Patents by Inventor No-Sang KWAK

No-Sang KWAK 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: 11687157
    Abstract: The present invention relates to a brain-computer interface system and a method for recognizing a conversation intention of a user using the same in addition to inferring the waveform of word sound intended by a user from an imagined speech brainwave associated with a word intended by a user, since the user can intuitively recognize the sentence he/she wants to speak through the imagined speech by classifying words that are most relevant to the imagined speech brainwave of the user in a database in which a word often used by the user or frequently used in a specific situation is stored and by generating a sentence intended by the user by recognizing the words classified in this way, it is possible to perform communication by only thoughts of the user.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: June 27, 2023
    Assignee: Korea University Research and Business Foundation
    Inventors: Seong-Whan Lee, Ji-Hoon Jeong, No-Sang Kwak, Seo-Hyun Lee
  • Publication number: 20220147145
    Abstract: The present invention relates to a brain-computer interface system and a method for recognizing a conversation intention of a user using the same in addition to inferring the waveform of word sound intended by a user from an imagined speech brainwave associated with a word intended by a user, since the user can intuitively recognize the sentence he/she wants to speak through the imagined speech by classifying words that are most relevant to the imagined speech brainwave of the user in a database in which a word often used by the user or frequently used in a specific situation is stored and by generating a sentence intended by the user by recognizing the words classified in this way, it is possible to perform communication by only thoughts of the user.
    Type: Application
    Filed: January 25, 2022
    Publication date: May 12, 2022
    Applicant: Korea University Research and Business Foundation
    Inventors: Seong-Whan LEE, Ji-Hoon JEONG, No-Sang KWAK, Seo-Hyun LEE
  • Patent number: 11269413
    Abstract: The present invention relates to a brain-computer interface system and a method for recognizing a conversation intention of a user using the same in addition to inferring the waveform of word sound intended by a user from an imagined speech brainwave associated with a word intended by a user, since the user can intuitively recognize the sentence he/she wants to speak through the imagined speech by classifying words that are most relevant to the imagined speech brainwave of the user in a database in which a word often used by the user or frequently used in a specific situation is stored and by generating a sentence intended by the user by recognizing the words classified in this way, it is possible to perform communication by only thoughts of the user.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: March 8, 2022
    Assignee: Korea University Research and Business Foundation
    Inventors: Seong-Whan Lee, Ji-Hoon Jeong, No-Sang Kwak, Seo-Hyun Lee
  • Patent number: 11191922
    Abstract: The method for inducing sleep by a sleep inducing system includes acquiring brain signals of a user as sleeping time passes; calculating a functional connectivity value between two channels for each frequency based on the acquired brain signals and performing brain network analysis; determining the stage of sleep of the user based on features of the analyzed brain network; determining a target frequency according to the determined stage of sleep and generating a binaural beat with which the brain signals of the user are induced to the target frequency; combining the generated binaural beat with ASMR information; providing the combined auditory stimulus information to the user; and determining whether the current stage of sleep of the user is maintained at an appropriate proportion with respect to total sleep time, determining whether or not to induce the next stage of sleep, and performing feedback according to the result of determination.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: December 7, 2021
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Seong-Whan Lee, Minji Lee, Chae Bin Song, No Sang Kwak
  • Patent number: 10795441
    Abstract: An exemplary embodiment of the present disclosure provides a method of recognizing, by a controller, an intention of a user who wears a head mounted display to which electroencephalogram electrodes are attached.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: October 6, 2020
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Seong-Whan Lee, No-Sang Kwak
  • Publication number: 20200142481
    Abstract: The present invention relates to a brain-computer interface system and a method for recognizing a conversation intention of a user using the same in addition to inferring the waveform of word sound intended by a user from an imagined speech brainwave associated with a word intended by a user, since the user can intuitively recognize the sentence he/she wants to speak through the imagined speech by classifying words that are most relevant to the imagined speech brainwave of the user in a database in which a word often used by the user or frequently used in a specific situation is stored and by generating a sentence intended by the user by recognizing the words classified in this way, it is possible to perform communication by only thoughts of the user.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 7, 2020
    Applicant: Korea University Research and Business Foundation
    Inventors: Seong-Whan LEE, Ji-Hoon JEONG, No-Sang KWAK, Seo-Hyun LEE
  • Publication number: 20190328996
    Abstract: The method for inducing sleep by a sleep inducing system includes acquiring brain signals of a user as sleeping time passes; calculating a functional connectivity value between two channels for each frequency based on the acquired brain signals and performing brain network analysis; determining the stage of sleep of the user based on features of the analyzed brain network; determining a target frequency according to the determined stage of sleep and generating a binaural beat with which the brain signals of the user are induced to the target frequency; combining the generated binaural beat with ASMR information; providing the combined auditory stimulus information to the user; and determining whether the current stage of sleep of the user is maintained at an appropriate proportion with respect to total sleep time, determining whether or not to induce the next stage of sleep, and performing feedback according to the result of determination.
    Type: Application
    Filed: April 30, 2019
    Publication date: October 31, 2019
    Inventors: Seong-Whan LEE, Minji LEE, Chae Bin SONG, No Sang KWAK
  • Publication number: 20190121431
    Abstract: An exemplary embodiment of the present disclosure provides a method of recognizing, by a controller, an intention of a user who wears a head mounted display to which electroencephalogram electrodes are attached.
    Type: Application
    Filed: August 30, 2018
    Publication date: April 25, 2019
    Inventors: Seong-Whan LEE, No-Sang KWAK