Patents by Inventor Gabe Beddingfield

Gabe Beddingfield 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).

  • Signal rate synchronization for remote acoustic echo cancellation
    Patent number: 9966086
    Abstract: A system may be configured to interact with a user through speech using a first and second audio devices, where the first device produces audio and the second device captures audio. The second device may be configured to perform acoustic echo cancellation with respect to a microphone signal based on a reference signal provided by the first device. The reference and microphone signals may have the same nominal signal rates. However, the signal rates may drift from each other over time. In order to synchronize the rates of the signals, each of the devices maintains a signal index. The second device compares the values of the two signal indexes over time to determine rate differences between the reference and microphone signals and then corrects for the rate differences.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: May 8, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Kurt Wesley Piersol, Preethi Parasseri Narayanan, Robert Ayrapetian, Arnaud Jean-Louis Charton, Gabe Beddingfield, Michael Alan Pogue, Yuwen Su
  • Signal rate synchronization for remote acoustic echo cancellation
    Patent number: 9373318
    Abstract: A system may be configured to interact with a user through speech using a first and second audio devices, where the first device produces audio and the second device captures audio. The second device may be configured to perform acoustic echo cancellation with respect to a microphone signal based on a reference signal provided by the first device. The reference and microphone signals may have the same nominal signal rates. However, the signal rates may drift from each other over time. In order to synchronize the rates of the signals, each of the devices maintains a signal index. The second device compares the values of the two signal indexes over time to determine rate differences between the reference and microphone signals and then corrects for the rate differences.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: June 21, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Kurt Wesley Piersol, Preethi Parasseri Narayanan, Robert Ayrapetian, Arnaud Jean-Louis Charton, Gabe Beddingfield, Michael Alan Pogue, Yuwen Su