Patents by Inventor Young Woo Choi

Young 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).

  • Patent number: 10108759
    Abstract: Provided is a method for optimization of fuel cells operating conditions using a hybrid model, and more particularly, a method for optimization of fuel cells operating conditions using a hybrid model which generates a life prediction model determined by time and temperature based on a theoretical performance model and an empirical durability model and estimates an optimal operation temperature in a target life based on the life prediction model.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: October 23, 2018
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Minjin Kim, Young-Jun Sohn, Gu-Gon Park, Byungchan Bae, Sung-Dae Yim, Young-Woo Choi, Seok-Hee Park, Tae-Hyun Yang, Won-Yong Lee, Chang-Soo Kim
  • Patent number: 10061031
    Abstract: A navigation terminal includes a path controller configured to identify moving trajectories reaching respective points of interest, to cluster the identified moving trajectories into at least one moving section, to reflect a road correction mechanism in the at least one clustered moving section and to cluster the at least one clustered moving section into at least one moving path, and to extract one moving path, in which time sequential position information received from a GPS is corrected, from the at least one clustered moving path. Thereby, the navigation terminal is resistant to error of a GPS sensor, error generated due to a collection cycle, or error generated in correction, and precisely predicts a moving path.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: August 28, 2018
    Assignees: HYUNDAI MOTOR COMPANY, Foundation of Soongsil University—Industry Cooperation
    Inventors: Woo Chul Jung, Young Woo Choi, Je Min Kim, Hae Jung Baek, Young Taek Park
  • Publication number: 20180210019
    Abstract: A multichannel fuel cell test station for testing a performance of a fuel cell membrane electrode assembly (MEA) is provided. The multichannel fuel cell test station may include a cell mounting portion configured to receive a plurality of unit cells, a gas supply configured to supply fuel gas to the unit cells and including a pressure generator and a mass flow controller (MFC), a temperature controller configured to maintain a constant ambient temperature of the unit cells, a humidifying portion configured to maintain a constant humidification state around the unit cells, a measurer configured to measure performances and electrochemical impedances of the unit cells, and a controller configured to control the gas supply, the temperature controller, the humidifying portion and the measurer.
    Type: Application
    Filed: September 5, 2017
    Publication date: July 26, 2018
    Inventors: Young Gi Yoon, Young Woo Choi, Tae Young Kim, Beom Jun Kim, Min Ho Seo, Jong Min Lee, Chi Young Jung
  • Patent number: 9990413
    Abstract: A method for generating a music playlist includes: classifying a plurality of songs into first songs and second songs, the first songs being sample songs with mood vectors, and the second songs being new songs with no mood vectors; comparing physical attributes of the first songs to physical attributes of each second song; determining which first song of the first songs has physical attributes most similar to the physical attributes of each second song; assigning the mood vector of the determined first song having the most similar physical attributes to each second song; and generating a music playlist containing songs, all with mood vectors, by combining the second songs with mood vectors assigned thereto and the first songs.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: June 5, 2018
    Assignee: Hyundai Motor Company
    Inventors: Woochul Jung, Young Woo Choi
  • Patent number: 9982104
    Abstract: A reverse electrodialysis device, including an anode, a cathode, one or more single cells spaced apart from each other between the anode and the cathode, each single cell including a cation exchange membrane and an anion exchange membrane, and a shielding membrane disposed to define spaces between the anode and the single cell and/or between the cathode and the single cell. The cation exchange membrane and the shielding membrane include a porous polymer substrate and a polymer electrolyte incorporated into pores in the substrate.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: May 29, 2018
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Young-Woo Choi, Misoon Lee, Young-Gi Yoon, Chan-Soo Kim, Namjo Jeong, Han-Ki Kim
  • Patent number: 9953602
    Abstract: A method for driving a display panel includes at least two driving operations. The first driving operation includes driving a first display area of the display panel by outputting a data signal of a first frame to the first display area and driving a gate line of a first gate line group in the first display area. The second driving operation includes driving a second display area of the display panel by outputting a data signal of a second frame to the second display area and driving a gate line of a second gate line group in the second display area. The first display area is adjacent to the second display area, and the first frame is different from the second frame.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: April 24, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Woo Choi, Jung-Taek Kim
  • Patent number: 9837037
    Abstract: A method of driving a display panel includes comparing a previous line data and a present line data to generate a charge sharing enable (EQ) signal indicating whether or not a charge sharing is to be applied to a pixel; selectively applying the charge sharing to the present line data utilizing a charge sharing voltage according to the EQ signal to generate a data voltage; and outputting the data voltage to the pixel.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: December 5, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Sik Hwang, Bong-Im Park, Ik Hyun Ahn, Won-Sik Oh, Yoon-Gu Kim, Ho-Seok Son, Young-Woo Choi
  • Patent number: 9806363
    Abstract: Provided is an apparatus for soft-sensing a fuel cell system. The apparatus includes: a connecting unit detachable from a control unit for being connected to an outside of a stationary fuel cell system; a collecting unit connected to the connecting unit and receiving data of the stationary fuel cell system; a quality variable predicting unit connected to the collecting unit and predicting a quality variable of the stationary fuel cell system based on the received data; and a monitoring unit connected to the quality variable predicting unit and outputting the predicted quality variable. The quality variable predicting unit is configured to predict the quality variable predictable including at least any one of a concentration of carbon monoxide in a reformed gas at a rear end of a fuel converting system, and a concentration of methane in the reformed gas at the rear end of the fuel converting system.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: October 31, 2017
    Assignee: KOREA INSITUTE OF ENERGY RESEARCH
    Inventors: Minjin Kim, Young-Jun Sohn, Gu-Gon Park, Byungchan Bae, Sung-Dae Yim, Young-Woo Choi, Seok-Hee Park, Tae-Hyun Yang, Won-Yong Lee, Chang-Soo Kim
  • Patent number: 9727280
    Abstract: A host device includes a communication interface unit to be connected to a workform performing device, a workform generation unit to perform a job and generate a workform to which a universal plug-in is applied, a storage unit to store at least one of the workform generated by the workform generation unit and a workform transmitted from an external device, and a control unit to control the communication interface unit to transmit the at least one stored workform to the workform performing device according to a command to perform a job.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: August 8, 2017
    Assignee: S-PRINTING SOLUTION CO., LTD.
    Inventor: Young-woo Choi
  • Publication number: 20170136413
    Abstract: A reverse electrodialysis device, including an anode, a cathode, one or more single cells spaced apart from each other between the anode and the cathode, each single cell including a cation exchange membrane and an anion exchange membrane, and a shielding membrane disposed to define spaces between the anode and the single cell and/or between the cathode and the single cell. The cation exchange membrane and the shielding membrane include a porous polymer substrate and a polymer electrolyte incorporated into pores in the substrate.
    Type: Application
    Filed: March 18, 2016
    Publication date: May 18, 2017
    Inventors: Young-Woo Choi, Misoon Lee, Young-Gi Yoon, Chan-Soo Kim, Namjo Jeong, Han-Ki Kim
  • Patent number: 9626912
    Abstract: An electroluminescent display and a method of driving the same are disclosed. In one aspect, the display includes a display panel including a plurality of pixel units electrically connected to a plurality of data lines and a plurality of gate lines. The pixel units are arranged in a matrix of a plurality of rows and a plurality of columns, the pixel units in the same column are connected to the same data line, and the pixel units in the same diagonal line of the matrix are connected to the same gate line. The display also includes a data driver located at a first side of the display panel, the data driver being configured to drive the data lines, and a gate driver located at the first side of the display panel and configured to drive the gate lines.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Taek Kim, Joon-Chul Goh, Soo-Yeon Lee, Kyoung-Ho Lim, Young-Woo Choi
  • Patent number: 9590258
    Abstract: Provided are an apparatus and a method for managing a fuel cell vehicle system, and more particularly, an apparatus and a method for managing a fuel cell vehicle system capable of optimally maintaining a driving method based on environmental information and product information.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: March 7, 2017
    Assignee: Korea Institute of Energy Research
    Inventors: Min Jin Kim, Young-Jun Sohn, Gu-Gon Park, Byung Chan Bae, Sung-Dae Yim, Young-Woo Choi, Seok-Hee Park, Young-Gi Yoon, Tae-Hyun Yang, Won-Yong Lee, Chang-Soo Kim
  • Patent number: 9577274
    Abstract: Provided are an apparatus and a method for managing a fuel cell vehicle system, and more particularly, an apparatus and a method for managing a fuel cell vehicle system capable of optimally maintaining a driving method based on environmental information and product information.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: February 21, 2017
    Assignee: Korea Institute of Energy Research
    Inventors: Min Jin Kim, Young-Jun Sohn, Gu-Gon Park, Byung Chan Bae, Sung-Dae Yim, Young-Woo Choi, Seok-Hee Park, Young-Gi Yoon, Tae-Hyun Yang, Won-Yong Lee, Chang-Soo Kim
  • Patent number: 9559363
    Abstract: Provided are a method for preparing a catalyst layer by an in-situ sol-gel reaction of tetraethoxysilane, and a fuel cell including the catalyst layer prepared thereby. Addition of silica mitigates specific adsorption of sulfonate groups contained in a Nafion ionomer on a Pt catalyst layer in a high-voltage region where the role of a catalyst predominates, resulting in improvement of ORR performance.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: January 31, 2017
    Assignee: Korea Institute of Energy Research
    Inventors: Sung-Dae Yim, Taeyoung Kim, Seok-Hee Park, Young-Gi Yoon, Gu-Gon Park, Tae-Hyun Yang, Young-Woo Choi, Byung-Chan Bae, Young-Jun Son, Min-Jin Kim, Chang-Soo Kim
  • Publication number: 20160217729
    Abstract: An electroluminescent display and a method of driving the same are disclosed. In one aspect, the display includes a display panel including a plurality of pixel units electrically connected to a plurality of data lines and a plurality of gate lines. The pixel units are arranged in a matrix of a plurality of rows and a plurality of columns, the pixel units in the same column are connected to the same data line, and the pixel units in the same diagonal line of the matrix are connected to the same gate line. The display also includes a data driver located at a first side of the display panel, the data driver being configured to drive the data lines, and a gate driver located at the first side of the display panel and configured to drive the gate lines.
    Type: Application
    Filed: June 30, 2015
    Publication date: July 28, 2016
    Inventors: Jung-Taek Kim, Joon-Chul Goh, Soo-Yeon Lee, Kyoung-Ho Lim, Young-Woo Choi
  • Publication number: 20160178377
    Abstract: A navigation terminal includes a path controller configured to identify moving trajectories reaching respective points of interest, to cluster the identified moving trajectories into at least one moving section, to reflect a road correction mechanism in the at least one clustered moving section and to cluster the at least one clustered moving section into at least one moving path, and to extract one moving path, in which time sequential position information received from a GPS is corrected, from the at least one clustered moving path. Thereby, the navigation terminal is resistant to error of a GPS sensor, error generated due to a collection cycle, or error generated in correction, and precisely predicts a moving path.
    Type: Application
    Filed: June 24, 2015
    Publication date: June 23, 2016
    Inventors: Woo Chul JUNG, Young Woo CHOI, Je Min KIM, Hae Jung BAEK, Young Taek PARK
  • Publication number: 20160162565
    Abstract: A method for generating a music playlist includes: classifying a plurality of songs into first songs and second songs, the first songs being sample songs with mood vectors, and the second songs being new songs with no mood vectors; comparing physical attributes of the first songs to physical attributes of each second song; determining which first song of the first songs has physical attributes most similar to the physical attributes of each second song; assigning the mood vector of the determined first song having the most similar physical attributes to each second song; and generating a music playlist containing songs, all with mood vectors, by combining the second songs with mood vectors assigned thereto and the first songs.
    Type: Application
    Filed: May 26, 2015
    Publication date: June 9, 2016
    Inventors: Woochul Jung, Young Woo Choi
  • Publication number: 20160153790
    Abstract: A vehicle driving information acquisition apparatus includes: a communication unit configured to receive a road tracking path from at least one vehicle equipped with a global positioning system (GPS) receiver, and a controller configured to correct the road tracking path received at the communication unit based on standard road information and to store the corrected road tracking path.
    Type: Application
    Filed: May 2, 2015
    Publication date: June 2, 2016
    Inventors: Woo Chul Jung, Young Woo Choi
  • Publication number: 20160140225
    Abstract: A music recommendation system of a vehicle includes: a sound source analysis unit that analyzes music characteristic information of a plurality of sound source files, respectively, generates a matching table including pieces of music metadata based on the analyzed music characteristic information of the plurality of sound source files, analyzes music characteristic information of a plurality of sound source files, respectively, included in a music list played by a driver of the vehicle, and generates an analysis table based on the analyzed music characteristic information of the plurality of sound source files included in the music list; an input unit that receives a music recommendation request from the driver; and a sound source recommending unit that extracts music characteristic information from the matching table similar to music characteristic information in the analysis table and generates a recommendation list based on the extracted music characteristic information.
    Type: Application
    Filed: May 27, 2015
    Publication date: May 19, 2016
    Inventors: Woochul Jung, Young Woo Choi
  • Publication number: 20160125077
    Abstract: An automotive music recommendation system includes: a communication unit that receives a music list including music content from a portable audio device by communicating with the portable audio device; an information detection unit that detects driving condition information when music content included in the music list is played or when a user of a vehicle requests a music recommendation; a music management unit that creates a matching table by matching the music list with the driving condition information upon playing the music content; and a music recommendation unit that, when receiving a music recommendation request from the user, creates a recommendation list by extracting music content from the matching table based on the driving condition information upon receiving the music recommendation request.
    Type: Application
    Filed: June 23, 2015
    Publication date: May 5, 2016
    Inventors: Woochul Jung, Young Woo Choi