Patents by Inventor Hwan JI

Hwan JI 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: 20130191393
    Abstract: The disclosure relates to an emotional matching system and a matching method for linking ideal mates by finding optimal ideal mates by identifying the level of attraction to the appearance of the other member and tendencies toward music, movies, and food through an emotional-based approach using brainwave changes.
    Type: Application
    Filed: September 29, 2011
    Publication date: July 25, 2013
    Applicant: BAROYEON CO., LTD
    Inventor: Chang Hwan Ji
  • Patent number: 8317015
    Abstract: A locking apparatus for locking a magazine configured to receive a printed circuit board (PCB) may include an actuator, a rotating block, and a locking member. The actuator may be installed on the magazine. The rotating block may be connected to the actuator. The rotating block may be rotated about a vertical axis. The locking member may be rotatably connected to the magazine about the vertical axis. The locking member may be selectively combined with the rotating block to block a front face of the magazine, thereby preventing breakaway of the PCB from the magazine.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: November 27, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hwan Ji, Jong-Hoon Kim, Hee-Sang Yang, Jae-Nam Lee, Jong-Chul Kim
  • Publication number: 20120256936
    Abstract: The organic light emitting display may include a plurality of pixels for generating light components with predetermined brightness components while controlling the amount of current that flows from a first power source to a second power source via organic light emitting diodes (OLED), a first power source controller for extracting data of the highest gray level among input data items of one frame and for outputting a control value having voltage information corresponding to the highest gray level data, and a first power source generator for generating a controlled voltage value corresponding to the control value and outputting the controlled voltage value to the first power source.
    Type: Application
    Filed: September 23, 2011
    Publication date: October 11, 2012
    Inventors: Baek-Woon LEE, In-Hwan JI
  • Publication number: 20120007848
    Abstract: An organic light emitting display includes a display unit including pixels coupled to scan lines, first control lines, second control lines, and data lines, a control line driver configured to supply a first control signal and a second control signal to the pixels through the first control lines and the second control lines, a first power source driver for applying a first power to the pixels of the display unit, and a second power source driver for applying a second power to the pixels of the display unit. At least one of the first power or the second power is applied to the pixels of the display unit as voltage values having different levels during one frame. The first and second control signals and the first and second powers are concurrently provided to all of the pixels of the display unit.
    Type: Application
    Filed: November 3, 2010
    Publication date: January 12, 2012
    Inventors: Sang-Myeon Han, Baek-Woon Lee, Si-Duk Sung, In-Hwan Ji
  • Publication number: 20110316892
    Abstract: An organic light emitting diode display includes: a display unit including: a plurality of scan lines; a plurality of light emission control lines; a plurality of data lines; and a plurality of pixels, each of the pixels being coupled to a corresponding scan line among the scan lines, a corresponding light emission control line among the light emission control lines, and a corresponding data line among the data lines; a scan driver configured to transmit a plurality of scan signals to the scan lines; a light emission driver configured to transmit a plurality of light emission control signals to the light emission control lines; a data driver configured to transmit a plurality of data signals to the data lines; and a power source driver configured to apply a plurality of power source voltages having different levels to the pixels during one frame period.
    Type: Application
    Filed: March 30, 2011
    Publication date: December 29, 2011
    Inventors: Si-Duk Sung, Baek-Woon Lee, In-Hwan Ji, Sang-Myeon Han
  • Publication number: 20110267329
    Abstract: An organic light-emitting display device that increases long range uniformity (LRU). The organic light-emitting display device includes an image display unit including a plurality of pixels defined by a plurality of scan lines and a plurality of data lines, a plurality of film type connection devices electrically connected to the image display unit and at least one DC-DC converter arranged on the plurality of film type connection devices to supply driving voltages to the image display unit.
    Type: Application
    Filed: December 29, 2010
    Publication date: November 3, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Si-Duk Sung, In-Hwan Ji
  • Patent number: 7957260
    Abstract: Disclosed herein are a WiMAX system analyzer having an RAS emulation function and a method of acquiring UL synchronization and testing a PSS. The WiMAX system analyzer includes a clock counter, a D/A conversion unit, an A/D conversion unit, an RF processing unit, switching means, a signal generation unit, a signal analysis unit, and control means. The clock counter creates a frame number. The D/A conversion unit converts a DL sub-frame into an analog signal. The A/D conversion unit converts a UL sub-frame signal into digital data. The RF processing unit RF-modulates the DL sub-frame, outputs the modulated DL sub-frame, and demodulating a modulated UL sub-frame. The switching means connects the RF processing unit to the D/A conversion unit or the A/D conversion unit. The signal generation unit assigns a CID, and creating a DL sub-frame. The signal analysis unit decodes the UL sub-frame, and conducts various analyses.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: June 7, 2011
    Assignee: Innowireless Co., Ltd.
    Inventors: Jinsoup Joung, Kyeong Min Ha, Seung Hwan Ji, Jun Wan Park, Cheol Jin Lee
  • Publication number: 20110113456
    Abstract: A method for providing a digital broadcasting service and a streaming service in a portable terminal is provided. The method include receiving a request for moving a play position of broadcast content provided via the digital broadcasting service, determining whether streaming content corresponding to the broadcast content is available, the streaming content being provided in the streaming service, and playing the streaming content from the moved play position in a streaming fashion.
    Type: Application
    Filed: November 12, 2010
    Publication date: May 12, 2011
    Applicant: Samsung Electronics Co. Ltd.
    Inventors: Dong-Hwan JI, Jeong-Wook SEO, Bryan KIM, Eun-Jung SEO
  • Publication number: 20110042242
    Abstract: A locking apparatus for locking a magazine configured to receive a printed circuit board (PCB) may include an actuator, a rotating block, and a locking member. The actuator may be installed on the magazine. The rotating block may be connected to the actuator. The rotating block may be rotated about a vertical axis. The locking member may be rotatably connected to the magazine about the vertical axis. The locking member may be selectively combined with the rotating block to block a front face of the magazine, thereby preventing breakaway of the PCB from the magazine.
    Type: Application
    Filed: June 28, 2010
    Publication date: February 24, 2011
    Inventors: Chang-Hwan Ji, Jong-Hoon Kim, Hee-Sang Yang, Jae-Nam Lee, Jong-Chul Kim
  • Patent number: 7835704
    Abstract: Disclosed herein is a method for generating a test signal for testing the accuracy of the CINR measurement of a subscriber station. The method includes step (a) of checking a preamble code corresponding to a predetermined cell ID, reading corresponding preamble data from a preamble code table, and taking it as desired preamble data, step (b) of completing generation of desired signal data by generating desired pilot data and various information data, step (c) of randomly selecting one preamble code from among preamble codes corresponding to cell IDs other than the cell ID, reading corresponding preamble data from the preamble code table, and taking the preamble data as interference preamble data, step (d) of generating interference pilot data, and step (e) of generating test signal data by adding the interference preamble data and the interference pilot data to the desired signal data.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: November 16, 2010
    Assignee: Innowireless Co., Ltd.
    Inventors: Jinsoup Joung, Kyeong Min Ha, Seung Hwan Ji, Jun Wan Park, Jae Sung Lee
  • Publication number: 20090272518
    Abstract: Disclosed is a cooling and heating air conditioner capable of performing heating more stably, preventing frost formation on coils of an outdoor unit even at subzero temperature in winter by using first and second heat exchangers and an auxiliary expansion valve. The air conditioner according to the present invention comprises an electronic control valve opened when the outside temperature is less than a preset value, a first heat exchanger performing heat exchange between high temperature liquid coolant and coolant passed through the outdoor unit and an auxiliary expansion valve, and a second heat exchanger disposed in front of the outdoor unit to induct thereinto the high temperature coolant. Since the second heat exchanger heats up the outside air through heat exchange before supplying the air to the outdoor unit, evaporation of the coolant can be stably performed in the outdoor unit, while preventing frost formation. Accordingly, heating can be performed constantly.
    Type: Application
    Filed: May 10, 2007
    Publication date: November 5, 2009
    Inventors: Chang Duk Jeon, Dai Hee Lee, Kyeong Min Lee, Doo Hwan Ji, Hong Keun Chae
  • Publication number: 20080117887
    Abstract: Disclosed herein are a WiMAX system analyzer having an RAS emulation function and a method of acquiring UL synchronization and testing a PSS. The WiMAX system analyzer includes a clock counter, a D/A conversion unit, an A/D conversion unit, an RF processing unit, switching means, a signal generation unit, a signal analysis unit, and control means. The clock counter creates a frame number. The D/A conversion unit converts a DL sub-frame into an analog signal. The A/D conversion unit converts a UL sub-frame signal into digital data. The RF processing unit RF-modulates the DL sub-frame, outputs the modulated DL sub-frame, and demodulating a modulated UL sub-frame. The switching means connects the RF processing unit to the D/A conversion unit or the A/D conversion unit. The signal generation unit assigns a CID, and creating a DL sub-frame. The signal analysis unit decodes the UL sub-frame, and conducts various analyses.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 22, 2008
    Applicant: INNOWIRELESS CO., LTD.
    Inventors: Jinsoup Joung, Kyeong Min Ha, Seung Hwan Ji, Jun Wan Park, Cheol Jin Lee
  • Patent number: 6644621
    Abstract: The present invention relates to an ABS solenoid valve. The ABS solenoid valve comprises: a housing coupled within a modulator block; a receiving unit disposed within the housing; a plunger mounted on the receiving unit and having a projection in one end; a compressive spring coupled with the plunger adjacent to the projection; a valve seat supported by the compressive spring and received within the housing; a coupling channel disposed within the valve seat; an orifice communicating with the coupling channel of the valve seat and coupling with a side of the housing; a flow path disposed within the orifice; a channel pipe communicating with the flow path, a flow groove disposed in an outer periphery of the valve seat; and a discharge port disposed in the housing and the orifice and communicating with the flow groove of the valve seat. The channel grooves are disposed in the outer periphery of the valve seat to simplify a fabricating process.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: November 11, 2003
    Assignee: Hyundai Mobis, Co., Ltd.
    Inventors: Su-Hwan Ji, Dong-Ho Ahn
  • Publication number: 20030183790
    Abstract: The present invention relates to an ABS solenoid valve. The ABS solenoid valve comprises: a housing coupled within a modulator block; a receiving unit disposed within the housing; a plunger mounted on the receiving unit and having a projection in one end; a compressive spring coupled with the plunger adjacent to the projection; a valve seat supported by the compressive spring and received within the housing; a coupling channel disposed within the valve seat; an orifice communicating with the coupling channel of the valve seat and coupling with a side of the housing; a flow path disposed within the orifice; a channel pipe communicating with the flow path, a flow groove disposed in an outer periphery of the valve seat; and a discharge port disposed in the housing and the orifice and communicating with the flow groove of the valve seat. The channel grooves are disposed in the outer periphery of the valve seat to simplify a fabricating process.
    Type: Application
    Filed: December 19, 2002
    Publication date: October 2, 2003
    Applicant: HYUNDAI MOBIS, CO., LTD.
    Inventors: Su-Hwan Ji, Dong-Ho Ahn
  • Patent number: 6584085
    Abstract: An apparatus for and a method of allocating D-channel to minimum channel when performing a basic rate interface (BRI) in WLL, in which D-channel is allocated to the minimum channel when connection is made to V5.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: June 24, 2003
    Assignee: Hyundai Curitel, Inc.
    Inventor: Chang-Hwan Ji
  • Patent number: 6411271
    Abstract: A liquid crystal display including many speakers within a stand and having a display unit, a display angle of which can be adjusted by a cam in order that a user can conveniently see it. The stand supports the display unit through a support and has an inclined part between a front part and a rear part. In addition, a speaker for outputting a high-pitched sound is installed within the front part of the stand and speakers for outputting a middle-low pitched sound are installed within the both sides of the stand. The support is rotatably connected to the display unit and the stand by a driving of the cam and contacted with the cam provided to toe inclined part of the stand and the angle of the support is adjusted by a rotation of the cam and so an angle of the display unit is adjusted.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: June 25, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Il-Soon Bang, Byeong-Yong Song, Joo-Hwan Ji
  • Patent number: 5272554
    Abstract: A liquid crystal light valve (LCLV) adapted to a large scale image projecting apparatus or an optical data processing apparatus is disclosed wherein the sectional structure is improved. The LCLV comprises a substrate, an amorphous silicon photoconductor layer formed on the substrate, a light absorbing layer and a dielectric reflection layer formed on the photoconductor layer, wherein the light absorbing layer is made up of a Si/SiO.sub.2 multilayer and the dielectric reflection layer is made up of TiO.sub.2 /SiO.sub.2. Here, the Si/SiO.sub.2 and TiO.sub.2 /SiO multilayers are integrally combined, so that the TiO.sub.2 /SiO.sub.2 multilayer is used as a dielectric mirror and the Si/SiO.sub.2 multilayer is used as a dielectric mirror and a light absorbing layer. A p-type amorphous silicon layer together with boron and hydrogen can be used as the light absorbing layer and a TiO.sub.2 /SiO.sub.2 multilayer may be used as a dielectric mirror.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: December 21, 1993
    Assignee: Samsung Electronics Co. Ltd.
    Inventors: Il-hwan Ji, Seok-bum Ma