Patents by Inventor Ji Hyun Yoon

Ji Hyun Yoon 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: 9453932
    Abstract: A mobile terminal device for a positioning system based on a magnetic field map and a method thereof, are provided. The mobile terminal includes a memory configured to store a magnetic field map including magnetic field values at positions. The mobile terminal further includes a magnetic field sensor configured to measure a magnetic field value at a position of the mobile terminal. The mobile terminal further includes an inertial measurement unit (IMU) sensor configured to measure an acceleration value and a gyro value of the mobile terminal. The mobile terminal further includes a processor configured to determine the position of the mobile terminal based on the magnetic field map, the magnetic field value, the acceleration value, and the gyro value.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: September 27, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong Kim, Eung Sun Kim, Ji Hyun Yoon
  • Publication number: 20160144859
    Abstract: A system and method for performing autonomous navigation of a vehicle are disclosed, which recognize a possibility of collision risk through path estimation of a target vehicle, and generate an autonomous navigation path. The autonomous navigation system for a vehicle includes: a target-vehicle information detection unit configured to detect traveling information of a target vehicle; and a path generation unit configured to estimate movement of the target vehicle on the basis of the information received from the target-vehicle information detection unit, calculate a collision risk value by recognizing a possibility of collision risk between an ego-vehicle and the target vehicle, and generate an autonomous navigation path of the ego-vehicle.
    Type: Application
    Filed: March 24, 2015
    Publication date: May 26, 2016
    Inventors: Su Jung YOO, Ji Hyun YOON, Min Yong SHIN, Hoi Won KIM
  • Publication number: 20160128673
    Abstract: Provided are an ultrasound diagnosis apparatus and an ultrasound diagnosis method that provide to a user an ultrasound image which is easy to recognize. The ultrasound diagnosis apparatus includes a probe, an ultrasound transmitter configured to transmit ultrasound waves to an object by using the probe, an ultrasound receiver configured to generate ultrasound data based on reflection waves corresponding to the transmitted ultrasound waves, a bio-signal obtaining unit configured to obtain bio-signals that are periodically generated, a data processor configured to obtain first loop image data and second loop image data based on the ultrasound data, and an image generator configured to generate combined data by combining the first loop image data and the second loop image based on the bio-signals.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 12, 2016
    Applicant: SAMSUNG MEDISON CO., LTD.
    Inventors: Jin-Yong LEE, Sung-wook PARK, Jin-ki PARK, Joo-hyun SONG, Bong-heon LEE, Hyuk-jae CHANG, Nam-sik CHUNG, Geu-ru HONG, Jong-hwa KIM, Ji-hyun YOON
  • Publication number: 20160128667
    Abstract: Disclosed is an ultrasound apparatus. The ultrasound apparatus includes an ultrasound transceiver that transmits an ultrasound signal to an object and receives an ultrasound echo signal reflected from the object, a controller that detects a change amount of a diameter of a blood vessel of the object, based on the ultrasound echo signal, and a display unit that displays a blood pressure graph showing a blood pressure of the object and an image representing an inflection point in the blood pressure graph, based on the detected change amount of the diameter. The controller calculates a stiffness of the blood vessel, based on a blood pressure corresponding to the inflection point.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 12, 2016
    Applicant: SAMSUNG MEDISON CO., LTD.
    Inventors: Jin-yong LEE, Sung-wook PARK, Jin-ki PARK, Joo-hyun SONG, Bong-heon LEE, Hyuk-jae CHANG, Namsik CHUNG, Geu-ru HONG, Jong-hwa KIM, Ji-hyun YOON
  • Publication number: 20160101733
    Abstract: A system and a method for assisting vehicle driving are provided. The system may select and use an imaging device among a plurality of imaging devices within a smart phone possessed by a driver or a passenger in a vehicle and assist in driving. A system includes a smart phone configured to capture an image in front of a vehicle and an inner image of the vehicle using the plurality of imaging devices within the smart phone and select one of the plurality of imaging devices. The system also includes a controller configured to analyze image information provided from the plurality of imaging devices to operate the smart phone or control the vehicle.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 14, 2016
    Inventor: Ji Hyun Yoon
  • Patent number: 9310208
    Abstract: A mobile device includes a magnetic field sensor configured to measure a magnetic field value at a location of the mobile device, and a memory configured to store first magnetic field maps corresponding to a number N of respective heights. The mobile device includes a magnetic field map deriving unit configured to derive second magnetic field maps corresponding to a number M of respective heights based on the first magnetic field maps, the number M being greater than the number N, and a location determining unit configured to determine the location of the mobile device based on the magnetic field value and the second magnetic field maps.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: April 12, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun Gi Ahn, Ji Hyun Yoon, Seong Eun Kim, Yong Kim, Eung Sun Kim
  • Publication number: 20160082958
    Abstract: Method and apparatus for a vehicle cruise control, particularly concerning a school bus, which includes collecting information on the school bus and a road environment positioned around nearby vehicle, monitoring position, velocity and moving direction of the school bus, and state of surrounding road. If the school bus is stopped relatively near the front of the nearby vehicle, the method continues by determining whether or not the vehicle is stopped by comparing the collected school bus information and the road environment information with a predefined cruise regulation based on the school bus, and guiding the driver to stop as well as controlling the vehicle to stop depending on the determination result.
    Type: Application
    Filed: December 11, 2014
    Publication date: March 24, 2016
    Inventor: Ji Hyun YOON
  • Publication number: 20160028084
    Abstract: Provided are a porous silicon-based anode active material including porous SiOx particles (0?x<2) having surfaces coated with an oxide layer, a method of preparing the same, and a lithium secondary battery including the porous silicon-based anode active material. Since the anode active material includes an oxide layer formed on the porous SiOx particles (0?x<2), a reactivity between the anode active material and an electrolyte solution may be reduced and, as a result, an electrical short circuit in an electrode may be minimized. Also, since a plurality of pores is included in surfaces or the surfaces and inside of the SiOx particles, a thickness change rate of the electrode generated during charge and discharge of a secondary battery may be reduced and lifetime characteristics may be improved.
    Type: Application
    Filed: December 2, 2014
    Publication date: January 28, 2016
    Applicants: LG Chem, Ltd., Sejin Innotech. Co., Ltd.
    Inventors: Mi Rim Lee, Jung Woo Yoo, Eun Kyung Kim, Yong Ju Lee, Han Ho Lee, Ji Hyun Yoon, Byoung Man Bang, Chang Rae Lee, Il Kyo Jeong, Mi Kyeong Lee
  • Publication number: 20150378045
    Abstract: A mobile terminal device for a positioning system based on a magnetic field map and a method thereof, are provided. The mobile terminal includes a memory configured to store a magnetic field map including magnetic field values at positions. The mobile terminal further includes a magnetic field sensor configured to measure a magnetic field value at a position of the mobile terminal. The mobile terminal further includes an inertial measurement unit (IMU) sensor configured to measure an acceleration value and a gyro value of the mobile terminal. The mobile terminal further includes a processor configured to determine the position of the mobile terminal based on the magnetic field map, the magnetic field value, the acceleration value, and the gyro value.
    Type: Application
    Filed: September 8, 2015
    Publication date: December 31, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong KIM, Eung Sun KIM, Ji Hyun YOON
  • Publication number: 20150365793
    Abstract: A method of setting an initial location of a user terminal via an interaction with a user and a user terminal is provided. The method includes measuring a magnetic field at a current location of the user terminal, and estimating a candidate initial location of the user terminal based on the magnetic field. The method further includes displaying the candidate initial location, and selecting the candidate initial location. The method further includes setting the initial location based on the selection.
    Type: Application
    Filed: August 25, 2015
    Publication date: December 17, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seong Eun KIM, Yong KIM, Eung Sun KIM, Hyun Gi AHN, Ji Hyun YOON
  • Patent number: 9167440
    Abstract: A mobile terminal device for a positioning system based on a magnetic field map and a method thereof, are provided. The mobile terminal includes a memory configured to store a magnetic field map including magnetic field values at positions. The mobile terminal further includes a magnetic field sensor configured to measure a magnetic field value at a position of the mobile terminal. The mobile terminal further includes an inertial measurement unit (IMU) sensor configured to measure an acceleration value and a gyro value of the mobile terminal. The mobile terminal further includes a processor configured to determine the position of the mobile terminal based on the magnetic field map, the magnetic field value, the acceleration value, and the gyro value.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: October 20, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong Kim, Eung Sun Kim, Ji Hyun Yoon
  • Patent number: 9137632
    Abstract: A method of setting an initial location of a user terminal via an interaction with a user and a user terminal is provided. The method includes measuring a magnetic field at a current location of the user terminal, and estimating a candidate initial location of the user terminal based on the magnetic field. The method further includes displaying the candidate initial location, and selecting the candidate initial location. The method further includes setting the initial location based on the selection.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: September 15, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong Eun Kim, Yong Kim, Eung Sun Kim, Hyun Gi Ahn, Ji Hyun Yoon
  • Publication number: 20150171420
    Abstract: Disclosed are a negative active material for a rechargeable lithium battery including a core including a material being capable of intercalating and deintercalating lithium ions and a shell positioned on the surface of the core, wherein the shell includes antimony-doped tin oxide, a method of manufacturing the same, and a rechargeable lithium battery including the same.
    Type: Application
    Filed: March 27, 2014
    Publication date: June 18, 2015
    Applicants: SEJIN INNOTECH CO., LTD., UNIST Academy-Industry Research Corporation
    Inventors: Soojin PARK, Sang-Young Lee, Seung Hee Ko, Jung-In Lee, Jang-Hoon Park, Han Ho Lee, Ji Hyun Yoon, Byoung Man Bang, Chang Rae Lee, Il Kyo Jeong
  • Publication number: 20150072240
    Abstract: Provided are a porous silicon-based particle including a silicon (Si) or SiOx (0<x<2) particle, wherein the particle includes a plurality of nonlinear pores, and the nonlinear pores are formed as open pores in a surface of the particle, and a method of preparing the porous silicon-based particles. Porous silicon-based particles according to an embodiment of the present invention may be more easily dispersed in an anode active material slurry, may minimize side reactions with an electrolyte, and may reduce volume expansion during charge and discharge. Also, according to an embodiment of the present invention, the shape, form, and size of pores formed in the porous silicon-based particle may be controlled by adjusting the type of a metal catalyst, the concentration of the catalyst, and etching time.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Applicants: LG CHEM, LTD., SEJIN INNOTECH. CO., LTD.
    Inventors: Jung Woo Yoo, Mi Rim Lee, Yong Ju Lee, Eun Kyung Kim, Han Ho Lee, Ji Hyun Yoon, Byoung Man Bang, Chang Rae Lee, Il Kyo Jeong, Mi Kyeong Lee
  • Publication number: 20140377653
    Abstract: The present invention relates to a method of preparing a porous silicon-based negative electrode active material comprising: mixing a porous silica (SiO2) and an aluminum powder; oxidizing all or part of the aluminum powder as an aluminum oxide while at the same time reducing all or part of the porous silica as a porous silicon (Si) by heat-treating a mixture of the porous silica with the aluminum powder, a negative electrode active material, and a rechargeable lithium battery including the same.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 25, 2014
    Inventors: Soojin PARK, Sin Ho CHOI, Ji Hyun YOON, Byoung Man BANG
  • Patent number: 8844914
    Abstract: Disclosed is a variable differential mount apparatus using a Magnetorheological Elastomer (MRE). The apparatus includes a core, a coil, a plurality of MRE supports, and a magnetic path formation member. The core has a plurality of arms disposed thereon. The coil is wound on the plurality of arms, respectively. The plurality of MRE supports are disposed to face the plurality of arms, respectively. The magnetic path formation member is disposed outside the plurality of MRE supports. More specifically, a current is applied to coil to vary the degree of stiffness of the variable differential mount based on a particular driving condition to allow for increased handling and comfort.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: September 30, 2014
    Assignees: Hyundai Motor Company, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Min Soo Kim, Kyung Mo Yang, Seong Hoon Lee, Ji Hyun Yoon, Un Chang Jeong, In Hyung Yang, Jae Eung Oh
  • Publication number: 20140162703
    Abstract: A mobile device includes a magnetic field sensor configured to measure a magnetic field value at a location of the mobile device, and a memory configured to store first magnetic field maps corresponding to a number N of respective heights. The mobile device includes a magnetic field map deriving unit configured to derive second magnetic field maps corresponding to a number M of respective heights based on the first magnetic field maps, the number M being greater than the number N, and a location determining unit configured to determine the location of the mobile device based on the magnetic field value and the second magnetic field maps.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 12, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Gi AHN, Ji Hyun YOON, Seong Eun KIM, Yong KIM, Eung Sun KIM
  • Publication number: 20140113664
    Abstract: A method of setting an initial location of a user terminal via an interaction with a user and a user terminal is provided. The method includes measuring a magnetic field at a current location of the user terminal, and estimating a candidate initial location of the user terminal based on the magnetic field. The method further includes displaying the candidate initial location, and selecting the candidate initial location. The method further includes setting the initial location based on the selection.
    Type: Application
    Filed: October 21, 2013
    Publication date: April 24, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seong Eun KIM, Yong KIM, Eung Sun KIM, Hyun Gi AHN, Ji Hyun YOON
  • Publication number: 20140073350
    Abstract: A user terminal and a method for providing a service for estimating a location based on a change in a state of the user terminal, are provided. The method includes sensing a change in a state of a terminal while an application that provides the service of estimating the location is being executed, and extracting one or more resources affected by the change from a plurality of resources to be used to provide the service. The method further includes filtering data corresponding to the one or more affected resources, and providing data to the application based on the filtering.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 13, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong KIM, Seong Eun KIM, Eung Sun KIM, Hyun Gi AHN, Ji Hyun YOON
  • Publication number: 20140025334
    Abstract: A method of estimating a location of a terminal includes measuring a magnetic field value at a location of the terminal, estimating the location of the terminal using the measured magnetic field value, and transmitting the measured magnetic field value and information associated with the estimated location to a server. A method of modifying a magnetic field map includes receiving, from a terminal, a magnetic field value estimated at a location of the terminal, and information associated with a location of the terminal estimated based on the magnetic field value, and modifying a magnetic field map using the measured magnetic field value and the information associated with the estimated location.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 23, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seong Eun Kim, Yong Kim, Eung Sun Kim, Hyun Gi Ahn, Ji Hyun Yoon