Patents by Inventor Young-Hwan Jang

Young-Hwan Jang 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: 20240143499
    Abstract: An information handling system includes a flash device interface and a flash device. The flash device includes a flash controller and a flash array. The flash device interface programs a command register of the flash controller with a first value, and reads a status register of the flash controller. The flash device interface further determines that a usage of the flash device is in accordance with one of a first usage model and a second usage model based upon a value in the first status register. When the usage is in accordance with the first usage mode, the flash device interface retains the first value in the command register. When the usage is in accordance with the second usage model, the flash device interface reprograms the command register with a second value. The command register controls a read threshold count value for reading data from the flash array.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 2, 2024
    Inventors: Seung Min Oh, Chai Im Teoh, Young Hwan Jang
  • Publication number: 20240136771
    Abstract: A connector having a shield structure includes a housing, an outer case connected to the housing, an inner case disposed between the housing and the outer case, and a shield structure surrounding the inner case. The connector includes a first cable having a first line, a first inner cover surrounding the first line, and a first cable shield surrounding the first inner cover and connected to the shield structure. The connector includes a second cable having a second line, a second inner cover surrounding the second line, and a second cable shield surrounding the second inner cover and connected to the shield structure. The connector includes a ground terminal electrically connecting the first cable shield and the second cable shield to a first ground, and a ground cable connected to the ground terminal and electrically connecting the first cable shield and the second cable shield to a second ground.
    Type: Application
    Filed: October 18, 2023
    Publication date: April 25, 2024
    Applicant: Tyco Electronics AMP Korea Co., Ltd.
    Inventors: Jin Hwan Yeo, Young-Geun Park, Suk Ho Jang
  • Publication number: 20240118829
    Abstract: Aspects of this disclosure improve data availability by decreasing access times to obtain data from the storage device while still providing high memory density. A method may include identifying, by a controller of a non-volatile solid-state storage device, first data that matches a criteria based on access information regarding data stored in a solid state drive as targeted data; writing, by the controller of the non-volatile solid-state storage device, the targeted data from a first portion of the non-volatile solid-state storage device configured as a first type to a second portion of the non-volatile solid-state storage device configured as a second type; and tagging, by the controller of the non-volatile solid-state storage device, the data with a tag based on the access information. Other aspects are also disclosed.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 11, 2024
    Applicant: Dell Products L.P.
    Inventors: Shane Oh, Chai Im Teoh, Young Hwan Jang
  • Patent number: 11953366
    Abstract: A fluid level measurement system using a buoyant body includes a guide part installed in a direction perpendicular to the bottom surface of a fluid storage tank, and provided with a space in which a fluid can move therein; a buoyant body inserted into the guide part, and configured to float along the surface of the fluid inside the guide part; and a measurement part coupled to the top end of the guide part, and configured to measure the level of the surface of the fluid inside the fluid storage tank by transmitting a signal toward the buoyant body in the inner space of the guide part and then receiving a signal reflected from the buoyant body.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: April 9, 2024
    Assignee: HANRA IMS CO., LTD
    Inventors: Suk Joon Ji, Young Gu Kim, Jong Min Chung, Chae Ho Lee, I-Hwan Cheon, Kwang Ik Chun, Dong Sik Jang
  • Publication number: 20240110727
    Abstract: Provided is a carbon monoxide (CO) leak alerting device and method, and more specifically, a CO leak alerting device and method, whereby, by operating on the basis of the Internet of Things (IoT), a CO leak caused by damage to a boiler flue is detected, an alert is issued through two or more among the CO leak alerting device, a boiler controller and a wall pad, boiler ventilation and indoor air ventilation are automatically carried out when the leak is determined to have occurred, and authorities relevant to the CO leak, and a user are directly notified of the CO leak.
    Type: Application
    Filed: October 30, 2020
    Publication date: April 4, 2024
    Inventors: Young-Hwan CHOI, Sung-An HA, Jung-Jae JANG
  • Publication number: 20240105044
    Abstract: The present disclosure relates to a system and a method for discharging carbon monoxide (CO) by using a CO leakage alarm device and, more specifically, to a system and a method for discharging CO by using a CO leakage alarm device, the system and the method being operated on the basis of the Internet of things (IoT) so as to: detect CO leakage caused by damage to a boiler flue and sound an alarm through at least two from among the CO leakage alarm device, a boiler controller, a wall pad, and the like, automatically perform boiler ventilation and indoor air ventilation when the leakage is determined; and directly notify CO leakage-related authorities and users about the CO leakage.
    Type: Application
    Filed: October 13, 2020
    Publication date: March 28, 2024
    Inventors: Young-Hwan CHOI, Sung-An HA, Jung-Jae JANG
  • Patent number: 11940716
    Abstract: A camera module includes: a first lens module disposed in a housing; and a reflective module. The reflective module includes: a reflective member including at least two reflective surfaces disposed at different angles and configured to reflect light passing through the first lens module; and a carrier disposed between the reflective member and the housing. The cameral module further includes an image sensor configured to collect light reflected from the reflective module. The reflective member is configured to move in a first direction with respect to the carrier, and the carrier is configured to move in a second direction perpendicular to the first direction with respect to the housing.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: March 26, 2024
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Young Hwan Kwon, Ik Jin Jang, Chuel Jin Park, Se Houn Lee
  • Patent number: 11916123
    Abstract: An integrated circuit device includes a substrate having source and drain recesses therein that are lined with respective silicon-germanium liners and filled with doped semiconductor source and drain regions. A stacked plurality of semiconductor channel layers are provided, which are separated vertically from each other within the substrate by corresponding buried insulated gate electrode regions that extend laterally between the silicon-germanium liners. An insulated gate electrode is provided on an uppermost one of the plurality of semiconductor channel layers. The silicon-germanium liners may be doped with carbon.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: February 27, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Dae Cho, Ki Hwan Kim, Sung Uk Jang, Su Jin Jung
  • Publication number: 20240028205
    Abstract: Aspects of this disclosure improve data availability by decreasing access times to obtain data from the storage device while still providing high memory density. A method may include receiving, by a controller of a non-volatile solid-state storage device, data with tags to be stored in a first portion configured as a first type and a second portion configured as a second type; receiving, by the controller, a storage command comprising an indicator, wherein at least some data associated with a tag identified by the indicator is stored in the first portion; and writing, by the controller based on receiving the storage command, the at least some data associated with the tag identified by the indicator from the first portion to the second portion. Other aspects are also disclosed.
    Type: Application
    Filed: July 20, 2022
    Publication date: January 25, 2024
    Applicant: Dell Products L.P.
    Inventors: Gokul Thiruchengode Vajravel, Young Hwan Jang, Chai Im Teoh, Min Thu Aung
  • Publication number: 20240012763
    Abstract: Systems and methods are provided that may be implemented to collect and log (or record) data or information regarding logical block address (LBA) access activity occurring in a solid-state drive (SSD) non-volatile memory storage device of an information handling system. The LBA access activity may be collected, logged and store at the SSD storage controller-level, and may be retrieved and processed and/or analyzed to develop and then implement non-volatile memory management techniques to optimize and improve SSD device operation and performance (e.g., by decreasing read/write completion times), optimizing SSD media endurance (e.g., by extending the useful life of the SSD media), etc.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 11, 2024
    Inventors: Young Hwan Jang, Min Thu Aung, Chai Im Teoh
  • Publication number: 20230138905
    Abstract: Methods and systems for managing the operation of host devices is disclosed. A host device may include a computing device that operates in accordance with operation data. The operation data may include, for example, startup data such as code for a management entity (e.g., a basic input output system), settings (e.g., hardware and/or software) for the startup management entity, setting for general operation after booting to an operating system, copies of code (e.g., computer instructions executable with a processor) for applications to be executed by the host device, etc. If the operation data is modified, operation of the host device may be similarly modified.
    Type: Application
    Filed: October 28, 2021
    Publication date: May 4, 2023
    Inventors: VENKATA RAMA KRISHNA RAO ATTA, SUMANTH VIDYADHARA, ADOLFO SANDOR MONTERO, Young Hwan Jang
  • Patent number: 11593191
    Abstract: Systems and methods are provided that may be implemented to perform failure analysis and/or self-healing of information handling system storage. In one example, an information handling system may perform self-recovery actions to self-heal system storage issues when there is a OS boot failure due to a failure to detect a system storage drive by determining one or more possible recovery actions based on a current system storage drive status retrieved by an embedded controller (EC) or other programmable integrated circuit of the information handling system. In another example, manufacturing quality control analysis may be performed on boot failure information that is collected at a remote server from multiple failed information handling systems.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: February 28, 2023
    Assignee: Dell Products L.P.
    Inventors: Chai Im Teoh, Young Hwan Jang
  • Publication number: 20230025750
    Abstract: Systems and methods are provided that may be implemented to perform failure analysis and/or self-healing of information handling system storage. In one example, an information handling system may perform self-recovery actions to self-heal system storage issues when there is a OS boot failure due to a failure to detect a system storage drive by determining one or more possible recovery actions based on a current system storage drive status retrieved by an embedded controller (EC) or other programmable integrated circuit of the information handling system. In another example, manufacturing quality control analysis may be performed on boot failure information that is collected at a remote server from multiple failed information handling systems.
    Type: Application
    Filed: July 13, 2021
    Publication date: January 26, 2023
    Inventors: Chai Im Teoh, Young Hwan Jang
  • Publication number: 20220357980
    Abstract: The compression and decompression of files can be selectively offloaded to a hardware controller. A hardware controller, such as the controller of an SSD or other drive, can include a compression engine that is configured to implement compression techniques. A filter driver in the I/O pathway on a computing device may be configured to intercept an application's attempt to write a file to or read a file from the SSD or other drive and to selectively offload compression or decompression of the file to a compression engine on the SSD or other drive.
    Type: Application
    Filed: May 6, 2021
    Publication date: November 10, 2022
    Inventors: Young Hwan Jang, Gokul Thiruchengode Vajravel
  • Publication number: 20210255801
    Abstract: A host memory buffer is configured as a write cache for prioritizing read operations. When a peripheral device (such as a solid-state drive) receives a mixture of read requests and write requests, the write requests may be suspended or deferred to first execute the read requests. The write requests may be cached to the host memory buffer, thus allowing the peripheral device to process the read requests for relatively immediate response. Once the read requests are completed, the peripheral device may begin executing a queue of the write requests stored to the host memory buffer. This caching strategy results in a thirty percent (30%) improvement in drive performance.
    Type: Application
    Filed: February 19, 2020
    Publication date: August 19, 2021
    Inventors: Young Hwan Jang, Lip Vui Kan
  • Patent number: 11093174
    Abstract: A host memory buffer is configured as a write cache for prioritizing read operations. When a peripheral device (such as a solid-state drive) receives a mixture of read requests and write requests, the write requests may be suspended or deferred to first execute the read requests. The write requests may be cached to the host memory buffer, thus allowing the peripheral device to process the read requests for relatively immediate response. Once the read requests are completed, the peripheral device may begin executing a queue of the write requests stored to the host memory buffer. This caching strategy results in a thirty percent (30%) improvement in drive performance.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: August 17, 2021
    Assignee: Dell Products L.P.
    Inventors: Young Hwan Jang, Lip Vui Kan
  • Patent number: 11094365
    Abstract: An information handling system includes a memory array and a memory controller. The memory array stores data within the information handling system. The memory controller writes the data to the memory array. The memory controller also determines whether a temperature of the memory array is above a threshold temperature. The memory controller tags a plurality of memory locations within the memory array written with data while the temperature is above the threshold temperature. While a refresh operation is being executed, the memory controller determines whether the temperature of the memory array is below the threshold temperature. In response to the temperature of the memory array being below the threshold temperature and while the refresh operation is being executed, the memory controller rewrites the data in the tagged memory locations within the memory array.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: August 17, 2021
    Assignee: Dell Products L.P.
    Inventors: Young Hwan Jang, Lip Vui Kan
  • Patent number: 10503635
    Abstract: A method and information handling system, including a solid state drive (SSD) memory device having NAND flash memory and an SSD controller to execute instructions of an SSD adaptive profiling engine for random access memory (RAM) cache optimization, are disclosed. The SSD controller is configured to cache a partial flash translation layer (FTL) table in RAM including look-up addresses corresponding to LBA segments in the NAND flash memory having access counts reflecting SSD I/O operations. The SSD controller is further configured to detect an outlier LBA segment having look-up addresses in the cached, partial FTL table, wherein the outlier LBA segment has an I/O access counts at a threshold level below the mean of access counts of other LBA segments represented in the partial FTL table, and to evict the LBA segment look-up address of the outlier LBA segment from the cached portion of the FTL table.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: December 10, 2019
    Assignee: Dell Products, LP
    Inventors: Lip Vui Kan, Young Hwan Jang
  • Patent number: 10289421
    Abstract: Methods and systems are provided for initializing a host IHS (Information Handling System) that includes an SSD (solid state storage device) connected using PCIe (Peripheral Component Interconnect Express). The SSD detects the transfer of boot data from the host to the persistent storage of the SSD. The SSD marks the detected boot data for pre-fetching. When the host is booted, memory is allocated for the PCIe connection. During the resulting delay, the SSD pre-fetches the marked boot data from persistent storage to a portion of a volatile memory used by the SSD for storing a mapping of the boot data in persistent storage. Upon configuring the PCIe connection, the SSD is provides pre-fetched boot data to the host immediately, thus improving boot times. In certain scenarios, the SSD pre-fetches successive portions of the boot data and provides each pre-fetched portion of the boot data to the host.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: May 14, 2019
    Assignee: Dell Products, L.P.
    Inventors: Young Hwan Jang, Simon Kan
  • Patent number: 10275162
    Abstract: Methods and systems that may be implemented for managing data migration from relatively higher performance and higher endurance solid state non-volatile memory media to relatively lower performance and lower endurance solid state non-volatile memory media. The disclosed methods and systems may be implemented to reduce write amplification that occurs to solid state non-volatile memory media of a memory device by using frequency of LBA update as a parameter for controlling and optimizing data eviction from a relatively higher performance and higher endurance input buffer section in the receiving front of a memory device to a relatively lower performance and lower endurance main memory section of the same memory device.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: April 30, 2019
    Assignee: Dell Products L.P.
    Inventors: Lip Vui Kan, Young Hwan Jang