Patents by Inventor Tae Wook Lee

Tae Wook 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: 10809206
    Abstract: The floating-type contamination measurement apparatus according to embodiments of the present invention can provide a body part; a buoyancy providing part, which is received to the body part and provides buoyancy to the body part; and a measurement part, which is received to the body part and measures the level of contamination in a closed space.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: October 20, 2020
    Assignee: NATIONAL DISASTER MANAGEMENT RESEARCH INSTITUTE
    Inventors: Gun Sik Jeong, Hyunju Kim, KyungSu Lee, Tae Wook Lee, Jae Jeong Kim
  • Publication number: 20200191725
    Abstract: The floating-type contamination measurement apparatus according to embodiments of the present invention can provide a body part; a buoyancy providing part, which is received to the body part and provides buoyancy to the body part; and a measurement part, which is received to the body part and measures the level of contamination in a closed space.
    Type: Application
    Filed: November 29, 2017
    Publication date: June 18, 2020
    Inventors: Hyunju KIM, Gun Sik JEONG, KyungSu LEE, Tae Wook LEE, Jae Jeong KIM
  • Publication number: 20200182846
    Abstract: A device can provide an air state detection floating device capable of remaining in the air, the device comprising: a power supply unit; at least one memory for storing instructions; at least one processor; a communication unit for transmitting and receiving data; a driving unit for generating a driving force; a first sensing unit for detecting information on an air state of an enclosed space; and a second sensing unit for generating location information, wherein the instructions are executable by the processor so as to the processor to perform operations, and the operations comprise: an operation that generates a control signal for movement in the enclosed space on the basis of the data; and an operation that controls the driving unit based on the control signal.
    Type: Application
    Filed: November 1, 2018
    Publication date: June 11, 2020
    Inventors: Gun Sik JEONG, KyungSu LEE, Sung Geun BAE, Da jin sol KIM, Tae Wook LEE, Hyunju KIM
  • Patent number: 9872046
    Abstract: Discussed is an apparatus for recovering a motion vector to perform error concealment on received video stream, including: a first selecting unit selecting a first motion vector from a first slice that is above a lost slice, and selecting a second motion vector from a second slice that is below the lost slice; a second selecting unit determining at least one first orthogonal motion vector that is orthogonal to the first motion vector, and determining at least one second orthogonal motion vector that is orthogonal to the second motion vector; and a recovering unit computing a lost motion vector, comprised in the lost slice, using a weighted average of valid motion vectors, wherein the valid motion vectors include at least one of the first motion vector, the second motion vector, the first orthogonal motion vector, and the second orthogonal motion vector.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: January 16, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kevin Gatimu, Ben Lee, Tae Wook Lee, Chang Gone Kim
  • Patent number: 9430985
    Abstract: A display device including a display panel including gate and data line that cross each other; a first control signal generation unit generating a source output enable signal and a first gate output enable signal in synchronization with a data enable signal modulated according to a spread frequency clock signal; a second control signal generation unit starting to count a number of clocks of a fixed-frequency clock signal based on a point of time at which a first state of the source output enable signal ends, and outputting a second gate output enable signal when the counted number of the clocks becomes equal to a reference value; and a gate driving unit controlling an outputting of a gate signal to the gate lines using the second gate output enable signal.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: August 30, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Ho Kim, Tae-Wook Lee, Jae-Hak Kim
  • Patent number: 9380351
    Abstract: Discussed is an apparatus for transmitting encoded video stream that may include an encoder configured to encode a video stream using a predetermined compression standard; a parser configured to subdivide the encoded video stream into a plurality of sub-streams and parse the sub-streams; a MUX configured to segregate a first data which is NAL unit having SPS, PPS, or slice header and a second data which is NAL unit having slice data from the parsed sub-stream; a first packet generator configured to generate a TCP packet using the first data by the sub-stream and transmit the TCP packet through a TCP tunnel; and a second packet generator configured to generate a UDP packet using the second data by the sub-stream and transmit the UDP packet through a UDP tunnel.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: June 28, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Jing Zhao, Ben Lee, Tae Wook Lee, Chang Gone Kim
  • Patent number: 9231993
    Abstract: Discussed is an apparatus for transmitting an encoded video stream, comprising: a slice generating unit that divides a frame, comprised in a video stream, into at least one or more slice; and a transmitting unit transmitting the slice in units of a packet within a slice deadline, which is a time limit required for transmission of the slice, the transmitting unit that preferentially transmits a header packet that contain a slice header information over other packets, and the slice header that comprises of information necessary for reconstructing the slice, wherein the transmitting unit comprises: a packet transmitter that retransmits the packet when the packet fails to be transmitted within the predetermined retry limit; and a header protector performing control for the header packet to be repeatedly transmitted within the slice deadline even when number of retransmissions of the header packet exceeds the predetermined retry limit.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: January 5, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Mohammed Sinky, Ben Lee, Chang Gone Kim, Tae Wook Lee
  • Patent number: 9183790
    Abstract: A liquid crystal display device and a controlling method thereof are provided. The liquid crystal display device includes a liquid crystal display panel screen divided into a plurality of areas; a plurality of backlight sources to selectively irradiate light respectively to the divided areas of the screen; and a controller to obtain at least one intermediate brightness value associated with data for at least one of the divided areas and to control a brightness of at least one of the backlight sources corresponding to the at least one divided area according to the at least one intermediate brightness value.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: November 10, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yong Kon Lee, Tae Wook Lee
  • Publication number: 20150207834
    Abstract: Discussed is an apparatus for transmitting encoded video stream that may include an encoder configured to encode a video stream using a predetermined compression standard; a parser configured to subdivide the encoded video stream into a plurality of sub-streams and parse the sub-streams; a MUX configured to segregate a first data which is NAL unit having SPS, PPS, or slice header and a second data which is NAL unit having slice data from the parsed sub-stream; a first packet generator configured to generate a TCP packet using the first data by the sub-stream and transmit the TCP packet through a TCP tunnel; and a second packet generator configured to generate a UDP packet using the second data by the sub-stream and transmit the UDP packet through a UDP tunnel.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 23, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jing ZHAO, Ben LEE, Tae Wook LEE, Chang Gone KIM
  • Publication number: 20150071284
    Abstract: Discussed is an apparatus for transmitting an encoded video stream, comprising: a slice generating unit that divides a frame, comprised in a video stream, into at least one or more slice; and a transmitting unit transmitting the slice in units of a packet within a slice deadline, which is a time limit required for transmission of the slice, the transmitting unit that preferentially transmits a header packet that contain a slice header information over other packets, and the slice header that comprises of information necessary for reconstructing the slice, wherein the transmitting unit comprises: a packet transmitter that retransmits the packet when the packet fails to be transmitted within the predetermined retry limit; and a header protector performing control for the header packet to be repeatedly transmitted within the slice deadline even when number of retransmissions of the header packet exceeds the predetermined retry limit.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Inventors: Mohammed SINKY, Ben LEE, Chang Gone KIM, Tae Wook LEE
  • Publication number: 20150071355
    Abstract: Discussed is an apparatus for recovering a motion vector to perform error concealment on received video stream, including: a first selecting unit selecting a first motion vector from a first slice that is above a lost slice, and selecting a second motion vector from a second slice that is below the lost slice; a second selecting unit determining at least one first orthogonal motion vector that is orthogonal to the first motion vector, and determining at least one second orthogonal motion vector that is orthogonal to the second motion vector; and a recovering unit computing a lost motion vector, comprised in the lost slice, using a weighted average of valid motion vectors, wherein the valid motion vectors include at least one of the first motion vector, the second motion vector, the first orthogonal motion vector, and the second orthogonal motion vector.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: LG Display Co., Ltd.
    Inventors: Kevin GATIMU, Ben LEE, Tae Wook LEE, Chang Gone KIM
  • Patent number: 8654067
    Abstract: A backlight driving apparatus of a liquid crystal display (LCD) apparatus including a master trans and a slave trans for supplying a current to a plurality of lamps, and a master driver and a slave driver for driving the lamps, includes an operated condition unit that converts an AC voltage generated in accordance with a phase difference between a master AC voltage and a slave AC voltage fed back from the master trans and the slave trans, respectively, into an analog DC voltage; a protect controller that determines an error is generated during an operation of the lamps using the analog DC voltage and outputs an operating error signal when an error is generated; and a lamp driving controller that stops driving the master driver and the slave driver in response to the operating error signal.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 18, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Tae Wook Lee
  • Publication number: 20140043317
    Abstract: A display device including a display panel including gate and data line that cross each other; a first control signal generation unit generating a source output enable signal and a first gate output enable signal in synchronization with a data enable signal modulated according to a spread frequency clock signal; a second control signal generation unit starting to count a number of clocks of a fixed-frequency clock signal based on a point of time at which a first state of the source output enable signal ends, and outputting a second gate output enable signal when the counted number of the clocks becomes equal to a reference value; and a gate driving unit controlling an outputting of a gate signal to the gate lines using the second gate output enable signal.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 13, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Young-Ho KIM, Tae-Wook LEE, Jae-Hak KIM
  • Patent number: 8458736
    Abstract: The disk clamp apparatus and a spindle motor having the same according to the present invention has an industrial applicability in that a radial force of a claw on a disk is greater than a radial force of an arm to the disk to prevent the radial force of the arm applying to the disk from affecting the disk, whereby matched center of the clamp body with a center of the disk by the law is not affected by an arm, such that the center of the disk comes to have a relatively smaller deviation from the center and to thereby enhance the reliability of the product.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: June 4, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventor: Tae Wook Lee
  • Patent number: 8432352
    Abstract: A backlight driving circuit and a method for driving the same, which are capable of preventing a flicker phenomenon and delay of response, are disclosed. The backlight driving circuit includes a selective filtering unit for comparing dimming signals currently supplied for a current frame with dimming signals previously stored for a previous frame, to determine how abruptly an image of the current frame has varied from an image of the previous frame, and outputting the dimming signals for the current frame after modulating duty ratios of the dimming signals for the current frame selectively.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: April 30, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Tae Wook Lee
  • Patent number: 8352662
    Abstract: An apparatus and method for supporting a Hot Plug Detect (HPD) function in a portable terminal using High Definition Multimedia Interface (HDMI) are provided. The apparatus includes an HPD unit for generating an HPD signal using an operation voltage of a first modem upon connecting to a display apparatus through an HDMI cable, the first modem for enabling a second modem upon detecting the HPD signal, and the second modem for outputting video data upon being enabled by the first modem.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: January 8, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ha-Jung Yun, Hae-Jun An, Tae-Wook Lee
  • Patent number: 8294312
    Abstract: Provided is a sintered bearing with oil for a spindle motor. The bearing is characterized in that at least one portion of upper and lower sides of the bearing is denser than other portions of the bearing.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: October 23, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventors: Chung Hyun Song, Tae Wook Lee
  • Patent number: 8243010
    Abstract: An LCD device with an improved contrast ratio and a reduced electric power consumption and a driving method thereof are disclosed. The LCD device and the driving method thereof generate a data modulation control signal using single frame image data to be displayed on a liquid crystal panel, and then generating a plurality of modulated local dimming control signals for a plurality of divisional regions of the divided single frame image data. A modulated data, in which the single frame image data is compensated with the data modulation control signal is generated and applied to the liquid crystal panel. A plurality of driver signals each corresponding to the modulated local dimming control signals are applied to the blocks of a backlight unit. The divisional regions are opposite to the blocks, respectively.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: August 14, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Tae Wook Lee, Jin Chul Choi, Ji Kyoung Kim
  • Patent number: 8223116
    Abstract: An LCD device adapted to apply an optimized luminance in correspondence with a brightness of each divisional region of image is disclosed. The LCD device uses dimming curves, which are provided differently from each other, for divisional regions which are divided from one frame and have different pixel numbers. Therefore, the LCD device can a luminance optimized to a brightness of each divisional region of image, thereby preventing a luminance mismatching phenomenon and a luminance nullity phenomenon.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: July 17, 2012
    Assignee: LG Display Co. Ltd.
    Inventors: Tae Wook Lee, Ji Kyoung Kim
  • Publication number: 20120147063
    Abstract: Disclosed is a display device which facilitates to display an image with the same color as an external border (external case) of a liquid crystal display (LCD) device, or to display an image satisfying a user's taste during a no-signal period, and a method for driving the display device, wherein the display device comprises a video controller which outputs interior data in accordance with a preset mode during a no-signal period; a timing controller which arranges the interior data, supplied from the video controller, in a frame unit, and outputs the arranged interior data; a data driver which converts the interior data of the frame unit, supplied from the timing controller, into analog video data, and outputs the analog video data; and a liquid crystal display panel which displays an image by the use of analog video data based on the interior data during the no-signal period.
    Type: Application
    Filed: November 22, 2011
    Publication date: June 14, 2012
    Inventors: Tae Wook Lee, Chang Gone Kim