Patents by Inventor Byung Su Kang

Byung Su Kang 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: 20190240578
    Abstract: An apparatus for controlling an object may include a communicator configured to communicate with a first user terminal and a second user terminal, and a processor configured to control a first object corresponding to a first user in a virtual world to be displayed, configured to control the first object to move in the virtual world in response to a movement control of the first user, configured to randomly select at least one candidate object in response to a morphing control of the first user, and configured to change the first object to a second object when the first user selects the second object from the at least one candidate object. Methods for controlling an object are also provided.
    Type: Application
    Filed: April 19, 2019
    Publication date: August 8, 2019
    Inventors: Jung Kyu YE, Geon Yeong KIM, Chang Hoon YI, Joo Seok LEE, Guhyun PARK, Young Suk KIM, Jae Hyun PARK, June Sik YI, Hun Joon HA, Nak Hyun KIM, Ho Sik KIM, Jeong Min SEO, Tae Hoon KOO, Duc Chun KIM, Seoung Hwi JUNG, Byung Eun JIN, Jin Woo LEE, Seok Hyun KIM, Ju Yong LIM, Hyun Ju CHO, Sang Yeop LEE, Min Kwan CHAE, Sang Ho KIM, Hee Seok KANG, Seongkwan LEE, Jeong Pyo HONG, Choong Yeol LEE, Yong Woo PARK, Kyoung Su LEE, Yu Ju KIM, Dong Gook LEE, Hyun Jin KIM, Hyun Jeong LEE, Dong Young CHANG, Jong Min LEE, Jin Woo LEE, Song I HAN, Taek Ki LEE, Eun Ji NAM, Choon Hwa LEE, Young Min KANG, Jung Soo LEE
  • Patent number: 10315112
    Abstract: An apparatus for controlling an object may include a communicator configured to communicate with a first user terminal and a second user terminal, and a processor configured to control a first object corresponding to a first user in a virtual world to be displayed, configured to control the first object to move in the virtual world in response to a movement control of the first user, configured to randomly select at least one candidate object in response to a morphing control of the first user, and configured to change the first object to a second object when the first user selects the second object from the at least one candidate object. Methods for controlling an object are also provided.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: June 11, 2019
    Assignee: Nexon Korea Corporation
    Inventors: Jung Kyu Ye, Geon Yeong Kim, Chang Hoon Yi, Joo Seok Lee, Guhyun Park, Young Suk Kim, Jae Hyun Park, June Sik Yi, Hun Joon Ha, Nak Hyun Kim, Ho Sik Kim, Jeong Min Seo, Tae Hoon Koo, Duc Chun Kim, Seoung Hwi Jung, Byung Eun Jin, Jin Woo Lee, Seok Hyun Kim, Ju Yong Lim, Hyun Ju Cho, Sang Yeop Lee, Min Kwan Chae, Sang Ho Kim, Hee Seok Kang, Seongkwan Lee, Jeong Pyo Hong, Choong Yeol Lee, Yong Woo Park, Kyoung Su Lee, Yu Ju Kim, Dong Gook Lee, Hyun Jin Kim, Hyun Jeong Lee, Dong Young Chang, Jong Min Lee, Jin Woo Lee, Song I Han, Taek Ki Lee, Eun Ji Nam, Choon Hwa Lee, Young Min Kang, Jung Soo Lee
  • Patent number: 10311319
    Abstract: Provided is a technology for recognizing vehicle license plate information which includes detecting a position of a license plate from a vehicle image obtained by imaging a vehicle, extracting individual character images by separating a plurality of characters from a region of the detected license plate in the vehicle image and extracting a license plate type of the license plate according to a predetermined criterion, recognizing a license plate character string on the basis of the extracted individual character images and the license plate type and outputting the recognized license plate character string.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: June 4, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Pyong Kun Kim, Hyun Woo Kang, Kwang Ju Kim, Jong Taek Lee, Kil Taek Lim, Yun Su Chung, Byung Gil Han
  • Publication number: 20190097711
    Abstract: A device for estimating frequency offsets which is performed by periodically transmitting training signals from a wireless local area network system. The device includes a processor and computerized codes stored in a storage unit. The processor is configured to execute the computerized code to perform a method. The method comprises receiving the plurality of training signals, selecting selected training signals by a predetermined interval from the received training signals, detecting and storing phases of the selected training signals, averaging phase differences of every pair of the detected phases of the selected training signals, calculating the frequency offsets according to an average of the phase differences for every pair of the detected phases of the selected training signals, and calculating a weighted average of the calculated frequency offsets using weighting values for each of the calculated frequency offsets.
    Type: Application
    Filed: September 27, 2018
    Publication date: March 28, 2019
    Inventor: Byung Su KANG
  • Patent number: 9807775
    Abstract: A terminal for performing device-to-device (D2D) communication, according to an embodiment of the present invention, includes an antenna configured to transmit/receive an uplink channel signal and a downlink channel signal, a duplexer configured to separate a transmission/reception signal of the antenna into the uplink channel signal and the downlink channel signal, a switch configured to switch the uplink channel signal in a time division duplex (TDD) scheme so as to separate the uplink channel signal into an uplink transmission block and a first reception block, and a second reception block configured to convert the downlink channel signal provided from the duplexer into a baseband.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: October 31, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Heon Kook Kwon, Byung Su Kang, Kwangchun Lee
  • Patent number: 9799962
    Abstract: Provided is a dual-polarized dipole antenna. The dual-polarized dipole antenna includes a substrate etched as first and second microstrip lines and provided in a cube, first to fourth feeding lines etched as third microstrip lines and disposed in a square type in a vertical direction to the substrate, and first to fourth radiation patches disposed in a square type in the vertical direction to the first to fourth feeding unit, wherein the first to fourth feeding units are respectively disposed on adjacent pairs of the first to fourth radiation patches. According to the present invention, a miniature dual-polarized dipole antenna having a wide bandwidth, high isolation characteristics, and a high gain can be provided.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: October 24, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jung Nam Lee, Kwangchun Lee, Gweon Do Jo, Heon Kook Kwon, Byung Su Kang, Jung Hoon Oh
  • Patent number: 9692627
    Abstract: A method for reducing a PAPR of an OFDM signal and an OFDM transmitter using the same are disclosed. In an OFDM transmitter, a signal processing circuit for reducing a PAPR of a modulated signal includes: a peak detector configured to detect peaks having sizes above a threshold value from an IQ baseband signal of the modulated signal and to output information on a position, a size and a phase; a memory configured to store a reference peak in time domain; a peak generator configured to generate an inverse peak signal for canceling a part of an amplitude of the IQ baseband signal from the reference peak based on the information on the position, the size and the phase; and a signal processing unit configured to add the inverse peak signal to the IQ baseband signal to constrain the amplitude of the IQ baseband signal.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: June 27, 2017
    Assignee: FCI INC.
    Inventors: Byung Su Kang, Ki Hyun Kim
  • Patent number: 9660667
    Abstract: Disclosed are a method and apparatus for compressing/decompressing data using floating points. As technology for compressing/decompressing data using floating points for efficient memory management, there are provided a method and apparatus for compressing/decompressing data using floating points, in which a log table is used to compress/decompress data, whereby not only data loss caused by compression/decompression can be minimized, but also degradation of performance can be prevented through a floating point representation even though the same number of bits are used for compression.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: May 23, 2017
    Assignee: FCI INC
    Inventors: Byung Su Kang, Beom Jin Kim
  • Publication number: 20170005844
    Abstract: A method for reducing a PAPR of an OFDM signal and an OFDM transmitter using the same are disclosed. In an OFDM transmitter, a signal processing circuit for reducing a PAPR of a modulated signal includes: a peak detector configured to detect peaks having sizes above a threshold value from an IQ baseband signal of the modulated signal and to output information on a position, a size and a phase; a memory configured to store a reference peak in time domain; a peak generator configured to generate an inverse peak signal for canceling a part of an amplitude of the IQ baseband signal from the reference peak based on the information on the position, the size and the phase; and a signal processing unit configured to add the inverse peak signal to the IQ baseband signal to constrain the amplitude of the IQ baseband signal.
    Type: Application
    Filed: October 7, 2015
    Publication date: January 5, 2017
    Inventors: Byung Su KANG, Ki Hyun KIM
  • Patent number: 9136612
    Abstract: Disclosed is a front-end apparatus of an RF transceiver connected with an antenna in a wireless communication system. The front-end apparatus of an RF transceiver using radio-frequency passive elements includes: a plurality of band pass filters configured a transmission signal and a reception signal; a first circulator configured to output a first transmission signal to a second terminal and output a second reception signal input; a second circulator configured to output a second transmission signal input into the first terminal to the second terminal and output a first reception signal input into the second terminal to the third terminal; a passive directional double pole and double throw switch configured to process a route to be changed depending on directions of an input and an output; a first antenna configured to transmit the first transmission signal; and a second antenna configured to transmit the second transmission.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 15, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Heon Kook Kwon, Byung Su Kang, Jae Ho Jung
  • Publication number: 20150230258
    Abstract: A terminal for performing device-to-device (D2D) communication, according to an embodiment of the present invention, includes an antenna configured to transmit/receive an uplink channel signal and a downlink channel signal, a duplexer configured to separate a transmission/reception signal of the antenna into the uplink channel signal and the downlink channel signal, a switch configured to switch the uplink channel signal in a time division duplex (TDD) scheme so as to separate the uplink channel signal into an uplink transmission block and a first reception block, and a second reception block configured to convert the downlink channel signal provided from the duplexer into a baseband.
    Type: Application
    Filed: February 3, 2015
    Publication date: August 13, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Heon Kook KWON, Byung Su KANG, Kwangchun LEE
  • Publication number: 20150214624
    Abstract: Provided is a micro base station antenna including a substrate etched with first and second micro strip lines, a first inverted F antenna, a second inverted F antenna facing the first inverted F antenna, and an isolator provided between the first inverted F antenna and the second inverted F antenna. According to the present invention, a micro base station antenna that has a wide bandwidth, a high gain, and an enhanced isolation characteristic can be provided.
    Type: Application
    Filed: January 14, 2015
    Publication date: July 30, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Heon Kook KWON, Jung Nam LEE, Byung Su KANG, Jung Hoon OH, Kwangchun LEE
  • Publication number: 20150214634
    Abstract: Provided is a dual-polarized dipole antenna. The dual-polarized dipole antenna includes a substrate etched as first and second microstrip lines and provided in a cube, first to fourth feeding lines etched as third microstrip lines and disposed in a square type in a vertical direction to the substrate, and first to fourth radiation patches disposed in a square type in the vertical direction to the first to fourth feeding unit, wherein the first to fourth feeding units are respectively disposed on adjacent pairs of the first to fourth radiation patches. According to the present invention, a miniature dual-polarized dipole antenna having a wide bandwidth, high isolation characteristics, and a high gain can be provided.
    Type: Application
    Filed: October 20, 2014
    Publication date: July 30, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jung Nam LEE, Kwangchun LEE, Gweon Do JO, Heon Kook KWON, Byung Su KANG, Jung Hoon OH
  • Publication number: 20150180504
    Abstract: Disclosed are a method and apparatus for compressing/decompressing data using floating points. As technology for compressing/decompressing data using floating points for efficient memory management, there are provided a method and apparatus for compressing/decompressing data using floating points, in which a log table is used to compress/decompress data, whereby not only data loss caused by compression/decompression can be minimized, but also degradation of performance can be prevented through a floating point representation even though the same number of bits are used for compression.
    Type: Application
    Filed: December 22, 2014
    Publication date: June 25, 2015
    Inventors: Byung Su KANG, Beom Jin KIM
  • Patent number: 9036725
    Abstract: Disclosed is a method for adjusting FFT window of OFDM system. The method is categorized two scenarios when the maximum delay length of the channel is shorter than the guard interval length and when the maximum delay length of the channel is longer than the guard interval length. In respective scenarios, the method comprises steps: Step A, multiplying the guard interval (A1) damaged due to the path fading channel delay by a weighted value (?); Step B, multiplying the guard interval (A2) not damaged due to the path fading channel delay by a weighted value (1-?); and Step C, Adding the guard intervals of Step A and Step B together (A3) to be inputted into FFT; minimizing the inter-symbol interference, the inter-channel interference and the noise.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: May 19, 2015
    Assignee: FCI Inc.
    Inventor: Byung Su Kang
  • Patent number: 9031174
    Abstract: The present invention provides a demapping device and method. The device includes: an averager receiving a compensation data for determining a degree of the compensation; a demapping function module receiving the compensation data for demapping the compensation data and then outputting a demapped compensation data; a quantizer coupled to the averager and the demapping function module, utilized to quantize the demapped compensation data according to the degree of the compensation and a maximum of quantization; a counter coupled to the quantizer for receiving a quantized data outputted from the quantizer, utilized to count a maximum value and a minimum value within the quantized data and output a counting result, and to simultaneously provide the maximum of quantization for the quantizer; and a compressor coupled to the counter, utilized to compress the counting result to reduce a number of bits.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: May 12, 2015
    Assignee: FCI, Inc.
    Inventor: Byung Su Kang
  • Patent number: 8693572
    Abstract: The method for transmitting a signal of an orthogonal frequency division multiplexing type according to an exemplary embodiment of the present invention has a configuration allowing a radio unit (RU) to perform a component adding a compression component and a decompression component before/after a serial interface interlocking between a digital unit (DU) and the radio unit (RU) and a component inserting a cyclic prefix (CP) into a signal so as to secure orthogonality of an orthogonal frequency division multiplexing (OFDM) signal, in a structure in which a base station is physically divided into the DU and the RU.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: April 8, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gweon Do Jo, Chang Wahn Yu, Heon Kook Kwon, Byung Su Kang, Kwang Chun Lee
  • Patent number: 8521081
    Abstract: A repeating apparatus in a wireless communication system includes: a signal detection unit configured to receive a signal from a base station or a mobile station and detect strength of the signal; a control unit configured to compare the signal strength detected by the signal detection unit with signal strength predetermined by the system and provide comparison information; and an output signal control unit configured to receive the comparison information from the control unit and adjust and amplify gain of a signal transmitted to the base station or the mobile station.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: August 27, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Byung-Su Kang, Heon-Kook Kwon, Kwang-Chun Lee
  • Publication number: 20130163690
    Abstract: The method for transmitting a signal of an orthogonal frequency division multiplexing type according to an exemplary embodiment of the present invention has a configuration allowing a radio unit (RU) to perform a component adding a compression component and a decompression component before/after a serial interface interlocking between a digital unit (DU) and the radio unit (RU) and a component inserting a cyclic prefix (CP) into a signal so as to secure orthogonality of an orthogonal frequency division multiplexing (OFDM) signal, in a structure in which a base station is physically divided into the DU and the RU.
    Type: Application
    Filed: July 10, 2012
    Publication date: June 27, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Gweon Do JO, Chang Wahn YU, Heon Kook KWON, Byung Su KANG, Kwang Chun LEE
  • Publication number: 20130162495
    Abstract: Disclosed is a front-end apparatus of an RF transceiver connected with an antenna in a wireless communication system. The front-end apparatus of an RF transceiver using radio-frequency passive elements includes: a plurality of band pass filters configured a transmission signal and a reception signal; a first circulator configured to output a first transmission signal to a second terminal and output a second reception signal input; a second circulator configured to output a second transmission signal input into the first terminal to the second terminal and output a first reception signal input into the second terminal to the third terminal; a passive directional double pole and double throw switch configured to process a route to be changed depending on directions of an input and an output; a first antenna configured to transmit the first transmission signal; and a second antenna configured to transmit the second transmission.
    Type: Application
    Filed: September 14, 2012
    Publication date: June 27, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Heon Kook KWON, Byung Su KANG, Jae Ho JUNG