Patents by Inventor Yong Chang

Yong Chang 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).

  • CONTROL DEVICE AND CONTROL METHOD THEREOF
    Publication number: 20090320024
    Abstract: A control device for displaying a menu generated based on the media included in the devices within a home network. The control device includes a media information collection unit which collects information on media that can be processed by devices within a home network, a control unit which generates a task list for tasks that can be performed based on the collected information, and a display unit which displays the generated task list. A user thereby may control the devices within a home network using the menu generated based on the media included in the devices, making it possible to improve convenience to the user.
    Type: Application
    Filed: February 4, 2009
    Publication date: December 24, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ju-il EOM, Seung-dong YU, Woo-yong CHANG, Dae-hyun KIM, Eun-hee PARK, Chang-hwan HWANG
  • PHASE CHANGE MEMORY DEVICE HAVING A WORD LINE CONTACT AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20090302299
    Abstract: A phase change memory device having a word line contact includes an N+ base layer formed in a surface of a semiconductor substrate. A word line is formed over the N+ base layer. The word line contact is formed to connect the N+ base layer to the word line. The word line contact includes a first contact plug, a barrier layer formed on the first contact plug, and a second contact plug formed on the barrier layer coaxially with the first contact plug. The barrier layer prevents unwanted etching of the first contact plug when the second contact plug is being formed.
    Type: Application
    Filed: July 15, 2008
    Publication date: December 10, 2009
    Inventor: Heon Yong CHANG
  • PHASE CHANGE MEMORY DEVICE HAVING DECREASED CONTACT RESISTANCE OF HEATER AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20090302300
    Abstract: A phase change memory device includes a silicon substrate having cell and peripheral regions. A first insulation layer with a plurality of holes is formed in the cell region. Recessed cell switching elements are formed in the holes. Heat sinks are formed in the holes in which the cell switching elements are formed, and the heat sinks project out of the first insulation layer. A gate is formed in the peripheral region and has a stack structure of a gate insulation layer, a first gate conductive layer, a second gate conductive layer, and a hard mask layer. A second insulation layer is formed on the surface of the silicon substrate. The second insulation layer has contact holes exposing the heat sinks. Heaters are formed in the contact holes, and stack patterns of a phase change layer and a top electrode are formed on the heaters.
    Type: Application
    Filed: July 15, 2008
    Publication date: December 10, 2009
    Inventor: Heon Yong CHANG
  • CONTROL DEVICE AND METHOD FOR PROVIDING USER INTERFACE (UI) THEREOF
    Publication number: 20090300620
    Abstract: A control device which displays menus generated based on tasks is provided. The control device includes an input unit which receives a user command for performing a task, and a control unit which, if a task to be performed is selected via the input unit, generates a menu list showing menus for each of a plurality of apparatuses available to perform the selected task. Therefore, it is possible for a user to conveniently perform a desired task.
    Type: Application
    Filed: February 18, 2009
    Publication date: December 3, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun-hee PARK, Seung-dong YU, Woo-yong CHANG, Ju-il EOM, Chang-hwan HWANG
  • CONTROL DEVICE AND METHOD THEREOF
    Publication number: 20090299541
    Abstract: A control device which controls the power of a plurality of apparatuses in a home network, and a method thereof are provided. The control device includes an input unit which receives a power off command, and a control unit which concurrently turns off apparatuses which are currently turned on among the plurality of apparatuses in response to the power off command received by the input unit. Therefore, it is possible for a user to concurrently turn off currently running apparatuses so user convenience can increase.
    Type: Application
    Filed: November 11, 2008
    Publication date: December 3, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun-hee PARK, Seung-dong YU, Woo-yong CHANG, Ju-il EOM, Chang-hwan HWANG
  • Method and system for transmitting and receiving broadcast service data in a wireless communication system
    Patent number: 7616593
    Abstract: A method and system are provided for transmitting broadcast service data in a wireless communication system using an Orthogonal Frequency Division Multiple Access (OFDMA) scheme in which data transmission is achieved through a downlink and an uplink within one frame. The system being connected to a broadcast server. The system and method include allocating a connection identifier (CID) to each broadcast service for identification of a broadcast service packet transmitted over the downlink, and transmitting broadcast service information for each broadcast service; and receiving a broadcast packet from the broadcast server, and transmitting a physical layer transmission information element (DL-MAP) including a broadcast service CID for the broadcast packet through the downlink0.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: November 10, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Soo Jung, Yu-Chul Kim, Dae-Gyun Kim, Beom-Sik Bae, Yong Chang, Geun-Hwi Lim, Jung-Je Son
  • PHASE CHANGE MEMORY DEVICE HAVING HEATERS AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20090267045
    Abstract: A phase change memory device includes switching elements formed on a substrate that includes a cell region and a peripheral region. Heat sinks are formed on the switching elements. Heaters are formed on the heat sink and a phase change layer is formed on the heaters.
    Type: Application
    Filed: September 16, 2008
    Publication date: October 29, 2009
    Inventors: Heon Yong CHANG, Hong Sun KIM
  • METHOD FOR MANUFACTURING PHASE CHANGE MEMORY DEVICE
    Publication number: 20090269928
    Abstract: A method for manufacturing a phase change memory device that prevents or minimizes adverse performance characteristics associated with inadequate overlap between top electrode contacts and top electrodes. The method prevents or minimizes unwanted chemical changes and etch losses of the phase change material when building the top electrode. The method includes forming spacers on sidewalls of remaining portions of the insulation layer and the hard masks so that subsequent etching of the conductive layer and the phase change material layer uses the spacers and the hard masks as an etch mask to form top electrodes and a phase change layer. Accordingly, the method promises to provide a way of achieving a high level of integration for the resultant phase change memory devices.
    Type: Application
    Filed: September 16, 2008
    Publication date: October 29, 2009
    Inventor: Heon Yong CHANG
  • PHASE CHANGE MEMORY DEVICE RESISTANT TO STACK PATTERN COLLAPSE AND A METHOD FOR MANUFACTURING THE SAME
    Publication number: 20090267043
    Abstract: A phase change memory device resistant to stack pattern collapse is presented. The phase change memory device includes a silicon substrate, switching elements, heaters, stack patterns, bit lines and word lines. The silicon substrate has a plurality of active areas. The switching elements are connected to the active areas. The heaters are connected to the switching elements. The stack patterns are connected to the heaters. The bit lines are connected to the stack patterns. The word lines are connected to the active areas of the silicon substrate.
    Type: Application
    Filed: July 16, 2008
    Publication date: October 29, 2009
    Inventor: Heon Yong CHANG
  • PHASE CHANGE MEMORY DEVICE HAVING A BENT HEATER AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20090267044
    Abstract: A phase change memory device includes heaters which are formed in their respective memory cells and vertically positioned stack patterns having phase change layers and top electrodes which are formed to come into contact with the heaters. The heaters have horizontal cross-sectional bent shapes which can have any number of shapes such as a shape similar to that of a boomerang. The horizontal cross-sectional bent shapes of the heaters are for minimizing the contact area between the heaters and the phase change layer so that programming currents can be reduced or minimized.
    Type: Application
    Filed: July 16, 2008
    Publication date: October 29, 2009
    Inventor: Heon Yong CHANG
  • Phase change memory device in which a distance between a lower electrode and a ground line is increased to secure the sensing margin of a cell and method for manufacturing the same
    Patent number: 7608850
    Abstract: A phase change memory device includes a semiconductor substrate having active regions and an isolation structure; gate lines extending in a direction perpendicular to the active regions; a source region and a drain region formed in a surface of each active region; a dot type lower electrode including a first contact plug formed in the drain region; second contact plugs formed in the source region and the isolation structure forming a line parallel to the gate line; a lower electrode contact formed on the lower electrode; a phase change layer and an upper electrode formed on the lower electrode contact; an upper electrode contact formed on the upper electrode; contacts for ground lines, formed between the active regions to come into contact with the second contact plugs; a bit line formed in the active region; and ground lines formed between the active regions.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: October 27, 2009
    Assignee: Hynix Semiconductor Inc.
    Inventor: Heon Yong Chang
  • SYSTEM FOR HANDOVER IN BWA COMMUNICATION SYSTEM AND METHOD THEREOF
    Publication number: 20090262705
    Abstract: A handover method and system in a communication system. In the method, a serving Base Station (BS) broadcasts neighbor BS information including BS identifiers and preamble indices of a plurality of neighbor BSs, receives a handover request message from a Mobile Station (MS), the handover request message including a first set of at least one BS identifier and at least one preamble index for at least one neighbor BS among the plurality of neighbor BSs, and transmits a handover response message to the MS, the handover response message including a second set of at least one BS identifier and at least one preamble index for at least one recommended neighbor BS.
    Type: Application
    Filed: June 29, 2009
    Publication date: October 22, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-Won KIM, Tae-Won KIM, Bo-Kyung WANG, Yong CHANG, Hong-Sung CHANG
  • Efficient rate control techniques for video encoding
    Patent number: 7606427
    Abstract: This disclosure describes rate control techniques that can improve video encoding. In particular, the described rate control techniques exploit relationships between the number of bits encoded per frame and the number of non-zero coefficients of the video blocks after quantization. The number of number of non-zero coefficients of the video blocks after quantization is referred to as rho (?). The value of ? is generally proportional to the number of bits used in the video encoding. This disclosure utilizes a relationship between ? and a quantization parameter (QP) in order to achieve rate controlled video encoding. More specifically, this disclosure provides techniques for generating a lookup table (LUT) that maps values of ? to different QPs.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: October 20, 2009
    Assignee: QUALCOMM Incorporated
    Inventors: Narendranath Malayath, Stephen Molloy, Yong Chang
  • Method and system for handoff between base stations supporting multi-profile operation in BWA system
    Patent number: 7603121
    Abstract: Disclosed is a method for performing handoff by a Mobile Station (MS) in a Broadband Wireless Access (BWA) communication system including a serving Base Station (BS) and at least one neighbor BS adjacent to the serving BS, the serving BS currently providing a service to the MS. The method including receiving physical layer information for communication from said at least one neighbor BS by the serving BS; combining by the serving BS the received physical layer information of said at least one neighbor BS, inserting the physical layer information into an advertisement message, and transmitting the advertisement message to the MS; and receiving by the MS the advertisement message, and performing a handoff according to the physical layer information of said at least one neighbor BS included in the advertisement message when the handoff occurs.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: October 13, 2009
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jun-Hyung Kim, Geun-Hwi Lim, Jung-Won Kim, Hong-Sung Chang, Yong Chang, Joon-Ho Park
  • protein composition
    Patent number: 7601358
    Abstract: Mycobacterium tuberculosis proteins and protein compositions that are components of a desaturase complex are provided. The Mycobacterium tuberculosis desaturase complex may include a desaturase and an oxidoreductase. The complex may include the rv3229c and rv3230c gene products of Mycobacterium tuberculosis. Vectors for expressing the desaturase and the oxidoreductase can be packaged together, including a label that indicates their use as a complex for analyzing desaturation of fatty acids. In addition, methods for screening target ligands specific for a desaturase complex are also provided.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: October 13, 2009
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Brian G. Fox, Yong Chang
  • ARTIFICIAL NAIL/TIP ARRANGEMENTS HAVING MULTIPLE SECTIONS
    Publication number: 20090241976
    Abstract: Exemplary arrangements, systems and methods for providing artificial nail or tip arrangements having multiple sections are provided. The exemplary arrangement may include a first section having a first top surface and a first bottom surface, and a second section being adjacent to the first section having a second top surface and a second bottom surface. The first and second sections may form a combined arrangement which has a proximal end and a distal end. At least one portion of the first bottom surface may overlay the second top surface such that the portion of the second top surface overlaid by the first bottom surface forms an acute angle with respect to the first top surface at a contact point with the second top surface.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 1, 2009
    Applicant: KMC Exim Corp.
    Inventor: Sung Yong Chang
  • USER INPUT APPARATUS FOR CONTROLLING IMAGE DISPLAY DEVICE AND METHOD OF CONTROLLING THE IMAGE DISPLAY DEVICE BY USING THE USER INPUT APPARATUS
    Publication number: 20090237368
    Abstract: Provided is a user input apparatus for controlling an image display device including: a first input unit receiving an instruction to perform a predetermined function of controlling the image display device when a discontinuous signal is received; a second input unit coupled to the first input unit and receiving an instruction to perform a predetermined function of controlling the image display device when a continuous signal is received; and a controller generating a control signal for performing a second function in conjunction with a first function in the image display device when the continuous signal is received from the second input unit within a predetermined period of time after an instruction to perform the first function of controlling the image display device is received from the first input unit.
    Type: Application
    Filed: November 6, 2008
    Publication date: September 24, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-hwan HWANG, Seung-dong YU, Woo-yong CHANG, Ju-il EOM, Eun-hee PARK
  • Air conditioner and method for changing refrigerant of air-conditioner
    Publication number: 20090235675
    Abstract: A air-conditioner and the refrigerant charging method of the air-conditioner are disclosed. When a refrigerant amount determining mode is requested to be performed, whether or not the refrigerant amount in the air-conditioner is proper is automatically determined and a shortage amount of refrigerant can be charged. Thus, a user can easily check whether or not the refrigerant charged in the air-conditioner is sufficient or insufficient, and if the refrigerant is not sufficient, the user can automatically charge the refrigerant without having to entirely remove the refrigerant from the air-conditioner, thus increasing the user convenience and reducing time and costs.
    Type: Application
    Filed: March 19, 2009
    Publication date: September 24, 2009
    Applicant: LG ELECTRONICS INC.
    Inventors: Seung Yong Chang, Chang Min Choi
  • Phase change memory device having carbon nano tube lower electrode material and method of manufacturing the same
    Patent number: 7589342
    Abstract: Disclosed is a phase change memory device including: a semiconductor substrate formed with a first insulating interlayer having a first contact hole; a contact plug formed in such a manner so as to be recessed within the first contact hole; a catalyst layer formed on the contact plug in such a manner so as to fill the first contact hole; a second insulating interlayer formed on the first insulating interlayer including the catalyst layer having a second contact hole through which the catalyst layer is exposed; a carbon nano tube lower electrode formed within the second contact hole in such a manner so as to come in contact with the catalyst layer; a phase change layer formed on the carbon nano tube lower electrode and a second insulating interlayer portion around the second contact hole; and an upper electrode formed on the phase change layer.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: September 15, 2009
    Assignee: Hynix Semiconductor Inc.
    Inventor: Heon Yong Chang
  • PHASE CHANGE MEMORY DEVICE ACCOUNTING FOR VOLUME CHANGE OF PHASE CHANGE MATERIAL AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20090225589
    Abstract: A phase change memory device includes a silicon substrate including a plurality of active regions which extend in a first direction and are arranged at regular intervals in a second direction perpendicular to the first direction. Switching elements are formed in each active region of the silicon substrate and are spaced apart from one another. Phase change patterns are formed in the second direction and have the shape of lines in such that the phase change patterns connect side surfaces of pairs of switching elements which are placed adjacent to each other in a direction diagonal to the first direction.
    Type: Application
    Filed: September 16, 2008
    Publication date: September 10, 2009
    Inventor: Heon Yong CHANG