Patents by Inventor Seung-Duk Cho

Seung-Duk Cho 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: 11928070
    Abstract: A peripheral component interconnect express (PCIe) device includes a common function performing operations associated with a PCIe interface according to a function type, the common function being programmable to be a function type selected from a plurality function types, an access identification information controller generating first access identification information for allowing an access to the common function, and providing the first access identification information to an assigned system image to which the common function has been assigned, a data packet receiver receiving a data packet including target identification information indicating a target system image from the target system image, and an access allowance determiner determining whether or not to allow the target system image to access the common function based on the first access identification information and the target identification information.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: March 12, 2024
    Assignee: SK hynix Inc.
    Inventors: Yong Tae Jeon, Byung Cheol Kang, Seung Duk Cho, Sang Hyun Yoon, Se Hyeon Han, Jae Young Jang
  • Publication number: 20240078322
    Abstract: The present disclosure relates to a memory system capable of encrypting and storing data, and a memory controller. The memory controller may include a first interface configured to perform data Communication with a first external device, a second interface configured to generate a signal for controlling an operation of a second extern& device and transmit the signal; and a processor configured to receive, from the first external device, a data write command to write data to the second external device, encrypt the data by using one of a plurality of keys stored in a key area provided in the first external device in response to the data write command, and then control the encrypted data to be written to the second external device.
    Type: Application
    Filed: January 13, 2023
    Publication date: March 7, 2024
    Inventors: Seung Duk CHO, Woo Tae CHANG, Gi Jo JEONG, Jung Hyun JOH
  • Publication number: 20230353341
    Abstract: Interface devices and systems that include interface devices are disclosed. In some implementations, a device includes a transceiver configured to transmit and receive data, a lane margining controller in communication with the transceiver and configured to control the transceiver to transmit, through a margin command, to an external device, a request for requesting a state of an elastic buffer of the external device, and control the transceiver to receive the state of the elastic buffer of from the external device, and a port setting controller adjust a clock frequency range of a spread spectrum clocking scheme based on the state of the elastic buffer.
    Type: Application
    Filed: July 11, 2023
    Publication date: November 2, 2023
    Inventors: Yong Tae JEON, Dae Sik PARK, Jae Young JANG, Byung Cheol KANG, Seung Duk CHO
  • Patent number: 11726947
    Abstract: A method of operating an interface device including a first elastic buffer is provided. The method of operating the interface device includes initializing one or more parameters associated with clock signals for a data transmission or reception of the interface device, checking whether the interface device is in a predetermined mode for adjusting the one or more parameters, adjusting, upon determination that the interface device is in the predetermined mode, the one or more parameters associated with the clock signals of the interface device based on how much of the first buffer or the second buffer is filled with data, and performing the data transmission or reception based on the adjusted one or more parameters associated with the clock signals.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: August 15, 2023
    Assignee: SK HYNIX INC.
    Inventors: Dae Sik Park, Byung Cheol Kang, Seung Duk Cho
  • Publication number: 20230221895
    Abstract: Embodiments of the present disclosure relate to a memory system and an operating method of the memory system. According to embodiments of the present disclosure, a memory system may include a buffer memory for storing tail doorbell information for N submission queues capable of storing a command fetched from the host or head doorbell information for N completion queues capable of storing an execution result of the command fetched from the host.
    Type: Application
    Filed: March 8, 2023
    Publication date: July 13, 2023
    Inventors: In Ho JUNG, Ji Woon YANG, Gi Jo JEONG, Seung Duk CHO
  • Patent number: 11625195
    Abstract: Embodiments of the present disclosure relate to a memory system and an operating method of the memory system. According to embodiments of the present disclosure, a memory system may include a buffer memory for storing tail doorbell information for N submission queues capable of storing a command fetched from the host or head doorbell information for N completion queues capable of storing an execution result of the command fetched from the host.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: April 11, 2023
    Assignee: SK hynix Inc.
    Inventors: In Ho Jung, Ji Woon Yang, Gi Jo Jeong, Seung Duk Cho
  • Patent number: 11599495
    Abstract: Devices for performing communications are disclosed. In some implementations, a device includes: an upstream port for receiving data from or transmitting data to one or more external devices located on an upstream path through a link including a plurality of lanes; a lane margining controller coupled to the upstream port and for transmitting, via the upstream port, to the one or more external devices, a margin command for requesting a lane margining operation to acquire margin status information to indicate a margin of each of the plurality of lanes, and controlling the upstream port to receive the margin status information from the external devices; and a port setting controller coupled to be in communication with the upstream port to receive the margin status information and for determining a setting of the upstream port based on the margin status information.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: March 7, 2023
    Inventors: Yong Tae Jeon, Dae Sik Park, Seung Duk Cho
  • Patent number: 11546128
    Abstract: Interface devices and systems that include interface devices are disclosed. In some implementations, a device includes a transceiver configured to transmit and receive data, a lane margining controller in communication with the transceiver and configured to control the transceiver to transmit, through a margin command, to an external device, a request for requesting a state of an elastic buffer of the external device, and control the transceiver to receive the state of the elastic buffer of from the external device, and a port setting controller adjust a clock frequency range of a spread spectrum clocking scheme based on the state of the elastic buffer.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: January 3, 2023
    Assignee: SK hynix Inc.
    Inventors: Yong Tae Jeon, Dae Sik Park, Jae Young Jang, Byung Cheol Kang, Seung Duk Cho
  • Publication number: 20220327082
    Abstract: A peripheral component interconnect express (PCIe) device includes a common function performing operations associated with a PCIe interface according to a function type, the common function being programable to be a function type selected from a plurality function types, an access identification information controller generating first access identification information for allowing an access to the common function, and providing the first access identification information to an assigned system image to which the common function has been assigned, a data packet receiver receiving a data packet including target identification information indicating a target system image from the target system image, and an access allowance determiner determining whether or not to allow the target system image to access the common function based on the first access identification information and the target identification information.
    Type: Application
    Filed: October 20, 2021
    Publication date: October 13, 2022
    Inventors: Yong Tae JEON, Byung Cheol KANG, Seung Duk CHO, Sang Hyun YOON, Se Hyeon HAN, Jae Young JANG
  • Publication number: 20220327080
    Abstract: A peripheral component interconnect express (PCIe) device includes a plurality of common functions performing operations associated with a PCIe interface according to a function type of each of the plurality of common functions, each of the plurality of common functions being programmable to be a function type selected from a plurality function types, and a function type controller determining the function type of each of the plurality of common functions based on function type setting information provided from a host. Each function type may be a physical function type, a virtual function type, or a disable function type.
    Type: Application
    Filed: October 18, 2021
    Publication date: October 13, 2022
    Inventors: Yong Tae JEON, Byung Cheol KANG, Seung Duk CHO
  • Publication number: 20220327228
    Abstract: A Peripheral Component Interconnect Express (PCIe) function includes an access identification information controller generating first access identification information for allowing an access to the PCIe function, and providing the first access identification information to an assigned system image to which the PCIe function has been assigned, the assigned system image being one of a plurality of system images, a data packet receiver receiving a data packet including target identification information indicating a target system image selected from the plurality of system images from the target system image, and an access allowance determiner determining whether or not to allow an access of the first target system image based on the access identification information and the target identification information.
    Type: Application
    Filed: October 18, 2021
    Publication date: October 13, 2022
    Inventors: Yong Tae JEON, Jae Young JANG, Seung Duk CHO
  • Publication number: 20220318180
    Abstract: Devices for performing communications are disclosed. In some implementations, a device includes: an upstream port for receiving data from or transmitting data to one or more external devices located on an upstream path through a link including a plurality of lanes; a lane margining controller coupled to the upstream port and for transmitting, via the upstream port, to the one or more external devices, a margin command for requesting a lane margining operation to acquire margin status information to indicate a margin of each of the plurality of lanes, and controlling the upstream port to receive the margin status information from the external devices; and a port setting controller coupled to be in communication with the upstream port to receive the margin status information and for determining a setting of the upstream port based on the margin status information.
    Type: Application
    Filed: June 17, 2021
    Publication date: October 6, 2022
    Inventors: Yong Tae JEON, Dae Sik PARK, Seung Duk CHO
  • Publication number: 20220311590
    Abstract: Interface devices and systems that include interface devices are disclosed. In some implementations, a device includes a transceiver configured to transmit and receive data, a lane margining controller in communication with the transceiver and configured to control the transceiver to transmit, through a margin command, to an external device, a request for requesting a state of an elastic buffer of the external device, and control the transceiver to receive the state of the elastic buffer of from the external device, and a port setting controller adjust a clock frequency range of a spread spectrum clocking scheme based on the state of the elastic buffer.
    Type: Application
    Filed: June 14, 2022
    Publication date: September 29, 2022
    Inventors: Yong Tae JEON, Dae Sik PARK, Jae Young JANG, Byung Cheol KANG, Seung Duk CHO
  • Publication number: 20220261185
    Abstract: Embodiments of the present disclosure relate to a memory system and an operating method of the memory system. According to embodiments of the present disclosure, a memory system may include a buffer memory for storing tail doorbell information for N submission queues capable of storing a command fetched from the host or head doorbell information for N completion queues capable of storing an execution result of the command fetched from the host.
    Type: Application
    Filed: July 9, 2021
    Publication date: August 18, 2022
    Inventors: In Ho JUNG, Ji Woon YANG, Gi Jo JEONG, Seung Duk CHO
  • Publication number: 20210390074
    Abstract: A method of operating an interface device including a first elastic buffer is provided. The method of operating the interface device includes initializing one or more parameters associated with clock signals for a data transmission or reception of the interface device, checking whether the interface device is in a predetermined mode for adjusting the one or more parameters, adjusting, upon determination that the interface device is in the predetermined mode, the one or more parameters associated with the clock signals of the interface device based on how much of the first buffer or the second buffer is filled with data, and performing the data transmission or reception based on the adjusted one or more parameters associated with the clock signals.
    Type: Application
    Filed: October 27, 2020
    Publication date: December 16, 2021
    Inventors: Dae Sik Park, Byung Cheol Kang, Seung Duk Cho
  • Publication number: 20210391973
    Abstract: Interface devices and systems that include interface devices are disclosed. In some implementations, a device includes a transceiver configured to transmit and receive data, a lane margining controller in communication with the transceiver and configured to control the transceiver to transmit, through a margin command, to an external device, a request for requesting a state of an elastic buffer of the external device, and control the transceiver to receive the state of the elastic buffer of from the external device, and a port setting controller adjust a clock frequency range of a spread spectrum clocking scheme based on the state of the elastic buffer.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 16, 2021
    Inventors: Yong Tae JEON, Dae Sik PARK, Jae Young JANG, Byung Cheol KANG, Seung Duk CHO
  • Patent number: 8889901
    Abstract: A photoacid generator represented by the following formula (1), a method for producing the photoacid generator, and a resist composition containing the photoacid generator are provided. wherein in the formula (1), Y, X, R1, R2, n1, n2 and A+ have the same meanings as defined in the detailed description of the invention. The photoacid generator can maintain an appropriate contact angle at the time of ArF liquid immersion lithography, can reduce defects occurring during liquid immersion lithography, and has excellent solubility in resist solvents and excellent compatibility with resins. Furthermore, the photoacid generator can be produced by an efficient and simple method using an epoxy compound that is industrially easily available.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: November 18, 2014
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jung Hoon Oh, Dae Kyung Yoon, Yong Hwa Hong, Seung Duk Cho
  • Patent number: 8853441
    Abstract: A sulfonium compound represented by the following formula (1), a photoacid generator containing the sulfonium compound, and a resist composition containing the photoacid generator are provided: wherein X represents an electron donor group; R1 and R2 each independently represent an alkyl group or the like; R4 to R6 each independently represent an alkyl group, or the like; R3 represents a cyclic alkenediyl group or the like; and ?A represents an anion. The sulfonium compound has a photon yield that is controllable by introducing different absorbers to the cation region in one molecule, can address the inconvenience of using a mixture of different photoacid generators when the sulfonium compound is applied as a photoacid generator, has excellent miscibility in a resist, and has enhanced resolution and line edge roughness.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: October 7, 2014
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jung Hoon Oh, Dae Kyung Yoon, Seung Duk Cho, So Jeong Park
  • Patent number: 8812807
    Abstract: Disclosed is a memory system which includes a nonvolatile memory device configured to store data information; and a memory controller configured to control the nonvolatile memory device. The memory controller provides the nonvolatile memory device with a program command sequence including program speed information according to an urgency level of an internally requested program operation.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: August 19, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Duk Cho, Hojun Shim, Kijo Jung
  • Patent number: 8760918
    Abstract: A memory system is provided with a processor, a main memory, and a flash memory. Performance of the memory system is improved through achievement of speed-up and high data reliability. The memory system includes a nonvolatile memory device and a controller configured to drive a control program to control the nonvolatile memory device. The control program executes a second access operation for the nonvolatile memory device even before a first access operation to the nonvolatile memory device is completed.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: June 24, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaesoo Lee, Kangho Roh, Wonhee Cho, Hojun Shim, Youngjoon Choi, Jaehoon Heo, Je-Hyuck Song, Seung-Duk Cho, Seontaek Kim, Moonwook Oh, Jong Tae Park, Wonmoon Cheon, Chanik Park, Yang-sup Lee