Patents by Inventor Yang-Seok Choi

Yang-Seok 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).

  • Patent number: 10419145
    Abstract: Apparatus, systems, and methods to identify victims and aggressors of interference in full duplex communication systems are described. In one example, a controller comprises logic to detect a quality of service issue in a wireless communication downlink with a first user equipment in a first cell and in response to detecting the quality of service issue, determine whether the user equipment is a victim of interference from a second user equipment or is a victim of interference from a downlink with a second user equipment in a second cell. Other examples are also disclosed and claimed.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: September 17, 2019
    Assignee: INTEL CORPORATION
    Inventors: Ping Wang, Feng Xue, Yang-Seok Choi, Shu-Ping Yeh, Shilpa Talwar
  • Publication number: 20190242744
    Abstract: The present invention provides an online diagnostic/prognostic system, for a rotation device, which does not require a diagnostic apparatus to be transferred and enables easy transmission of waveform data to a remote site. To this end, the present invention comprises: a vibration sensor mounted on a rotation device; a data analyzing unit connected to the vibration sensor and for extracting valid data, which is required for the diagnosis of the rotation device, from data obtained from the vibration sensor; and a diagnostic/prognostic server for diagnosing for abnormalities in the rotation device by means of comparing the valid data and prestored data. Therefore, the present invention does not require an apparatus for measuring vibrations to be transferred and enables transmission of waveform data to a remote cite, thereby enabling more efficient diagnosis for a rotation device and preventing abnormalities in the rotation device.
    Type: Application
    Filed: August 29, 2017
    Publication date: August 8, 2019
    Inventors: Yang Seok Kim, Dae Woong KIM, Bum Nyun KIM, Ji In KIM, Nam Woo CHOI, Jae Hun SHIN, Young Sheop PARK, Chi Yong PARK, Jong Seog KIM, Hyoung Kyun KIM, Byoung Oh LEE, Hee Seung CHANG, You Soo SHIN
  • Patent number: 10375691
    Abstract: The present invention relates to a method for managing wireless resources, and an access point (AP) using the same. The method for managing wireless resources, according to one embodiment of the present invention, can comprise: a monitoring step of monitoring the use state of an operation channel being used, so as to determine the use state of the wireless resources for the operation channel; and a control step of changing, by the AP, the frequency of the operation channel or handing a terminal connected to the AP over to a neighboring AP according to the determined use state of the wireless resources.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: August 6, 2019
    Assignee: KT CORPORATION
    Inventors: Yang-Seok Jeong, Young-Keum Song, Jong-Hwa Shin, Mi-Ji Choi
  • Publication number: 20190229884
    Abstract: A communication circuit arrangement includes a first kernel dimension filter circuit configured to apply a first kernel dimension filter to a first input signal to estimate a first kernel dimension interference signal from a first amplifier, a second kernel dimension filter circuit configured to apply a second kernel dimension filter to a second input signal to estimate a second kernel dimension interference signal from a second amplifier, a joint delay tap dimension filter configured to apply a joint delay tap dimension filter to a combination of the first kernel dimension interference signal and the second kernel dimension interference signal to obtain an estimated joint interference signal, and a cancelation circuit configured to remove the estimated joint interference signal from a received signal to obtain a clean signal.
    Type: Application
    Filed: September 29, 2016
    Publication date: July 25, 2019
    Inventors: Feng XUE, Yang-Seok CHOI, Daniel SCHWARTZ, Shu-Ping YEH, Namyoon LEE, Venkatesan NALLAMPATTI EKAMBARAM, Ching-En LEE, Chia-Hsiang CHEN
  • Patent number: 10359822
    Abstract: An embodiment includes a system, comprising: a processor; a plurality of memories; and a control circuit coupled to the processor and the memories, and configured to: receive a power limit; measure a power consumption of the processor and the memories; and iteratively change a plurality of operating parameters of the processor and the memories to optimize an objective function associated with the system to operating states where the power consumption is less than or equal to the power limit.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: July 23, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Inseok Stephen Choi, Byoung Young Ahn, Yang Seok Ki
  • Publication number: 20190214156
    Abstract: The present invention provides a method for enabling a large integrated monitoring screen for integrated monitoring of multiple reactors, and a large integrated monitoring screen system. The method for enabling the large integrated monitoring screen comprises the steps of: a screen generation managing device in a remote integrated monitoring center generating at least one of a status monitoring screen, an early warning screen, a diagnostic analysis screen, and a CCTV screen with respect to a plurality of reactors in a nuclear power plant; and transmitting a screen requested by an administrator to the large integrated monitoring screen through an integrated screen control device.
    Type: Application
    Filed: August 29, 2017
    Publication date: July 11, 2019
    Inventors: Dae Woong KIM, Yang Seok KIM, Bum Nyun KIM, Young Sheop PARK, Chi Yong PARK, Jong Seog KIM, Hyoung Kyun KIM, Byoung Oh LEE, Ji In KIM, Nam Woo CHOI, Ji Soo RYU, Jeong Hag OH, Jung Hoon KIM
  • Patent number: 10342046
    Abstract: This disclosure describes systems, methods, and devices related to an sending request message based on received announcements system. A device may identify a transmitter announcement received from a first device. The device may identify a receiver announcement received from a second device. The device may cause to send a request message to transmit to a third device based at least in part on a predetermined threshold associated with the receiver announcement. The device may identify an indication that the third device is able to receive one or more packets from the device. The device may cause to send the one or more packets to the third device.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: July 2, 2019
    Assignee: Intel Corporation
    Inventors: Ping Wang, Shu-Ping Yeh, Yang-Seok Choi
  • Publication number: 20190195249
    Abstract: Method for diagnosing a pneumatic control valve by using a positioner model includes: establishing relational expression for outputting valve stem displacement according to control pressure, the relational expression including parameters for the characteristics of a positioner, an actuator, and a valve, determining initial parameter value by adjusting the values of the parameters until the difference between a measured value for a normal operation of the pneumatic control valve and output value obtained by the relational expression is smaller than predetermined error limit, determining diagnostic parameter value by adjusting the values of the parameters until the difference between a measured value for a diagnostic operation of the pneumatic control valve and an output value obtained by the relational expression is smaller than a predetermined error limit, and comparing the initial parameter value and the diagnostic parameter value so as to determine whether the pneumatic control valve has abnormality.
    Type: Application
    Filed: August 30, 2017
    Publication date: June 27, 2019
    Inventors: Yang Seok KIM, Dae Woong KIM, Bum Nyun KIM, Young Sheop PARK, Chi Yong PARK, Jong Seog KIM, Hyoung Kyun KIM, Byoung Oh LEE, Ji In KIM, Nam Woo CHOI, Yong Hoon PARK, Hee Seung CHANG, You Soo SHIN
  • Patent number: 10334455
    Abstract: An apparatus and a method for identifying a desired signal and suppressing co-channel interference in real-time from a signal received over a wireless channel are disclosed. For example, the method, by a circuit, determines values of a first set of terms of a cost function that are based on received data, the cost function being a measure of a level of the received data being non-Gaussian, determines, by the circuit, optimal values of a set of weight vectors for maximizing the cost function, identifies, by the circuit, a desired signal based on the optimal values of the set of weight vectors and the values of the first set of terms, and decodes, by a channel decoder coupled to the circuit, a channel of the desired signal that is identified.
    Type: Grant
    Filed: July 1, 2017
    Date of Patent: June 25, 2019
    Assignee: Intel Corporation
    Inventors: Venkatesan Nallampatti Ekambaram, Yang-Seok Choi
  • Publication number: 20190188345
    Abstract: The present invention provides a method for diagnosing a rotation device by means of a rotor-bearing-foundation model, the method characterized by utilizing the characteristics of a simulation rotor system. To this end, the present invention comprises the steps of: simulating a rotation device as a rotor system; forming a mathematical model for the rotor system; estimating the state of the rotation device by means of the mathematical model and a vibration measurement value of the rotation device; and diagnosing for abnormalities in the rotation device from the changes in an estimated value. Therefore, since a rotation device is diagnosed for abnormalities by means of forming a mathematical model for a rotor system, the present invention enables more accurate diagnosis of the rotation device.
    Type: Application
    Filed: August 29, 2017
    Publication date: June 20, 2019
    Inventors: Yang Seok Kim, Dae Woong KIM, Bum Nyun KIM, Young Sheop PARK, Chi Yong PARK, Jong Seog KIM, Hyoung Kyun KIM, Byoung Oh LEE, Ji In KIM, Nam Woo CHOI, Ji Soo RYU, Hee Seung CHANG, You Soo SHIN
  • Publication number: 20190186292
    Abstract: A method for turbocharger key-off cooling control may include performing turbocharger key-off cooling control based on engine load for circulating engine coolant to a turbocharger cooling line when high cooling performance of a vehicle is checked by a coolant temperature and an oil temperature at which a turbocharger controller does not require operation of an auxiliary electric water pump when an engine is stopped.
    Type: Application
    Filed: November 19, 2018
    Publication date: June 20, 2019
    Inventors: Su-Ho Lee, Jae-Seok Choi, Min-Young Kwon, Jun-Ho Lee, Yong-Hoon Kim, Yang-Geol Lee
  • Patent number: 10289722
    Abstract: A multi-level cache system may include a server with a processor and memory. The memory may include a database cache system for use with a distributed database system. The server may also include a Solid State Drive that may include a key-value store and a second storage device that may store a backend database. The key-value store may act as a second level cache to the database cache system.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: May 14, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Inseok Stephen Choi, Byoung Young Ahn, Yang Seok Ki
  • Patent number: 10257108
    Abstract: A full-duplex (FD) capable access point (AP) of a wireless basic service set (BSS) that includes a plurality of stations (STAs) is configured to implement opportunistic FD downlink (DL) transmissions to a non-FD capable STA in the BSS when decoding uplink (UL) data from a UL STA in the BSS. While decoding the UL data, the AP selects a DL STA from a queue of DL STAs based on a predetermined FD DL transmission rate from the AP to the DL STA while the AP is decoding the UL data from the UL STA. The AP then causes an amount of data to be transmitted as an FD transmission to the selected DL STA while the processor is decoding the data from the UL STA.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: April 9, 2019
    Assignee: Intel Corporation
    Inventors: Yicong Wang, Shu-Ping Yeh, Ping Wang, Alexander W. Min, Yang-Seok Choi
  • Publication number: 20190007845
    Abstract: An apparatus and a method for identifying a desired signal and suppressing co-channel interference in real-time from a signal received over a wireless channel are disclosed. For example, the method, by a circuit, determines values of a first set of terms of a cost function that are based on received data, the cost function being a measure of a level of the received data being non-Gaussian, determines, by the circuit, optimal values of a set of weight vectors for maximizing the cost function, identifies, by the circuit, a desired signal based on the optimal values of the set of weight vectors and the values of the first set of terms, and decodes, by a channel decoder coupled to the circuit, a channel of the desired signal that is identified.
    Type: Application
    Filed: July 1, 2017
    Publication date: January 3, 2019
    Inventors: Venkatesan Nallampatti Ekambaram, Yang-Seok Choi
  • Patent number: 10142084
    Abstract: This disclosure describes methods and devices related to self-interference cancellation. A device is disclosed comprising: at least one memory storing computer-executable instructions; and at least one processor configured to access the at least one memory, wherein the at least one processor may be configured to execute the computer-executable instructions to cause to send at least one first symbol sequence at least twice on a first transmit chain and at least one second symbol sequence twice on a second transmit chain. The processor may be configured to execute the computer-executable instructions to determine at least one third symbol sequence at least twice on a first receive chain and at least one fourth symbol sequence at least twice on a second receive chain.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: November 27, 2018
    Assignee: Intel Corporation
    Inventors: Namyoon Lee, Yang-Seok Choi
  • Patent number: 10116427
    Abstract: Methods and devices are described for enabling different transmission modes that include full-duplex modes in a wireless network are described. A medium access control layer design is described that enables evaluation of interferences that would result from a transmission mode in order to facilitate decision making by the network access point and the wireless stations associated therewith in selecting a particular transmission mode. Signaling techniques for setting up the different transmission techniques are also described.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: October 30, 2018
    Assignee: Intel Corporation
    Inventors: Ping Wang, Shu-Ping Yeh, Yang-Seok Choi, Shilpa Talwar
  • Publication number: 20180310314
    Abstract: Embodiments of the present invention provide a virtual multicarrier design for orthogonal frequency division multiple access communications. Other embodiments may be described and claimed.
    Type: Application
    Filed: June 28, 2018
    Publication date: October 25, 2018
    Inventors: Hujun Yin, Rongzhen Yang, Xiaoshu Qian, Yang-Seok Choi, Sassan Ahmadi, Kamran Etemad
  • Publication number: 20180288789
    Abstract: A fill-duplex (FD) capable access point (AP) of a wireless basic service set (BSS) that includes a plurality of stations (STAs) is configured to implement opportunistic FD downlink (DL) transmissions to a non-FD capable STA in the BSS when decoding uplink (UL) data from a UL STA in the BSS. While decoding the UL data, the AP selects a DL STA from a queue of DL STAs based on a predetermined FD DL transmission rate from the AP to the DL STA while the AP is decoding the UL data from the UL STA. The AP then causes an amount of data to be transmitted as an FD transmission to the selected DL STA while the processor is decoding the data from the UL STA.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 4, 2018
    Inventors: Yicong Wang, Shu-Ping Yeh, Ping Wang, Alexander W. Min, Yang-Seok Choi
  • Patent number: 10091796
    Abstract: Methods adapted for measuring interference in joint communications and Access Points (APs) are described. The interference can be between the AP and first and second communication stations (STAs). In a method to measure interference, a first communication between the AP and the first STA can be established. Further, a second communication between the AP and the second STA can be established. The second communication can include transmitting a null data packet (NDP) to the second STA based on the first communication to measure STA-to-STA inference between the first STA and the second STA.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: October 2, 2018
    Assignee: Intel Corporation
    Inventors: Shu-Ping Yeh, Ping Wang, Alexander W. Min, Yang-Seok Choi
  • Publication number: 20180241493
    Abstract: Apparatus, systems, and methods to identify victims and aggressors of interference in full duplex communication systems are described. In one example, a controller comprises logic to detect a quality of service issue in a wireless communication downlink with a first user equipment in a first cell and in response to detecting the quality of service issue, determine whether the user equipment is a victim of interference from a second user equipment or is a victim of interference from a downlink with a second user equipment in a second cell. Other examples are also disclosed and claimed.
    Type: Application
    Filed: September 18, 2015
    Publication date: August 23, 2018
    Applicant: Intel Corporation
    Inventors: Ping Wang, Feng Xue, Yang-Seok Choi, Shu-Ping Yeh, Shilpa Talwar