Patents by Inventor Bum Sik Kim

Bum Sik Kim 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: 11961720
    Abstract: Disclosed herein is a multi-channel device for detecting plasma at an ultra-fast speed, including: a first antenna module connected to a first output terminal in contact with a substrate on a chuck of a process chamber and extending to ground, and receiving a first leakage current leaking through the substrate to increase reception sensitivity of the leakage current; a first current detection module detecting the first leakage current; a current measurement module receiving the first leakage current output from the first current detection module, and extracting the received first leakage current for each predetermined period to generate a first leakage current measurement information; and a control module comparing the first leakage current measurement information with a reference value to generate first arcing occurrence information.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: April 16, 2024
    Assignee: T.O.S Co., Ltd.
    Inventors: Yong Kyu Kim, Bum Ho Choi, Yong Sik Kim, Kwang Ki Kang, Hong Jong Jung, Seok Ho Lee, Seung Soo Lee
  • Patent number: 11953596
    Abstract: A light detection and ranging (lidar) device includes: a lower base; an upper base; a laser emitting unit for emitting a laser in a form of a point light source; a nodding mirror for transforming the laser in the form of the point light source to a line beam pattern which is perpendicular to the lower base, wherein the nodding mirror reflects the laser emitted from the laser emitting unit; a polygonal mirror for transforming the line beam pattern to a plane beam pattern and receiving a laser reflected from an object; and a sensor unit for receiving the laser reflected from the object via the polygonal mirror.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: April 9, 2024
    Assignee: SOS Lab Co., Ltd.
    Inventors: Ji Seong Jeong, Jun Hwan Jang, Dong Kyu Kim, Sung Ui Hwang, Gyeong Hwan Shin, Bum Sik Won
  • Publication number: 20240029651
    Abstract: Disclosed are a display device and a method for driving a pixel of the display device. The device and method is capable of securing a time to sense a threshold voltage of a driving transistor and of compensating for the threshold voltage during operation of the pixel. Each of a plurality of pixels has a 5T1C structure including first to fourth transistors and a driving transistor. The first to fourth transistors are configured to apply driving signals through first to fourth scan lines, respectively. Thus, even without increasing the number of driving signals applied to each pixel, a long time for sensing a threshold voltage of each pixel can be secured.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 25, 2024
    Inventors: Harkjin Kim, Kwanghwan Ji, Byong-Deok Choi, Bum Sik Kim, Dong-Young Kim, Yong Duck Kim, June Hee Lee
  • Patent number: 10640001
    Abstract: A wireless power transfer (WPT) method for an electric vehicle (EV) may include a vehicle controller or a vehicle assembly (VA) controller connected to the vehicle controller performing communications, for charging of a battery of the EV, with a ground assembly (GA) controller of a charger connected to a primary coil or a primary pad located outside the EV; and connecting the battery to a field winding of a driving motor of the EV before starting the WPT. The battery is charged by a power magnetically induced at the field winding from the primary coil.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: May 5, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Bum Sik Kim, Jin Hwan Jung, Hyeon Uk Kim, Ki Young Jang, Gyu Yeong Choe
  • Patent number: 10395601
    Abstract: An organic light emitting display device is discussed. The organic light emitting display device includes a first substrate including an active area that includes a plurality of pixels, and including upper, lower, left, and right inactive areas. The first substrate includes a plurality of data lines and a plurality of gate lines; a plurality of driving power lines; a cathode electrode layer; a plurality of driving power pads; a plurality of cathode connection parts provided in each of the left and right inactive areas; a first common driving power line; a second common driving power line; and a plurality of cathode power pads. Each of the first and second common driving power lines includes a plurality of divided common division lines. The plurality of driving power lines are grouped into a plurality of driving power line groups to be connected to a corresponding common division line.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: August 27, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae Wook Kwon, Bum Sik Kim, Kil Hwan Oh, Hye Mi Oh
  • Publication number: 20180118040
    Abstract: A wireless power transfer (WPT) method for an electric vehicle (EV) may include a vehicle controller or a vehicle assembly (VA) controller connected to the vehicle controller performing communications, for charging of a battery of the EV, with a ground assembly (GA) controller of a charger connected to a primary coil or a primary pad located outside the EV; and connecting the battery to a field winding of a driving motor of the EV before starting the WPT. The battery is charged by a power magnetically induced at the field winding from the primary coil.
    Type: Application
    Filed: October 19, 2017
    Publication date: May 3, 2018
    Inventors: Bum Sik KIM, Jin Hwan JUNG, Hyeon Uk KIM, Ki Young JANG, Gyu Yeong CHOE
  • Patent number: 9842546
    Abstract: Discussed is an organic light emitting display device. The organic light emitting display device in one embodiment includes a plurality of pixels configured to each include an organic light emitting device which emits light with a data current, and a pixel circuit that includes a driving transistor which supplies the data current, which is based on a difference voltage between a data voltage and a reference voltage, to the organic light emitting device, a plurality of data lines configured to respectively supply a plurality of the data voltages to the plurality of pixels, a plurality of gate lines configured to supply a gate signal to the pixels, and a plurality of reference lines connected to at least one of the pixels, and configured to supply the reference voltage to the connected pixel. The reference voltage is varied according to data of a pixel connected to a corresponding reference line.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: December 12, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Bum Sik Kim, Seung Tae Kim
  • Patent number: 9606779
    Abstract: The present invention relates to a data processing system and to a method for implementing simulation in the system, and the invention comprises: a process of inputting an application code for implementing a simulation; a process of converting the input application code into assembly data format; a process of generating basic blocks for the assembly data format; and a process of implementing the simulation via the generated basic blocks. Consequently the simulation implementation time is shortened as the simulation is implemented from instruction units to basic block units.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: March 28, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Ui Son Yoon, Bum Sik Kim, Kyoung Soo Cho, Ji Joong Moon
  • Publication number: 20170061893
    Abstract: An organic light emitting display device is discussed. The organic light emitting display device includes a first substrate including an active area that includes a plurality of pixels, and including upper, lower, left, and right inactive areas. The first substrate includes a plurality of data lines and a plurality of gate lines; a plurality of driving power lines; a cathode electrode layer; a plurality of driving power pads; a plurality of cathode connection parts provided in each of the left and right inactive areas; a first common driving power line; a second common driving power line; and a plurality of cathode power pads. Each of the first and second common driving power lines includes a plurality of divided common division lines. The plurality of driving power lines are grouped into a plurality of driving power line groups to be connected to a corresponding common division line.
    Type: Application
    Filed: November 9, 2016
    Publication date: March 2, 2017
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jae Wook KWON, Bum Sik KIM, Kil Hwan OH, Hye Mi OH
  • Patent number: 9576523
    Abstract: There is provided a display device including: a display panel including a display area consisting of a plurality of pixel areas, and a non-display area surrounding the display area; a plurality of power lines formed on the display area to supply a first voltage to the plurality of pixel areas; a first power link line connected to the plurality of first power lines, and formed on the non-display area; and a plurality of drivers connected to the display panel, and including a plurality of output pads and a plurality of first power pads, the plurality of (first) power pads disposed between the plurality of output pads and respectively connected to the plurality of first power link lines.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: February 21, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hye-Rim Kim, Bum-Sik Kim, Kyoung-Don Woo
  • Patent number: 9514673
    Abstract: Discussed is an organic light emitting display device. The organic light emitting display device includes a first substrate configured to include an active area including a plurality of pixels and upper, lower, left, and right inactive areas defined near the active area, and a second substrate facing-coupled to the first substrate. The first substrate includes a plurality of data lines and a plurality of gate lines formed in the active area, a plurality of driving power lines formed in parallel with the plurality of data lines to supply a driving voltage to the pixels, a cathode electrode layer connected to the pixels in common to supply a cathode voltage to the pixels, a plurality of driving power pads provided in each of the upper and lower inactive areas, and a plurality of cathode connection parts provided in each of the left and right inactive areas.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: December 6, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae Wook Kwon, Bum Sik Kim, Kil Hwan Oh, Hye Mi Oh
  • Patent number: 9489895
    Abstract: An organic light-emitting display device having a signal line that is shared by a first column of pixels and a second column of pixels to transmit a data signal and a sensing signal. The organic light-emitting display device includes a plurality of columns of pixels, and a plurality of signal lines extending between the plurality of columns of pixels. Each of the plurality of signal lines is configured to transmit a data signal from a data driver to the first column of pixels at first times. The data signals control the operation of an organic light-emitting element in the first column of pixels. The same signal line transmits a sensing signal from the second column of pixels to the data driver at second times. The sensing signal represents a variable property of an electrical component in a pixel of the second column of pixels.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: November 8, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Tae Kim, Bum Sik Kim
  • Patent number: 9489888
    Abstract: A method of driving an organic light emitting display device includes sensing characteristics of driving TFTs of pixels to generate sensing data at a power-on time when the organic light emitting display device is powered on, merging initial compensation data and the sensing data at the power-on time to compensate for the characteristics of the driving TFTs of all the pixels, displaying an image in a driving mode and sequentially sensing characteristics of driving TFTs of a plurality of pixels in units of one horizontal line in real time during a blank interval between frames, and sequentially compensating for the characteristics of the driving TFTs of the pixels in units of one horizontal line in real time by using a real-time sensing data generated by real-time sensing.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: November 8, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Jung Hyeon Kim, Bum Sik Kim, Seung Tae Kim, Myung-Gi Lim
  • Patent number: 9424782
    Abstract: An organic light emitting display including a display panel having pixels coupled to data lines and first power voltage lines. Each of the pixels includes an organic light emitting diode; a driving transistor coupled to the organic light emitting diode and the first power voltage lines; a first transistor coupled to the data lines and a gate electrode of the driving transistor; a second transistor configured to supply a reference voltage of the data lines to a source electrode of the driving transistor; and a capacitor coupled to the gate and source electrodes of the driving transistor.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: August 23, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hye Min Park, Bum Sik Kim, Kil Hwan Oh, Hun Ki Shin, Ki Won Son
  • Publication number: 20160232850
    Abstract: An organic light-emitting display device having a signal line that is shared by a first column of pixels and a second column of pixels to transmit a data signal and a sensing signal. The organic light-emitting display device includes a plurality of columns of pixels, and a plurality of signal lines extending between the plurality of columns of pixels. Each of the plurality of signal lines is configured to transmit a data signal from a data driver to the first column of pixels at first times. The data signals control the operation of an organic light-emitting element in the first column of pixels. The same signal line transmits a sensing signal from the second column of pixels to the data driver at second times. The sensing signal represents a variable property of an electrical component in a pixel of the second column of pixels.
    Type: Application
    Filed: April 20, 2016
    Publication date: August 11, 2016
    Inventors: Seung Tae KIM, Bum Sik KIM
  • Publication number: 20160189627
    Abstract: An organic light emitting display including a display panel having pixels coupled to data lines and first power voltage lines. Each of the pixels includes an organic light emitting diode; a driving transistor coupled to the organic light emitting diode and the first power voltage lines; a first transistor coupled to the data lines and a gate electrode of the driving transistor; a second transistor configured to supply a reference voltage of the data lines to a source electrode of the driving transistor; and a capacitor coupled to the gate and source electrodes of the driving transistor.
    Type: Application
    Filed: July 27, 2015
    Publication date: June 30, 2016
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hye Min PARK, Bum Sik KIM, Kil Hwan OH, Hun Ki SHIN, Ki Won SON
  • Patent number: 9349316
    Abstract: An organic light-emitting display device having a signal line that is shared by a first column of pixels and a second column of pixels to transmit a data signal and a sensing signal. The organic light-emitting display device includes a plurality of columns of pixels, and a plurality of signal lines extending between the plurality of columns of pixels. Each of the plurality of signal lines is configured to transmit a data signal from a data driver to the first column of pixels at first times. The data signals control the operation of an organic light-emitting element in the first column of pixels. The same signal line transmits a sensing signal from the second column of pixels to the data driver at second times. The sensing signal represents a variable property of an electrical component in a pixel of the second column of pixels.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: May 24, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Tae Kim, Bum Sik Kim
  • Patent number: 9297672
    Abstract: An interface circuit for detecting a fault in a resolver is provided. More specifically, the interface circuit includes the resolver connected to an intermediate point of a stator coil of a first output terminal for a sine wave signal and an intermediate point of the stator coil of a second output terminal for a cosine wave signal to output the sine and cosine wave signals as a common mode signal. Also includes is resolver fault detection interface unit that adjusts a gain and an offset of the sine wave signal and the cosine wave signal in order to adjust the sine wave signal and the cosine wave signal received as a common mode signal to a frequency that can be suitably applied to an analog/digital terminal of a microcomputer, and to allow high-frequency components of the sine wave signal and the cosine wave signal to pass therethrough.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: March 29, 2016
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Bum Sik Kim, Gun Soo Kang, Kang Ho Jeong, Hun Kong, Jong Kyong Lim, Young Kook Lee, Heon Young Kwak
  • Patent number: 9116019
    Abstract: Disclosed is a technique for compensating for an abnormal output of a resolver. More specifically, a central processing unit (CPU) sets a current motor position angle before compensation ?n,ORG as a current motor position angle ?n and obtains a motor position change ??n[rad] between a current sampling [n] and a previous sampling [n?1] and a motor position change ??n-1[rad] between the previous sampling [n?1] and a more previous sampling [n?2]. Subsequently, a variable A is calculated based on the above angles. The CPU determines whether to perform the compensation by comparing the calculated variable A and a calibration variable K and calculates a current motor position angle for compensation ?n[rad]. Finally, the CPU compensates for the absence of motor rotor position information with the calculated current motor position angle for compensation ?n[rad].
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: August 25, 2015
    Assignee: Hyundai Motor Company
    Inventors: Bum Sik Kim, Tae Hwan Chung, Kang Ho Jeong
  • Patent number: 9111489
    Abstract: Disclosed are an organic light emitting display device and a method of driving the same. The organic light emitting display device includes a display panel including a plurality of pixels including a pixel circuit for emitting light from an organic light emitting diode and a driving circuit unit driving the display panel. The driving method includes sensing a characteristic of a driving TFT of each of the pixels of the display panel to generate sensing data according to a user's setting using an input device, at a predetermined compensation driving time, or when an error occurs in sensing data generated by real-time sensing of each pixel of the display panel, and compensating for the characteristic of the driving TFT of each pixel by using the sensing data.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: August 18, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jeong Hyo Park, Bum Sik Kim, Jung Hyeon Kim