Patents by Inventor Chang Chung

Chang Chung 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: 10033451
    Abstract: A receiving apparatus based on pattern/polarization beam division multiple access (BDMA) including an antenna configured to receive a reference signal related to at least one of patterns and polarizations of a plurality of antennas included in a transmitting apparatus, and configured to transmit channel information, and a controller configured to select a particular antenna group among a plurality of antenna groups that are grouped from the plurality of antennas included in the transmitting apparatus using the reference signal, and configured to generate the channel information corresponding to the particular antenna group.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: July 24, 2018
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong Ho Cho, Byung Chang Chung, Dae Hee Park, Joon Sang Han, Yun Sik Kim
  • Publication number: 20180175399
    Abstract: A metal-ion battery is provided. The metal-ion secondary battery includes a first chamber, a second chamber, and a control element. A positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a first electrolyte are disposed within the first chamber. A second electrolyte is disposed within the second chamber, and wherein components and/or concentration of the first electrolyte are different from those of the second electrolyte. The control element determines whether to introduce the second electrolyte disposed within the second chamber into the first chamber via a first pipeline.
    Type: Application
    Filed: November 15, 2017
    Publication date: June 21, 2018
    Applicant: Industrial Technology Research Institute
    Inventors: Chien-Chih CHIANG, Kuang-Yao CHEN, Chun-Hsing WU, Chang-Chung YANG
  • Publication number: 20180133687
    Abstract: An amphiphilic film structure includes an amphiphilic film, a hydrophobic material layer formed as a first material layer and a hydrophilic material layer formed as a second material layer. The hydrophobic material layer is made of at least one hydrophobic monomer material and the hydrophilic material layer is made of at least one hydrophilic monomer material. The hydrophilic material layer is attached to a predetermined surface for absorbing moisture thereof which can be diffused via the hydrophobic material layer.
    Type: Application
    Filed: March 17, 2017
    Publication date: May 17, 2018
    Inventors: Yi-Chang Chung, Kai-Ming WU
  • Patent number: 9967794
    Abstract: Provided are two types of schemes capable of reducing power consumption of a User Equipment (UE). The first scheme is to select a set capable of minimizing power consumption of the UE when the UE enters a sleep mode. The second scheme is a handover scheme in which the UE having entered the sleep mode maintains the sleep mode corresponding to a cooperative Base Station (BS) set in a handover of the UE.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: May 8, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung-Jin Park, Min-Hoe Kim, Byung-Chang Chung, Dong-Ho Cho
  • Publication number: 20180097236
    Abstract: An electrode and a device employing the same are provided. The electrode includes a main body, and an active material. The main body includes a cavity and is made of a conductive network structure. In particular, the active material is disposed in the cavity, wherein the length of the longest side of the particle of the active material is greater than the length of the longest side of the pore of the conductive network structure such that the active material is confined in the conductive network structure.
    Type: Application
    Filed: July 25, 2017
    Publication date: April 5, 2018
    Applicant: Industrial Technology Research Institute
    Inventors: Kuang-Yao CHEN, Ting-Wei HUANG, Chien-Chih CHIANG, Chun-Hsing WU, Chang-Chung YANG, Wen-Sheng CHANG
  • Publication number: 20180083287
    Abstract: A metal-ion secondary battery is provided. The metal-ion secondary battery includes a positive electrode. The positive electrode includes at least one current-collecting layer and at least one active layer, wherein the current-collecting layer and the active layer are mutually stacked, and the current-collecting layer has at least one first through-hole.
    Type: Application
    Filed: August 8, 2017
    Publication date: March 22, 2018
    Applicant: Industrial Technology Research Institute
    Inventors: Chien-Chih CHIANG, Kuang-Yao CHEN, Chun-Hsing WU, Chang-Chung YANG, Wen-Sheng CHANG
  • Publication number: 20180069239
    Abstract: An electrode, a method for fabricating the same, and a metal ion battery employing the same are provided. The electrode includes a carbon substrate, a metal layer disposed on the carbon substrate, and a crystalline carbon material disposed between the carbon substrate and the metal layer. In particular, the crystalline carbon material is in direct contact with the carbon substrate or the metal layer.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 8, 2018
    Applicant: Industrial Technology Research Institute
    Inventors: Kuang-Yao CHEN, Chun-Kai LIN, Chien-Chih CHIANG, Chun-Hsing WU, Chang-Chung YANG
  • Patent number: 9911977
    Abstract: Disclosed herein is a cathode active material including a lithium manganese oxide, in which the lithium manganese oxide has a spinel structure with a predetermined constitutional composition represented by Formula 1 described in the detailed description, wherein a conductive material is applied to the surface of lithium manganese oxide particles, so as to exhibit charge-discharge properties in the range of 2.5 to 3.5V as well as in the 4V region.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: March 6, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Kuk Noh, Sin Kyu Kim, Geun-Chang Chung, Song-Taek Oh, Sanguck Lee, Jong Chan Kim
  • Publication number: 20180062721
    Abstract: A coordinated transmission method based on beam division multiple access and an apparatus performing the same are disclosed. The coordinated transmission method in a beam division multiple access environment, which divides a service target region into a plurality of beam sectors through a plurality of antenna arrays having at least one of a pattern characteristic and a polarization characteristic, includes receiving a coordination request from a user terminal located in the service target region and performing any one among a macro diversity operation, a coordinated silence operation, and a coordinated beamforming operation for the user terminal based on an interference level included in the coordination request.
    Type: Application
    Filed: February 22, 2016
    Publication date: March 1, 2018
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Dong Ho CHO, Byung Chang CHUNG, Dae Hee PARK, Joon Sang HAN, Yun Sik KIM
  • Patent number: 9907049
    Abstract: Provided is a method and apparatus for operating an idle mode in a wireless communication system. The method includes receiving a first message requesting entry to an idle mode from a Subscriber Station (SS) through at least one Base Station (BS), selecting in response to reception of the first message whether the MS is to enter an idle mode in which BSs belonging to a paging group broadcast a paging message for the MS or whether the MS is to enter a semi-idle mode in which BSs belonging to a semi-idle paging group, which is a subset of the paging group, broadcast the paging message for the SS, and transmitting Paging announce information instructing the BSs belonging to the semi-idle paging group to broadcast the paging message for the SS, if the semi-idle mode is selected.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: February 27, 2018
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology (KAIST)
    Inventors: Hyun-Jeong Kang, Min-Hoe Kim, Sung-Jin Park, Byung-Chang Chung, Dong-Ho Cho
  • Patent number: 9907090
    Abstract: The present invention can reduce the clashing of random accesses by assigning a random access priority according to the number of links. A method for random access from a terminal in a virtual cell network system according to an embodiment of the present invention comprises the steps of determining the number of links that are connected to the terminal; selecting a random access set for random access on the basis of the number of links; selecting a slot resource for random access from the random access set on the basis of the number of links; and performing a random access over the slot resource, wherein the slot resource includes a common resource held by a plurality of base stations.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: February 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Jin Park, Min-Hoe Kim, Byung-Chang Chung, Dong-Ho Cho
  • Patent number: 9865904
    Abstract: Disclosed herein is a battery cell configured such that at least one electrode assembly of a structure having a cathode, an anode, and a separator interposed between the cathode and the anode is mounted in a battery case, at least one heat dissipation member to dissipate heat generated in the electrode assembly during charge and discharge of the battery cell or upon occurrence of a short circuit is disposed in the electrode assembly and/or is in contact with an outer surface of the electrode assembly, and a portion of the heat dissipation member is exposed outward from the electrode assembly.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: January 9, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Jae Hyun Lee, Seunghyun Chung, Geun Chang Chung
  • Publication number: 20170368251
    Abstract: A blood isolation and extraction method includes: providing a predetermined amount of blood; utilizing a platelet filter unit to filter the predetermined amount of blood to generate a filtered blood; utilizing a plasma separation unit to divide the filtered blood into a plasma layer and a blood cell layer for separating blood cells from blood plasma; and extracting the blood plasma from the plasma layer and the blood cells from the blood cell layer. In another embodiment, the blood isolation and extraction method further includes: providing a platelet-washing unit to wash the platelet filter unit with a solution to produce a platelet solution; and mixing the platelet solution with the blood plasma to produce a platelet and plasma mixed solution.
    Type: Application
    Filed: June 26, 2016
    Publication date: December 28, 2017
    Inventors: Yi-Chang Chung, Yi-Hong Chiu, Chia-Chune Wu, Che-Wen Chang, Kai-Ming Wu
  • Patent number: 9853288
    Abstract: Disclosed is a lithium secondary battery including (i) a cathode active material including a lithium metal phosphate according to Formula 1 below; and (ii) an anode active material including amorphous carbon, Li1+aM(PO4?b)Xb??(1) wherein M is at least one selected from metals of Groups II to XII, X is at least one selected from F, S and N, ?0.5?a?+0.5, and 0?b?0.1.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: December 26, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Young Geun Choi, Geun Chang Chung, Yourim Yoon, Seung Jae Yoon, Jong Mo Jung, Jonghyun Chae
  • Patent number: 9853328
    Abstract: Disclosed are an electrolyte for lithium secondary batteries including 10 wt % to 90 wt % of an ester based solvent and 10 wt % to 90 wt % of a carbonate based solvent with respect to the total weight of a non-aqueous solvent, and a lithium secondary battery including the same.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: December 26, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Young Geun Choi, Jong Mo Jung, Jonghyun Chae, Chul Haeng Lee, Geun Chang Chung, Yourim Yoon, Young Cheol Choi, Seung Jae Yoon
  • Publication number: 20170358815
    Abstract: An electrolyte composition and a metal-ion battery employing the same are provided. The electrolyte composition includes a metal chloride, a chlorine-containing ionic liquid, and an additive, wherein the additive has a structure represented by Formula (I) [M]i[(A(SO2CxF2x+1)y)b?]j??Formula (I) , wherein M can be imidazolium cation, ammonium cation, azaannulenium cation, . . . etc., wherein M has a valence of a; a can be 1, 2, or 3; A can be N, O, Si, or C; x can be 1, 2, 3, 4, 5, or 6; y can be 1, 2, or 3; b can be 1, 2, or 3; i can be 1, 2, or 3; j can be 1, 2, or 3; a/b=j/i; and when y is 2 or 3, the (SO2CxF2x+1) moieties are the same or different.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 14, 2017
    Applicant: Industrial Technology Research Institute
    Inventors: Che-Wei CHANG, Wen-Sheng CHANG, Chun-Tsung HSU, Yu-Wen YEH, Tai-Feng HUNG, Chang-Chung YANG
  • Patent number: 9806311
    Abstract: The present invention relates to a battery pack capable of discharging gases in a pouch type battery cell when a gas pressure inside the pouch type battery cell is increased over a reference pressure, the battery pack including: a plurality of pouch type battery cells; a case comprising partitions suppressing the pouch type battery cells from expanding in a thickness direction thereof, wherein the pouch type battery cells are respectively held in spaces defined by the partitions; and a punching unit installed on the case to pierce a portion of surfaces of the pouch type battery cells, which is not supported by the partition, and having pin members of which number is equal to that of the pouch type battery cells.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: October 31, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Seung Hyun Chung, Geun Chang Chung
  • Patent number: 9767734
    Abstract: An display device includes a display panel including a plurality of pixels; a scan driver configured to provide scan signals to the pixels; a data driver configured to provide data signals to the pixels; a look-up table (LUT), wherein an efficiency curve indicating a relationship between an accumulated driving time and an efficiency value is stored in the LUT; a lifespan register, wherein an efficiency changing region for deriving the efficiency value of each of the pixels from the LUT is stored in the lifespan register and the lifespan register is configured to accumulatively store deterioration data of the pixels; and a controller configured to derive the accumulated driving time from the lifespan register, to update the efficiency changing region and the LUT based on the accumulated driving time, and to convert input image data into output image data using the efficiency changing region and the LUT.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: September 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bong-Ju Jun, Won-Chang Chung, Kwang-Suk Shin
  • Publication number: 20170244467
    Abstract: A receiving apparatus based on pattern/polarization beam division multiple access (BDMA) including an antenna configured to receive a reference signal related to at least one of patterns and polarizations of a plurality of antennas included in a transmitting apparatus, and configured to transmit channel information, and a controller configured to select a particular antenna group among a plurality of antenna groups that are grouped from the plurality of antennas included in the transmitting apparatus using the reference signal, and configured to generate the channel information corresponding to the particular antenna group.
    Type: Application
    Filed: February 24, 2017
    Publication date: August 24, 2017
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Dong Ho CHO, Byung Chang CHUNG, Dae Hee PARK, Joon Sang HAN, Yun Sik KIM
  • Patent number: D820894
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: June 19, 2018
    Assignee: VIVOTEK INC.
    Inventors: Wei-Kai Tang, Chang-Chung Yu, Ying-Kang Chen