Patents by Inventor Dong-soo Lee

Dong-soo 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).

  • Patent number: 9553692
    Abstract: Disclosed are a method and system for determining and controlling power of an optical transmitter of an optical network unit (ONU) for a time and wavelength division multiplexing passive optical network (TWDM-PON). The system includes an RSSI collector configured to collect received signal strength indication (RSSI) information from upstream optical signals received from the ONUs connected to optical line terminal (OLT) ports, an ONU power level determiner configured to gather the pieces of RSSI information about the ONUs from the RSSI collector, and to determine power of optical transmitters of the ONUs based on the gathered information, and a power mode controller configured to receive power mode setting information of the optical transmitters of the ONUs from the ONU power level determiner, and to generate a physical layer operation and maintenance (PLOAM) message to control power modes of the ONUs based on the received power mode setting information.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: January 24, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hark Yoo, Dong Soo Lee, Geun Yong Kim, Sung Chang Kim, Hee Do Kim, Jae In Kim
  • Patent number: 9546443
    Abstract: Disclosed are a washing machine and a control method thereof. The control method of the washing machine, including two or more balancing units which are independently movable, includes sensing the weight of laundry to be washed while identically maintaining a phase difference between the two or more balancing units and rotating a drum, and reducing eccentricity of the drum while moving at least one of the two or more balancing units simultaneously with rotation of the drum.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: January 17, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Dong Soo Lee, Chang Oh Kim
  • Publication number: 20170006678
    Abstract: The present invention relates to a power apparatus for an LED lighting, and more specifically, to an LED lighting comprising: a filter for blocking noise from an inputted AC power; a rectifier, which is connected to the filter, for converting AC power into DC power; a power factor compensation circuit for controlling the power factor of power received from the rectifier; a central control circuit for controlling the operation of the power apparatus for the LED lighting; and an LED control circuit for controlling power inputted through the power factor compensation circuit and providing same to an LED, wherein the power factor compensation circuit includes a bypass element connected between an input end and an output end.
    Type: Application
    Filed: November 26, 2014
    Publication date: January 5, 2017
    Inventors: Dong Soo LEE, Joo Hoon KIM, Seok YOON
  • Publication number: 20160373207
    Abstract: Disclosed is a method and an apparatus for selecting a wavelength in a hybrid Passive Optical Network (PON) system. The method of selecting a wavelength by a wavelength selecting apparatus in a hybrid passive optical network system includes: performing synchronization with any one of a plurality of downstream wavelengths; when the synchronization is succeeded, determining whether to select the synchronized downstream wavelength for a registration to an optical line terminal; and when it is determined to select the synchronized downstream wavelength, performing the registration to the optical line terminal through the synchronized downstream wavelength.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 22, 2016
    Inventors: Geun Yong KIM, Hark YOO, Sung Chang KIM, Dong Soo LEE
  • Patent number: 9524503
    Abstract: A game exposing method and system is provided. The game exposing method includes displaying a game web site in a first folder of a file manager application of a user terminal; and displaying a game provided from the game web site in a second folder of the file manager application. Accordingly, it is possible to easily access the game portal web site and the game pages to play the games while operating in the file manager application.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: December 20, 2016
    Assignee: NHN Entertainment Corporation
    Inventor: Dong-soo Lee
  • Publication number: 20160344475
    Abstract: Disclosed herein are a handheld device and method for measuring the quality of an optical link, which are capable of simultaneously measuring the strength of an optical signal and the quality of an optical link at an optical network terminal in a Fiber-to-the-Home (FTTH) network. A presented handheld device for measuring a quality of an optical link includes an optical signal input port for receiving an optical signal, an optical power measurement unit for measuring a power of the optical signal, an output unit for outputting one or more of a measured power value of the optical signal and results of quality measurement of an optical link, based on interworking with an optical network terminal, and a control unit for storing the measured power value of the optical signal and performing a process for quality measurement of the optical link.
    Type: Application
    Filed: January 26, 2016
    Publication date: November 24, 2016
    Inventors: Sung-Chang KIM, Geun-Yong KIM, Jae-In KIM, Hark YOO, Dong-Soo LEE
  • Patent number: 9484087
    Abstract: In one embodiment, the memory element may include a first electrode, a second electrode spaced apart from the first electrode, a memory layer between the first electrode and the second electrode, and an auxiliary layer between the memory layer and the second electrode. The auxiliary layer provides a multi-bit memory characteristic to the memory layer.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: November 1, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-bum Lee, Chang-jung Kim, Young-bae Kim, Myoung-jae Lee, Dong-soo Lee, Man Chang, Seung-ryul Lee, Kyung-min Kim
  • Publication number: 20160315165
    Abstract: An integrated circuit device includes a substrate including an active region, an interfacial layer including a lower insulating layer on the active region, the lower insulating layer doped with a chalcogen element having an atomic weight equal to or greater than 16, a gate insulation layer on the interfacial layer, and a gate electrode on the gate insulation layer.
    Type: Application
    Filed: December 1, 2015
    Publication date: October 27, 2016
    Inventors: Dong-soo LEE, Hu-yong LEE, Won-keun CHUNG, Hoon-joo NA, Taek-soo JEON, Sang-jin HYUN
  • Publication number: 20160248377
    Abstract: An injection locked frequency divider is disclosed. The injection-locked frequency divider includes a sub-harmonic injection-locked oscillator, a reference clock divider, a counter, and a variable load resistor control unit. The sub-harmonic injection-locked oscillator has variable load resistors that are adjusted in response to a resistance adjustment signal, and, when oscillation frequency determined based on the magnitudes of the variable load resistors is a sub-harmonic of an injection signal, outputs signals having the oscillation frequency as divided output signals. The reference clock divider generates a count-enable signal from a reference clock signal according to a reference division ratio. The counter generates divided output count signals based on the divided output signals in response to the count-enable signal.
    Type: Application
    Filed: December 11, 2015
    Publication date: August 25, 2016
    Applicant: Research & Business Foundation Sungkyunkwan University
    Inventors: Kang Yoon LEE, Sang Yun KIM, Young Jun PARK, Dong Soo LEE
  • Publication number: 20160234007
    Abstract: A clock and data recovery circuit is disclosed herein. The clock and data recovery circuit includes a phase detection unit, a charge pump, a loop filter, a voltage control oscillator, and a frequency detection unit. The voltage control oscillator has oscillation frequency that is variable in response to a frequency adjustment signal, and outputs an oscillation signal. The frequency detection unit includes a reference clock divider, a counter, and an oscillation frequency control unit. The reference clock divider generates a count-enable signal based on a reference clock signal. The counter generates an oscillation count signal by counting the pulses of the oscillation signal of the voltage control oscillator or the pulses of divided signals resulting from dividing the oscillation signal while the count-enable signal is being enabled. The oscillation frequency control unit compares a target count value with the value of the oscillation count signal, and outputs the frequency adjustment signal.
    Type: Application
    Filed: December 11, 2015
    Publication date: August 11, 2016
    Applicant: Research & Business Foundation Sungkyunkwan Univer sity
    Inventors: Kang Yoon LEE, Sang Yun KIM, In Seong KIM, Seong Jin OH, Dong Soo LEE
  • Publication number: 20160172450
    Abstract: The present disclosure relates to a semiconductor device including an oxygen gettering layer between a group III-V compound semiconductor layer and a dielectric layer, and a method of fabricating the semiconductor device. The semiconductor device may include a compound semiconductor layer; a dielectric layer disposed on the compound semiconductor layer; and an oxygen gettering layer interposed between the compound semiconductor layer and the dielectric layer. The oxygen gettering layer includes a material having a higher oxygen affinity than a material of the compound semiconductor layer.
    Type: Application
    Filed: February 23, 2016
    Publication date: June 16, 2016
    Inventors: Dong-soo LEE, Myoung-jae LEE, Seong-ho CHO, Mohammad Rakib UDDIN, David SEO, Moon-seung YANG, Sang-moon LEE, Sung-hun LEE, Ji-hyun HUR, Eui-chul HWANG
  • Patent number: 9353840
    Abstract: An automated manual transmission apparatus for a vehicle, may include a shifting unit equipped with a plurality of shifting mechanisms that implement different gear ratios between an input shaft and an output shaft, and a continuous transmission mechanism that may be disposed between the output shaft and a power supply, wherein the continuous transmission mechanism selectively supplies power to the input shaft of the shifting unit and selectively transmits power from the power supply to the output shaft with a continuous transmission gear ratio.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: May 31, 2016
    Assignee: Hyundai Motor Company
    Inventors: Soon Ki Eo, Dong Soo Lee, Jong Yun Park
  • Publication number: 20160126068
    Abstract: A diagnosis system for pulsed plasma includes an optical emission sensor (OES) to receive light generated the pulsed plasma, the pulsed plasma having been generated in accordance with a pulse signal, a digitizer to synchronize the electrical signal with the pulse signal, and an analyzer to analyze the synchronized electrical signal.
    Type: Application
    Filed: August 17, 2015
    Publication date: May 5, 2016
    Inventors: Dong-soo LEE, Sung-ho JANG, Byeong-hee KIM, Doug-yong SUNG, Dong-ok SHIN
  • Patent number: 9306008
    Abstract: The present disclosure relates to a semiconductor device including an oxygen gettering layer between a group III-V compound semiconductor layer and a dielectric layer, and a method of fabricating the semiconductor device. The semiconductor device may include a compound semiconductor layer; a dielectric layer disposed on the compound semiconductor layer; and an oxygen gettering layer interposed between the compound semiconductor layer and the dielectric layer. The oxygen gettering layer includes a material having a higher oxygen affinity than a material of the compound semiconductor layer.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 5, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-soo Lee, Myoung-Jae Lee, Seong-ho Cho, Mohammad Rakib Uddin, David Seo, Moon-seung Yang, Sang-moon Lee, Sung-hun Lee, Ji-hyun Hur, Eui-chul Hwang
  • Patent number: 9267228
    Abstract: A laundry treating device is disclosed, which includes a cabinet that defines an exterior appearance of the device, a tub installed in the cabinet, a lower water holding part recessed in a lower portion of the tub to form a predetermined space, and a water drain hose connected with a side surface of the lower water holding part. The laundry treating device is capable of providing a sufficient water drain height, with improved inner space utilization.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: February 23, 2016
    Assignee: LG ELECTRONICS
    Inventors: Na Eun Kim, Ki Chul Woo, Sung Ryong Kim, Dong Soo Lee, Sung Min Kim, Dong Won Kim
  • Publication number: 20160020913
    Abstract: Provided is a power saving method of an optical network terminal and an optical line terminal. The optical network terminal may receive a sleep synchronization message about a first sleep group from the optical line terminal, and when the optical network terminal is included in the first sleep group, may turn OFF an optical transmitter and turn ON the optical transmitter after a first sleep cycle of the first sleep group is elapsed, thereby saving power.
    Type: Application
    Filed: July 30, 2014
    Publication date: January 21, 2016
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung Chang KIM, Geun Yong KIM, Hee Do KIM, Hark YOO, Dong Soo LEE, Young Suk LEE
  • Patent number: 9233663
    Abstract: Disclosed herein is a wiper lever assembly which is configured to prevent detachment of end cover members, which includes a lever member (a center cover lever, secondary levers and yoke levers) gripping a rubber blade disposed thereunder, and an end cover member which covers an end of the lever member from above and which includes claws formed on both lateral sides thereof. The claws may be extended inwardly from the end cover and engage with both lateral sides of a lower surface of the lever member to grip the lever member. The end cover member includes a support wall which is formed at the center of a width of the end cover member and is extended downwardly therefrom, and the lever member includes a receptor (an insert tube and a proximal insert tube) in which the support wall is fitted from above.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: January 12, 2016
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Asmo Co. Ltd.
    Inventors: Ki Young Lee, Dong Soo Lee, In Kwang Lee, In Gue Cha, Heui Geon Lee, Shinichirou Amano
  • Patent number: 9212726
    Abstract: An automated manual transmission may include a first input shaft and a second input shaft disposed in parallel with each other to form a plurality of stages with a common output shaft, a first switching mechanism that directly transmits or cuts power provided from a flywheel of an engine to or from the first input shaft or the second input shaft, and a second switching mechanism that transmits or cuts power provided from the flywheel through the clutch to or from the first input shaft or the second input shaft.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: December 15, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Soon Ki Eo, Dong Soo Lee, Jong Yun Park
  • Patent number: 9197353
    Abstract: Provided is an OLT including a wavelength splitter that splits all upstream optical signals with different wavelengths received from at least one ONU according to wavelength, at least one receiver that receive the optical signals split by the wavelength splitter according to wavelength, a wavelength selector that allocates an upstream transmission wavelength of the at least one ONU, and a transmitter that transmits wavelength allocation information allocated by the wavelength selector to the at least one ONU.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: November 24, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Dong-Soo Lee, Sung-Chang Kim, Geun-Yong Kim, Hark Yoo, Young-Suk Lee
  • Patent number: 9187064
    Abstract: Disclosed is a wiper lever assembly that includes upper and lower levers, a plurality of pivotal connecting parts that are pivotally coupled to a longitudinal end of the upper lever, and a plurality of mating pivotal connecting parts that are disposed on the lower lever. The assembly further includes an upper pressing arc portion disposed on the upper lever over the plurality of pivotal pressing parts. The upper pressing arc is in slidable contact with a lower engaging arc portion disposed on the lower lever. In addition, a radius of curvature of a concave arc of the upper pressing arc portion and the lower engaging arc portion is larger than that of a convex arc of the upper pressing arc portion and the lower engaging arc portion.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 17, 2015
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Asmo Co., Ltd.
    Inventors: Ki Young Lee, Dong Soo Lee, In Kwang Lee, In Gue Cha, Heui Geon Lee, Amano Shinichirou