YU; Chang Wahn

Patent Applications and Registrations

Patent applications and USPTO patent grants for YU; Chang Wahn.The latest application filed is for "method and apparatus for transmitting and receiving signal for cooperative transmission in communication system".

Company Profile

2.30.33

YU; Chang Wahn - Daejeon KR
Yu; Chang-Wahn - Daejeon-city KR
Yu, Chang-Wahn - Daejeon-ciy KR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Method And Apparatus For Transmitting And Receiving Signal For Cooperative Transmission In Communication System App 20220150903 - LEE; Yu Ro ; et al.	2022-05-12
Method And Apparatus For Transmitting And Receiving Signal For Terminal-centric Cooperative Transmission App 20210135736 - LEE; Yu Ro ; et al.	2021-05-06
Apparatus and method for detecting synchronization and signals using block data processing Grant 10,321,426 - Yu , et al.	2019-06-11
Apparatus and method for estimating channel in wireless local area network (WLAN) system Grant 10,148,478 - Yu , et al. De	2018-12-04
Apparatus And Method For Detecting Synchronization And Signals Using Block Data Processing App 20180279245 - YU; Chang Wahn ; et al.	2018-09-27
Method For Low-power Communications In Wireless Local Area Network And Apparatus For The Same App 20150296454 - LEE; IL-GU ; et al.	2015-10-15
User Identification Method And Apparatus In Multi-user Wireless Communication System App 20150189497 - LEE; Yu Ro ; et al.	2015-07-02
Method And Apparatus For Estimating Frequency Offset In Wireless Local Area Network (wlan) System App 20150189653 - YU; Chang Wahn ; et al.	2015-07-02
Apparatus And Method For Estimating Channel In Wireless Local Area Network (wlan) System App 20150188743 - YU; Chang Wahn ; et al.	2015-07-02
Data Transmission Method And Apparatus In Network Linked With Heterogeneous System App 20150124776 - LEE; Hee Soo ; et al.	2015-05-07
Apparatus and method for controlling distortion signal and system by using the same Grant 8,767,853 - Yu , et al. July 1, 2	2014-07-01
Method for transmitting signal of orthogonal frequency division multiplexing type, and apparatus applied to the same Grant 8,693,572 - Jo , et al. April 8, 2	2014-04-08
Method and apparatus for canceling interference Grant 8,654,905 - Lee , et al. February 18, 2	2014-02-18
Method and apparatus for uplink timing synchronization with ranging signal in mobile communication system Grant 8,600,420 - Lee , et al. December 3, 2	2013-12-03
Method and apparatus for decomposing received symbol signal modulated with bit reflected gray code in bit information Grant 8,559,566 - Yu , et al. October 15, 2	2013-10-15
Apparatus And Method For Controlling Distortion Signal And System By Using The Same App 20130251055 - YU; Chang Wahn ; et al.	2013-09-26
Method For Transmitting Signal Of Orthogonal Frequency Division Multiplexing Type, And Apparatus Applied To The Same App 20130163690 - JO; Gweon Do ; et al.	2013-06-27
Method and apparatus for estimating channel in mobile communication network Grant 8,379,691 - Yu , et al. February 19, 2	2013-02-19
Signal detection method and receiver Grant 8,160,174 - Bang , et al. April 17, 2	2012-04-17
Method for preamble-based bandwidth request in wireless portable internet system Grant 8,155,104 - Yoon , et al. April 10, 2	2012-04-10
Method for detecting transmission symbols in multiple antenna system Grant 8,135,099 - Bang , et al. March 13, 2	2012-03-13
Cell search device of cellular system using OFDMA scheme and method thereof Grant 8,103,273 - Yu , et al. January 24, 2	2012-01-24
Log likelihood ratio calculation method, transmit signal detection method, and receiver Grant 8,040,980 - Bahng , et al. October 18, 2	2011-10-18
Method of calculating log-likelihood ratio and method of detecting transmission signal Grant 8,036,322 - Bahng , et al. October 11, 2	2011-10-11
Method And Apparatus For Decomposing Received Symbol Signal Modulated With Bit Reflected Gray Code In Bit Information App 20110103521 - YU; Chang Wahn ; et al.	2011-05-05
Method of detecting space-time code in mobile communication system with 4 Tx antenna Grant 7,899,138 - Bang , et al. March 1, 2	2011-03-01
Apparatus and method for generating ranging pseudo noise code Grant 7,817,707 - Sohn , et al. October 19, 2	2010-10-19
Cell Search Device Of Cellular System Using Ofdma Scheme And Method Thereof App 20100216459 - Yu; Chang-Wahn ; et al.	2010-08-26
Apparatus and method for acquiring frame timing in communication system Grant 7,782,989 - Bahng , et al. August 24, 2	2010-08-24
Apparatus and method for estimating frequency offset Grant 7,742,391 - Yu , et al. June 22, 2	2010-06-22
Signal Detection Method And Receiver App 20100135438 - BANG; Young Jo ; et al.	2010-06-03
Uplink Tile Index Generation Apparatus And A Uplink Subchannel Allocation Apparatus Of An Ofdma System App 20090225704 - Lee; Young-Ha ; et al.	2009-09-10
Method And Apparatus For Estimating Channel In Mobile Communication Network App 20090154540 - YU; Chang Wahn ; et al.	2009-06-18
Method And Apparatus For Canceling Interference App 20090147892 - LEE; Hoon ; et al.	2009-06-11
Method For Detecting Transmission Symbols In Multiple Antenna System App 20090147894 - BANG; Young Jo ; et al.	2009-06-11
Method Of Calculating Log-likelihood Ratio And Method Of Detecting Transmission Signal App 20090135964 - Bahng; Seung Jae ; et al.	2009-05-28
Apparatus and method for processing ranging channel in orthogonal frequency division multiple access system Grant 7,515,641 - Yu , et al. April 7, 2	2009-04-07
Log Likelihood Ratio Calculation Method, Transmit Signal Detection Method, And Receiver App 20090052593 - BAHNG; Seung Jae ; et al.	2009-02-26
Smart antenna beamforming device in communication system and method thereof Grant 7,477,190 - Bang , et al. January 13, 2	2009-01-13
Method and Apparatus for Uplink Timing Synchronization with Ranging Signal in Mobile Communication System App 20080305804 - Lee; Young-Ha ; et al.	2008-12-11
Uplink channel estimation system for orthogonal frequency division multiple access system and method thereof Grant 7,428,267 - Lee , et al. September 23, 2	2008-09-23
Apparatus and Method for Generating Ranging Pseudo Noise Code App 20080170632 - Sohn; Kyung-Yeol ; et al.	2008-07-17
METHOD OF DETECTING SPACE-TIME CODE IN MOBILE COMMUNICATION SYSTEM WITH 4 Tx ANTENNA App 20080137781 - Bang; Young-Jo ; et al.	2008-06-12
Method for Preamble-Based Bandwidth Request in Wireless Portable Internet System App 20070274265 - Yoon; Chul-Sik ; et al.	2007-11-29
Automatic gain control device and method in orthogonal frequency division multiplexing system with DC offset compensation function, and recording medium storing program containing the method Grant 7,302,022 - Kim , et al. November 27, 2	2007-11-27
Smart antenna beamforming device in communication system and method thereof App 20070164902 - Bang; Young-Jo ; et al.	2007-07-19
Apparatus and method for estimating frequency offset App 20070147225 - Yu; Chang-Wahn ; et al.	2007-06-28
Apparatus and method for acquiring frame timing in communication system App 20070133728 - Bahng; Seung-Jae ; et al.	2007-06-14
Apparatus and method for multi-path search using dual code generators Grant 7,126,925 - Kim , et al. October 24, 2	2006-10-24
Uplink channel estimation system for orthogonal frequency division multiple access system and method thereof App 20050141626 - Lee, Young-Ha ; et al.	2005-06-30
Apparatus and method for processing ranging channel in orthogonal frequency division multiple access system App 20050135230 - Yu, Chang-Wahn ; et al.	2005-06-23
Automatic gain control device and method in orthogonal frequency division multiplexing system with DC offset compensation function, and recording medium storing program containing the method App 20040202102 - Kim, Jun-Woo ; et al.	2004-10-14
Apparatus and method for multi-path search using dual code generators App 20030123402 - Kim, Dae-Ho ; et al.	2003-07-03

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