Patents by Inventor Tongfei Chen

Tongfei Chen 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 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