Patents by Inventor Dong Jun Lee

Dong Jun Lee 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).

  • CHARGING SYSTEM WITH SENSOR DIAGNOSIS FUNCTION AND METHOD OF DIAGNOSING SENSOR APPLIED TO THE SAME
    Publication number: 20190190285
    Abstract: A charging system with a sensor diagnosis function is provided. The system includes an AC input voltage sensor that detects a voltage of an input end with an AC power applied thereto and a resistor that is connected to the input end. A power factor correction circuit unit adjusts and outputs a power factor of AC power applied through the resistor. An output voltage of the power factor correction circuit unit is applied to a capacity of the system. A controller then diagnoses the AC input voltage sensor based on a value of current passing through the resistor, a value of a voltage of the capacitor, and a resistance value of the resistor.
    Type: Application
    Filed: June 1, 2018
    Publication date: June 20, 2019
    Inventors: Ho Joong Lee, Han Shin Youn, Jee Heon Kim, Dong Jun Lee, Hye Seung Kim
  • METHOD AND SYSTEM FOR CONTROLLING VEHICLE DURING CHARGING
    Publication number: 20190184838
    Abstract: A method of controlling a vehicle during charging is applied to the vehicle that includes a charger converting external alternating current power into direct current power, and a first battery and an electric load connected to a terminal to which the direct current power converted and output by the charger. The method includes calculating a maximum outputtable power capable of being output by the charger when an operation of the charger is initiated; and calculating a maximum allowable load power capable of being applied to drive the electric load on the basis of the maximum outputtable power, a minimum charging power required to charge the first battery, and a minimum load-requesting power required to operate the electric load.
    Type: Application
    Filed: June 8, 2018
    Publication date: June 20, 2019
    Inventors: Ho Joong Lee, Han Shin Youn, Jee Heon Kim, Dong Jun Lee, Hye Seung Kim
  • Laser processing device and laser processing method
    Patent number: 10286485
    Abstract: The laser processing device includes: a measuring device configured to measure a change in a height of an object and including a first light source configured to emit probe light, a first light focusing unit configured to focus the probe light on the object, a light sensing unit configured to detect a change in the probe light reflected from a reflective surface of the object and including a Shack-Hartmann sensor, and a calculation unit configured to calculate the change in the height of the object by using the change in the reflected light detected by the light sensing unit; a second light source configured to emit laser light for processing to the object; and a focus adjusting device configured to adjust a focus of the laser light emitted to the object by using the change in the height of the object to be processed measured by the measuring device.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: May 14, 2019
    Assignee: EO TECHNICS CO., LTD.
    Inventors: Dong Jun Lee, Dong Won Hyun, Byung Oh Kim
  • System and method for controlling a relay of an auxiliary battery
    Patent number: 10220721
    Abstract: A method for controlling a relay of an auxiliary battery by a controller includes deciding whether or not a low direct current (DC) to DC converter (LDC) supplies power required in an electronic load in a state of charge (SOC) maintaining mode of the auxiliary battery. As a result of the decision, a turn-on state of the relay in which power of the auxiliary battery is supplied to the electronic load is maintained when the LDC does not supply the power required in the electronic load. As a result of the decision, the relay is turned off so that power of the auxiliary battery is not supplied to the electronic load when the LDC supplies the power required in the electronic load.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 5, 2019
    Assignee: Hyundai Motor Company
    Inventors: Ho Joong Lee, Dong Jun Lee, Na Lae Kwon, Jee Heon Kim, Won Kyoung Choi
  • Synchronization between electronic devices
    Patent number: 10223132
    Abstract: An electronic device is provided. The electronic device includes a management module configured to determine if a package related to an application is equipped in the first electronic device, a communication module configured to receive determine if a package related to an application is equipped in the first electronic device, and a display configured to output an item for executing the application, wherein the management module controls the display to display the item based on a comparison of the package and the application information.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: March 5, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tai Kuin Mun, Dong Jun Lee
  • Semiconductor device having air gap spacers and method for fabricating the same
    Patent number: 10204825
    Abstract: A method for fabricating a semiconductor device includes providing a substrate including a cell region including a bit line structure, a bit line spacer and a lower electrode and a peripheral circuit region including first to third impurity regions, forming an interlayer insulating film on the peripheral circuit region, forming a first metal layer on the interlayer insulating film, forming a first trench and a second trench in the first metal layer between the first and second impurity regions, the second trench is disposed between the second and third impurity regions and exposes the interlayer insulating film, forming a first capping pattern on the first trench to form an air gap in the first trench, filling the second trench with a first insulating material, and forming, on the first metal layer, a contact connected to the third impurity region.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: February 12, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Ryul Lee, Joong Chan Shin, Dong Jun Lee, Ho Ouk Lee, Ji Min Choi, Ji Young Kim, Chan Sic Yoon, Chang Hyun Cho
  • METHOD AND APPARATUS FOR SETTING DESTINATION IN NAVIGATION TERMINAL
    Publication number: 20180372495
    Abstract: A method and apparatus are provided for displaying information in a first electronic device. A message is received from a second electronic device. In response to determining that the message includes information corresponding to a location of the second electronic device, information corresponding to a location of the second electronic device is obtained from the received message. A start point and a destination point are set based at least in part on position information of the first electronic device and the information corresponding to the location of the second electronic device. In response to identifying a route between the start point and the destination point, information representing the identified route between the start point and the destination point is displayed on a display of the first electronic device.
    Type: Application
    Filed: September 4, 2018
    Publication date: December 27, 2018
    Inventor: Dong-Jun Lee
  • Low voltage DC-DC converter of eco friendly vehicle
    Patent number: 10160337
    Abstract: A low voltage DC-DC converter of an eco-friendly vehicle is provided. The converter includes an output current limit map applier that is configured to output an output current limit value using an output current limit map. A power controller is configured to amplify the output limit value output from the output current limit map applier to a predefined gain. Furthermore, an output limiter is configured to output the output limit value output from the power controller, and filter and output the output limit value after a predefined time lapses.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: December 25, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jee Heon Kim, Dong Jun Lee, Gi Bong Son, Won Kyoung Choi, Hyun Wook Seong
  • METHOD AND SYSTEM FOR CONTROLLING VEHICULAR DIRECT CURRENT CONVERTER
    Publication number: 20180354386
    Abstract: A method and system for controlling a vehicular direct current converter are provided. In particular, zero-current control is performed during control for maintaining an SOC of an auxiliary battery. Accordingly, energy loss due to charging and discharging of the auxiliary battery is minimized and the fuel efficiency of a vehicle is improved.
    Type: Application
    Filed: November 8, 2017
    Publication date: December 13, 2018
    Inventors: Ho Joong Lee, Dong Jun Shin, Won Kyoung Choi, Jun Yeon Park, Na Lae Kwon, Hyun Wook Seong, Jee Heon Kim, Chang Ryeol Yoo, Dong Jun Lee
  • SYSTEM AND METHOD FOR DIAGNOSING BATTERY CONNECTION STATUS
    Publication number: 20180358825
    Abstract: A system for diagnosing a battery connection status includes: a DC-DC converter that converts and outputs a level of an input voltage; a battery connected to an output terminal of the DC-DC converter; and a controller that generates a control value for compensating for an error between a voltage command or a current command of the battery and a detection voltage or a detection current of the battery, controls the output of the DC-DC converter by applying the control value, and diagnoses a connection status between the DC-DC converter and the battery based on a change in error between the detection voltage or the detection current of the battery and the voltage command or the current command of the battery.
    Type: Application
    Filed: November 10, 2017
    Publication date: December 13, 2018
    Inventors: Won Kyoung Choi, Na Lae Kwon, Jee Heon Kim, Dong Jun Lee, Ho Joong Lee
  • LASER PROCESSING DEVICE AND LASER PROCESSING METHOD
    Publication number: 20180339363
    Abstract: The laser processing device includes: a measuring device configured to measure a change in a height of an object and including a first light source configured to emit probe light, a first light focusing unit configured to focus the probe light on the object, a light sensing unit configured to detect a change in the probe light reflected from a reflective surface of the object and including a Shack-Hartmann sensor, and a calculation unit configured to calculate the change in the height of the object by using the change in the reflected light detected by the light sensing unit; a second light source configured to emit laser light for processing to the object; and a focus adjusting device configured to adjust a focus of the laser light emitted to the object by using the change in the height of the object to be processed measured by the measuring device.
    Type: Application
    Filed: August 11, 2016
    Publication date: November 29, 2018
    Applicant: EO TECHNICS CO., LTD.
    Inventors: Dong Jun LEE, Dong Won HYUN, Byung Oh KIM
  • DC-DC converter system for blocking reverse powering
    Patent number: 10128767
    Abstract: ADC-DC converter system is provided. The DC-DC converter system includes a transformer that is disposed between an input terminal and an output terminal, and a primary side switching circuit unit that converts voltage of the input terminal to AC voltage and provide the converted AC voltage to a primary side coil of the transformer. A secondary side switching circuit unit includes a plurality of switches that convert voltage induced in a secondary side coil of the transformer to DC voltage and provide the converted DC voltage to the output terminal. A controller is configured to adjust a short-circuit/open state of the plurality of switches based on voltages at both ends of each of the plurality of switches.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: November 13, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jee Heon Kim, Mu Shin Kwak, Dong Jun Lee, Na Lae Kwon, Hyun Wook Seong, Won Kyoung Choi, Ho Joong Lee
  • System, method and apparatus for protecting OBC output terminal
    Patent number: 10081247
    Abstract: A system for protecting the output terminal of the on-board-charger (OBC) includes: the OBC configured to apply an output voltage equal to a voltage of a battery to the battery to perform charging of the battery, an output terminal protection apparatus configured to compare a voltage difference between the output voltage of the OBC and the voltage of the battery with a threshold, and an OBC relay configured to connect the OBC to the battery when the voltage difference is less than the threshold. The OBC performs the charging of the battery after the OBC is connected to the battery.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: September 25, 2018
    Assignee: Hyundai Motor Company
    Inventors: Dong Jun Lee, Jee Heon Kim, Won Kyoung Choi, Mu Shin Kwak
  • Method and apparatus for setting destination in navigation terminal
    Patent number: 10066943
    Abstract: A method and apparatus are provided for setting a destination in a mobile terminal is provided. The mobile terminal receives a message including location information from an external device. The mobile terminal obtains the location information from the message. Position coordinates corresponding to the location information are set as position coordinates of a destination related to a route.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: September 4, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Dong-Jun Lee
  • Method and system of controlling converter
    Patent number: 10063150
    Abstract: A method and system of controlling a converter is provided. The method includes sensing, by a controller, an on and off state of a secondary side switch of the converter and deriving, by the controller, a current command of the converter. The current command is then compared with preset current reference values each provided based on the on and off state of the secondary side switch. As the result of the comparison of the current command with the current reference value, the on and off state of the secondary side switch is either changed or maintained.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: August 28, 2018
    Assignee: Hyundai Motor Company
    Inventors: Jee Heon Kim, Jun Yeon Park, Hyun Wook Seong, Won Kyoung Choi, Dong Jun Lee
  • Bidirectional powering on-board charger, vehicle power supply system including the same, and control method thereof
    Patent number: 10046656
    Abstract: A vehicle power supply system is provided. The system includes a main battery and an OBC having first and second input/output terminals, in which AC power input to the first input/output terminal is converted into DC power to be output to the second input/output terminal, and a magnitude of the DC power input to the second input/output terminal is converted and output to the first input/output terminal. Additionally, the system includes an LDC in which a DC voltage input from the main battery is converted into a low voltage to be supplied to an auxiliary battery or an electronic load and a switching unit is connected between the first input/output terminal and the LDC. A controller is then configured to adjust a powering direction of the OBC and an on/off state of the switching unit, based on whether the main battery is charged and whether the LDC fails.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: August 14, 2018
    Assignee: Hyundai Motor Company
    Inventors: Jee Heon Kim, Jun Yeon Park, Ho Joong Lee, Won Kyoung Choi, Dong Jun Lee
  • SEMICONDUCTOR DEVICE HAVING AIR GAP SPACERS AND METHOD FOR FABRICATING THE SAME
    Publication number: 20180158718
    Abstract: A method for fabricating a semiconductor device includes providing a substrate including a cell region including a bit line structure, a bit line spacer and a lower electrode and a peripheral circuit region including first to third impurity regions, forming an interlayer insulating film on the peripheral circuit region, forming a first metal layer on the interlayer insulating film, forming a first trench and a second trench in the first metal layer between the first and second impurity regions, the second trench is disposed between the second and third impurity regions and exposes the interlayer insulating film, forming a first capping pattern on the first trench to form an air gap in the first trench, filling the second trench with a first insulating material, and forming, on the first metal layer, a contact connected to the third impurity region.
    Type: Application
    Filed: August 2, 2017
    Publication date: June 7, 2018
    Inventors: DONG RYUL LEE, Joong Chan SHIN, Dong Jun LEE, Ho Ouk LEE, Ji Min CHOI, Ji Young KIM, Chan Sic YOON, Chang Hyun CHO
  • ELECTRONIC DEVICE FOR CHARGING BATTERY AND OPERATING METHOD THEREOF
    Publication number: 20180102667
    Abstract: An electronic device is provided, the electronic device including a communication circuit, a battery, and a processor, and the processor is configured to: obtain a strength of a communication signal received by the communication circuit; determine a magnitude of power for charging the battery based on the strength of the communication signal; and charge the battery with power of the determined magnitude.
    Type: Application
    Filed: August 18, 2017
    Publication date: April 12, 2018
    Inventors: Hoon CHOI, Yong-Youn KIM, Dong-Jun LEE, Hyang-Bok LEE, Seong-Kyu MAENG, Ki-Yong SHIN, Han-Jun YI, Jong-Wook CHOI
  • SYSTEM AND METHOD FOR CONTROLLING A RELAY OF AN AUXILIARY BATTERY
    Publication number: 20180099578
    Abstract: A method for controlling a relay of an auxiliary battery by a controller includes deciding whether or not a low direct current (DC) to DC converter (LDC) supplies power required in an electronic load in a state of charge (SOC) maintaining mode of the auxiliary battery. As a result of the decision, a turn-on state of the relay in which power of the auxiliary battery is supplied to the electronic load is maintained when the LDC does not supply the power required in the electronic load. As a result of the decision, the relay is turned off so that power of the auxiliary battery is not supplied to the electronic load when the LDC supplies the power required in the electronic load.
    Type: Application
    Filed: December 1, 2016
    Publication date: April 12, 2018
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Ho Joong Lee, Dong Jun Lee, Na Lae Kwon, Jee Heon Kim, Won Kyoung Choi
  • Spanner
    Patent number: D815932
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: April 24, 2018
    Inventor: Dong Jun Lee