Patents by Inventor Sarangarajan Parthasarathy

Sarangarajan Parthasarathy 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: 9058810
    Abstract: Speech recognition models are dynamically re-configurable based on user information, application information, background information such as background noise and transducer information such as transducer response characteristics to provide users with alternate input modes to keyboard text entry. Word recognition lattices are generated for each data field of an application and dynamically concatenated into a single word recognition lattice. A language model is applied to the concatenated word recognition lattice to determine the relationships between the word recognition lattices and repeated until the generated word recognition lattices are acceptable or differ from a predetermined value only by a threshold amount. These techniques of dynamic re-configurable speech recognition provide for deployment of speech recognition on small devices such as mobile phones and personal digital assistants as well environments such as office, home or vehicle while maintaining the accuracy of the speech recognition.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: June 16, 2015
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Bojana Gajic, Shrikanth Sambasivan Narayanan, Sarangarajan Parthasarathy, Richard Cameron Rose, Aaron Edward Rosenberg
  • Publication number: 20150088510
    Abstract: A method, apparatus and machine-readable medium are provided. A phonotactic grammar is utilized to perform speech recognition on received speech and to generate a phoneme lattice. A document shortlist is generated based on using the phoneme lattice to query an index. A grammar is generated from the document shortlist. Data for each of at least one input field is identified based on the received speech and the generated grammar.
    Type: Application
    Filed: December 4, 2014
    Publication date: March 26, 2015
    Inventors: Cyril Georges Luc ALLAUZEN, Sarangarajan PARTHASARATHY
  • Patent number: 8924212
    Abstract: A method, apparatus and machine-readable medium are provided. A phonotactic grammar is utilized to perform speech recognition on received speech and to generate a phoneme lattice. A document shortlist is generated based on using the phoneme lattice to query an index. A grammar is generated from the document shortlist. Data for each of at least one input field is identified based on the received speech and the generated grammar.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: December 30, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Cyril Georges Luc Allauzen, Sarangarajan Parthasarathy
  • Publication number: 20140207459
    Abstract: A system and method of updating automatic speech recognition parameters on a mobile device are disclosed. The method comprises storing user account-specific adaptation data associated with ASR on a computing device associated with a wireless network, generating new ASR adaptation parameters based on transmitted information from the mobile device when a communication channel between the computing device and the mobile device becomes available and transmitting the new ASR adaptation data to the mobile device when a communication channel between the computing device and the mobile device becomes available. The new ASR adaptation data on the mobile device more accurately recognizes user utterances.
    Type: Application
    Filed: March 26, 2014
    Publication date: July 24, 2014
    Applicant: AT&T Intellectual Property II, L.P.
    Inventors: Sarangarajan Parthasarathy, Richard Cameron Rose
  • Patent number: 8750464
    Abstract: The invention provides a system and method for indexing and organizing voice mail message by the speaker of the message. One or more speaker models are created from voice mail messages received. As additional messages are left, each of the new messages are compared with existing speaker models to determine the identity of the callers of each of the new messages. The voice mail messages are organized within a user's mailbox by caller. Unknown callers may be identified and tagged by the user and then used to create new speaker models and/or update existing speaker models.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: June 10, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Julia Hirschberg, Sarangarajan Parthasarathy, Aaron Edward Rosenberg, Stephen Whittaker
  • Patent number: 8688444
    Abstract: A system and method of updating automatic speech recognition parameters on a mobile device are disclosed. The method comprises storing user account-specific adaptation data associated with ASR on a computing device associated with a wireless network, generating new ASR adaptation parameters based on transmitted information from the mobile device when a communication channel between the computing device and the mobile device becomes available and transmitting the new ASR adaptation data to the mobile device when a communication channel between the computing device and the mobile device becomes available. The new ASR adaptation data on the mobile device more accurately recognizes user utterances.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: April 1, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Sarangarajan Parthasarathy, Richard Cameron Rose
  • Patent number: 8571861
    Abstract: An automatic speech recognition (ASR) system and method is provided for controlling the recognition of speech utterances generated by an end user operating a communications device. The ASR system and method can be used with a mobile device that is used in a communications network. The ASR system can be used for ASR of speech utterances input into a mobile device, to perform compensating techniques using at least one characteristic and for updating an ASR speech recognizer associated with the ASR system by determined and using a background noise value and a distortion value that is based on the features of the mobile device. The ASR system can be used to augment a limited data input capability of a mobile device, for example, caused by limited input devices physically located on the mobile device.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: October 29, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Richard C. Rose, Sarangarajan Parthasarathy, Aaron Edward Rosenberg, Shrikanth Sambasivan Narayanan
  • Patent number: 8532995
    Abstract: A method, system and machine-readable medium are provided. Speech input is received at a speech recognition component and recognized output is produced. A common dialog cue from the received speech input or input from a second source is recognized. An action is performed corresponding to the recognized common dialog cue. The performed action includes sending a communication from the speech recognition component to the speech generation component while bypassing a dialog component.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: September 10, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Vincent J. Goffin, Sarangarajan Parthasarathy
  • Publication number: 20130158980
    Abstract: Techniques are described herein that are capable of suggesting intent frame(s) for user request(s). For instance, the intent frame(s) may be suggested to elicit a request from a user. An intent frame is a natural language phrase (e.g., a sentence) that includes at least one carrier phrase and at least one slot. A slot in an intent frame is a placeholder that is identified as being replaceable by one or more words that identify an entity and/or an action to indicate an intent of the user. A carrier phrase in an intent frame includes one or more words that suggest a type of entity and/or action that is to be identified by the one or more words that may replace the corresponding slot. In accordance with these techniques, the intent frame(s) are suggested in response to determining that natural language functionality of a processing system is activated.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 20, 2013
    Applicant: MICROSOFT CORPORATION
    Inventors: Shane J. Landry, Anne K. Sullivan, Lisa J. Stifelman, Adam D. Elman, Larry Paul Heck, Sarangarajan Parthasarathy
  • Patent number: 8346539
    Abstract: The invention provides a system and method for indexing and organizing voice mail message by the speaker of the message. One or more speaker models are created from voice mail messages received. As additional messages are left, each of the new messages are compared with existing speaker models to determine the identity of the callers of each of the new messages. The voice mail messages are organized within a user's mailbox by caller. Unknown callers may be identified and tagged by the user and then used to create new speaker models and/or update existing speaker models.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: January 1, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Julia Hirschberg, Sarangarajan Parthasarathy, Aaron Edward Rosenberg, Stephen Whittaker
  • Publication number: 20120290290
    Abstract: Sentence simplification may be provided. A spoken phrase may be received and converted to a text phrase. An intent associated with the text phrase may be identified. The text phrase may then be reformatted according to the identified intent and a task may be performed according to the reformatted text phrase.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 15, 2012
    Applicant: Microsoft Corporation
    Inventors: Gokhan Tur, Dilek Hakkani-Tur, Larry Paul Heck, Sarangarajan Parthasarathy
  • Patent number: 8296138
    Abstract: A system and method of updating automatic speech recognition parameters on a mobile device are disclosed. The method comprises storing user account-specific adaptation data associated with ASR on a computing device associated with a wireless network, generating new ASR adaptation parameters based on transmitted information from the mobile device when a communication channel between the computing device and the mobile device becomes available and transmitting the new ASR adaptation data to the mobile device when a communication channel between the computing device and the mobile device becomes available. The new ASR adaptation data on the mobile device more accurately recognizes user utterances.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: October 23, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Sarangarajan Parthasarathy, Richard Cameron Rose
  • Publication number: 20120232892
    Abstract: A method, system and machine-readable medium are provided. Speech input is received at a speech recognition component and recognized output is produced. A common dialog cue from the received speech input or input from a second source is recognized. An action is performed corresponding to the recognized common dialog cue. The performed action includes sending a communication from the speech recognition component to the speech generation component while bypassing a dialog component.
    Type: Application
    Filed: May 21, 2012
    Publication date: September 13, 2012
    Applicant: AT&T Intellectual Property II, L.P.
    Inventors: Vincent J. Goffin, Sarangarajan Parthasarathy
  • Patent number: 8229747
    Abstract: A system and method for non-speech input or keypad-aided word and spelling recognition is disclosed. The method includes generating an unweighted grammar, selecting a database of words, generating a weighted grammar using the unweighted grammar and a statistical letter model trained on the database of words, receiving speech from a user after receiving the non-speech input and after generating the weighted grammar, and performing automatic speech recognition on the speech and non-speech input using the weighted grammar. If a confidence is below a predetermined level, then the method includes receiving non-speech input from the user, disambiguating possible spellings by generating a letter lattice based on a user input modality, and constraining the letter lattice and generating a new letter string of possible word spellings until a letter string is correctly recognized.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: July 24, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventor: Sarangarajan Parthasarathy
  • Publication number: 20120185237
    Abstract: Speech recognition models are dynamically re-configurable based on user information, application information, background information such as background noise and transducer information such as transducer response characteristics to provide users with alternate input modes to keyboard text entry. Word recognition lattices are generated for each data field of an application and dynamically concatenated into a single word recognition lattice. A language model is applied to the concatenated word recognition lattice to determine the relationships between the word recognition lattices and repeated until the generated word recognition lattices are acceptable or differ from a predetermined value only by a threshold amount. These techniques of dynamic re-configurable speech recognition provide for deployment of speech recognition on small devices such as mobile phones and personal digital assistants as well environments such as office, home or vehicle while maintaining the accuracy of the speech recognition.
    Type: Application
    Filed: March 26, 2012
    Publication date: July 19, 2012
    Applicant: AT&T Intellectual Property II, L.P.
    Inventors: Bojana GAJIC, Shrikanth Sambasivan Narayanan, Sarangarajan Parthasarathy, Richard Cameron Rose, Aaron Edward Rosenberg
  • Patent number: 8189783
    Abstract: Systems, methods, and programs for generating an authorized user profile for a mobile communication device, may sample an audio stream generated by the mobile communication device during communication and may store the audio sample. The systems methods and programs may determine an audio characteristic of the stored audio sample and may create the authorized user profile based on the audio characteristic. Systems, methods, and programs for detecting unauthorized use of a mobile communication device may sample an audio stream generated by the device during communication, may determine an audio characteristic of the audio sample, and may compare the determined audio characteristics of the sample with an authorized user profile.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: May 29, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Lee Begeja, Sarangarajan Parthasarathy, Benjamin J Stern
  • Patent number: 8185400
    Abstract: A method, system and machine-readable medium are provided. Speech input is received at a speech recognition component and recognized output is produced. A common dialog cue from the received speech input or input from a second source is recognized. An action is performed corresponding to the recognized common dialog cue. The performed action includes sending a communication from the speech recognition component to the speech generation component while bypassing a dialog component.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: May 22, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Vincent J. Goffin, Sarangarajan Parthasarathy
  • Patent number: 8145481
    Abstract: Speech recognition models are dynamically re-configurable based on user information, application information, background information such as background noise and transducer information such as transducer response characteristics to provide users with alternate input modes to keyboard text entry. Word recognition lattices are generated for each data field of an application and dynamically concatenated into a single word recognition lattice. A language model is applied to the concatenated word recognition lattice to determine the relationships between the word recognition lattices and repeated until the generated word recognition lattices are acceptable or differ from a predetermined value only by a threshold amount. These techniques of dynamic re-configurable speech recognition provide for deployment of speech recognition on small devices such as mobile phones and personal digital assistants as well environments such as office, home or vehicle while maintaining the accuracy of the speech recognition.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: March 27, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Bojana Gajic, Shrikanth Sambasivan Narayanan, Sarangarajan Parthasarathy, Richard Cameron Rose, Aaron Edward Rosenberg
  • Publication number: 20120072212
    Abstract: A system and method of updating automatic speech recognition parameters on a mobile device are disclosed. The method comprises storing user account-specific adaptation data associated with ASR on a computing device associated with a wireless network, generating new ASR adaptation parameters based on transmitted information from the mobile device when a communication channel between the computing device and the mobile device becomes available and transmitting the new ASR adaptation data to the mobile device when a communication channel between the computing device and the mobile device becomes available. The new ASR adaptation data on the mobile device more accurately recognizes user utterances.
    Type: Application
    Filed: November 22, 2011
    Publication date: March 22, 2012
    Applicant: AT&T Intellectual Property II, L.P.
    Inventors: Sarangarajan Parthasarathy, Richard Cameron Rose
  • Patent number: 8099284
    Abstract: A digital speech enabled middleware module is disclosed that facilitates interaction between a large number of client devices and network-based automatic speech recognition (ASR) resources. The module buffers feature vectors associated with speech received from the client devices when the number of client devices is greater than the available ASR resources. When an ASR decoder becomes available, the module transmits the feature vectors to the ASR decoder and a recognition result is returned.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: January 17, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Iker Arizmendi, Sarangarajan Parthasarathy, Richard Cameron Rose