Patents by Inventor Bon Cheol Koo

Bon Cheol Koo 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).

  • Publication number: 20190391899
    Abstract: A computer program stored in a computer readable storage medium according to an exemplary embodiment of the present disclosure includes: commands for making a computer perform operations, in which the operations include: receiving query performance details generated while performing a query from a database server; storing the received query performance details in a storage unit; generating an audit log based on the query performance details and audit setting information stored in the storage unit; and storing the audit log in an audit log storage unit.
    Type: Application
    Filed: June 28, 2018
    Publication date: December 26, 2019
    Inventors: Ji Mahn MOON, Bon Cheol KOO, Changho Hwang, Sunkyun Jin, Sangyoung Park
  • Patent number: 8471784
    Abstract: This invention relates to a driving apparatus of a plasma display panel that is capable of being operated stable, regardless of temperature. A driving apparatus of a plasma display panel according to the present invention includes a panel having a scanning electrode for receiving a scanning pulse in an address period and an address electrode for receiving a date pulse synchronized with the scanning pulse in the address period; and a pulse width controller for changing the width of the scanning pulse when the panel is driven at a low temperature.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: June 25, 2013
    Assignee: LG Electronics Inc.
    Inventors: Soo Seok Sim, Won Tae Kim, Bon Cheol Koo, Seong Ho Kang
  • Patent number: 7561153
    Abstract: An apparatus and method of driving a plasma display panel for reducing power consumption is disclosed. In the apparatus, a sub-field mapping unit maps a data inputted from the exterior thereof onto a sub-field pattern stored in advance. An APL calculator calculates an APL corresponding to said data inputted from the exterior and generating an information about the number of sustaining pulses corresponding to the calculated APL. A load detector receives the mapped data from the sub-field mapping unit to generate a control signal in response to whether or not a data for each sub-field is supplied. A waveform generator controls a sustaining pulse applied to a panel in response to said information about the number of sustaining pulses and said control signal.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: July 14, 2009
    Assignee: LG Electronics Inc.
    Inventors: Jae-Chan Lee, Bon-Cheol Koo
  • Patent number: 7538748
    Abstract: This invention relates to a driving apparatus of a plasma display panel that is capable of being operated stable, regardless of temperature. A driving apparatus of a plasma display panel according to the present invention includes a panel having a scanning electrode for receiving a scanning pulse in an address period and an address electrode for receiving a date pulse synchronized with the scanning pulse in the address period; and a pulse width controller for changing the width of the scanning pulse when the panel is driven at a low temperature.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: May 26, 2009
    Assignee: LG Electronics Inc.
    Inventors: Soo Seok Sim, Won Tae Kim, Bon Cheol Koo, Seong Ho Kang
  • Patent number: 7515119
    Abstract: The present invention discloses a method and an apparatus for calculating an optimal Average Picture Level (APL) in a plasma display of asymmetric cell configuration wherein each red, green and blue cell has asymmetric size and a plasma display using the same.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: April 7, 2009
    Assignee: LG Electronics Inc.
    Inventors: Yong Duek Kim, Bon Cheol Koo, Jae Chan Lee, Myung Kwan Ko, Mi Young Cho
  • Patent number: 7215316
    Abstract: This invention relates to a driving apparatus of a plasma display panel that is capable of being operated stable, regardless of temperature. A driving apparatus of a plasma display panel according to the present invention includes a panel having a scanning electrode for receiving a scanning pulse in an address period and an address electrode for receiving a data pulse synchronized with the scanning pulse in the address period; and a pulse width controller for changing the width of the scanning pulse when the panel is driven at a low temperature.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: May 8, 2007
    Assignee: LG Electronics Inc.
    Inventors: Soo Seok Sim, Won Tae Kim, Bon Cheol Koo, Seong Ho Kang
  • Publication number: 20070024609
    Abstract: An apparatus and method of driving a plasma display panel for reducing power consumption is disclosed. In the apparatus, a sub-field mapping unit maps a data inputted from the exterior thereof onto a sub-field pattern stored in advance. An APL calculator calculates an APL corresponding to said data inputted from the exterior and generating an information about the number of sustaining pulses corresponding to the calculated APL. A load detector receives the mapped data from the sub-field mapping unit to generate a control signal in response to whether or not a data for each sub-field is supplied. A waveform generator controls a sustaining pulse applied to a panel in response to said information about the number of sustaining pulses and said control signal.
    Type: Application
    Filed: July 23, 2004
    Publication date: February 1, 2007
    Applicant: LG ELECTRONICS INC.
    Inventors: Jae-Chan Lee, Bon-Cheol Koo
  • Patent number: 7079088
    Abstract: A plasma display panel and a driving method thereof that is capable of generating a sinusoidal initialization waveform. In the panel, a sinusoidal wave is used for forming wall charges.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: July 18, 2006
    Assignee: LG Electronics Inc.
    Inventors: Bon-Cheol Koo, Eung-Kwan Lee, Bong-Koo Kang, Young-Hwan Kim, Sang-Jin Yun, Yun-Kwon Jung, Ju-Won Seo, Joong-Min Ra, Bong-Hyun Lee, Hyun-Mok Yu
  • Patent number: 7057585
    Abstract: A method may be provided for setting an average picture level. This may include setting an average picture level with a fixed number of steps based on a pre-determined gray level range, deriving a low brightness intensifying coefficient, deriving a high brightness intensifying coefficient, deriving a first constant representing an average increase rate of brightness, and calculating a number of sustain pulses corresponding to a gray level of a video signal currently inputted based on the derived low brightness intensifying coefficient, the derived high brightness intensifying coefficient and the derived first constant.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: June 6, 2006
    Assignee: LG Electronics Inc.
    Inventors: Bong Koo Kang, Seong Ho Kang, Bon Cheol Koo
  • Publication number: 20060114180
    Abstract: A plasma display panel and a driving method thereof that is capable of generating a sinusoidal initialization waveform. In the panel, a sinusoidal wave is used for forming wall charges.
    Type: Application
    Filed: January 13, 2006
    Publication date: June 1, 2006
    Inventors: Bon-Cheol Koo, Eung-Kwan Lee, Bong-Koo Kang, Young-Hwan Kim, Sang-Jin Yun, Yun-Kwon Jung, Ju-Won Seo, Joong-Min Ra, Bong-Hyun Lee, Hyun-Mok Yu
  • Publication number: 20040212557
    Abstract: A plasma display panel and a driving method thereof that is capable of generating a sinusoidal initialization waveform. In the panel, a sinusoidal wave is used for forming wall charges.
    Type: Application
    Filed: July 10, 2003
    Publication date: October 28, 2004
    Inventors: Bon-Cheol Koo, Eung-Kwan Lee, Bong-Koo Kang, Young-Hwan Kim, Sang-Jin Yun, Yun-Kwon Jung, Ju-Won Seo, Joong-Min Ra, Bong-Hyun Lee, Hyun-Mok Yu
  • Publication number: 20040183764
    Abstract: The present invention discloses a method and an apparatus for calculating an optimal Average Picture Level (APL) in a plasma display of asymmetric cell configuration wherein each red, green and blue cell has asymmetric size and a plasma display using the same.
    Type: Application
    Filed: March 19, 2004
    Publication date: September 23, 2004
    Applicant: LG Electronics Inc.
    Inventors: Yong Duek Kim, Bon Cheol Koo, Jae Chan Lee, Myung Kwan Ko, Mi Young Cho
  • Patent number: 6693609
    Abstract: An optimal light-emission pattern generation method for a plasma display panel according to an embodiment of the present invention includes steps of determining a plurality of light-emission patterns with respect to an arbitrary gray level; calculating a contour noise degree between a contour noise free gray level being set in advance and the light-emission patterns given to each gray level in plurality; and selecting a light-emission pattern whose contour noise degree is minimal as a light-emission pattern with respect to an arbitrary gray level.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: February 17, 2004
    Assignee: LG Electronics Inc.
    Inventors: Nam Kyu Lee, Bon Cheol Koo, Ki Sang Hong, Jae Woo Kim, Yong Duek Kim, Seong Ho Kang
  • Publication number: 20030098824
    Abstract: There is explained a method of setting an average picture level that is adaptive for preventing a brightness inversion phenomenon.
    Type: Application
    Filed: November 27, 2002
    Publication date: May 29, 2003
    Applicant: LG Electronics Inc.
    Inventors: Bong Koo Kang, Seong Ho Kang, Bon Cheol Koo
  • Patent number: 6559816
    Abstract: A line erasing method and apparatus for a plasma display panel that is capable of reducing a brightness difference between lines thereof. In the method and apparatus, a load amount per line is detected for lines including a pair of electrodes for causing a sustaining discharge to control a sustaining interval in accordance with a deviation in the load amount per line.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: May 6, 2003
    Assignee: LG Electronics Inc.
    Inventors: Bon Cheol Koo, Jae Hyuck Lee
  • Publication number: 20030080927
    Abstract: This invention relates to a driving apparatus of a plasma display panel that is capable of being operated stable, regardless of temperature.
    Type: Application
    Filed: October 23, 2002
    Publication date: May 1, 2003
    Applicant: LG Electronics Inc.
    Inventors: Soo Seok Sim, Won Tae Kim, Bon Cheol Koo, Seong Ho Kang
  • Publication number: 20020175922
    Abstract: A flicker-eliminating method and apparatus for a plasma display panel that is capable of eliminating a flicker phenomenon caused by a different maximum light-emission time. In the method and apparatus, at least two modes in which at least one of said brightness weighting value and the number of said sub-fields are different from each other are established. The sub-field given by the maximum brightness weighting value is arranged at an initial part of the frame in each of said modes.
    Type: Application
    Filed: May 22, 2002
    Publication date: November 28, 2002
    Applicant: LG Electronics Inc.
    Inventors: Bon Cheol Koo, Seong Cheol Shin
  • Publication number: 20020158819
    Abstract: This invention relates to a driving method and apparatus for a plasma display panel, and more particularly to a method of generating an optimal light-emission pattern for a plasma display panel in order to select a light-emission pattern where a moving picture pseudo contour noise is minimized.
    Type: Application
    Filed: December 5, 2001
    Publication date: October 31, 2002
    Applicant: LG ELECTRONICS INC.
    Inventors: Nam Kyu Lee, Bon Cheol Koo, Ki Sang Hong, Jae Woo Kim, Yong Duek Kim, Seong Ho Kang