Patents by Inventor Jung-Hoon Chun

Jung-Hoon Chun 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: 20250323810
    Abstract: Disclosed is a receiver including a pre-processing block that pre-processes a received signal transmitted from an external transmitter and generates a pre-processing signal, an equalization block that generates an equalization signal based on the pre-processing signal and error threshold values, and a threshold generation block that generates the error threshold values and data threshold values. The threshold generation block generates a delay signal obtained by delaying the equalization signal by a unit time interval, generates a filter signal based on subtracting the delay signal from the equalization signal, and generates the error threshold values and the data threshold values based on the filter signal.
    Type: Application
    Filed: March 21, 2025
    Publication date: October 16, 2025
    Applicant: Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Seung Park, Jung-Hoon Chun
  • Publication number: 20250232806
    Abstract: The present invention relates to a method and device for lowering SRAM cell voltage by implementing charge sharing between a discharged bit line and floating CVDD without additional capacitors, thereby achieving efficient voltage reduction while maintaining consistent performance regardless of array size.
    Type: Application
    Filed: January 16, 2025
    Publication date: July 17, 2025
    Applicant: Research & Business Foundation Sungkyunkwan University
    Inventors: Jung-Hoon CHUN, JUHWAN SEOK
  • Publication number: 20250181900
    Abstract: A learning device of a neuron module includes a timer configured to be reset and restarted, based on a post-spike occurring in the neuron module in a spiking neural network (SNN), and a processor configured to determine a post-then-pre time based on time information of the timer based on a pre-spike being received by at least one synapse of a plurality of synapses of the neuron module, determine a weight variation based on the post-then-pre time, and update a weight of the at least one synapse receiving the pre-spike, based on the weight variation.
    Type: Application
    Filed: August 30, 2024
    Publication date: June 5, 2025
    Applicants: SAMSUNG ELECTRONCS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Yoonmyung LEE, Donghyun PARK, Hajung MUN, Hyeonseong IM, Jung-Hoon CHUN
  • Publication number: 20250149085
    Abstract: A device with a neural network includes: a synaptic memory cell comprising a resistive memory element, which is disposed along an output line and which has either one of a first resistance value and a second resistance value, and configured to generate a column signal based on the resistive memory element and an input signal in response to the input signal being received through an input line; a reference memory cell comprising a reference memory element, which is disposed along a reference line and which has the second resistance value different from the first resistance value, and configured to generate a reference signal based on the reference memory element and the input signal; and an output circuit configured to generate an output signal for the output line from the column signal and the reference signal.
    Type: Application
    Filed: January 7, 2025
    Publication date: May 8, 2025
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jung-Hoon CHUN, Jiho SONG, Yoonmyung LEE, Jua LEE
  • Patent number: 12230321
    Abstract: A device with a neural network includes: a synaptic memory cell comprising a resistive memory element, which is disposed along an output line and which has either one of a first resistance value and a second resistance value, and configured to generate a column signal based on the resistive memory element and an input signal in response to the input signal being received through an input line; a reference memory cell comprising a reference memory element, which is disposed along a reference line and which has the second resistance value different from the first resistance value, and configured to generate a reference signal based on the reference memory element and the input signal; and an output circuit configured to generate an output signal for the output line from the column signal and the reference signal.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: February 18, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Hoon Chun, Jiho Song, Yoonmyung Lee, Jua Lee
  • Publication number: 20240232595
    Abstract: An electronic device with neural network circuitry is provided. The neural network circuit includes a synaptic memory cell including a memory element disposed along an output line and configured to, dependent on the memory element and an input signal applied to an input line, generate a column signal on the output line; a reference memory cell comprising a reference memory element disposed along a reference line, and configured to, dependent on the reference memory element and the input signal, generate a reference signal on the reference line; and a first neuron circuit configured to generate an output signal based on the column signal and the reference signal, and determine a start voltage of an integration to be performed based on the output signal in response to a previous firing by the first neuron circuit with respect to a previous input signal or another firing performed by a second neuron circuit.
    Type: Application
    Filed: June 14, 2023
    Publication date: July 11, 2024
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Jung-Hoon CHUN, Jiho SONG, Yoonmyung LEE, Jua LEE
  • Publication number: 20230186986
    Abstract: A device with a neural network includes: a synaptic memory cell comprising a resistive memory element, which is disposed along an output line and which has either one of a first resistance value and a second resistance value, and configured to generate a column signal based on the resistive memory element and an input signal in response to the input signal being received through an input line; a reference memory cell comprising a reference memory element, which is disposed along a reference line and which has the second resistance value different from the first resistance value, and configured to generate a reference signal based on the reference memory element and the input signal; and an output circuit configured to generate an output signal for the output line from the column signal and the reference signal.
    Type: Application
    Filed: June 1, 2022
    Publication date: June 15, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Jung-Hoon CHUN, Jiho SONG, Yoonmyung LEE, Jua LEE
  • Patent number: 11626143
    Abstract: An output driver includes a pre driver including pre driving circuits, each including first and second pre pumps, and a main driver including main driving circuits, each including first and second main pumps. Each of the first and second pre pumps includes a first driving capacitor, and each of the first and second main pumps includes a second driving capacitor. During a first half cycle of a clock signal, the first pre pump and the first main pump perform a precharge operation, and the second pre pump and the second main pump perform a first driving operation, and during a second half cycle of the clock signal, the first pre pump and the first main pump perform the first driving operation, and the second pre pump and the second main pump perform the precharge operation. Capacitances of the first and second driving capacitors are different.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: April 11, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Hyeran Kim, Junyeol Lee, Jung-Hoon Chun
  • Patent number: 11611362
    Abstract: A duobinary receiver includes a signal dividing circuit configured to output a plurality of data by dividing an input signal according to a plurality of multi-phase sampling clocks signals; a level detecting circuit configured to output a plurality of state signals respectively corresponding to duobinary levels of the plurality of data; and a data converting circuit configured to decode the plurality of state signals to output a corresponding plurality of bits.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: March 21, 2023
    Assignees: SK hynix Inc., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Dongsuk Kang, Jaewoo Park, Jung-Hoon Chun, Kyu Dong Hwang, Dae Han Kwon
  • Patent number: 11476885
    Abstract: A transceiver includes a duobinary conversion circuit configured to determine a level of an input signal which is a duobinary signal according to an intermediate voltage, a first reference voltage higher than the intermediate voltage, and a second reference voltage lower than the intermediate voltage, and to convert the input signal into a non-return-to-zero (NRZ) signal; and a control circuit configured to generate one or more control signals to substantially remove inter-symbol interference (ISI) between symbols of the input signal, and to adjust the first reference voltage, or the second reference voltage, or both according to the level of the input signal.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: October 18, 2022
    Assignees: SK hynix Inc., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Dongsuk Kang, Xuefan Jin, Jaewoo Park, Jung-Hoon Chun, Kyu Dong Hwang, Dae Han Kwon
  • Publication number: 20220254383
    Abstract: An output driver includes a pre driver including pre driving circuits, each including first and second pre pumps, and a main driver including main driving circuits, each including first and second main pumps. Each of the first and second pre pumps includes a first driving capacitor, and each of the first and second main pumps includes a second driving capacitor. During a first half cycle of a clock signal, the first pre pump and the first main pump perform a precharge operation, and the second pre pump and the second main pump perform a first driving operation, and during a second half cycle of the clock signal, the first pre pump and the first main pump perform the first driving operation, and the second pre pump and the second main pump perform the precharge operation. Capacitances of the first and second driving capacitors are different.
    Type: Application
    Filed: September 22, 2021
    Publication date: August 11, 2022
    Inventors: Hyeran KIM, Junyeol LEE, Jung-Hoon CHUN
  • Patent number: 11374570
    Abstract: A transmitter provides a duobinary signal corresponding to one of level 0, level 1, and level 2 based on first data and second data, and includes a pull-up driving circuit including a plurality of pull-up resistors selectively coupled between a first power source and a transmission node according to the first data and the second data; and a pull-down driving circuit including a plurality of pull-down resistors selectively coupled between the transmission node and a second power source, wherein at least one of the plurality of pull-up resistors is coupled between the first power source and the transmission node both when the first data is activated and when the second data is activated, or at least one of the plurality of pull-down resistors is coupled between the second power source and the transmission node both when the first data is activated and when the second data is activated.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: June 28, 2022
    Assignees: SK hynix Inc., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Dongsuk Kang, Jaewoo Park, Jung-Hoon Chun, Kyu Dong Hwang, Dae Han Kwon
  • Publication number: 20220166451
    Abstract: A duobinary receiver includes a signal dividing circuit configured to output a plurality of data by dividing an input signal according to a plurality of multi-phase sampling clocks signals; a level detecting circuit configured to output a plurality of state signals respectively corresponding to duobinary levels of the plurality of data; and a data converting circuit configured to decode the plurality of state signals to output a corresponding plurality of bits.
    Type: Application
    Filed: August 25, 2021
    Publication date: May 26, 2022
    Inventors: Dongsuk KANG, Jaewoo PARK, Jung-Hoon CHUN, Kyu Dong HWANG, Dae Han KWON
  • Patent number: 11146378
    Abstract: A signal receiving device may not need to consider jitter characteristics of a received signal by including a transition detecting device which receives first to third input signals having different signal levels for each unit interval, compares whether a signal level of a first differential signal, which is a differential signal between the first input signal and the second input signal among the first to third input signals, is greater than a first reference signal level to output a first comparison signal, and compares whether the signal level of the first differential signal is greater than a second reference signal level different from the first reference signal level to output a second comparison signal, and a clock data recovering device which recovers a clock signal embedded in the first to third input signals on the basis of the first and second comparison signals to output the recovery clock signal.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: October 12, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Tae-Jin Kim, Jung-Hoon Chun, Jae Youl Lee, Hyun Wook Lim
  • Publication number: 20210297107
    Abstract: A transceiver includes a duobinary conversion circuit configured to determine a level of an input signal which is a duobinary signal according to an intermediate voltage, a first reference voltage higher than the intermediate voltage, and a second reference voltage lower than the intermediate voltage, and to convert the input signal into a non-return-to-zero (NRZ) signal; and a control circuit configured to generate one or more control signals to substantially remove inter-symbol interference (ISI) between symbols of the input signal, and to adjust the first reference voltage, or the second reference voltage, or both according to the level of the input signal.
    Type: Application
    Filed: February 16, 2021
    Publication date: September 23, 2021
    Inventors: Dongsuk KANG, Xuefan JIN, Jaewoo PARK, Jung-Hoon CHUN, Kyu Dong HWANG, Dae Han KWON
  • Publication number: 20210091922
    Abstract: A signal receiving device may not need to consider jitter characteristics of a received signal by including a transition detecting device which receives first to third input signals having different signal levels for each unit interval, compares whether a signal level of a first differential signal, which is a differential signal between the first input signal and the second input signal among the first to third input signals, is greater than a first reference signal level to output a first comparison signal, and compares whether the signal level of the first differential signal is greater than a second reference signal level different from the first reference signal level to output a second comparison signal, and a clock data recovering device which recovers a clock signal embedded in the first to third input signals on the basis of the first and second comparison signals to output the recovery clock signal.
    Type: Application
    Filed: June 1, 2020
    Publication date: March 25, 2021
    Applicants: Samsung Electronics Co., Ltd., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Tae-Jin KIM, Jung-Hoon CHUN, Jae Youl LEE, Hyun Wook LIM
  • Patent number: 10848133
    Abstract: An oscillator includes a constant current generator configured to generate a constant current by maintaining a predetermined potential difference between both a first end and a second end of a resistor, and an oscillating element configured to output a clock signal corresponding to a charge and discharge cycle of a capacitor based on a bias current corresponding to the constant current.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: November 24, 2020
    Assignees: Samsung Electronics Co., Ltd., Research & Business Foundation Sungkyunkwan University
    Inventors: Jonghan Kim, Chisung Bae, Jaemin Choi, Yoonmyung Lee, Jung-Hoon Chun
  • Publication number: 20200184174
    Abstract: An electronic device, according to various embodiments of the present invention, may comprise: a pixel array consisting of an arrangement of pixels, each forming a capacitance corresponding to at least a portion of an object; a protective layer disposed on the pixel array; and guide walls formed and arranged within the protective layer, wherein the guide walls have a lower dielectric constant than other portions of the protective layer and may be arranged at an interval corresponding to at least the width of the width or length of each of the pixels. The electronic device as above may vary according to the embodiments.
    Type: Application
    Filed: April 23, 2018
    Publication date: June 11, 2020
    Inventors: Kyung-Hoon SONG, Jung-Hoon CHUN
  • Patent number: 10567124
    Abstract: A serial communication interface circuit includes a transmitter configured to convert first parallel data into first serial data and transmit the first serial data through an output port; a receiver configured to receive second serial data through an input port and convert the second serial data into second parallel data; a test controller configured to generate at least one test control signal; and an embedded external loopback circuit configured to form an external loopback path between the output port and the input port to receive the first serial data and output the second serial data according to at least one channel model in response to the at least one test control signal in a test mode.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: February 18, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION OF SUNGKYUNKWAN UNIVERSITY
    Inventors: Sung-Ha Kim, Jung-Hoon Chun
  • Publication number: 20190386615
    Abstract: An oscillator includes a constant current generator configured to generate a constant current by maintaining a predetermined potential difference between both a first end and a second end of a resistor, and an oscillating element configured to output a clock signal corresponding to a charge and discharge cycle of a capacitor based on a bias current corresponding to the constant current.
    Type: Application
    Filed: February 6, 2019
    Publication date: December 19, 2019
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Jonghan KIM, Chisung BAE, Jaemin CHOI, Yoonmyung LEE, Jung-Hoon CHUN