Patents by Inventor Jin-Woo Choi

Jin-Woo Choi 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: 20230329566
    Abstract: An apparatus for estimating blood pressure includes: a photoplethysmogram (PPG) sensor configured to measure a PPG signal from an object; a force sensor configured to measure a force signal acting between the object and the PPG sensor; and a processor configured to (i) divide a predetermined blood pressure range into a plurality of classes, (ii) input the measured PPG signal and the measured force signal into a blood pressure estimation model to obtain the probability values for each of the classes, and (iii) estimate blood pressure based on the obtained probability values for the respective classes.
    Type: Application
    Filed: October 18, 2022
    Publication date: October 19, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Sang Kon BAE, Joon-Hyuk CHANG, Youn Ho KIM, Jin Woo CHOI, Jehyun KYUNG, Joon-Young YANG, Ye-Rin JEOUNG, Jeong-Hwan CHOI
  • Patent number: 11786180
    Abstract: An apparatus for estimating bio-information is provided. The apparatus for estimating bio-information may include: a pulse wave sensor configured to measure a pulse wave signal from an object; a force sensor configured to measure a force exerted by the object to the pulse wave sensor; and a processor configured to obtain a contact pressure based on the force and a reference contact area between the object and a contact surface, and estimate bio-information based on the contact pressure and the pulse wave signal.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: October 17, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Min Kang, Yong Joo Kwon, Youn Ho Kim, Sang Yun Park, Jin Woo Choi
  • Publication number: 20230301593
    Abstract: Provided i an apparatus configured to estimate an optical-based force, the apparatus including a main body, a cover disposed at a first side of the main body and configured to contact an object, a support part connected to two sides of the cover, supporting the cover, and protruding toward an inside of the main body, and an optical sensor disposed on the support part, the optical sensor including a light source configured to emit light onto a reflector, a detector configured to detect light reflected from the reflector, and a circuit unit configured to estimate a contact force of the object based on the detected light.
    Type: Application
    Filed: July 18, 2022
    Publication date: September 28, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung Hoon KO, Seung Woo NOH, Tak Hyung LEE, Sang Yun PARK, Jin Woo CHOI
  • Publication number: 20230263412
    Abstract: An apparatus for estimating bio-information, may include: a main body; a photoplethysmogram (PPG) sensor disposed in the main body and configured to measure a PPG signal from an object of a user; an internal pressure sensor disposed in a closed space formed in the main body, and configured to measure a pressure applied to the closed space when the object applies force to a surface of the main body; and a processor configured to estimate the bio-information of the user based on the PPG signal and the pressure applied to the closed space.
    Type: Application
    Filed: May 19, 2022
    Publication date: August 24, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tak Hyung LEE, Byung Hoon KO, Seung Woo NOH, Sang Yun PARK, Jin Woo CHOI
  • Publication number: 20230251043
    Abstract: Provided is a thermoelectric cooling device comprising: a thermoelectric module; a heat sink having a body, which has on one side a contact surface coming into contact with a heating side of the thermoelectric module, and a plurality of heat dissipation fins, and emitting the heat transferred from the heating side of the thermoelectric module; a heat pipe coupled to a mounting groove which is formed on the contact surface of the heat sink, and for transferring heat by means of a working fluid stored therein; and a cooling fan for forming the airflow to the heat sink, wherein the heat pipe comprises a plurality of corner-extension heat pipes extending to a corner area of the heat sink from the central part of the heat sink on which the thermoelectric module is installed, and the shape of the mounting groove corresponds to the shape of the corner-extension heat pipes.
    Type: Application
    Filed: June 10, 2021
    Publication date: August 10, 2023
    Applicant: COWAY Co., Ltd.
    Inventors: Byung-Hyo YE, Jung-Hwan LEE, Jae-Man KIM, Min-Chul YONG, Chung-Lae KIM, Jin-Hyeok JANG, Young-Kwang CHOI, Jin-Woo CHOI, Seong-Min PARK, Young-Jae LEE, Sang-Jin YOUN
  • Publication number: 20230234828
    Abstract: An ice-making water purifier includes a water tank unit, an instantaneous heating device, an extraction member, an ice-maker, a supply pump, an ice-making water inlet passage, an ice-making water supply valve, a flow rate sensor, and a controller configured to control driving of the supply pump and the opening and closing of the ice-making water supply valve such that purified water corresponding to a predetermined supply amount of ice-making water is supplied to the ice-maker on the basis of a flow rate value measured by the flow rate sensor. The controller controls the opening and closing of the channel such that purified water is preferentially supplied to the instantaneous heating device among the instantaneous heating device and the ice-maker.
    Type: Application
    Filed: May 18, 2021
    Publication date: July 27, 2023
    Applicant: COWAY CO., Ltd
    Inventors: Min-Suk CHANG, Yong-Yeon NOH, Woo-Jin JOO, Myeong-Hoon KANG, Ki-Hong MIN, Jin-Woo CHOI, Young-Jae LEE, Dong-Hui KIM, Sang-Jin YOUN, Gyeong-Jong KIM
  • Publication number: 20230218183
    Abstract: An apparatus for estimating bio-information according to an embodiment includes: a sensor that measures a pulse wave signal from an object and contact pressure of the object; and a processor that obtains an oscillometric envelope based on an amplitude of the pulse wave signal and the contact pressure, and estimates bio-information based on a center of mass of a phase of contact pressure of the obtained oscillometric envelope.
    Type: Application
    Filed: March 8, 2023
    Publication date: July 13, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Min KANG, Yong Joo KWON, Youn Ho KIM, Sang Yun PARK, Jin Woo CHOI
  • Patent number: 11696727
    Abstract: The present disclosure relates to technology for estimating bio-information by using a foldable electronic device. The foldable electronic device includes a main body part, having a first main body and a second main body, configured to fold along a folding line; a first sensor provided on the first main body, and configured to obtain a contact image of an object of a user; a second sensor provided on the first main body, and configured to measure a degree of folding of the main body part; and a processor configured to estimate bio-information of the user, based on the contact image of the object and the degree of folding.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: July 11, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Min Kang, Seung Woo Noh, Sang Yun Park, Jin Woo Choi
  • Publication number: 20230200665
    Abstract: An apparatus for estimating blood pressure includes: a sensor, and a processor configured to estimate blood pressure based on a PPG signal and a contact pressure signal measured by the sensor. The sensor includes: a transparent elastic body; a first polarizing film provided on a surface of the transparent elastic body and configured to come into contact with the object; a light source provided under the transparent elastic body and configured to emit light toward the object; a first detector and a second detector provided under the transparent elastic body and configured to detect light, passing through the first polarizing film after being emitted by the light source and scattered or reflected from the object, to measure the PPG signal; and a second detector provided under the transparent elastic body and configured to detect light, not passing through the first polarizing film, to measure the contact pressure signal.
    Type: Application
    Filed: May 19, 2022
    Publication date: June 29, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Yun PARK, Jae Min KANG, Tak Hyung LEE, Byung Hoon KO, Seung Woo NOH, Jin Woo CHOI
  • Publication number: 20230200731
    Abstract: A wearable device includes a main body, a force sensor disposed on one surface of the main body and configured to measure a force, and a processor configured to control the force sensor to measure a first force when the one surface of the main body faces upwards, control the force sensor to measure a second force sensor when the one surface of the main body faces downward, and calibrate the force sensor based on at least one of the measured first force and the measured second force.
    Type: Application
    Filed: May 19, 2022
    Publication date: June 29, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Yun PARK, Jae Min KANG, Byung Hoon KO, Seung Woo NOH, Jin Woo CHOI
  • Publication number: 20230191329
    Abstract: Provided is a water purifier comprising: a filter unit which has a reverse osmosis membrane filter; a supply valve; an instantaneous heating device which is provided with an inflow port, and an outflow port, and which heats and purified water entering through the inflow port and flowing to the outflow port, so that hot water is discharged through the outflow port; an extraction member; a supply pump; a domestic water drain line; a hot water drain line; a hot water drain valve; and a control unit which controls the opening/closing of respective flow channels of the hot water drain line and the domestic water drain line so that, among a hot water draining process through the hot water drain line, and a domestic water draining process through the domestic water drain line, the hot water draining process is carried out first.
    Type: Application
    Filed: May 18, 2021
    Publication date: June 22, 2023
    Applicant: COWAY Co., Ltd.
    Inventors: Min-Suk CHANG, Yong-Yeon NOH, Woo-Jin JOO, Myeong-Hoon KANG, Ki-Hong MIN, Jin-Woo CHOI, Young-Jae LEE, Dong-Hui KIM, Sang-Jin YOUN, Gyeong-Jong KIM
  • Patent number: 11682659
    Abstract: A display device and a method of fabricating the same are disclosed, the display device includes a first metal layer on a substrate; light emitting elements emitting light of a first color, each of the light emitting elements having a first end contacting the first metal layer; an insulating layer disposed on the first metal layer and including holes exposing a second end of each of the light emitting elements facing the first metal layer; and a light conversion layer disposed in at least one of the holes and overlapping the light emitting elements. The light conversion layer converts the light of the first color emitted from the light emitting elements into light of a second color.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: June 20, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyung Il Jeon, Min Woo Kim, Dae Ho Song, Jin Woo Choi
  • Patent number: 11670280
    Abstract: An urban air mobility (UAM) noise reduction system and method are provided, where the UAM noise reduction system includes a UAM configured to detect and to provide rotation per minute (RPM) information of a propeller and location coordinate information, and a noise canceling device configured to predict a noise canceling sound wave amplitude on the basis of the RPM information of the propeller and the location coordinate information received through the UAM and to output a noise canceling sound wave corresponding to the predicted noise canceling sound wave amplitude to the UAM.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: June 6, 2023
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Yeong Woo Seo, Ju Seong Yu, Jin Woo Choi
  • Publication number: 20230152584
    Abstract: A display device for providing includes a display part outputting display light for displaying an image, an optical part forming a path of the display light so that the image is displayed on a transparent lens, and sensing a change in the amount of light according to a user's touch on the path of the display light outputting light amount detection signals, and a controller analyzing changes in the magnitude of the light amount detection signals to sense the user's touch, and activating a user interface function based on sensing results.
    Type: Application
    Filed: July 25, 2022
    Publication date: May 18, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Sung Kook PARK, Young Seok SEO, Sung Eun BAEK, Tae Hee LEE, Jin Woo CHOI
  • Publication number: 20230146518
    Abstract: A display device includes bank patterns disposed on a substrate, a light emitting element disposed between the bank patterns on the substrate, and a color wheel disposed on the light emitting element. The light emitting element and the bank patterns include a same material.
    Type: Application
    Filed: June 30, 2022
    Publication date: May 11, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Jin Woo CHOI, Sung Kook PARK, Sung Eun BAEK, Dae Ho SONG, Hyung Il JEON, Byeong Hwa CHOI
  • Patent number: 11642089
    Abstract: An apparatus for calibrating a bio-information estimation model is provided. The apparatus for calibrating a bio-information estimation model includes: a data obtainer configured to obtain at least one pulse wave signal; and a processor configured to extract a plurality of feature sets, each feature set including one or more features, from each of the at least one pulse wave signal, and configured to calibrate a bio-information estimation model based on a correlation distribution of the extracted plurality of feature sets.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: May 9, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Keun Yoon, Seung Woo Noh, Chang Soon Park, Jin Woo Choi
  • Publication number: 20230135600
    Abstract: A light emitting element, a display device including the same, and method of fabricating the display device are provided. The display device including a pixel electrode on a substrate, a light emitting element on the pixel electrode, and including a first semiconductor layer, an active layer on the first semiconductor layer, and a second semiconductor layer on the active layer, a connection electrode layer between the light emitting element and the pixel electrode, and directly contacting the pixel electrode, an insulating layer on the substrate and the pixel electrode, and surrounding the light emitting element, and a common electrode on the insulating layer directly contacting the second semiconductor layer of the light emitting element.
    Type: Application
    Filed: June 15, 2022
    Publication date: May 4, 2023
    Inventors: Jin Taek PARK, Duk Sung KIM, Soo Chul KIM, Dae Ho SONG, Byeong Hwa CHOI, Jin Woo CHOI
  • Publication number: 20230130494
    Abstract: An apparatus for estimating bio-information is provided. The apparatus for estimating bio-information according to an embodiment includes: an ultrasonic sensor configured to acquire a bio-signal from an object; and a processor configured to detect peaks from the bio-signal, and to determine false detection of a peak, among the detected peaks, by using at least one of a time interval between a current peak and an immediately preceding peak, amplitudes of the current peak and the immediately preceding peak, a shape of a waveform on a left region and a right region of the peak, and an occurrence position of the peak.
    Type: Application
    Filed: January 31, 2022
    Publication date: April 27, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun KWON, Jae Min KANG, Youn Ho KIM, Sang Kon BAE, Jin Woo CHOI, Chang Mok CHOI
  • Publication number: 20230131673
    Abstract: An apparatus for estimating bio-information is provided. The apparatus for estimating bio-information by using an ultrasonic signal according to an embodiment of the present disclosure includes: an ultrasonic sensor configured to acquire an ultrasonic signal from an object; and a processor configured to detect peaks from the acquired ultrasonic signal, and to determine false detection of a peak, among the detected peaks, by using at least one of amplitudes of the detected peaks or a left waveform shape and a right waveform shape of the peak.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 27, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun KWON, Jae Min KANG, Youn Ho KIM, Sang Kon BAE, Jin Woo CHOI, Chang Mok CHOI
  • Publication number: 20230127169
    Abstract: The present invention relates to an anti-tumor adenovirus and an anticancer composition comprising same. Double-stranded siRNA of the present invention simultaneously inhibits the expression of a first nucleic acid and a second nucleic acid, thus promoting the death of cancer cells, exhibits more remarkable anticancer activity as compared to co-treatment of respective siRNAs, has a synergistic effect of improving cancer cell death in combined treatment with an anticancer agent. The adenovirus comprising a shRNA-encoding expression cassette expressing the double-stranded siRNA, and a hTERT promoter evades immune responses in the body and is specifically delivered to cancer cells, thus having a systemic therapeutic effect, can be locally delivered, has excellent selectivity, and exhibits a significant anticancer effect even in minimally invasive treatment, and thus, the adenovirus can be effectively used as an anticancer composition or an anticancer adjuvant in various carcinomas.
    Type: Application
    Filed: March 22, 2021
    Publication date: April 27, 2023
    Applicant: CURIGIN CO.,LTD.
    Inventors: Jin-Woo CHOI, Seong-Hoon PARK, Goughnour PETER CHARLES, Jung-Ki YOO, Chung-Gab CHOI, Ki-Hwan UM, Eui-Jin LEE, Hyung-Been LEE