Patents by Inventor Sung-hyun Hwang

Sung-hyun Hwang 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: 20220122669
    Abstract: Provided herein may be a memory device capable of completing a foggy-fine program operation in one ready/busy period. The memory device may include a plurality of memory cells configured to form a plurality of pages, a peripheral circuit configured to perform a first program operation on a page adjacent to a selected page among the plurality of pages, and perform a second program operation on the selected page and control logic configured to control the peripheral circuit, during the first program operation, to successively receive least significant bit (LSB) page data, center significant bit (CSB) page data, and most significant bit (MSB) page data from a memory controller, and program the LSB page data to the page adjacent to the selected page and during the second program operation, to program the LSB page data programmed to the page adjacent to the selected page, the CSB page data and the MSB page data to the selected page.
    Type: Application
    Filed: April 20, 2021
    Publication date: April 21, 2022
    Inventors: Sung Hyun HWANG, Jin Haeng LEE
  • Publication number: 20220122670
    Abstract: Provided herein may be a memory device capable of completing program operations for multiple pages in one ready/busy period. The memory device may include a plurality of memory cells configured to form a plurality of pages, a peripheral circuit configured to perform a first program operation and a second program operation and control logic configured to control the peripheral circuit to receive least significant bit (LSB) page data of a page adjacent to a selected page, center significant bit (CSB) page data, and most significant bit (MSB) page data of the selected page from a memory controller, and program the LSB page data of the page adjacent to the page adjacent to the selected page and to obtain LSB page data from the selected page, previously stored in the selected page, and program the LSB page data, the CSB page data and the MSB page data of the selected page to the selected page.
    Type: Application
    Filed: July 21, 2021
    Publication date: April 21, 2022
    Inventors: Sung Hyun HWANG, Jin Haeng LEE
  • Publication number: 20220051739
    Abstract: Provided herein may be a memory device and a method of operating the same. The memory device may include a plurality of memory cells, each having an erased state or any one of a plurality of program states, a peripheral circuit configured to perform a program operation including a plurality of program loops, and an operation controller configured to control the peripheral circuit so that, in response to a pass in verification for an N-th program state among the plurality of program states in a verify phase included in an x-th program loop among the plurality of program loops, verification for an N+M-th program state among the plurality of program states starts in a verify phase included in an x+1-th program loop among the plurality of program loops.
    Type: Application
    Filed: January 28, 2021
    Publication date: February 17, 2022
    Inventors: Sung Hyun HWANG, Jin Haeng LEE
  • Patent number: 11244736
    Abstract: Provided herein is a memory device and a method of operating the memory device. The memory device may include a plurality of memory cells; a peripheral circuit configured to verify a program operation on the plurality of memory cells using a first verify voltage; and a control logic configured to control the peripheral circuit to suspend the program operation in response to a suspend command and verify the program operation on the plurality of memory cells using a second verify voltage in response to a resume command input after the suspend command. The second verify voltage may have a lower voltage level than the first verify voltage.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: February 8, 2022
    Assignee: SK hynix Inc.
    Inventors: Sung Hyun Hwang, Kyu Sub Yoon
  • Publication number: 20220036524
    Abstract: The various embodiments of the present disclosure are directed towards methods for tone mapping High-Dynamic-Range (HDR) image data, as well as controlling the brightness of the image encoded by HDR the image data and/or the tone-mapped image data. HDR image is captured. A tone mapping function for the HDR image data is generated. To generate the tone mapping function, control points are dynamically determined based on an analysis of the HDR image data. The tone mapping function is fit to the control points. The tone mapping function is a non-linear function, and is described by a curve in a plane. The shape of the curve is constrained by a line generated from a portion of the control points. The tone mapping function is applied to the HDR image data. A color-compression is applied to the tone mapped image data to generate Standard Dynamic Range or Low Dynamic Range image data.
    Type: Application
    Filed: October 13, 2021
    Publication date: February 3, 2022
    Inventors: Yining Deng, Eric Dujardin, Hamidreza Mirzaei Domabi, Sung Hyun Hwang
  • Patent number: 11235716
    Abstract: A moveable seat control apparatus with an automatically chargeable battery, may include a seat including a moving motor engaged to the seat and configured to selectively move the seat along a rail, a battery positioned below the seat, and configured to receive power to perform charge, and to supply the charged power, a controller positioned below the seat and connected to the battery, and configured to monitor a state of charge (SOC) value of the battery to generate SOC information, and to control the moving motor to move the seat to a charge position when the SOC is equal to or less than a predetermined SOC, and a charger connected to the battery and coupled to a power supply terminal to receive the power and to charge the battery.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: February 1, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Daechang Seat Co., Ltd-Dongtan
    Inventors: So Young Yoo, Hyo Cheol Kang, Doo Ri Kim, Hyung Jin Park, Yo Han Kim, Sung Hyun Hwang, Seon Chae Na, Sang Uk Yu, Dong Hoon Lee, Byung Yong Choi, Sang Young Park, Tae Hong Han
  • Publication number: 20220020436
    Abstract: A semiconductor memory device includes a memory cell array, a page buffer, a control logic, and a voltage generator. The memory cell array includes memory cells. The page buffer is connected to the memory cells through a bit line and configure to read data of the memory cells. The control logic generates control signals for controlling the page buffer. The voltage generator generates activation voltages of the control signals. The page buffer includes a first transistor between the bit line and a first node, a second transistor between a power voltage and a second node, a third transistor between the first node and the second node, a fourth transistor between the second node and a third node, and a fifth transistor between the first node and the third node. The voltage generator controls a first control signal controlling the fifth transistor based on temperature of the semiconductor memory device.
    Type: Application
    Filed: November 13, 2020
    Publication date: January 20, 2022
    Inventors: Hyung Jin CHOI, Sung Hyun HWANG
  • Publication number: 20220020441
    Abstract: The present disclosure relates to a memory device that includes a plurality of memory cells. The memory device also includes a peripheral circuit configured to perform a program operation of storing data in the plurality of memory cells, which includes a plurality of program loops each including an operation of applying a program voltage to a selected word line commonly connected to the plurality of memory cells and a verify operation of applying at least one verify voltage among verify voltages respectively corresponding to target program states of the plurality of memory cells. The memory device additionally includes control logic configured to control the peripheral circuit so that the at least one verify voltage increases according to a program loop of the plurality of program loops during the program operation.
    Type: Application
    Filed: November 20, 2020
    Publication date: January 20, 2022
    Applicant: SK hynix Inc.
    Inventor: Sung Hyun Hwang
  • Publication number: 20220005532
    Abstract: The present technology relates to an electronic device. According to the present technology, a method of operating a memory device including a program operation speed in which an effect of a disturbance is reduced, and including a plurality of memory blocks each including a plurality of memory cell strings each including a plurality of memory cells connected in series between a bit line and a source line, a plurality of source select transistors connected in series between the source line and the plurality of memory cells, and a plurality of drain select transistors connected in series between the bit line and the plurality of memory cells, includes applying a precharge voltage to the source line, and applying the precharge voltage to a first source select line connected to a source select transistor adjacent to the source line among source select transistors included in an unselected memory block among the plurality of memory blocks.
    Type: Application
    Filed: January 11, 2021
    Publication date: January 6, 2022
    Inventor: Sung Hyun HWANG
  • Patent number: 11182884
    Abstract: The various embodiments of the present disclosure are directed towards methods for tone mapping High-Dynamic-Range (HDR) image data, as well as controlling the brightness of the image encoded by HDR the image data and/or the tone-mapped image data. HDR image is captured. A tone mapping function for the HDR image data is generated. To generate the tone mapping function, control points are dynamically determined based on an analysis of the HDR image data. The tone mapping function is fit to the control points. The tone mapping function is a non-linear function, and is described by a curve in a plane. The shape of the curve is constrained by a line generated from a portion of the control points. The tone mapping function is applied to the HDR image data. A color-compression is applied to the tone mapped image data to generate Standard Dynamic Range or Low Dynamic Range image data.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: November 23, 2021
    Assignee: NVIDIA Corporation
    Inventors: Yining Deng, Eric Dujardin, Hamidreza Mirzaei Domabi, Sung Hyun Hwang
  • Patent number: 11172448
    Abstract: An operation method of a communication node for supporting a low power mode in a wireless LAN is disclosed. A method for operating an access point comprises: a step of transmitting a CTS frame to protect transmission of a wake-up packet, a step of transmitting the wake-up packet to wake up a station including PCR and WURx; and a step of transmitting a data frame to the station. Therefore, the performance of the communication system can be improved.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: November 9, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung Hyun Hwang, Seung Keun Park, Yong Ho Kim
  • Publication number: 20210327513
    Abstract: A memory device that controls a floating time point of word lines connected to a sub block adjacent to a sub block on which an erase operation is performed includes a plurality of memory blocks each including a plurality of sub blocks, a voltage generator configured to generate a plurality of voltages to perform an erase operation on any of the plurality of sub blocks, and control logic configured to divide a plurality of word lines connected to an adjacent sub block neighboring a sub block on which the erase operation is performed into a plurality of groups, and configured to control the voltage generator to differently set a floating time point of word lines included in each group for each of the plurality of groups, during the erase operation.
    Type: Application
    Filed: September 30, 2020
    Publication date: October 21, 2021
    Applicant: SK hynix Inc.
    Inventors: Sung Hyun HWANG, Yeong Jo MUN
  • Patent number: 11153818
    Abstract: Disclosed are a method and an apparatus for initial negotiation in a wireless LAN. An operating method of a station in a communication system comprises the steps of: generating a probe request frame including WUR capability information of the station which supports a WUR mode; transmitting the probe request frame; and receiving a probe response frame from an access point having received the probe request frame. Therefore, the performance of the communication system can be improved.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: October 19, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Hyun Hwang, Igor Kim, Seung Keun Park
  • Patent number: 11134444
    Abstract: Disclosed are a low-power communication method and a low-power communication apparatus in a communication system. A low-power station may comprise a processor; a memory storing at least one instruction executable by the processor; a receiver for receiving a WUR PPDU according to the at least one instruction; and a transceiver for transmitting and receiving a legacy PPDU according to the at least one instruction, and the at least one instruction may be configured to cause the receiver to receive a WUR wake-up frame from the access point in an on-duration within a WUR duty cycle period; when the WUR wake-up frame is received, cause the processor to transmit a first signal requesting wake-up to the transceiver; and when the first signal is received, cause the transceiver to transition from a sleep state to a wake-up state at a TWT configured between the access point and the low-power station.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: September 28, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Hyun Hwang, Kyu Min Kang, Sung Jin Yoo, Su Na Choi, Jae Cheol Park, Yong Ho Kim
  • Publication number: 20210266825
    Abstract: A method and a device for searching for an access point in a wireless LAN are disclosed. An operating method of a station comprising a PCR and a WUR comprises the steps of: allowing the WUR operating in a wake up state to receive a WUR beacon frame from an access point; shifting an operating state of the PCR from a sleep state to the wake up state, when the WUR beacon frame is received; and allowing the PCR operating in the wake up state to communicate with the access point. Therefore, the performance of a communication system can be improved.
    Type: Application
    Filed: May 6, 2021
    Publication date: August 26, 2021
    Inventors: Sung Hyun HWANG, Igor KIM, Seung Keun PARK
  • Publication number: 20210257038
    Abstract: Provided herein is a memory device and a method of operating the memory device. The memory device may include a plurality of memory cells; a peripheral circuit configured to verify a program operation on the plurality of memory cells using a first verify voltage; and a control logic configured to control the peripheral circuit to suspend the program operation in response to a suspend command and verify the program operation on the plurality of memory cells using a second verify voltage in response to a resume command input after the suspend command. The second verify voltage may have a lower voltage level than the first verify voltage.
    Type: Application
    Filed: August 10, 2020
    Publication date: August 19, 2021
    Inventors: Sung Hyun HWANG, Kyu Sub YOON
  • Publication number: 20210178990
    Abstract: A moveable seat control apparatus with an automatically chargeable battery, may include a seat including a moving motor engaged to the seat and configured to selectively move the seat along a rail, a battery positioned below the seat, and configured to receive power to perform charge, and to supply the charged power, a controller positioned below the seat and connected to the battery, and configured to monitor a state of charge (SOC) value of the battery to generate SoC information, and to control the moving motor to move the seat to a charge position when the SoC is equal to or less than a predetermined SoC, and a charger connected to the battery and coupled to a power supply terminal to receive the power and to charge the battery.
    Type: Application
    Filed: August 19, 2020
    Publication date: June 17, 2021
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Daechang Seat Co., Ltd-Dongtan
    Inventors: So Young Yoo, Hyo Cheol Kang, Doo Ri Kim, Hyung Jin Park, Yo Han Kim, Sung Hyun Hwang, Seon Chae Na, Sang Uk Yu, Dong Hoon Lee, Byung Yong Choi, Sang Young Park, Tae Hong Han
  • Patent number: 11032758
    Abstract: A method and a device for searching for an access point in a wireless LAN are disclosed. An operating method of a station comprising a PCR and a WUR comprises the steps of: allowing the WUR operating in a wake up state to receive a WUR beacon frame from an access point; shifting an operating state of the PCR from a sleep state to the wake up state, when the WUR beacon frame is received; and allowing the PCR operating in the wake up state to communicate with the access point. Therefore, the performance of a communication system can be improved.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: June 8, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Hyun Hwang, Igor Kim, Seung Keun Park
  • Publication number: 20210092678
    Abstract: Disclosed is a method for operating a communication node supporting a low power mode in a wireless LAN. A method for operating a station, which includes a PCR and a WURx, comprises the steps of: allowing the WURx, which operates in a wake-up state, to receive a wake-up packet from an access point; transitioning an operating state of the PCR from a sleep state to the wake-up state when the wake-up packet is received; allowing the PCR, which operates in the wake-up state, to receive a data frame from an access point; and allowing the PCR to transmit, to the access point, a response to the data frame.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Inventors: Yong Ho KIM, Sung Hyun HWANG, Igor KIM, Seung Keun PARK
  • Publication number: 20210035273
    Abstract: The various embodiments of the present disclosure are directed towards methods for tone mapping High-Dynamic-Range (HDR) image data, as well as controlling the brightness of the image encoded by HDR the image data and/or the tone-mapped image data. HDR image is captured. A tone mapping function for the HDR image data is generated. To generate the tone mapping function, control points are dynamically determined based on an analysis of the HDR image data. The tone mapping function is fit to the control points. The tone mapping function is a non-linear function, and is described by a curve in a plane. The shape of the curve is constrained by a line generated from a portion of the control points. The tone mapping function is applied to the HDR image data. A color-compression is applied to the tone mapped image data to generate Standard Dynamic Range or Low Dynamic Range image data.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 4, 2021
    Inventors: Yining Deng, Eric Dujardin, Hamidreza Mirzaei Domabi, Sung Hyun Hwang