Patents by Inventor Byung Tak Lee

Byung Tak Lee 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: 20240061489
    Abstract: A system on chip (SoC) adjusts power of a memory through a handshake. The SoC includes a memory controller and a power manager. The memory controller is configured to control a memory. The power manager is configured to manage a supply power level of the memory. The memory controller is configured to output, to the power manager, a memory access level indicating a frequency of accesses to the memory. The power manager is configured to adjust the supply power level of the memory according to the memory access level.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 22, 2024
    Inventors: JIN-OOK SONG, YUN-JU KWON, DONG-SIK CHO, BYUNG-TAK LEE
  • Publication number: 20240062501
    Abstract: Provided are a method and apparatus capable of improving the feature extraction required for image stitching, the computational efficiency of homography calculation based on the feature extraction, and the performance of image stitching. The image stitching method according to the present invention includes: based on two images and additional information as needed, calculating an overlapping area in which two images overlap each other; masking an area in which the two images do not overlap each other based on information about the calculated overlapping area to provide masked images; extracting significant features to be used for image stitching from the masked images; calculating a homography to be used for image transformation based on the extracted features; and transforming and stitching the images based on the calculated homography.
    Type: Application
    Filed: June 22, 2023
    Publication date: February 22, 2024
    Inventors: Hyun Yong LEE, Nack Woo KIM, Byung-Tak LEE, JUNGI LEE
  • Patent number: 11836029
    Abstract: A system on chip (SoC) adjusts power of a memory through a handshake. The SoC includes a memory controller and a power manager. The memory controller is configured to control a memory. The power manager is configured to manage a supply power level of the memory. The memory controller is configured to output, to the power manager, a memory access level indicating a frequency of accesses to the memory. The power manager is configured to adjust the supply power level of the memory according to the memory access level.
    Type: Grant
    Filed: May 30, 2022
    Date of Patent: December 5, 2023
    Inventors: Jin-Ook Song, Yun-Ju Kwon, Dong-Sik Cho, Byung-Tak Lee
  • Patent number: 11789956
    Abstract: Provided is a method of extracting a mediator variable and a mediation influence from a multivariate set. The method includes: receiving a database in which a set of N multiple variables (N is a natural number) including at least one of discrete time series data or continuous time series data is stored; selecting a test variable set including an independent variable, a dependent variable, and a mediator variable from the database in which the multivariate set is stored; determining the mediator variable using transfer entropy and conditional transfer entropy for the selected test variable set; and calculating a mediation influence of the determined mediator variable, wherein the mediation influence is separately calculated as an individual causal influence of the mediator variable and a group causal influence of mediator variables.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: October 17, 2023
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yu Min Hwang, Byung Tak Lee
  • Publication number: 20220291737
    Abstract: A system on chip (SoC) adjusts power of a memory through a handshake. The SoC includes a memory controller and a power manager. The memory controller is configured to control a memory. The power manager is configured to manage a supply power level of the memory. The memory controller is configured to output, to the power manager, a memory access level indicating a frequency of accesses to the memory. The power manager is configured to adjust the supply power level of the memory according to the memory access level.
    Type: Application
    Filed: May 30, 2022
    Publication date: September 15, 2022
    Inventors: JIN-OOK SONG, YUN-JU KWON, DONG-SIK CHO, BYUNG-TAK LEE
  • Publication number: 20220261401
    Abstract: Provided is a method of extracting a mediator variable and a mediation influence from a multivariate set. The method includes: receiving a database in which a set of N multiple variables (N is a natural number) including at least one of discrete time series data or continuous time series data is stored; selecting a test variable set including an independent variable, a dependent variable, and a mediator variable from the database in which the multivariate set is stored; determining the mediator variable using transfer entropy and conditional transfer entropy for the selected test variable set; and calculating a mediation influence of the determined mediator variable, wherein the mediation influence is separately calculated as an individual causal influence of the mediator variable and a group causal influence of mediator variables.
    Type: Application
    Filed: September 29, 2021
    Publication date: August 18, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yu Min HWANG, Byung Tak LEE
  • Patent number: 11347292
    Abstract: A system on chip (SoC) adjusts power of a memory through a handshake. The SoC includes a memory controller and a power manager. The memory controller is configured to control a memory. The power manager is configured to manage a supply power level of the memory. The memory controller is configured to output, to the power manager, a memory access level indicating a frequency of accesses to the memory. The power manager is configured to adjust the supply power level of the memory according to the memory access level.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: May 31, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Ook Song, Yun-Ju Kwon, Dong-Sik Cho, Byung-Tak Lee
  • Publication number: 20220156513
    Abstract: Provided is a method of localizing an anomaly in a target image. The method includes training a reconstruction model using a normal image, deriving a reconstructed image by applying a target image, which is subject to detection, to the trained reconstruction model, generating an anomaly map on the basis of a result of comparing the reconstructed image and the target image, and localizing an anomaly through the generated anomaly map.
    Type: Application
    Filed: March 3, 2021
    Publication date: May 19, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hyun Yong LEE, Nack Woo KIM, Sang Jun PARK, Byung Tak LEE, Jun Gi LEE
  • Patent number: 11216399
    Abstract: An application processor includes a system bus, a host processor, a voice trigger system and an audio subsystem that are electrically connected to the system bus. The voice trigger system performs a voice trigger operation and issues a trigger event based on a trigger input signal that is provided through a trigger interface. The audio subsystem includes an audio interface and processes audio streams through the audio interface. The voice trigger system is disposed in an always-powered domain where power is supplied in both of an active mode and a standby mode. The host processor and the audio subsystem are disposed in a power-save domain where power is blocked in the standby mode. The host processor launches into the active mode when the voice trigger system issues the trigger event.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: January 4, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-Kyu Kim, Byung-Tak Lee
  • Publication number: 20210208535
    Abstract: Provided are a system and method for digital holographic imaging which are not affected by external vibrations. The system for digital holographic imaging includes a light source and optical system section configured to split generated beams and including a sample through which the beams pass, a lens, and a grating disposed behind the lens; an object signal acquisition section configured to receive the split beams and acquire an interference signal; and an image processor configured to acquire a three-dimensional (3D) image of an object by using the acquired interference signal.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 8, 2021
    Inventors: Gi Hyeon MIN, Keo Sik KIM, Hyun Seo KANG, Kye Eun KIM, Sung Chang KIM, Ji Hyoung RYU, Si Woong PARK, Hyoung Jun PARK, Dong Hoon SON, Chan Il YEO, Dong Soo LEE, Byung Tak LEE, Young Soon HEO
  • Publication number: 20210192296
    Abstract: A data de-identification method and an apparatus performing the data de-identification method are disclosed. The data de-identification method includes receiving identification data including a plurality of input feature vectors and generating a graph neural network (GNN) model including a plurality of nodes each having a value corresponding to each of the input feature vectors, determining a de-identification vector to which a correlation between the nodes is applied from the input feature vectors through the GNN model, and extracting an output feature vector by grouping values in each of the input feature vectors using the GNN model.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 24, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Nack Woo KIM, Byung-Tak LEE, Jungi LEE, Hyun Yong LEE
  • Patent number: 11009830
    Abstract: A hologram image acquiring apparatus includes a linear polarizer that filters incident light reflected by an object into a polarized component of a specific angle; a spherical lens that partially converts light that is incident through the linear polarizer to a spherical waveform; and a phase shifter that converts a part of the light incident through the spherical lens to a plane waveform having a respective phase per pixel unit.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 18, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Mun Seob Lee, Gi Hyeon Min, Byung-Tak Lee, Seihyoung Lee, Dongsoo Lee
  • Publication number: 20200379932
    Abstract: An application processor includes a system bus, a host processor, a voice trigger system and an audio subsystem that are electrically connected to the system bus. The voice trigger system performs a voice trigger operation and issues a trigger event based on a trigger input signal that is provided through a trigger interface. The audio subsystem includes an audio interface and processes audio streams through the audio interface. The voice trigger system is disposed in an always-powered domain where power is supplied in both of an active mode and a standby mode. The host processor and the audio subsystem are disposed in a power-save domain where power is blocked in the standby mode. The host processor launches into the active mode when the voice trigger system issues the trigger event.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 3, 2020
    Applicant: SAMSUNG ELECTRONICS CO, LTD
    Inventors: Sun-Kyu KIM, Byung-Tak LEE
  • Patent number: 10754804
    Abstract: An application processor includes a system bus, a host processor, a voice trigger system and an audio subsystem that are electrically connected to the system bus. The voice trigger system performs a voice trigger operation and issues a trigger event based on a trigger input signal that is provided through a trigger interface. The audio subsystem processes audio streams through an audio interface of the audio subsystem.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: August 25, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-Kyu Kim, Byung-Tak Lee
  • Patent number: 10674077
    Abstract: A mixed reality content providing apparatus is disclosed. The mixed reality content providing apparatus may recognize an OOI included in a 360-degree VR image to generate metadata of the OOI and may provide a user with mixed reality content where the metadata is overlaid on the 360-degree VR image.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: June 2, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Nack Woo Kim, Byung Tak Lee, Sei Hyoung Lee, Hyun Yong Lee, Hyung Ok Lee, Young Sun Kim
  • Publication number: 20200081515
    Abstract: A system on chip (SoC) adjusts power of a memory through a handshake. The SoC includes a memory controller and a power manager. The memory controller is configured to control a memory. The power manager is configured to manage a supply power level of the memory. The memory controller is configured to output, to the power manager, a memory access level indicating a frequency of accesses to the memory. The power manager is configured to adjust the supply power level of the memory according to the memory access level.
    Type: Application
    Filed: October 31, 2019
    Publication date: March 12, 2020
    Inventors: JIN-OOK SONG, YUN-JU KWON, DONG-SIK CHO, BYUNG-TAK LEE
  • Patent number: 10587265
    Abstract: Provided are a semiconductor device and a semiconductor system. A semiconductor device includes a hardware auto clock gating (HWACG) logic configured to provide clock gating of an intellectual property (IP) block; and a memory power controller configured to perform power gating of a memory electrically connected with the IP block, based on the HWACG logic providing the clock gating for the IP block. The HWACG logic includes a first clock source configured to provide a first clock signal; a second clock source configured to receive the first clock signal provided by the first clock source, and provide a second clock signal to the IP block; a first clock control circuit configured to control the first clock source; and a second clock control circuit configured to transmit a clock request to the first clock control circuit, and control the second clock source, based on an operation state of the IP block.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: March 10, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoo Seok Shon, Sang Woo Kim, Byung Tak Lee, Yun Ju Kwon, Joon-Woo Cho
  • Patent number: 10481668
    Abstract: A system on chip (SoC) adjusts power of a memory through a handshake. The SoC includes a memory controller and a power manager. The memory controller is configured to control a memory. The power manager is configured to manage a supply power level of the memory. The memory controller is configured to output, to the power manager, a memory access level indicating a frequency of accesses to the memory. The power manager is configured to adjust the supply power level of the memory according to the memory access level.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: November 19, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Ook Song, Yun-Ju Kwon, Dong-Sik Cho, Byung-Tak Lee
  • Patent number: 10478091
    Abstract: Provided is a micro robot position detection device. The device includes a micro robot position detection unit that uses a micro robot control parameter to filter a reflected signal of an ultra wide-band impulse radar signal emitted to a micro robot to extract, as a micro robot signal, a natural oscillating frequency signal generated when the micro robot is driven through control of external electromagnetic field, and analyzes the micro robot signal based on a transmission and reception parameter of the ultra wide-band impulse radar signal to calculate position information for the micro robot. Also, the device may further include an image matching unit that receives position information for the micro robot and performs position correction on the received position information based on pre-stored reference image data and the image data.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: November 19, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hong Yeon Yu, Nac Woo Kim, Sim-Kwon Yoon, Byung-Tak Lee, Young Sun Kim
  • Patent number: 10462489
    Abstract: There are provided an image processing device and a processing method thereof. The image processing method includes obtaining an interference signal using a sample beam and a reference beam, transforming the interference signal by using a numerical signal processing method or an intensity mixing method to generate a transformed interference signal, and obtaining a three-dimensional (3D) phase image by using the interference signal and the transformed interference signal.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: October 29, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gi Hyeon Min, Nack Woo Kim, Mun Seob Lee, Byung-Tak Lee, Young Sun Kim