Patents by Inventor Kwan Kin Truong

Kwan Kin Truong 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).

  • Publication number: 20230353680
    Abstract: A speakerphone system is shared with multiple participant devices of participants in a physical meeting that are using a web conferencing service. An active speaker is identified from the participants. The participant device of the active speaker is switched, such that the speakerphone system receives and renders audio of the active speaker. Video of the participant device of the active speaker is enabled, such that the web conferencing service displays the video to the participant devices.
    Type: Application
    Filed: April 30, 2022
    Publication date: November 2, 2023
    Applicant: Plantronics, Inc.
    Inventors: Peter L. Chu, Yibo Liu, Kwan Kin Truong, Hua Chen, Xiangdong Wang
  • Publication number: 20230337003
    Abstract: Pairing two or more network devices in the same room or area is performed. Unique signature or speaker identification data of a user's voice is provided by the two or more network devices. The unique signature or speaker identification data provided by each of the two or more network devices is compared with one another and determined received at the same time. If unique signature or speaker identification data provided by each of the two or more network devices are the same and received at the same time, then pairing information is provided to the two more network devices to allow pairing.
    Type: Application
    Filed: April 19, 2022
    Publication date: October 19, 2023
    Applicant: Plantronics, Inc.
    Inventors: Peter L. Chu, Yibo Liu, Kwan Kin Truong, Hua Chen, Daniel Jochelson
  • Patent number: 11776520
    Abstract: A method for hybrid noise suppression includes receiving a processed audio signal from an audio device. The processed audio signal results from a partial audio processing performed on a noisy audio input signal. The method further includes predicting a noise suppression parameter using a neural network model operating on the processed audio signal and generating a noise-suppressed audio signal from the processed audio signal, using the noise suppression parameter. The method further includes generating a noise-suppressed audio output signal from the noise-suppressed audio signal using an additional audio processing and outputting the noise-suppressed audio output signal.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: October 3, 2023
    Assignee: Plantronics, Inc.
    Inventors: Kwan Kin Truong, Jacob T. Meyberg Guzman, Peter L. Chu
  • Patent number: 11587575
    Abstract: A method for hybrid noise suppression. The method involves obtaining a noisy audio input signal, generating a noise-suppressed audio output signal by performing a combination of a noise spectrum estimate-based noise suppression and a machine learning-based noise suppression, and outputting the noise-suppressed audio output signal.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: February 21, 2023
    Assignee: PLANTRONICS, INC.
    Inventors: Peter L. Chu, Kwan Kin Truong
  • Publication number: 20230015161
    Abstract: A method for hybrid noise suppression includes receiving a processed audio signal from an audio device. The processed audio signal results from a partial audio processing performed on a noisy audio input signal. The method further includes predicting a noise suppression parameter using a neural network model operating on the processed audio signal and generating a noise-suppressed audio signal from the processed audio signal, using the noise suppression parameter. The method further includes generating a noise-suppressed audio output signal from the noise-suppressed audio signal using an additional audio processing and outputting the noise-suppressed audio output signal.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 19, 2023
    Applicant: Plantronics, Inc.
    Inventors: Kwan Kin Truong, Jacob T. Meyberg Guzman, Peter L. Chu
  • Patent number: 11475869
    Abstract: A method for hybrid noise suppression involves receiving a first processed audio signal and a second processed audio signal from an audio device. The first processed audio signal results from a comprehensive audio processing including a noise spectrum estimate-based noise suppression performed on a noisy audio input signal obtained by the audio device. The second processed signal results from a partial audio processing excluding the noise spectrum estimate-based noise suppression performed on the noisy audio input signal. The method further involves temporally aligning the second processed audio signal with the first processed audio signal, predicting a noise suppression parameter using a neural network model operating on the second processed audio signal after the temporal alignment, generating a noise-suppressed audio output signal from the first processed audio signal after the temporal alignment using the noise suppression parameter, and outputting the noise-suppressed audio output signal.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: October 18, 2022
    Assignee: Plantronics, Inc.
    Inventors: Kwan Kin Truong, Jacob T. Meyberg Guzman, Peter L. Chu
  • Publication number: 20220262336
    Abstract: A method for hybrid noise suppression involves receiving a first processed audio signal and a second processed audio signal from an audio device. The first processed audio signal results from a comprehensive audio processing including a noise spectrum estimate-based noise suppression performed on a noisy audio input signal obtained by the audio device. The second processed signal results from a partial audio processing excluding the noise spectrum estimate-based noise suppression performed on the noisy audio input signal. The method further involves temporally aligning the second processed audio signal with the first processed audio signal, predicting a noise suppression parameter using a neural network model operating on the second processed audio signal after the temporal alignment, generating a noise-suppressed audio output signal from the first processed audio signal after the temporal alignment using the noise suppression parameter, and outputting the noise-suppressed audio output signal.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 18, 2022
    Applicant: Plantronics, Inc.
    Inventors: Kwan Kin Truong, Jacob T. Meyberg Guzman, Peter L. Chu
  • Publication number: 20210110840
    Abstract: A method for hybrid noise suppression. The method involves obtaining a noisy audio input signal, generating a noise-suppressed audio output signal by performing a combination of a noise spectrum estimate-based noise suppression and a machine learning-based noise suppression, and outputting the noise-suppressed audio output signal.
    Type: Application
    Filed: September 18, 2020
    Publication date: April 15, 2021
    Applicant: Plantronics, Inc.
    Inventors: Peter L. Chu, Kwan Kin Truong
  • Publication number: 20100166200
    Abstract: A method and apparatus for detecting a singing frequency in a signal processing system using two neural-networks is disclosed. The first one (a hit neural network) monitors the maximum spectral peak FFT bin as it changes with time. The second one (change neural network) monitors the monotonic increasing behavior. The inputs to the neural-networks are the maximum spectral magnitude bin and its rate of change in time. The output is an indication whether howling is likely to occur and the corresponding singing frequency. Once the singing frequency is identified, it can be suppressed using any one of many available techniques such as notch filters. Several improvements of the base method or apparatus are also disclosed, where additional neural networks are used to detect more than one singing frequency.
    Type: Application
    Filed: March 11, 2010
    Publication date: July 1, 2010
    Applicant: POLYCOM, INC.
    Inventors: Kwan Kin Truong, James Steven Joiner
  • Patent number: 7742608
    Abstract: A method and apparatus for detecting a singing frequency in a signal processing system using two neural-networks is disclosed. The first one (a hit neural network) monitors the maximum spectral peak FFT bin as it changes with time. The second one (change neural network) monitors the monotonic increasing behavior. The inputs to the neural-networks are the maximum spectral magnitude bin and its rate of change in time. The output is an indication whether howling is likely to occur and the corresponding singing frequency. Once the singing frequency is identified, it can be suppressed using any one of many available techniques such as notch filters. Several improvements of the base method or apparatus are also disclosed, where additional neural networks are used to detect more than one singing frequency.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: June 22, 2010
    Assignee: Polycom, Inc.
    Inventors: Kwan Kin Truong, James Steven Joiner