Patents by Inventor Duck Joo Lee

Duck Joo 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: 20240377950
    Abstract: A storage device may group a plurality of memory dies into M memory die groups, and migrate, when a first memory die in a first memory die group among the M memory die groups is determined to be in an unusable state, user data stored in user data blocks of the first memory die to a first overprovisioning block group. The first overprovisioning block group may include overprovisioning blocks of memory dies other than the first memory die among the memory dies in the first memory die group.
    Type: Application
    Filed: September 14, 2023
    Publication date: November 14, 2024
    Inventors: JAE IL LEE, Dong Wook KIM, Duck Joo LEE
  • Publication number: 20240354019
    Abstract: When it is determined that a first super memory block among a plurality of super memory blocks satisfies an exchange condition, the storage device may exchange a first memory unit in the first super memory block with a second memory unit included in a second super memory block among the plurality of super memory blocks. In this case, the first memory unit is a bad memory unit and the second memory unit is a normal memory unit.
    Type: Application
    Filed: September 8, 2023
    Publication date: October 24, 2024
    Inventors: Jae Il LEE, Dong Hwan KOO, Duck Joo LEE, Joon Ho LEE, Young Hoon CHA
  • Publication number: 20240264757
    Abstract: A memory system includes: a memory device including a plurality of memory blocks each including a plurality of pages; and a memory controller configured to allocate, to a meta page among the plurality of pages, a first region including regions configured to store plural pieces of meta data respectively according to types of the plural pieces of meta data, and a second region configured to store additional meta data corresponding to at least one meta data among the plural pieces of meta data is stored, and control the memory device to store the plural pieces of meta data and the additional meta data in the first region and the second region, respectively.
    Type: Application
    Filed: July 21, 2023
    Publication date: August 8, 2024
    Inventor: Duck Joo LEE
  • Publication number: 20240020226
    Abstract: A data storage device may include a storage configured to receive and program data in units of first sizes or read and output data in the units of first sizes and a memory controller. The memory controller is configured to generate a mapping information slice having a first size as a trim command including a first logical address which is transmitted thereto from an external device, the mapping information slice including trim bitmap data and first mapping data for the first logical address, and store the mapping information slice in the storage.
    Type: Application
    Filed: December 15, 2022
    Publication date: January 18, 2024
    Inventors: Dong Ham YIM, Duck Joo LEE
  • Patent number: 11193494
    Abstract: A compression wheel for a turbocharger includes: a wheel hub; and a plurality of blades that are arranged around the wheel hub in a spiral shape, where a round portion is provided at a tip of a leading edge of each of the blades.
    Type: Grant
    Filed: November 23, 2019
    Date of Patent: December 7, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and Technology
    Inventors: Teock Hyeong Cho, Gue Hyun Jung, Yong Cheol Lee, Young Sik Kim, Dal Heun Shin, O Jun Kwon, Duck Joo Lee, Dong Ho Seo
  • Patent number: 10960303
    Abstract: The present invention relates to a kinesthetic-feedback wearable apparatus which realizes a kinesthetic-feedback in a virtual reality (VR) or augmented reality (AR), and more particularly to a kinesthetic-feedback wearable apparatus which provides a resistance, which is suitable for a situation in a virtual reality or augmented reality, to a user by using a propeller in a state in which a virtual reality or augmented reality device is mounted to the user who uses the virtual reality or augmented reality device. According to the present invention, a reactive force for a kinesthetic-feedback can be easily realized through a scheme of attaching a light propeller to a wrist, and reactive forces of various directions may be realized only with a small number of propellers by allowing the directions and the RPMs of the propellers to be separately controlled for a higher degree of freedom when two or more propellers are provided.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: March 30, 2021
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (KAIST)
    Inventors: Andrea Bianchi, Duck-Joo Lee, Young Min Jo, Seungwoo Je, Junkyu Kim
  • Publication number: 20200340491
    Abstract: A compression wheel for a turbocharger includes: a wheel hub; and a plurality of blades that are arranged around the wheel hub in a spiral shape, where a round portion is provided at a tip of a leading edge of each of the blades.
    Type: Application
    Filed: November 23, 2019
    Publication date: October 29, 2020
    Inventors: Teock Hyeong Cho, Gue Hyun Jung, Yong Cheol Lee, Young Sik Kim, Dal Heun Shin, O Jun Kwon, Duck Joo Lee, Dong Ho Seo
  • Publication number: 20190321724
    Abstract: The present invention relates to a kinesthetic-feedback wearable apparatus which realizes a kinesthetic-feedback in a virtual reality (VR) or augmented reality (AR), and more particularly to a kinesthetic-feedback wearable apparatus which provides a resistance, which is suitable for a situation in a virtual reality or augmented reality, to a user by using a propeller in a state in which a virtual reality or augmented reality device is mounted to the user who uses the virtual reality or augmented reality device. According to the present invention, a reactive force for a kinesthetic-feedback can be easily realized through a scheme of attaching a light propeller to a wrist, and reactive forces of various directions may be realized only with a small number of propellers by allowing the directions and the RPMs of the propellers to be separately controlled for a higher degree of freedom when two or more propellers are provided.
    Type: Application
    Filed: April 22, 2019
    Publication date: October 24, 2019
    Inventors: Andrea Bianchi, Duck-Joo Lee, Young Min Jo, Seungwoo Je, Junkyu Kim
  • Publication number: 20080268022
    Abstract: This application discusses methods and compositions for preventing and treating ailments and/or diseases, such as HPV, with carrageenan. Moreover, methods and systems for administering carrageenan are described herein. In some embodiments, carrageenan (i.e., carrageenan, carrageenan prodrugs, carrageenan metabolites, carrageenan derivatives, and so forth) may be used prophylacticly in order prevent and/or slow a subject from receiving an ailment and/or disease. In other embodiments, carrageenan may be used to treat, suppress, and/or ameliorate an ailment and/or disease after a subject has a condition. While carrageenan may be administered alone, in some cases, the beneficial effects of carrageenan can be synergistically or additively improved by co-administering carrageenan with a polyamide, a polyamide-like compound, and/or surfactant.
    Type: Application
    Filed: February 22, 2008
    Publication date: October 30, 2008
    Inventors: R. Tyler McCabe, Donald F. Grabarz, Duck Joo Lee
  • Publication number: 20070031826
    Abstract: This invention relates to a kit and a method of use thereof to detect and determine the genotype of HPVs in a biological sample. The kit for detection and determination of the genotype of HPV, comprises PCR primers for HPV genes; HPV oligonucleotide chips having one or more probes immobilized on the chip which have nucleotide sequences complementary to the DNA of 24 HPV subtypes; means and regents for collecting, extracting and amplifying the DNA from a biological sample and hybridizing the amplified DNA with the HPV oligonucleotide chip; and instructions for using the kit to detect and determine the HPV genotype present in the sample.
    Type: Application
    Filed: July 31, 2006
    Publication date: February 8, 2007
    Applicant: MY GENE
    Inventors: Duck-Joo Lee, Woon-Won Jung, Hyun-Sook Kim, Inkwon Han
  • Patent number: 6278958
    Abstract: A method for predicting a noise intensity emitted from a fan is provided. The method in accordance with the present invention provides data about the performance of the fan and a noise intensity corresponding to a shape of the fan and operating conditions so that the data are used in design and manufacturing of fans. The method comprises following steps for: analyzing a flow field around the fan on the basis of a fan shape and operating conditions; obtaining a noise source value of the fan from force data of blades at a given time in the analyzed flow field; and calculating a noise intensity from the noise source value.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: August 21, 2001
    Assignee: Korea Advanced Institute Science and Technology
    Inventors: Duck Joo Lee, Wan Ho Jeon