Patents by Inventor Seong Ho Kang

Seong Ho Kang 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: 20030058194
    Abstract: A method of driving a plasma display panel and an apparatus thereof wherein a switching frequency of a data drive IC is reduced to decrease power consumption required for an addressing operation. In the method and apparatus, a plurality of write sub-fields at which a writing data for turning on a cell is subject to a binary coding and a plurality of erase sub-fields for expressing a gray scale value while turning off a desired cell with respect to the cells having been turned on the previous sub-fields including said write sub-fields are established. An erase data having a logic value for turning off the cells is mapped on erase sub-fields, the number of which is smaller than that of said erase sub-fields. A data having a second logic value different from a logical value of said erase data is mapped onto the remaining erase sub-fields other than the erase sub-field on which said erase data has been mapped.
    Type: Application
    Filed: August 20, 2002
    Publication date: March 27, 2003
    Applicant: LG Electronics Inc.
    Inventor: Seong Ho Kang
  • Patent number: 6525701
    Abstract: Method for driving a plasma display panel, the panel having scan electrode lines and sustain electrode lines disposed alternatively on an effective display area of a substrate, a first black matrix formed on a region between even numbered scan electrode lines and odd numbered sustain electrode lines, and a second matrix formed on a region between odd numbered scan electrode lines and even numbered sustain electrode lines, the method, during a reset discharge period, including the steps of (1) conducting an erase discharge at a region under the first black matrix formed between the odd numbered scan electrode lines and the even numbered sustain electrode lines, and (2) conducting an erase discharge at a region under the second black matrix formed between the even numbered scan electrode lines and the odd numbered sustain electrode lines, thereby inducing a reset discharge that makes all wall charge states of cells uniform to occur at a position under a black matrix during a reset period, whereby significantly
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: February 25, 2003
    Assignee: LG Electronics Inc.
    Inventor: Seong Ho Kang
  • 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
  • Publication number: 20020130825
    Abstract: A method and apparatus for expressing a gray level with a decimal value in a plasma display panel that is capable of enhancing a picture quality. In the method and apparatus, a sustaining pulse is applied only to any one electrode of a sustaining electrode Fair to thereby express a gray level with a decimal value.
    Type: Application
    Filed: January 16, 2002
    Publication date: September 19, 2002
    Applicant: LG ELECTRONICS INC.
    Inventor: Seong Ho Kang
  • Patent number: 6448961
    Abstract: A driving circuit of a PDP is disclosed. To minimize loading time of a digital picture signal in a driving method of a PDP, there is provided a decoder between an output terminal of a conventional shift register and an input terminal of a latch part. Alternatively, instead of the shift register, there are provided a decoder and a line selector between an input terminal of n bit scan data and an input terminal of a latch part. Therefore, it is possible to realize a driving circuit of an AC PDP having high resolution of pixels of 640×480 or more, in which loading time of scan data is 1 &mgr;s or below.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: September 10, 2002
    Assignee: LG Electronics Inc.
    Inventor: Seong Ho Kang
  • Patent number: 6400347
    Abstract: There is applied a a method for driving sustain lines in a plasma display panel, in which when the white balance is adjusted considering the characteristic of the panel, an erase pulse is inserted by the color in the period in which the sustain pulse is applied, so that the pulses of a ratio required in good white balance can be applied.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: June 4, 2002
    Assignee: LG Electronics Inc.
    Inventor: Seong-Ho Kang
  • Publication number: 20020033675
    Abstract: A plasma display panel driving method and apparatus that is capable of driving a PDP at a high speed as well as improving the contrast. In the method, at least one selective writing sub-field is used to turn on discharge cells selected in an address interval. At least one selective erasing sub-field is used to turn off the discharge cells selected in the address interval. The selective writing sub-field and the selective erasing sub-field are arranged within one frame.
    Type: Application
    Filed: March 13, 2001
    Publication date: March 21, 2002
    Inventors: Seong Ho Kang, Jang Hwan Cho, Gop Sick Kim, Eung Kwan Lee
  • Patent number: 6340867
    Abstract: A plasma display panel that is capable of being driven with an analog image signal by an active driving system and a driving method and apparatus thereof driving apparatus are disclosed. In the method, an address voltage corresponding to the image signal is charged in a charge device provided for each cell at an address step. A sustaining discharge is generated during a period proportional to the address voltage charged in the charge device at an automatic firing and sustaining discharge step. Accordingly, the plasma display panel is driven with an analog image signal to reduce the address interval and thus relatively lengthen the discharge sustaining interval, thereby improving the brightness dramatically and preventing the generation of a contour noise caused by a discontinuity of an emitting pattern from the convention digital gray level realization.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: January 22, 2002
    Assignee: LG Electronics Inc.
    Inventor: Seong Ho Kang
  • Patent number: 6281628
    Abstract: The present invention relates to a plasma display panel in which a plurality of row electrodes are arranged to be crossed with a plurality of column electrodes in a plurality of cells, and one row electrode is concerned in the electric discharge of two adjacent cell groups and a driving method thereof. The row electrode has a transparent electrode with a plurality of projecting electrode parts which are alternately projected upward and downward with a predetermined width along the row axis and an opaque electrode formed at the lower part of the row axis of the transparent electrode. The column electrode is arranged on the column axis of the projecting electrode part and the row electrode concerns the discharge of two adjacent column-direction cell groups by the interaction with two other row electrodes adjacent in a column direction.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: August 28, 2001
    Assignee: LG Electronics Inc.
    Inventors: Tae-Wan Choi, Seong-Ho Kang
  • Patent number: 6281633
    Abstract: A plasma display panel driving apparatus that is capable of reducing the number of optical conductive devices. In the plasma display panel driving apparatus, a first controller generates control data for controlling the driving integrated circuits. A second controller drives the first controller. An optical conductive device for transmitting a light signal from the second control to the first control.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: August 28, 2001
    Assignee: LG Electronics Inc.
    Inventors: Eung Kwan Lee, Seong Ho Kang
  • Publication number: 20010015724
    Abstract: A driving circuit of a PDP is disclosed. To minimize loading time of a digital picture signal in a driving method of a PDP, there is provided a decoder between an output terminal of a conventional shift register and an input terminal of a latch part. Alternatively, instead of the shift register, there are provided a decoder and a line selector between an input terminal of n bit scan data and an input terminal of a latch part. Therefore, it is possible to realize a driving circuit of an AC PDP having high resolution of pixels of 640×480 or more, in which loading time of scan data is 1 &mgr;s or below.
    Type: Application
    Filed: April 2, 2001
    Publication date: August 23, 2001
    Applicant: LG Electronics Inc.
    Inventor: Seong Ho Kang
  • Patent number: 6239775
    Abstract: A driving circuit of a PDP is disclosed. To minimize loading time of a digital picture signal in a driving method of a PDP, there is provided a decoder between an output terminal of a conventional shift register and an input terminal of a latch part. Alternatively, instead of the shift register, there are provided a decoder and a line selector between an input terminal of n bit scan data and an input terminal of a latch part. Therefore, it is possible to realize a driving circuit of an AC PDP having high resolution of pixels of 640×480 or more, in which loading time of scan data is 1 &mgr;s or below.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: May 29, 2001
    Assignee: LG Electronics Inc.
    Inventor: Seong Ho Kang
  • Patent number: 5745447
    Abstract: A three-axis moving actuator for an optical pickup has a base, an object lens positioned on an optical axis, and a lens holder having two side planes parallel with a radial direction of a disk track and two side planes parallel with a tangential direction of the disk track. The object lens is fixed to the lens holder. A plurality of suspension members is provided for supporting the lens holder such that the lens holder is movable above the base. First and third magnets are installed on the base to face the two side planes parallel with the radial direction of the disk track, respectively, and second and fourth magnets are installed on the base to face the two side planes parallel with the tangential direction of the disk track, respectively. A focus coil is wound around the lens holder, and first to fourth tracking coil pairs are attached to the focus coil to face the first to fourth magnets, respectively.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: April 28, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Seong-ho Kang