| Patent | Date |
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Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof
Grant 9,867,166 - Hwang , et al. January 9, 2 | 2018-01-09 |
Method and system of distributed sensing for reducing spectrum sensing overhead in cognitive wireless multi-hop networks
Grant 9,635,561 - Cheon , et al. April 25, 2 | 2017-04-25 |
Method of frequency channel assignment using effective spectrum sensing in multiple frequency assignment system
Grant 9,332,440 - Kang , et al. May 3, 2 | 2016-05-03 |
Method for identifying OFDM communication signal using OFDM symbol estimation
Grant 9,294,327 - Kim , et al. March 22, 2 | 2016-03-22 |
Transmission power control method and device for cognitive radio device
Grant 9,215,661 - Hwang , et al. December 15, 2 | 2015-12-15 |
Apparatus and method for controlling subcarrier spacing in a wireless communication system
Grant 9,210,712 - Hwang , et al. December 8, 2 | 2015-12-08 |
Method And System Of Distributed Sensing For Reducing Spectrum Sensing Overhead In Cognitive Wireless Multi-hop Networks
App 20150223187 - CHEON; Kyung Yul ; et al. | 2015-08-06 |
Method And Apparatus Of Retransmission Based On Soft Combining In Contention Based Access System
App 20150207593 - CHEON; Kyung Yul ; et al. | 2015-07-23 |
Communication method using a preamble to share characteristic information, method for generating the preamble, and communication system to which the methods are applied
Grant 8,995,409 - Um , et al. March 31, 2 | 2015-03-31 |
Radio Access Method For Reducing Routing Overhead In Cognitive Radio Adhoc Networks
App 20150085846 - LEE; Cheolhyo ; et al. | 2015-03-26 |
Method and device for transmitting a preamble in a wireless communication system
Grant 8,964,886 - Um , et al. February 24, 2 | 2015-02-24 |
Hybrid beaconing method
Grant 8,964,640 - Ko , et al. February 24, 2 | 2015-02-24 |
Method Of Generating Pilot Pattern For Adaptive Channel Estimation In Ofdma Systems, Method Of Transmitting/receiving Using The Pilot Pattern And Apparatus Thereof
App 20140376493 - HWANG; Sung-Hyun ; et al. | 2014-12-25 |
Method And Apparatus For Dynamic Channel Management In Radio System Supporting Multiple Channels
App 20140362685 - KIM; Chang-Joo | 2014-12-11 |
Method and device for evaluating influence of electromagnetic waves of base station on human body
Grant 8,886,129 - Kim , et al. November 11, 2 | 2014-11-11 |
Method For Identifying Ofdm Communication Signal Using Ofdm Symbol Estimation
App 20140314165 - KIM; Hyung Jung ; et al. | 2014-10-23 |
Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof
Grant 8,861,551 - Hwang , et al. October 14, 2 | 2014-10-14 |
Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof
Grant 8,855,144 - Hwang , et al. October 7, 2 | 2014-10-07 |
Method and device for communication between devices with different transmission coverage
Grant 8,787,271 - Um , et al. July 22, 2 | 2014-07-22 |
Method and apparatus of hybrid burst mapping in OFDMA systems
Grant 8,693,410 - Hwang , et al. April 8, 2 | 2014-04-08 |
Method for sensing spectrum and arranging quiet period in cognitive radio system, customer premise equipment, base station and superframe structure using the same
Grant 8,675,594 - Kang , et al. March 18, 2 | 2014-03-18 |
Reserving resources in centralized network by scanning superframes equal to or greater than maximum number of superframes allowed without listening to beacon period
Grant 8,661,143 - Lee , et al. February 25, 2 | 2014-02-25 |
Shaped-beam antenna with multi-layered metallic disk array structure surrounded by dielectric ring
Grant 8,654,011 - Eom , et al. February 18, 2 | 2014-02-18 |
Method and apparatus for detecting signal using cyclo-stationary characterisitics
Grant 8,639,736 - Lim , et al. January 28, 2 | 2014-01-28 |
Loop antenna
Grant 08618993 - | 2013-12-31 |
Loop antenna
Grant 8,618,993 - Yun , et al. December 31, 2 | 2013-12-31 |
Channel switching apparatus and method of a base station and channel switching apparatus and method of a terminal based on the cognitive radio system
Grant 8,619,699 - Ko , et al. December 31, 2 | 2013-12-31 |
Image reconstruction apparatus and method for reconstructing image of microwave tomography thereof
Grant 8,600,140 - Jeon , et al. December 3, 2 | 2013-12-03 |
Relay station for cell information exchange between adjacent BSs over air links in cellular systems
Grant 8,600,418 - Ko , et al. December 3, 2 | 2013-12-03 |
Method And Device For Transmitting A Preamble In A Wireless Communication System
App 20130315342 - Um; Jung Sun ; et al. | 2013-11-28 |
Network communication method and network device using preamble
Grant 8,488,526 - Hwang , et al. July 16, 2 | 2013-07-16 |
Method And Device For Selecting Antenna In Multi- Antenna System
App 20130177098 - Jung; Hoi Yoon ; et al. | 2013-07-11 |
Apparatus And Method For Controlling Subcarrier Spacing In A Wireless Communication System
App 20130170464 - Hwang; Sung Hyun ; et al. | 2013-07-04 |
Method for using flexible bandwidth in OFDMA-based cognitive radio system, base station and subscriber station using the same
Grant 8,477,799 - Hwang , et al. July 2, 2 | 2013-07-02 |
System And Method For Managing Resources In A Communication System
App 20130165136 - Kang; Kyu-Min ; et al. | 2013-06-27 |
Communication Method Using A Preamble To Share Characteristic Information, Method For Generating The Preamble, And Communication System To Which The Methods Are Applied
App 20130163572 - Um; Jung Sun ; et al. | 2013-06-27 |
Apparatus and method for measuring antenna radiation patterns
Grant 8,471,774 - Oh , et al. June 25, 2 | 2013-06-25 |
Method And Device For Evaluating Influence Of Electromagnetic Waves Of Base Station On Human Body
App 20130065536 - Kim; Byung Chan ; et al. | 2013-03-14 |
Method and apparatus for radio propagation modeling using ray-tracing method
Grant 8,386,215 - Kim , et al. February 26, 2 | 2013-02-26 |
Probe and antenna using waveguide
Grant 8,373,611 - Oh , et al. February 12, 2 | 2013-02-12 |
Method Of Frequency Channel Assignment Using Effective Spectrum Sensing In Multiple Frequency Assignment System
App 20120307782 - KANG; Bub Joo ; et al. | 2012-12-06 |
Apparatus and method for communication in cognitive radio network
Grant 8,326,336 - Um , et al. December 4, 2 | 2012-12-04 |
Multi-mode antenna and method of controlling mode of the antenna
Grant 8,279,132 - Jung , et al. October 2, 2 | 2012-10-02 |
Method of frequency channel assignment using effective spectrum sensing in multiple frequency assignment system
Grant 8,279,767 - Kang , et al. October 2, 2 | 2012-10-02 |
Method And System For Reducing Radiation Field In Wireless Transmission System
App 20120161542 - KIM; Seong-Min ; et al. | 2012-06-28 |
Image Reconstruction Apparatus And Method For Reconstructing Image Of Microwave Tomography Thereof
App 20120163727 - JEON; Soon-Ik ; et al. | 2012-06-28 |
All-in-one Multi-band Antenna For Wireless Communication System
App 20120162035 - JUNG; Young-Bae ; et al. | 2012-06-28 |
Transmission Power Control Method And Device For Cognitive Radio Device
App 20120100883 - Hwang; Sung-Hyun ; et al. | 2012-04-26 |
Electromagnetic absorber using resistive material
Grant 8,164,506 - Sim , et al. April 24, 2 | 2012-04-24 |
Isolation antenna for repeater
Grant 8,159,412 - Yun , et al. April 17, 2 | 2012-04-17 |
Antenna system for tracking satellite
Grant 8,120,541 - Jung , et al. February 21, 2 | 2012-02-21 |
Method For Reserving Resources On A Centralized Network
App 20110289175 - Lee; Moon-Won ; et al. | 2011-11-24 |
Channel Sensing Scheme Using Natural Quiet Period In Cognitive Radio System
App 20110249589 - Ko; Gwangzeen ; et al. | 2011-10-13 |
Hybrid Beaconing Method
App 20110243089 - Ko; Gwangzeen ; et al. | 2011-10-06 |
Method for managing multiple frequency assignment using terminal's received performance in OFDMA WRAN system
Grant 8,031,667 - Kang , et al. October 4, 2 | 2011-10-04 |
Method for measuring antenna characteristics out operational frequency range of chamber
Grant 8,022,713 - Jung , et al. September 20, 2 | 2011-09-20 |
Arrangement structure of electromagnetic band-gap for suppressing noise and improving signal integrity
Grant 8,004,369 - Kwon , et al. August 23, 2 | 2011-08-23 |
Method for evaluating spectrum utilization efficiency in radio system sharing frequency
Grant 7,990,914 - Kang , et al. August 2, 2 | 2011-08-02 |
Cable to waveguide transition apparatus having signal accumulation form of backshort and active phase shifting using the same
Grant 7,978,022 - Seong , et al. July 12, 2 | 2011-07-12 |
Apparatus And Method Of Transmitting And Receiving Data For Improving Transmission Rate
App 20110167321 - Hwang; Sung-Hyun ; et al. | 2011-07-07 |
Small monopole antenna having loop element included feeder
Grant 7,969,371 - Yun , et al. June 28, 2 | 2011-06-28 |
Method And Device For Communication Between Devices With Different Transmission Coverage
App 20110149889 - UM; Jung Sun ; et al. | 2011-06-23 |
Antenna With Controlled Sidelobe Characteristics
App 20110148706 - EOM; Soon-Young ; et al. | 2011-06-23 |
Method And Apparatus For Transmitting And Receiving Data Using Frequency Diversity Scheme
App 20110129026 - UM; Jung-Sun ; et al. | 2011-06-02 |
Method Of Generating Pilot Pattern For Adaptive Channel Estimation In Ofdma Systems, Method Of Transmitting/receiving Using The Pilot Pattern And Apparatus Thereof
App 20110116411 - HWANG; Sung-Hyun ; et al. | 2011-05-19 |
Method Of Generating Pilot Pattern For Adaptive Channel Estimation In Ofdma Systems, Method Of Transmitting/receiving Using The Pilot Pattern And Apparatus Thereof
App 20110116516 - HWANG; Sung-Hyun ; et al. | 2011-05-19 |
Circular polarized helical radiation element and its array antenna operable in TX/RX band
Grant 7,944,404 - Yun , et al. May 17, 2 | 2011-05-17 |
Contention-based Data Communication Apparatus And Method
App 20110103320 - YOU; Sung-jin ; et al. | 2011-05-05 |
Rotor Blade For Rotary Wing Aircraft Having Deformable Protrusions To Reduce Blade Vortex Interaction Noise
App 20110058955 - Jung; Sung Nam ; et al. | 2011-03-10 |
Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof
Grant 7,903,691 - Hwang , et al. March 8, 2 | 2011-03-08 |
Apparatus And Method For Communication In Cognitive Radio Network
App 20110045862 - UM; Jung-Sun ; et al. | 2011-02-24 |
Antenna system for tracking mobile satellite and carrier having the same
Grant 7,893,885 - Jung , et al. February 22, 2 | 2011-02-22 |
Ultra isolation antenna
Grant 7,868,837 - Yun , et al. January 11, 2 | 2011-01-11 |
Channel Switching Apparatus And Method Of A Base Station And Channel Switching Apparatus And Method Of A Terminal Based On The Cognitive Radio System
App 20100290416 - Ko; Gwangzeen ; et al. | 2010-11-18 |
Handshaking Method, And Transmission Power Determining Method And Apparatus Thereof For Parallel Transmission Of Multiple Streams In Single Radio Channel
App 20100284355 - Jung; Kiung ; et al. | 2010-11-11 |
Path Loss Calculation Method Using Reflection Path As Dominant Path
App 20100286953 - Kim; Jongho ; et al. | 2010-11-11 |
Method Of Managing Multiple Channels In Single Network And Network Management Device
App 20100272039 - Um; Jung-Sun ; et al. | 2010-10-28 |
Beacon Re-broadcasting Apparatus, Beacon Re-broadcasting Method, And Initial Access Request Method In Wireless Network
App 20100265871 - Ko; Gwangzeen ; et al. | 2010-10-21 |
Network Communication Method And Network Device Using Preamble
App 20100260106 - Hwang; Sung-Hyun ; et al. | 2010-10-14 |
Apparatus and method for predicting wave propagation characteristic of multiple antenna system
Grant 7,809,524 - Son , et al. October 5, 2 | 2010-10-05 |
Method And Apparatus For Radio Propagation Modeling Using Ray-tracing Method
App 20100250221 - Kim; Jong Ho ; et al. | 2010-09-30 |
System and Method for Receiving Antenna Measuring Signal and System for Measuring Antenna
App 20100238077 - Cho; In Kui ; et al. | 2010-09-23 |
Double-ridged Horn Antenna Having Higher-order Mode Suppressor
App 20100238086 - Moon; Jung-Ick ; et al. | 2010-09-23 |
Apparatus and Method for Measuring Antenna Radiation Patterns
App 20100207827 - Oh; Soon-Soo ; et al. | 2010-08-19 |
Method And Apparatus For Detecting Signal Using Cyclo-stationary Characterisitics
App 20100205234 - Lim; Sunmin ; et al. | 2010-08-12 |
Method And Apparatus Of Hybrid Burst Mapping In Ofdma Systems
App 20100202401 - Hwang; Sung-Hyun ; et al. | 2010-08-12 |
Comb polarizer suitable for millimeter band applications
Grant 7,768,362 - Eom , et al. August 3, 2 | 2010-08-03 |
Method For Managing Multiple Frequency Assignment Using Terminal's Received Performance In Ofdma Wran System
App 20100177645 - Kang; Bub-Joo ; et al. | 2010-07-15 |
Resource Allocation Method For Orthogonal Frequency Division Multiplexing Access System
App 20100172316 - Hwang; Sung-Hyun ; et al. | 2010-07-08 |
Electromagnetic Absorber Using Resistive Material
App 20100156695 - SIM; Dong-Uk ; et al. | 2010-06-24 |
Arrangement Structure Of Electromagnetic Band-gap For Suppressing Noise And Improving Signal Integrity
App 20100156523 - KWON; Jong Hwa ; et al. | 2010-06-24 |
Probe And Antenna Using Waveguide
App 20100134370 - Oh; Soon-Soo ; et al. | 2010-06-03 |
Method And Apparatus Of Generating Signals For Initial Ranging In Ofdma System
App 20100111017 - Um; Jung-Sun ; et al. | 2010-05-06 |
Apparatus For Measuring Antenna Radiation Performance And Method Of Designing The Same
App 20100109957 - MOON; Jung-Ick ; et al. | 2010-05-06 |
Shaped-beam Antenna With Multi-layered Metallic Disk Array Structure Surrounded By Dielectric Ring
App 20100109964 - Eom; Soon-Young ; et al. | 2010-05-06 |
RELAY STATION FOR CELL INFORMATION EXCHANGE BETWEEN ADJACENT BSs OVER AIR LINKS IN CELLULAR SYSTEMS
App 20100087216 - KO; Gwangzeen ; et al. | 2010-04-08 |
Tranceiver And Transceiving Method In Uwb System For Frequency Sharing
App 20100069125 - Yoon; Young-Keun ; et al. | 2010-03-18 |
Method For Measuring Antenna Characteristics Out Of Operational Frequency Range Of Chamber
App 20100039334 - Jung; Young-Bae ; et al. | 2010-02-18 |
Method Of And Apparatus For Allocating Sub-channels In Orthogonal Frequency Division Multiple Access (ofdma) System
App 20100040080 - Um; Jung-Sun ; et al. | 2010-02-18 |
Method Of Analyzing Reflection Waves Using Effective Impedance
App 20100010760 - Kim; Jong Ho ; et al. | 2010-01-14 |
Loop Antenna
App 20090322634 - Yun; Je-Hoon ; et al. | 2009-12-31 |
Small Monopole Antenna Having Loop Element Included Feeder
App 20090322633 - Yun; Je-Hoon ; et al. | 2009-12-31 |
Method Of Generating Pilot Pattern For Adaptive Channel Estimation In Ofdma Systems, Method Of Transmitting/receiving Using The Pilot Pattern And Apparatus Thereof
App 20090274174 - Hwang; Sung-Hyun ; et al. | 2009-11-05 |
Ultra Isolation Antenna
App 20090267849 - Yun; Je-hoon ; et al. | 2009-10-29 |
Apparatus and method for reducing electromagnetic waves
App 20090237323 - Kwak; Sang il ; et al. | 2009-09-24 |
Cable to waveguide transition apparatus having signal accumulation form of backshort and active phase shifting using the same
App 20090219116 - Seong; Nak-Seon ; et al. | 2009-09-03 |
Method For Switching And Managing Frequency Access In Cognitive Radio System, Base Station And Subscriber Station Using The Same
App 20090219909 - Ko; Gwangzeen ; et al. | 2009-09-03 |
Isolation Antenna For Repeater
App 20090213021 - Yun; Je-hoon ; et al. | 2009-08-27 |
Method, Apparatus For Dynamic Resource Allocation Method In Ofdma-based Cognitive Radio System And Forward Link Frame Structure Thereof
App 20090190537 - Hwang; Sung Hyun ; et al. | 2009-07-30 |
Method Of Frequency Channel Assignment Using Effective Spectrum Sensing In Multiple Frequency Assignment System
App 20090161610 - Kang; Bub Joo ; et al. | 2009-06-25 |
Method For Evaluating Spectrum Utilization Efficiency In Radio System Sharing Frequency
App 20090154409 - KANG; Hyunduk ; et al. | 2009-06-18 |
Method For Using Flexible Bandwidth In Ofdma-based Cognitive Radio System, Base Station And Subscriber Station Using The Same
App 20090135713 - Hwang; Sung Hyun ; et al. | 2009-05-28 |
Method for generating two-dimensional orthogonal variable spreading code and MIMO system using the same
Grant 7,535,821 - Son , et al. May 19, 2 | 2009-05-19 |
Apparatus And Method For Predicting Wave Propagation Characteristic Of Multiple Antenna System
App 20090102730 - Son; Ho-Kyung ; et al. | 2009-04-23 |
Inverted L-shaped antenna
Grant 7,518,559 - Yun , et al. April 14, 2 | 2009-04-14 |
Method for deciding array spacing of array antenna by using genetic algorithm and array antenna having sofa structure with irregular array spacing
Grant 7,502,764 - Son , et al. March 10, 2 | 2009-03-10 |
Multi-satellite access antenna system
Grant 7,492,322 - Jung , et al. February 17, 2 | 2009-02-17 |
Antenna Device And Method Of Operating The Same
App 20090027288 - LEE; Jong Moon ; et al. | 2009-01-29 |
Method For Sensing Spectrum And Arranging Quiet Period In Cognitive Radio System, Customer Premise Equipment, Base Station And Superframe Structure Using The Same
App 20090016293 - Kang; Bub-Joo ; et al. | 2009-01-15 |
Method For Deciding Array Spacing Of Array Antenna By Using Genetic Algorithm And Array Antenna Having Sofa Structure With Irregular Array Spacing
App 20090012768 - Son; Seong-Ho ; et al. | 2009-01-08 |
Antenna System for Tracking Satellite
App 20080297427 - Jung; Young-Bae ; et al. | 2008-12-04 |
Antenna System for Tracking Mobile Satellite and Carrier Having the Same
App 20080297426 - Jung; Young-Bae ; et al. | 2008-12-04 |
Method for Exchanging Mileage for Game Money and Method and Apparatus for Game Service in an Airplane
App 20080215423 - Kim; Chang-Joo | 2008-09-04 |
Method for controlling power level based on packet error rate in wireless personal area network system
Grant 7,400,899 - Shin , et al. July 15, 2 | 2008-07-15 |
Comb Polarizer Suitable For Millimeter Band Applications
App 20080117005 - EOM; Soon-Young ; et al. | 2008-05-22 |
Method for seamless inter-frequency hard handover in radio communication system
Grant 7,376,424 - Kim , et al. May 20, 2 | 2008-05-20 |
Apparatus and method for generating pulse based on time delay and wave transform and transmitter of multi-frequency band communication system using the same
Grant 7,352,807 - Lee , et al. April 1, 2 | 2008-04-01 |
High-gain radiating element structure using multilayered metallic disk array
Grant 7,307,587 - Eom , et al. December 11, 2 | 2007-12-11 |
Inverted L-Shaped Antenna
App 20070252772 - Yun; Je-Hoon ; et al. | 2007-11-01 |
Method for controlling power level of received signal in ultra wide band transmission system
Grant 7,260,374 - Lee , et al. August 21, 2 | 2007-08-21 |
Method for Seamless Inter-Frequency Hard Handover in Radio Communication System
App 20070129075 - Kim; Il-Gyu ; et al. | 2007-06-07 |
Horn antenna for circular polarization using planar radiator
Grant 7,212,162 - Jung , et al. May 1, 2 | 2007-05-01 |
Method for performing handover based compressed mode and common frequency of neighbor cells
Grant 7,190,944 - Kim , et al. March 13, 2 | 2007-03-13 |
Microstrip patch antenna having high gain and wideband
Grant 7,099,686 - Ro , et al. August 29, 2 | 2006-08-29 |
Method for generating two-dimensional orthogonal variable spreading code and MIMO system using the same
App 20060171294 - Son; Ho-Kyung ; et al. | 2006-08-03 |
Offset hybrid antenna using focuser
Grant 7,075,495 - Jung , et al. July 11, 2 | 2006-07-11 |
Multi-satellite access antenna system
App 20060132372 - Jung; Young-Bae ; et al. | 2006-06-22 |
Circular polarized helical radiation element and its array antenna operable in TX/RX band
App 20060119532 - Yun; Jae-Seung ; et al. | 2006-06-08 |
Microstrip patch antenna using MEMS technology
Grant 7,006,044 - Choi , et al. February 28, 2 | 2006-02-28 |
Microstrip stack patch antenna using multilayered metallic disk array and planar array antenna using the same
App 20050275590 - Eom, Soon-Young ; et al. | 2005-12-15 |
Method for designing multiband antenna using genetic algorithm device linked to full electromagnetic wave analyzing device
Grant 6,965,345 - Bae , et al. November 15, 2 | 2005-11-15 |
Offset hybrid antenna using focuser
App 20050140558 - Jung, Young-Bae ; et al. | 2005-06-30 |
Horn antenna for circular polarization using planar radiator
App 20050110695 - Jung, Young-Bae ; et al. | 2005-05-26 |
Microstrip patch antenna using MEMS technology
App 20050104778 - Choi, Won-Kyu ; et al. | 2005-05-19 |
Method for controlling power level based on packet error rate in wireless personal area network system
App 20050097409 - Shin, Cheol-Ho ; et al. | 2005-05-05 |
Method for designing multiband antenna using genetic algorithm device linked to full electromagnetic wave analyzing device
App 20050088343 - Bae, Ji-Hoon ; et al. | 2005-04-28 |
Microstrip patch antenna having high gain and wideband
App 20050054317 - Ro, Haeng-Sook ; et al. | 2005-03-10 |
Method for controlling power level of received signal in ultra wide band transmission system
App 20050009490 - Lee, Hyung-Soo ; et al. | 2005-01-13 |
Apparatus and method for generating pulse based on time delay and wave transform and transmitter of multi-frequency band communication system using the same
App 20040233982 - Lee, Seung-Sik ; et al. | 2004-11-25 |
Method for seamless inter-frequency hard handover in radio communication system
App 20040053614 - Il-Gyu, Kim ; et al. | 2004-03-18 |
Method for performing handover based compressed mode and common frequency of neighbor cells
App 20040053615 - Kim, Il-Gyu ; et al. | 2004-03-18 |
High conductivity copper alloy for semi-solid forming and manufacturing method thereof
App 20030209299 - Lee, Sang-Yong ; et al. | 2003-11-13 |
Improvement of surface property of tip and nozzle for gas welder made of copper and copper alloys by chemical conversion coating treatment
Grant 5,618,456 - Kim April 8, 1 | 1997-04-08 |
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