Patents by Inventor Anirudh Raju

Anirudh Raju 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).

  • Speech processing optimizations based on microphone array
    Patent number: 11935525
    Abstract: Systems and methods for utilizing microphone array information for acoustic modeling are disclosed. Audio data may be received from a device having a microphone array configuration. Microphone configuration data may also be received that indicates the configuration of the microphone array. The microphone configuration data may be utilized as an input vector to an acoustic model, along with the audio data, to generate phoneme data. Additionally, the microphone configuration data may be utilized to train and/or generate acoustic models, select an acoustic model to perform speech recognition with, and/or to improve trigger sound detection.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: March 19, 2024
    Assignee: Amazon Technologies, Inc.
    Inventors: Shiva Kumar Sundaram, Minhua Wu, Anirudh Raju, Spyridon Matsoukas, Arindam Mandal, Kenichi Kumatani
  • SPEECH RECOGNITION USING DIALOG HISTORY
    Publication number: 20210312914
    Abstract: Described herein is a system for rescoring automatic speech recognition hypotheses for conversational devices that have multi-turn dialogs with a user. The system leverages dialog context by incorporating data related to past user utterances and data related to the system generated response corresponding to the past user utterance. Incorporation of this data improves recognition of a particular user utterance within the dialog.
    Type: Application
    Filed: June 7, 2021
    Publication date: October 7, 2021
    Inventors: Behnam Hedayatnia, Anirudh Raju, Ankur Gandhe, Chandra Prakash Khatri, Ariya Rastrow, Anushree Venkatesh, Arindam Mandal, Raefer Christopher Gabriel, Ahmad Shikib Mehri
  • Speech recognition using dialog history
    Patent number: 11043214
    Abstract: Described herein is a system for rescoring automatic speech recognition hypotheses for conversational devices that have multi-turn dialogs with a user. The system leverages dialog context by incorporating data related to past user utterances and data related to the system generated response corresponding to the past user utterance. Incorporation of this data improves recognition of a particular user utterance within the dialog.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 22, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Behnam Hedayatnia, Anirudh Raju, Ankur Gandhe, Chandra Prakash Khatri, Ariya Rastrow, Anushree Venkatesh, Arindam Mandal, Raefer Christopher Gabriel, Ahmad Shikib Mehri
  • Speech processing optimizations based on microphone array
    Patent number: 10679621
    Abstract: Systems and methods for utilizing microphone array information for acoustic modeling are disclosed. Audio data may be received from a device having a microphone array configuration. Microphone configuration data may also be received that indicates the configuration of the microphone array. The microphone configuration data may be utilized as an input vector to an acoustic model, along with the audio data, to generate phoneme data. Additionally, the microphone configuration data may be utilized to train and/or generate acoustic models, select an acoustic model to perform speech recognition with, and/or to improve trigger sound detection.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: June 9, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Shiva Kumar Sundaram, Minhua Wu, Anirudh Raju, Spyridon Matsoukas, Arindam Mandal, Kenichi Kumatani