Patents by Inventor Dong Hwal Lee

Dong Hwal 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).

  • Publication number: 20170019693
    Abstract: Provided is a method of providing a broadcasting service and playing a broadcast by using an object state transmitting method, in which a data capacity of a video may be remarkably reduced to transmit a broadcasting image and image data of the broadcasting image may be received and played. Accordingly, according to the method of providing a broadcasting service and playing a broadcast by using an object state transmitting method, a broadcasting image having a small data capacity may be transmitted, received and provided at a high image quality at the same time.
    Type: Application
    Filed: July 14, 2016
    Publication date: January 19, 2017
    Applicant: MINKONET CORPORATION
    Inventors: Tae Woo Kim, Dong Hwal Lee, Won Gil Ryim
  • Publication number: 20160182956
    Abstract: It is distinguished that, to achieve the purpose above, the game video recommendation service in this invention is provided through the following phases in presenting the service of recommending to a game user another user's' game video: (a) the phase where, based on the object information including 3D shape information of the characters, props and backgrounds constituting game videos, the script information is saved in the video server for form a video list for game play video rendering, which records data on the appearance and disappearance points of time of characters, props and backgrounds included in the above-mentioned object information as well as their movements according to time; (b) the phase where users' in-game failures are detected and sent by the above game device the server; (c) the phase where the video lists saved in the said server are searched and videos (failure videos) including the fore-said failure situations or success videos resolving such situations are extracted; (d) the phase where
    Type: Application
    Filed: February 6, 2015
    Publication date: June 23, 2016
    Applicant: Minkonet Corporation
    Inventors: Taewoo KIM, Dong Hwal LEE
  • Patent number: 8187769
    Abstract: Provided are a supported catalyst for a fuel cell, a method of preparing the same, an electrode for a fuel cell including the supported catalyst, a membrane electrode assembly including the electrode, and a fuel cell including the membrane electrode assembly. Specifically, the supported catalyst for a fuel cell has a layered structure obtained by sequentially depositing a carbonaceous support, metal oxide particles, and catalyst metal. The supported catalyst has excellent electrical activity, excellent durability, and can be easily mass-produced at low cost. The membrane electrode assembly including the supported catalyst and a fuel cell including the membrane electrode assembly each show excellent output density and high performance.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: May 29, 2012
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Dong Woong Choi, Dong Hwal Lee, Dong II Kim
  • Publication number: 20100253893
    Abstract: A display filter for a Liquid Crystal Display (LCD) having an anti-fog function includes a transparent support arranged in front of the display module and an anti-fog layer stacked in the rear of the transparent support to face the display module. The anti-fog layer prevents the display filter from fogging up.
    Type: Application
    Filed: March 24, 2010
    Publication date: October 7, 2010
    Inventors: Dong Keun SHIN, Dae Chul Park, Shin Wook Kim, Dong Hyun Park, Dong Hwal Lee
  • Patent number: 7764574
    Abstract: Provided is a method for controlling a positioning system using ultrasonic waves. The method installs a plurality of ultrasonic satellites generating ultrasonic signals to position a mobile. The method sequentially gives satellite identification numbers to the plurality of ultrasonic satellites, generates a synchronization signal, provides it to the plurality of ultrasonic satellites, and allows the mobile to receive ultrasonic signals, which are generated by the plurality of ultrasonic satellites in the order of the satellite identification numbers when the ultrasonic satellites receive the synchronization signal, to measure distances between the mobile and the ultrasonic satellites.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: July 27, 2010
    Assignee: KT Corporation
    Inventor: Dong Hwal Lee
  • Patent number: 7668045
    Abstract: The present application discloses a method of and an apparatus for measuring a distance using an ultrasonic wave. The method of measuring a distance using an ultrasonic wave includes the steps of receiving through an ultrasonic sensor a signal from an ultrasonic transmitter; amplifying the received signal; filtering a high-frequency component from the amplified signal, thereby generating a filtered signal; generating an output signal when the filtered signal satisfies a predetermined condition; and computing a distance based on a period of the output signal.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: February 23, 2010
    Assignees: KT Corporation
    Inventor: Dong Hwal Lee
  • Publication number: 20100013799
    Abstract: A touch input detecting display filter includes a layered body and a vibration detector. The layered body includes a base substrate disposed in front of a display panel, and an optical filter part having an anti-reflecting film layered on the base substrate. The vibration detector is disposed on the layered body. When an object gets in touch with the layered body, the vibration detector detects vibration generated from a touch location of the layered body.
    Type: Application
    Filed: July 15, 2009
    Publication date: January 21, 2010
    Applicant: SAMSUNG CORNING PRECISION GLASS CO., LTD.
    Inventors: Shin Wook Kim, Dae Chul Park, Gi Mo Yang, Youn Ok Choi, Dong Keun Shin, Dong Hwal Lee
  • Publication number: 20090058250
    Abstract: A filter for a display apparatus is placed in front of a display panel, wherein CIE chromaticity coordinates of the filter under a standard of a D65 light source have values of ?2.0?a*?2.0 and ?2.0?b*?2.0. The CIE chromaticity coordinates of the filter under the standard of the D65 light source have a value of 60?L*?80. The colorants include a first colorant absorbing 380 nm to 480 nm wavelength light, a second colorant absorbing 450 nm to 550 nm wavelength light, and a third colorant absorbing 560 nm to 620 nm wavelength light. The first to third colorants can be contained in at least one of a color compensating layer, a low-refraction layer having a refractive index of 1.5 or less, an external light shielding layer, a hard coating layer and an adhesive layer.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 5, 2009
    Applicant: Samsung Corning Precision Glass Co., Ltd.
    Inventors: Dong-Keun Sin, Ji-Yoon Seo, Sung-Nim Jo, Ji-Young Kim, Mi-Young Lim, Kyeong-Keun Woo, Dae-Chul Park, Sang-Yoon Oh, Kun-Yong Jang, Hwa-Yeon Lee, Moon-Jin Choi, Shin-Wook Kim, Seok-Won Kim, Dong-Hwal Lee
  • Publication number: 20090042089
    Abstract: Provided are a supported catalyst for a fuel cell, a method of preparing the same, an electrode for a fuel cell including the supported catalyst, a membrane electrode assembly including the electrode, and a fuel cell including the membrane electrode assembly. Specifically, the supported catalyst for a fuel cell has a layered structure obtained by sequentially depositing a carbonaceous support, metal oxide particles, and catalyst metal. The supported catalyst has excellent electrical activity, excellent durability, and can be easily mass-produced at low cost. The membrane electrode assembly including the supported catalyst and a fuel cell including the membrane electrode assembly each show excellent output density and high performance.
    Type: Application
    Filed: July 24, 2007
    Publication date: February 12, 2009
    Inventors: Dong Woong Choi, Dong Hwal Lee, Dong Il Kim
  • Publication number: 20090016165
    Abstract: Provided are a positioning system using ultrasonic waves and a method for controlling the positioning system. The method for controlling a positioning system installs a plurality of ultrasonic satellites generating ultrasonic signals to position a mobile. The method sequentially gives satellite identification numbers to the plurality of ultrasonic satellites, generates a synchronization signal and providing it to the plurality of ultrasonic satellites, and allows the mobile to receive ultrasonic signals, which are generated by the plurality of ultrasonic satellites in the order of the satellite identification numbers when the ultrasonic satellites receive the synchronization signal, to measure distances between the mobile and the ultrasonic satellites.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 15, 2009
    Applicant: KT CORPORATION
    Inventor: Dong Hwal LEE
  • Publication number: 20080192573
    Abstract: The present invention provides a method of and an apparatus for measuring a distance using an ultrasonic wave. The method comprises steps of receiving through an ultrasonic sensor a signal generated from an ultrasonic transmitter according to a signal of ultrasonic transmission time, amplifying the received signal, filtering a high-frequency wave from the amplified signal, outputting only a signal corresponding to a predetermined signal size from the signal in which the high-frequency wave is filtered, and computing a distance value by calculating the period of the output signal.
    Type: Application
    Filed: January 18, 2005
    Publication date: August 14, 2008
    Inventors: Heui Tay An, Dong Hwal Lee
  • Patent number: 7406000
    Abstract: Provided is a method for controlling a positioning system using ultrasonic waves. The method installs a plurality of ultrasonic satellites generating ultrasonic signals to position a mobile. The method sequentially gives satellite identification numbers to the plurality of ultrasonic satellites, generates a synchronization signal and providing it to the plurality of ultrasonic satellites, and allows the mobile to receive ultrasonic signals, which are generated by the plurality of ultrasonic satellites in the order of the satellite identification numbers when the ultrasonic satellites receive the synchronization signal, to measure distances between the mobile and the ultrasonic satellites.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: July 29, 2008
    Assignee: KT Corporation
    Inventor: Dong Hwal Lee
  • Publication number: 20020025084
    Abstract: An enlarged digital image providing method and apparatus using data communication networks for effectively transmitting and displaying enlarged digital images via Internet, Intranet and mobile communication networks, wherein the method comprises the steps of: creating an original digital image document; serially creating at least one reduced image document having a resolution lower than the original digital image document based on the original digital image document; divisibly storing the reduced image documents and the original digital image document into a multiplicity of segmental image documents; receiving a request when a client designates a specific domain of a display image for enlarged display of the domain; and transmitting from server side to client side at least one segmental image document necessary for constructing an image of requested enlarged domain to prompt the transmitted segmental image document to be combined for implementation of displayed image.
    Type: Application
    Filed: August 13, 2001
    Publication date: February 28, 2002
    Inventors: Yun-Won Yang, Dong-Hwal Lee