Patents by Inventor Yuzong Liu

Yuzong Liu 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).

  • MULTILINGUAL WAKEWORD DETECTION
    Publication number: 20210398533
    Abstract: A system and method performs multilingual wakeword detection by determining a language corresponding to the wakeword. A first wakeword-detection component, which may execute using a digital-signal processor, determines that audio data includes a representation of the wakeword and determines a language corresponding to the wakeword. A second, more accurate wakeword-detection component may then process the audio data using the language to confirm that it includes the representation of the wakeword. The audio data may then be sent to a remote system for further processing.
    Type: Application
    Filed: June 28, 2021
    Publication date: December 23, 2021
    Inventors: Yixin Gao, Ming Sun, Jason Krone, Shiv Naga Prasad Vitaladevuni, Yuzong Liu
  • Multilingual wakeword detection
    Patent number: 11069353
    Abstract: A system and method performs multilingual wakeword detection by determining a language corresponding to the wakeword. A first wakeword-detection component, which may execute using a digital-signal processor, determines that audio data includes a representation of the wakeword and determines a language corresponding to the wakeword. A second, more accurate wakeword-detection component may then process the audio data using the language to confirm that it includes the representation of the wakeword. The audio data may then be sent to a remote system for further processing.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: July 20, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Yixin Gao, Ming Sun, Jason Krone, Shiv Naga Prasad Vitaladevuni, Yuzong Liu
  • Speech detection and speech recognition
    Patent number: 10923111
    Abstract: A system configured to recognize text represented by speech may determine that a first portion of audio data corresponds to speech from a first speaker and that a second portion of audio data corresponds to speech from the first speaker and a second speaker. Features of the first portion are compared to features of the second portion to determine a similarity therebetween. Based on this similarity, speech from the first speaker is distinguished from speech from the second speaker and text corresponding to speech from the first speaker is determined.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 16, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Xing Fan, I-Fan Chen, Yuzong Liu, Bjorn Hoffmeister, Yiming Wang, Tongfei Chen