Patents by Inventor Ji-hyun Choi

Ji-hyun 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).

  • Patent number: 10489061
    Abstract: A first rank includes a plurality of first semiconductor memory devices, and a second rank includes a plurality of second semiconductor memory devices. The command/address signal lines are shared by a controller, the first rank, and the second rank, and the data lines are shared by the controller, the first rank, and the second rank. When performing a data movement operation of moving data between the first rank and the second rank, the controller applies a shift read command to one of the first rank and the second rank through the command/address signal lines and applies a normal write command or a shift write command to another of the first rank and the second rank through the command/address signal lines after a time corresponding to a value obtained by subtracting the value of the write latency from the value of the read latency.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: November 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong Jin Lee, Ji Hyun Choi
  • Publication number: 20190166247
    Abstract: An electronic device and a method for performing a function in the electronic device are provided. The method includes recognizing that the electronic device is at a first state, the first state including the electronic device being in an overturned state or a predetermined amount of the display being covered; detecting an event in the first state; and outputting, in the first state, a visual notification associated with the detected event through a portion of the display, the portion of the display wrapping around a side edge of the electronic device. A shape of the visual notification output through the portion of the display changes while the event is maintained.
    Type: Application
    Filed: February 5, 2019
    Publication date: May 30, 2019
    Inventors: Hyun Jung SONG, Wan Soo Lim, Seung Min Choi, Ji Hyun Choi, Kyoung Taek Kim, Jun Ho Park
  • Publication number: 20190065074
    Abstract: A first rank includes a plurality of first semiconductor memory devices, and a second rank includes a plurality of second semiconductor memory devices. The command/address signal lines are shared by a controller, the first rank, and the second rank, and the data lines are shared by the controller, the first rank, and the second rank. When performing a data movement operation of moving data between the first rank and the second rank, the controller applies a shift read command to one of the first rank and the second rank through the command/address signal lines and applies a normal write command or a shift write command to another of the first rank and the second rank through the command/address signal lines after a time corresponding to a value obtained by subtracting the value of the write latency from the value of the read latency.
    Type: Application
    Filed: February 6, 2018
    Publication date: February 28, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seong Jin LEE, Ji Hyun Choi
  • Patent number: 10200528
    Abstract: An electronic device and a method for performing a function in the electronic device are provided. The method includes recognizing that the electronic device is at a first state, the first state including that the electronic device is in an overturned state or that a predetermined amount of a display is covered; detecting a specific event in the first state; outputting a color notification associated with the detected specific event through at least a portion of the display, the portion of the display wrapping around a side edge of the electronic device; receiving a specific user input corresponding to the color notification, while outputting the color notification; and performing a function associated with the received specific user input.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: February 5, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hyun Jung Song, Wan Soo Lim, Seung Min Choi, Ji Hyun Choi, Kyoung Taek Kim, Jun Ho Park
  • Publication number: 20180131804
    Abstract: An electronic device and a method for performing a function in the electronic device are provided. The method includes recognizing that the electronic device is at a first state, the first state including that the electronic device is in an overturned state or that a predetermined amount of a display is covered; detecting a specific event in the first state; outputting a color notification associated with the detected specific event through at least a portion of the display, the portion of the display wrapping around a side edge of the electronic device; receiving a specific user input corresponding to the color notification, while outputting the color notification; and performing a function associated with the received specific user input.
    Type: Application
    Filed: January 8, 2018
    Publication date: May 10, 2018
    Inventors: Hyun Jung SONG, Wan Soo Lim, Seung Min Choi, Ji Hyun Choi, Kyoung Taek Kim, Jun Ho Park
  • Patent number: 9866674
    Abstract: An electronic device and a method for performing a function in the electronic device are provided. The method includes recognizing that the electronic device is at a first state, the first state including that electronic device is in an overturned and stationary state or that a predetermined amount of a display of the electronic device is covered; detecting a specific event in the first state; outputting a color notification associated with the detected specific event through at least a portion of the display; receiving a specific user input corresponding to the color notification, while outputting the color notification; and performing a function associated with the received specific user input.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: January 9, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hyun Jung Song, Wan Soo Lim, Seung Min Choi, Ji Hyun Choi, Kyoung Taek Kim, Jun Ho Park
  • Publication number: 20170338114
    Abstract: A mask pattern is formed on a substrate. A first spacer film is formed on the mask pattern. The first spacer film is etched by irradiating the substrate with a gas cluster ion beam (GCIB). A first spacer pattern is formed on the substrate by removing the mask pattern. A second spacer film is formed on the first spacer pattern. The second spacer film is etched. A second spacer pattern is formed on the substrate by removing the first spacer pattern. The substrate is etched using the second spacer pattern as a mask.
    Type: Application
    Filed: November 27, 2015
    Publication date: November 23, 2017
    Inventors: Ji Hyun Choi, Young Don Chang
  • Publication number: 20160255187
    Abstract: An electronic device and a method for performing a function in the electronic device are provided. The method includes recognizing that the electronic device is at a first state, the first state including that electronic device is in an overturned and stationary state or that a predetermined amount of a display of the electronic device is covered; detecting a specific event in the first state; outputting a color notification associated with the detected specific event through at least a portion of the display; receiving a specific user input corresponding to the color notification, while outputting the color notification; and performing a function associated with the received specific user input.
    Type: Application
    Filed: February 26, 2016
    Publication date: September 1, 2016
    Inventors: Hyun Jung SONG, Wan Soo LIM, Seung Min CHOI, Ji Hyun CHOI, Kyoung Taek KIM, Jun Ho PARK
  • Patent number: 8798707
    Abstract: Disclosed are a novel, elastic, biocompatible, micro-sized, polyimide-based multi-channel microelectrode for recording of electroencephalography (EEG) from a laboratory animal including mouse, and a method for recording of laboratory animal EEG using the microelectrode. The microelectrode may include 2 grounding electrodes and 32 recording electrodes. A connector for signal transmission easily connects the microelectrode to a signal acquiring apparatus. The total weight of the microelectrode, including the connector, does not exceed 150 mg. Laboratory animal EEG, including that of mouse, provides the advantage of monitoring the brain state of a freely moving animal following a genetic or pharmaceutical manipulation. The microelectrode can be implanted without surgery and may be detached from wires while EEG is not recorded from the laboratory animal.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: August 5, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Ji Hyun Choi, Hee Sup Shin, Klaus Peter Koch
  • Patent number: 8652185
    Abstract: Disclosed is an apparatus for stimulating the brain and measuring the light induced neuronal activity including a signal application unit which applies a signal to a living tissue to stimulate the neuronal cells in the living tissue; an electrode unit which detects an electrophysiological signal of the neuronal cell in response to the signal; and an insulation unit which controls an impedance of the electrode unit. The signal application unit is formed integrally with the electrode unit, so that the site where the signal is applied to the living tissue is approximated to the site where the response to the stimulation is measured.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: February 18, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Ji Hyun Choi, Guk Bae Kim, Hee Sup Shin
  • Publication number: 20130172962
    Abstract: A probe-type light-emitting diode (LED) chip module for biostimulation includes: an LED chip, a substrate supporting the LED chip, an optical waveguide collecting light emitted from the LED chip; and an insulator coupling the substrate with the optical waveguide and providing insulation from outside. The optical waveguide includes: a body extending from one end facing the LED chip with a cylindrical shape; a variable layer having a diameter decreasing gradually from the other end of the body; and a probe extending from the end of the variable layer and having a diameter equivalent to that of an optical fiber. The probe-type LED chip module for biostimulation may be manufactured with a small size to have superior portability and applicability.
    Type: Application
    Filed: March 6, 2012
    Publication date: July 4, 2013
    Applicant: Korea Institute of Science and Technology
    Inventors: Jin Dong Song, Ji Hyun Choi, Ju Hyeon Lee
  • Publication number: 20110224528
    Abstract: Disclosed are a novel, elastic, biocompatible, micro-sized, polyimide-based multi-channel microelectrode for recording of electroencephalography (EEG) from a laboratory animal including mouse, and a method for recording of laboratory animal EEG using the microelectrode. The microelectrode may include 2 grounding electrodes and 32 recording electrodes. A connector for signal transmission easily connects the microelectrode to a signal acquiring apparatus. The total weight of the microelectrode, including the connector, does not exceed 150 mg. Laboratory animal EEG, including that of mouse, provides the advantage of monitoring the brain state of a freely moving animal following a genetic or pharmaceutical manipulation. The microelectrode can be implanted without surgery and may be detached from wires while EEG is not recorded from the laboratory animal.
    Type: Application
    Filed: December 24, 2008
    Publication date: September 15, 2011
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ji Hyun Choi, Hee Sup Shin, Klaus Peter Koch
  • Patent number: 7792090
    Abstract: Methods for determining an inter-slot power level are disclosed. In one example embodiment, the inter-slot is positioned between first and second timeslots capable of transmitting modulated signals. A first timeslot power level and a second timeslot power level are first acquired. A power level of the inter-slot is then determined using the first and second timeslot power-levels. In this example embodiment, the inter-slot power level is maintained within a predetermined deviation from a specific range. The specific range is defined by the first and second timeslot power-levels.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: September 7, 2010
    Assignee: LG Electronics Inc.
    Inventor: Ji Hyun Choi
  • Publication number: 20100161017
    Abstract: Disclosed is an apparatus for stimulating the brain and measuring the light induced neuronal activity including a signal application unit which applies a signal to a living tissue to stimulate the neuronal cells in the living tissue; an electrode unit which detects an electrophysiological signal of the neuronal cell in response to the signal; and an insulation unit which controls an impedance of the electrode unit. The signal application unit is formed integrally with the electrode unit, so that the site where the signal is applied to the living tissue is approximated to the site where the response to the stimulation is measured.
    Type: Application
    Filed: September 1, 2009
    Publication date: June 24, 2010
    Inventors: Ji Hyun Choi, Guk Bae Kim, Hee Sup Shin
  • Patent number: 7723604
    Abstract: An apparatus and method to output a musical tone is disclosed. More particularly, disclosed is an apparatus and method to output a musical tone according to motion, which divides a space in which a terminal can move into a plurality of subspaces, and matches the subspaces with different musical tones, so that the terminal can output a musical tone matched with a specific subspace when the terminal has moved into the specific subspace.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: May 25, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-chul Bang, Jun-il Sohn, Ji-hyun Choi, Eun-seok Choi, Dong-yoon Kim, Yeun-bae Kim
  • Patent number: 7450002
    Abstract: A method and apparatus for monitoring a human activity pattern irrespective of the wearing position of the sensor unit by a user and a direction of the sensor unit are provided. The method for monitoring an inertia movement signal according to a movement of a user using a sensor unit attached to the user; detecting a direction of the sensor unit from the inertia movement signal; detecting a wearing location of the sensor unit by using acceleration and direction; determining the activity pattern of the user from inertia sensors; and delivering physical activity data corresponding to at least one caloric consumption, number of steps, and movement distance.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: November 11, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-hyun Choi, Kun-soo Shin, Jin-sang Hwang, Hyun-tai Hwang, Wan-taek Han
  • Patent number: D854557
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: July 23, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-Jin Kang, Ji-Hyun Choi, Kyu-Hong Kim, Gwan-Young Yoo, Do-Hyung Lee, Yu-Sun Cheong, Byeong-Seok Choi
  • Patent number: D857050
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 20, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-Jin Kang, Ji-Hyun Choi, Kyu-Hong Kim, Gwan-Young Yoo, Do-Hyung Lee, Yu-Sun Cheong, Byeong-Seok Choi
  • Patent number: D862505
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: October 8, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-Jin Kang, Ji-Hyun Choi, Kyu-Hong Kim, Gwan-Young Yoo, Do-Hyung Lee, Yu-Sun Cheong, Byeong-Seok Choi
  • Patent number: D874506
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-Jin Kang, Ji-Hyun Choi, Kyu-Hong Kim, Gwan-Young Yoo, Do-Hyung Lee, Yu-Sun Cheong, Byeong-Seok Choi