Patents by Inventor Hyeon KWON

Hyeon 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).

  • ON-SCREEN DISPLAY APPARATUS
    Publication number: 20130076901
    Abstract: There is provided an on-screen display (OSD) apparatus including: a plurality of ultrasonic sensors having respective ranges previously assigned thereto to thereby detect an object therein; a camera module capturing an image of the ranges detected by the plurality of ultrasonic sensors; and a controlling unit controlling a display of positional information of the object detected in the ranges assigned to the plurality of individual ultrasonic sensors in the image captured by the camera module.
    Type: Application
    Filed: December 20, 2011
    Publication date: March 28, 2013
    Applicant: SAMSUNG ELECTRO-MECHANICS CO.,LTD.
    Inventors: Gyu Won Kim, Kyoung Joong Min, In Taek Song, Tae Hyeon Kwon
  • Method for transmitting signal in multiple antenna system
    Patent number: 8406333
    Abstract: A signal transmission method in a multiple antenna system is described. The signal transmission method includes, upon receiving channel state information from a receiving end, estimating a channel according to the channel state information, determining a precoding matrix according to the estimated channel and modifying the signal of the transmitting end using the precoding matrix in a process of mapping a symbol of the signal to a subcarrier, and transmitting the signal to the receiving end. According to the present invention, pre-equalization of a transmission signal can cause a receiving end to perform coherent combination, reduce pilot density by decreasing unnecessary pilots, and reduce interference within a cell or between cells.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: March 26, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Min Seok Noh, Sung Ho Moon, Dong Cheol Kim, Jin Sam Kwak, Hyun Woo Lee, Seung Hee Han
  • Communication method for radio communication system
    Patent number: 8406157
    Abstract: A communication method of a user equipment using a time division duplex (TDD) frame in a wireless communication system is provided. The communication method include configuring a TDD frame comprising at least one downlink subframe and at least one uplink subframe, and transmitting a signal by using the TDD frame, wherein an uplink of the TDD frame starts on the basis of a guard period (GP) or an uplink pilot time slot (UpPTS) of a heterogeneous TDD frame.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: March 26, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Min Seok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Sung Ho Moon, Seung Hee Han, Hyun Woo Lee
  • Method for transceiving a signal in wireless communication system
    Patent number: 8400952
    Abstract: A method of transmitting a signal using a prescribed frame structure in a wireless communication system is disclosed. A mobile station is able to transmit or receive a signal using a frame structure with a CP length corresponding to ¼ of a useful symbol. Moreover, the mobile station is able to transmit or receive a signal using a frame structure with a CP length corresponding to ¼ of a useful symbol, which is designed to mutually coexist without causing collision or interference with another frame structure with a different CP length. In this case, a channel bandwidth of the prescribed frame structure is 7 MHz.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: March 19, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Guk Lim, Sung Ho Moon, Han Gyu Cho, Yeong Hyeon Kwon, Jin Sam Kwak
  • Apparatus for transmitting data using carriers and method thereof
    Patent number: 8401095
    Abstract: An apparatus for transmitting data using a plurality of carriers and method thereof are disclosed, by which PAPR improving effect is enhanced. A method of generating an OFDM signal, which is transmitted by spreading data symbols using a DFT (Discrete Fourier Transform) matrix, according to the present invention includes the steps of generating an output symbol by data-processing the data symbols in time domain in a manner of giving a specific weight to the data symbols and summing up the weight-given data symbols and generating the OFDM signal by performing OFDM data processing on the output symbol.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: March 19, 2013
    Assignee: LG Electronics Inc.
    Inventors: Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Young Woo Yun
  • Method for setting cyclic shift considering frequency offset
    Patent number: 8401113
    Abstract: A method for transmitting a random access preamble to a base station at a user equipment (UE) includes generating the random access preamble from a Zadoff-Chu sequence having a length ‘N’ and a root index ‘M’, wherein the random access preamble is defined by a cyclic shift of the Zadoff-Chu sequence and transmitting the generated random access preamble to the base station via a random access channel, wherein the cyclic shift is given by using a variable corresponding to a Doppler shift of one subcarrier spacing, the variable given by using the root index ‘M’, and wherein the cyclic shift is differently given based on whether the variable is smaller than ? of the length ‘N’.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: March 19, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Min Seok Noh, Yeong Hyeon Kwon, Seung Hee Han, Dong Cheol Kim, Jin Sam Kwak, Dragan Vujcic
  • Method of transmitting control signal in wireless communication system
    Patent number: 8401099
    Abstract: A method of transmitting a control signal in a wireless communication system includes allocating a first sequence to spread a first control signal in a radio resource, allocating a second sequence to spread a second control signal in the radio resource, selecting one of the first control signal and the second control signal, generating a spread control signal by spreading the selected control signal, and transmitting the spread control signal in the radio resource, wherein the first sequence and the second sequence use different cyclic shifts of a base sequence.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: March 19, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Sam Kwak, Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim
  • Method and apparatus for transmitting signals
    Patent number: 8396160
    Abstract: Disclosed herein is a method for transmitting signals in a wireless communication system, including joint coding one or more signals, separating the joint coded signal by a number of a plurality of channel aggregation used for transmission, respectively allocating the separated signals to the plurality of the channel aggregation, and transmitting the signals, such that a receiver smoothly performs decoding.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: March 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Ki Hwan Kim, Yeong Hyeon Kwon, Jae Hoon Chung, So Yeon Kim
  • Method for transmitting data in wireless communication system
    Patent number: 8396068
    Abstract: A method for transmitting data in a wireless communication system is provided. The method includes: transmitting first data through a radio resource allocated in a unit of a default transmission time interval (TTI) including at least one sub-frame in a frame including a plurality of sub-frames consisting of a plurality of orthogonal frequency division multiplexing (OFDM) symbols; and transmitting second data through a radio resource allocated in a unit of a modified TTI obtained by changing the number of sub-frames included in the default TTI in the frame.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: March 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Seong Ho Moon, Ki Ho Nam, Seung Hee Han, Min Seok Noh, Jin Sam Kwak, Hyun Woo Lee, Dong Cheol Kim, Sung Gu Cho, Yeong Hyeon Kwon
  • METHOD AND APPARATUS FOR TRANSMITTING APERIODIC SOUNDING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20130058306
    Abstract: A method and apparatus for transmitting an aperiodic sounding reference signal (SRS) in a wireless communication system is provided. The method include receiving a downlink control information (DCI) format including a triggering signal for triggering a transmission of an aperiodic SRS from a base station (BS) via a physical downlink control Channel (PDCCH), blind-decoding the PDCCH in a UE-specific search space, and transmitting the aperiodic SRS triggered based on the triggering signal to the BS.
    Type: Application
    Filed: May 16, 2011
    Publication date: March 7, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Min Seok Noh, Yeong Hyeon Kwon, Sung Ho Moon, Jae Hoon Chung
  • Symbol mapping method for repetition channel coding
    Patent number: 8391405
    Abstract: A symbol mapping method for repetition coding is disclosed. The symbol mapping method comprises performing repetition coding on codeword to output repeated codeword symbols, and mapping the repeated codeword symbols with subcarriers located in different localized resource blocks. According to the embodiments of the present invention, it is possible to obtain maximum reliability in a receiving side by mapping codeword bits with subcarriers to reduce the number of bits having low reliability when a transmitting side uses repetition coding. Also, it is possible to improve decoding throughput and obtain channel diversity.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: March 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Seung Hee Han, Hyun Woo Lee, Sung Ho Moon, Jin Sam Kwak, Dong Cheol Kim, Min Seok Noh
  • Method and apparatus for generating ranging preamble code in wireless communication system
    Patent number: 8391382
    Abstract: A method and apparatus of generating a ranging preamble code in a wireless communication system is provided. A mobile station (MS) receives ranging channel information, and generates the ranging preamble code by selecting one of a plurality of candidate ranging preamble codes based on the ranging channel information. The plurality of candidate ranging preamble codes are based on a Zadoff-Chu (ZC) sequence of which a length is NRP and a root index is rp, and The ranging channel information comprises at least one of a start root index r0 among root indices of the plurality of candidate ranging preamble codes and a control parameter y indicating the start root index.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: March 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Yeong Hyeon Kwon, Han Gyu Cho, Jin Sam Kwak, Seung Hee Han
  • Method for inserting parity to frame control header
    Patent number: 8385368
    Abstract: A method for inserting parity into an FCH is disclosed. A method for inserting parity into a frame control header includes channel-encoding, by an additional channel encoder, a frame control header bit applied to a legacy encoder, and generating an additional codeword, and mapping the codeword generated by the legacy encoder and the additional codeword to subcarriers. This method inserts parity into the FCH, and defines a new FCH, such that it extends an FCH coverage simultaneously while maintaining a compatibility with a legacy system. Also, it may add additional energy to a legacy FCH or may give a coding gain to the same legacy FCH, such that it can extend information transferable using reserved bits of the FCH.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: February 26, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Min Seok Noh, Sung Ho Moon, Dong Cheol Kim, Jin Sam Kwak, Hyun Woo Lee, Seung Hee Han
  • Method and apparatus for information transmission in a radio communication system
    Patent number: 8385467
    Abstract: The present invention relates to a method and an apparatus for information transmission in a radio communication system. The method includes the steps of creating a first symbol and a second symbol relevant to information, creating a first transmission vector and a second transmission vector on the basis of Alamouti code from the first symbol and the second symbol, and transmitting the first transmission vector via a first antenna and transmitting the second transmission vector via a second antenna.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: February 26, 2013
    Assignee: LG Electronics Inc.
    Inventors: Seung Hee Han, Moon II Lee, Yeong Hyeon Kwon, Hyun Soo Ko, Ja Ho Koo, Dong Cheol Kim, Jae Hoon Chung, Sung Ho Moon, Jin Sam Kwak, Min Seok Noh, Hyun Woo Lee
  • METHOD AND APPARATUS FOR PERFORMING POWER CONTROL BY TERMINAL IN WIRELESS COMMUNICATION SYSTEM USING MULTIPLE CARRIERS
    Publication number: 20130044662
    Abstract: The present invention relates to a terminal in a wireless communication system that supports multiple carriers, the terminal comprising: a receiving module that receives, from a base station, control information which indicates whether to operate hybrid automatic repeat request (HARQ) process-based multiple carriers; and a process that controls to allow the multiple carriers to be received in a section at which a particular HARQ process indicated in the control information is activated.
    Type: Application
    Filed: November 15, 2010
    Publication date: February 21, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Yeong Hyeon Kwon, So Yeon Kim, Sung Ho Moon, Jae Hoon Chung, Seung Hee Han
  • Direct Communication Between Devices
    Publication number: 20130039324
    Abstract: The present invention relates to a wireless communication system, More specifically, the present invention relates to a method and an apparatus for direct communication between terminals. The method for performing communication between terminals using a first terminal in a wireless communication system comprises the steps of: transmitting request information for communication between terminals to a base station; receiving, from the base station, control information necessary for setting a link for communication between the terminals after transmitting the request information; setting a direct link between the terminals for data flow between the first and second terminals using the control information; and the first and second terminals performing communication for data transmission using the direct link between the terminals when the control information is not transmitted from the base station.
    Type: Application
    Filed: April 25, 2011
    Publication date: February 14, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Yeong Hyeon Kwon, Ji Woong Jang, Hyun Woo Lee, Han Gyu Cho
  • Method for setting cyclic shift considering frequency offset
    Patent number: 8374281
    Abstract: A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)—applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: February 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Min Seok Noh, Yeong Hyeon Kwon, Seung Hee Han, Dong Cheol Kim, Jin Sam Kwak, Dragan Vujcic
  • UPLINK SIGNAL TRANSMISSION METHOD USING CONTENTION-BASED IDENTIFIERS
    Publication number: 20130034071
    Abstract: The present invention discloses various methods and apparatuses for allocating identifiers and resources associated with a contention-based uplink channel and using the identifiers and resources. An uplink (UL) signal transmission method using a contention-based identifier (CB identifier) according to one embodiment of the present invention comprises a step in which user equipment receives, from a base station, a first message containing a CD identifier (CB-RNTI); a step in which the user equipment receives, from the base station, a second message containing information on the allocation of the contention-based uplink (CB UL) channel associated with the CB identifier; and a step in which the user equipment transmits an UL signal to the base station via the CB UL channel.
    Type: Application
    Filed: April 28, 2011
    Publication date: February 7, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Hyun Woo Lee, Ji Woong Jang, Yeong Hyeon Kwon
  • METHOD AND APPARATUS FOR DIRECT COMMUNICATIONS IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20130029675
    Abstract: The present invention relates to a method and apparatus for direction communications in a wireless communication system. In the direct communication support method of a wireless communication system, according to one embodiment of the present invention, when a base station receives a direct communication request message from a first terminal to request a direct communication with a second terminal without going through the base station, the base station then allocates resources to be used for the direct communication and transmits resource allocation information to the first and second terminals.
    Type: Application
    Filed: June 15, 2010
    Publication date: January 31, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Yeong Hyeon Kwon, Han Gyu Cho, Ji Woong Jang, Hyun Woo Lee
  • COMMUNICATION METHOD BETWEEN TERMINALS, AND TERMINAL
    Publication number: 20130029713
    Abstract: According to the present invention, a source MS, determining initiation of M2M communication or receiving a request for initiating M2M communication from a BS, receives a reference signal for channel quality measurement of a neighboring MS, and the channel quality of the source MS and the neighboring MS is measured by using the reference signal; and information representing the channel quality is transmitted to the BS. Or, the neighboring MS receives a reference signal for channel quality measurement transmitted by the source MS, a channel quality of the source MS and the neighboring MS is measured by using the reference signal, and information representing the channel quality is transmitted to the BS. The BS determines a partner MS for M2M communication with the MS on the basis of a channel quality between the source MS and the neighboring MS.
    Type: Application
    Filed: February 18, 2011
    Publication date: January 31, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Ji Woong Jang, Han Gyu Cho, Yeong Hyeon Kwon, Hyun Woo Lee