Additionally, features can be extracted from the mistranscribed entry and the extracted features can be matched against an index of domain-specific entries to identify a correct entry of the mistranscribed entry. Subsequently, the transcription can be corrected by replacing with the mistranscribed entry with the correct entry.
    Type: Application
    Filed: September 22, 2022
    Publication date: January 19, 2023
    Inventors: Karthik Raghunathan, Arushi Raghuvanshi, Vijay Ramakrishnan Thimmaiyah, Lucien Serapio Carroll, Varsha Ravikumar Embar
  • Patent number: 11482213
    Abstract: Systems, methods, and computer-readable media for correcting transcriptions created through automatic speech recognition. A transcription of speech created using an automatic speech recognition system can be received. One or more domain-specific contexts associated with the speech can be identified and a text span that includes a mistranscribed entry can be recognized from the speech based on the one or more domain-specific contexts. Additionally, features can be extracted from the mistranscribed entry and the extracted features can be matched against an index of domain-specific entries to identify a correct entry of the mistranscribed entry. Subsequently, the transcription can be corrected by replacing with the mistranscribed entry with the correct entry.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: October 25, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Karthik Raghunathan, Arushi Raghuvanshi, Vijay Ramakrishnan Thimmaiyah, Lucien Serapio Carroll, Varsha Ravikumar Embar
  • Publication number: 20220068279
    Abstract: This disclosure describes techniques for generating a conversation summary. The techniques may include processing at least one statement indication of the conversation to determine at least one statement that is a candidate highlight of the conversation. The techniques may further include applying linguistic filtering rules to the candidate highlight to determine the candidate highlight is an actual highlight. The techniques may further include generating the conversation summary including providing the actual highlight as at least a portion of the conversation summary.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 3, 2022
    Inventors: Varsha Ravikumar Embar, Karthik Raghunathan
  • Publication number: 20200027445
    Abstract: Systems, methods, and computer-readable media for correcting transcriptions created through automatic speech recognition. A transcription of speech created using an automatic speech recognition system can be received. One or more domain-specific contexts associated with the speech can be identified and a text span that includes a mistranscribed entry can be recognized from the speech based on the one or more domain-specific contexts. Additionally, features can be extracted from the mistranscribed entry and the extracted features can be matched against an index of domain-specific entries to identify a correct entry of the mistranscribed entry. Subsequently, the transcription can be corrected by replacing with the mistranscribed entry with the correct entry.
    Type: Application
    Filed: January 29, 2019
    Publication date: January 23, 2020
    Inventors: Karthik Raghunathan, Arushi Raghuvanshi, Vijay Ramakrishnan Thimmaiyah, Lucien Serapio Carroll, Varsha Ravikumar Embar
  • Patent number: 10176219
    Abstract: Methods and systems are provided for providing alternative query suggestions. For example, a spoken natural language expression may be received and converted to a textual query by a speech recognition component. The spoken natural language expression may include one or more words, terms, and/or phrases. A phonetically confusable segment of the textual query may be identified by a classifier component. The classifier component may determine at least one alternative query based on identifying at least the phonetically confusable segment of the textual query. The classifier may further determine whether to suggest the at least one alternative query based on whether the at least one alternative query is sensical and/or useful. When it is determined to suggest the at least one alternative query, the at least one alternative query may be provided to and displayed on a user interface display.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: January 8, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Benoit Dumoulin, Ali Ahmadi, Sarangarajan Parthasarathy, Nick Craswell, Umut Ozertem, Milad Shokouhi, Karthik Raghunathan, Rosie Jones
  • Patent number: 9460081
    Abstract: Examples of the present disclosure describe generation of a multi-arc confusion network to improve, for example, an ability to return alternatives to output generated. A confusion network comprising token representations of lexicalized hypotheses and normalized hypotheses is generated. Each arc of the confusion network represents a token of a lexicalized hypothesis or a normalized hypothesis. The confusion network is transformed into a multi-arc confusion network, wherein the transforming comprising realigning at least one token of the confusion network to span multiple arcs of the confusion network. Other examples are also described.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: October 4, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Michael Levit, Umut Ozertem, Sarangarajan Parthasarathy, Padma Varadharajan, Karthik Raghunathan, Issac Alphonso
  • Publication number: 20160275071
    Abstract: Examples of the present disclosure describe generation of a multi-arc confusion network to improve, for example, an ability to return alternatives to output generated. A confusion network comprising token representations of lexicalized hypotheses and normalized hypotheses is generated. Each arc of the confusion network represents a token of a lexicalized hypothesis or a normalized hypothesis. The confusion network is transformed into a multi-arc confusion network, wherein the transforming comprising realigning at least one token of the confusion network to span multiple arcs of the confusion network. Other examples are also described.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 22, 2016
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Michael Levit, Umut Ozertem, Sarangarajan Parthasarathy, Padma Varadharajan, Karthik Raghunathan, Issac Alphonso
  • Publication number: 20160267128
    Abstract: Methods and systems are provided for providing alternative query suggestions. For example, a spoken natural language expression may be received and converted to a textual query by a speech recognition component. The spoken natural language expression may include one or more words, terms, and/or phrases. A phonetically confusable segment of the textual query may be identified by a classifier component. The classifier component may determine at least one alternative query based on identifying at least the phonetically confusable segment of the textual query. The classifier may further determine whether to suggest the at least one alternative query based on whether the at least one alternative query is sensical and/or useful. When it is determined to suggest the at least one alternative query, the at least one alternative query may be provided to and displayed on a user interface display.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 15, 2016
    Applicant: Microsoft Technology Licensing , LLC
    Inventors: Benoit Dumoulin, Ali Ahmadi, Sarangarajan Parthasarathy, Nick Craswell, Umut Ozertem, Milad Shokouhi, Karthik Raghunathan, Rosie Jones
  • Publication number: 20160217125
    Abstract: Examples of the present disclosure describe generation of a multi-arc confusion network to improve, for example, an ability to return alternatives to output generated. A confusion network comprising token representations of lexicalized hypotheses and normalized hypotheses is generated. Each arc of the confusion network represents a token of a lexicalized hypothesis or a normalized hypothesis. The confusion network is transformed into a multi-arc confusion network, wherein the transforming comprising realigning at least one token of the confusion network to span multiple arcs of the confusion network. Other examples are also described.
    Type: Application
    Filed: January 27, 2015
    Publication date: July 28, 2016
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Michael Levit, Umut Ozertem, Sarangarajan Parthasarathy, Padma Varadharajan, Karthik Raghunathan, Issac Alphonso
  • Patent number: 9384188
    Abstract: Examples of the present disclosure describe generation of a multi-arc confusion network to improve, for example, an ability to return alternatives to output generated. A confusion network comprising token representations of lexicalized hypotheses and normalized hypotheses is generated. Each arc of the confusion network represents a token of a lexicalized hypothesis or a normalized hypothesis. The confusion network is transformed into a multi-arc confusion network, wherein the transforming comprising realigning at least one token of the confusion network to span multiple arcs of the confusion network. Other examples are also described.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: July 5, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Michael Levit, Umut Ozertem, Sarangarajan Parthasarathy, Padma Varadharajan, Karthik Raghunathan, Issac Alphonso