Patents by Inventor Woo-Joo Lee

Woo-Joo 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: 10977988
    Abstract: Provided is a display device including a display panel, a power delivery network (PDN), an image controller, and a PDN controller. The display panel may include a plurality of sub-panels. The PDN may be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal. The image controller may receive to store frame image data, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data. The PDN controller may generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and may provide the generated size adjusting signal to the image controller. The size adjusting signal may adjust the window size.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: April 13, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Joo Lee, Suk Ho Lee, Kyung Jin Byun, Nak Woong Eum
  • Publication number: 20200234635
    Abstract: Provided is a display device including a display panel, a power delivery network (PDN), an image controller, and a PDN controller. The display panel may include a plurality of sub-panels. The PDN may be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal. The image controller may receive to store frame image data, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data. The PDN controller may generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and may provide the generated size adjusting signal to the image controller. The size adjusting signal may adjust the window size.
    Type: Application
    Filed: April 2, 2020
    Publication date: July 23, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Woo Joo LEE, Suk Ho LEE, Kyung Jin BYUN, Nak Woong EUM
  • Patent number: 10650732
    Abstract: Provided is a display device including a display panel, a power delivery network (PDN), an image controller, and a PDN controller. The display panel may include a plurality of sub-panels. The PDN may be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal. The image controller may receive to store frame image data, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data. The PDN controller may generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and may provide the generated size adjusting signal to the image controller. The size adjusting signal may adjust the window size.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: May 12, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Joo Lee, Suk Ho Lee, Kyung Jin Byun, Nak Woong Eum
  • Publication number: 20190209430
    Abstract: The present invention relates to an integrated liquid-circulating dual pipe lamp comprising: a lamp unit which has a plurality of coils and filaments thereinside, and which has a position-fixing ring for fixing positions of the filaments; a lamp housing which has the lamp unit thereinside, and which has a circulation hole formed thereon so that liquid circulates outside the lamp unit at a predetermined temperature; watertight members which seal both end parts of the lamp housing, and into/through which both end parts of the lamp unit are inserted and penetrate; a liquid-circulation member which is coupled to the watertight member, which supplies a predetermined amount of liquid towards the circulation hole so as to circulate the same, and which discharges the circulating liquid according to the temperature of the liquid; and a reflection member in which the lamp housing is mounted.
    Type: Application
    Filed: February 1, 2018
    Publication date: July 11, 2019
    Inventor: Woo Joo Lee
  • Patent number: 10262608
    Abstract: A display device includes a display unit including a plurality of pixels, a plurality of gate lines and a plurality of data lines which are connected to the plurality of pixels, a data driver applying data voltages to the plurality of data lines, and a gate driver delaying and outputting first gate signals applied to gate lines among the plurality of gate lines in a first sub-frame included in one frame and advancing and outputting second gate signals which are applied to remaining gate lines among the plurality of gate lines in a second sub-frame.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: April 16, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ik Hyun Ahn, Woo Joo Lee, Hyun Sik Hwang, Bong Im Park
  • Patent number: 10121425
    Abstract: An adaptive black clipping circuit in a display device includes a data corrector, a register, a pattern detector and a clipping selector. The data corrects input image data to generate corrected image data such that the corrected image data is equal to or greater than a black clipping value where the black clipping value corresponds to the input image data having a grayscale value of zero and the black clipping value is greater than zero. The register stores and provides configuration data. The pattern detector generates a pattern detection signal based on the input image data corresponding to a plurality of rows. The clipping selector selects one of the corrected image data and the configuration data in response to the pattern detection signal to provide output image data.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: November 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ik-Hyun Ahn, Yoon-Gu Kim, Woo-Joo Lee, Bong-Im Park
  • Publication number: 20180293935
    Abstract: Provided is a display device including a display panel, a power delivery network (PDN), an image controller, and a PDN controller. The display panel may include a plurality of sub-panels. The PDN may be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal. The image controller may receive to store frame image data, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data. The PDN controller may generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and may provide the generated size adjusting signal to the image controller. The size adjusting signal may adjust the window size.
    Type: Application
    Filed: January 25, 2017
    Publication date: October 11, 2018
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Woo Joo LEE, Suk Ho LEE, Kyung Jin BYUN, Nak Woong EUM
  • Patent number: 9959798
    Abstract: A display panel driving apparatus includes a data processing circuit, a data driver, and a gate driver. The data processing circuit increases a first gamma value of input image data of which the gamma value is 0, according to a second gamma value of the input image data of which the second gamma value is not 0. The data driving part outputs a data signal based on the output image data to a data line. The gate driving part outputs a gate signal to a gate line.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: May 1, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yoon-Gu Kim, Bong-Im Park, Ik-Hyun Ahn, Hyun-sik Hwang, Woo-Joo Lee, Jin-Young Lee
  • Publication number: 20160196799
    Abstract: A display device includes a display unit including a plurality of pixels, a plurality of gate lines and a plurality of data lines which are connected to the plurality of pixels, a data driver applying data voltages to the plurality of data lines, and a gate driver delaying and outputting first gate signals applied to gate lines among the plurality of gate lines in a first sub-frame included in one frame and advancing and outputting second gate signals which are applied to remaining gate lines among the plurality of gate lines in a second sub-frame.
    Type: Application
    Filed: September 14, 2015
    Publication date: July 7, 2016
    Inventors: Ik Hyun AHN, Woo Joo LEE, Hyun Sik HWANG, Bong Im PARK
  • Publication number: 20160180816
    Abstract: A liquid crystal display has a first transistor, a first capacitor, a second transistor, a liquid crystal element, and a third transistor. A controller may be configured to alternately, based on a period of a horizontal signal, apply a common voltage through a common voltage line at a high level and a low level.
    Type: Application
    Filed: May 13, 2015
    Publication date: June 23, 2016
    Inventors: Hyun Sik HWANG, Bong Im Park, Ik Hyun Ahn, Woo Joo Lee
  • Publication number: 20160118001
    Abstract: An adaptive black clipping circuit in a display device includes a data corrector, a register, a pattern detector and a clipping selector. The data corrects input image data to generate corrected image data such that the corrected image data is equal to or greater than a black clipping value where the black clipping value corresponds to the input image data having a grayscale value of zero and the black clipping value is greater than zero. The register stores and provides configuration data. The pattern detector generates a pattern detection signal based on the input image data corresponding to a plurality of rows. The clipping selector selects one of the corrected image data and the configuration data in response to the pattern detection signal to provide output image data.
    Type: Application
    Filed: August 13, 2015
    Publication date: April 28, 2016
    Inventors: Ik-Hyun AHN, Yoon-Gu KIM, Woo-Joo LEE, Bong-Im PARK
  • Publication number: 20150046152
    Abstract: A method for generating a set of concept blocks is presented, wherein the concept blocks are words in a corpus of documents that can be processed to extract trends, build an efficient inverted search index, or generate a summary report of the content. The method entails generating a plurality of target words from the corpus, determining context strings for the target words, obtaining pattern types that are based on number of words and position of words relative to the target words, and assigning weights to each of the context strings having a particular pattern type. The target words are then expressed as vectors that reflect the weights of the context strings. The vectors are compared and grouped into clusters based on similarity. Target words in the resulting clusters are concept blocks. A subgroup of clusters may be selected for another iteration of the process to catch new concept blocks.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 12, 2015
    Inventor: Woo Joo LEE
  • Publication number: 20050010814
    Abstract: System for preventing and delaying distribution of computer viruses through electronic mails, includes a virus checking module and a curing inducement module for inducing a virus transmitting client. In system and method of this invention, an IP address of the virus transmitting client is stored as an infected IP address and a predetermined blocking time is imposed to the infected IP address. Until the blocking time has passed, normal messages having no virus from the infected IP address are not allowed to be processed.
    Type: Application
    Filed: October 1, 2002
    Publication date: January 13, 2005
    Inventors: Sung-Yeop Lim, Woo-joo Lee
  • Publication number: 20030069933
    Abstract: A connection request from a remote host is denied by an e-mail service system, if the number of connection request from the remote host exceeds a predetermined reference number, and the responsibility to re-send the denied e-mail is transferred to the requesting host. For the determination of connection permission or denial, the number of connection requests from the remote host is calculated with reference to corresponding to an IP address. By the IP filtering scheme, traffic of the e-mail service system can be effectively managed and controlled.
    Type: Application
    Filed: July 12, 2002
    Publication date: April 10, 2003
    Inventors: Sung-Yeop Lim, Woo-Joo Lee