Patents by Inventor Wan Choi

Wan Choi 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: 20180213442
    Abstract: The present application discloses a method for receiving, by a terminal, data in a wireless communication system. Specifically, the method for receiving data comprises the steps of: receiving a first division code from a first helper node in a first time unit; overhearing a second division code transmitted from a second helper node to another terminal in a second time unit; and acquiring the data by using the first division code and the second division code.
    Type: Application
    Filed: August 30, 2016
    Publication date: July 26, 2018
    Applicants: LG ELECTRONICS INC., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Tae Yeoung KIM, Dongin KIM, Wan CHOI, Hanbyul SEO
  • Publication number: 20180191475
    Abstract: Power offset signaling techniques for network-assisted interference cancellation and suppression (NAICS) receivers are described. In one embodiment, for example, user equipment (UE) may comprise at least one radio frequency (RF) transceiver, at least one RF antenna, and logic, at least a portion of which is in hardware, the logic to receive a radio resource control (RRC) connection control message comprising a RadioResourceConfigDedicated field and perform a radio resource configuration procedure in response to receipt of the RRC connection control message, the RRC connection control message to comprise network-assisted interference cancellation and suppression (NAICS) assistance information that identifies a power offset value for one or more transmissions to the UE over a physical downlink shared channel (PDSCH) of a serving cell of the UE. Other embodiments are described and claimed.
    Type: Application
    Filed: October 23, 2017
    Publication date: July 5, 2018
    Applicant: Intel Corporation
    Inventors: ALEXEI DAVYDOV, GI WAN CHOI, ALEXANDER MALTSEV, GREGORY V. MOROZOV
  • Publication number: 20180158046
    Abstract: An electronic device and method are disclosed herein. The electronic device includes a communication module configured to communicate with an external device, a memory configured to store security information controlling registration of secured information, the security information indicating a plurality of data types, an input module, and a processor. The processor implements the method, including security information for storage in a memory, the security information indicating a plurality of data types, in response to detecting a user input by an input module, retrieving account information corresponding to a user account, and in response to detecting that data elements of the account information correspond to the plurality of data types in the security information, transmitting a request to register the user account on a first transactional server.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 7, 2018
    Inventors: Jin Wan CHOI, Ho KIM
  • Patent number: 9974085
    Abstract: A method for operating a base station in a wireless communication system is provided. In the method, feedback is received from at least one terminal. When the base station configures terminal allocation information, a terminal that the base station is to service is determined based on information included in the feedback. A combination of base stations allowing the determined terminal to obtain maximal performance is determined with consideration of the information included in the feedback and a gain of cooperation between base stations.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: May 15, 2018
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Jung-Hoon Lee, Wan Choi, Hyun-Kyu Yu
  • Patent number: 9968333
    Abstract: A method and apparatus for analyzing elastography of tissue using ultrasound waves, wherein elastography information of tissue in a region of interest (ROI) is analyzed by irradiating ultrasound waves for diagnosis towards the ROI to which a shear wave is induced from an ultrasound probe, receiving echo ultrasound waves, and acquiring three-dimensional (3D) ultrasound images with respect to the ROI.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: May 15, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-young Park, Ki-wan Choi, Hyoung-ki Lee, Jong-hwa Won
  • Patent number: 9968334
    Abstract: An ultrasound diagnostic method and apparatus determines a transmission condition for generating shear waves at two or more positions of an object, for each of a plurality of elements of a transducer, and generates an ultrasound signal transmitted to the object through a full aperture of the transducer, according to the transmission condition.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: May 15, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-ho Park, Ki-wan Choi, Hyoung-ki Lee
  • Publication number: 20180130701
    Abstract: A method of processing a substrate by omitting a photolithographic process is disclosed. The method includes forming at least one layer on a stepped structure having an upper surface, a lower surface, and a side surface that connects the upper surface to the lower surface, selectively densifying portions of the at least one layer respectively on the upper surface and the lower surface via asymmetric plasma application, and performing an isotropic etching process on the at least one layer. During the isotropic etching process, the portion of the at least one layer formed on the upper surface is separated from the portion of the at least one layer formed on the lower surface.
    Type: Application
    Filed: June 30, 2017
    Publication date: May 10, 2018
    Inventors: Seung Ju Chun, Yong Min Yoo, Jong Wan Choi, Young Jae Kim, Sun Ja Kim, Wan Gyu Lim, Yoon Ki Min, Hae Jin Lee, Tae Hee Yoo
  • Publication number: 20180091277
    Abstract: Techniques for modulating and scrambling channel state information reference signals (CSI-RS) for more than eight antenna ports are discussed. One example system employing such techniques can include a processor and transmitter circuitry. The processor can be configured to determine CSI-RS signal parameters for a user equipment (UE) and modulate a plurality of CSI-RS signals based on a modulation sequence. The transmitter circuitry can be configured to transmit the CSI-RS signal parameters and the modulated plurality of CSI-RS signals to the UE. Each of the plurality of CSI-RS signals can be associated with a distinct CSI-RS antenna port of a plurality of CSI-RS antenna ports of the transmitter circuitry, and the modulation sequence can be based at least in part on indices of the CSI-RS antenna ports or subcarriers associated with the plurality of CSI-RS signals.
    Type: Application
    Filed: August 31, 2015
    Publication date: March 29, 2018
    Inventors: Alexei Davydov, Gregory Morozov, Gi Wan Choi
  • Publication number: 20180054715
    Abstract: A method for transmitting downlink data from a BS in a wireless communication system is disclosed. The method comprises receiving a first request signal of the downlink data from a first UE at a first timing point; transmitting packet of the downlink data to the first UE by using a unicast scheme until a multicast preparation time period passes from the first timing point; receiving a second request signal of the downlink data from a second UE at a second timing point after the first timing point; transmitting packet of the downlink data to the second UE by using the unicast scheme until the multicast preparation time period passes from the second timing point; and transmitting packet of the downlink data to a multicast group, which includes the first UE and the second UE, by using a multicast scheme when the multicast preparation time period passes.
    Type: Application
    Filed: August 16, 2017
    Publication date: February 22, 2018
    Applicants: RESEARCH BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Wan Choi, Bi Hong, Kyungrak Son, Dongin Kim, Hanbyul Seo
  • Publication number: 20180054747
    Abstract: Disclosed in the present application is a method for a terminal receiving data in a wireless communication system. Specifically, the method comprises the steps of determining at least one transmission subject for the data among one or more auxiliary nodes and a base station; receiving a distributed code from the determined at least one transmission subject; and obtaining the data from the distributed code, wherein the at least one transmission subject is determined based on the sum of the distributed codes stored in the auxiliary nodes and the number of auxiliary nodes existing within a predetermined distance from the terminal.
    Type: Application
    Filed: March 18, 2016
    Publication date: February 22, 2018
    Applicants: LG ELECTRONICS INC., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Hanbyul SEO, Wan CHOI, Dongin KIM, Bi HONG, Hojin SONG, Tae Yeong KIM
  • Publication number: 20180054716
    Abstract: A method for transmitting downlink data in a multicast scheme by a base station in a wireless communication system is disclosed. The method includes receiving a first request signal requesting first data from a first user equipment (UE), receiving a second request signal requesting second data from a second UE, generating a transmission message by applying an exclusive OR (XOR) operation to the first data and the second data, and transmitting the transmission message to the first UE and the second UE in the multicast scheme.
    Type: Application
    Filed: August 16, 2017
    Publication date: February 22, 2018
    Applicants: Research & Business Foundation Sungkyunkwan University, Korea Advanced Institute of Science and Technology
    Inventors: Wan Choi, Bi Hong, Kyungrak Son, Dongin Kim, Hanbyul Seo
  • Publication number: 20180051801
    Abstract: A system and method for electric oil pump control of hybrid electric vehicle are provided. The system includes a driving information detector that is configured to detect driving information according to driving of the hybrid vehicle and an operation type transmission of an electric oil pump (EOP) that receives and supplies transmission oil for operating a clutch. A controller analyzes the driving information, and detects an oil skew phenomenon and enters the EOP speed increasing mode when the hybrid vehicle stops by rapid braking, and increases the EOP speed to increase temporary oil absorption power during rapid starting in a predetermined reference period of time.
    Type: Application
    Filed: October 27, 2016
    Publication date: February 22, 2018
    Inventors: Yoh Han Kim, Jungwoo Seo, Jung Wan Choi
  • Publication number: 20180033625
    Abstract: A method of processing a substrate to enable selective doping without a photolithography process is provided. The method includes forming a diffusion barrier on the substrate having a patterned structure using plasma deposition method, removing the diffusion barrier except for part of the diffusion barrier using wet etching, forming a diffusion source layer on the patterned structure and the part of the diffusion barrier, and applying energy to the diffusion source layer.
    Type: Application
    Filed: July 27, 2017
    Publication date: February 1, 2018
    Inventors: Yong Min Yoo, Jong Wan Choi, Young Jae Kim, Sun Ja Kim, Wan Gyu Lim
  • Patent number: 9883468
    Abstract: Disclosed is a method of controlling, by a device, power for guaranteeing the quality of service of a device to device (D2D) direct communication. In detail, the method comprises the steps of: receiving, from a base station, information containing at least one of channel information and information of a receiving side device in a D2D communication; estimating an uplink channel with the base station on the basis of the received information; and selecting a transmission power by comparing the channel gain value of the uplink channel with a threshold value for determining the maximum transmission power, and transmitting data to the base station using the selected transmission power, wherein the channel information comprises at least one of channel information of the D2D communication, uplink channel information between the device and the base station, and interference channel information between the device and the receiving side device in the D2D communication.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: January 30, 2018
    Assignees: LG ELECTRONICS INC., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Hanbyul Seo, Hojin Song, Jongyeol Ryu, Dongin Kim, Byounghoon Kim, Wan Choi
  • Publication number: 20180027516
    Abstract: Embodiments of an eNB to operate in accordance with a coverage enhancement mode are disclosed herein. The eNB may comprise hardware processing circuitry to, during a legacy sub-frame, transmit a system information block (SIB) in legacy SIB frequency resources according to a legacy SIB transmission format and refrain from transmission of channel state information reference signals (CSI-RS). The hardware processing circuitry may be further to, during a first coverage enhancement sub-frame, transmit a first portion of the SIB in first SIB frequency resources included in the legacy SIB frequency resources. The hardware processing circuitry may be further to, during a first coverage enhancement sub-frame, transmit a first set of CSI-RS in first CSI-RS frequency resources that include at least a portion of the legacy SIB frequency resources.
    Type: Application
    Filed: September 11, 2017
    Publication date: January 25, 2018
    Inventors: Seunghee Han, Gang Xiong, Alexei Davydov, Jong-Kae Fwu, Gi Wan Choi
  • Publication number: 20180019293
    Abstract: A display device according to an exemplary embodiment of the present inventive concept includes: a substrate; a thin film transistor provided on a first side of the substrate; a first electrode connected with the thin film transistor; an organic emission layer provided on the first electrode and emitting light; a second electrode provided on the organic emission layer; and a light blocking layer contacting the substrate from a second side that faces the first side of the substrate, wherein the light is emitted in a direction toward the second electrode from the organic emission layer.
    Type: Application
    Filed: March 15, 2017
    Publication date: January 18, 2018
    Inventors: Dong Wan CHOI, Young Bin KIM
  • Publication number: 20170366308
    Abstract: Systems, apparatus, user equipment (UE), evolved node B (eNB), computer readable media, and methods are described for uplink grants and hybrid automatic repeat requests (HARQ) in communications systems. Some embodiments operate to determine that an unlicensed first channel is idle based on a sensing of the first channel for a first period of time. Such an embodiment may then generate a reservation signal on the first channel and an uplink grant for a first user equipment (UE). After the uplink grant is communicated, the embodiment senses the first channel to detect a physical uplink shared channel (PUSCH) transmission associated with the uplink grant. A HARQ acknowledgment or negative acknowledgement may be sent in various embodiments following the sensing.
    Type: Application
    Filed: December 10, 2015
    Publication date: December 21, 2017
    Inventors: Gi Wan Choi, Hwan-Joon Kwon, Abhijeet Bhorkar
  • Patent number: 9844067
    Abstract: Disclosed is a method in which a base station (BS) transmits information to a plurality of terminals in a wireless communication system. Specifically, the method comprises the steps of: dividing the plurality of terminals into two or more groups according to a channel state of each of the BS and the plurality of terminals and a channel state between the plurality of terminals; and broadcasting the information to a first group among the two or more groups, wherein the first group transmits the information to another group among the two or more groups through D2D communication.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: December 12, 2017
    Assignees: LG Electronics Inc., Research & Business Foundation Sungkyunkwan University
    Inventors: Wan Choi, Jongyeol Ryu, Dongin Kim, Hanbyul Seo, Byounghoon Kim, Hojin Song
  • Publication number: 20170335186
    Abstract: A phosphor composition of an embodiment and a light emitting device package including the same includes: a green phosphor excited by blue light to emit green light; a first red phosphor of a nitride series which is excited by the blue light and emits first red light; and a second red phosphor of a fluorine series which is excited by the blue light and emits second red light, and is capable of emitting white light without deterioration of optical characteristics at a high temperature while improving luminous flux and color reproduction rate as compared with a light emitting device package including a conventional phosphor composition.
    Type: Application
    Filed: December 9, 2015
    Publication date: November 23, 2017
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Ji Wook MOON, Hyoung Jin KIM, Jeong Yoon MOON, Jae Wan CHOI
  • Patent number: 9819461
    Abstract: Disclosed is a method for receiving a coordinated signal by a terminal on the basis of a terminal-to-terminal direct communication. Specifically, the method comprises the steps of: receiving a coordinated signal including an interference signal and a valid signal from a relay terminal; detecting an interference signal component by performing a first maximum-ratio combining on the coordinated signal; transmitting a first feedback information to the relay terminal if the detection of the interference signal component fails, and detecting a valid signal component by performing a second maximum-ratio combining if the detection of the interference signal component is successful; and transmitting a second feedback information to the relay terminal if the detection of the valid signal component fails.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: November 14, 2017
    Assignees: LG ELECTRONICS INC., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Dongin Kim, Duckdong Hwang, Wan Choi, Hanbyul Seo, Byounghoon Kim