Patents by Inventor Jeong Eun SONG

Jeong Eun SONG 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: 20250055969
    Abstract: An image sensing device includes a first sampling circuit suitable for sampling a reference ramp signal as a ramp signal; a switching circuit suitable for sequentially outputting first and second pixel signals to a common node based on first and second control signals; a second sampling circuit suitable for sampling the first and second pixel signals, which are sequentially outputted through the common node, as a measurement signal; a comparison circuit suitable for comparing the ramp signal with the measurement signal and generating a comparison signal corresponding to a comparison result; and a count circuit suitable for generating a count signal, which corresponds to a voltage level of the measurement signal, based on the comparison signal and a clock signal.
    Type: Application
    Filed: October 28, 2024
    Publication date: February 13, 2025
    Inventors: Jeong Eun SONG, Oh Jun KWON, Yu Jin PARK, Sung Uk SEO, Min Seok SHIN, Sun Young LEE
  • Publication number: 20250055968
    Abstract: An image sensing device includes a first sampling circuit suitable for sampling a reference ramp signal as a ramp signal; a switching circuit suitable for sequentially outputting first and second pixel signals to a common node based on first and second control signals; a second sampling circuit suitable for sampling the first and second pixel signals, which are sequentially outputted through the common node, as a measurement signal; a comparison circuit suitable for comparing the ramp signal with the measurement signal and generating a comparison signal corresponding to a comparison result; and a count circuit suitable for generating a count signal, which corresponds to a voltage level of the measurement signal, based on the comparison signal and a clock signal.
    Type: Application
    Filed: October 28, 2024
    Publication date: February 13, 2025
    Inventors: Jeong Eun SONG, Oh Jun KWON, Yu Jin PARK, Sung Uk SEO, Min Seok SHIN, Sun Young LEE
  • Patent number: 12167157
    Abstract: Disclosed is an image sensor including a plurality of selection circuits each suitable for receiving two clock signals among an input clock signal and a plurality of delayed clock signals, and outputting, as each of a plurality of selection clock signals, one selection clock signal between the two clock signals on the basis of a control signal; and a plurality of buffer circuits suitable for generating the plurality of delayed clock signals on the basis of the plurality of selection clock signals outputted from the plurality of selection circuits.
    Type: Grant
    Filed: December 26, 2022
    Date of Patent: December 10, 2024
    Assignee: SK hynix Inc.
    Inventors: Sun Young Lee, Jeong Eun Song, Min Seok Shin
  • Patent number: 12166949
    Abstract: An image sensing device includes a first sampling circuit suitable for sampling a reference ramp signal as a ramp signal; a switching circuit suitable for sequentially outputting first and second pixel signals to a common node based on first and second control signals; a second sampling circuit suitable for sampling the first and second pixel signals, which are sequentially outputted through the common node, as a measurement signal; a comparison circuit suitable for comparing the ramp signal with the measurement signal and generating a comparison signal corresponding to a comparison result; and a count circuit suitable for generating a count signal, which corresponds to a voltage level of the measurement signal, based on the comparison signal and a clock signal.
    Type: Grant
    Filed: November 26, 2021
    Date of Patent: December 10, 2024
    Assignee: SK hynix Inc.
    Inventors: Jeong Eun Song, Oh Jun Kwon, Yu Jin Park, Sung Uk Seo, Min Seok Shin, Sun Young Lee
  • Publication number: 20240323568
    Abstract: Disclosed is an image sensor including first and second pixels arranged in a first row, for outputting first and second pixel signals through first and third column lines during a unit row time; third and fourth pixels arranged in a second row, for outputting third and fourth pixel signals through second and fourth column lines during the unit row time; an alignment circuit for aligning the first to fourth pixel signals for each row, and outputting first to fourth alignment signals, according to control signals; a first signal conversion circuit for generating a first depth information signal corresponding to a difference in voltage levels between the first and second alignment signals, through one A/D conversion operation; and a second signal conversion circuit for generating a second depth information signal, corresponding to a difference in voltage levels between the third and fourth alignment signals, through one A/D conversion operation.
    Type: Application
    Filed: September 13, 2023
    Publication date: September 26, 2024
    Inventors: Sun Young LEE, Jeong Eun SONG
  • Publication number: 20240192327
    Abstract: An image sensor includes at least two pixels and a control circuit. The control circuit is configured to provide a first modulation voltage and a second modulation voltage having a phase difference of 180 degrees from each other to each of the at least two pixels in a first mode. The control circuit is also configured to provide the first modulation voltage to a first pixel among the at least two pixels and provide the second modulation voltage to a second pixel among the at least two pixels in a second mode.
    Type: Application
    Filed: June 19, 2023
    Publication date: June 13, 2024
    Applicant: SK hynix Inc.
    Inventors: Sun Young LEE, Jeong Eun SONG
  • Publication number: 20240179433
    Abstract: Disclosed is an image sensing device including a first clock distributor suitable for receiving a first input clock signal through a first input terminal, and outputting a plurality of first output clock signals through a plurality of first output terminals, and a first conductive line coupled in common to the plurality of first output terminals.
    Type: Application
    Filed: February 5, 2024
    Publication date: May 30, 2024
    Inventors: Jeong Eun SONG, Min Seok SHIN, Yu Jin PARK, Sung Uk SEO, Sun Young LEE
  • Publication number: 20240129648
    Abstract: An image sensing device includes: a control circuit coupled between an output terminal of a pixel signal and a high voltage terminal, and configured to generate a control voltage corresponding to a voltage level of the pixel signal; and a current supplying circuit coupled between the output terminal and the high voltage terminal, and configured to supply a pre-charge current, which is configured to be adaptively adjusted according to the voltage level of the pixel signal, to the output terminal based on the control voltage.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 18, 2024
    Inventors: Yu Jin PARK, Nam Ryeol KIM, Kang Bong SEO, Jeong Eun SONG, Jung Soon SHIN, Seung Hwan LEE
  • Patent number: 11950008
    Abstract: Disclosed is an image sensing device including a first clock distributor suitable for receiving a first input dock signal through a first input terminal, and outputting a plurality of first output clock signals through a plurality of first output terminals, and a first conductive line coupled in common to the plurality of first output terminals.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: April 2, 2024
    Assignee: SK hynix Inc.
    Inventors: Jeong Eun Song, Min Seok Shin, Yu Jin Park, Sung Uk Seo, Sun Young Lee
  • Publication number: 20240107193
    Abstract: Disclosed is an image sensor including a buffer circuit suitable for generating, based on at least one first signal, at least one second signal controlled during each of settling and comparison periods, a comparison circuit suitable for using an operating current having a relatively high level during the settling period and a relatively low level during the comparison period based on the second signal, and comparing a pixel signal with a ramp signal during the comparison period to generate a comparison signal.
    Type: Application
    Filed: April 4, 2023
    Publication date: March 28, 2024
    Inventors: Yu Jin PARK, Jeong Eun SONG
  • Patent number: 11895418
    Abstract: An image sensing device includes: a control circuit coupled between an output terminal of a pixel signal and a high voltage terminal, and configured to generate a control voltage corresponding to a voltage level of the pixel signal; and a current supplying circuit coupled between the output terminal and the high voltage terminal, and configured to supply a pre-charge current, which is configured to be adaptively adjusted according to the voltage level of the pixel signal, to the output terminal based on the control voltage.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: February 6, 2024
    Assignee: SK hynix Inc.
    Inventors: Yu Jin Park, Nam Ryeol Kim, Kang Bong Seo, Jeong Eun Song, Jung Soon Shin, Seung Hwan Lee
  • Publication number: 20230412948
    Abstract: Disclosed is an image sensor including a plurality of selection circuits each suitable for receiving two clock signals among an input clock signal and a plurality of delayed clock signals, and outputting, as each of a plurality of selection clock signals, one selection clock signal between the two clock signals on the basis of a control signal; and a plurality of buffer circuits suitable for generating the plurality of delayed clock signals on the basis of the plurality of selection clock signals outputted from the plurality of selection circuits.
    Type: Application
    Filed: December 26, 2022
    Publication date: December 21, 2023
    Inventors: Sun Young LEE, Jeong Eun SONG, Min Seok SHIN
  • Patent number: 11842424
    Abstract: Disclosed is an image sensing device including a plurality of current cells whose total number to be used is adjusted based on a plurality of enable signals, and which are sequentially controlled based on a reset signal and a plurality of selection signals; a current-voltage conversion circuit suitable for converting a plurality of unit currents, which are supplied from current cells used among the plurality of current cells, into a ramp signal; and a first control circuit suitable for generating the plurality of enable signals based on a maximum conversion code value corresponding to a slope of the ramp signal.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: December 12, 2023
    Assignee: SK hynix Inc.
    Inventors: Jeong Eun Song, Yu Jin Park, Min Seok Shin
  • Publication number: 20230284439
    Abstract: A semiconductor memory device includes a substrate including a trench and a contact recess, a direct contact placed inside the trench and having a width smaller than a width of the trench, a bit line structure placed on the direct contact and having a width smaller than the width of the trench, a spacer structure placed on side surfaces of the direct contact and the bit line structure, and a buried contact spaced apart from the direct contact and the bit line structure by the spacer structure and filling the contact recess. The spacer structure includes an oxide film placed between the direct contact and the buried contact inside the trench, a seed layer placed on the oxide film inside the trench between the direct contact and the buried contact, and a bulk layer filling the trench on the seed layer and including silicon nitride. The seed layer includes carbon.
    Type: Application
    Filed: May 15, 2023
    Publication date: September 7, 2023
    Inventors: Chang Woo SEO, Hyun-Chul SHIM, Da In LEE, Su Youn SONG, Jeong Eun SONG, Won Seok YOO
  • Patent number: 11743617
    Abstract: An image sensor includes: a pixel of a first tab; a pixel of a second tab; an operation amplifier suitable for comparing, in a comparison operation, a pixel signal of the first tab and a pixel signal of the second tab with each other to produce a comparison result, receiving, in an auto-zeroing operation, a ramp voltage and a selected pixel signal which is selected based on the comparison result between the pixel signal of the first tab and the pixel signal of the second tab, and receiving, in an analog-to-digital conversion operation, the ramp voltage and an unselected pixel signal which is not selected from the pixel signal of the first tab and the second pixel signal of the second tab; and a counter circuit suitable for generating a digital code based on an output of the operation amplifier.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: August 29, 2023
    Assignee: SK hynix Inc.
    Inventors: Hoo Chan Lee, Min Seok Shin, Sung Uk Seo, Jeong Eun Song
  • Patent number: 11675079
    Abstract: An image sensing device includes an optical emitter outputting a modulated signal to a target object; an optical receiver generating, according to a phase control signal, pixel signals corresponding to a reflected signal from the target object; an image processor calculating a depth phase based on the pixel signals and compensating for the depth phase according to a phase offset signal to output a depth information signal; a driving control circuit generating the phase control signal corresponding to a phase of the modulated signal and setting an initial phase difference between the modulated signal and the phase control signal according to the phase offset signal; and an offset calculating circuit setting a plurality of reference phases, selecting a reference phase closest to the depth phase among the set reference phases and generating the phase offset signal representing a phase difference between the selected reference phase and the depth phase.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: June 13, 2023
    Assignee: SK hynix Inc.
    Inventors: Hak Soon Kim, Han Sang Kim, Jeong Eun Song, Min Seok Shin
  • Patent number: 11647308
    Abstract: An analog-to-digital converting circuit includes: an analog-to-digital converter suitable for performing an analog-to-digital conversion on pixel signals of a plurality of pixels provided in a pixel array; a ramp signal generator suitable for providing a ramp signal to the analog-to-digital converter; and an auto-zero controller suitable for providing a reference voltage to the analog-to-digital converter to perform an auto-zeroing operation by using a row pixel for which a readout operation is performed by the analog-to-digital converter.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: May 9, 2023
    Assignee: SK hynix Inc.
    Inventors: Jin Uk Jeon, Oh Jun Kwon, Jin Seon Kim, Hak Soon Kim, Han Sang Kim, Kang Bong Seo, Sung Uk Seo, Jeong Eun Song, Min Seok Shin, Sun Young Lee, Eun Chang Lee, Hoo Chan Lee
  • Patent number: 11611717
    Abstract: An image sensing device includes at least one unit pixel including a plurality of pixels for generating a plurality of pixel signals based on a plurality of control signals having different phases, and an equalizing circuit suitable for equalizing noise that occurs in the plurality of pixels during a reset operation on the unit pixel.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: March 21, 2023
    Assignee: SK hynix Inc.
    Inventors: Yu Jin Park, Jeong Eun Song, Kang Bong Seo, Min Seok Shin, Jae Hyung Jang
  • Publication number: 20220368846
    Abstract: An analog-to-digital converting circuit includes: an analog-to-digital converter suitable for performing an analog-to-digital conversion on pixel signals of a plurality of pixels provided in a pixel array; a ramp signal generator suitable for providing a ramp signal to the analog-to-digital converter; and an auto-zero controller suitable for providing a reference voltage to the analog-to-digital converter to perform an auto-zeroing operation by using a row pixel for which a readout operation is performed by the analog-to-digital converter.
    Type: Application
    Filed: January 12, 2022
    Publication date: November 17, 2022
    Inventors: Jin Uk JEON, Oh Jun KWON, Jin Seon KIM, Hak Soon KIM, Han Sang KIM, Kang Bong SEO, Sung Uk SEO, Jeong Eun SONG, Min Seok SHIN, Sun Young LEE, Eun Chang LEE, Hoo Chan LEE
  • Patent number: 11502697
    Abstract: An analog-to-digital converter circuit includes: a first operation amplifier suitable for comparing a ramp voltage and a voltage to be converted so as to produce an amplification result and outputting the amplification result; a second operation amplifier suitable for comparing the amplification result transferred to a first input terminal with a reference voltage transferred to a second input terminal so as to produce a comparison result and outputting the comparison result; a leakage current measurer suitable for measuring a leakage current to the first input terminal; and a leakage current generator suitable for causing a current of the same amount as that of the leakage current measured by the leakage current measurer to flow to the second input terminal.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: November 15, 2022
    Assignee: SK hynix Inc.
    Inventors: Sung Uk Seo, Han Sang Kim, Yu Jin Park, Jeong Eun Song, Min Seok Shin