Patents by Inventor Sangnam Choi

Sangnam Choi 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).

  • Patent number: 10714092
    Abstract: A sensor processing unit comprises a sensor processor. The sensor processor is configured to communicatively couple with a microphone. The sensor processor is configured to acquire, from the microphone, a sample captured by the microphone from an environment in which the microphone is disposed. The sensor processor is configured to perform music activity detection on the audio sample to detect for music within the audio sample. Responsive to detection of music within the audio sample, the sensor processor is configured to send a music detection signal to an external processor located external to the sensor processing unit, the music detection signal indicating that music has been detected in the environment.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: July 14, 2020
    Assignee: InvenSense, Inc.
    Inventors: William Kerry Keal, Ajay Kumar Dhanapalan, Sangnam Choi, Carlo Murgia, Eitan A. Medina, Taro Kimura
  • Publication number: 20190035401
    Abstract: A sensor processing unit comprises a microphone and a sensor processor. The sensor processor is coupled with the microphone. The sensor processor is configured to operate the microphone to capture an audio sample from an environment in which the microphone is disposed. The sensor processor is configured to perform music activity detection on the audio sample to detect for music within the audio sample. Responsive to detection of music within the audio sample, the sensor processor is configured to send a music detection signal to an external processor located external to the sensor processing unit, the music detection signal indicating that music has been detected in the environment.
    Type: Application
    Filed: October 1, 2018
    Publication date: January 31, 2019
    Applicant: InvenSense, Inc.
    Inventors: William Kerry KEAL, Ajay Kumar DHANAPALAN, Sangnam CHOI, Carlo MURGIA, Eitan A. MEDINA, Taro KIMURA
  • Patent number: 10089987
    Abstract: A sensor processing unit comprises a microphone and a sensor processor. The sensor processor is coupled with the microphone. The sensor processor is configured to operate the microphone to capture an audio sample from an environment in which the microphone is disposed. The sensor processor is configured to perform music activity detection on the audio sample to detect for music within the audio sample. Responsive to detection of music within the audio sample, the sensor processor is configured to send a music detection signal to an external processor located external to the sensor processing unit, the music detection signal indicating that music has been detected in the environment.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: October 2, 2018
    Assignee: InvenSense, Inc.
    Inventors: William Kerry Keal, Ajay Kumar Dhanapalan, Sangnam Choi, Carlo Murgia, Eitan A. Medina, Taro Kimura
  • Patent number: 9699554
    Abstract: The present technology substantially reduces undesirable effects of multi-level noise suppression processing by applying an adaptive signal equalization. A noise suppression system may apply different levels of noise suppression based on the (user-perceived) signal-to-noise-ratio (SNR) or based on an estimated echo return loss (ERL). The resulting high-frequency data attenuation may be counteracted by adapting the signal equalization. The present technology may be applied in both transmit and receive paths of communication devices. Intelligibility may particularly be improved under varying noise conditions, e.g., when a mobile device user is moving in and out of noisy environments.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: July 4, 2017
    Assignee: Knowles Electronics, LLC
    Inventors: Sangnam Choi, Chad Seguin
  • Publication number: 20170178681
    Abstract: A sensor processing unit comprises a microphone and a sensor processor. The sensor processor is coupled with the microphone. The sensor processor is configured to operate the microphone to capture an audio sample from an environment in which the microphone is disposed. The sensor processor is configured to perform music activity detection on the audio sample to detect for music within the audio sample. Responsive to detection of music within the audio sample, the sensor processor is configured to send a music detection signal to an external processor located external to the sensor processing unit, the music detection signal indicating that music has been detected in the environment.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 22, 2017
    Applicant: InvenSense, Inc.
    Inventors: William Kerry KEAL, Ajay Kumar DHANAPALAN, Sangnam CHOI, Carlo MURGIA, Eitan A. MEDINA, Taro KIMURA
  • Patent number: 8798290
    Abstract: The present technology minimizes undesirable effects of multi-level noise suppression processing by applying an adaptive equalization. A noise suppression system may apply different levels of noise suppression based on the (user-perceived) signal-to-noise-ratio (SNR). The resulting high-frequency data attenuation may be counteracted by adapting the signal equalization. The present technology may be applied in both transmit and receive paths of communication devices. Intelligibility may particularly be improved under varying noise conditions, e.g. when a cell phone user is moving in and out of noisy environments.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: August 5, 2014
    Assignee: Audience, Inc.
    Inventors: Sangnam Choi, Chad Seguin
  • Publication number: 20140105411
    Abstract: Systems and methods for providing karaoke recording and playback on mobile devices are provided. The mobile device may play music audio and associated video, and receive via one or more microphones a mix of a user voice, the music, and background noise. The mix is stored both in its original form and as processed to enhance voice and sound through noise suppression and other processing. Stored audio may be uploaded through a communications network to a cloud based computing environment for listening on other mobile devices. Selectable playing control and recording options may be provided. Audio cues may be determined during signal processing of the original acoustic sound and be stored on the mobile device. During playback of recorded audio and, optionally, associated video, the original acoustic sound, recorded cues, and user selectable optional processing may be used to remix during playback, while retaining the original recording.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 17, 2014
    Inventors: Peter Santos, Eric Skup, Carlo Murgia, Sangnam Choi, Tony Verma, Ludger Solbach