Patents by Inventor Ui Kun Kwon

Ui Kun Kwon 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).

  • Communication method of a terminal and an access point for multi-user transmission opportunity (TXOP) power saving
    Patent number: 9232474
    Abstract: Provided is a terminal and an access point in an active mode for multi-user transmission opportunity (TXOP) power saving that may decrease power consumption by changing an operation state of the terminal from an awake state to a sleep state if there is no stream of data to be transmitted during a TXOP duration.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: January 5, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Soo Kim, Ui Kun Kwon
  • Communication system using wireless power
    Patent number: 9213932
    Abstract: Provided is a device and system for performing communication using wireless power, and a communication device using wireless power. The device may calculate a slope of an envelope in a waveform of energy stored in a target resonator through mutual resonance with a source resonator, and estimate a point placed within a predetermined interval around a point at which the slope reaches a maximum as a starting point of the mutual resonance between the source resonator and the target resonator.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: December 15, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ui Kun Kwon, Sang Joon Kim
  • WIRELESS POWER RECEPTION APPARATUS AND METHOD BASED ON SWITCHING
    Publication number: 20150340873
    Abstract: A wireless power reception apparatus includes a reception (RX) resonator configured to form a resonance coupling with a first resonance period associated with an envelope of a power to receive the power from a transmission (TX) resonator; a switch controller configured to generate, at intervals of the first resonance period, a control signal to deactivate the RX resonator at an off timing corresponding to a time instant at which a maximum energy is stored in an inductor of the RX resonator; and a switch configured to deactivate the RX resonator in response to the control signal.
    Type: Application
    Filed: November 5, 2014
    Publication date: November 26, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaechun Lee, Ui Kun Kwon, Sang Joon Kim, Seungkeun Yoon
  • Method and apparatus for detecting envelope using difference between sampling signals
    Patent number: 9191254
    Abstract: A method and an apparatus for detecting an envelope using a difference between sampling signals are provided. The method includes generating sampling sets based on sampling signals of a modulated signal, and determining a sampling set from the sampling sets. The method further includes determining an envelope component value associated with a sampling signal among sampling signals included in the determined sampling set, based on a difference between the sampling signals included in the determined sampling set, and a difference between sampling signals included in each of the sampling sets other than the determined sampling set. The method further includes detecting an envelope of the modulated signal based on the envelope component value.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: November 17, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Keun Yoon, Ui Kun Kwon, Sang Joon Kim
  • Communication system using wireless power
    Patent number: 9172434
    Abstract: Provided are apparatuses, systems and methods for performing communication using wireless power. According to one general aspect, a communication device using wireless power may include: a controller configured to determine whether a mutual resonance occurs between a target resonator and a source resonator; and a modulator configured to modulate data based on whether the mutual resonance occurs.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: October 27, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ui Kun Kwon, Sang Joon Kim
  • Method and apparatus for adaptively setting threshold for signal demodulation
    Patent number: 9172415
    Abstract: Provided is a method and apparatus to adaptively set a threshold for signal demodulation. The apparatus and the method include adaptively setting a threshold to demodulate a currently received symbol based on the demodulation value of a previously received symbol based on a comparison value. The comparison value is obtained by comparing a number of previously received symbols having a demodulation value of “0” and a number of currently received symbols having a demodulation value of “1”.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: October 27, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ui Kun Kwon, Chang Soon Park, Chi Sung Bae, Joon Seong Kang, Sang Joon Kim, Seung Keun Yoon, Chang Mok Choi
  • RECEPTION APPARATUS HAVING DUAL RECEPTION STRUCTURE, AND METHOD OF RECEIVING SIGNAL USING DUAL RECEPTION STRUCTURE
    Publication number: 20150288396
    Abstract: A reception apparatus having a dual reception structure includes a first receiver having a first quality (Q) factor and configured to receive a signal in a predetermined band in response to the first receiver being selected by a reception controller; a second receiver having a second Q factor greater than the first Q factor and configured to receive the signal in the predetermined band in response to the second receiver being selected by the reception controller; and a reception controller configured to select one of the first receiver and the second receiver based on interference information associated with an adjacent band adjacent to the predetermined band.
    Type: Application
    Filed: April 6, 2015
    Publication date: October 8, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seok Ju Yun, Ui Kun Kwon, Seong Joong Kim, Chang Soon Park, Young Jun Hong, Hyo Sun Hwang
  • Communication security method and apparatus of first node and second node communicating based on full duplex communication scheme using near field
    Patent number: 9154474
    Abstract: A communication security method and apparatus of a first node and a second node are provided. The first node and the second node communicate with each other based on a full duplex communication scheme using a near field. In the communication security method and apparatus, information to be transmitted may be encrypted based on received information and the encrypted information may be transmitted, in a TX node and an RX node. The communication security method and apparatus prevent an additional node from decrypting the information, and ensure transmission and reception of reliable data. In addition, the communication security method and apparatus prevent information from being decrypted in a physical layer, by periodically or aperiodically exchanging a new encryption key.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: October 6, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong Bu Lim, Ui Kun Kwon, Sang Joon Kim
  • Communication method of a terminal and an access point for multi-user transmission opportunity (TXOP) power saving
    Patent number: 9155043
    Abstract: Provided is a terminal and an access point in an active mode for multi-user transmission opportunity (TXOP) power saving that may decrease power consumption by changing an operation state of the terminal from an awake state to a sleep state if there is no stream of data to be transmitted during a TXOP duration.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: October 6, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Soo Kim, Ui Kun Kwon
  • COMMUNICATION SYSTEM AND METHOD USING SPACE DIVISION MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT (SD-MIMO) COMMUNICATION METHOD
    Publication number: 20150280799
    Abstract: Provided is a communication system using a space division multi-user multiple input multiple output (SD-MIMO) communication method. A transmission apparatus may transmit, to each of terminals included within a coverage, common control information commonly transmitted to the terminals and individual control information individually transmitted to each of the terminals. The transmission apparatus does not precode the common control information and transmits the non-precoded common control information. The transmission apparatus precodes the individual control information and transmits the precoded individual control information.
    Type: Application
    Filed: June 15, 2015
    Publication date: October 1, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun Kwon, Tae Rim Park, Young Soo Kim, Eung Sun Kim
  • Communication system and method using space division multi-user multiple input multiple output (SD-MIMO) communication method
    Patent number: 9071296
    Abstract: Provided is a communication system using a space division multi-user multiple input multiple output (SD-MIMO) communication method. A transmission apparatus may transmit, to each of terminals included within a coverage, common control information commonly transmitted to the terminals and individual control information individually transmitted to each of the terminals. The transmission apparatus does not precode the common control information and transmits the non-precoded common control information. The transmission apparatus precodes the individual control information and transmits the precoded individual control information.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: June 30, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ui Kun Kwon, Tae Rim Park, Young Soo Kim, Eung Sun Kim
  • WIRELESS POWER TRANSMISSION APPARATUS AND ENERGY CHARGING APPARATUS
    Publication number: 20150180240
    Abstract: A wireless power transmission apparatus includes a resonator configured to transmit power through a resonance with another resonator, a switch configured to connect the resonator to a power source, a setting unit configured to set a target amount of current to flow in the resonator, and a control unit configured to control the switch based on the target amount of current.
    Type: Application
    Filed: July 10, 2014
    Publication date: June 25, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun KWON, Sang Joon KIM, Seung Keun YOON
  • COMMUNICATION METHOD OF A TRANSMISSION APPARATUS AND A RECEPTION APPARATUS
    Publication number: 20150163742
    Abstract: Provided is a communication method of a reception apparatus and a transmission apparatus that may decrease consumption of power by changing an operation state of a corresponding reception apparatus from an awake state to a sleep state when a stream to be transmitted is absent during all or a portion of a transmission opportunity (TXOP).
    Type: Application
    Filed: January 22, 2015
    Publication date: June 11, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun KWON, Young Soo KIM
  • COMMUNICATION METHOD OF A TERMINAL AND AN ACCESS POINT FOR MULTI-USER TRANSMISSION OPPORTUNITY (TXOP) POWER SAVING
    Publication number: 20150156720
    Abstract: Provided is a terminal and an access point in an active mode for multi-user transmission opportunity (TXOP) power saving that may decrease power consumption by changing an operation state of the terminal from an awake state to a sleep state if there is no stream of data to be transmitted during a TXOP duration.
    Type: Application
    Filed: February 10, 2015
    Publication date: June 4, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Soo KIM, Ui Kun KWON
  • COMMUNICATION METHOD OF A TERMINAL AND AN ACCESS POINT FOR MULTI-USER TRANSMISSION OPPORTUNITY (TXOP) POWER SAVING
    Publication number: 20150156721
    Abstract: Provided is a terminal and an access point in an active mode for multi-user transmission opportunity (TXOP) power saving that may decrease power consumption by changing an operation state of the terminal from an awake state to a sleep state if there is no stream of data to be transmitted during a TXOP duration.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 4, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young Soo KIM, Ui Kun KWON
  • Apparatuses and methods for data transmission and reception
    Patent number: 9042477
    Abstract: Provided is a data transmission system of providing preambles of different classes according to a characteristic of a terminal. A terminal having constraints on using a power with respect to a data reception may receive only a preamble of a particular class and thus decrease a power consumption. A general terminal may receive preambles of plural classes and quickly receive data.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: May 26, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Rim Park, Ui Kun Kwon, Young Soo Kim, Eung Sun Kim
  • Transmitter and receiver for frequency domain equalization
    Patent number: 9042435
    Abstract: A transmitter and/or receiver for performing frequency domain equalization is provided. A transmitter includes a pilot position determination unit for determining positions for inserting pilots in a frequency domain based on frequency spectrums of data, and a pilot insertion unit for inserting the pilots between the frequency spectrums of the data according to the determined positions for inserting the pilots.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: May 26, 2015
    Assignees: Samsung Electronics Co., Ltd., Postech Academy-Industry Foundation
    Inventors: Dong Sik Kim, Ui Kun Kwon, Gi Hong Im, Chang Yong Shin
  • Method and apparatus for detecting envelope
    Patent number: 9036758
    Abstract: A method and apparatus for detecting an envelope are provided. The method and apparatus may detect an envelope of a modulating signal based on a low calculation complexity and a simple circuit configuration, by detecting an envelope for a plurality of sampling signals with equal time intervals.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: May 19, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Keun Yoon, Ui Kun Kwon, Sang Joon Kim
  • Near field communication (NFC) security apparatus and method
    Patent number: 9014627
    Abstract: A method and apparatus for security of communication devices that communicate with each other in a near field are provided. A Near Field Communication (NFC) security apparatus may detect the presence of a neighboring device other than communication devices, based on a change in a near field. In response to detecting the presence of the neighboring device, the NFC security apparatus may control an amount of energy transmitted by the communication devices such that the neighboring device may be prevented from accurately receiving a signal transmitted between the communication devices.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: April 21, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Joon Kim, Ui Kun Kwon, Seung Keun Yoon
  • COMMUNICATION SYSTEM AND METHOD USING SPACE DIVISION MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT (SD-MIMO) COMMUNICATION METHOD
    Publication number: 20150085947
    Abstract: Provided is a communication system using a space division multi-user multiple input multiple output (SD-MIMO) communication method. A transmission apparatus may transmit, to each of terminals included within a coverage, common control information commonly transmitted to the terminals and individual control information individually transmitted to each of the terminals. The transmission apparatus does not precode the common control information and transmits the non-precoded common control information. The transmission apparatus precodes the individual control information and transmits the precoded individual control information.
    Type: Application
    Filed: December 4, 2014
    Publication date: March 26, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun Kwon, Tae Rim Park, Young Soo Kim, Eung Sun Kim