Patents by Inventor Choongho RHEE

Choongho RHEE 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: 12289095
    Abstract: A filter system includes a first resonator having a first resonant frequency, and a second resonator having a second resonant frequency different from the first resonant frequency, and electrically connected to the first resonator. A first response characteristic of the first resonator and a second response characteristic of the second resonator with respect to a frequency include a first section in which a first phase of the first resonator is equal to a second phase of the second resonator, and a second section in which the first phase is different from the second phase by 180 degrees. A first electrode of the first resonator is reversely connected to a second electrode of the second resonator.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: April 29, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungchan Kang, Cheheung Kim, Sangha Park, Yongseop Yoon, Choongho Rhee
  • Publication number: 20240230412
    Abstract: An infrared sensor includes a substrate, a reflective layer on an upper surface of the substrate, and a composite layer including an absorption layer including a nanostructure and configured to absorb light energy and a sensing layer including a plurality of temperature sensing cells, where the composite layer is above the upper surface of the substrate, and where the infrared ray sensor further includes a resonant cavity between the composite layer and the reflective layer.
    Type: Application
    Filed: June 26, 2023
    Publication date: July 11, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jangwoo YOU, Jinmyoung Kim, Wontaek Seo, Byonggwon Song, Yongseop Yoon, Duhyun Lee, Choongho Rhee
  • Publication number: 20240142311
    Abstract: Provided are a long-wave infrared sensor and an electronic device including the same. The long-wave infrared sensor and the electronic device including the same include a pixel array including a plurality of pixels, an optical absorber layer arranged on the pixel array, and a drive circuit configured to drive the pixel array, wherein each of the plurality of pixels for a long-wave infrared sensor includes a lower electrode and an upper electrode which are arranged apart from each other, and a plurality of magnetic tunnel junction devices arranged regularly between the lower electrode and the upper electrode and electrically connected to each other in parallel, and the plurality of magnetic tunnel junction devices are arranged apart from each other with an empty space therebetween.
    Type: Application
    Filed: June 28, 2023
    Publication date: May 2, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinmyoung Kim, Choongho Rhee, Byonggwon Song, Yongseop Yoon, Jaekwan Kim, Jangwoo You, Byungkyu Lee
  • Patent number: 11973485
    Abstract: Provided is a micromechanical resonator including a support beam including a first portion supported on a support member and a second portion spaced apart from the first portion in a length direction of the support beam, and a piezoelectric sensing portion provided between the first portion and the second portion and connecting the first portion to the second portion.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: April 30, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yongseop Yoon, Sungchan Kang, Cheheung Kim, Choongho Rhee
  • Publication number: 20240121524
    Abstract: A thermal image sensor includes a substrate; a composite layer including an absorption layer and a sensor array layer provided below the absorption layer, the sensor array layer including a plurality of temperature sensing cells, the composite layer having a pattern formed therein, and the pattern including at least one hole penetrating through the absorption layer; and a support separating the substrate from the composite layer.
    Type: Application
    Filed: June 15, 2023
    Publication date: April 11, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Choongho RHEE, Byonggwon SONG, Jangwoo YOU, Jaekwan KIM, Jinmyoung KIM, Wontaek SEO, Yongseop YOON, Byungkyu LEE
  • Patent number: 11955510
    Abstract: A capacitor structure includes at least one first layer and at least one second layer that are alternately stacked. The at least one first layer includes first electrodes and second electrodes alternately arranged in a first direction, and the at least one second layer includes third electrodes and fourth electrodes alternately arranged in a second direction intersecting the first direction, the third electrodes and the fourth electrodes being electrically connected to the first electrodes and the second electrodes. Each of the first electrodes and the second electrodes includes a base portion and branch portions protruding from the base portion, and the third electrodes and the fourth electrodes are arranged side by side to correspond to the branch portions.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: April 9, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeokki Hong, Cheheung Kim, Sungchan Kang, Yongseop Yoon, Choongho Rhee
  • Patent number: 11895922
    Abstract: An etching method for forming a vertical structure is provided. The etching method may include: positioning a mask on a substrate, wherein the mask includes an opening pattern and a compensation pattern, and the compensation pattern is disposed at a corner of two adjacent sides of the opening pattern and includes a concave compensation pattern that is indented from one of the two adjacent sides; and forming the vertical structure on the substrate through the opening pattern of the mask by a dry etching process.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: February 6, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Choongho Rhee, Sungchan Kang, Yongseop Yoon
  • Patent number: 11887606
    Abstract: Provided are a method and device for recognizing a speaker by using a resonator. The method of recognizing the speaker includes receiving a plurality of electrical signals corresponding to a speech of the speaker from a plurality of resonators having different resonance bands; obtaining a difference of magnitudes of the plurality of electrical signals; and recognizing the speaker based on the difference of magnitudes of the plurality of electrical signals.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: January 30, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cheheung Kim, Sungchan Kang, Sangha Park, Yongseop Yoon, Choongho Rhee
  • Patent number: 11852737
    Abstract: Provided is a directional acoustic sensor including a support member, and a plurality of resonators extending in a longitudinal direction with respect to the support member, wherein each of the plurality of resonators includes a driver configured to move based on an input sound signal, and a sensor configured to sense a capacitance change based on an air gap that changes based on a movement of the driver.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: December 26, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungchan Kang, Cheheung Kim, Choongho Rhee, Hyeokki Hong
  • Patent number: 11770658
    Abstract: Provided is a sensor interface including a first cantilever beam bundle including at least one resonator and a first output terminal, a second cantilever beam bundle including at least one resonator and a second output terminal, and a differential amplifier including a first input terminal electrically connected to the first output terminal of the first cantilever beam bundle and a second input terminal electrically connected to the second output terminal of the second cantilever beam bundle.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: September 26, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunwook Kang, Sungchan Kang, Cheheung Kim, Choongho Rhee, Hyeokki Hong
  • Patent number: 11725981
    Abstract: Disclosed are a directional acoustic sensor, a method of adjusting directional characteristics using the directional acoustic sensor, and a method of attenuating an acoustic signal in a specific direction using the directional acoustic sensor. The directional acoustic sensor includes a plurality of resonance units arranged to have different directionalities and a signal processor configured to adjust directional characteristics by calculating at least one of a sum of and a difference between outputs of the resonance units. In this state, the signal processor attenuates an acoustic signal in a specific direction by using a plurality of directional characteristics obtained by calculating at least one of the sum of and the difference between the outputs of the resonance units at a certain ratio.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: August 15, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungchan Kang, Cheheung Kim, Choongho Rhee, Hyeokki Hong
  • Publication number: 20230212001
    Abstract: Provided is a micro electro-mechanical system (MEMS) sensor including a substrate including a first cavity, a first frame including a second cavity at least partially overlapping the first cavity, at least a portion of the first frame being spaced apart from the substrate, a plurality of resonators, each of the plurality of resonators including a first end connected to the first frame and a second end extending into the second cavity, and a second frame including a first region connected to the first frame and a second region spaced apart from the first frame and connected to the substrate.
    Type: Application
    Filed: September 9, 2022
    Publication date: July 6, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Choongho RHEE, Sungchan KANG, Cheheung KIM, Yongseop YOON
  • Publication number: 20230176159
    Abstract: Provided is a directional acoustic sensor including a support member, and a plurality of resonators extending in a longitudinal direction with respect to the support member, wherein each of the plurality of resonators includes a driver configured to move based on an input sound signal, and a sensor configured to sense a capacitance change based on an air gap that changes based on a movement of the driver.
    Type: Application
    Filed: May 16, 2022
    Publication date: June 8, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungchan KANG, Cheheung KIM, Choongho RHEE, Hyeokki HONG
  • Publication number: 20230152411
    Abstract: A directional acoustic sensor includes: a support including a first support portion and a second support portion that are separated from each other and face each other; a plurality of first resonators extending in a length direction thereof from the first support portion of the support; and a plurality of second resonators extending in the length direction thereof from the second support portion of the support and facing the plurality of first resonators, wherein each first resonator of the plurality of first resonators has a first end, wherein each second resonator of the plurality of second resonators has a second end, and wherein, in a first resonator arrangement of a region where the plurality of first resonators and the plurality of second resonators face each other, the first ends of the plurality of first resonators and the second ends of the plurality of second resonators form an intersecting structure.
    Type: Application
    Filed: April 28, 2022
    Publication date: May 18, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungchan KANG, Cheheung KIM, Choongho RHEE
  • Patent number: 11632623
    Abstract: A compact directional acoustic sensor having an improved signal-to-noise ratio is disclosed. The disclosed directional acoustic sensor includes a first sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one first output signal having a first polarity based on external energy received from an input direction; a second sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one second output signal having a second polarity, that is different than the first polarity, based on the external energy received from the input direction; and at least one signal processor configured to generate at least one final output signal based on the at least one first output signal and the at least one second output signal.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: April 18, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cheheung Kim, Sungchan Kang, Hyeokki Hong, Hyunwook Kang, Yongseop Yoon, Choongho Rhee
  • Patent number: 11627410
    Abstract: A compact directional acoustic sensor having an improved signal-to-noise ratio is disclosed. The disclosed directional acoustic sensor includes a first sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one first output signal having a first polarity based on external energy received from an input direction; a second sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one second output signal having a second polarity, that is different than the first polarity, based on the external energy received from the input direction; and at least one signal processor configured to generate at least one final output signal based on the at least one first output signal and the at least one second output signal.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: April 11, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cheheung Kim, Sungchan Kang, Hyeokki Hong, Hyunwook Kang, Yongseop Yoon, Choongho Rhee
  • Publication number: 20230103757
    Abstract: Provided are a resonator, a method of manufacturing the resonator, and a strain sensor and a sensor array including the resonator. The resonator is provided to extend in a lengthwise direction from a support. The resonator includes a single crystal material and is provided to extend in a crystal orientation that satisfies at least one from among a Young's modulus and a Poisson's ratio, from among crystal orientations of the single crystal material.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 6, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Cheheung Kim, Sungchan Kang, Choongho Rhee, Yongseop Yoon, Hyeokki Hong
  • Patent number: 11540077
    Abstract: Provided are a directional acoustic sensor that detects a direction of sound, a method of detecting a direction of sound, and an electronic device including the directional acoustic sensor. The directional acoustic sensor includes a sound inlet through which a sound is received, a sound outlet through which the sound received through the sound inlet is output, and a plurality of vibration bodies arranged between the sound inlet and the sound outlet, in which one or more of the plurality of vibration bodies selectively react to the sound received by the sound inlet according to a direction of the received sound.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: December 27, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cheheung Kim, Sungchan Kang, Yongseop Yoon, Choongho Rhee, Sangha Park, Hyeokki Hong
  • Publication number: 20220268624
    Abstract: Disclosed are a directional acoustic sensor, a method of adjusting directional characteristics using the directional acoustic sensor, and a method of attenuating an acoustic signal in a specific direction using the directional acoustic sensor. The directional acoustic sensor includes a plurality of resonance units arranged to have different directionalities and a signal processor configured to adjust directional characteristics by calculating at least one of a sum of and a difference between outputs of the resonance units. In this state, the signal processor attenuates an acoustic signal in a specific direction by using a plurality of directional characteristics obtained by calculating at least one of the sum of and the difference between the outputs of the resonance units at a certain ratio.
    Type: Application
    Filed: May 10, 2022
    Publication date: August 25, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungchan KANG, Cheheung KIM, Choongho RHEE, Hyeokki HONG
  • Publication number: 20220270615
    Abstract: Provided are a method and device for recognizing a speaker by using a resonator. The method of recognizing the speaker includes receiving a plurality of electrical signals corresponding to a speech of the speaker from a plurality of resonators having different resonance bands; obtaining a difference of magnitudes of the plurality of electrical signals; and recognizing the speaker based on the difference of magnitudes of the plurality of electrical signals.
    Type: Application
    Filed: May 10, 2022
    Publication date: August 25, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cheheung KIM, Sungchan Kang, Sangha Park, Yongseop Yoon, Choongho Rhee