Patents by Inventor Hyung-gyu Lee

Hyung-gyu 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).

  • Patent number: 11967267
    Abstract: Provided is a display device including a display panel, an optical sensor, a timing controller, a scan driver, a data driver, and an image controller. The timing controller controls an image refresh rate of the display panel based on a refresh rate control signal. Thus, the display device provides improved visibility.
    Type: Grant
    Filed: May 2, 2023
    Date of Patent: April 23, 2024
    Assignees: Samsung Display Co., Ltd., UNIST (Ulsan National Institute Of Science and Technology)
    Inventors: Hyo Sun Kim, Oh Sang Kwon, Seong Gyu Choe, Chang Yeong Han, Min Kyung Kim, You Ra Kim, Eun Jung Lee, Hyung Suk Hwang
  • Publication number: 20240068460
    Abstract: A variable displacement swash plate type compressor control method and a variable displacement swash plate type compressor controlled thereby may include a first determination step of determining whether liquid refrigerant exists within the variable displacement swash plate type compressor; a first operation step of applying power to the field coil assembly and of not applying current to the electronic control valve, when it is determined in the first determination step S1 that the liquid refrigerant exists; a second determination step of comparing an elapsed period of time of operating in the first operation step with a predetermined reference time; and a second operation step of maintaining the power applied in the first operation step to the field coil assembly and applying current to the electronic control valve when the elapsed period of time is greater than or equal to the reference time.
    Type: Application
    Filed: July 13, 2022
    Publication date: February 29, 2024
    Inventors: Hyung In Choi, Seong Gyu Gong, Young Min Kim, Eun Gi Son, Joo Young Lee, Soo Cheol Jeong
  • Patent number: 8880777
    Abstract: A non-volatile mass storage memory and an input/output processing method using the memory are provided. The memory device includes a storage unit including a non-volatile random access memory and a flash memory and a controller to control the storage to process an input/output request. Accordingly, system memories having different purposes and functionalities, such as a flash memory and a dynamic random access memory (DRAM), may be integrated with each other.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: November 4, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-kyu Kim, Hyung-gyu Lee
  • Patent number: 8856469
    Abstract: A logging optimization technology using a non-volatile memory is provided. A log record has a first link connected based on a page unit and a second link connected based on a transaction unit. The log record is stored in a non-volatile memory buffer. The log record stored in the non-volatile memory buffer is deleted or moved to a disk, if necessary.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: October 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Gyu Jin, Kyoung-Gu Woo, Hyung-Gyu Lee
  • Patent number: 8504761
    Abstract: A solid state drive (SSD) including a storage that includes a plurality of flash memories configured to be independently drivable and a controller to receive an input/output (I/O) request from a host, to split the I/O request into a plurality of sub-requests each having a size configured to be capable of being processed independently by each flash memory, and to process the I/O request based on the sub-requests.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: August 6, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-kyu Kim, Hyung-gyu Lee
  • Patent number: 8423865
    Abstract: An apparatus and method for storing data using a non-volatile buffer. A first data is stored in a first non-volatile buffer according to a first input/output request. The first data stored in the first non-volatile buffer is written into a memory cell while a second data is being stored in a second non-volatile buffer according to a second input/output request.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: April 16, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hyung-Gyu Lee
  • Publication number: 20130007340
    Abstract: A solid state drive (SSD) including a storage that includes a plurality of flash memories configured to be independently drivable and a controller to receive an input/output (I/O) request from a host, to split the I/O request into a plurality of sub-requests each having a size configured to be capable of being processed independently by each flash memory, and to process the I/O request based on the sub-requests.
    Type: Application
    Filed: May 10, 2012
    Publication date: January 3, 2013
    Inventors: Jin-kyu KIM, Hyung-gyu Lee
  • Patent number: 8332575
    Abstract: A data management system includes a data processor configured to provide a file system module configured to store first data in a flash memory in block units and a filter layer module configured to receive second data from the file system module and to store the second data in a phase-change random access memory (PRAM) in sub-block units. The filter layer module may be configured to identify difference data in the second data received from the file system module by comparing the received second data and third data stored in the PRAM, and to write the identified difference data to the PRAM. The second data may include file metadata and the first data may include data other than file metadata. The sub-block units may be byte units.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: December 11, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Kyu Kim, Kyoung-Il Bang, Hyung-Gyu Lee
  • Patent number: 8195871
    Abstract: A solid state drive (SSD) including a storage that includes a plurality of flash memories configured to be independently drivable and a controller to receive an input/output (I/O) request from a host, to split the I/O request into a plurality of sub-requests each having a size configured to be capable of being processed independently by each flash memory, and to process the I/O request based on the sub-requests.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: June 5, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-kyu Kim, Hyung-gyu Lee
  • Patent number: 8108592
    Abstract: A memory system includes a variable resistance memory configured to input and output data by a first unit and a translation layer for managing the degree of wear of the variable resistance memory by a second unit, different from the first unit.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: January 31, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-kyu Kim, Kyoung-il Bang, Hyung-gyu Lee, Kyu-ho Park, Young-woo Park
  • Patent number: 7979631
    Abstract: A method of prefetching data in a hard disk drive includes searching for a logic block address (LBA) of data requested by an external apparatus in a history of a non-volatile cache of the hard disk drive, and if the LBA of the data is stored in the history, storing data recorded in a LBA stored after the LBA of the data requested by the external apparatus from among LBAs stored in the history in a buffer of the hard disk drive.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: July 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-jun Ahn, Hyung-gyu Lee, Jung-hwan Kim, Young-bong Kim, Sine Kim, Young-il Seo, Chan-ho Park
  • Publication number: 20110119569
    Abstract: An apparatus and method for storing data using a non-volatile buffer. A first data is stored in a first non-volatile buffer according to a first input/output request. The first data stored in the first non-volatile buffer is written into a memory cell while a second data is being stored in a second non-volatile buffer according to a second input/output request.
    Type: Application
    Filed: July 23, 2010
    Publication date: May 19, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hyung-Gyu LEE
  • Publication number: 20110072207
    Abstract: A logging optimization technology using a non-volatile memory is provided. A log record has a first link connected based on a page unit and a second link connected based on a transaction unit. The log record is stored in a non-volatile memory buffer. The log record stored in the non-volatile memory buffer is deleted or moved to a disk, if necessary.
    Type: Application
    Filed: July 20, 2010
    Publication date: March 24, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Hee-Gyu JIN, Kyoung-Gu Woo, Hyung-Gyu Lee
  • Patent number: 7796427
    Abstract: A method and apparatus for writing data to and reading data from a phase-change random access memory (PRAM) include encoding original data using a predetermined encoding function, selecting data, from among the original data and the encoded data, which require less power when being written to the PRAM, writing the selected data to the PRAM, generating marking information related to the selected data, and writing the marking information to the PRAM. Therefore, power consumption can be reduced when data are written to the PRAM.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: September 14, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-kyu Kim, Kyoung-il Bang, Hyung-gyu Lee
  • Publication number: 20100191898
    Abstract: A non-volatile mass storage memory and an input/output processing method using the memory are provided. The memory device includes a storage unit including a non-volatile random access memory and a flash memory and a controller to control the storage to process an input/output request. Accordingly, system memories having different purposes and functionalities, such as a flash memory and a dynamic random access memory (DRAM), may be integrated with each other.
    Type: Application
    Filed: July 31, 2009
    Publication date: July 29, 2010
    Inventors: Jin-kyu Kim, Hyung-gyu Lee
  • Publication number: 20100180070
    Abstract: A solid state drive (SSD) including a storage that includes a plurality of flash memories configured to be independently drivable and a controller to receive an input/output (I/O) request from a host, to split the I/O request into a plurality of sub-requests each having a size configured to be capable of being processed independently by each flash memory, and to process the I/O request based on the sub-requests.
    Type: Application
    Filed: May 18, 2009
    Publication date: July 15, 2010
    Inventors: Jin-kyu KIM, Hyung-gyu LEE
  • Publication number: 20100037005
    Abstract: A computing system, more particularly, a computing system including a phase-change memory is provided. The computing system includes a flash memory configured to store data and a phase-change memory configured to store address mapping information for converting a logical address into a physical address. The phase-change memory is configured to store the address mapping information while the computing system is in a power-off state. The computing system may store an address mapping table to manage the flash memory in the phase-change memory.
    Type: Application
    Filed: May 7, 2009
    Publication date: February 11, 2010
    Inventors: Jin-kyu KIM, Kyoung-il BANG, Hyung-gyu LEE
  • Publication number: 20090248962
    Abstract: A memory system includes a variable resistance memory configured to input and output data by a first unit and a translation layer for managing the degree of wear of the variable resistance memory by a second unit, different from the first unit.
    Type: Application
    Filed: March 31, 2009
    Publication date: October 1, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-kyu Kim, Kyoung-il Bang, Hyung-gyu Lee, Kyu-ho Park, Young-woo Park
  • Publication number: 20090094405
    Abstract: A method and apparatus for writing data to and reading data from a phase-change random access memory (PRAM) include encoding original data using a predetermined encoding function, selecting data, from among the original data and the encoded data, which require less power when being written to the PRAM, writing the selected data to the PRAM, generating marking information related to the selected data, and writing the marking information to the PRAM. Therefore, power consumption can be reduced when data are written to the PRAM.
    Type: Application
    Filed: August 29, 2008
    Publication date: April 9, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin-kyu Kim, Kyoung-il Bang, Hyung-gyu Lee
  • Publication number: 20090087168
    Abstract: The invention relates generally to a method for reproducing digital media content, and more particularly but without limitation, to a method and apparatus for reading a boot code and digital media content from a non-volatile storage medium other than a conventional hard disk drive. In embodiments of the invention, power is limitedly supplied to an apparatus required for reproducing digital media content. Additionally, in embodiments of the invention, the digital media content is reproduced using a non-volatile storage medium other than a conventional hard disk drive (HDD); in particular, embodiments of the invention utilize a solid state drive (SSD) such as a non-volatile cache memory inside a hybrid hard drive (HDD) or an on-board cache memory. Embodiments of the invention also provide an apparatus for performing the method.
    Type: Application
    Filed: August 26, 2008
    Publication date: April 2, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chan-ho PARK, Hyung-gyu LEE, Jung-hwan KIM, Seong-jun AHN, Young-bong KIM, Shine KIM, Young-il SEO